/* roulang page: index */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }

        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }

        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section__title--light {
            color: var(--text-light);
        }

        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }

        .section__head {
            margin-bottom: 48px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }

        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }

        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn--sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        .btn--lg {
            padding: 18px 36px;
            font-size: 16px;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            background: var(--primary-soft);
            color: var(--primary);
        }
        .badge--dark {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
        }
        .badge--accent {
            background: var(--secondary-soft);
            color: #00a89b;
        }

        /* ========== Header ========== */
        .top-bar-info {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 100;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .top-bar-info .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .top-bar-info__domain {
            font-family: var(--font-en);
            letter-spacing: 0.04em;
            font-size: 12px;
            color: var(--text-muted-light);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 260px;
        }
        .top-bar-info__actions {
            display: flex;
            align-items: center;
            gap: 16px;
            white-space: nowrap;
        }
        .top-bar-info__actions a {
            color: var(--text-muted-light);
            font-size: 12px;
            transition: color var(--transition);
        }
        .top-bar-info__actions a:hover {
            color: var(--secondary);
        }
        .top-bar-info__btn {
            background: var(--primary);
            color: #fff !important;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
            transition: background var(--transition);
        }
        .top-bar-info__btn:hover {
            background: var(--primary-hover);
        }

        .main-nav {
            background: var(--dark);
            height: 68px;
            display: flex;
            align-items: center;
            position: sticky;
            top: 0;
            z-index: 99;
            transition: height var(--transition), box-shadow var(--transition), background var(--transition);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .main-nav.is-scrolled {
            height: 60px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            background: rgba(11, 12, 16, 0.96);
            border-bottom-color: rgba(255, 255, 255, 0.1);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: #fff;
        }
        .nav-logo__icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-logo__text {
            white-space: nowrap;
        }
        .nav-logo__text span {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }
        .nav-menu li {
            margin: 0;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-menu a:hover,
        .nav-menu a:focus {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-menu a.is-active {
            color: var(--primary);
            background: rgba(255, 92, 0, 0.12);
            font-weight: 600;
        }
        .nav-menu a.is-active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-hamburger {
            display: none;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            color: #fff;
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: background var(--transition);
            flex-shrink: 0;
        }
        .nav-hamburger:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 12, 16, 0.98);
            z-index: 200;
            padding: 80px 24px 40px;
            overflow-y: auto;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-menu.is-open {
            display: flex;
        }
        .mobile-menu a {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            padding: 16px 20px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--primary);
            border-color: rgba(255, 92, 0, 0.3);
        }
        .mobile-menu a.is-active {
            color: var(--primary);
            border-color: rgba(255, 92, 0, 0.4);
            background: rgba(255, 92, 0, 0.12);
        }
        .mobile-menu__close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            cursor: pointer;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            background: var(--dark);
            min-height: 640px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 80px 0;
        }
        .hero__bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.45;
            z-index: 1;
        }
        .hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 12, 16, 0.75) 0%, rgba(11, 12, 16, 0.5) 40%, rgba(11, 12, 16, 0.85) 100%);
            z-index: 2;
        }
        .hero__grid-bg {
            position: absolute;
            inset: 0;
            z-index: 1;
            background-image: radial-gradient(rgba(0, 217, 200, 0.06) 1px, transparent 1px);
            background-size: 40px 40px;
            animation: gridFloat 20s linear infinite;
        }
        @keyframes gridFloat {
            0% {
                background-position: 0 0;
            }
            100% {
                background-position: 40px 40px;
            }
        }
        .hero .container {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 56px;
        }
        .hero__content {
            flex: 1 1 55%;
            max-width: 640px;
        }
        .hero__badge-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .hero__title {
            font-size: 64px;
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1px;
            color: #fff;
            margin-bottom: 20px;
        }
        .hero__title .accent {
            color: var(--primary);
            position: relative;
        }
        .hero__title .accent::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--secondary);
            border-radius: 2px;
            opacity: 0.5;
        }
        .hero__desc {
            font-size: 17px;
            color: var(--text-muted-light);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 32px;
        }
        .hero__cta-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero__stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero__stat {
            display: flex;
            flex-direction: column;
        }
        .hero__stat-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            font-family: var(--font-en);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero__stat-label {
            font-size: 13px;
            color: var(--text-muted-light);
        }

        .hero__visual {
            flex: 1 1 45%;
            max-width: 440px;
            flex-shrink: 0;
            position: relative;
        }
        .hero__preview-card {
            background: var(--dark-2);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 32px 64px rgba(0, 0, 0, 0.45);
            overflow: hidden;
            position: relative;
        }
        .hero__preview-img-wrap {
            position: relative;
            aspect-ratio: 9 / 16;
            overflow: hidden;
        }
        .hero__preview-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .hero__play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(255, 92, 0, 0.9);
            color: #fff;
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.45);
            transition: all var(--transition);
            z-index: 2;
        }
        .hero__play-btn:hover {
            background: var(--primary);
            transform: translate(-50%, -50%) scale(1.08);
            box-shadow: 0 12px 32px rgba(255, 92, 0, 0.55);
        }
        .hero__preview-bottom {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero__preview-info {
            font-size: 13px;
            color: var(--text-muted-light);
            line-height: 1.4;
            overflow: hidden;
        }
        .hero__preview-info strong {
            color: #fff;
            font-size: 14px;
            display: block;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hero__live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00d84a;
            animation: pulse 1.5s ease infinite;
            flex-shrink: 0;
        }
        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 216, 74, 0.4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(0, 216, 74, 0);
            }
        }

        /* ========== Brand Intro ========== */
        .brand-intro {
            background: var(--light-2);
            padding: 56px 0;
        }
        .brand-intro__wrap {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .brand-intro__main {
            flex: 2 1 600px;
            min-width: 300px;
        }
        .brand-intro__main h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .brand-intro__main p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .brand-intro__main p:last-child {
            margin-bottom: 0;
        }
        .brand-intro__aside {
            flex: 1 1 280px;
            min-width: 260px;
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            padding: 24px;
        }
        .brand-intro__aside h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .brand-intro__aside ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-muted);
        }
        .brand-intro__aside ul li:last-child {
            border-bottom: none;
        }
        .brand-intro__aside ul li i {
            color: var(--primary);
            font-size: 14px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== Services ========== */
        .services {
            background: #fff;
        }
        .services__grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }
        .services__card {
            background: var(--light-2);
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .services__card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .services__card--wide {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            background: linear-gradient(135deg, #fff 0%, #f9f8f3 100%);
        }
        .services__card--accent {
            background: var(--dark);
            color: #fff;
            border-color: var(--border-dark);
        }
        .services__card--accent h3 {
            color: #fff;
        }
        .services__card--accent p {
            color: var(--text-muted-light);
        }
        .services__card--accent .services__card-link {
            color: var(--secondary);
        }
        .services__card-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .services__card--accent .services__card-icon {
            background: rgba(255, 92, 0, 0.2);
            color: var(--primary);
        }
        .services__card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .services__card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .services__card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .services__card-link:hover {
            gap: 10px;
        }
        .services__bottom-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }

        /* ========== Stats ========== */
        .stats {
            background: var(--dark);
            background-image: radial-gradient(rgba(0, 217, 200, 0.08) 1px, transparent 1px);
            background-size: 36px 36px;
            padding: 64px 0;
        }
        .stats__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stats__item {
            padding: 8px;
        }
        .stats__num {
            font-size: 48px;
            font-weight: 800;
            font-family: var(--font-en);
            letter-spacing: -1px;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stats__num .suffix {
            font-size: 24px;
            font-weight: 600;
            color: var(--secondary);
            margin-left: 2px;
        }
        .stats__label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted-light);
            margin-bottom: 4px;
        }
        .stats__desc {
            font-size: 13px;
            color: var(--text-muted-light);
            opacity: 0.75;
            line-height: 1.5;
        }

        /* ========== Deep Content ========== */
        .deep-content {
            background: #fff;
        }
        .deep-content__article {
            max-width: 860px;
            margin: 0 auto 56px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
        }
        .deep-content__article:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .deep-content__article h3 {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 16px;
            line-height: 1.35;
        }
        .deep-content__article p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .deep-content__article h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 24px 0 10px;
            color: var(--text-dark);
        }
        .deep-content__article blockquote {
            margin: 20px 0;
            padding: 16px 24px;
            border-left: 3px solid var(--primary);
            background: var(--primary-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.85;
        }
        .deep-content__image {
            border-radius: var(--radius);
            overflow: hidden;
            margin: 20px 0;
            aspect-ratio: 16 / 9;
        }
        .deep-content__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== Cases ========== */
        .cases {
            background: var(--light-2);
        }
        .cases__item {
            display: flex;
            gap: 32px;
            align-items: center;
            margin-bottom: 40px;
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .cases__item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 92, 0, 0.15);
        }
        .cases__item--reverse {
            flex-direction: row-reverse;
        }
        .cases__image {
            flex: 1 1 45%;
            min-height: 280px;
            overflow: hidden;
            position: relative;
        }
        .cases__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .cases__item:hover .cases__image img {
            transform: scale(1.05);
        }
        .cases__body {
            flex: 1 1 55%;
            padding: 32px;
        }
        .cases__badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
        }
        .cases__body h3 {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .cases__body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .cases__body .btn {
            margin-top: 8px;
        }

