/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a7fea;
            --primary-dark: #0f5bb5;
            --primary-light: #e8f2fe;
            --secondary: #f5a623;
            --secondary-dark: #d98e1a;
            --accent: #ff6b35;
            --success: #2ecc71;
            --bg-body: #ffffff;
            --bg-light: #f7f9fc;
            --bg-dark: #1a2332;
            --text-primary: #1a2332;
            --text-secondary: #5a6a7e;
            --text-light: #8a9aae;
            --text-white: #ffffff;
            --border-color: #e5e9f0;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26,35,50,0.06);
            --shadow-md: 0 6px 24px rgba(26,35,50,0.08);
            --shadow-lg: 0 16px 48px rgba(26,35,50,0.12);
            --shadow-xl: 0 24px 64px rgba(26,35,50,0.16);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --max-width: 1200px;
            --header-height: 72px;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-body);
            line-height: 1.6;
            -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; }
        button,input,textarea,select { font-family: inherit; font-size: inherit; }
        ul,ol { list-style: none; }
        h1,h2,h3,h4,h5,h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .clearfix::after { content: ''; display: table; clear: both; }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media screen and (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== 标题与分隔 ===== */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-title .badge-title {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        @media screen and (max-width: 768px) {
            .section-title h2 { font-size: 1.6rem; }
            .section-title p { font-size: 1rem; }
        }

        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 16px auto 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.2;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26,127,234,0.3);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-dark);
            border-color: var(--secondary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245,166,35,0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.15);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-light {
            background: var(--text-white);
            color: var(--primary);
            border-color: var(--text-white);
        }
        .btn-light:hover {
            background: var(--bg-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        }
        .btn-lg { padding: 16px 38px; font-size: 1.05rem; }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }
        .btn i { font-size: 1.1em; }
        .btn:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }

        /* ===== 标签 / 徽章 ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
        }
        .tag-hot { background: #fef0ef; color: #e74c3c; }
        .tag-new { background: #e8f8f0; color: #27ae60; }
        .tag-top { background: #fef9e7; color: #f39c12; }
        .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.8rem;
        }
        .logo span { color: var(--primary); }
        .logo:hover { color: var(--text-primary); }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26,127,234,0.1);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 8px;
            font-size: 0.9rem;
            color: var(--text-primary);
            outline: none;
            min-width: 160px;
        }
        .header-search input::placeholder { color: var(--text-light); }
        .header-search button {
            border: none;
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            padding: 4px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .header-search button:hover { color: var(--primary); }

        .header-cta {
            background: var(--primary);
            color: var(--text-white);
            border: none;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(26,127,234,0.3);
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-6px); }

        /* 移动导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--bg-body);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            z-index: 999;
            padding: 16px 24px;
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-nav.open { display: block; }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            border-bottom: 1px solid var(--border-light);
        }
        .mobile-nav a:last-child { border-bottom: none; }
        .mobile-nav a:hover { background: var(--primary-light); color: var(--primary); }
        .mobile-nav a.active { color: var(--primary); font-weight: 600; background: var(--primary-light); }
        .mobile-nav .mobile-cta {
            margin-top: 12px;
            width: 100%;
            justify-content: center;
        }

