/* roulang page: index */
:root {
            --primary: #9e6f3d;
            --primary-dark: #7a5329;
            --primary-light: #d8b688;
            --dark-bg: #14171a;
            --dark-surface: #1e2329;
            --dark-card: #272d34;
            --light-bg: #f9f8f5;
            --light-surface: #ffffff;
            --text-main: #2b2b2b;
            --text-muted: #6c727a;
            --text-light: #f5f6f8;
            --text-light-muted: #9aa3af;
            --border-dark: rgba(255, 255, 255, 0.08);
            --border-light: #e5e3dc;
            --accent-green: #3f6e52;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
            --shadow-md: 0 10px 25px rgba(0,0,0,0.12);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --transition: all 0.28s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航: 透明玻璃沉浸导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            background: rgba(20, 23, 26, 0.78);
            border-bottom: 1px solid var(--border-dark);
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }

        .brand-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .brand-logo span {
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 400;
            border-left: 1px solid rgba(255,255,255,0.2);
            padding-left: 10px;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 28px;
        }

        .nav-link {
            color: var(--text-light-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 0;
            position: relative;
        }

        .nav-link:hover,
        .nav-link.active {
            color: #ffffff;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary-light);
        }

        .nav-extra {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-nav {
            padding: 8px 18px;
            background: var(--primary);
            color: #ffffff;
            font-size: 0.88rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            border: 1px solid var(--primary-dark);
        }

        .btn-nav:hover {
            background: var(--primary-dark);
        }

        /* Hero: 深色信息面板 + 右侧 faux 数据榜单 */
        .hero-section {
            background-color: var(--dark-bg);
            background-image: linear-gradient(rgba(20, 23, 26, 0.88), rgba(20, 23, 26, 0.94)), url('/assets/images/4281f2f37a3e5059.webp');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            padding: 160px 0 100px;
            border-bottom: 1px solid var(--border-dark);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(158, 111, 61, 0.2);
            color: var(--primary-light);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            letter-spacing: 0.8px;
            margin-bottom: 20px;
            border: 1px solid rgba(216, 182, 136, 0.3);
        }

        .hero-title {
            font-size: 2.6rem;
            line-height: 1.28;
            font-weight: 700;
            margin-bottom: 24px;
            color: #ffffff;
        }

        .hero-desc {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-light-muted);
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            margin-bottom: 36px;
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 0.98rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--primary-light);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 1px solid rgba(255,255,255,0.25);
            color: #ffffff;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-size: 0.98rem;
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.06);
            border-color: rgba(255,255,255,0.4);
        }

        .hero-faux-panel {
            background: var(--dark-surface);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 26px;
            box-shadow: var(--shadow-md);
        }

        .panel-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-dark);
            margin-bottom: 18px;
        }

        .panel-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: #ffffff;
        }

        .panel-badge {
            background: rgba(63, 110, 82, 0.25);
            color: #8bd4a5;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
        }

        .rank-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            background: var(--dark-card);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.04);
        }

        .rank-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .rank-num {
            font-weight: 700;
            color: var(--primary-light);
            font-size: 0.95rem;
            width: 20px;
        }

        .rank-name {
            font-size: 0.9rem;
            color: #f1f1f1;
        }

        .rank-tag {
            font-size: 0.78rem;
            color: var(--text-light-muted);
        }

        .rank-metric {
            font-size: 0.88rem;
            color: #d1b58a;
            font-weight: 600;
        }

        /* 通用区块排版 */
        .site-section {
            padding: 85px 0;
        }

        .section-alt {
            background-color: #f2efe9;
        }

        .section-header {
            max-width: 800px;
            margin: 0 auto 52px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #212529;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .section-intro {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* 区块 1: 内容日历 */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .calendar-card {
            background: var(--light-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .calendar-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .cal-date {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .cal-title {
            font-size: 1.12rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: #1a1c1e;
        }

        .cal-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .cal-meta {
            font-size: 0.8rem;
            color: #8c939d;
            border-top: 1px dashed var(--border-light);
            padding-top: 12px;
            display: flex;
            justify-content: space-between;
        }

        /* 区块 2: 热门专题 */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .topic-card {
            background: var(--light-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .topic-thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

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

        .topic-body {
            padding: 24px;
        }

        .topic-cat {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-green);
            margin-bottom: 8px;
        }

