/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1d3a;
            --primary-2: #13294b;
            --primary-3: #1b3260;
            --accent: #e8b531;
            --accent-2: #f4c95d;
            --accent-dark: #c9920e;
            --accent-bg: #fdf6e3;
            --bg-body: #f3f5fa;
            --bg-white: #ffffff;
            --bg-dark: #0b1d3a;
            --bg-gray: #eef1f7;
            --text-main: #182742;
            --text-muted: #5e6e8c;
            --text-light: #93a1bb;
            --border: #e4e9f2;
            --border-dark: #243856;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-full: 999px;
            --shadow-xs: 0 2px 6px rgba(11,29,58,.06);
            --shadow-sm: 0 4px 18px rgba(11,29,58,.08);
            --shadow-md: 0 12px 36px rgba(11,29,58,.12);
            --shadow-lg: 0 24px 60px rgba(11,29,58,.18);
            --transition: all .3s cubic-bezier(.4,0,.2,1);
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: .3px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(232, 181, 49, .5);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(232, 181, 49, .35);
        }

        .btn-primary:hover {
            background: var(--accent-2);
            border-color: var(--accent-2);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 181, 49, .45);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(232, 181, 49, .3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .btn-light:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .6);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            color: #fff;
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 18px 42px;
            font-size: 17px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 20px 0;
            transition: var(--transition);
            background: linear-gradient(180deg, rgba(11, 29, 58, .7) 0%, transparent 100%);
        }

        .site-header.scrolled {
            padding: 12px 0;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            position: fixed;
        }

        .site-header.scrolled .site-brand__text,
        .site-header.scrolled .main-nav__link {
            color: var(--text-main);
        }

        .site-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
        }

        .site-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .site-brand__badge {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(232, 181, 49, .35);
            flex-shrink: 0;
        }

        .site-brand__text {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            line-height: 1.2;
        }

        .site-brand__text span {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .main-nav__link {
            position: relative;
            display: inline-block;
            padding: 10px 18px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .85);
            border-radius: var(--radius-full);
            transition: var(--transition);
        }

        .main-nav__link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .15);
        }

        .main-nav__link.active {
            color: var(--accent);
            font-weight: 600;
        }

        .main-nav__link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .header-cta .btn {
            padding: 10px 24px;
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, .3);
            border-radius: 10px;
            color: #fff;
            font-size: 20px;
            padding: 10px 14px;
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .site-header.scrolled .menu-toggle {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
            padding: 120px 0 80px;
        }

        .hero__bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 1;
        }

        .hero__bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(11, 29, 58, .95) 30%, rgba(11, 29, 58, .6) 60%, transparent 100%);
        }

        .hero__inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            min-height: 500px;
        }

        .hero__content {
            padding-right: 30px;
        }

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: var(--radius-full);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }

        .hero__title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero__title span {
            color: var(--accent);
            position: relative;
        }

        .hero__subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, .75);
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        .hero__visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero__visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-height: 420px;
            object-fit: cover;
            width: 100%;
        }

        .hero__visual::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(232, 181, 49, .2), transparent 70%);
            border-radius: 50%;
            z-index: -1;
        }

        .hero__stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
            border-top: 1px solid rgba(255, 255, 255, .15);
            padding-top: 24px;
        }

        .hero__stat {
            text-align: left;
        }

        .hero__stat-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero__stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
        }

        .section--white {
            background: var(--bg-white);
        }

        .section--gray {
            background: var(--bg-gray);
        }

        .section--dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section__header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section__tag {
            display: inline-block;
            padding: 6px 18px;
            background: var(--accent-bg);
            border-radius: var(--radius-full);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section--dark .section__tag {
            background: rgba(255, 255, 255, .1);
            color: var(--accent);
        }

        .section__title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .section--dark .section__title {
            color: #fff;
        }

        .section__subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .section--dark .section__subtitle {
            color: rgba(255, 255, 255, .7);
        }

        /* ===== 特色卡片 ===== */
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-2));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .4s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-card__icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--accent-bg);
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .feature-card__title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .feature-card__text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 分类卡片 ===== */
        .category-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-dark);
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .5;
            transition: var(--transition);
        }

        .category-card:hover img {
            opacity: .35;
            transform: scale(1.05);
        }

        .category-card__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 29, 58, .9) 100%);
        }

        .category-card__content {
            position: relative;
            z-index: 2;
            padding: 32px;
            width: 100%;
        }

        .category-card__name {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .category-card__desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 16px;
            max-width: 320px;
        }

        .category-card__link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
        }

        .category-card__link:hover {
            gap: 12px;
            color: var(--accent-2);
        }

        /* ===== 最新信息 ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .news-item__header {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .news-item__cat {
            padding: 4px 14px;
            background: var(--accent-bg);
            color: var(--accent-dark);
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 700;
        }

        .news-item__date {
            font-size: 12px;
            color: var(--text-light);
        }

        .news-item__title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            transition: var(--transition);
            margin-bottom: 4px;
        }

        .news-item:hover .news-item__title {
            color: var(--accent-dark);
        }

        .news-item__desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 15px;
            border: 1px dashed var(--border);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 181, 49, .15), transparent 70%);
            border-radius: 50%;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-item__icon {
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .stat-item__value {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat-item__label {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-top: 8px;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-card {
            position: relative;
            text-align: center;
            padding: 36px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .step-card__num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 12px rgba(232, 181, 49, .35);
        }

        .step-card__icon {
            font-size: 32px;
            color: var(--primary-3);
            margin-bottom: 16px;
        }

        .step-card__title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-card__text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 16px;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: var(--accent);
        }

        .faq-item__question {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            text-align: left;
            width: 100%;
        }

        .faq-item__question .fa {
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-item__question .fa {
            transform: rotate(45deg);
        }

        .faq-item__answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }

        .faq-item.active .faq-item__answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        .faq-item__answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: var(--bg-dark);
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: .2;
        }

        .cta-section__inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-section__title {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .cta-section__subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .cta-section__actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #081525;
            padding: 70px 0 30px;
            color: rgba(255, 255, 255, .7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .site-brand__text {
            color: #fff;
        }

        .footer-brand__desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
            margin-top: 20px;
            max-width: 340px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 28px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom__copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom__tech {
            font-size: 13px;
            color: rgba(255, 255, 255, .3);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero {
                min-height: auto;
                padding: 100px 0 60px;
            }

            .hero__title {
                font-size: 38px;
            }

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

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .feature-card {
                padding: 24px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .section__title {
                font-size: 26px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 16px;
                right: 16px;
                background: var(--bg-white);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav__link {
                color: var(--text-main);
                padding: 14px 16px;
                border-radius: var(--radius-sm);
            }

