/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #4f46e5;
            --primary-dark: #3730a3;
            --primary-light: #6366f1;
            --accent: #06b6d4;
            --accent-light: #22d3ee;
            --dark: #0f172a;
            --dark-2: #1e293b;
            --bg: #f1f5f9;
            --bg-soft: #f8fafc;
            --surface: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 20px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
            --shadow-primary: 0 8px 30px rgba(79, 70, 229, 0.25);
            --space-section: 90px;
            --space-section-sm: 60px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::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;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease, border-color .25s ease;
        }

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        .container {
            width: min(1200px, 100% - 48px);
            margin-inline: auto;
        }

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

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

        .section-head {
            max-width: 680px;
            margin: 0 auto 48px;
            text-align: center;
        }

        .section-head .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 100px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .section-head h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--dark);
            letter-spacing: -0.5px;
        }

        .section-head p {
            margin-top: 14px;
            color: var(--text-weak);
            font-size: 16px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all .3s ease;
            border: 2px solid transparent;
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

        .btn i {
            font-size: 14px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(79, 70, 229, 0.35);
        }

        .btn-glass {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(8px);
        }

        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
        }

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

        .btn-light:hover {
            background: var(--bg-soft);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

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

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(79, 70, 229, 0.04);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(79, 70, 229, 0.4);
            outline-offset: 2px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
            background: rgba(15, 23, 42, 0.65);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(255, 255, 255, 0.94);
            border-radius: var(--radius);
            padding: 10px 14px 10px 22px;
            box-shadow: 0 8px 32px rgba(15, 23, 42, 0.14);
        }

        .brand {
            font-size: 18px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand i {
            color: var(--primary);
            font-size: 22px;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(79, 70, 229, 0.1);
            border-radius: 10px;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 20px;
            border-radius: 50px;
            color: var(--text);
            font-weight: 500;
            font-size: 14px;
            background: transparent;
            border: 1px solid transparent;
            transition: all .25s ease;
        }

        .nav-links a i {
            font-size: 13px;
            color: var(--text-weak);
            transition: color .25s ease;
        }

        .nav-links a:hover {
            background: var(--bg-soft);
            color: var(--primary);
            border-color: var(--border);
        }

        .nav-links a:hover i {
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
        }

        .nav-links a.active i {
            color: #fff;
        }

        .nav-cta {
            padding: 11px 22px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg-soft);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding: 100px 0 90px;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(49, 46, 129, 0.75)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 60%, rgba(79, 70, 229, 0.35), transparent 55%),
                radial-gradient(ellipse at 80% 30%, rgba(6, 182, 212, 0.25), transparent 50%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-content {
            max-width: 850px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 20px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 26px;
            backdrop-filter: blur(6px);
            letter-spacing: 0.5px;
        }

        .hero-badge i {
            color: var(--accent-light);
        }

        .hero h1 {
            font-size: clamp(34px, 6vw, 60px);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            margin-bottom: 20px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
        }

        .hero h1 span {
            background: linear-gradient(120deg, #c7d2fe, #67e8f9);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-sub {
            font-size: clamp(15px, 2vw, 18px);
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 54px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 620px;
            margin: 0 auto;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hstat {
            text-align: center;
        }

        .hstat strong {
            display: block;
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .hstat strong em {
            font-style: normal;
            color: var(--accent-light);
            font-size: 22px;
            margin-left: 2px;
        }

        .hstat span {
            display: block;
            margin-top: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
        }

        /* ========== 核心说明 ========== */
        .feature-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 38px 30px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(79, 70, 229, 0.2);
        }

        .feature-card:hover::after {
            opacity: 1;
        }

        .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            margin: 0 auto 20px;
            color: var(--primary);
            background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
            transition: transform .3s ease;
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08) rotate(-4deg);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ========== 数据统计 ========== */
        .stat-band {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(30, 27, 75, 0.92)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
        }

        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }

        .stat-item .num {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.1;
            color: #fff;
            letter-spacing: -1px;
        }

        .stat-item .num i {
            font-style: normal;
            color: var(--accent-light);
            font-size: 26px;
            margin-left: 2px;
        }

        .stat-item .label {
            margin-top: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
        }

        .stat-item::after {
            content: '';
            display: block;
            width: 36px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
            margin: 16px auto 0;
        }

        /* ========== 分类入口 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            isolation: isolate;
            box-shadow: var(--shadow);
            transition: all .35s ease;
        }

        .category-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, 0) 20%, rgba(15, 23, 42, 0.88) 100%);
            z-index: 1;
            transition: background .3s ease;
        }