        /* ========== Scene Demo ========== */
        .scene-demo {
            background: var(--dark);
            color: var(--text-light);
        }
        .scene-demo h2,
        .scene-demo h3 {
            color: #fff;
        }
        .scene-demo__grid {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }
        .scene-demo__steps {
            flex: 1 1 50%;
            min-width: 300px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .scene-demo__step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .scene-demo__step:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 92, 0, 0.3);
        }
        .scene-demo__step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .scene-demo__step h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .scene-demo__step p {
            font-size: 14px;
            color: var(--text-muted-light);
            line-height: 1.7;
            margin: 0;
        }
        .scene-demo__visual {
            flex: 1 1 45%;
            min-width: 300px;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .scene-demo__visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ========== News ========== */
        .news {
            background: #fff;
        }
        .news__list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news__item {
            display: flex;
            gap: 24px;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: all var(--transition);
        }
        .news__item:last-child {
            border-bottom: none;
        }
        .news__item:hover {
            padding-left: 8px;
        }
        .news__date {
            flex: 0 0 72px;
            background: var(--primary-soft);
            border-radius: 10px;
            padding: 10px 8px;
            text-align: center;
            flex-shrink: 0;
        }
        .news__date-day {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-family: var(--font-en);
        }
        .news__date-month {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 600;
        }
        .news__body {
            flex: 1;
            min-width: 0;
        }
        .news__body h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .news__body h3 a:hover {
            color: var(--primary);
        }
        .news__body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .news__btn {
            flex-shrink: 0;
            align-self: center;
        }

        /* ========== Festival ========== */
        .festival {
            background: linear-gradient(135deg, #1a0e05 0%, #2d1608 50%, #0B0C10 100%);
            color: var(--text-light);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .festival::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(rgba(255, 92, 0, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .festival h2 {
            color: #fff;
        }
        .festival__content {
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .festival__text {
            flex: 1 1 55%;
            min-width: 300px;
        }
        .festival__text h2 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }
        .festival__text p {
            font-size: 16px;
            color: var(--text-muted-light);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .festival__text ul {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }
        .festival__text ul li {
            background: rgba(255, 92, 0, 0.15);
            color: #ffb08a;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 92, 0, 0.25);
        }
        .festival__cta {
            flex: 1 1 35%;
            min-width: 280px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 32px;
            text-align: center;
        }
        .festival__cta h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .festival__cta p {
            font-size: 14px;
            color: var(--text-muted-light);
            margin-bottom: 20px;
        }

        /* ========== Streamer Wall ========== */
        .streamer-wall {
            background: var(--light-2);
        }
        .streamer-wall__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .streamer-wall__card {
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
        }
        .streamer-wall__card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .streamer-wall__img {
            aspect-ratio: 3 / 4;
            overflow: hidden;
            position: relative;
        }
        .streamer-wall__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .streamer-wall__card:hover .streamer-wall__img img {
            transform: scale(1.06);
        }
        .streamer-wall__info {
            padding: 14px 16px;
        }
        .streamer-wall__info h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .streamer-wall__info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .streamer-wall__badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            z-index: 2;
        }

        /* ========== FAQ ========== */
        .faq {
            background: #fff;
        }
        .faq__accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid rgba(0, 0, 0, 0.07);
            border-radius: 12px !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--light-2);
            transition: all var(--transition);
        }
        .accordion-item:hover {
            border-color: rgba(255, 92, 0, 0.25);
        }
        .accordion-item.is-active {
            border-color: rgba(255, 92, 0, 0.3);
            box-shadow: var(--shadow);
            background: #fff;
        }
        .accordion-title {
            font-size: 16px !important;
            font-weight: 600 !important;
            color: var(--text-dark) !important;
            padding: 18px 20px !important;
            border: none !important;
            background: transparent !important;
            transition: color var(--transition);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .accordion-title:hover {
            color: var(--primary) !important;
        }
        .accordion-title::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .accordion-item.is-active .accordion-title::after {
            content: '\f068';
        }
        .accordion-content {
            padding: 0 20px 18px !important;
            border: none !important;
            background: transparent !important;
        }
        .accordion-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0;
        }

        /* ========== Contact ========== */
        .contact {
            background: var(--dark);
            color: var(--text-light);
        }
        .contact h2 {
            color: #fff;
        }
        .contact__grid {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .contact__info {
            flex: 1 1 40%;
            min-width: 300px;
        }
        .contact__info h2 {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .contact__info p {
            font-size: 15px;
            color: var(--text-muted-light);
            line-height: 1.85;
            margin-bottom: 20px;
        }
        .contact__channels {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .contact__channel {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-muted-light);
        }
        .contact__channel i {
            width: 36px;
            height: 36px;
            background: rgba(255, 92, 0, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
        }
        .contact__form-wrap {
            flex: 1 1 50%;
            min-width: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 32px;
        }
        .contact__form-wrap label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
            display: block;
        }
        .contact__form-wrap input,
        .contact__form-wrap select,
        .contact__form-wrap textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 15px;
            color: #fff;
            font-family: var(--font-cn);
            transition: all var(--transition);
            margin-bottom: 4px;
            outline: none;
        }
        .contact__form-wrap input:focus,
        .contact__form-wrap select:focus,
        .contact__form-wrap textarea:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
        }
        .contact__form-wrap input::placeholder,
        .contact__form-wrap textarea::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .contact__form-wrap select option {
            background: var(--dark-2);
            color: #fff;
        }
        .contact__form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .contact__form-field {
            margin-bottom: 16px;
        }
        .contact__form-field--full {
            grid-column: 1 / -1;
        }

        /* ========== Footer ========== */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer__brand h3 {
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted-light);
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer__col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .footer__col ul li {
            margin-bottom: 8px;
        }
        .footer__col ul li a {
            font-size: 14px;
            color: var(--text-muted-light);
            transition: color var(--transition);
        }
        .footer__col ul li a:hover {
            color: var(--secondary);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted-light);
        }
        .footer__bottom a {
            color: var(--text-muted-light);
            font-size: 13px;
            transition: color var(--transition);
        }
        .footer__bottom a:hover {
            color: var(--secondary);
        }

        /* ========== Scroll Animation ========== */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }
        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero__title {
                font-size: 48px;
            }
            .hero__desc {
                font-size: 16px;
            }
            .hero .container {
                gap: 32px;
            }
            .services__grid {
                grid-template-columns: 1fr;
            }
            .services__card--wide {
                grid-column: auto;
                grid-row: auto;
            }
            .stats__grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .streamer-wall__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .cases__item,
            .cases__item--reverse {
                flex-direction: column;
            }
            .cases__image {
                width: 100%;
                min-height: 200px;
                flex: none;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section__title {
                font-size: 28px;
            }
            .hero {
                min-height: auto;
                padding: 48px 0 60px;
            }
            .hero__title {
                font-size: 36px;
            }
            .hero__desc {
                font-size: 15px;
                line-height: 1.75;
            }
            .hero .container {
                flex-direction: column;
                gap: 32px;
            }
            .hero__visual {
                max-width: 100%;
                width: 100%;
            }
            .hero__preview-img-wrap {
                aspect-ratio: 16 / 9;
            }
            .hero__stats {
                gap: 20px;
            }
            .hero__stat-num {
                font-size: 22px;
            }
            .nav-menu {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .top-bar-info {
                display: none;
            }
            .main-nav {
                height: 58px;
            }
            .main-nav.is-scrolled {
                height: 52px;
            }
            .stats__grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats__num {
                font-size: 36px;
            }
            .cases__body {
                padding: 20px;
            }
            .cases__body h3 {
                font-size: 18px;
            }
            .news__item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 16px 0;
            }
            .news__date {
                flex: 0 0 56px;
                padding: 8px 6px;
            }
            .news__date-day {
                font-size: 18px;
            }
            .news__btn {
                width: 100%;
                text-align: right;
            }
            .contact__form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .contact__form-wrap {
                padding: 20px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .streamer-wall__grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .streamer-wall__info {
                padding: 10px 12px;
            }
            .streamer-wall__info h3 {
                font-size: 13px;
            }
            .brand-intro__wrap {
                flex-direction: column;
                gap: 20px;
            }
            .festival__content {
                flex-direction: column;
            }
            .services__bottom-row {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero__title {
                font-size: 30px;
                letter-spacing: -0.5px;
            }
            .hero__desc {
                font-size: 14px;
            }
            .hero__cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .hero__cta-row .btn {
                width: 100%;
            }
            .hero__stats {
                gap: 16px;
                flex-wrap: wrap;
            }
            .hero__stat-num {
                font-size: 20px;
            }
            .stats__grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats__num {
                font-size: 32px;
            }
            .section__title {
                font-size: 24px;
            }
            .services__card {
                padding: 20px;
            }
            .services__card--wide {
                padding: 24px;
            }
            .news__date {
                flex: 0 0 48px;
                padding: 6px 4px;
            }
            .news__date-day {
                font-size: 16px;
            }
            .news__body h3 {
                font-size: 14px;
            }
            .news__body p {
                font-size: 13px;
            }
            .streamer-wall__grid {
                grid-template-columns: 1fr;
            }
            .deep-content__article h3 {
                font-size: 20px;
            }
            .deep-content__article p {
                font-size: 15px;
            }
            .accordion-title {
                font-size: 14px !important;
                padding: 14px 16px !important;
            }
            .accordion-content {
                padding: 0 16px 14px !important;
            }
            .accordion-content p {
                font-size: 14px;
            }
            .btn--lg {
                padding: 14px 24px;
                font-size: 15px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo__icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
            .mobile-menu a {
                font-size: 16px;
                padding: 14px 16px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .fade-up {
                opacity: 1;
                transform: none;
            }
            .hero__grid-bg {
                animation: none;
            }
            .hero__live-dot {
                animation: none;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover, a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }
        ul, ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 0.5em;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }
        p {
            margin: 0 0 1em;
            line-height: 1.85;
        }
        * {
            box-sizing: border-box;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }
        .section--warm {
            background: var(--light);
        }
        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }
        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section__title--light {
            color: var(--text-light);
        }
        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }
        .section__head {
            margin-bottom: 48px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }
        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        /* Header */
        .topbar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .topbar__domain {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted-light);
            letter-spacing: 0.03em;
        }
        .topbar__domain i {
            color: var(--secondary);
            font-size: 13px;
        }
        .topbar__actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar__actions a {
            color: var(--text-muted-light);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }
        .topbar__actions a:hover {
            color: var(--secondary);
        }
        .topbar__cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            transition: all var(--transition);
        }
        .topbar__cta:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        /* Nav */
        .header-nav {
            background: var(--light-2);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition), background var(--transition);
        }
        .header-nav.is-scrolled {
            background: rgba(11, 12, 16, 0.96);
            border-bottom-color: transparent;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
        }
        .header-nav.is-scrolled .nav-logo,
        .header-nav.is-scrolled .nav-menu a {
            color: var(--text-light);
        }
        .header-nav.is-scrolled .nav-menu a:hover,
        .header-nav.is-scrolled .nav-menu a.is-active {
            color: var(--primary);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 14px 0;
            flex-wrap: wrap;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            white-space: nowrap;
            letter-spacing: -0.5px;
            transition: color var(--transition);
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }
        .nav-logo span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-menu li a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-menu li a.is-active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }
        .nav-menu li a.is-active::after {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            margin-left: 4px;
        }
        .nav-hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }
        .nav-hamburger:hover {
            background: var(--primary-hover);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--light-2);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            padding: 16px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Category Hero */
        .cat-hero {
            background: var(--dark);
            color: var(--text-light);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,12,16,0.4) 0%, rgba(11,12,16,0.85) 100%);
            z-index: 1;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .cat-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .cat-hero h1 .tag {
            display: inline-block;
            font-size: 15px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 999px;
            margin-left: 12px;
            vertical-align: middle;
            letter-spacing: 0;
        }
        .cat-hero p {
            font-size: 18px;
            color: var(--text-muted-light);
            max-width: 560px;
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .cat-hero__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cat-hero__visual {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 28px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .cat-hero__visual .match-card {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-sm);
            padding: 18px;
            margin-bottom: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .cat-hero__visual .match-card:last-child {
            margin-bottom: 0;
        }
        .cat-hero__visual .match-team {
            font-weight: 700;
            font-size: 15px;
            color: var(--text-light);
        }
        .cat-hero__visual .match-time {
            font-size: 13px;
            color: var(--secondary);
            font-weight: 600;
            white-space: nowrap;
        }
        .cat-hero__visual .match-status {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 999px;
            background: var(--secondary-soft);
            color: var(--secondary);
            font-weight: 600;
            white-space: nowrap;
        }

