/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1117;
            --primary-light: #161b22;
            --accent: #e94560;
            --accent-hover: #ff6b81;
            --gold: #ffd700;
            --gold-dim: #c8a800;
            --bg-dark: #0a0e1a;
            --bg-card: #111827;
            --bg-section: #f0f2f5;
            --bg-light: #ffffff;
            --text-primary: #ffffff;
            --text-secondary: #9ca3af;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --border-color: #1f2937;
            --border-light: #e5e7eb;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.25);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.4);
            --shadow-glow: 0 0 30px rgba(233,69,96,0.3);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
            --max-width: 1200px;
            --nav-height: 80px;
        }

        /* ===== 基础 Reset ===== */
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--gold); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(13,17,23,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(13,17,23,0.98);
            box-shadow: 0 4px 30px rgba(0,0,0,0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
        }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .nav-left { justify-content: flex-start; }
        .nav-right { justify-content: flex-end; }
        .nav-logo {
            flex-shrink: 0;
            padding: 0 32px;
            text-align: center;
        }
        .nav-logo a {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 2px;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-logo a:hover { opacity: 0.85; }
        .nav-item {
            display: inline-block;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-item:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-item.active {
            color: var(--gold);
            background: rgba(255,215,0,0.1);
        }
        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10,14,26,0.98);
            backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
            padding: 40px 24px;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            pointer-events: all;
        }
        .mobile-menu .nav-item {
            font-size: 22px;
            padding: 14px 28px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            overflow: hidden;
            margin-top: 0;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,14,26,0.85) 0%, rgba(10,14,26,0.6) 50%, rgba(233,69,96,0.25) 100%);
            z-index: 1;
        }
        .hero-glow {
            position: absolute;
            bottom: -20%;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 400px;
            background: radial-gradient(ellipse at center, rgba(233,69,96,0.2) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--gold);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: 50px;
            background: rgba(255,215,0,0.08);
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(42px, 8vw, 80px);
            font-weight: 900;
            letter-spacing: 4px;
            line-height: 1.1;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 40%, var(--gold) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: clamp(16px, 2.2vw, 22px);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.6;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #ff6b81);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 4px 20px rgba(233,69,96,0.4);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 40px rgba(233,69,96,0.5);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: rgba(255,255,255,0.25);
        }
        .btn-outline:hover {
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-3px);
        }
        .btn-play {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(255,255,255,0.2);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .btn-play:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: scale(1.1);
            color: #fff;
        }
        .hero-scroll {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 12px;
            letter-spacing: 2px;
            animation: float 2s ease-in-out infinite;
        }
        .hero-scroll i { font-size: 18px; }
        @keyframes float {
            0%,100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(8px); }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
        }
        .section-dark { background: var(--bg-dark); }
        .section-light { background: var(--bg-section); color: var(--text-dark); }
        .section-card { background: var(--bg-card); }
        .section-gradient {
            background: linear-gradient(180deg, var(--bg-dark) 0%, #0f1525 50%, var(--bg-dark) 100%);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
            padding: 4px 16px;
            border-radius: 50px;
            background: rgba(233,69,96,0.1);
        }
        .section-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-light .section-desc { color: var(--text-muted); }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255,215,0,0.15);
        }
        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--primary-light);
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-image img { transform: scale(1.05); }
        .card-image .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(233,69,96,0.9);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .card-image .card-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(transparent, rgba(0,0,0,0.8));
        }
        .card-body {
            padding: 20px 24px 24px;
        }
        .card-body .card-category {
            font-size: 12px;
            font-weight: 600;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .card-body .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body .card-title a:hover { color: var(--gold); }
        .card-body .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card-body .card-meta i { margin-right: 4px; }