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

        .category-card:hover::before {
            background: linear-gradient(180deg, rgba(15, 23, 42, 0.1) 20%, rgba(30, 27, 75, 0.92) 100%);
        }

        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            transition: transform .5s ease;
        }

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

        .category-content {
            position: relative;
            z-index: 2;
            padding: 34px;
            width: 100%;
            color: #fff;
        }

        .category-content .cat-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.22);
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 12px;
            letter-spacing: 1px;
            margin-bottom: 14px;
            backdrop-filter: blur(4px);
        }

        .category-content h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .category-content p {
            font-size: 14px;
            opacity: 0.85;
            max-width: 480px;
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .category-content .link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 4px;
            transition: gap .3s ease;
        }

        .category-content .link:hover {
            gap: 14px;
        }

        /* ========== 最新资讯 ========== */
        .post-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .post-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all .35s ease;
            display: flex;
            flex-direction: column;
        }

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

        .post-thumb {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .post-card:hover .post-thumb img {
            transform: scale(1.06);
        }

        .post-thumb .cat-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(79, 70, 229, 0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 100px;
            z-index: 2;
            backdrop-filter: blur(4px);
        }

        .post-body {
            padding: 24px 26px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .post-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .post-body h3 a {
            color: var(--dark);
            transition: color .25s ease;
        }

        .post-body h3 a:hover {
            color: var(--primary);
        }

        .post-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 16px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .post-meta i {
            color: var(--primary);
        }

        .empty-box {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-weak);
            font-size: 15px;
        }

        .more-link-wrap {
            text-align: center;
            margin-top: 48px;
        }

        /* ========== 流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }

        .step-card {
            position: relative;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 34px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all .35s ease;
            counter-increment: step;
        }

        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.65;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            z-index: 2;
            box-shadow: var(--shadow);
        }

        /* ========== 平台亮点 ========== */
        .highlight-band {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 27, 75, 0.92)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: var(--space-section) 0;
            color: #fff;
        }

        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .highlight-media {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }

        .highlight-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.5));
        }

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

        .highlight-badge {
            position: absolute;
            bottom: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(10px);
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .highlight-badge i {
            color: var(--accent-light);
        }

        .highlight-content .section-head {
            text-align: left;
            margin: 0 0 36px;
        }

        .highlight-content .section-head h2 {
            color: #fff;
        }

        .highlight-content .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .highlight-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .highlight-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            transition: all .3s ease;
        }

        .highlight-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(6px);
        }

        .highlight-item .icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--accent-light);
            background: rgba(6, 182, 212, 0.15);
        }

        .highlight-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 5px;
            color: #fff;
        }

        .highlight-item p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .faq-item.open {
            border-color: rgba(79, 70, 229, 0.3);
            box-shadow: var(--shadow);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: color .25s ease;
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-q .arrow {
            margin-left: auto;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-weak);
            transition: all .3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-q .arrow {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-a {
            max-height: 0;
            padding: 0 24px;
            overflow: hidden;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-weak);
            transition: max-height .35s ease, padding .35s ease;
        }

        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 660px;
            margin: 0 auto;
            padding: 30px 0;
            color: #fff;
        }

        .cta-box h2 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 15px;
            opacity: 0.85;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .cta-box .btn-light {
            padding: 15px 36px;
            font-size: 16px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand i {
            background: rgba(79, 70, 229, 0.3);
            color: #c7d2fe;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            opacity: 0.7;
            max-width: 340px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
        }

        .footer-col ul a i {
            font-size: 12px;
            color: var(--accent-light);
        }

        .footer-col ul a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 70px;
                --space-section-sm: 50px;
            }

            .feature-cards {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-card:last-child {
                grid-column: 1 / -1;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px 20px;
            }

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

            .step-arrow {
                display: none;
            }

            .highlight-grid {
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .container {
                width: min(100% - 32px, 1200px);
            }

            .site-header {
                padding: 10px 0;
            }

            .nav-card {
                padding: 8px 10px 8px 16px;
                gap: 10px;
            }

            .brand {
                font-size: 16px;
            }

            .brand i {
                width: 34px;
                height: 34px;
                font-size: 18px;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: 16px;
                right: 16px;
                background: var(--surface);
                border-radius: var(--radius);
                box-shadow: var(--shadow-lg);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                z-index: 999;
                border: 1px solid var(--border);
            }

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

            .nav-links a {
                padding: 12px 18px;
                justify-content: center;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .hero {
                padding: 70px 0 60px;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 10px;
            }