        .topic-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #212529;
            line-height: 1.4;
        }

        .topic-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.68;
            margin-bottom: 18px;
        }

        .topic-link {
            font-size: 0.88rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 区块 3: 观点解读 (对比矩阵) */
        .compare-table-wrapper {
            background: var(--light-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .compare-row {
            display: grid;
            grid-template-columns: 200px 1fr 1fr;
            border-bottom: 1px solid var(--border-light);
        }

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

        .compare-head {
            background: #2b3038;
            color: #ffffff;
            font-weight: 600;
            font-size: 0.98rem;
        }

        .compare-head .cell {
            padding: 18px 22px;
            border-right: 1px solid rgba(255,255,255,0.08);
        }

        .cell {
            padding: 22px;
            font-size: 0.93rem;
            line-height: 1.68;
            border-right: 1px solid var(--border-light);
        }

        .cell:last-child {
            border-right: none;
        }

        .cell-label {
            font-weight: 700;
            background: #f7f6f2;
            color: #3b4249;
            display: flex;
            align-items: center;
        }

        /* 区块 4: 资讯精选 */
        .news-columns {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
        }

        .news-featured {
            background: var(--light-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }

        .news-feat-img {
            height: 280px;
            overflow: hidden;
        }

        .news-feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-feat-body {
            padding: 30px;
        }

        .news-feat-title {
            font-size: 1.45rem;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .news-feat-excerpt {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

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

        .news-item {
            background: var(--light-surface);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .news-item-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #212529;
            line-height: 1.45;
        }

        .news-item-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 区块 5: 媒体精选 / 实录观察 */
        .media-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .media-card {
            background: var(--light-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .media-thumb {
            height: 160px;
            overflow: hidden;
        }

        .media-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .media-content {
            padding: 18px;
        }

        .media-title {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .media-snippet {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 区块 6: 数据分析 / 调研报告 */
        .data-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .stat-box {
            background: var(--light-surface);
            padding: 28px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            text-align: center;
        }

        .stat-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            font-family: inherit;
        }

        .stat-label {
            font-size: 0.92rem;
            color: var(--text-main);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .stat-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .data-analysis-card {
            background: var(--light-surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px;
        }

        .data-analysis-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .data-analysis-content {
            font-size: 0.95rem;
            color: #4a515a;
            line-height: 1.8;
        }

        /* 区块 7: 裂变邀请蓝图 */
        .fission-section {
            background: #20252b;
            color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 56px;
            margin: 20px auto;
            border: 1px solid rgba(255,255,255,0.08);
        }

        .fission-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .fission-title {
            font-size: 1.85rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .fission-desc {
            font-size: 0.96rem;
            color: var(--text-light-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .fission-progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            margin-bottom: 8px;
            color: var(--primary-light);
        }

        .fission-bar-bg {
            background: rgba(255,255,255,0.1);
            height: 10px;
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 28px;
        }

        .fission-bar-fill {
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            width: 68%;
            height: 100%;
        }

        .fission-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-bottom: 30px;
        }

        .step-item {
            background: rgba(255,255,255,0.04);
            padding: 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.06);
            text-align: center;
        }

        .step-num {
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .step-txt {
            font-size: 0.85rem;
            color: #e2e8f0;
        }

        .fission-rank-box {
            background: rgba(0,0,0,0.25);
            border: 1px solid rgba(255,255,255,0.06);
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .fission-rank-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--primary-light);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding-bottom: 10px;
        }

        .fission-rank-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            font-size: 0.88rem;
            border-bottom: 1px dashed rgba(255,255,255,0.06);
        }

        /* 区块 8: 平台保障条 */
        .guarantee-bar {
            background: var(--light-surface);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 44px 0;
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .guarantee-icon {
            width: 44px;
            height: 44px;
            background: rgba(158, 111, 61, 0.12);
            color: var(--primary-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .guarantee-text h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .guarantee-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 区块 9: 城市切换交流条 */
        .city-switch-section {
            background: #ffffff;
            padding: 60px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .switch-pills {
            display: flex;
            justify-content: center;
            gap: 14px;
            margin-bottom: 30px;
        }

        .pill-btn {
            padding: 10px 24px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            border: 1px solid var(--border-light);
            background: #fdfdfd;
            cursor: pointer;
        }