        @media screen and (max-width: 1024px) {
            .header-nav { display: none; }
            .header-right .header-search { display: none; }
            .header-right .header-cta { display: none; }
            .hamburger { display: flex; }
            .mobile-nav { display: block; }
            .header-right { gap: 8px; }
        }
        @media screen and (min-width: 1025px) {
            .mobile-nav { display: none !important; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            margin-top: var(--header-height);
            background: linear-gradient(135deg, rgba(26,35,50,0.75) 0%, rgba(26,35,50,0.45) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(6px);
            padding: 6px 22px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-white);
            margin-bottom: 20px;
            border: 1px solid rgba(255,255,255,0.2);
            font-weight: 500;
        }
        .hero h1 {
            font-size: 3.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-search-box {
            display: flex;
            align-items: center;
            background: var(--text-white);
            border-radius: 50px;
            padding: 4px 4px 4px 20px;
            max-width: 480px;
            width: 100%;
            box-shadow: var(--shadow-lg);
        }
        .hero-search-box input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 12px 8px;
            font-size: 1rem;
            color: var(--text-primary);
            outline: none;
            min-width: 0;
        }
        .hero-search-box input::placeholder { color: var(--text-light); }
        .hero-search-box button {
            background: var(--primary);
            color: var(--text-white);
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .hero-search-box button:hover {
            background: var(--primary-dark);
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        @media screen and (max-width: 768px) {
            .hero { min-height: 70vh; padding: 100px 16px 60px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .hero-search-box { flex-direction: column; background: transparent; gap: 8px; padding: 0; }
            .hero-search-box input { background: var(--text-white); border-radius: 50px; padding: 12px 20px; width: 100%; }
            .hero-search-box button { width: 100%; justify-content: center; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stats .stat-item .num { font-size: 1.6rem; }
        }

        /* ===== 特色板块 ===== */
        .features-section {
            padding: 80px 0;
            background: var(--bg-body);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .feature-card .icon-box {
            width: 68px;
            height: 68px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--text-white);
        }
        .feature-card .icon-box.blue { background: var(--primary); }
        .feature-card .icon-box.orange { background: var(--secondary); }
        .feature-card .icon-box.green { background: var(--success); }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        @media screen and (max-width: 768px) {
            .features-section { padding: 60px 0; }
            .features-grid { grid-template-columns: 1fr; gap: 20px; }
        }

        /* ===== 热门目的地 ===== */
        .destinations-section {
            padding: 80px 0;
            background: var(--bg-light);
        }
        .dest-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 24px;
        }
        .dest-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-body);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
        }
        .dest-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .dest-card .img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .dest-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .dest-card:hover .img-wrap img { transform: scale(1.08); }
        .dest-card .img-wrap .overlay-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0,0,0,0.55);
            backdrop-filter: blur(4px);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 500;
        }
        .dest-card .card-body {
            padding: 20px;
        }
        .dest-card .card-body h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .dest-card .card-body .meta {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }
        .dest-card .card-body .meta i { color: var(--secondary); }
        .dest-card .card-body .desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media screen and (max-width: 1024px) {
            .dest-grid { grid-template-columns: repeat(2,1fr); }
        }
        @media screen and (max-width: 520px) {
            .dest-grid { grid-template-columns: 1fr; }
            .destinations-section { padding: 60px 0; }
        }

        /* ===== 最新资讯（CMS列表） ===== */
        .news-section {
            padding: 80px 0;
            background: var(--bg-body);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2,1fr);
            gap: 28px;
        }
        .news-card {
            display: flex;
            gap: 20px;
            background: var(--bg-body);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
            transform: translateY(-3px);
        }
        .news-card .thumb {
            width: 140px;
            min-height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .news-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card .info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-card .info .cat-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 8px;
            align-self: flex-start;
        }
        .news-card .info h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .info h4 a {
            color: var(--text-primary);
        }
        .news-card .info h4 a:hover { color: var(--primary); }
        .news-card .info .excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .news-card .info .time {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        @media screen and (max-width: 768px) {
            .news-section { padding: 60px 0; }
            .news-grid { grid-template-columns: 1fr; gap: 20px; }
            .news-card { flex-direction: column; }
            .news-card .thumb { width: 100%; height: 200px; }
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0f1a2e 100%);
            color: var(--text-white);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 32px;
            text-align: center;
        }
        .stats-item .num {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stats-item .label {
            font-size: 1rem;
            color: rgba(255,255,255,0.7);
            margin-top: 8px;
        }
        .stats-item .label i { margin-right: 6px; color: var(--secondary); -webkit-text-fill-color: var(--secondary); }
        @media screen and (max-width: 768px) {
            .stats-section { padding: 60px 0; }
            .stats-grid { grid-template-columns: repeat(2,1fr); gap: 24px; }
            .stats-item .num { font-size: 2rem; }
        }