            .main-nav__link:hover {
                background: var(--bg-gray);
            }

            .main-nav__link.active {
                background: var(--accent-bg);
                color: var(--accent-dark);
            }

            .main-nav__link.active::after {
                display: none;
            }

            .menu-toggle {
                display: inline-block;
            }

            .header-cta .btn {
                display: none;
            }

            .hero__content {
                padding-right: 0;
            }

            .hero__title {
                font-size: 30px;
            }

            .hero__subtitle {
                font-size: 15px;
            }

            .hero__stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }

            .hero__stat-value {
                font-size: 22px;
            }

            .category-cards {
                grid-template-columns: 1fr;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

            .steps-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .faq-item__question {
                padding: 18px;
                font-size: 15px;
            }

            .faq-item__answer {
                padding: 0 18px;
            }

            .cta-section__title {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }

            .site-brand__text {
                font-size: 15px;
            }

            .site-brand__badge {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .hero {
                padding: 90px 0 50px;
            }

            .hero__title {
                font-size: 26px;
            }

            .hero__actions .btn {
                width: 100%;
            }

            .btn-lg {
                padding: 16px 28px;
                font-size: 15px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }

            .stat-item__value {
                font-size: 32px;
            }

            .category-card {
                min-height: 260px;
            }

            .category-card__content {
                padding: 24px;
            }

            .news-item {
                padding: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp .8s ease both;
        }

        .delay-1 {
            animation-delay: .1s;
        }

        .delay-2 {
            animation-delay: .2s;
        }

        .delay-3 {
            animation-delay: .3s;
        }

        @media (prefers-reduced-motion: reduce) {
            .fade-in-up {
                animation: none;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d2440;
            --primary-light: #16365e;
            --accent: #eaa23b;
            --accent-dark: #d3851c;
            --bg: #f4f7fc;
            --white: #ffffff;
            --text: #17233d;
            --text-weak: #6b7890;
            --border: #e2e9f2;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 30px rgba(13, 36, 64, .08);
            --shadow-hover: 0 18px 44px rgba(13, 36, 64, .14);
            --space-section: 96px;
            --space-section-sm: 64px;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(234, 162, 59, .5);
            outline-offset: 2px;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: 1224px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section--alt {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--space-section-sm) 0;
            }
        }

        /* ---- Buttons ---- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: .5px;
            background: var(--accent);
            color: var(--primary);
            border: 2px solid var(--accent);
            transition: all .28s ease;
            box-shadow: 0 8px 22px rgba(234, 162, 59, .32);
        }

        .btn:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(211, 133, 28, .35);
        }

        .btn--ghost {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, .55);
            box-shadow: none;
        }

        .btn--ghost:hover {
            border-color: var(--white);
            color: var(--white);
            background: rgba(255, 255, 255, .12);
        }

        .btn--dark {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--white);
            box-shadow: 0 10px 26px rgba(13, 36, 64, .25);
        }

        .btn--dark:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: var(--white);
        }

        /* ---- Badges / Tags ---- */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(234, 162, 59, .14);
            color: var(--accent-dark);
            border: 1px solid rgba(234, 162, 59, .28);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.5;
        }

        .badge--win {
            background: rgba(52, 199, 89, .12);
            color: #1f9d4f;
            border: 1px solid rgba(52, 199, 89, .25);
        }

        .badge--draw {
            background: rgba(22, 54, 94, .08);
            color: var(--primary-light);
            border: 1px solid rgba(22, 54, 94, .18);
        }

        .badge--live {
            background: rgba(255, 59, 48, .12);
            color: #e03a30;
            border: 1px solid rgba(255, 59, 48, .25);
        }

        .badge--finish {
            background: rgba(107, 120, 144, .12);
            color: var(--text-weak);
            border: 1px solid rgba(107, 120, 144, .22);
        }

        /* ---- Header / Nav ---- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(13, 36, 64, .05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 76px;
        }

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

        .site-brand__badge {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(13, 36, 64, .22);
        }

        .site-brand__text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: .3px;
            line-height: 1.2;
        }

        .site-brand__text span {
            color: var(--accent-dark);
            display: block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav__link {
            position: relative;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-weak);
            transition: all .25s ease;
        }

        .main-nav__link:hover {
            color: var(--primary);
            background: rgba(13, 36, 64, .05);
        }

        .main-nav__link.active {
            color: var(--white);
            background: var(--primary);
            box-shadow: 0 6px 16px rgba(13, 36, 64, .18);
        }

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

        .header-search {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(13, 36, 64, .06);
            color: var(--primary);
            font-size: 15px;
            transition: all .25s ease;
        }

        .header-search:hover {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.06);
        }

        .nav-toggle {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--white);
            font-size: 17px;
        }

        .header-searchbar {
            display: none;
            padding: 14px 0 18px;
            border-top: 1px solid var(--border);
            background: var(--white);
        }

        .header-searchbar.is-open {
            display: block;
        }

        .header-searchbar__form {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .header-searchbar__form input {
            flex: 1;
            height: 46px;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 20px;
            font-size: 15px;
            color: var(--text);
            background: var(--bg);
            transition: all .25s ease;
        }

        .header-searchbar__form input:focus {
            border-color: var(--accent);
            background: var(--white);
            outline: none;
        }

        .header-searchbar__form button {
            height: 46px;
            padding: 0 24px;
            border-radius: 999px;
            background: var(--primary);
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 16px 20px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(13, 36, 64, .12);
                transform: translateY(-120%);
                transition: transform .35s ease;
                z-index: 880;
                display: flex;
            }

            .main-nav.is-open {
                transform: translateY(0);
            }

            .main-nav__link {
                padding: 12px 18px;
                text-align: center;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .header-actions {
                margin-left: auto;
            }
        }

        /* ---- Page Banner ---- */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background-size: cover;
            background-position: center;
            color: var(--white);
            isolation: isolate;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(7, 22, 43, .92), rgba(13, 36, 64, .72));
            z-index: -1;
        }

        .page-banner__inner {
            max-width: 860px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
            margin-bottom: 22px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }

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

        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            max-width: 680px;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 76px 0 58px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ---- Section Head ---- */
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 52px;
        }

        .section-head__eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(234, 162, 59, .12);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1.5px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .section-head h2 {
                font-size: 26px;
            }
            .section-head {
                margin-bottom: 36px;
            }
        }

        /* ---- Intro Feature ---- */
        .intro-section {
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }

        .feature-card {
            height: 100%;
            padding: 36px 32px;
            border-radius: var(--radius-lg);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: "";
            position: absolute;
            right: -34px;
            top: -34px;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(234, 162, 59, .10);
            transition: all .4s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(234, 162, 59, .35);
        }