        /* Content Cards Mix */
        .content-mix-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }
        .content-mix-grid .card-large {
            grid-row: span 2;
        }
        .content-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.25);
        }
        .content-card__media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--dark-3);
        }
        .content-card__media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .content-card:hover .content-card__media img {
            transform: scale(1.04);
        }
        .content-card__media .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
        }
        .content-card__media .badge--live {
            background: #E53935;
        }
        .content-card__body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card__date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .content-card__date i {
            color: var(--primary);
            font-size: 13px;
        }
        .content-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .content-card h3 a {
            color: var(--text-dark);
            transition: color var(--transition);
        }
        .content-card h3 a:hover {
            color: var(--primary);
        }
        .content-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .content-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }
        .content-card .read-more:hover {
            gap: 10px;
        }
        .content-mix-sm-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 24px;
        }
        .content-card--horizontal {
            flex-direction: row;
        }
        .content-card--horizontal .content-card__media {
            width: 40%;
            aspect-ratio: auto;
            min-height: 160px;
        }
        .content-card--horizontal .content-card__body {
            padding: 18px 20px;
            flex: 1;
        }

        /* Deep Content */
        .deep-content {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: var(--border);
            overflow: hidden;
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 0;
        }
        .deep-content__media {
            position: relative;
            min-height: 360px;
            background: url('/assets/images/coverpic/cover-7.webp') center/cover no-repeat;
        }
        .deep-content__media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 0%, rgba(11,12,16,0.4) 100%);
        }
        .deep-content__media .media-label {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            background: rgba(0,0,0,0.55);
            padding: 8px 16px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }
        .deep-content__media .media-label i {
            color: var(--secondary);
        }
        .deep-content__body {
            padding: 36px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .deep-content__body h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .deep-content__body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .deep-content__body .btn {
            align-self: flex-start;
            margin-top: 12px;
        }

        /* Data Strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            text-align: center;
        }
        .data-strip__item {
            padding: 28px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }
        .data-strip__item:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(255, 92, 0, 0.4);
            transform: translateY(-4px);
        }
        .data-strip__item .number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.1;
            margin-bottom: 6px;
            font-family: var(--font-en);
        }
        .data-strip__item .number .unit {
            font-size: 18px;
            font-weight: 600;
            margin-left: 2px;
        }
        .data-strip__item .label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            display: block;
            margin-bottom: 4px;
        }
        .data-strip__item .desc {
            font-size: 12px;
            color: var(--text-muted-light);
            line-height: 1.6;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 28px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary));
            border-radius: 1px;
        }
        .timeline__item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }
        .timeline__item:last-child {
            padding-bottom: 0;
        }
        .timeline__item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.25);
        }
        .timeline__item .time {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .timeline__item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .timeline__item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* Feature Alternating */
        .feature-alt {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 48px;
        }
        .feature-alt:last-child {
            margin-bottom: 0;
        }
        .feature-alt:nth-child(even) {
            direction: rtl;
        }
        .feature-alt:nth-child(even) > * {
            direction: ltr;
        }
        .feature-alt__media {
            border-radius: var(--radius);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--dark-3);
        }
        .feature-alt__media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .feature-alt:hover .feature-alt__media img {
            transform: scale(1.04);
        }
        .feature-alt__body h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .feature-alt__body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .feature-alt__body .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }
        .feature-alt__body .tag-list span {
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            background: var(--primary-soft);
            color: var(--primary);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 92, 0, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-dark);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition);
        }
        .faq-item.is-open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.is-open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* CTA */
        .cta-area {
            background: var(--dark);
            color: var(--text-light);
            position: relative;
            overflow: hidden;
        }
        .cta-area::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .cta-area .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cta-area h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .cta-area p {
            font-size: 16px;
            color: var(--text-muted-light);
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-form-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 28px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
        }
        .cta-form-card input,
        .cta-form-card select,
        .cta-form-card textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: var(--text-light);
            font-family: var(--font-cn);
            font-size: 14px;
            margin-bottom: 14px;
            transition: border-color var(--transition);
        }
        .cta-form-card input::placeholder,
        .cta-form-card textarea::placeholder {
            color: var(--text-muted-light);
        }
        .cta-form-card input:focus,
        .cta-form-card select:focus,
        .cta-form-card textarea:focus {
            border-color: var(--primary);
            outline: none;
        }
        .cta-form-card select option {
            background: var(--dark-2);
            color: var(--text-light);
        }
        .cta-form-card .btn {
            width: 100%;
            margin-top: 6px;
        }

        /* Footer */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding-top: 56px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.3fr 0.8fr 0.8fr 0.8fr;
            gap: 32px;
            padding-bottom: 40px;
        }
        .footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            font-size: 13px;
            color: var(--text-muted-light);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer__col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .footer__col ul li {
            margin-bottom: 8px;
        }
        .footer__col ul li a {
            font-size: 13px;
            color: var(--text-muted-light);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer__col ul li a:hover {
            color: var(--primary);
        }
        .footer__bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-muted-light);
        }
        .footer__bottom a {
            color: var(--text-muted-light);
            font-size: 12px;
        }
        .footer__bottom a:hover {
            color: var(--primary);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cat-hero h1 {
                font-size: 40px;
            }
            .cat-hero__visual {
                max-width: 480px;
            }
            .deep-content {
                grid-template-columns: 1fr;
            }
            .deep-content__media {
                min-height: 260px;
            }
            .data-strip {
                grid-template-columns: repeat(3, 1fr);
            }
            .cta-area .container {
                grid-template-columns: 1fr;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
            .content-mix-grid {
                grid-template-columns: 1fr;
            }
            .content-mix-sm-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .topbar .container {
                flex-direction: column;
                gap: 4px;
                align-items: flex-start;
            }
            .nav-inner {
                padding: 10px 0;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 2px;
                padding-top: 12px;
                border-top: 1px solid rgba(0,0,0,0.06);
                margin-top: 12px;
            }
            .header-nav.is-scrolled .nav-menu {
                border-top-color: rgba(255,255,255,0.08);
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-menu li a {
                width: 100%;
                padding: 10px 12px;
                font-size: 14px;
            }
            .nav-hamburger {
                display: flex;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section__title {
                font-size: 28px;
            }
            .cat-hero {
                padding: 56px 0;
                min-height: auto;
            }
            .cat-hero h1 {
                font-size: 32px;
            }
            .cat-hero p {
                font-size: 16px;
            }
            .content-mix-sm-grid {
                grid-template-columns: 1fr;
            }
            .content-card--horizontal {
                flex-direction: column;
            }
            .content-card--horizontal .content-card__media {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }
            .deep-content__body {
                padding: 24px 20px;
            }
            .deep-content__body h2 {
                font-size: 22px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
            }
            .data-strip__item .number {
                font-size: 32px;
            }
            .feature-alt {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-alt:nth-child(even) {
                direction: ltr;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb-bar {
                padding: 10px 0;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .cat-hero h1 .tag {
                font-size: 12px;
                padding: 3px 10px;
                margin-left: 6px;
            }
            .cat-hero {
                padding: 40px 0;
            }
            .cat-hero__actions {
                flex-direction: column;
            }
            .cat-hero__actions .btn {
                width: 100%;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .cta-form-card {
                padding: 20px;
            }
            .section__title {
                font-size: 24px;
            }
            .section__head {
                margin-bottom: 32px;
            }
            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }

        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }

        .section--light {
            background: var(--light);
        }

        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }

        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }

        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section__title--light {
            color: var(--text-light);
        }

        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        .section__desc--light {
            color: var(--text-muted-light);
        }

        .section__head {
            margin-bottom: 48px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }

        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }

        .btn:hover i {
            transform: translateX(4px);
        }

        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }

        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }

        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }

        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }

        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-2px);
        }

        .btn--dark-outline {
            background: transparent;
            color: var(--text-light);
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            box-shadow: none;
        }

        .btn--dark-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
            border-color: rgba(255, 255, 255, 0.55);
            transform: translateY(-2px);
        }

        /* Top info bar */
        .top-bar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            padding: 8px 0;
            min-height: 36px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 1002;
        }

        .top-bar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .top-bar__domain {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted-light);
            font-family: var(--font-en);
            letter-spacing: 0.02em;
        }

        .top-bar__domain i {
            color: var(--secondary);
            font-size: 12px;
        }

        .top-bar__right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .top-bar__hint {
            color: var(--text-muted-light);
            font-size: 13px;
        }

        .top-bar__action {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            background: var(--primary);
            transition: all var(--transition);
            line-height: 1.6;
        }

        .top-bar__action:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        /* Main nav */
        .site-header {
            background: rgba(11, 12, 16, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow var(--transition), padding var(--transition);
            padding: 14px 0;
        }

        .site-header.is-scrolled {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            padding: 10px 0;
        }

        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo__icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #E04A00);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(255, 92, 0, 0.35);
        }

        .logo__text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo__text span {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-menu li a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--text-muted-light);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-menu li a.is-active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(255, 92, 0, 0.3);
        }

        .nav-menu li a.is-active::after {
            content: '';
            display: inline-block;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #fff;
            margin-left: 2px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 20px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        /* Hero */
        .hero {
            background: var(--dark);
            color: var(--text-light);
            position: relative;
            overflow: hidden;
            padding: 72px 0 80px;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.25;
            z-index: 0;
        }

        .hero__bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 12, 16, 0.7) 0%, rgba(11, 12, 16, 0.9) 100%);
        }

        .hero__glow {
            position: absolute;
            top: 20%;
            right: 8%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 92, 0, 0.2), transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .hero__content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(0, 217, 200, 0.1);
            border: 1px solid rgba(0, 217, 200, 0.3);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
        }

        .hero__badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero__desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero__actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero__card {
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 28px;
            max-width: 380px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            margin-top: 0;
        }

        .hero__card-label {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .hero__card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .hero__card-text {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted-light);
            margin-bottom: 16px;
        }

        .hero__card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted-light);
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero__card-meta i {
            color: var(--primary);
            margin-right: 4px;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background: var(--light);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-muted);
            font-size: 13px;
            margin-left: 4px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Category intro / featured */
        .featured-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .featured-main {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .featured-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border);
            transition: all var(--transition);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .featured-card__img {
            position: relative;
            height: 260px;
            overflow: hidden;
        }

        .featured-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-card:hover .featured-card__img img {
            transform: scale(1.05);
        }

        .featured-card__badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            z-index: 1;
        }

        .featured-card__body {
            padding: 24px 28px;
        }

        .featured-card__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .featured-card__meta i {
            color: var(--primary);
            margin-right: 4px;
        }

        .featured-card__title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .featured-card__excerpt {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .featured-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
        }

        .featured-card__link:hover {
            gap: 12px;
            color: var(--primary-hover);
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .featured-side__card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border);
            transition: all var(--transition);
        }

        .featured-side__card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .featured-side__img {
            height: 160px;
            overflow: hidden;
        }

        .featured-side__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-side__card:hover .featured-side__img img {
            transform: scale(1.05);
        }

        .featured-side__body {
            padding: 18px 20px;
        }

        .featured-side__title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 6px;
        }

        .featured-side__meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Content cards grid */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .content-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.2);
        }

        .content-card--wide {
            grid-column: span 8;
        }

        .content-card--narrow {
            grid-column: span 4;
        }

        .content-card--half {
            grid-column: span 6;
        }

        .content-card--third {
            grid-column: span 4;
        }

        .content-card__img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .content-card--wide .content-card__img {
            height: 220px;
        }

        .content-card__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .content-card:hover .content-card__img img {
            transform: scale(1.06);
        }

        .content-card__tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 12, 16, 0.75);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            z-index: 1;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .content-card__body {
            padding: 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .content-card__meta i {
            color: var(--primary);
            margin-right: 3px;
            font-size: 11px;
        }

        .content-card__title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .content-card__excerpt {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex: 1;
        }

        .content-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
        }

        .content-card__link:hover {
            gap: 12px;
            color: var(--primary-hover);
        }

        /* Depth content */
        .depth-block {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
        }

        .depth-block__img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: var(--border);
        }

        .depth-block__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 380px;
        }

        .depth-block__content h3 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .depth-block__content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .depth-block__content p:last-child {
            margin-bottom: 0;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .stat-card__num {
            font-size: 42px;
            font-weight: 800;
            font-family: var(--font-en);
            color: var(--secondary);
            letter-spacing: -0.5px;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-card__label {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .stat-card__desc {
            font-size: 13px;
            color: var(--text-muted-light);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }

        .faq-item:hover {
            border-color: rgba(255, 92, 0, 0.2);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }

        .faq-item__header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            transition: all var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
        }

        .faq-item__header:hover {
            background: var(--primary-soft);
        }

        .faq-item__question {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            flex: 1;
        }

        .faq-item__icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .faq-item__header:hover .faq-item__icon {
            background: var(--primary);
            color: #fff;
        }

        .faq-item__body {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
        }

        .faq-item.is-open .faq-item__body {
            display: block;
            animation: fadeInUp 0.35s ease;
        }

        .faq-item.is-open .faq-item__icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        /* CTA / Contact */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .contact-info h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .contact-info p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .contact-info__list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .contact-info__list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-dark);
            list-style: none;
            margin: 0;
        }

        .contact-info__list i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
        }

        .contact-form {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            border: var(--border);
        }

        .contact-form__title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            font-family: var(--font-cn);
            font-size: 15px;
            color: var(--text-dark);
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(0, 0, 0, 0.1);
            background: var(--light-2);
            transition: all var(--transition);
            outline: none;
            box-sizing: border-box;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-soft);
            background: #fff;
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        /* Footer */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding: 56px 0 32px;
        }

        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .footer__brand h3 span {
            color: var(--primary);
        }

        .footer__brand p {
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-muted-light);
            margin-bottom: 0;
        }

        .footer__col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer__col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer__col ul li {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer__col ul li a {
            color: var(--text-muted-light);
            font-size: 14px;
            transition: all var(--transition);
        }

        .footer__col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer__bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: var(--text-muted-light);
        }

        .footer__bottom a {
            color: var(--text-muted-light);
            transition: color var(--transition);
        }

        .footer__bottom a:hover {
            color: var(--primary);
        }

        .footer__bottom span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal-on-scroll.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            .reveal-on-scroll {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .stat-card__num {
                transition: none;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
            .section__title {
                font-size: 30px;
            }
            .hero h1 {
                font-size: 42px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .depth-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .depth-block__img img {
                min-height: 280px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-card--wide {
                grid-column: span 12;
            }
            .content-card--narrow {
                grid-column: span 6;
            }
            .content-card--half {
                grid-column: span 6;
            }
            .content-card--third {
                grid-column: span 6;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                z-index: 999;
            }
            .nav-menu.is-open {
                display: flex;
                animation: fadeInUp 0.3s ease;
            }
            .nav-menu li a {
                display: flex;
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .top-bar__hint {
                display: none;
            }
            .hero {
                padding: 48px 0 56px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero__desc {
                font-size: 15px;
            }
            .hero__actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero__actions .btn {
                width: 100%;
            }
            .hero__card {
                max-width: 100%;
                margin-top: 24px;
            }
            .section__title {
                font-size: 26px;
            }
            .content-card--narrow,
            .content-card--half,
            .content-card--third {
                grid-column: span 12;
            }
            .content-card__img {
                height: 160px;
            }
            .content-card--wide .content-card__img {
                height: 180px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card__num {
                font-size: 32px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer__bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section__head {
                margin-bottom: 32px;
            }
            .section__title {
                font-size: 24px;
            }
            .hero h1 {
                font-size: 28px;
                letter-spacing: -0.5px;
            }
            .hero__desc {
                font-size: 14px;
            }
            .hero__badge {
                font-size: 12px;
                padding: 4px 12px;
            }
            .featured-card__body {
                padding: 18px 20px;
            }
            .featured-card__title {
                font-size: 18px;
            }
            .content-card__body {
                padding: 16px 18px;
            }
            .content-card__title {
                font-size: 15px;
            }
            .contact-form {
                padding: 24px 18px;
            }
            .depth-block__content h3 {
                font-size: 22px;
            }
            .top-bar__domain {
                font-size: 12px;
            }
            .top-bar__action {
                font-size: 12px;
                padding: 3px 10px;
            }
            .faq-item__header {
                padding: 14px 18px;
            }
            .faq-item__body {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .faq-item__question {
                font-size: 15px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }
        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }
        .section--gray {
            background: var(--light);
        }
        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }
        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-dark);
        }
        .section__title--light {
            color: var(--text-light);
        }
        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }
        .section__head {
            margin-bottom: 48px;
        }
        .section__head--flex {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }
        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        .btn--dark {
            background: var(--dark);
            color: #fff;
            border: 1px solid var(--dark);
        }
        .btn--dark:hover {
            background: var(--dark-2);
            color: #fff;
            transform: translateY(-2px);
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--primary-soft);
            color: var(--primary);
            line-height: 1.6;
        }
        .tag--secondary {
            background: var(--secondary-soft);
            color: #00998A;
        }
        .tag--dark {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
        }