        /* ===== 分类卡片（影视感） ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255,215,0,0.2);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover img { transform: scale(1.06); }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10,14,26,0.9) 0%, rgba(10,14,26,0.3) 60%, transparent 100%);
            z-index: 1;
        }
        .category-card .cat-content {
            position: relative;
            z-index: 2;
            padding: 32px 28px;
            width: 100%;
        }
        .category-card .cat-content h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .category-card .cat-content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .category-card .cat-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(255,215,0,0.15);
            color: var(--gold);
            border: 1px solid rgba(255,215,0,0.25);
            transition: var(--transition);
        }
        .category-card .cat-btn:hover {
            background: var(--gold);
            color: var(--bg-dark);
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .post-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 22px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .post-item:hover {
            border-color: rgba(255,215,0,0.15);
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .post-item .post-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 44px;
            text-align: center;
        }
        .post-item .post-info { flex: 1; }
        .post-item .post-info h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .post-item .post-info h4 a:hover { color: var(--gold); }
        .post-item .post-info .post-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .post-item .post-meta .tag {
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255,215,0,0.1);
            color: var(--gold);
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 40px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(255,215,0,0.2);
            transform: translateY(-4px);
        }
        .stat-item .stat-number {
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 900;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* ===== 横向滚动区 ===== */
        .scroll-track {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 16px 4px 24px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .scroll-track::-webkit-scrollbar { height: 6px; }
        .scroll-track::-webkit-scrollbar-track { background: var(--primary-light); border-radius: 3px; }
        .scroll-track::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
        .scroll-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .scroll-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .scroll-card .sc-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-light);
        }
        .scroll-card .sc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .scroll-card:hover .sc-img img { transform: scale(1.05); }
        .scroll-card .sc-body {
            padding: 16px 18px 20px;
        }
        .scroll-card .sc-body h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .scroll-card .sc-body .sc-meta {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 用户反馈 ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            border-color: rgba(255,215,0,0.15);
            transform: translateY(-4px);
        }
        .testimonial-card .stars {
            color: var(--gold);
            font-size: 18px;
            margin-bottom: 12px;
        }
        .testimonial-card blockquote {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
        }
        .testimonial-card .author .name {
            font-weight: 600;
            font-size: 15px;
        }
        .testimonial-card .author .role {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(255,215,0,0.12); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover { color: var(--gold); }
        .faq-question i {
            font-size: 18px;
            transition: var(--transition);
            color: var(--text-muted);
        }
        .faq-item.open .faq-question i { transform: rotate(45deg); color: var(--gold); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 24px;
            text-align: center;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            z-index: 0;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,14,26,0.9), rgba(233,69,96,0.3));
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-color);
            padding: 60px 24px 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--gold); padding-left: 4px; }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-secondary); }
        .footer-bottom a:hover { color: var(--gold); }
        .footer-social { display: flex; gap: 16px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --nav-height: 64px; }
            .nav-left, .nav-right { display: none; }
            .hamburger { display: flex; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); }
            .nav-logo { padding: 0 16px; }
            .nav-logo a { font-size: 18px; }
            .mobile-menu { display: flex; }
            .hero { min-height: 90vh; padding: 100px 20px 60px; }
            .hero-title { letter-spacing: 2px; }
            .section { padding: 60px 0; }
            .section-header { margin-bottom: 36px; }
            .category-card { min-height: 260px; }
            .post-item { flex-direction: column; align-items: flex-start; gap: 8px; }
            .post-item .post-meta { width: 100%; justify-content: flex-start; }
            .post-item .post-num { display: none; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-item { padding: 24px 16px; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .scroll-card { flex: 0 0 240px; }
            .faq-question { padding: 16px 18px; font-size: 15px; }
            .cta-section { padding: 60px 20px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero-title { font-size: 32px; }
            .hero-sub { font-size: 15px; }
            .btn { padding: 12px 24px; font-size: 14px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 18px 12px; }
            .stat-item .stat-number { font-size: 28px; }
            .category-card { min-height: 200px; }
            .category-card .cat-content { padding: 20px 18px; }
            .category-card .cat-content h3 { font-size: 20px; }
            .section-title { font-size: 24px; }
            .scroll-card { flex: 0 0 200px; }
            .card-body { padding: 16px 18px 20px; }
            .post-item { padding: 14px 16px; }
            .testimonial-card { padding: 24px 20px; }
            .faq-question { padding: 14px 16px; font-size: 14px; }
            .footer-grid { gap: 20px; }
        }
        @media (min-width: 769px) {
            .mobile-menu { display: none !important; }
        }