        /* ===== 旅行攻略推荐 ===== */
        .guides-section {
            padding: 80px 0;
            background: var(--bg-light);
        }
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .guide-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .guide-card .img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .guide-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .img-wrap img { transform: scale(1.06); }
        .guide-card .img-wrap .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%,-50%);
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(255,255,255,0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .guide-card:hover .play-btn { background: var(--text-white); transform: translate(-50%,-50%) scale(1.1); }
        .guide-card .card-body {
            padding: 20px;
        }
        .guide-card .card-body .tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .guide-card .card-body h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .guide-card .card-body .guide-meta {
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .guide-card .card-body .guide-meta i { color: var(--primary); }
        @media screen and (max-width: 1024px) {
            .guides-grid { grid-template-columns: repeat(2,1fr); }
        }
        @media screen and (max-width: 520px) {
            .guides-grid { grid-template-columns: 1fr; }
            .guides-section { padding: 60px 0; }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-body);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 18px 24px;
            background: var(--bg-body);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: var(--bg-light); }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            background: var(--bg-light);
        }
        .faq-item.open .faq-answer {
            padding: 18px 24px;
            max-height: 300px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        @media screen and (max-width: 768px) {
            .faq-section { padding: 60px 0; }
            .faq-question { padding: 14px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px; }
            .faq-item.open .faq-answer { padding: 14px 18px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255,255,255,0.03);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-size: 2.4rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media screen and (max-width: 768px) {
            .cta-section { padding: 60px 0; }
            .cta-content h2 { font-size: 1.7rem; }
            .cta-content p { font-size: 1rem; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand .logo span { color: var(--secondary); }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }
        @media screen and (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .site-footer { padding: 40px 0 0; }
        }
        @media screen and (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-brand p { max-width: 100%; }
        }

        /* ===== 响应式辅助 ===== */
        @media screen and (max-width: 520px) {
            .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
            .section-title { margin-bottom: 32px; }
            .container { padding: 0 12px; }
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 12px 40px rgba(37, 99, 235, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }

        /* ===== Container ===== */
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; width: 100%; }
        @media screen and (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--header-h); 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 .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { color: var(--primary); }
        .logo:hover { color: var(--text); }

        .header-nav { display: flex; align-items: center; gap: 8px; }
        .header-nav a {
            padding: 8px 20px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; color: var(--text-light);
            transition: var(--transition); position: relative;
        }
        .header-nav a:hover { color: var(--primary); background: var(--primary-bg); }
        .header-nav a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
        .header-nav a.active::after { content:''; position:absolute; bottom:2px; left:50%; transform:translateX(-50%); width:20px; height:3px; background:var(--primary); border-radius:2px; }

        .header-actions { display: flex; align-items: center; gap: 12px; }
        .header-actions .search-box {
            display: flex; align-items: center; background: var(--bg-alt);
            border: 1px solid var(--border); border-radius: 100px;
            padding: 0 16px; transition: var(--transition);
        }
        .header-actions .search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
        .header-actions .search-box input {
            border: none; background: transparent; padding: 8px 0;
            font-size: 0.9rem; color: var(--text); outline: none; width: 140px;
        }
        .header-actions .search-box i { color: var(--text-light); font-size: 0.9rem; }
        .header-actions .btn-primary {
            padding: 8px 24px; border-radius: 100px; background: var(--primary);
            color: #fff; font-weight: 600; font-size: 0.9rem; border: none;
            transition: var(--transition); cursor: pointer;
        }
        .header-actions .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(37,99,235,0.30); }

        .mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px; }

        @media screen and (max-width: 1024px) {
            .header-nav { display: none; }
            .header-nav.mobile-open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 16px 24px; gap: 6px; }
            .header-nav.mobile-open a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
            .mobile-toggle { display: block; }
            .header-actions .search-box input { width: 100px; }
        }
        @media screen and (max-width: 640px) {
            .header-actions .search-box { display: none; }
            .header-actions .btn-primary { padding: 6px 16px; font-size: 0.8rem; }
        }