        .feature-card:hover::after {
            transform: scale(1.4);
        }

        .feature-card__icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            box-shadow: 0 10px 24px rgba(13, 36, 64, .18);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ---- News Grid ---- */
        .news-section {
            background: var(--bg);
        }

        .news-card {
            height: 100%;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .35s ease;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(13, 36, 64, .12);
        }

        .news-card__media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .news-card__img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

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

        .news-card__tag {
            position: absolute;
            left: 16px;
            top: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, .95);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(13, 36, 64, .12);
            backdrop-filter: blur(6px);
        }

        .news-card__body {
            padding: 24px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card__meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 12px;
        }

        .news-card__meta i {
            color: var(--accent-dark);
            margin-right: 5px;
        }

        .news-card__title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text);
            margin-bottom: 10px;
        }

        .news-card__title a:hover {
            color: var(--accent-dark);
        }

        .news-card__excerpt {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .news-card__more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
        }

        .news-card__more:hover {
            color: var(--accent-dark);
        }

        .news-card__more i {
            transition: transform .25s ease;
        }

        .news-card__more:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 520px) {
            .news-card__body {
                padding: 18px 16px;
            }
        }

        /* ---- Result Score ---- */
        .results-section {
            background: var(--white);
        }

        .result-hero {
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            padding: 48px;
            position: relative;
            overflow: hidden;
            color: var(--white);
            margin-bottom: 28px;
        }

        .result-hero::before {
            content: "";
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 32px solid rgba(255, 255, 255, .06);
        }

        .result-hero__meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }

        .result-hero__score {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .result-team {
            text-align: center;
            min-width: 160px;
        }

        .result-team__logo {
            width: 64px;
            height: 64px;
            margin: 0 auto 12px;
            border-radius: 18px;
            background: rgba(255, 255, 255, .14);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--accent);
        }

        .result-team__name {
            font-size: 18px;
            font-weight: 700;
        }

        .result-hero__center {
            text-align: center;
        }

        .result-hero__num {
            font-size: 56px;
            font-weight: 800;
            letter-spacing: 4px;
            line-height: 1;
            color: var(--accent);
        }

        .result-hero__status {
            margin-top: 10px;
        }

        .result-card {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px 22px;
            transition: all .3s ease;
            height: 100%;
        }

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

        .result-card__top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .result-card__match {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .result-card__team {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: center;
            flex: 1;
        }

        .result-card__score {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }

        @media (max-width: 640px) {
            .result-hero {
                padding: 32px 20px;
            }
            .result-hero__score {
                gap: 20px;
            }
            .result-team {
                min-width: 120px;
            }
            .result-hero__num {
                font-size: 40px;
            }
        }

        /* ---- Standings ---- */
        .standings-section {
            background: var(--bg);
        }

        .standings-panel {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 20px 24px 24px;
            box-shadow: var(--shadow);
        }

        .stand-head {
            display: grid;
            grid-template-columns: 56px 1fr repeat(4, 72px) 104px;
            gap: 12px;
            padding: 14px 18px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, .75);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .6px;
            margin-bottom: 8px;
        }

        .stand-row {
            display: grid;
            grid-template-columns: 56px 1fr repeat(4, 72px) 104px;
            gap: 12px;
            align-items: center;
            padding: 16px 18px;
            border-radius: var(--radius-sm);
            border-bottom: 1px solid var(--border);
            transition: background .25s ease;
        }

        .stand-row:last-child {
            border-bottom: none;
        }

        .stand-row:hover {
            background: rgba(234, 162, 59, .06);
        }

        .stand-rank {
            font-size: 18px;
            font-weight: 800;
            color: var(--accent-dark);
            text-align: center;
        }

        .stand-team {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--text);
        }

        .stand-team i {
            color: var(--primary-light);
            font-size: 18px;
        }

        .stand-num {
            text-align: center;
            color: var(--text);
            font-weight: 500;
            font-size: 14px;
        }

        .stand-status {
            text-align: center;
        }

        @media (max-width: 900px) {
            .stand-head,
            .stand-row {
                grid-template-columns: 40px 1fr repeat(4, 48px) 88px;
                padding: 12px;
            }
        }

        @media (max-width: 768px) {
            .stand-head {
                display: none;
            }
            .stand-row {
                grid-template-columns: 36px 1fr 60px;
                padding: 14px 12px;
                gap: 8px;
            }
            .stand-num {
                display: none;
            }
            .stand-status {
                text-align: right;
            }
            .stand-row .stand-num--points {
                display: inline-block;
                font-weight: 800;
                color: var(--primary);
            }
        }

        /* ---- Schedule Timeline ---- */
        .schedule-section {
            background: var(--white);
        }

        .timeline {
            position: relative;
            max-width: 760px;
            margin: 0 auto;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 19px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--border));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-left: 58px;
            margin-bottom: 32px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: 11px;
            top: 8px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--accent);
            border: 4px solid var(--white);
            box-shadow: 0 0 0 3px rgba(234, 162, 59, .35);
        }

        .timeline-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 24px;
            transition: all .3s ease;
        }

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

        .timeline-card__date {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
            margin-bottom: 6px;
            letter-spacing: .5px;
        }

        .timeline-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .timeline-card p {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ---- FAQ ---- */
        .faq-section {
            background: var(--bg);
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(234, 162, 59, .4);
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 22px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 14px;
            transition: background .25s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::before {
            content: "\f059";
            font-family: "Font Awesome 6 Free";
            font-weight: 400;
            color: var(--accent-dark);
            font-size: 18px;
            flex-shrink: 0;
        }

        .faq-item summary::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-left: auto;
            color: var(--text-weak);
            transition: transform .3s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item__content {
            padding: 0 26px 22px 58px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ---- CTA ---- */
        .cta-section {
            padding: 0 0 var(--space-section);
            background: var(--bg);
        }

        .cta-box {
            position: relative;
            border-radius: var(--radius-lg);
            background-size: cover;
            background-position: center;
            padding: 64px 56px;
            text-align: center;
            color: var(--white);
            isolation: isolate;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(13, 36, 64, .94), rgba(22, 54, 94, .82));
            z-index: -1;
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .82);
            max-width: 560px;
            margin: 0 auto 30px;
            font-size: 16px;
            line-height: 1.8;
        }

        .cta-box .btn-wrap {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 44px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
        }

        /* ---- Footer ---- */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 44px;
            margin-bottom: 48px;
        }

        .footer-brand__desc {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .62);
            max-width: 360px;
        }

        .site-footer .site-brand__text {
            color: var(--white);
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .68);
            font-size: 14px;
            transition: all .25s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .12);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