        /* Top bar */
        .topbar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            height: 38px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 100;
        }
        .topbar__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .topbar__domain {
            font-family: var(--font-en);
            letter-spacing: 0.02em;
            color: var(--text-muted-light);
            font-size: 12px;
            white-space: nowrap;
        }
        .topbar__right {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .topbar__link {
            color: var(--text-muted-light);
            font-size: 13px;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .topbar__link:hover {
            color: var(--secondary);
        }
        .topbar__action {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(0, 217, 200, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(0, 217, 200, 0.25);
            white-space: nowrap;
            transition: all var(--transition);
        }
        .topbar__action:hover {
            background: rgba(0, 217, 200, 0.2);
            color: var(--secondary);
        }

        /* Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background: rgba(11, 12, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            background: rgba(11, 12, 16, 0.98);
        }
        .site-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-cn);
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand__icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .brand span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            display: block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-menu li a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-menu li a.is-active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 600;
        }
        .nav-menu li a.is-active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
            font-size: 20px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--primary);
        }
        .nav-cta {
            flex-shrink: 0;
            font-size: 13px;
            padding: 10px 20px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #C0C4CC;
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Category Hero */
        .cat-hero {
            background: var(--dark);
            position: relative;
            overflow: hidden;
            padding: 56px 0 88px;
        }
        .cat-hero__bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            z-index: 0;
        }
        .cat-hero__overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(11,12,16,0.4) 0%, rgba(11,12,16,0.85) 65%, rgba(11,12,16,0.95) 100%);
            z-index: 1;
        }
        .cat-hero__content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .cat-hero__title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            color: #fff;
            margin: 0 0 16px;
        }
        .cat-hero__title span {
            color: var(--primary);
        }
        .cat-hero__desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 620px;
            margin-bottom: 32px;
        }
        .cat-hero__search {
            display: flex;
            gap: 10px;
            max-width: 560px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .cat-hero__search input {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-full);
            color: #fff;
            font-size: 14px;
            padding: 14px 22px;
            font-family: var(--font-cn);
            transition: all var(--transition);
        }
        .cat-hero__search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .cat-hero__search input:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
        }
        .cat-hero__tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .cat-hero__tags a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            transition: all var(--transition);
        }
        .cat-hero__tags a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* Cards Grid */
        .cards-mixed {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .card-item {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .card-item--wide {
            grid-column: span 7;
        }
        .card-item--medium {
            grid-column: span 5;
        }
        .card-item--half {
            grid-column: span 6;
        }
        .card-item--third {
            grid-column: span 4;
        }
        .card-item--quarter {
            grid-column: span 3;
        }
        .card-item__img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--light);
        }
        .card-item--wide .card-item__img {
            aspect-ratio: 21 / 9;
        }
        .card-item__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-item:hover .card-item__img img {
            transform: scale(1.06);
        }
        .card-item__badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }
        .card-item__body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-item__date {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-item__title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-dark);
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .card-item:hover .card-item__title {
            color: var(--primary);
        }
        .card-item__excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
            flex: 1;
        }
        .card-item__more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            align-self: flex-start;
        }
        .card-item__more i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .card-item__more:hover {
            color: var(--primary-hover);
        }
        .card-item__more:hover i {
            transform: translateX(4px);
        }

        /* Deep content */
        .deep-content {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: var(--border);
            box-shadow: var(--shadow);
        }
        .deep-content__grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 0;
        }
        .deep-content__img {
            position: relative;
            min-height: 420px;
            overflow: hidden;
        }
        .deep-content__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }
        .deep-content__img::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent 60%, rgba(11,12,16,0.5) 100%);
        }
        .deep-content__body {
            padding: 48px;
        }
        .deep-content__body h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .deep-content__body p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .deep-content__body p:last-child {
            margin-bottom: 0;
        }
        .deep-content__body .lead {
            font-size: 17px;
            color: var(--text-dark);
            font-weight: 500;
        }

        /* Data strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            padding: 0;
        }
        .data-strip__item {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .data-strip__item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 92, 0, 0.3);
        }
        .data-strip__num {
            font-family: var(--font-en);
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }
        .data-strip__label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 4px;
        }
        .data-strip__desc {
            font-size: 12px;
            color: var(--text-muted-light);
            line-height: 1.6;
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            border: var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            position: relative;
            counter-increment: step;
        }
        .step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .step-card::before {
            content: counter(step, decimal-leading-zero);
            font-family: var(--font-en);
            font-size: 48px;
            font-weight: 800;
            color: var(--primary-soft);
            position: absolute;
            top: 16px;
            right: 24px;
            letter-spacing: -0.03em;
            line-height: 1;
        }
        .step-card__icon {
            width: 48px;
            height: 48px;
            background: var(--primary-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 92, 0, 0.2);
        }
        .faq-item.is-open {
            border-color: rgba(255, 92, 0, 0.3);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        }
        .faq-item__question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: color var(--transition);
        }
        .faq-item__question:hover {
            color: var(--primary);
        }
        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background: var(--primary-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 13px;
            transition: all 0.4s ease;
        }
        .faq-item.is-open .faq-item__icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-item__answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.9;
        }
        .faq-item.is-open .faq-item__answer {
            display: block;
            animation: faqFadeIn 0.35s ease;
        }
        @keyframes faqFadeIn {
            from { opacity: 0; transform: translateY(-6px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* CTA Form */
        .cta-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section__bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: start;
        }
        .cta-info h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-info p {
            font-size: 15px;
            color: var(--text-muted-light);
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .cta-info__list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }
        .cta-info__list li {
            font-size: 14px;
            color: var(--text-muted-light);
            padding-left: 24px;
            position: relative;
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .cta-info__list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 1px;
            color: var(--secondary);
            font-size: 12px;
        }
        .contact-form {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.3);
        }
        .contact-form h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            font-family: var(--font-cn);
            font-size: 14px;
            color: var(--text-dark);
            background: var(--light-2);
            border: 1.5px solid rgba(0, 0, 0, 0.08);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            transition: all var(--transition);
            resize: vertical;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
        }

        /* Footer */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding: 56px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer__brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            font-size: 13px;
            line-height: 1.9;
            color: var(--text-muted-light);
            margin: 0;
        }
        .footer__col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer__col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer__col ul li {
            margin-bottom: 8px;
        }
        .footer__col ul li a {
            font-size: 13px;
            color: var(--text-muted-light);
            transition: all var(--transition);
            display: inline-block;
        }
        .footer__col ul li a:hover {
            color: var(--primary);
            transform: translateX(3px);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted-light);
        }
        .footer__bottom a {
            color: var(--text-muted-light);
            transition: color var(--transition);
        }
        .footer__bottom a:hover {
            color: var(--secondary);
        }
        .footer__bottom span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Reveal animation */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.is-visible {
            opacity: 1;
            transform: translateY(0);
        }
        .reveal-delay-1 { transition-delay: 0.1s; }
        .reveal-delay-2 { transition-delay: 0.2s; }
        .reveal-delay-3 { transition-delay: 0.3s; }

        @media (prefers-reduced-motion: reduce) {
            .reveal,
            .card-item,
            .step-card,
            .faq-item,
            .btn,
            .nav-menu li a,
            .cat-hero__tags a {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                transform: none !important;
            }
            html {
                scroll-behavior: auto;
            }
            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
            .section__title {
                font-size: 30px;
            }
            .cat-hero__title {
                font-size: 40px;
            }
            .cards-mixed {
                gap: 16px;
            }
            .card-item--wide,
            .card-item--medium,
            .card-item--half,
            .card-item--third,
            .card-item--quarter {
                grid-column: span 6;
            }
            .deep-content__grid {
                grid-template-columns: 1fr;
            }
            .deep-content__img {
                min-height: 260px;
                position: relative;
            }
            .deep-content__img img {
                position: relative;
                height: 100%;
            }
            .deep-content__img::after {
                display: none;
            }
            .data-strip {
                grid-template-columns: repeat(3, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
            body {
                font-size: 15px;
            }
            .topbar {
                height: 34px;
            }
            .topbar__domain {
                font-size: 10px;
            }
            .topbar__right {
                gap: 8px;
            }
            .topbar__link {
                font-size: 11px;
            }
            .site-nav {
                height: 60px;
            }
            .brand {
                font-size: 17px;
            }
            .brand__icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 20px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
                z-index: 100;
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-menu li a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-menu li a.is-active::after {
                left: 16px;
                right: auto;
                width: 3px;
                height: 20px;
                top: 50%;
                transform: translateY(-50%);
                bottom: auto;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .cat-hero {
                padding: 40px 0 56px;
            }
            .cat-hero__title {
                font-size: 32px;
            }
            .cat-hero__desc {
                font-size: 15px;
            }
            .section__title {
                font-size: 26px;
            }
            .cards-mixed {
                gap: 12px;
            }
            .card-item--wide,
            .card-item--medium,
            .card-item--half,
            .card-item--third,
            .card-item--quarter {
                grid-column: span 12;
            }
            .card-item__body {
                padding: 18px;
            }
            .deep-content__body {
                padding: 24px;
            }
            .deep-content__body h2 {
                font-size: 22px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-strip__num {
                font-size: 30px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .contact-form {
                padding: 20px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer__bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 8px;
            }
            .section__head--flex {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero__title {
                font-size: 28px;
            }
            .cat-hero__search {
                flex-direction: column;
            }
            .cat-hero__search input {
                width: 100%;
            }
            .cat-hero__search .btn {
                width: 100%;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-strip__item {
                padding: 16px 12px;
            }
            .data-strip__num {
                font-size: 26px;
            }
            .section__title {
                font-size: 23px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }
        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }

        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }

        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section__title--light {
            color: var(--text-light);
        }

        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }

        .section__head {
            margin-bottom: 48px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }

        /* Top Info Bar */
        .topbar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            padding: 8px 0;
            min-height: 38px;
            display: flex;
            align-items: center;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .topbar__domain {
            font-family: var(--font-en);
            letter-spacing: 0.03em;
            color: var(--text-muted-light);
        }
        .topbar__right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar__link {
            color: var(--text-muted-light);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topbar__link:hover {
            color: var(--secondary);
        }
        .topbar__cta {
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .topbar__cta:hover {
            background: var(--primary-hover);
            color: #fff;
        }

        /* Main Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.is-scrolled {
            background: rgba(11, 12, 16, 0.95);
            border-bottom-color: transparent;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
        }
        .site-header.is-scrolled .site-nav .nav-menu > li > a {
            color: var(--text-light);
        }
        .site-header.is-scrolled .site-nav .nav-menu > li > a.is-active {
            color: var(--primary);
        }
        .site-header.is-scrolled .site-nav .nav-logo {
            color: var(--text-light);
        }
        .site-header.is-scrolled .site-nav .nav-logo span {
            color: var(--primary);
        }
        .site-header.is-scrolled .site-nav .nav-toggle span {
            background: var(--text-light);
        }
        .site-header.is-scrolled .site-nav .nav-cta span {
            color: var(--text-light);
        }

        .site-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .nav-logo span {
            color: var(--primary);
            transition: color var(--transition);
        }
        .nav-logo i {
            font-size: 24px;
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu > li > a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu > li > a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-menu > li > a.is-active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta span {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Hero */
        .page-hero {
            position: relative;
            background: var(--dark);
            color: var(--text-light);
            padding: 96px 0 80px;
            overflow: hidden;
        }
        .page-hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }
        .page-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 12, 16, 0.88) 0%, rgba(11, 12, 16, 0.55) 60%, rgba(11, 12, 16, 0.3) 100%);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 92, 0, 0.15);
            border: 1px solid rgba(255, 92, 0, 0.35);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .page-hero__badge i {
            font-size: 12px;
        }
        .page-hero h1 {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            max-width: 720px;
        }
        .page-hero h1 em {
            font-style: normal;
            color: var(--primary);
        }
        .page-hero__desc {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 620px;
            margin-bottom: 36px;
        }
        .page-hero__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--light);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            padding: 16px 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--primary);
        }
        .breadcrumb-bar .sep {
            color: #c0c4cc;
            font-size: 12px;
        }
        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Guide Featured Cards */
        .guide-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
        }
        .guide-grid--alt {
            grid-template-columns: 1fr 2fr;
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .guide-card__media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--dark-2);
        }
        .guide-card__media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .guide-card:hover .guide-card__media img {
            transform: scale(1.04);
        }
        .guide-card__badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 700;
            z-index: 2;
        }
        .guide-card__time {
            position: absolute;
            bottom: 14px;
            right: 14px;
            background: rgba(0, 0, 0, 0.7);
            color: #fff;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            z-index: 2;
        }
        .guide-card__body {
            padding: 28px 28px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .guide-card__meta i {
            color: var(--primary);
            font-size: 12px;
        }
        .guide-card__title {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .guide-card__title a {
            color: inherit;
        }
        .guide-card__title a:hover {
            color: var(--primary);
        }
        .guide-card__excerpt {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 20px;
            flex: 1;
        }
        .guide-card__link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .guide-card__link i {
            transition: transform var(--transition);
        }
        .guide-card__link:hover i {
            transform: translateX(5px);
        }

        .guide-card--wide .guide-card__media {
            aspect-ratio: 16/7;
        }

        .guide-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        /* Deep Content */
        .deep-content {
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .deep-content__grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 0;
        }
        .deep-content__media {
            min-height: 400px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .deep-content__media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(11, 12, 16, 0.1), rgba(11, 12, 16, 0.5));
        }
        .deep-content__body {
            padding: 48px 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .deep-content__label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .deep-content__title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 20px;
            color: var(--text-dark);
        }
        .deep-content__text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.95;
            margin-bottom: 16px;
        }
        .deep-content__text p:last-child {
            margin-bottom: 0;
        }

        /* Tips List */
        .tips-section {
            background: var(--light);
        }
        .tips-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .tip-item {
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            border: var(--border);
            box-shadow: var(--shadow);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .tip-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .tip-item__num {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            font-family: var(--font-en);
        }
        .tip-item__content h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .tip-item__content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* Stats */
        .stats-band {
            background: var(--dark-2);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
            padding: 56px 0;
        }
        .stats-band .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item__num {
            font-size: 44px;
            font-weight: 800;
            font-family: var(--font-en);
            color: var(--secondary);
            letter-spacing: -1px;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-item__num span {
            color: var(--primary);
        }
        .stat-item__label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 6px;
        }
        .stat-item__desc {
            font-size: 13px;
            color: var(--text-muted-light);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-section {
            background: var(--light-2);
        }
        .accordion-faq {
            margin-top: 32px;
            border: none;
        }
        .accordion-faq .accordion-item {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .accordion-faq .accordion-item:hover {
            border-color: rgba(255, 92, 0, 0.25);
        }
        .accordion-faq .accordion-title {
            background: #fff;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            width: 100%;
            transition: all var(--transition);
        }
        .accordion-faq .accordion-title:hover {
            color: var(--primary);
        }
        .accordion-faq .accordion-title .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition);
        }
        .accordion-faq .accordion-item.is-active .accordion-title .icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .accordion-faq .accordion-content {
            background: var(--light-2);
            border-top: 1px solid rgba(0, 0, 0, 0.04);
            padding: 20px 24px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
        }

        /* CTA Form */
        .cta-section {
            background: var(--dark);
            color: var(--text-light);
            padding: 72px 0;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 48px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-info h2 span {
            color: var(--primary);
        }
        .cta-info p {
            font-size: 16px;
            color: var(--text-muted-light);
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .cta-info ul {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .cta-info ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text-muted-light);
            margin-bottom: 10px;
        }
        .cta-info ul li i {
            color: var(--secondary);
            font-size: 14px;
        }

        .form-box {
            background: var(--dark-2);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius);
            padding: 36px;
        }
        .form-box h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-light);
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted-light);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            color: var(--text-light);
            font-size: 15px;
            font-family: var(--font-cn);
            transition: all var(--transition);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.2);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }
        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23A8ACB5' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
        }
        .form-group select option {
            background: var(--dark-2);
            color: var(--text-light);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }
        .form-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 16px;
            border-radius: var(--radius-full);
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition);
            font-family: var(--font-cn);
        }
        .form-submit:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
        }

        /* Footer */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding: 60px 0 0;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer__brand h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 320px;
        }
        .footer__col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer__col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer__col ul li {
            margin-bottom: 10px;
        }
        .footer__col ul a {
            font-size: 14px;
            color: var(--text-muted-light);
        }
        .footer__col ul a:hover {
            color: var(--primary);
        }
        .footer__bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0;
            font-size: 13px;
            color: var(--text-muted-light);
        }
        .footer__bottom a {
            color: var(--text-muted-light);
        }
        .footer__bottom a:hover {
            color: var(--primary);
        }
        .footer__bottom span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        /* Scroll Animations */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }
        .fade-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .fade-up {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .guide-card,
            .tip-item,
            .btn {
                transition: none;
            }
            .guide-card:hover,
            .tip-item:hover,
            .btn:hover {
                transform: none;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 56px 0;
            }
            .section__title {
                font-size: 30px;
            }
            .page-hero h1 {
                font-size: 44px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid--alt {
                grid-template-columns: 1fr;
            }
            .deep-content__grid {
                grid-template-columns: 1fr;
            }
            .deep-content__media {
                min-height: 260px;
            }
            .deep-content__body {
                padding: 32px 28px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .stats-band .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 4px;
                display: none;
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
                border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            }
            .site-header.is-scrolled .nav-menu {
                background: var(--dark);
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-menu > li {
                width: 100%;
            }
            .nav-menu > li > a {
                display: block;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta span {
                display: none;
            }
            .topbar__domain {
                font-size: 12px;
            }
            .page-hero {
                padding: 64px 0 56px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .page-hero__desc {
                font-size: 16px;
            }
            .guide-row {
                grid-template-columns: 1fr;
            }
            .tips-list {
                grid-template-columns: 1fr;
            }
            .stats-band .container {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item__num {
                font-size: 32px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .form-box {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section__title {
                font-size: 26px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero__actions {
                flex-direction: column;
            }
            .page-hero__actions .btn {
                width: 100%;
            }
            .stats-band .container {
                grid-template-columns: 1fr;
            }
            .stat-item__num {
                font-size: 36px;
            }
            .deep-content__body {
                padding: 24px 18px;
            }
            .deep-content__title {
                font-size: 22px;
            }
            .guide-card__body {
                padding: 20px 18px 18px;
            }
            .guide-card__title {
                font-size: 18px;
            }
            .topbar__right .topbar__link {
                font-size: 11px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }
        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }
        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section__title--light {
            color: var(--text-light);
        }
        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }
        .section__head {
            margin-bottom: 48px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }
        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
        }