        /* ===== Page Hero (inner) ===== */
        .page-hero {
            padding: 120px 0 60px; margin-top: var(--header-h);
            background: linear-gradient(135deg, var(--primary-bg) 0%, #dbeafe 100%);
            position: relative; overflow: hidden;
        }
        .page-hero::before {
            content:''; position:absolute; inset:0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08; pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 1; text-align: center; }
        .page-hero h1 { font-size: 2.4rem; font-weight: 800; color: var(--text); margin-bottom: 12px; letter-spacing: -0.02em; }
        .page-hero .breadcrumb { font-size: 0.95rem; color: var(--text-light); }
        .page-hero .breadcrumb a { color: var(--primary); }
        .page-hero .breadcrumb span { color: var(--text-light); margin: 0 6px; }

        @media screen and (max-width: 768px) {
            .page-hero { padding: 100px 0 40px; }
            .page-hero h1 { font-size: 1.8rem; }
        }

        /* ===== Article Main ===== */
        .article-main { padding: 60px 0 80px; background: var(--bg); }
        .article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; }
        .article-body { min-width: 0; }
        .article-body .article-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
            margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--border);
            font-size: 0.95rem; color: var(--text-light);
        }
        .article-body .article-meta .badge {
            display: inline-block; padding: 4px 16px; border-radius: 100px;
            background: var(--primary-bg); color: var(--primary); font-weight: 600; font-size: 0.85rem;
        }
        .article-body .article-meta i { margin-right: 6px; }
        .article-body .article-content {
            font-size: 1.05rem; line-height: 1.9; color: var(--text);
        }
        .article-body .article-content p { margin-bottom: 1.4em; }
        .article-body .article-content h2, 
        .article-body .article-content h3 { margin-top: 1.8em; margin-bottom: 0.6em; font-weight: 700; }
        .article-body .article-content h2 { font-size: 1.6rem; }
        .article-body .article-content h3 { font-size: 1.3rem; }
        .article-body .article-content ul, 
        .article-body .article-content ol { margin-bottom: 1.4em; padding-left: 1.6em; list-style: disc; }
        .article-body .article-content ol { list-style: decimal; }
        .article-body .article-content li { margin-bottom: 0.4em; }
        .article-body .article-content img { border-radius: var(--radius); margin: 1.6em 0; box-shadow: var(--shadow); }
        .article-body .article-content blockquote {
            border-left: 4px solid var(--primary); background: var(--primary-bg);
            padding: 16px 24px; margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-light);
        }

        .article-body .article-footer {
            margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border);
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
        }
        .article-body .article-footer .tags { display: flex; gap: 8px; flex-wrap: wrap; }
        .article-body .article-footer .tags a {
            padding: 4px 16px; border-radius: 100px; background: var(--bg-alt);
            color: var(--text-light); font-size: 0.85rem; border: 1px solid var(--border);
            transition: var(--transition);
        }
        .article-body .article-footer .tags a:hover { background: var(--primary-bg); color: var(--primary); border-color: var(--primary); }
        .article-body .article-footer .share { display: flex; gap: 10px; }
        .article-body .article-footer .share a {
            width: 40px; height: 40px; border-radius: 50%; background: var(--bg-alt);
            display: flex; align-items: center; justify-content: center;
            color: var(--text-light); border: 1px solid var(--border); transition: var(--transition);
        }
        .article-body .article-footer .share a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* ===== Sidebar ===== */
        .article-sidebar { min-width: 0; }
        .sidebar-card {
            background: var(--bg-alt); border-radius: var(--radius);
            padding: 28px 24px; margin-bottom: 28px; border: 1px solid var(--border);
        }
        .sidebar-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-card ul li { padding: 10px 0; border-bottom: 1px solid var(--border-light); }
        .sidebar-card ul li:last-child { border-bottom: none; }
        .sidebar-card ul li a { display: flex; justify-content: space-between; align-items: center; color: var(--text-light); font-size: 0.95rem; }
        .sidebar-card ul li a:hover { color: var(--primary); }
        .sidebar-card ul li a i { color: var(--text-light); font-size: 0.8rem; }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius); padding: 32px 24px; text-align: center;
            color: #fff; border: none;
        }
        .sidebar-cta h3 { color: #fff; font-size: 1.2rem; margin-bottom: 12px; }
        .sidebar-cta p { color: rgba(255,255,255,0.85); font-size: 0.95rem; margin-bottom: 20px; }
        .sidebar-cta .btn-white {
            display: inline-block; padding: 10px 32px; border-radius: 100px;
            background: #fff; color: var(--primary); font-weight: 600;
            transition: var(--transition); border: none; cursor: pointer;
        }
        .sidebar-cta .btn-white:hover { background: var(--accent-light); color: var(--text); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.20); }