        .pill-btn.active {
            background: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
        }

        .city-brief-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .city-box {
            padding: 28px;
            background: var(--light-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
        }

        .city-box-head {
            font-size: 1.2rem;
            font-weight: 700;
            color: #212529;
            margin-bottom: 12px;
        }

        .city-box-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 区块 10: 订阅条与收口 */
        .subscribe-section {
            background: #171b1f;
            color: #ffffff;
            padding: 70px 0;
            border-top: 1px solid var(--border-dark);
        }

        .subscribe-inner {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .sub-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .sub-desc {
            font-size: 0.98rem;
            color: var(--text-light-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .sub-form {
            display: flex;
            gap: 12px;
            max-width: 540px;
            margin: 0 auto 20px;
        }

        .sub-input {
            flex-grow: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.15);
            background: rgba(255,255,255,0.06);
            color: #ffffff;
            font-size: 0.95rem;
            outline: none;
        }

        .sub-input:focus {
            border-color: var(--primary-light);
        }

        .sub-btn {
            background: var(--primary);
            color: #ffffff;
            border: none;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .sub-btn:hover {
            background: var(--primary-dark);
        }

        /* 页脚 */
        .site-footer {
            background: #0f1214;
            color: #7b838f;
            padding: 60px 0 30px;
            font-size: 0.88rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 18px;
            font-size: 0.85rem;
        }

        .footer-nav-title {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a:hover {
            color: var(--primary-light);
        }

        .footer-copy {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .media-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .site-header {
                position: relative;
                background: #14171a;
            }
            .nav-links {
                display: none;
            }
            .hero-section {
                padding: 60px 0 60px;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .compare-row {
                grid-template-columns: 1fr;
            }
            .news-columns {
                grid-template-columns: 1fr;
            }
            .fission-grid {
                grid-template-columns: 1fr;
            }
            .fission-section {
                padding: 30px 20px;
            }
            .city-brief-grid {
                grid-template-columns: 1fr;
            }
            .sub-form {
                flex-direction: column;
            }
            .footer-copy {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .calendar-grid,
            .topics-grid,
            .media-grid,
            .data-stats-row,
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .fission-steps {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #9e6f3d;
      --primary-dark: #7a5329;
      --primary-light: #d8b688;
      --dark-bg: #14171a;
      --dark-surface: #1e2329;
      --dark-card: #272d34;
      --light-bg: #f9f8f5;
      --light-surface: #ffffff;
      --text-main: #2b2b2b;
      --text-muted: #6c727a;
      --text-light: #f5f6f8;
      --text-light-muted: #9aa3af;
      --border-dark: rgba(255, 255, 255, 0.08);
      --border-light: #e5e3dc;
      --accent-green: #3f6e52;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
      --shadow-md: 0 10px 25px rgba(0,0,0,0.12);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --transition: all 0.28s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航: 透明玻璃沉浸导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      background: rgba(20, 23, 26, 0.78);
      border-bottom: 1px solid var(--border-dark);
      transition: var(--transition);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo span {
      color: var(--primary-light);
      font-size: 0.85rem;
      font-weight: 400;
      border-left: 1px solid rgba(255,255,255,0.2);
      padding-left: 10px;
    }
    .nav-links {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      color: var(--text-light-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover,
    .nav-link.active {
      color: #ffffff;
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-light);
    }
    .nav-extra {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-nav {
      padding: 8px 18px;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.88rem;
      border-radius: var(--radius-sm);
      font-weight: 500;
      border: 1px solid var(--primary-dark);
    }
    .btn-nav:hover {
      background: var(--primary-dark);
    }