            .hstat strong {
                font-size: 28px;
            }

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

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

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

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

            .highlight-media {
                order: -1;
            }

            .highlight-media img {
                min-height: 240px;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .faq-q {
                font-size: 15px;
                padding: 18px 20px;
            }

            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-section: 54px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 24px;
            }

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

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

            .stat-item .num {
                font-size: 38px;
            }

            .hero h1 {
                font-size: 30px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .category-content {
                padding: 26px;
            }

            .category-content h3 {
                font-size: 22px;
            }

            .post-body {
                padding: 20px;
            }

            .cta-box h2 {
                font-size: 24px;
            }
        }

        /* 移动端菜单 */
        @media (max-width: 768px) {
            body.menu-open {
                overflow: hidden;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #16213e;
            --primary-light: #1d2a4d;
            --primary-dark: #0d1428;
            --accent: #e8a838;
            --accent-hover: #d4962a;
            --accent-soft: rgba(232, 168, 56, 0.12);
            --bg: #f4f6fa;
            --white: #ffffff;
            --text: #1b2437;
            --text-light: #5a6478;
            --border: #e3e8f0;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(22, 33, 62, 0.08);
            --shadow-lg: 0 16px 44px rgba(22, 33, 62, 0.14);
            --transition: all 0.3s ease;
            --container: 1200px;
        }

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

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

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
            text-decoration: none;
            border: 2px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn i {
            font-size: 15px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #f0b90b, var(--accent));
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(232, 168, 56, 0.32);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(232, 168, 56, 0.46);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(232, 168, 56, 0.3);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.55);
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: #fff;
        }

        .btn-lg {
            padding: 16px 38px;
            font-size: 16px;
            border-radius: 14px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(232, 168, 56, 0.5);
            outline-offset: 2px;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--accent-soft);
            color: #a8781a;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 100px;
            border: 1px solid rgba(232, 168, 56, 0.18);
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }

        /* ===== 头部导航 ===== */
        .site-header {
            background: rgba(244, 246, 250, 0.9);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(22, 33, 62, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(227, 232, 240, 0.85);
            border-radius: 20px;
            padding: 12px 22px;
            box-shadow: 0 6px 24px rgba(22, 33, 62, 0.06);
            margin: 14px 0;
            position: relative;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.2px;
            flex-shrink: 0;
        }

        .brand i {
            color: var(--accent);
            font-size: 22px;
            filter: drop-shadow(0 2px 6px rgba(232, 168, 56, 0.3));
        }

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

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 18px;
            border-radius: 12px;
            color: var(--text-light);
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links a i {
            font-size: 14px;
        }

        .nav-links a:hover {
            background: rgba(22, 33, 62, 0.06);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(22, 33, 62, 0.22);
        }

        .nav-links a.active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        .nav-cta {
            padding: 10px 22px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        /* ===== Hero ===== */
        .cat-hero {
            position: relative;
            padding: 96px 0 88px;
            background: linear-gradient(120deg, rgba(10, 18, 34, 0.96), rgba(22, 33, 62, 0.84)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(232, 168, 56, 0.18), transparent 65%);
            pointer-events: none;
        }

        .cat-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 100px;
            padding: 8px 20px;
            font-size: 13px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 26px;
            color: rgba(255, 255, 255, 0.9);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .cat-hero h1 {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
        }

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

        .cat-hero .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.75;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 图文介绍 ===== */
        .intro-section {
            background: var(--white);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .intro-media {
            position: relative;
            border-radius: 22px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .intro-media:hover img {
            transform: scale(1.03);
        }

        .intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(22, 33, 62, 0.35), transparent 40%);
        }

        .intro-media-badge {
            position: absolute;
            left: 18px;
            bottom: 18px;
            z-index: 1;
            background: rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .intro-media-badge i {
            color: var(--accent);
        }

        .intro-content .section-tag {
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 2px;
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }

        .intro-content h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            color: var(--primary);
        }

        .intro-content p {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .intro-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 12px 16px;
            background: var(--bg);
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .intro-list li i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 2px;
        }

        /* ===== 入口方式 ===== */
        .methods-section {
            background: var(--bg);
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 54px;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

        .method-card {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 168, 56, 0.4);
        }

        .method-img {
            position: relative;
            height: 210px;
            overflow: hidden;
        }

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

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

        .img-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(22, 33, 62, 0.72);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .img-tag i {
            color: var(--accent);
        }

        .method-body {
            padding: 26px 26px 28px;
        }

        .method-body h3 {
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .method-body h3 i {
            color: var(--accent);
            font-size: 18px;
        }