        /* ---- Utility ---- */
        .text-center {
            text-align: center;
        }

        .mt-1 { margin-top: 10px; }
        .mt-2 { margin-top: 20px; }
        .mt-3 { margin-top: 32px; }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0b1b3d;
            --primary-light: #16294f;
            --primary-dark: #060f24;
            --accent: #c8a96a;
            --accent-light: #e0c89a;
            --accent-dark: #a8843c;
            --bg: #f4f6fa;
            --bg-alt: #ffffff;
            --bg-dark: #0b1428;
            --text: #1c2733;
            --text-muted: #6b7a90;
            --border: #e2e8f0;
            --white: #ffffff;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(11, 27, 61, 0.06);
            --shadow-md: 0 10px 32px rgba(11, 27, 61, 0.12);
            --shadow-lg: 0 24px 64px rgba(11, 27, 61, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-dark);
        }

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--primary);
        }

        :focus-visible {
            outline: 3px solid rgba(200, 169, 106, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.4;
            border-radius: 999px;
            border: 2px solid transparent;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }

        .btn i {
            font-size: 0.9em;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 27, 61, 0.25);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 169, 106, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(11, 27, 61, 0.18);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
            transform: translateY(-2px);
        }

        .btn-light {
            background: var(--white);
            color: var(--primary);
            border-color: var(--white);
        }

        .btn-light:hover {
            background: var(--bg);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1rem;
        }

        .btn-block {
            width: 100%;
            justify-content: center;
        }

        /* ========== 徽章 / 标签 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(200, 169, 106, 0.14);
            color: var(--accent-dark);
            border: 1px solid rgba(200, 169, 106, 0.4);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .badge-gold {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            padding: 7px 18px;
            font-size: 0.82rem;
        }

        .badge-sm {
            padding: 3px 10px;
            font-size: 0.7rem;
        }

        .badge-light {
            background: rgba(255, 255, 255, 0.16);
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.35);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.8rem;
            border-radius: 999px;
            background: var(--bg);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .tag:hover {
            background: rgba(200, 169, 106, 0.12);
            color: var(--accent-dark);
            border-color: var(--accent);
        }

        /* ========== 站点品牌 Logo ========== */
        .site-brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .site-brand__badge {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: linear-gradient(135deg, #c8a96a 0%, #a8843c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.15rem;
            box-shadow: 0 4px 16px rgba(200, 169, 106, 0.3);
            transition: transform var(--transition);
        }

        .site-brand:hover .site-brand__badge {
            transform: rotate(-6deg) scale(1.04);
        }

        .site-brand__text {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .site-brand__text span {
            display: block;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--accent-dark);
            letter-spacing: 0.22em;
            margin-top: 2px;
        }

        /* ========== 页面 Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: box-shadow var(--transition);
        }

        .site-header.is-scrolled {
            box-shadow: 0 8px 32px rgba(11, 27, 61, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 76px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0 auto;
        }

        .main-nav__link {
            position: relative;
            padding: 8px 18px;
            font-size: 0.93rem;
            font-weight: 500;
            color: var(--text);
            border-radius: 999px;
            transition: all var(--transition);
        }

        .main-nav__link:hover {
            color: var(--primary);
            background: rgba(11, 27, 61, 0.05);
        }

        .main-nav__link.active {
            color: var(--white);
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(11, 27, 61, 0.22);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--white);
            font-size: 1.1rem;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        @media (max-width: 900px) {
            .header-inner {
                gap: 12px;
            }

            .main-nav {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                background: var(--white);
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(11, 27, 61, 0.12);
                transform: translateY(-120%);
                transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                margin: 0;
                border-radius: 0 0 20px 20px;
                z-index: 999;
            }

            .main-nav.nav-open {
                transform: translateY(0);
            }

            .main-nav__link {
                border-radius: 12px;
                padding: 12px 16px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .header-actions .btn {
                display: none;
            }
        }

        @media (max-width: 420px) {
            .site-brand__text {
                font-size: 1rem;
            }

            .site-brand__badge {
                width: 38px;
                height: 38px;
                border-radius: 12px;
                font-size: 1rem;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition);
        }

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

        .breadcrumb__sep {
            opacity: 0.5;
        }

        .breadcrumb__current {
            color: var(--accent-light);
        }

        /* ========== 文章 Hero ========== */
        .article-hero {
            position: relative;
            padding: 100px 0 80px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: var(--white);
            overflow: hidden;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6, 15, 36, 0.92) 0%, rgba(11, 27, 61, 0.72) 55%, rgba(11, 27, 61, 0.45) 100%);
        }

        .article-hero::after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .article-hero__inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }

        .article-hero__inner .badge-gold {
            margin-top: 24px;
        }

        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--white);
            margin: 20px 0 18px;
            letter-spacing: 0.01em;
            line-height: 1.3;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .article-hero__meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.78);
        }

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

        .article-hero__meta i {
            color: var(--accent-light);
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 72px 0 56px;
            }

            .article-hero h1 {
                font-size: 1.8rem;
            }

            .article-hero__meta {
                gap: 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.45rem;
            }
        }

        /* ========== 文章正文布局 ========== */
        .article-body-section {
            padding: 64px 0 40px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border);
        }

        .article-cover {
            margin: -40px -44px 36px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            overflow: hidden;
            max-height: 380px;
            background: var(--bg);
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            max-height: 380px;
            transition: transform 0.6s ease;
        }

        .article-cover:hover img {
            transform: scale(1.03);
        }

        /* ========== 文章内容排版 ========== */
        .article-content {
            font-size: 1.06rem;
            line-height: 1.9;
            color: #33415c;
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content h2 {
            font-size: 1.5rem;
            color: var(--primary);
            margin: 2em 0 0.9em;
            padding-left: 16px;
            border-left: 4px solid var(--accent);
            border-radius: 0 4px 4px 0;
            line-height: 1.35;
        }

        .article-content h3 {
            font-size: 1.18rem;
            color: var(--primary);
            margin: 1.6em 0 0.7em;
            line-height: 1.4;
        }

        .article-content h4 {
            font-size: 1rem;
            color: var(--primary);
            margin: 1.4em 0 0.5em;
        }

        .article-content ul {
            margin: 1em 0 1.6em;
            padding-left: 0;
        }

        .article-content ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 0.7em;
        }

        .article-content ul li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 0.68em;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.18);
        }

        .article-content ol {
            margin: 1em 0 1.6em;
            padding-left: 1.4em;
            counter-reset: article-ol;
            list-style: none;
        }

        .article-content ol li {
            position: relative;
            padding-left: 8px;
            margin-bottom: 0.7em;
            counter-increment: article-ol;
        }