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

        /* ===== Not Found ===== */
        .not-found-box { text-align: center; padding: 80px 24px; }
        .not-found-box i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
        .not-found-box a { display: inline-block; padding: 12px 36px; border-radius: 100px; background: var(--primary); color: #fff; font-weight: 600; }
        .not-found-box a:hover { background: var(--primary-dark); }

        /* ===== Related Posts ===== */
        .related-section { background: var(--bg-alt); padding: 60px 0; }
        .related-section h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 32px; text-align: center; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

        .related-card {
            background: var(--bg); border-radius: var(--radius); overflow: hidden;
            border: 1px solid var(--border); transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img { height: 180px; background: var(--border-light); overflow: hidden; }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body .cat-tag { font-size: 0.8rem; color: var(--primary); font-weight: 600; margin-bottom: 6px; }
        .related-card .card-body h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
        .related-card .card-body h4 a { color: var(--text); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .date { font-size: 0.85rem; color: var(--text-light); }

        @media screen and (max-width: 768px) {
            .related-grid { grid-template-columns: 1fr 1fr; }
        }
        @media screen and (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 60px 0 0; font-size: 0.95rem;
        }
        .site-footer .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .site-footer .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .site-footer .footer-brand .logo i { color: var(--primary-light); }
        .site-footer .footer-brand .logo span { color: var(--primary-light); }
        .site-footer .footer-brand p { line-height: 1.7; max-width: 360px; }
        .site-footer .footer-col h5 { color: #fff; font-weight: 600; margin-bottom: 18px; font-size: 1rem; }
        .site-footer .footer-col ul li { margin-bottom: 10px; }
        .site-footer .footer-col ul li a { color: rgba(255,255,255,0.6); transition: var(--transition); }
        .site-footer .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .site-footer .footer-col ul li a i { width: 20px; margin-right: 6px; }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0; text-align: center; font-size: 0.9rem;
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.6); }
        .site-footer .footer-bottom a:hover { color: var(--primary-light); }

        @media screen and (max-width: 1024px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media screen and (max-width: 640px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-brand p { max-width: 100%; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }

        /* ===== Foundation Overrides ===== */
        .grid-container { max-width: var(--container); padding-left: 24px; padding-right: 24px; }
        @media screen and (max-width: 768px) { .grid-container { padding-left: 16px; padding-right: 16px; } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2A7DE1;
            --primary-dark: #1A5DA8;
            --primary-light: #E8F0FE;
            --secondary: #FF6B35;
            --secondary-light: #FFF0E8;
            --accent: #00B4D8;
            --bg: #FFFFFF;
            --bg-alt: #F7F9FC;
            --bg-dark: #1A2332;
            --text: #1E2A3A;
            --text-light: #6B7A8D;
            --text-white: #F0F4F8;
            --border: #E2E8F0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; margin-bottom: 1rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { color: var(--text-light); margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
        .section-dark p { color: rgba(255,255,255,0.75); }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text) !important;
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { color: var(--primary); }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover { color: var(--primary); background: var(--primary-light); }
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42,125,225,0.15);
        }
        .header-actions .search-box i { color: var(--text-light); font-size: 0.9rem; }
        .header-actions .search-box input {
            background: transparent;
            padding: 8px 10px;
            font-size: 0.9rem;
            color: var(--text);
            width: 160px;
        }
        .header-actions .search-box input::placeholder { color: var(--text-light); }
        .header-actions .btn-header {
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--primary);
            color: #fff !important;
            transition: var(--transition);
        }
        .header-actions .btn-header:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(42,125,225,0.3);
        }
        .menu-toggle { display: none; font-size: 1.5rem; color: var(--text); padding: 4px; }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0F1A2E 0%, #1A2D4A 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg), transparent);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            color: #fff;
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 0.75rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .category-hero p {
            color: rgba(255,255,255,0.85);
            font-size: 1.2rem;
            max-width: 680px;
            margin: 0 auto 1.5rem;
        }
        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .category-hero .hero-tags span {
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(6px);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.2);
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img img { transform: scale(1.06); }
        .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 10px rgba(255,107,53,0.3);
        }
        .card-img .rating {
            position: absolute;
            top: 14px;
            right: 14px;
            background: rgba(0,0,0,0.55);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 50px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card-img .rating i { color: #FFD43B; font-size: 0.75rem; }
        .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .card-body h3 a { color: inherit; }
        .card-body h3 a:hover { color: var(--primary); }
        .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .card-body .meta i { margin-right: 3px; }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 14px;
            flex: 1;
        }
        .card-body .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }
        .card-body .tags span {
            background: var(--bg-alt);
            color: var(--text-light);
            font-size: 0.75rem;
            padding: 3px 12px;
            border-radius: 50px;
            border: 1px solid var(--border);
        }
        .card-body .btn-card {
            align-self: flex-start;
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            background: var(--primary-light);
            color: var(--primary);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .card-body .btn-card:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }

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

        /* ===== Feature Block ===== */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block.reverse { direction: rtl; }
        .feature-block.reverse > * { direction: ltr; }
        .feature-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            aspect-ratio: 4 / 3;
            background: var(--bg-alt);
        }
        .feature-img img { width: 100%; height: 100%; object-fit: cover; }
        .feature-text h2 { margin-bottom: 0.75rem; }
        .feature-text p { font-size: 1.05rem; margin-bottom: 1.2rem; }
        .feature-text ul { margin-bottom: 1.5rem; }
        .feature-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .feature-text ul li i { color: var(--primary); margin-top: 4px; flex-shrink: 0; }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
        .stat-item .num { font-size: 2.6rem; font-weight: 800; color: #fff; line-height: 1.2; }
        .stat-item .num i { color: var(--secondary); font-size: 2rem; margin-right: 6px; }
        .stat-item .label { font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-top: 6px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); box-shadow: 0 2px 12px rgba(42,125,225,0.08); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 0.9rem; }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open { display: block; }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-block h2 { color: #fff; font-size: 2.2rem; margin-bottom: 0.5rem; }
        .cta-block p { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 600px; margin: 0 auto 2rem; }
        .cta-block .btn-cta {
            display: inline-block;
            padding: 14px 44px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            background: #fff;
            color: var(--primary) !important;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .cta-block .btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,0,0,0.25); background: var(--secondary); color: #fff !important; }
        .cta-block .btn-cta i { margin-right: 8px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff !important; margin-bottom: 14px; font-size: 1.4rem; }
        .footer-brand .logo i { color: var(--primary); }
        .footer-brand .logo span { color: var(--primary); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); max-width: 320px; line-height: 1.7; }
        .footer-col h5 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); display: flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-col ul li a i { width: 16px; color: var(--primary); }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: #fff; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .grid-cards { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .feature-block { grid-template-columns: 1fr; gap: 30px; }
            .feature-block.reverse { direction: ltr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .category-hero h1 { font-size: 2.4rem; }
            .header-actions .search-box input { width: 100px; }
        }