        .method-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .method-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            transition: var(--transition);
        }

        .method-link:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        /* ===== 流程步骤 ===== */
        .flow-section {
            background: var(--white);
            position: relative;
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            text-align: center;
            padding: 34px 24px 30px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
        }

        .step-item:hover {
            background: var(--white);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: rgba(232, 168, 56, 0.3);
        }

        .step-num {
            position: absolute;
            top: 18px;
            right: 18px;
            font-size: 26px;
            font-weight: 900;
            color: rgba(22, 33, 62, 0.1);
            line-height: 1;
        }

        .step-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: 18px;
            color: #fff;
            font-size: 24px;
            box-shadow: 0 8px 22px rgba(22, 33, 62, 0.22);
        }

        .step-item:nth-child(3) .step-icon {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 8px 22px rgba(232, 168, 56, 0.3);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
        }

        .steps-note {
            text-align: center;
            margin-top: 44px;
            font-size: 15px;
            color: var(--text-light);
        }

        .steps-note a {
            color: var(--accent);
            font-weight: 700;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

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

        /* ===== 深色数据安全板块 ===== */
        .safety-section {
            background: linear-gradient(130deg, rgba(10, 18, 34, 0.96), rgba(22, 33, 62, 0.9)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            color: #fff;
        }

        .safety-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 56px;
            align-items: center;
        }

        .stats-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 18px;
            padding: 28px 24px;
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-3px);
        }

        .stat-item .stat-num {
            font-size: 34px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
            font-weight: 500;
        }

        .safety-head {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 14px;
        }

        .safety-tips h3 {
            font-size: 29px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
        }

        .safety-tips > p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .safety-tips ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .safety-tips ul li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 14px 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.88);
        }

        .safety-tips ul li i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

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

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 0;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(232, 168, 56, 0.3);
        }

        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: rgba(232, 168, 56, 0.45);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            transition: var(--transition);
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            display: block;
            animation: fadeSlide 0.3s ease;
        }

        @keyframes fadeSlide {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(120deg, rgba(13, 20, 40, 0.94), rgba(22, 33, 62, 0.86)), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            padding: 100px 0;
            text-align: center;
            color: #fff;
        }

        .cta-card {
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-card .cta-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #f0b90b, var(--accent));
            border-radius: 22px;
            font-size: 30px;
            color: var(--primary);
            box-shadow: 0 12px 30px rgba(232, 168, 56, 0.4);
        }

        .cta-card h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-card p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 30px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 0;
            font-size: 14px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .brand {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
            font-size: 14px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col a {
            color: rgba(255, 255, 255, 0.6);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-col a i {
            font-size: 12px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-col a:hover i {
            transform: translateX(4px);
        }

        .footer-bottom {
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            max-width: 1200px;
        }

        .footer-bottom span {
            color: rgba(255, 255, 255, 0.45);
            font-size: 13px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-toggle {
                display: inline-flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                background: var(--white);
                border-radius: 18px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border);
                padding: 14px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

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

            .nav-links a {
                padding: 14px 18px;
                border-radius: 12px;
            }

            .nav-cta {
                display: none;
            }

            .method-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .safety-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .intro-grid {
                gap: 36px;
            }

            .cat-hero h1 {
                font-size: 38px;
            }
        }

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

            .container {
                padding: 0 18px;
            }

            .nav-card {
                padding: 10px 16px;
                border-radius: 16px;
            }

            .brand {
                font-size: 17px;
            }

            .cat-hero {
                padding: 70px 0 64px;
            }

            .cat-hero h1 {
                font-size: 30px;
            }

            .cat-hero .hero-desc {
                font-size: 16px;
            }

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

            .intro-media img {
                height: 300px;
            }

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

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

            .flow-steps {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }

            .stats-block {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-item {
                padding: 20px 18px;
            }

            .stat-item .stat-num {
                font-size: 26px;
            }

            .safety-tips h3 {
                font-size: 24px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .cta-section {
                padding: 70px 0;
            }

            .cta-card h2 {
                font-size: 26px;
            }

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

            .footer-bottom .container {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }

            .brand span {
                max-width: 170px;
                white-space: normal;
                line-height: 1.3;
            }

            .cat-hero h1 {
                font-size: 25px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .section-head h2 {
                font-size: 23px;
            }

            .method-body {
                padding: 22px 18px;
            }

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

            .safety-tips ul li {
                padding: 12px 14px;
            }

            .faq-question {
                padding: 17px 18px;
                font-size: 15px;
            }