        /* ===== 辅助 ===== */
        .text-gold { color: var(--gold); }
        .text-accent { color: var(--accent); }
        .text-secondary-custom { color: var(--text-secondary); }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mt-16 { margin-top: 16px; }
        .gap-16 { gap: 16px; }
        .gap-24 { gap: 24px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        @media (max-width: 768px) {
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .grid-3 { grid-template-columns: 1fr 1fr; }
            .grid-4 { grid-template-columns: 1fr 1fr; }
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .empty-state i { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
        .empty-state p { font-size: 16px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e50914;
            --primary-dark: #b20710;
            --primary-light: #ff3b4a;
            --secondary: #0d0d0d;
            --accent: #f5c518;
            --bg-dark: #0a0a0a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #232340;
            --bg-light: #f8f9fa;
            --text-light: #ffffff;
            --text-muted: #b0b0b0;
            --text-dark: #1a1a1a;
            --border-color: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 50px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --space-section: 90px;
            --space-section-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 10, 10, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
            height: 70px;
        }
        .site-header.scrolled {
            background: rgba(10, 10, 10, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 28px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-start;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-item {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-item:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.07);
        }
        .nav-item.active {
            color: var(--text-light);
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(229, 9, 20, 0.35);
        }
        .nav-item.active:hover {
            background: var(--primary-dark);
            color: var(--text-light);
        }
        .nav-logo {
            flex-shrink: 0;
            margin: 0 20px;
            text-align: center;
        }
        .nav-logo a {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-logo a:hover {
            opacity: 0.85;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 6px;
            gap: 5px;
            background: none;
            border: none;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1100;
        }
        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--text-light);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== 移动端菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(10, 10, 10, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1050;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 18px;
            padding: 30px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.35s ease, visibility 0.35s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
            display: flex;
        }
        .mobile-menu .nav-item {
            font-size: 1.3rem;
            padding: 12px 30px;
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            margin-top: 70px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 10, 0.85) 0%, rgba(10, 10, 10, 0.4) 60%, rgba(10, 10, 10, 0.7) 100%);
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            z-index: 1;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 60px 24px 80px;
        }
        .category-hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: 2px;
            line-height: 1.2;
            margin-bottom: 18px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .category-hero-content h1 span {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(229, 9, 20, 0.2);
            border: 1px solid rgba(229, 9, 20, 0.3);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 18px;
            letter-spacing: 1px;
            font-weight: 500;
        }
        .hero-stats-row {
            display: flex;
            justify-content: center;
            gap: 50px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 620px;
            margin-bottom: 46px;
            line-height: 1.7;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-bottom: 24px;
        }
        .text-center .section-divider {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* ===== 攻略卡片 ===== */
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(229, 9, 20, 0.2);
            background: var(--bg-card-hover);
        }
        .guide-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
            border-radius: 0;
        }
        .guide-card .card-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-tag {
            display: inline-block;
            background: rgba(229, 9, 20, 0.15);
            color: var(--primary-light);
            font-size: 0.75rem;
            padding: 3px 14px;
            border-radius: 30px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .guide-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }
        .guide-card .card-meta i {
            margin-right: 5px;
        }

        /* ===== 子分类卡片 ===== */
        .subcat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: default;
        }
        .subcat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(229, 9, 20, 0.25);
        }
        .subcat-card .icon {
            font-size: 2.6rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .subcat-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subcat-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 特色/数据区块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .feature-item .f-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .feature-item .f-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .feature-item .f-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-color);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            padding: 6px 0;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            transition: var(--transition);
            color: var(--primary);
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 10px 0 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(229, 9, 20, 0.08), rgba(245, 197, 24, 0.06));
            border-radius: var(--radius-lg);
            padding: 64px 40px;
            text-align: center;
            border: 1px solid rgba(229, 9, 20, 0.12);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(229, 9, 20, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-muted);
            max-width: 540px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.3px;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-light);
            box-shadow: 0 6px 24px rgba(229, 9, 20, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(229, 9, 20, 0.45);
            color: var(--text-light);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--text-light);
            color: var(--text-light);
        }
        .btn-outline:hover {
            background: var(--text-light);
            color: var(--bg-dark);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--bg-dark);
            box-shadow: 0 6px 24px rgba(245, 197, 24, 0.3);
        }
        .btn-accent:hover {
            background: #e0b014;
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(245, 197, 24, 0.4);
            color: var(--bg-dark);
        }
        .btn-sm {
            padding: 9px 22px;
            font-size: 0.85rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
            margin-top: 40px;
        }
        .footer-grid {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px 40px;
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-social a {
            display: inline-block;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            text-align: center;
            line-height: 40px;
            margin-right: 8px;
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--text-light);
            transform: translateY(-2px);
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            color: var(--text-light);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
            max-width: 1220px;
            margin: 0 auto;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero-content h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-inner {
                justify-content: center;
            }
            .nav-logo {
                margin: 0;
            }
            .nav-logo a {
                font-size: 1.3rem;
            }
            .mobile-menu.open {
                display: flex;
            }