        /* 顶部信息条 */
        .topbar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            min-height: 40px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 100;
        }
        .topbar__inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        .topbar__domain {
            letter-spacing: 0.04em;
            font-family: var(--font-en);
            color: var(--text-muted-light);
        }
        .topbar__actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .topbar__link {
            color: var(--text-muted-light);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }
        .topbar__link:hover {
            color: var(--secondary);
        }
        .topbar__btn {
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: all var(--transition);
        }
        .topbar__btn:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        /* 主导航 */
        .header {
            background: var(--light-2);
            min-height: 72px;
            display: flex;
            align-items: center;
            position: relative;
            z-index: 99;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: box-shadow var(--transition), min-height var(--transition);
        }
        .header.is-sticky {
            position: sticky;
            top: 0;
            background: var(--dark);
            border-bottom: none;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
            min-height: 64px;
        }
        .header.is-sticky .logo__text {
            color: var(--text-light);
        }
        .header.is-sticky .nav-menu a {
            color: var(--text-muted-light);
        }
        .header.is-sticky .nav-menu a:hover,
        .header.is-sticky .nav-menu a.is-active {
            color: var(--primary);
        }
        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo__icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }
        .logo__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            transition: color var(--transition);
        }
        .logo__text span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            padding: 8px 4px;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-menu a:hover,
        .nav-menu a.is-active {
            color: var(--primary);
        }
        .nav-menu a:hover::after,
        .nav-menu a.is-active::after {
            width: 100%;
        }
        .header__cta {
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .header.is-sticky .hamburger span {
            background: var(--text-light);
        }

        /* 面包屑 */
        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            padding: 20px 0;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Hero */
        .coop-hero {
            background: var(--dark);
            color: var(--text-light);
            padding: 80px 0 96px;
            position: relative;
            overflow: hidden;
        }
        .coop-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(255, 92, 0, 0.18), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .coop-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0, 217, 200, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .coop-hero__inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .coop-hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 92, 0, 0.15);
            border: 1px solid rgba(255, 92, 0, 0.3);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }
        .coop-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: var(--text-light);
        }
        .coop-hero h1 span {
            color: var(--primary);
        }
        .coop-hero__desc {
            font-size: 17px;
            color: var(--text-muted-light);
            max-width: 520px;
            line-height: 1.9;
            margin-bottom: 32px;
        }
        .coop-hero__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .coop-hero__stats {
            display: flex;
            gap: 24px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .coop-hero__stat {
            text-align: left;
        }
        .coop-hero__stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            font-family: var(--font-en);
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .coop-hero__stat-label {
            font-size: 13px;
            color: var(--text-muted-light);
            margin-top: 4px;
        }
        .coop-hero__visual {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 32px 64px rgba(0, 0, 0, 0.35);
            aspect-ratio: 16/10;
        }
        .coop-hero__visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .coop-hero__visual::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(11, 12, 16, 0.5) 0%, transparent 60%);
            pointer-events: none;
        }
        .coop-hero__visual-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 2;
            background: rgba(11, 12, 16, 0.75);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-light);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* 合作类型 */
        .coop-types {
            background: var(--light-2);
            padding: var(--section-pad) 0;
        }
        .coop-types__grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .coop-card {
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            padding: 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }
        .coop-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.2);
        }
        .coop-card--wide {
            grid-column: span 7;
        }
        .coop-card--narrow {
            grid-column: span 5;
        }
        .coop-card--half {
            grid-column: span 6;
        }
        .coop-card--third {
            grid-column: span 4;
        }
        .coop-card__icon {
            width: 48px;
            height: 48px;
            background: var(--primary-soft);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            flex-shrink: 0;
        }
        .coop-card__title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin: 0;
        }
        .coop-card__desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }
        .coop-card__link {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            transition: gap var(--transition);
        }
        .coop-card__link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }
        .coop-card__image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 16/9;
            margin-bottom: 4px;
        }
        .coop-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .coop-card:hover .coop-card__image img {
            transform: scale(1.04);
        }

        /* 深度内容 */
        .deep-content {
            background: var(--light);
            padding: var(--section-pad) 0;
        }
        .deep-content__layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .deep-content__article {
            font-size: 16px;
            line-height: 2;
            color: var(--text-dark);
        }
        .deep-content__article h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }
        .deep-content__article p {
            margin-bottom: 16px;
        }
        .deep-content__article blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: var(--primary-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 15px;
            color: var(--text-muted);
            margin: 24px 0;
            line-height: 1.9;
        }
        .deep-content__sidebar {
            position: sticky;
            top: 90px;
        }
        .deep-content__side-card {
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 16px;
        }
        .deep-content__side-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .deep-content__side-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .deep-content__side-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            font-size: 15px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .deep-content__side-card ul li:last-child {
            border-bottom: none;
        }
        .deep-content__side-card ul li i {
            color: var(--primary);
            font-size: 14px;
        }

        /* 数据带 */
        .stats-band {
            background: var(--dark-2);
            padding: 56px 0;
            color: var(--text-light);
        }
        .stats-band__grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stats-band__item {
            padding: 16px;
        }
        .stats-band__num {
            font-size: 40px;
            font-weight: 800;
            color: var(--secondary);
            font-family: var(--font-en);
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .stats-band__label {
            font-size: 14px;
            color: var(--text-muted-light);
            margin-top: 6px;
        }
        .stats-band__desc {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 4px;
        }

        /* 合作流程 */
        .process {
            background: var(--light-2);
            padding: var(--section-pad) 0;
        }
        .process__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process__step {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius);
            border: var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .process__step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .process__num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-family: var(--font-en);
        }
        .process__title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .process__desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* FAQ */
        .faq {
            background: var(--light);
            padding: var(--section-pad) 0;
        }
        .faq__list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq__item {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq__item.is-active {
            border-color: rgba(255, 92, 0, 0.25);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        }
        .faq__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            gap: 16px;
            transition: color var(--transition);
        }
        .faq__question:hover {
            color: var(--primary);
        }
        .faq__icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .faq__item.is-active .faq__icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq__item.is-active .faq__answer {
            max-height: 400px;
        }
        .faq__answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.9;
        }

        /* CTA */
        .cta {
            background: var(--dark);
            padding: var(--section-pad) 0;
            color: var(--text-light);
            position: relative;
            overflow: hidden;
        }
        .cta::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -30%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 92, 0, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta__inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .cta__info h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta__info p {
            color: var(--text-muted-light);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .cta__contact-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta__contact-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-muted-light);
            font-size: 15px;
        }
        .cta__contact-list li i {
            color: var(--secondary);
            width: 20px;
            text-align: center;
        }
        .cta__form {
            background: rgba(255, 255, 255, 0.04);
            border: var(--border-dark);
            border-radius: var(--radius);
            padding: 32px;
        }
        .cta__form .form-row {
            margin-bottom: 20px;
        }
        .cta__form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-light);
        }
        .cta__form input,
        .cta__form select,
        .cta__form textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            color: var(--text-light);
            font-size: 15px;
            font-family: var(--font-cn);
            transition: border-color var(--transition), background var(--transition);
            outline: none;
        }
        .cta__form input:focus,
        .cta__form select:focus,
        .cta__form textarea:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.08);
        }
        .cta__form input::placeholder,
        .cta__form textarea::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        .cta__form select option {
            color: var(--text-dark);
            background: #fff;
        }
        .cta__form textarea {
            resize: vertical;
            min-height: 120px;
        }
        .cta__form .btn {
            width: 100%;
        }

        /* 页脚 */
        .footer {
            background: var(--dark);
            color: var(--text-light);
            padding: 56px 0 24px;
            font-size: 15px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            color: var(--text-muted-light);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
            max-width: 320px;
        }
        .footer__col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer__col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer__col ul li {
            margin-bottom: 10px;
        }
        .footer__col ul li a {
            color: var(--text-muted-light);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer__col ul li a:hover {
            color: var(--primary);
        }
        .footer__bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            justify-content: space-between;
            align-items: center;
        }
        .footer__bottom a {
            color: rgba(255, 255, 255, 0.4);
            transition: color var(--transition);
        }
        .footer__bottom a:hover {
            color: var(--primary);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .coop-hero__inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .coop-hero h1 {
                font-size: 40px;
            }
            .coop-hero__visual {
                aspect-ratio: 16/9;
            }
            .coop-card--wide,
            .coop-card--narrow {
                grid-column: span 6;
            }
            .coop-card--half {
                grid-column: span 6;
            }
            .coop-card--third {
                grid-column: span 6;
            }
            .deep-content__layout {
                grid-template-columns: 1fr;
            }
            .deep-content__sidebar {
                position: static;
            }
            .stats-band__grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .process__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta__inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .topbar__inner {
                flex-direction: column;
                gap: 4px;
                padding: 6px 0;
            }
            .hamburger {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-menu a {
                color: var(--text-muted-light) !important;
                padding: 10px 4px;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .header__cta {
                display: none;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section__title {
                font-size: 28px;
            }
            .coop-hero {
                padding: 56px 0 64px;
            }
            .coop-hero h1 {
                font-size: 32px;
            }
            .coop-hero__stats {
                gap: 16px;
            }
            .coop-hero__stat-num {
                font-size: 24px;
            }
            .coop-types__grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .coop-card--wide,
            .coop-card--narrow,
            .coop-card--half,
            .coop-card--third {
                grid-column: span 12;
            }
            .stats-band__grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-band__num {
                font-size: 28px;
            }
            .process__grid {
                grid-template-columns: 1fr;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .coop-hero h1 {
                font-size: 28px;
            }
            .coop-hero__desc {
                font-size: 15px;
            }
            .coop-hero__actions {
                flex-direction: column;
            }
            .coop-hero__actions .btn {
                width: 100%;
            }
            .stats-band__grid {
                grid-template-columns: 1fr;
            }
            .cta__form {
                padding: 20px;
            }
            .faq__question {
                padding: 16px 18px;
                font-size: 15px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #FF5C00;
            --primary-hover: #FF6E1A;
            --primary-soft: rgba(255, 92, 0, 0.08);
            --secondary: #00D9C8;
            --secondary-soft: rgba(0, 217, 200, 0.1);
            --dark: #0B0C10;
            --dark-2: #14161C;
            --dark-3: #1E2028;
            --light: #F5F4F0;
            --light-2: #FBFAF7;
            --text-dark: #111318;
            --text-light: #F7F7F7;
            --text-muted: #6A6F77;
            --text-muted-light: #A8ACB5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-full: 999px;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.12);
            --border: 1px solid rgba(0, 0, 0, 0.06);
            --border-dark: 1px solid rgba(255, 255, 255, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-cn: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --font-en: 'Inter', 'Manrope', 'SF Pro Display', 'Arial', sans-serif;
            --section-pad: 72px;
            --section-pad-mobile: 40px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-dark);
            background: var(--light-2);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), opacity var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-pad) 0;
        }
        .section--dark {
            background: var(--dark);
            color: var(--text-light);
        }
        .section--dark h2,
        .section--dark h3,
        .section--dark h4 {
            color: var(--text-light);
        }
        .section--light {
            background: var(--light);
        }
        .section--white {
            background: #fff;
        }
        .section__label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
            position: relative;
        }
        .section__label::after {
            content: '';
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--primary);
            margin-left: 10px;
            vertical-align: middle;
            border-radius: 1px;
        }
        .section__title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .section__title--light {
            color: var(--text-light);
        }
        .section__desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 0;
        }
        .section__desc--light {
            color: var(--text-muted-light);
        }
        .section__head {
            margin-bottom: 48px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-family: var(--font-cn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            line-height: 1.4;
            position: relative;
            overflow: hidden;
        }
        .btn i {
            font-size: 14px;
            transition: transform var(--transition);
        }
        .btn:hover i {
            transform: translateX(4px);
        }
        .btn--primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
        }
        .btn--primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 92, 0, 0.25);
        }
        .btn--secondary {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            box-shadow: none;
        }
        .btn--secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn--light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn--light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        .btn--dark {
            background: var(--dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
        }
        .btn--dark:hover {
            background: var(--dark-3);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            line-height: 1.5;
        }
        .tag--primary {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .tag--secondary {
            background: var(--secondary-soft);
            color: #00B3A6;
        }
        .tag--dark {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-light);
        }