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

            .cta-actions {
                flex-direction: column;
            }

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

            .footer-bottom span {
                font-size: 12px;
            }
        }

/* roulang page: article */
:root {
    --primary: #1e3a8a;
    --primary-light: #3b82f6;
    --primary-dark: #172554;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --white: #ffffff;
    --text: #0f172a;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 36px rgba(15, 23, 42, 0.12);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
    list-style: none;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: var(--accent);
    color: #1a1a1a;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* ======= 导航 ======= */
.site-header {
    background: transparent;
    padding: 20px 0;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.site-header .container {
    max-width: 1260px;
}

.nav-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 14px 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.6);
    position: relative;
}

.nav-card .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 800;
    color: var(--primary);
    margin-right: 8px;
    white-space: nowrap;
}

.nav-card .brand i {
    font-size: 22px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.nav-links a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 18px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    background: transparent;
    white-space: nowrap;
}

.nav-links a i {
    font-size: 13px;
    color: var(--text-light);
}

.nav-links a:hover {
    background: var(--bg-alt);
    color: var(--primary);
}

.nav-links a.active {
    background: var(--primary);
    color: #fff;
}

.nav-links a.active i {
    color: #fff;
}

.nav-cta {
    padding: 10px 22px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-alt);
    color: var(--text);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: var(--primary);
    color: #fff;
}

/* ======= Banner ======= */
.page-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 180px 0 90px;
    color: #fff;
    text-align: center;
}

.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 58, 138, 0.72) 100%);
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

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

.breadcrumb-sep {
    opacity: 0.5;
}

.banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #1a1a1a;
    font-size: 13px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 40px;
    margin-bottom: 18px;
}

.banner-content h1 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.3;
    max-width: 860px;
    margin: 0 auto;
    letter-spacing: 0.5px;
}

.banner-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

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

/* ======= 文章主体 ======= */
.article-main {
    padding: 40px 0 60px;
    background: var(--bg);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 32px;
    align-items: start;
}

.article-content {
    min-width: 0;
}

.article-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px 44px;
}

.article-meta-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.article-meta-top span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light);
}

.article-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(30, 58, 138, 0.08);
    color: var(--primary);
    padding: 5px 14px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 13px;
}

.article-header h2 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 16px;
    color: var(--text);
}

.article-body {
    font-size: 15px;
    line-height: 1.9;
    color: #334155;
}

.article-body p {
    margin: 16px 0;
}

.article-body h2 {
    font-size: 22px;
    margin: 32px 0 14px;
    color: var(--text);
}

.article-body h3 {
    font-size: 18px;
    margin: 24px 0 12px;
    color: var(--text);
}

.article-body ul,
.article-body ol {
    margin: 16px 0;
    padding-left: 22px;
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    margin: 6px 0;
}

.article-body img {
    border-radius: 12px;
    margin: 20px 0;
}

.article-body blockquote {
    border-left: 4px solid var(--accent);
    padding: 12px 20px;
    background: var(--bg-alt);
    border-radius: 0 8px 8px 0;
    margin: 20px 0;
    color: var(--text-light);
    font-style: italic;
}

.article-body a {
    color: var(--primary-light);
    text-decoration: underline;
}

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

.not-found {
    text-align: center;
    padding: 80px 20px;
}

.not-found i {
    font-size: 60px;
    color: var(--border);
    margin-bottom: 20px;
}

.not-found h2 {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text);
}

.not-found p {
    color: var(--text-light);
    margin-bottom: 28px;
}

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

.side-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.side-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-alt);
    display: flex;
    align-items: center;
    gap: 8px;
}

.side-title i {
    color: var(--accent);
}

.side-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border: none;
    text-align: center;
}

.side-cta-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    color: var(--accent);
}

.side-cta h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.side-cta p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 18px;
    line-height: 1.6;
}

.side-cta .btn-primary {
    background: var(--accent);
    color: #1a1a1a;
    border-color: var(--accent);
}

.side-cta .btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
}

.side-categories li {
    margin-bottom: 8px;
}

.side-categories li:last-child {
    margin-bottom: 0;
}

.side-categories a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--bg);
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.side-categories a i {
    color: var(--accent);
    font-size: 14px;
}

.side-categories a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateX(4px);
}

.side-categories a:hover i {
    color: #fff;
}

.side-list li {
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}

.side-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.side-list li:first-child {
    padding-top: 0;
}

.side-list a {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.side-list-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.4;
}

.side-list-title:hover {
    color: var(--primary);
}

.side-list-date {
    font-size: 12px;
    color: var(--text-light);
}

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

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header .section-tag {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 40px;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
}