            .section {
                padding: var(--space-section-mobile) 0;
            }
            .section-title {
                font-size: 1.7rem;
            }

            .category-hero {
                min-height: 340px;
            }
            .category-hero-content h1 {
                font-size: 2rem;
            }
            .category-hero-content p {
                font-size: 1rem;
            }
            .hero-stats-row {
                gap: 24px;
            }
            .hero-stat .num {
                font-size: 1.6rem;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-item {
                padding: 22px 14px;
            }
            .feature-item .f-num {
                font-size: 1.5rem;
            }

            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-stats-row {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .btn {
                padding: 12px 26px;
                font-size: 0.9rem;
            }
            .faq-question {
                font-size: 0.95rem;
            }
        }

        /* ===== 动画辅助 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 搜索框 ===== */
        .search-box {
            display: flex;
            max-width: 520px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.15);
        }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 14px 22px;
            color: var(--text-light);
            font-size: 0.95rem;
            outline: none;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: var(--primary);
            border: none;
            color: var(--text-light);
            padding: 0 24px;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-dark);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary-light);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.4;
        }
        .breadcrumb .current {
            color: var(--text-light);
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 28px;
        }
        .tag-cloud .tag {
            padding: 6px 18px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: var(--transition);
            cursor: default;
        }
        .tag-cloud .tag:hover {
            background: rgba(229, 9, 20, 0.12);
            border-color: rgba(229, 9, 20, 0.2);
            color: var(--primary-light);
        }

        /* ===== 推荐列表 ===== */
        .featured-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .featured-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 16px 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .featured-list-item:hover {
            border-color: rgba(229, 9, 20, 0.2);
            transform: translateX(4px);
            background: var(--bg-card-hover);
        }
        .featured-list-item .rank {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 40px;
            text-align: center;
        }
        .featured-list-item .info {
            flex: 1;
        }
        .featured-list-item .info h5 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .featured-list-item .info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .featured-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 额外卡片通用 ===== */
        .badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 30px;
            letter-spacing: 0.5px;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--bg-dark);
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary-light);
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-8 {
            margin-bottom: 8px;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #457b9d;
            --accent: #f4a261;
            --accent-light: #fddba6;
            --dark: #1d3557;
            --dark-bg: #0f1a2e;
            --light: #f8f9fa;
            --white: #ffffff;
            --gray-100: #f1f3f5;
            --gray-200: #e9ecef;
            --gray-300: #dee2e6;
            --gray-400: #ced4da;
            --gray-500: #adb5bd;
            --gray-600: #6c757d;
            --gray-700: #495057;
            --text: #212529;
            --text-light: #6c757d;
            --border: #dee2e6;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --hero-overlay: linear-gradient(135deg, rgba(15,26,46,0.85) 0%, rgba(29,53,87,0.65) 50%, rgba(15,26,46,0.85) 100%);
            --card-hover: translateY(-6px);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--dark); margin-top: 0; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .text-center { text-align: center; }
        .section-title { font-size: 2rem; margin-bottom: 0.5rem; position: relative; display: inline-block; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-light); margin-bottom: 2.5rem; max-width: 640px; margin-left: auto; margin-right: auto; }
        .section-divider { width: 60px; height: 4px; background: var(--primary); border-radius: 4px; margin: 0.5rem auto 1.5rem; }
        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 48px 0; } .section-title { font-size: 1.6rem; } .container { padding: 0 16px; } }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15,26,46,0.95);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(15,26,46,0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            position: relative;
        }
        .nav-left, .nav-right { display: flex; align-items: center; gap: 8px; }
        .nav-item {
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            letter-spacing: 0.3px;
            position: relative;
        }
        .nav-item:hover { color: var(--white); background: rgba(255,255,255,0.08); }
        .nav-item.active { color: var(--white); background: rgba(230,57,70,0.25); }
        .nav-item.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 4px; }
        .nav-logo { position: absolute; left: 50%; transform: translateX(-50%); }
        .nav-logo a {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: 1px;
            background: linear-gradient(135deg, #f4a261, #e63946);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .nav-logo a:hover { opacity: 0.85; }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
        .hamburger span { display: block; width: 26px; height: 2.5px; background: var(--white); border-radius: 4px; transition: var(--transition); }
        .mobile-menu { display: none; }
        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .hamburger { display: flex; }
            .nav-logo { position: relative; left: auto; transform: none; }
            .nav-inner { justify-content: space-between; }
            .mobile-menu {
                display: block;
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(15,26,46,0.98);
                backdrop-filter: blur(18px);
                padding: 16px 24px 24px;
                transform: translateY(-100%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                z-index: 999;
            }
            .mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .mobile-menu .nav-item { display: block; padding: 12px 16px; font-size: 1rem; border-radius: var(--radius-sm); }
            .mobile-menu .nav-item + .nav-item { margin-top: 4px; }
        }