        .article-content ol li::before {
            content: counter(article-ol) ".";
            position: absolute;
            left: -1.4em;
            color: var(--accent-dark);
            font-weight: 700;
        }

        .article-content img {
            border-radius: 14px;
            margin: 1.6em auto;
            box-shadow: var(--shadow-sm);
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: linear-gradient(135deg, rgba(200, 169, 106, 0.08), rgba(200, 169, 106, 0.02));
            padding: 18px 24px;
            margin: 1.8em 0;
            border-radius: 0 14px 14px 0;
            color: var(--text-muted);
            font-style: italic;
        }

        .article-content a {
            color: var(--accent-dark);
            border-bottom: 1px solid rgba(200, 169, 106, 0.4);
        }

        .article-content a:hover {
            border-bottom-color: var(--accent-dark);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6em 0;
            font-size: 0.95rem;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }

        .article-content table th {
            background: rgba(11, 27, 61, 0.04);
            color: var(--primary);
            font-weight: 600;
        }

        .article-content table tr:nth-child(even) {
            background: rgba(11, 27, 61, 0.02);
        }

        .article-content code {
            background: #f0f2f6;
            padding: 2px 7px;
            border-radius: 5px;
            font-size: 0.88em;
            color: var(--accent-dark);
        }

        .article-content pre {
            background: var(--primary-dark);
            color: #e8eaf0;
            padding: 20px 24px;
            border-radius: 14px;
            margin: 1.8em 0;
            overflow-x: auto;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-content hr {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 2em 0;
        }

        /* ========== 文章尾部工具栏 ========== */
        .article-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .article-tags .tag-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== 空状态 ========== */
        .article-empty {
            text-align: center;
            padding: 80px 20px;
        }

        .article-empty__icon {
            width: 96px;
            height: 96px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: rgba(200, 169, 106, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-dark);
            border: 2px solid rgba(200, 169, 106, 0.3);
        }

        .article-empty h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-muted);
            max-width: 420px;
            margin: 0 auto 28px;
        }

        /* ========== 侧栏 ========== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
            position: relative;
        }

        .sidebar-card::before {
            content: "";
            position: absolute;
            top: 20px;
            left: 0;
            width: 3px;
            height: 26px;
            border-radius: 0 4px 4px 0;
            background: var(--accent);
        }

        .sidebar-card:hover {
            box-shadow: var(--shadow-md);
        }

        .sidebar-card__head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .sidebar-card__head i {
            color: var(--accent);
            font-size: 1rem;
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: rgba(200, 169, 106, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .sidebar-card__head h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0;
        }

        .sidebar-meta {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .sidebar-meta li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.9rem;
        }

        .sidebar-meta li:last-child {
            border-bottom: none;
        }

        .sidebar-meta li span {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .sidebar-meta li strong {
            color: var(--primary);
            font-weight: 600;
        }

        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-links li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 12px;
            font-size: 0.92rem;
            color: var(--text);
            transition: all var(--transition);
        }

        .sidebar-links li a i {
            color: var(--accent);
            font-size: 0.8rem;
            transition: transform var(--transition);
        }

        .sidebar-links li a:hover {
            background: rgba(200, 169, 106, 0.08);
            color: var(--accent-dark);
            padding-left: 18px;
        }

        .sidebar-links li a:hover i {
            transform: translateX(4px);
        }

        .sidebar-posts {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-post {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.88rem;
        }

        .sidebar-post:last-child {
            border-bottom: none;
        }

        .sidebar-post__dot {
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 0.6em;
            opacity: 0.7;
        }

        .sidebar-post a {
            color: var(--text);
            line-height: 1.5;
            transition: color var(--transition);
        }

        .sidebar-post a:hover {
            color: var(--accent-dark);
        }

        .sidebar-card--dark {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--white);
        }

        .sidebar-card--dark::before {
            background: var(--accent);
        }

        .sidebar-card--dark h3 {
            color: var(--white);
        }

        .sidebar-card--dark p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            margin-bottom: 18px;
        }

        .sidebar-card--dark .btn {
            margin-top: 8px;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .sidebar-card--dark {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .article-body-section {
                padding: 40px 0 32px;
            }

            .article-main {
                padding: 28px 20px;
            }

            .article-cover {
                margin: -28px -20px 28px;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 区块标题 ========== */
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 36px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-dark);
            letter-spacing: 0.18em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-eyebrow--light {
            color: var(--accent-light);
        }

        .section-head h2 {
            font-size: 2rem;
            margin: 0;
        }

        @media (max-width: 520px) {
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

            .section-head h2 {
                font-size: 1.6rem;
            }
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 60px 0 72px;
            background: var(--bg);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .related-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 169, 106, 0.4);
        }

        .related-card__cover {
            height: 180px;
            overflow: hidden;
            background: var(--bg);
            position: relative;
        }

        .related-card__cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 27, 61, 0.12), transparent 60%);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .related-card:hover .related-card__cover::after {
            opacity: 1;
        }

        .related-card__cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .related-card:hover .related-card__cover img {
            transform: scale(1.05);
        }

        .related-card__body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .related-card__body h3 {
            font-size: 1.05rem;
            line-height: 1.5;
            font-weight: 700;
        }

        .related-card__body h3 a {
            color: var(--primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card__body h3 a:hover {
            color: var(--accent-dark);
        }

        .related-card__body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .related-card__meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border);
            margin-top: auto;
        }

        .related-card__meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card__more {
            color: var(--accent-dark);
            font-weight: 600;
            transition: gap var(--transition);
        }

        .related-card__more i {
            transition: transform var(--transition);
        }

        .related-card:hover .related-card__more i {
            transform: translateX(4px);
        }

        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }

        @media (max-width: 900px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CTA 区 ========== */
        .cta-section {
            padding: 72px 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            color: var(--white);
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6, 15, 36, 0.94) 0%, rgba(11, 27, 61, 0.8) 60%, rgba(11, 27, 61, 0.52) 100%);
            pointer-events: none;
        }

        .cta-box {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 24px;
            padding: 48px 52px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .cta-box__content h2 {
            font-size: 1.8rem;
            color: var(--white);
            margin: 10px 0 12px;
        }

        .cta-box__content p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.95rem;
            max-width: 560px;
            line-height: 1.7;
        }

        .cta-box__actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        @media (max-width: 900px) {
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px 28px;
            }

            .cta-box__actions {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .cta-box__actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-box__actions .btn {
                width: 100%;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 36px;
            position: relative;
            overflow: hidden;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand__desc {
            margin: 20px 0 0;
            font-size: 0.9rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