.section-header p {
    color: var(--text-light);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.post-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.post-card-img {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

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

.post-card-img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.3) 0%, transparent 60%);
}

.post-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-tag {
    display: inline-block;
    background: rgba(30, 58, 138, 0.08);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 40px;
    align-self: flex-start;
    margin-bottom: 12px;
}

.post-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
}

.post-card-body h3 a {
    color: var(--text);
}

.post-card-body h3 a:hover {
    color: var(--primary);
}

.post-card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-more {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.post-more i {
    transition: transform 0.3s ease;
}

.post-more:hover i {
    transform: translateX(4px);
}

/* ======= CTA ======= */
.cta-section {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0f172a 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 640px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 28px;
    line-height: 1.7;
}

.cta-content .btn {
    margin: 0 6px;
}

/* ======= FAQ ======= */
.faq-section {
    padding: 60px 0;
    background: var(--bg);
}

.faq-grid {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 14px;
    overflow: hidden;
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
}

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

.faq-item summary i {
    color: var(--accent);
    transition: transform 0.3s ease;
    font-size: 13px;
}

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

.faq-item summary:hover {
    background: var(--bg-alt);
}

.faq-answer {
    padding: 0 24px 20px 54px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ======= 页脚 ======= */
.site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.site-footer .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
}

.site-footer .brand i {
    font-size: 24px;
    color: var(--accent);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    max-width: 320px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

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

.footer-col ul li a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-col ul li a i {
    font-size: 11px;
    color: var(--accent);
}

.footer-col ul li a:hover {
    color: #fff;
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 18px 0;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

/* ======= 响应式 ======= */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr 300px;
        gap: 24px;
    }

    .article-card {
        padding: 32px;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 14px 0;
    }

    .nav-card {
        flex-wrap: wrap;
        padding: 12px 16px;
        border-radius: 16px;
    }

    .nav-card .brand {
        flex: 1;
        font-size: 15px;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 4px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
        margin-top: 8px;
    }

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

    .nav-links a {
        width: 100%;
        justify-content: flex-start;
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .page-banner {
        padding: 150px 0 60px;
    }

    .banner-content h1 {
        font-size: 26px;
    }

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

    .article-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 16px;
    }

    .side-card {
        flex: 1;
        min-width: 240px;
    }

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

    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

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

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .nav-card .brand {
        font-size: 13px;
    }

    .page-banner {
        padding: 130px 0 50px;
    }

    .banner-content h1 {
        font-size: 22px;
    }

    .banner-meta {
        flex-direction: column;
        gap: 6px;
    }

    .article-card {
        padding: 24px 18px;
        border-radius: 12px;
    }

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

    .footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .cta-content h2 {
        font-size: 24px;
    }

    .cta-content .btn {
        width: 100%;
        margin: 6px 0;
    }

    .section-header h2 {
        font-size: 24px;
    }
}

/* roulang page: category2 */
:root {
  --primary: #6c3ef5;
  --primary-dark: #4a1fd0;
  --primary-light: #8b6bff;
  --secondary: #f0b90b;
  --secondary-light: #fcd34d;
  --accent: #12b76a;
  --bg: #f7f9fc;
  --bg-alt: #f0f2f8;
  --bg-dark: #12132a;
  --bg-dark-2: #1c1d3e;
  --text: #1d2130;
  --text-light: #5b6275;
  --text-muted: #8a90a3;
  --border: #e4e8f0;
  --white: #ffffff;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 50px rgba(76,45,215,0.14);
  --shadow-primary: 0 8px 24px rgba(108,62,245,0.30);
  --transition: all 0.3s ease;
  --container-w: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
}

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  padding: 16px 0;
}

.site-header .container {
  padding: 0 24px;
}

.nav-card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  border: 1px solid rgba(255,255,255,0.6);
  backdrop-filter: blur(12px);
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.brand i {
  font-size: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 15px;
  color: var(--text-light);
  transition: var(--transition);
}

.nav-links a i {
  font-size: 14px;
  opacity: 0.8;
}

.nav-links a:hover {
  background: var(--bg-alt);
  color: var(--primary);
}

.nav-links a.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 16px rgba(108,62,245,0.25);
}

.nav-cta {
  padding: 10px 22px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-alt);
  color: var(--text);
  border: none;
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  transition: var(--transition);
  line-height: 1.4;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(108,62,245,0.4);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary), #d99a06);
  color: #1d2130;
  box-shadow: 0 6px 20px rgba(240,185,11,0.3);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(240,185,11,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid rgba(108,62,245,0.3);
}