        /* 顶部信息条 */
        .top-bar {
            background: var(--dark);
            color: var(--text-muted-light);
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .top-bar__wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .top-bar__left {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-en);
            font-size: 12px;
            letter-spacing: 0.02em;
        }
        .top-bar__left i {
            color: var(--secondary);
            font-size: 12px;
        }
        .top-bar__right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .top-bar__link {
            color: var(--text-muted-light);
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }
        .top-bar__link:hover {
            color: var(--secondary);
        }

        /* 主导航 */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .main-header.is-scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
            background: rgba(255, 255, 255, 0.99);
        }
        .main-header__wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo i {
            color: var(--primary);
            font-size: 24px;
        }
        .logo span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            margin: 0;
        }
        .nav-menu a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: var(--radius-full);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-menu a.is-active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-dark);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-soft);
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb__sep {
            margin: 0 8px;
            color: #C0C4CC;
        }
        .breadcrumb__current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Hero */
        .category-hero {
            background: var(--dark);
            color: var(--text-light);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.28;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 12, 16, 0.92) 0%, rgba(11, 12, 16, 0.7) 50%, rgba(11, 12, 16, 0.5) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero__content {
            max-width: 720px;
        }
        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: #fff;
        }
        .category-hero h1 .highlight {
            color: var(--primary);
        }
        .category-hero__desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 600px;
            margin-bottom: 28px;
        }
        .category-hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .category-hero__stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 36px;
        }
        .category-hero__stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .category-hero__stat-number {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            font-family: var(--font-en);
            letter-spacing: -0.5px;
        }
        .category-hero__stat-number em {
            font-style: normal;
            font-size: 16px;
            color: var(--secondary);
            margin-left: 2px;
        }
        .category-hero__stat-label {
            font-size: 13px;
            color: var(--text-muted-light);
        }

        /* 社区特色功能卡片 */
        .feature-card {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.15);
        }
        .feature-card__icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            font-size: 22px;
            margin-bottom: 16px;
            background: var(--primary-soft);
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-card__icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card--wide {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .feature-card__link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .feature-card__link i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .feature-card__link:hover i {
            transform: translateX(4px);
        }

        /* 话题列表 */
        .topic-card {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(255, 92, 0, 0.15);
        }
        .topic-card__img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .topic-card__body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .topic-card__meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .topic-card__date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card__date i {
            color: var(--primary);
        }
        .topic-card__tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 2px 10px;
            border-radius: var(--radius-full);
        }
        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .topic-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .topic-card__link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .topic-card__link i {
            font-size: 12px;
            transition: transform var(--transition);
        }
        .topic-card__link:hover i {
            transform: translateX(4px);
        }

        /* 深度内容块 */
        .deep-content {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius);
            padding: 48px 52px;
        }
        .deep-content--dark {
            background: var(--dark-2);
            border: var(--border-dark);
            color: var(--text-light);
        }
        .deep-content--dark h2 {
            color: #fff;
        }
        .deep-content--dark p {
            color: var(--text-muted-light);
        }
        .deep-content h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 20px;
        }
        .deep-content p {
            font-size: 15px;
            line-height: 1.95;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        .deep-content--dark p {
            color: var(--text-muted-light);
        }
        .deep-content__img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            overflow: hidden;
        }
        .deep-content__img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        /* 数据统计 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.05);
            border: var(--border-dark);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-4px);
        }
        .stat-item__number {
            font-size: 42px;
            font-weight: 800;
            font-family: var(--font-en);
            letter-spacing: -1px;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-item__label {
            font-size: 14px;
            color: var(--text-muted-light);
            font-weight: 500;
        }
        .stat-item__sublabel {
            font-size: 12px;
            color: var(--text-muted-light);
            opacity: 0.7;
            margin-top: 4px;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 92, 0, 0.15);
        }
        .faq-item.is-open {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-item__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            transition: color var(--transition);
            user-select: none;
        }
        .faq-item__question:hover {
            color: var(--primary);
        }
        .faq-item__icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 14px;
            transition: all var(--transition);
        }
        .faq-item.is-open .faq-item__icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-item__answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.9;
            display: none;
        }
        .faq-item.is-open .faq-item__answer {
            display: block;
            animation: fadeInUp 0.3s ease;
        }

        /* CTA */
        .cta-section {
            background: var(--dark);
            color: var(--text-light);
            padding: var(--section-pad) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section__grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .cta-section__info h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
        }
        .cta-section__info p {
            font-size: 15px;
            color: var(--text-muted-light);
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .cta-section__contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 14px;
            color: var(--text-muted-light);
        }
        .cta-section__contact i {
            color: var(--secondary);
            width: 20px;
            text-align: center;
            margin-right: 8px;
        }
        .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border: var(--border-dark);
            border-radius: var(--radius);
            padding: 32px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .cta-form label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted-light);
            margin-bottom: 6px;
            display: block;
        }
        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 15px;
            color: #fff;
            font-family: var(--font-cn);
            transition: all var(--transition);
            margin-bottom: 16px;
            -webkit-appearance: none;
            appearance: none;
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.12);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 217, 200, 0.15);
        }
        .cta-form select option {
            color: var(--text-dark);
            background: #fff;
        }
        .cta-form textarea {
            resize: vertical;
            min-height: 100px;
        }

        /* 页脚 */
        .footer {
            background: var(--dark);
            color: var(--text-muted-light);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer__brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .footer__brand h3 span {
            color: var(--primary);
        }
        .footer__brand p {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted-light);
            max-width: 320px;
        }
        .footer__col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer__col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer__col li {
            margin-bottom: 8px;
        }
        .footer__col a {
            font-size: 14px;
            color: var(--text-muted-light);
            transition: color var(--transition);
        }
        .footer__col a:hover {
            color: var(--secondary);
        }
        .footer__bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-muted-light);
        }
        .footer__bottom a {
            color: var(--text-muted-light);
            transition: color var(--transition);
        }
        .footer__bottom a:hover {
            color: var(--secondary);
        }

        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-up {
            animation: fadeInUp 0.5s ease both;
        }
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.is-visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .section {
                padding: 48px 0;
            }
            .section__title {
                font-size: 30px;
            }
            .category-hero h1 {
                font-size: 40px;
            }
            .deep-content {
                padding: 32px 28px;
            }
            .cta-section__grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .main-header__wrap {
                min-height: 60px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(0, 0, 0, 0.08);
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
                max-height: calc(100vh - 60px);
                overflow-y: auto;
            }
            .nav-menu.is-open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
                display: block;
            }
            .top-bar__left {
                font-size: 11px;
            }
            .top-bar__right {
                gap: 10px;
            }
            .top-bar__link {
                font-size: 12px;
            }
            .category-hero {
                padding: 40px 0 48px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .category-hero__desc {
                font-size: 15px;
            }
            .section__title {
                font-size: 26px;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .deep-content h2 {
                font-size: 22px;
            }
            .deep-content__img img {
                height: 200px;
            }
            .footer__grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item__number {
                font-size: 32px;
            }
            .cta-form {
                padding: 20px;
            }
            .topic-card__img {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section__head {
                margin-bottom: 28px;
            }
            .section__title {
                font-size: 24px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero__stats {
                gap: 16px;
                flex-direction: column;
            }
            .category-hero__stat-number {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item__number {
                font-size: 26px;
            }
            .btn {
                padding: 12px 20px;
                font-size: 14px;
            }
            .deep-content {
                padding: 20px 16px;
            }
            .deep-content h2 {
                font-size: 20px;
            }
            .deep-content p {
                font-size: 14px;
            }
            .faq-item__question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-item__answer {
                padding: 0 18px 16px;
                font-size: 13px;
            }
            .cta-form {
                padding: 16px;
            }
            .footer {
                padding: 36px 0 20px;
            }
        }