        /* ===== Hero 文章封面 ===== */
        .article-hero {
            position: relative;
            min-height: 60vh;
            display: flex;
            align-items: flex-end;
            padding: 120px 0 80px;
            background: var(--dark-bg);
            overflow: hidden;
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            transform: scale(1.05);
            transition: transform 8s ease;
        }
        .article-hero:hover .article-hero-bg { transform: scale(1); }
        .article-hero-overlay {
            position: absolute;
            inset: 0;
            background: var(--hero-overlay);
        }
        .article-hero .container { position: relative; z-index: 2; width: 100%; }
        .article-hero-content { max-width: 820px; }
        .article-hero .article-category {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
            text-transform: uppercase;
        }
        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .article-hero .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            align-items: center;
        }
        .article-hero .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-hero .article-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            margin-top: 16px;
            max-width: 680px;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .article-hero { min-height: 50vh; padding: 100px 0 48px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .article-desc { font-size: 0.95rem; }
            .article-hero .article-meta { gap: 12px; font-size: 0.8rem; }
        }

        /* ===== 文章正文 ===== */
        .article-main { padding: 48px 0 64px; background: var(--white); }
        .article-main .grid-x { align-items: flex-start; }
        .article-body { padding-right: 40px; }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body .content p { margin-bottom: 1.5rem; }
        .article-body .content h2, .article-body .content h3 { margin-top: 2rem; margin-bottom: 1rem; color: var(--dark); }
        .article-body .content ul, .article-body .content ol { margin-bottom: 1.5rem; padding-left: 1.5rem; list-style: disc; }
        .article-body .content ol { list-style: decimal; }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: var(--gray-100);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--gray-700);
            font-style: italic;
        }
        .article-body .content img { margin: 1.5rem 0; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
        .article-body .content a { color: var(--secondary); font-weight: 500; border-bottom: 1px solid transparent; }
        .article-body .content a:hover { border-bottom-color: var(--secondary); }
        @media (max-width: 768px) {
            .article-body { padding-right: 0; }
            .article-body .content { font-size: 0.95rem; }
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar .sidebar-card {
            background: var(--gray-100);
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 24px;
        }
        .article-sidebar .sidebar-card h4 { font-size: 1.1rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .article-sidebar .sidebar-card h4 i { color: var(--primary); }
        .article-sidebar .sidebar-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--gray-200);
        }
        .article-sidebar .sidebar-item:last-child { border-bottom: none; }
        .article-sidebar .sidebar-item img { width: 70px; height: 70px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
        .article-sidebar .sidebar-item a { font-size: 0.9rem; font-weight: 500; color: var(--dark); display: block; line-height: 1.4; }
        .article-sidebar .sidebar-item a:hover { color: var(--primary); }
        .article-sidebar .sidebar-item span { font-size: 0.75rem; color: var(--text-light); display: block; margin-top: 4px; }
        .sidebar-tag { display: inline-block; background: var(--white); color: var(--secondary); font-size: 0.75rem; padding: 4px 12px; border-radius: 20px; margin: 3px; border: 1px solid var(--gray-300); transition: var(--transition); }
        .sidebar-tag:hover { background: var(--secondary); color: var(--white); border-color: var(--secondary); }
        @media (max-width: 768px) {
            .article-sidebar { margin-top: 32px; }
        }