.btn-outline:hover {
  background: rgba(108,62,245,0.06);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(255,255,255,0.2);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255,255,255,0.3);
}

/* ===== 横幅 ===== */
.page-hero {
  padding: 36px 0 56px;
  position: relative;
  background: linear-gradient(180deg, rgba(241,243,248,0.6) 0%, rgba(247,249,252,0) 100%);
}

.page-hero-inner {
  background: linear-gradient(135deg, #1c1d3e 0%, #2e1f6d 50%, #6c3ef5 100%);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(28,29,62,0.3);
}

.page-hero-inner::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108,62,245,0.4) 0%, transparent 65%);
  pointer-events: none;
}

.page-hero-inner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(240,185,11,0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.18;
  z-index: 1;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 13px;
  margin-bottom: 18px;
}

.page-hero .breadcrumb a {
  color: rgba(255,255,255,0.7);
}

.page-hero .breadcrumb a:hover {
  color: var(--secondary);
}

.page-hero .breadcrumb i {
  font-size: 11px;
}

.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.page-hero h1 span {
  background: linear-gradient(135deg, var(--secondary), #ffd66b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero p {
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 620px;
}

.hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.hero-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
}

.hero-meta .meta-item i {
  color: var(--secondary);
}

/* ===== 区块标题 ===== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(108,62,245,0.08);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.4;
  letter-spacing: 0.3px;
}

.section-header h2 em {
  font-style: normal;
  color: var(--primary);
}

.section-header p {
  max-width: 600px;
  margin: 12px auto 0;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== 评测列表 ===== */
.review-section {
  padding: 72px 0;
}

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

.review-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.review-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(108,62,245,0.2);
}

.review-card .card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

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

.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card-score {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: linear-gradient(135deg, var(--secondary), #ffbf00);
  color: #1d2130;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 6px 16px rgba(240,185,11,0.4);
}

.review-card .card-body {
  padding: 24px;
}

.review-card .card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
  color: var(--text);
}

.review-card .card-body h3 a:hover {
  color: var(--primary);
}

.review-card .card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-features {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.card-features span {
  font-size: 12px;
  background: var(--bg-alt);
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-light);
  font-weight: 500;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.card-footer a {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-footer a:hover {
  gap: 10px;
}

.card-date {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 评测标准 ===== */
.standard-section {
  background: linear-gradient(135deg, #1c1d3e 0%, #2e1f6d 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.standard-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(108,62,245,0.3) 0%, transparent 70%);
}

.standard-section .section-header h2 {
  color: #fff;
}

.standard-section .section-header .section-tag {
  background: rgba(255,255,255,0.1);
  color: var(--secondary);
}

.standard-section .section-header p {
  color: rgba(255,255,255,0.7);
}

.standard-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.standard-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.standard-item:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(240,185,11,0.3);
  transform: translateY(-4px);
}

.standard-item .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--secondary), #ffbf00);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #1d2130;
  box-shadow: 0 6px 16px rgba(240,185,11,0.25);
}

.standard-item .number {
  font-size: 30px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 8px;
  font-style: normal;
}

.standard-item h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 8px;
}

.standard-item p {
  color: rgba(255,255,255,0.6);
  font-size: 13px;
  line-height: 1.6;
}

/* ===== 热门榜单 ===== */
.rank-section {
  padding: 72px 0;
  background: var(--bg-alt);
}

.rank-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: start;
}

.rank-list {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.rank-list .list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.rank-list .list-head h3 {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.rank-list .list-head h3 i {
  color: var(--secondary);
}

.rank-list table {
  width: 100%;
  border-collapse: collapse;
}

.rank-list table th {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  text-align: left;
  padding: 10px 8px;
  border-bottom: 2px solid var(--border);
}

.rank-list table td {
  padding: 14px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text);
  vertical-align: middle;
}

.rank-list table tr:last-child td {
  border-bottom: none;
}

.rank-list table tr:hover td {
  background: rgba(108,62,245,0.02);
}

.rank-num {
  display: inline-flex;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--bg-alt);
  color: var(--text-light);
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

.rank-num.top {
  background: linear-gradient(135deg, var(--secondary), #ffbf00);
  color: #1d2130;
}

.rank-game {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.rank-game i {
  color: var(--primary);
  font-size: 16px;
}

.rank-score {
  font-weight: 700;
  color: var(--primary);
}

.rank-meta {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

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

.rank-tip {
  background: linear-gradient(135deg, #6c3ef5 0%, #4a1fd0 100%);
  border-radius: var(--radius-lg);
  padding: 28px;
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.rank-tip h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rank-tip h4 i {
  color: var(--secondary);
}