    /* 落地页强转化首屏 */
    .cat-hero {
      background-color: var(--dark-bg);
      background-image: linear-gradient(rgba(20, 23, 26, 0.85), rgba(20, 23, 26, 0.93)), url('/assets/images/5b77683f3ad2936f.webp');
      background-size: cover;
      background-position: center;
      color: #ffffff;
      padding: 150px 0 80px;
      border-bottom: 1px solid var(--border-dark);
    }
    .cat-hero-content {
      max-width: 860px;
    }
    .breadcrumbs {
      display: flex;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--primary-light);
      margin-bottom: 18px;
    }
    .breadcrumbs a {
      color: var(--text-light-muted);
    }
    .breadcrumbs a:hover {
      color: #ffffff;
    }
    .cat-hero-title {
      font-size: 2.5rem;
      line-height: 1.3;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .cat-hero-desc {
      font-size: 1.05rem;
      line-height: 1.8;
      color: var(--text-light-muted);
      margin-bottom: 28px;
    }
    .hero-keypoints {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-bottom: 32px;
    }
    .keypoint-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-dark);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .keypoint-dot {
      width: 7px;
      height: 7px;
      background: var(--primary-light);
      border-radius: 50%;
    }
    .cat-hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
      margin-bottom: 24px;
    }
    .btn-main {
      background: var(--primary);
      color: #ffffff;
      padding: 13px 32px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      border: 1px solid var(--primary-light);
      display: inline-block;
    }
    .btn-main:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }
    .trust-bar {
      display: flex;
      gap: 24px;
      font-size: 0.85rem;
      color: var(--text-light-muted);
      border-top: 1px solid var(--border-dark);
      padding-top: 16px;
    }
    .trust-bar span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 章节通用样式 */
    .cat-section {
      padding: 85px 0;
    }
    .section-alt {
      background: #f2eee8;
    }
    .section-dark {
      background: var(--dark-surface);
      color: #ffffff;
    }
    .section-heading-wrap {
      margin-bottom: 48px;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .section-dark .section-badge {
      color: var(--primary-light);
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: -0.3px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
    }
    .section-dark .section-subtitle {
      color: var(--text-light-muted);
    }

    /* 板块2: 工夫茶道法核心拆解 (左右错落图文) */
    .tea-technique-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .tech-image-wrap {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .tech-image-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .tech-image-wrap:hover img {
      transform: scale(1.03);
    }
    .tech-badge-overlay {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(20, 23, 26, 0.85);
      color: #ffffff;
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      border-left: 3px solid var(--primary-light);
    }
    .tech-steps-list {
      display: flex;
      flex-direction: column;
      gap: 22px;
    }
    .step-card {
      background: var(--light-surface);
      border: 1px solid var(--border-light);
      padding: 20px 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: var(--primary);
      transform: translateX(4px);
    }
    .step-card h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: var(--primary-dark);
      display: flex;
      justify-content: space-between;
    }
    .step-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块3: 广州与北京茶室三大核心维度差异表 */
    .diff-table-container {
      background: var(--light-surface);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .diff-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 720px;
    }
    .diff-table th, .diff-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-light);
    }
    .diff-table th {
      background: #f6f3ee;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .diff-table tr:last-child td {
      border-bottom: none;
    }
    .diff-table td strong {
      display: block;
      margin-bottom: 4px;
      color: var(--primary-dark);
    }
    .tag-gz {
      display: inline-block;
      padding: 4px 10px;
      background: #ede6dd;
      color: var(--primary-dark);
      border-radius: var(--radius-sm);
      font-size: 0.8rem;
      font-weight: 600;
    }
    .tag-bj {
      display: inline-block;
      padding: 4px 10px;
      background: #e1e9e4;
      color: var(--accent-green);
      border-radius: var(--radius-sm);
      font-size: 0.8rem;
      font-weight: 600;
    }

    /* 板块4: 广州茶室特色茶种谱系 */
    .tea-type-cards {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .tea-card {
      background: var(--dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .tea-card:hover {
      border-color: var(--primary-light);
      transform: translateY(-4px);
    }
    .tea-card-icon {
      font-size: 1.8rem;
      color: var(--primary-light);
      margin-bottom: 16px;
    }
    .tea-card h4 {
      font-size: 1.2rem;
      margin-bottom: 10px;
      color: #ffffff;
    }
    .tea-card p {
      font-size: 0.9rem;
      color: var(--text-light-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .tea-card-meta {
      font-size: 0.82rem;
      color: var(--primary-light);
      border-top: 1px solid var(--border-dark);
      padding-top: 12px;
    }