        @media (max-width: 768px) {
            .site-header .container { flex-wrap: wrap; }
            .header-nav { display: none; order: 3; width: 100%; flex-direction: column; background: var(--bg); border-top: 1px solid var(--border); padding: 12px 0; margin-top: 8px; border-radius: var(--radius-sm); box-shadow: var(--shadow); }
            .header-nav.open { display: flex; }
            .header-nav a { padding: 10px 20px; width: 100%; border-radius: 0; }
            .header-nav a.active::after { display: none; }
            .header-nav a.active { background: var(--primary-light); }
            .menu-toggle { display: block; }
            .header-actions .btn-header { padding: 8px 16px; font-size: 0.85rem; }
            .header-actions .search-box input { width: 80px; }
            .category-hero { padding: 70px 0 50px; min-height: 280px; }
            .category-hero h1 { font-size: 1.8rem; }
            .category-hero p { font-size: 1rem; }
            .grid-cards { grid-template-columns: 1fr; gap: 18px; }
            .section { padding: 50px 0; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .stat-item { padding: 20px 14px; }
            .stat-item .num { font-size: 2rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-block { padding: 40px 24px; }
            .cta-block h2 { font-size: 1.6rem; }
            .faq-question { padding: 14px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px 14px; }
            .card-body { padding: 16px 18px 20px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.4rem; }
            .category-hero h1 { font-size: 1.5rem; }
            .category-hero .hero-tags span { font-size: 0.75rem; padding: 4px 12px; }
            .header-actions .search-box { display: none; }
            .header-actions .btn-header { padding: 6px 14px; font-size: 0.8rem; }
            .stat-item .num { font-size: 1.6rem; }
            .cta-block .btn-cta { padding: 12px 30px; font-size: 0.95rem; }
        }

        /* ===== Misc ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-light); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 0.65rem; color: var(--text-light); }
        .section-title { margin-bottom: 2.5rem; }
        .section-title h2 { margin-bottom: 0.5rem; }
        .section-title p { max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
        .btn-outline {
            display: inline-block;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            transition: var(--transition);
        }
        .btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-1px); }
        .btn-outline i { margin-right: 6px; }
        .text-light { color: var(--text-light); }
        .gap-2 { gap: 20px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .mt-2 { margin-top: 2rem; }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2A6B9E;
            --primary-light: #3A8BC8;
            --primary-dark: #1B4D73;
            --primary-bg: #EBF3FA;
            --secondary: #E67E22;
            --secondary-light: #F39C4A;
            --accent: #27AE60;
            --bg-light: #F8FAFB;
            --bg-white: #FFFFFF;
            --bg-dark: #1A2A3A;
            --text-dark: #1E2A3A;
            --text-body: #3D4F5F;
            --text-muted: #7A8A9A;
            --text-light: #FFFFFF;
            --border: #E2E8F0;
            --border-light: #F0F4F8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 12px 36px rgba(42, 107, 158, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--primary-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-dark);
            white-space: nowrap;
        }
        .logo i {
            color: var(--primary);
            font-size: 28px;
        }
        .logo span {
            color: var(--secondary);
        }
        .logo:hover {
            color: var(--text-dark);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .header-nav a.active {
            color: var(--primary-dark);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(42, 107, 158, 0.12);
        }
        .header-actions .search-box input {
            border: none;
            background: transparent;
            padding: 8px 0;
            width: 160px;
            font-size: 14px;
            color: var(--text-dark);
            outline: none;
        }
        .header-actions .search-box input::placeholder {
            color: var(--text-muted);
        }
        .header-actions .search-box button {
            border: none;
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
            padding: 6px 0 6px 10px;
            font-size: 15px;
            transition: var(--transition);
        }
        .header-actions .search-box button:hover {
            color: var(--primary);
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary);
            color: var(--text-light);
        }
        .btn-header:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: var(--text-light);
        }
        .btn-header-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }
        .btn-header-outline:hover {
            background: var(--primary);
            color: var(--text-light);
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        @media (max-width: 1024px) {
            .header-nav {
                gap: 4px;
            }
            .header-nav a {
                padding: 6px 12px;
                font-size: 14px;
            }
            .header-actions .search-box input {
                width: 120px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-md);
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-actions .search-box {
                display: none;
            }
            .btn-header {
                padding: 7px 16px;
                font-size: 13px;
            }
            .btn-header-outline {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .logo {
                font-size: 20px;
            }
            .logo i {
                font-size: 22px;
            }
            .header-inner {
                padding: 0 12px;
            }
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--text-light);
        }
        .page-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 40px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .section-title p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .title-tag {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary-bg);
            color: var(--primary);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== 攻略分类标签 ===== */
        .guide-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 40px;
        }
        .guide-tabs .tab-btn {
            padding: 10px 24px;
            border-radius: 30px;
            border: 1.5px solid var(--border);
            background: var(--bg-white);
            color: var(--text-body);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }
        .guide-tabs .tab-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .guide-tabs .tab-btn.active {
            border-color: var(--primary);
            background: var(--primary);
            color: var(--text-light);
            box-shadow: 0 4px 16px rgba(42, 107, 158, 0.25);
        }