.rank-tip p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
}

.rank-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.rank-tag-list span {
  background: var(--bg-alt);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-light);
  font-weight: 500;
  transition: var(--transition);
  cursor: default;
}

.rank-tag-list span:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== 评测流程 ===== */
.process-section {
  padding: 72px 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.process-step {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
}

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

.process-step .step-num {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(108,62,245,0.3);
}

.process-step .icon {
  font-size: 32px;
  color: var(--primary);
  margin: 12px 0 12px;
}

.process-step h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}

.process-note {
  text-align: center;
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  font-size: 14px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.process-note i {
  color: var(--accent);
  font-size: 20px;
}

/* ===== 精选评测 ===== */
.feature-section {
  padding: 72px 0;
  background: var(--white);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  background: linear-gradient(135deg, #f8f7ff 0%, #f0f2fa 100%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.feature-grid .feature-img {
  height: 420px;
  position: relative;
  overflow: hidden;
}

.feature-grid .feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-grid .feature-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(18,17,42,0.12) 100%);
}

.feature-body {
  padding: 40px 36px;
}

.feature-body .tag {
  display: inline-block;
  background: rgba(240,185,11,0.15);
  color: #a17e00;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.feature-body h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.4;
}

.feature-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 22px;
}

.feature-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.feature-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.feature-points li i {
  color: var(--accent);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 72px 0;
  background: var(--bg);
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item:hover {
  border-color: rgba(108,62,245,0.2);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

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

.faq-item summary .icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(108,62,245,0.08);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}

.faq-item summary .arrow {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.faq-item .answer {
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0 90px;
  background: var(--bg-alt);
}

.cta-box {
  background: linear-gradient(135deg, #1c1d3e 0%, #2e1f6d 50%, #6c3ef5 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 20px 60px rgba(28,29,62,0.3);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(240,185,11,0.2) 0%, transparent 65%);
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -60%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.cta-content p {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  max-width: 560px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: #14152b;
  color: rgba(255,255,255,0.7);
  padding-top: 60px;
  font-size: 14px;
}

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

.footer-brand .brand {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .brand i {
  color: var(--secondary);
  -webkit-text-fill-color: var(--secondary);
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

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

.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  transition: var(--transition);
}

.footer-col ul a i {
  font-size: 12px;
  color: var(--secondary);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--secondary);
  padding-left: 4px;
}

.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .review-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .standard-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .rank-wrapper {
    grid-template-columns: 1fr;
  }

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

  .feature-grid .feature-img {
    height: 300px;
  }

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

  .page-hero h1 {
    font-size: 36px;
  }

  .page-hero-inner {
    padding: 48px 36px;
  }
}

@media (max-width: 768px) {
  .nav-card {
    padding: 10px 14px;
    gap: 12px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: 16px;
    z-index: 100;
    border: 1px solid var(--border);
  }

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

  .nav-links a {
    width: 100%;
    padding: 12px 16px;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .page-hero {
    padding: 16px 0 40px;
  }

  .page-hero-inner {
    padding: 40px 24px;
    border-radius: 16px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .section-header h2 {
    font-size: 26px;
  }

  .review-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .standard-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .feature-body {
    padding: 28px 24px;
  }

  .feature-points {
    grid-template-columns: 1fr;
  }

  .faq-item summary {
    font-size: 14px;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .cta-content h2 {
    font-size: 24px;
  }

  .cta-btns {
    flex-direction: column;
  }

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

  .footer-main {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 520px) {
  .brand span {
    font-size: 14px;
  }

  .brand i {
    font-size: 20px;
  }

  .nav-card {
    padding: 8px 12px;
  }

  .page-hero h1 {
    font-size: 23px;
  }

  .page-hero p {
    font-size: 14px;
  }

  .hero-meta {
    gap: 14px;
  }

  .hero-meta .meta-item {
    font-size: 12px;
  }

  .section-header h2 {
    font-size: 22px;
  }

  .section-header p {
    font-size: 13px;
  }

  .review-card .card-img {
    height: 180px;
  }

  .rank-list {
    padding: 20px;
  }

  .rank-list table th,
  .rank-list table td {
    font-size: 12px;
    padding: 10px 6px;
  }

  .rank-game i {
    display: none;
  }

  .cta-content h2 {
    font-size: 20px;
  }

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

  .btn {
    padding: 11px 20px;
    font-size: 14px;
  }
}

@media (min-width: 1200px) {
  .page-hero-inner {
    padding: 72px 64px;
  }
}