    /* 板块5: 广州茶艺师评定与茶席互动准则 */
    .rules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .rule-item {
      background: var(--light-surface);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .rule-num {
      font-size: 2rem;
      font-weight: 800;
      color: #e2dbce;
      line-height: 1;
      margin-bottom: 14px;
    }
    .rule-item h4 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .rule-item p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块6: 茶友论坛热议问答 (FAQ) */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .faq-item {
      background: var(--light-surface);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 28px;
    }
    .faq-item h4 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-item h4::before {
      content: 'Q';
      display: inline-block;
      width: 26px;
      height: 26px;
      background: var(--primary-light);
      color: #ffffff;
      text-align: center;
      line-height: 26px;
      border-radius: 50%;
      font-size: 0.85rem;
      font-weight: 700;
    }
    .faq-item p {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.7;
      padding-left: 36px;
    }

    /* 板块7: 茶友行动收口 (CTA) */
    .cat-cta-section {
      background-color: var(--dark-bg);
      background-image: linear-gradient(rgba(20, 23, 26, 0.9), rgba(20, 23, 26, 0.9)), url('/assets/images/9b14cae811feea58.jpg');
      background-size: cover;
      background-position: center;
      color: #ffffff;
      padding: 80px 0;
      text-align: center;
      border-top: 1px solid var(--border-dark);
    }
    .cta-inner {
      max-width: 680px;
      margin: 0 auto;
    }
    .cta-inner h3 {
      font-size: 2.1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .cta-inner p {
      font-size: 1.02rem;
      color: var(--text-light-muted);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .cta-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
    }
    .btn-secondary {
      background: transparent;
      color: #ffffff;
      border: 1px solid var(--border-light);
      padding: 13px 30px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.08);
    }

    /* 页脚 */
    .site-footer {
      background: var(--dark-bg);
      color: var(--text-light-muted);
      padding: 70px 0 30px;
      border-top: 1px solid var(--border-dark);
      font-size: 0.92rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 1.15rem;
      color: #ffffff;
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-brand p {
      line-height: 1.7;
      font-size: 0.88rem;
    }
    .footer-nav-title {
      font-size: 0.98rem;
      color: #ffffff;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-light-muted);
    }
    .footer-links a:hover {
      color: var(--primary-light);
    }
    .footer-copy {
      border-top: 1px solid var(--border-dark);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #6a737d;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-keypoints {
        grid-template-columns: repeat(2, 1fr);
      }
      .tea-technique-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .tea-type-cards {
        grid-template-columns: repeat(2, 1fr);
      }
      .rules-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-links, .nav-extra {
        display: none;
      }
      .cat-hero-title {
        font-size: 2rem;
      }
      .hero-keypoints {
        grid-template-columns: 1fr;
      }
      .rules-grid {
        grid-template-columns: 1fr;
      }
      .tea-type-cards {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-copy {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }
    @media (max-width: 520px) {
      .cat-hero {
        padding: 120px 0 60px;
      }
      .cat-hero-actions {
        flex-direction: column;
        align-items: flex-start;
      }
      .btn-main, .btn-secondary {
        width: 100%;
        text-align: center;
      }
      .trust-bar {
        flex-direction: column;
        gap: 8px;
      }
    }

/* roulang page: category2 */
:root {
  --primary: #9e6f3d;
  --primary-dark: #7a5329;
  --primary-light: #d8b688;
  --dark-bg: #14171a;
  --dark-surface: #1e2329;
  --dark-card: #272d34;
  --light-bg: #f9f8f5;
  --light-surface: #ffffff;
  --text-main: #2b2b2b;
  --text-muted: #6c727a;
  --text-light: #f5f6f8;
  --text-light-muted: #9aa3af;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: #e5e3dc;
  --accent-green: #3f6e52;
  --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 25px rgba(0,0,0,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --transition: all 0.28s ease;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--light-bg);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(20, 23, 26, 0.88);
  border-bottom: 1px solid var(--border-dark);
  transition: var(--transition);
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.brand-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo span {
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 400;
  border-left: 1px solid rgba(255,255,255,0.2);
  padding-left: 10px;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
}
.nav-link {
  color: var(--text-light-muted);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}
.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-light);
}
.nav-extra {
  display: flex;
  align-items: center;
  gap: 16px;
}
.btn-nav {
  padding: 8px 18px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  border: 1px solid var(--primary-dark);
}
.btn-nav:hover {
  background: var(--primary-dark);
}