        .footer-grid .site-brand__text {
            color: var(--white);
        }

        .footer-grid .site-brand__text span {
            color: var(--accent);
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 20px;
            letter-spacing: 0.05em;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.5;
            transition: all var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-links a:hover::before {
            opacity: 1;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom__tech {
            font-family: "JetBrains Mono", "SF Mono", Consolas, monospace;
            letter-spacing: 0.04em;
            color: rgba(255, 255, 255, 0.3);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 420px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== 通用 ========== */
        .section-spacing {
            padding: 72px 0;
        }

        @media (max-width: 768px) {
            .section-spacing {
                padding: 48px 0;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
    :root {
        --color-primary: #0b132b;
        --color-primary-light: #1b263b;
        --color-accent: #e6b800;
        --color-accent-dark: #c9a600;
        --color-bg: #f4f5f7;
        --color-surface: #ffffff;
        --color-text: #1c1e26;
        --color-muted: #6b7280;
        --color-border: #e5e7eb;
        --color-line: #eef0f3;
        --color-success: #10b981;
        --color-danger: #e63946;
        --radius-lg: 20px;
        --radius-md: 14px;
        --radius-sm: 8px;
        --shadow-sm: 0 2px 8px rgba(11, 19, 43, .06);
        --shadow-md: 0 12px 32px rgba(11, 19, 43, .08);
        --shadow-lg: 0 24px 60px rgba(11, 19, 43, .12);
        --container-width: 1200px;
        --header-height: 72px;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --transition: .25s cubic-bezier(.4, 0, .2, 1);
    }

    /* ===== Reset / Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

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

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--color-text);
        background-color: var(--color-bg);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--color-accent);
    }

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

    ul,
    ol {
        list-style: none;
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        border: none;
        background: none;
        outline: none;
    }

    /* ===== 容器 ===== */
    .container {
        max-width: var(--container-width);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
        width: 100%;
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-size: 15px;
        font-weight: 600;
        padding: 12px 28px;
        border-radius: 999px;
        line-height: 1.4;
        cursor: pointer;
        transition: all var(--transition);
        border: 2px solid transparent;
        white-space: nowrap;
    }

    .btn--primary {
        background: var(--color-accent);
        color: var(--color-primary);
        border-color: var(--color-accent);
    }
    .btn--primary:hover {
        background: var(--color-accent-dark);
        border-color: var(--color-accent-dark);
        color: var(--color-primary);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(230, 184, 0, .3);
    }

    .btn--ghost {
        background: transparent;
        color: #fff;
        border-color: rgba(255, 255, 255, .35);
    }
    .btn--ghost:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
        background: rgba(230, 184, 0, .08);
        transform: translateY(-2px);
    }

    .btn--dark {
        background: var(--color-primary);
        color: #fff;
        border-color: var(--color-primary);
    }
    .btn--dark:hover {
        background: var(--color-primary-light);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(11, 19, 43, .18);
    }

    .btn--block {
        width: 100%;
    }

    .btn--sm {
        padding: 8px 18px;
        font-size: 14px;
    }

    /* ===== 徽章 / 标签 ===== */
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(230, 184, 0, .12);
        color: var(--color-accent-dark);
        font-size: 13px;
        font-weight: 600;
        padding: 4px 14px;
        border-radius: 999px;
        letter-spacing: .04em;
    }

    .badge--light {
        background: rgba(255, 255, 255, .12);
        color: #fff;
    }

    /* ===== Header 导航 ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(11, 19, 43, .95);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        height: var(--header-height);
        display: flex;
        align-items: center;
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        width: 100%;
    }

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

    .site-brand__badge {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: var(--color-accent);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--color-primary);
        font-size: 17px;
        box-shadow: 0 4px 12px rgba(230, 184, 0, .3);
    }

    .site-brand__text {
        font-size: 20px;
        font-weight: 800;
        color: #fff;
        letter-spacing: .01em;
        line-height: 1.2;
    }
    .site-brand__text span {
        color: var(--color-accent);
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .main-nav__link {
        position: relative;
        display: inline-block;
        color: rgba(255, 255, 255, .78);
        font-size: 15px;
        font-weight: 500;
        padding: 8px 16px;
        border-radius: 999px;
        transition: all var(--transition);
    }
    .main-nav__link:hover {
        color: #fff;
        background: rgba(255, 255, 255, .06);
    }
    .main-nav__link.active {
        color: var(--color-primary);
        background: var(--color-accent);
        font-weight: 600;
    }
    .main-nav__link.active::after {
        content: "";
        position: absolute;
        bottom: -13px;
        left: 50%;
        transform: translateX(-50%);
        border: 6px solid transparent;
        border-top-color: var(--color-accent);
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .search-toggle {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: rgba(255, 255, 255, .85);
        background: rgba(255, 255, 255, .06);
        cursor: pointer;
        transition: all var(--transition);
    }
    .search-toggle:hover {
        background: rgba(255, 255, 255, .14);
        color: var(--color-accent);
    }

    .nav-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        width: 40px;
        height: 40px;
        border-radius: 8px;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, .06);
        cursor: pointer;
        transition: background var(--transition);
    }
    .nav-toggle:hover {
        background: rgba(255, 255, 255, .12);
    }
    .nav-toggle span {
        display: block;
        width: 18px;
        height: 2px;
        border-radius: 2px;
        background: #fff;
        transition: all var(--transition);
    }

    /* 搜索框 */
    .header-search {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-primary);
        padding: 20px 0;
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        transform: translateY(-110%);
        transition: transform .3s ease;
        z-index: 999;
    }
    .header-search.open {
        transform: translateY(0);
    }
    .search-form {
        display: flex;
        align-items: center;
        gap: 12px;
        background: rgba(255, 255, 255, .1);
        border-radius: 999px;
        padding: 6px 10px 6px 20px;
        border: 1px solid transparent;
        transition: all var(--transition);
    }
    .search-form:focus-within {
        border-color: var(--color-accent);
        background: rgba(255, 255, 255, .14);
    }
    .search-form input {
        flex: 1;
        background: transparent;
        color: #fff;
        font-size: 15px;
        padding: 8px 0;
    }
    .search-form input::placeholder {
        color: rgba(255, 255, 255, .5);
    }
    .search-form button {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: var(--color-accent);
        color: var(--color-primary);
        font-size: 15px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        flex-shrink: 0;
        transition: all var(--transition);
    }
    .search-form button:hover {
        background: var(--color-accent-dark);
    }