        /* ===== 文章元信息 & 分享 ===== */
        .article-meta-footer {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--gray-200);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .article-tags .tag {
            display: inline-block;
            background: var(--gray-100);
            color: var(--gray-700);
            font-size: 0.8rem;
            padding: 4px 14px;
            border-radius: 20px;
            border: 1px solid var(--gray-200);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
        .share-buttons { display: flex; gap: 8px; }
        .share-btn {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--gray-100);
            color: var(--gray-700);
            font-size: 0.95rem;
            transition: var(--transition);
            border: 1px solid var(--gray-200);
        }
        .share-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 上下篇导航 ===== */
        .post-navigation {
            padding: 32px 0;
            border-top: 1px solid var(--gray-200);
            margin-top: 32px;
        }
        .post-nav-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
        .post-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--gray-100);
            border-radius: var(--radius);
            transition: var(--transition);
            flex: 1;
            min-width: 200px;
            border: 1px solid var(--gray-200);
        }
        .post-nav-link:hover { background: var(--white); box-shadow: var(--shadow-sm); transform: var(--card-hover); border-color: var(--primary); }
        .post-nav-link .nav-direction { font-size: 0.75rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; }
        .post-nav-link .nav-title { font-size: 0.9rem; font-weight: 600; color: var(--dark); line-height: 1.3; }
        .post-nav-link.next { text-align: right; flex-direction: row-reverse; }
        .post-nav-link i { color: var(--primary); font-size: 1.2rem; }

        /* ===== 相关文章 ===== */
        .related-section { background: var(--light); padding: 64px 0; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 32px; }
        .related-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--gray-200);
        }
        .related-card:hover { box-shadow: var(--shadow); transform: var(--card-hover); }
        .related-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 18px 20px 20px; }
        .related-card .card-body .card-cat {
            font-size: 0.7rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card .card-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
        .related-card .card-body h3 a { color: var(--dark); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-light); line-height: 1.5; }
        .related-card .card-body .card-date { font-size: 0.75rem; color: var(--gray-500); margin-top: 10px; display: flex; align-items: center; gap: 4px; }
        @media (max-width: 900px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .related-grid { grid-template-columns: 1fr; } }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark-bg);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: var(--white); font-size: 2rem; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.75); font-size: 1.05rem; max-width: 560px; margin: 0 auto 24px; }
        .cta-btn {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            font-size: 1rem;
            font-weight: 600;
            padding: 14px 40px;
            border-radius: 50px;
            transition: var(--transition);
            border: 2px solid var(--primary);
            letter-spacing: 0.5px;
        }
        .cta-btn:hover { background: transparent; color: var(--white); border-color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,70,0.3); }
        .cta-btn i { margin-right: 8px; }
        @media (max-width: 768px) { .cta-section h2 { font-size: 1.5rem; } .cta-btn { padding: 12px 28px; font-size: 0.9rem; } }

        /* ===== 内容未找到 ===== */
        .not-found-block {
            padding: 80px 0;
            text-align: center;
        }
        .not-found-block h2 { font-size: 2.4rem; color: var(--dark); margin-bottom: 16px; }
        .not-found-block p { font-size: 1.05rem; color: var(--text-light); margin-bottom: 24px; }
        .not-found-block .back-home {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: var(--white);
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-block .back-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f4a261, #e63946);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-social a {
            display: inline-flex;
            width: 38px;
            height: 38px;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: var(--transition);
            margin-right: 8px;
        }
        .footer-social a:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
        .footer-col h5 { color: var(--white); font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.5px; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.85rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
        .footer-bottom {
            max-width: 1200px;
            margin: 32px auto 0;
            padding: 20px 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--white); }
        @media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== 工具类 ===== */
        .mt-1 { margin-top: 16px; }
        .mt-2 { margin-top: 32px; }
        .mt-3 { margin-top: 48px; }
        .mb-1 { margin-bottom: 16px; }
        .mb-2 { margin-bottom: 32px; }
        .gap-1 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .text-accent { color: var(--primary); }
        .bg-light { background: var(--light); }
        .bg-dark { background: var(--dark-bg); }

/* roulang page: category2 */
:root {
            --primary: #6c3ef5;
            --primary-light: #8b6bf7;
            --primary-dark: #4a1fbf;
            --secondary: #f53e8c;
            --accent: #ffb347;
            --bg: #f8f7fc;
            --bg-alt: #ffffff;
            --bg-dark: #1a0f2e;
            --text: #1f1a2e;
            --text-light: #6b6578;
            --text-white: #ffffff;
            --border: #e4e0ee;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(108, 62, 245, 0.08);
            --shadow-hover: 0 12px 40px rgba(108, 62, 245, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul {
            list-style: none;
        }