/* Category Hero: 帮助文档/知识中心风格 */
.category-hero {
  background-color: var(--dark-bg);
  background-image: linear-gradient(rgba(20, 23, 26, 0.85), rgba(20, 23, 26, 0.92)), url('/assets/images/5b77683f3ad2936f.webp');
  background-size: cover;
  background-position: center;
  padding: 150px 0 80px;
  border-bottom: 1px solid var(--border-dark);
  text-align: center;
  color: #ffffff;
}
.hero-breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-light-muted);
  margin-bottom: 20px;
}
.hero-breadcrumb a:hover {
  color: var(--primary-light);
}
.category-hero h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 16px;
  font-weight: 700;
}
.category-hero .hero-intro {
  max-width: 820px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
  color: var(--text-light-muted);
  line-height: 1.8;
}
.doc-search-box {
  max-width: 680px;
  margin: 0 auto 28px;
  position: relative;
}
.doc-search-box input {
  width: 100%;
  padding: 16px 24px;
  padding-right: 130px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(30, 35, 41, 0.9);
  color: #ffffff;
  font-size: 1rem;
  outline: none;
  backdrop-filter: blur(8px);
}
.doc-search-box input:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(216, 182, 136, 0.2);
}
.doc-search-box button {
  position: absolute;
  right: 8px;
  top: 8px;
  bottom: 8px;
  background: var(--primary);
  border: none;
  color: #ffffff;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.doc-search-box button:hover {
  background: var(--primary-dark);
}
.hot-chips-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
}
.chip-label {
  font-size: 0.88rem;
  color: var(--primary-light);
}
.chip-item {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  color: var(--text-light);
  transition: var(--transition);
}
.chip-item:hover {
  background: var(--primary);
  border-color: var(--primary);
}

/* 核心章节样式 */
.section-pad {
  padding: 85px 0;
}
.section-header {
  margin-bottom: 45px;
}
.section-header.text-center {
  text-align: center;
}
.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--primary);
  background: rgba(158, 111, 61, 0.12);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  font-weight: 600;
}
.section-title {
  font-size: 2rem;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 14px;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.75;
}
.section-header.text-center .section-subtitle {
  margin: 0 auto;
}

/* 板块1：结构概览与知识导读（左右结构） */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.overview-card-box {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.overview-card-box h3 {
  font-size: 1.45rem;
  margin-bottom: 18px;
  color: var(--text-main);
}
.overview-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
}
.overview-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: #444;
}
.checklist-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}
.overview-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}
.overview-figure img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: var(--transition);
}
.overview-figure:hover img {
  transform: scale(1.03);
}

/* 板块2：京派茶室四大形态网格 */
.section-bg-white {
  background: var(--light-surface);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.space-type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.space-type-card {
  background: var(--light-bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.space-type-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.space-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 14px;
}
.space-type-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text-main);
}
.space-type-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.68;
}

/* 板块3：南北工作室关键差异参数对照表 */
.comparison-table-wrap {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}
.comp-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.comp-table th {
  background: #f1ede6;
  padding: 18px 24px;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-main);
  border-bottom: 2px solid var(--border-light);
}
.comp-table td {
  padding: 18px 24px;
  font-size: 0.92rem;
  color: #4a4a4a;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}
.comp-table tr:hover td {
  background: #fcfbf9;
}
.tag-gz {
  display: inline-block;
  background: rgba(63, 110, 82, 0.12);
  color: var(--accent-green);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.8rem;
}
.tag-bj {
  display: inline-block;
  background: rgba(158, 111, 61, 0.15);
  color: var(--primary-dark);
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.8rem;
}

/* 板块4：深色文人雅集与品饮器度面板 */
.section-dark-ritual {
  background-color: var(--dark-bg);
  color: #ffffff;
}
.ritual-inner-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.ritual-text .section-title {
  color: #ffffff;
}
.ritual-text p {
  color: var(--text-light-muted);
  margin-bottom: 24px;
  font-size: 0.98rem;
  line-height: 1.8;
}
.ritual-items-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ritual-box {
  background: var(--dark-surface);
  border: 1px solid var(--border-dark);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
}
.ritual-box h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  color: var(--primary-light);
}
.ritual-box p {
  font-size: 0.88rem;
  color: var(--text-light-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 板块5：北京代表性茶区与茶舍品鉴案例 */
.case-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.case-card {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.case-card-img {
  height: 210px;
  overflow: hidden;
}
.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.case-card:hover .case-card-img img {
  transform: scale(1.05);
}
.case-card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.case-region-badge {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 8px;
}
.case-card-body h3 {
  font-size: 1.22rem;
  margin-bottom: 12px;
  color: var(--text-main);
}
.case-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.68;
  margin-bottom: 18px;
}
.case-meta {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--border-light);
  font-size: 0.82rem;
  color: #888;
  display: flex;
  justify-content: space-between;
}