    /* ===== Page Hero ===== */
    .page-hero {
        position: relative;
        padding: 120px 0 100px;
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        overflow: hidden;
    }
    .page-hero__overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(11, 19, 43, .94) 20%, rgba(11, 19, 43, .72) 60%, rgba(11, 19, 43, .55) 100%);
        z-index: 1;
    }
    .page-hero__content {
        position: relative;
        z-index: 2;
        max-width: 760px;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: rgba(255, 255, 255, .6);
        margin-bottom: 24px;
    }
    .breadcrumb a {
        color: rgba(255, 255, 255, .7);
    }
    .breadcrumb a:hover {
        color: var(--color-accent);
    }
    .breadcrumb .sep {
        color: rgba(255, 255, 255, .35);
    }

    .page-hero__title {
        font-size: 52px;
        font-weight: 800;
        line-height: 1.15;
        color: #fff;
        margin-bottom: 20px;
        letter-spacing: -.01em;
    }
    .page-hero__title span {
        color: var(--color-accent);
    }
    .page-hero__lead {
        font-size: 17px;
        line-height: 1.8;
        color: rgba(255, 255, 255, .8);
        margin-bottom: 32px;
        max-width: 600px;
    }
    .page-hero__actions {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
    }

    /* ===== 板块通用 ===== */
    .section {
        padding: 90px 0;
    }
    .section--alt {
        background: var(--color-surface);
    }
    .section--dark {
        background: var(--color-primary);
        color: #fff;
    }

    .section-header {
        margin-bottom: 48px;
        text-align: center;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }
    .section-header .badge {
        margin-bottom: 16px;
    }
    .section-header__title {
        font-size: 36px;
        font-weight: 800;
        line-height: 1.25;
        margin-bottom: 14px;
        letter-spacing: -.01em;
    }
    .section-header__desc {
        font-size: 16px;
        color: var(--color-muted);
        line-height: 1.8;
    }

    .section--dark .section-header__title {
        color: #fff;
    }
    .section--dark .section-header__desc {
        color: rgba(255, 255, 255, .65);
    }

    /* ===== 平台简介 + 统计 ===== */
    .platform-intro {
        padding: 90px 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
    }
    .intro-grid {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 60px;
        align-items: center;
    }
    .intro-content__title {
        font-size: 32px;
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 18px;
        color: var(--color-primary);
    }
    .intro-content__text {
        font-size: 15px;
        color: var(--color-muted);
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .intro-content__list {
        margin-top: 20px;
        display: grid;
        gap: 12px;
    }
    .intro-content__list li {
        display: flex;
        gap: 12px;
        font-size: 15px;
        color: var(--color-text);
        line-height: 1.6;
    }
    .intro-content__list i {
        color: var(--color-accent-dark);
        font-size: 15px;
        margin-top: 4px;
    }

    .stats-card {
        background: var(--color-primary);
        border-radius: var(--radius-lg);
        padding: 40px;
        color: #fff;
        position: relative;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }
    .stats-card::after {
        content: "";
        position: absolute;
        right: -40px;
        top: -40px;
        width: 160px;
        height: 160px;
        border-radius: 50%;
        border: 24px solid rgba(230, 184, 0, .08);
    }
    .stats-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px 16px;
        position: relative;
        z-index: 1;
    }
    .stat-item__num {
        font-size: 34px;
        font-weight: 800;
        color: var(--color-accent);
        line-height: 1.2;
        margin-bottom: 4px;
    }
    .stat-item__label {
        font-size: 13px;
        color: rgba(255, 255, 255, .65);
    }
    .stats-card__note {
        margin-top: 28px;
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, .12);
        font-size: 13px;
        color: rgba(255, 255, 255, .6);
        line-height: 1.6;
    }

    /* ===== 功能卡片 ===== */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .feature-card {
        background: var(--color-surface);
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--color-line);
        transition: all var(--transition);
        box-shadow: var(--shadow-sm);
    }
    .feature-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: rgba(230, 184, 0, .25);
    }
    .feature-card__media {
        position: relative;
        aspect-ratio: 16 / 10;
        overflow: hidden;
    }
    .feature-card__media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }
    .feature-card:hover .feature-card__media img {
        transform: scale(1.04);
    }
    .feature-card__media::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(11, 19, 43, .5), transparent 50%);
    }
    .feature-card__tag {
        position: absolute;
        left: 16px;
        top: 16px;
        z-index: 2;
    }
    .feature-card__body {
        padding: 28px;
    }
    .feature-card__title {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 12px;
        line-height: 1.4;
        color: var(--color-primary);
    }
    .feature-card__text {
        font-size: 14px;
        color: var(--color-muted);
        line-height: 1.75;
        margin-bottom: 20px;
    }
    .feature-card__link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--color-accent-dark);
    }
    .feature-card__link i {
        transition: transform var(--transition);
    }
    .feature-card__link:hover i {
        transform: translateX(4px);
    }

    /* ===== 使用流程 ===== */
    .steps-section {
        background: var(--color-primary);
        color: #fff;
    }
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
        counter-reset: step;
    }
    .step-card {
        background: rgba(255, 255, 255, .04);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: var(--radius-lg);
        padding: 32px 26px;
        position: relative;
        transition: all var(--transition);
        counter-increment: step;
    }
    .step-card:hover {
        background: rgba(255, 255, 255, .08);
        border-color: rgba(230, 184, 0, .35);
        transform: translateY(-4px);
    }
    .step-card__num {
        font-size: 42px;
        font-weight: 800;
        color: rgba(230, 184, 0, .5);
        line-height: 1;
        margin-bottom: 18px;
        font-family: "Arial", sans-serif;
    }
    .step-card__title {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .step-card__text {
        font-size: 14px;
        color: rgba(255, 255, 255, .6);
        line-height: 1.7;
    }
    .step-card__icon {
        position: absolute;
        right: 20px;
        top: 20px;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: rgba(230, 184, 0, .15);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: var(--color-accent);
        font-size: 15px;
    }

    /* ===== 热门模块 / 排名榜 ===== */
    .rank-wrap {
        display: grid;
        grid-template-columns: 1.4fr .8fr;
        gap: 44px;
        align-items: center;
    }
    .rank-list {
        display: grid;
        gap: 12px;
    }
    .rank-item {
        display: flex;
        align-items: center;
        gap: 18px;
        background: var(--color-surface);
        border-radius: var(--radius-md);
        padding: 18px 22px;
        border: 1px solid var(--color-line);
        transition: all var(--transition);
    }
    .rank-item:hover {
        transform: translateX(6px);
        border-color: rgba(230, 184, 0, .3);
        box-shadow: var(--shadow-sm);
    }
    .rank-item__idx {
        font-size: 22px;
        font-weight: 800;
        color: var(--color-accent-dark);
        width: 36px;
        text-align: center;
        flex-shrink: 0;
    }
    .rank-item__info {
        flex: 1;
    }
    .rank-item__name {
        font-size: 16px;
        font-weight: 600;
        color: var(--color-text);
    }
    .rank-item__desc {
        font-size: 13px;
        color: var(--color-muted);
        margin-top: 2px;
    }
    .rank-item__bar-wrap {
        flex-shrink: 0;
        width: 160px;
        height: 6px;
        background: var(--color-line);
        border-radius: 99px;
        overflow: hidden;
    }
    .rank-item__bar {
        height: 100%;
        background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
        border-radius: 99px;
    }