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

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 32px rgba(108, 62, 245, 0.06);
        }
        .nav-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-item {
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-item:hover {
            background: rgba(108, 62, 245, 0.06);
            color: var(--primary);
        }
        .nav-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(108, 62, 245, 0.25);
        }
        .nav-item.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            text-align: center;
        }
        .nav-logo a {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-logo a:hover {
            opacity: 0.85;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
            background: none;
            border: none;
        }
        .hamburger:hover {
            background: rgba(108, 62, 245, 0.06);
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 24px;
            z-index: 999;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav .nav-item {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
        }
        .mobile-nav .nav-item.active {
            background: var(--primary);
            color: #fff;
        }

        /* Hero Banner for category page */
        .category-hero {
            margin-top: var(--nav-height);
            padding: 80px 0 72px;
            background: linear-gradient(135deg, #1a0f2e 0%, #2a1a4e 50%, #1a0f2e 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(108, 62, 245, 0.3) 0%, transparent 70%);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 20px;
            border-radius: 100px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
        }
        .hero-badge i {
            color: var(--accent);
        }

        /* Section */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            text-align: center;
        }
        .section-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-title-left {
            text-align: left;
        }
        .section-sub-left {
            margin-left: 0;
        }

        /* Cards grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        /* Review Card */
        .review-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .review-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }
        .review-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .review-card .card-body {
            padding: 24px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .review-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }
        .review-card .tag {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(108, 62, 245, 0.08);
            color: var(--primary);
        }
        .review-card .tag.hot {
            background: rgba(245, 62, 140, 0.1);
            color: var(--secondary);
        }
        .review-card .tag.accent {
            background: rgba(255, 179, 71, 0.15);
            color: #b87800;
        }
        .review-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .review-card h3 a {
            color: var(--text);
        }
        .review-card h3 a:hover {
            color: var(--primary);
        }
        .review-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .review-card .card-meta i {
            margin-right: 4px;
        }
        .review-card .card-desc {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .review-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .review-card .rating {
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent);
        }
        .review-card .rating i {
            color: #ffb347;
        }
        .review-card .read-more {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
        }
        .review-card .read-more i {
            transition: var(--transition);
            margin-left: 4px;
        }
        .review-card .read-more:hover i {
            transform: translateX(4px);
        }

        /* Featured / Large review */
        .featured-review {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            margin-bottom: 40px;
        }
        .featured-review .feat-img {
            width: 100%;
            height: 100%;
            min-height: 360px;
            object-fit: cover;
            border-radius: 0;
        }
        .featured-review .feat-body {
            padding: 40px 40px 40px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-review .feat-body .tag {
            display: inline-block;
            padding: 4px 18px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            width: fit-content;
            margin-bottom: 16px;
        }
        .featured-review .feat-body h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .featured-review .feat-body p {
            color: var(--text-light);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .featured-review .feat-meta {
            display: flex;
            gap: 24px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .featured-review .feat-meta i {
            margin-right: 6px;
            color: var(--primary-light);
        }

        /* Stats / Data row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }
        .stat-item .num {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 8px;
        }

        /* Review process / Methodology */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }
        .step-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            font-family: var(--font);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-light);
            line-height: 1.8;
            font-size: 0.95rem;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a0f2e 0%, #2a1a4e 50%, #1a0f2e 100%);
            padding: 80px 0;
            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;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 62, 245, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(108, 62, 245, 0.35);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 24px;
            font-size: 0.9rem;
        }

        /* Footer */
        .site-footer {
            background: #0f0a1a;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }
        .footer-grid {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            font-size: 1.1rem;
            margin-right: 8px;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 40px auto 0;
            padding: 24px 24px 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
            padding: 20px 0 0;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--text);
            font-weight: 500;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-light);
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-review {
                grid-template-columns: 1fr;
            }
            .featured-review .feat-body {
                padding: 24px 28px 32px;
            }
            .featured-review .feat-img {
                min-height: 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-logo {
                position: static;
                transform: none;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .category-hero {
                padding: 60px 0 48px;
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid-3,
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .featured-review .feat-body h2 {
                font-size: 1.5rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 2rem;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .hero-badge {
                font-size: 0.8rem;
                padding: 4px 16px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 1.8rem;
            }
            .featured-review .feat-body {
                padding: 20px 20px 28px;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }
        }

        /* Extra utilities */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .tag-sm {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(108, 62, 245, 0.08);
            color: var(--primary);
        }
        .tag-sm.secondary {
            background: rgba(245, 62, 140, 0.1);
            color: var(--secondary);
        }
        .tag-sm.accent {
            background: rgba(255, 179, 71, 0.15);
            color: #b87800;
        }