        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .guide-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .card-img {
            transform: scale(1.03);
        }
        .guide-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .guide-card .card-tags span {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .guide-card .card-tags .tag-hot {
            background: #FDE8E8;
            color: #C0392B;
        }
        .guide-card .card-tags .tag-new {
            background: #E8F8F0;
            color: var(--accent);
        }
        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .guide-card h3 a {
            color: var(--text-dark);
        }
        .guide-card h3 a:hover {
            color: var(--primary);
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .guide-card .card-meta i {
            margin-right: 4px;
        }
        .guide-card .card-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            margin-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .guide-card .card-footer .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-footer .read-more:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        .guide-card .card-footer .rating {
            color: #F39C12;
            font-size: 13px;
        }
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .guide-card .card-img {
                height: 180px;
            }
            .guide-card .card-body {
                padding: 18px 20px 20px;
            }
        }

        /* ===== 特色攻略区块 ===== */
        .feature-guide {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .feature-guide .fg-img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .feature-guide .fg-content {
            padding: 40px 48px 40px 0;
        }
        .feature-guide .fg-content .fg-tag {
            display: inline-block;
            padding: 4px 16px;
            background: var(--secondary);
            color: var(--text-light);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .feature-guide .fg-content h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-dark);
        }
        .feature-guide .fg-content p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .feature-guide .fg-content .fg-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
        }
        .feature-guide .fg-content .fg-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
        }
        .feature-guide .fg-content .fg-list li i {
            color: var(--accent);
            margin-top: 3px;
            font-size: 16px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            background: var(--primary);
            color: var(--text-light);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: var(--text-light);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            border: 1.5px solid var(--primary);
            background: transparent;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: var(--text-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        @media (max-width: 1024px) {
            .feature-guide {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .feature-guide .fg-content {
                padding: 32px 28px;
            }
            .feature-guide .fg-img {
                height: 280px;
                width: 100%;
            }
            .feature-guide .fg-content h3 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .feature-guide .fg-content {
                padding: 24px 20px;
            }
            .feature-guide .fg-content h3 {
                font-size: 20px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 攻略数据看板 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-item .stat-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .stat-item .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
        }

        /* ===== 攻略技巧列表 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .tip-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .tip-item .tip-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .tip-item .tip-content h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .tip-item .tip-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tip-item {
                padding: 20px 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question i {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item .faq-answer p {
            margin-bottom: 0;
        }
        @media (max-width: 520px) {
            .faq-item .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 72px 0;
            text-align: center;
            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: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            background: var(--secondary);
            color: var(--text-light);
            transition: var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(230, 126, 34, 0.35);
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .cta-section .btn-cta {
                padding: 14px 28px;
                font-size: 16px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-light);
            margin-bottom: 16px;
            font-size: 22px;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand .logo span {
            color: var(--secondary-light);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-light);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col ul li a:hover {
            color: var(--secondary-light);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 14px;
            width: 18px;
            color: var(--secondary-light);
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .cell h3,
        .cell h4 {
            color: var(--text-dark);
        }

        /* ===== 额外响应式 ===== */
        @media (max-width: 480px) {
            .header-actions .btn-header {
                padding: 6px 12px;
                font-size: 12px;
            }
            .guide-tabs .tab-btn {
                padding: 6px 16px;
                font-size: 13px;
            }
        }