    .rank-aside {
        background: var(--color-primary);
        color: #fff;
        border-radius: var(--radius-lg);
        padding: 36px 32px;
        position: relative;
        overflow: hidden;
    }
    .rank-aside::before {
        content: "";
        position: absolute;
        left: -30px;
        bottom: -30px;
        width: 100px;
        height: 100px;
        border-radius: 50%;
        border: 16px solid rgba(230, 184, 0, .1);
    }
    .rank-aside__title {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 12px;
    }
    .rank-aside__text {
        font-size: 14px;
        color: rgba(255, 255, 255, .65);
        line-height: 1.8;
        margin-bottom: 20px;
        position: relative;
        z-index: 1;
    }
    .rank-aside__btn {
        position: relative;
        z-index: 1;
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 860px;
        margin: 0 auto;
        display: grid;
        gap: 14px;
    }
    .faq-item {
        background: var(--color-surface);
        border: 1px solid var(--color-line);
        border-radius: var(--radius-md);
        padding: 24px 28px;
        transition: all var(--transition);
    }
    .faq-item:hover {
        border-color: rgba(230, 184, 0, .25);
        box-shadow: var(--shadow-sm);
    }
    .faq-item__q {
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 17px;
        font-weight: 600;
        color: var(--color-primary);
        cursor: pointer;
    }
    .faq-item__q i {
        color: var(--color-accent-dark);
        font-size: 18px;
    }
    .faq-item__a {
        margin-top: 14px;
        padding-left: 32px;
        font-size: 15px;
        color: var(--color-muted);
        line-height: 1.8;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: var(--color-surface);
        padding-bottom: 90px;
    }
    .cta-box {
        background: var(--color-primary);
        border-radius: var(--radius-lg);
        padding: 60px 50px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        position: relative;
        overflow: hidden;
    }
    .cta-box::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(11, 19, 43, .95), rgba(11, 19, 43, .7));
        z-index: 1;
    }
    .cta-box__content {
        position: relative;
        z-index: 2;
        max-width: 500px;
    }
    .cta-box__title {
        font-size: 32px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
        line-height: 1.3;
    }
    .cta-box__text {
        font-size: 15px;
        color: rgba(255, 255, 255, .7);
        line-height: 1.8;
    }
    .cta-box__btn {
        position: relative;
        z-index: 2;
        flex-shrink: 0;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--color-primary);
        color: rgba(255, 255, 255, .75);
        padding-top: 70px;
        padding-bottom: 30px;
        border-top: 1px solid rgba(255, 255, 255, .06);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 50px;
        padding-bottom: 44px;
        border-bottom: 1px solid rgba(255, 255, 255, .07);
    }
    .footer-brand .site-brand__text {
        color: #fff;
    }
    .footer-brand__desc {
        margin-top: 16px;
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, .55);
        max-width: 340px;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
        letter-spacing: .02em;
    }
    .footer-links {
        display: grid;
        gap: 10px;
    }
    .footer-links a {
        font-size: 14px;
        color: rgba(255, 255, 255, .55);
        transition: all var(--transition);
    }
    .footer-links a:hover {
        color: var(--color-accent);
        padding-left: 4px;
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-top: 24px;
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
        flex-wrap: wrap;
        gap: 12px;
    }
    .footer-bottom__tech {
        letter-spacing: .04em;
    }

    /* ===== 响应式 ===== */
    @media screen and (max-width: 1024px) {
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .rank-wrap {
            grid-template-columns: 1fr;
        }
        .intro-grid {
            gap: 40px;
        }
        .page-hero__title {
            font-size: 44px;
        }
        .footer-grid {
            gap: 40px;
        }
    }

    @media screen and (max-width: 860px) {
        .main-nav {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--color-primary);
            flex-direction: column;
            align-items: stretch;
            padding: 16px;
            gap: 4px;
            transform: translateY(-120%);
            transition: transform .35s cubic-bezier(.4, 0, .2, 1);
            box-shadow: 0 20px 40px rgba(0, 0, 0, .25);
            border-bottom: 2px solid rgba(230, 184, 0, .4);
        }
        .main-nav.open {
            transform: translateY(0);
        }
        .main-nav__link {
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, .85);
            font-size: 16px;
        }
        .main-nav__link.active::after {
            display: none;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .header-actions .btn {
            display: none;
        }
        .page-hero {
            padding: 90px 0 72px;
        }
        .page-hero__title {
            font-size: 36px;
        }
        .section {
            padding: 64px 0;
        }
        .section-header__title {
            font-size: 30px;
        }
        .cta-box {
            padding: 40px 30px;
        }
        .cta-box__title {
            font-size: 26px;
        }
    }

    @media screen and (max-width: 768px) {
        .intro-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .stats-card {
            padding: 30px;
        }
        .rank-item__bar-wrap {
            width: 100px;
        }
    }

    @media screen and (max-width: 600px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .steps-grid {
            grid-template-columns: 1fr;
        }
        .page-hero__title {
            font-size: 30px;
        }
        .page-hero__lead {
            font-size: 15px;
        }
        .section-header__title {
            font-size: 26px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 32px;
        }
        .cta-box {
            flex-direction: column;
            align-items: flex-start;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
        }
        .stat-item__num {
            font-size: 26px;
        }
        .rank-item {
            flex-wrap: wrap;
            gap: 12px;
        }
        .rank-item__bar-wrap {
            width: 100%;
            margin-left: 54px;
        }
        .faq-item {
            padding: 18px 16px;
        }
        .faq-item__q {
            font-size: 15px;
        }
        .faq-item__a {
            font-size: 14px;
            padding-left: 24px;
        }
    }

    @media screen and (max-width: 420px) {
        .header-actions .search-toggle {
            display: none;
        }
        .page-hero__actions .btn {
            width: 100%;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .step-card {
            padding: 24px;
        }
    }

    /* 焦点可访问性 */
    a:focus-visible,
    button:focus-visible,
    .main-nav__link:focus-visible,
    .btn:focus-visible {
        outline: 3px solid rgba(230, 184, 0, .5);
        outline-offset: 3px;
        border-radius: 6px;
    }

    section[id] {
        scroll-margin-top: calc(var(--header-height) + 10px);
    }