/* 板块6：南北客群问答（FAQ 手风琴结构） */
.faq-accordion {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px 28px;
  box-shadow: var(--shadow-sm);
}
.faq-question {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-question::before {
  content: 'Q';
  display: inline-block;
  width: 24px;
  height: 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.82rem;
  text-align: center;
  line-height: 24px;
  flex-shrink: 0;
}
.faq-answer {
  font-size: 0.92rem;
  color: #555;
  line-height: 1.75;
  padding-left: 36px;
}

/* 板块7：茶室交流指引与加入茶会行动条 */
.cta-banner-section {
  background: linear-gradient(135deg, #272d34 0%, #1a1e22 100%);
  color: #ffffff;
  padding: 70px 0;
  border-top: 1px solid var(--border-dark);
}
.cta-banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.cta-banner-text h3 {
  font-size: 1.75rem;
  margin-bottom: 10px;
  color: #ffffff;
}
.cta-banner-text p {
  color: var(--text-light-muted);
  font-size: 0.98rem;
  max-width: 680px;
}
.cta-banner-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}
.btn-gold {
  background: var(--primary);
  color: #ffffff;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  border: 1px solid var(--primary-light);
  display: inline-block;
}
.btn-gold:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* Footer: 沿用全站结构 */
.site-footer {
  background: var(--dark-bg);
  color: var(--text-light-muted);
  border-top: 1px solid var(--border-dark);
  padding: 70px 0 35px;
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-brand h3 {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 16px;
  line-height: 1.4;
}
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-light-muted);
}
.footer-nav-title {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-light-muted);
}
.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-copy {
  border-top: 1px solid var(--border-dark);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: #6c727a;
}

/* 响应式断点适配 */
@media (max-width: 1024px) {
  .space-type-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .case-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .category-hero h1 {
    font-size: 1.95rem;
  }
  .overview-grid,
  .ritual-inner-grid,
  .cta-banner-content {
    grid-template-columns: 1fr;
    flex-direction: column;
    text-align: left;
  }
  .nav-links {
    display: none;
  }
  .space-type-grid,
  .case-cards-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-copy {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* roulang page: category3 */
:root {
  --primary: #9e6f3d;
  --primary-dark: #7a5329;
  --primary-light: #d8b688;
  --dark-bg: #14171a;
  --dark-surface: #1e2329;
  --dark-card: #272d34;
  --light-bg: #f9f8f5;
  --light-surface: #ffffff;
  --text-main: #2b2b2b;
  --text-muted: #6c727a;
  --text-light: #f5f6f8;
  --text-light-muted: #9aa3af;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: #e5e3dc;
  --accent-green: #3f6e52;
  --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 25px rgba(0,0,0,0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --transition: all 0.28s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--light-bg);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部导航: 透明玻璃沉浸导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(20, 23, 26, 0.88);
  border-bottom: 1px solid var(--border-dark);
  transition: var(--transition);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo span {
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 400;
  border-left: 1px solid rgba(255,255,255,0.2);
  padding-left: 10px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-link {
  color: var(--text-light-muted);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-light);
}

.nav-extra {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-nav {
  padding: 8px 18px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  border: 1px solid var(--primary-dark);
}

.btn-nav:hover {
  background: var(--primary-dark);
}

/* 按钮基础 */
.btn-primary {
  background: var(--primary);
  color: #ffffff;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-light);
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid rgba(255,255,255,0.25);
  color: #ffffff;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 0.98rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.4);
}

/* Hero: 对比选型与高亮卡片前置 */
.category-hero {
  background-color: var(--dark-bg);
  background-image: linear-gradient(rgba(20, 23, 26, 0.92), rgba(20, 23, 26, 0.96)), url('/assets/images/5b77683f3ad2936f.webp');
  background-size: cover;
  background-position: center;
  color: #ffffff;
  padding: 150px 0 80px;
  border-bottom: 1px solid var(--border-dark);
}

.hero-header-block {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 50px;
}

.hero-pill {
  display: inline-block;
  background: rgba(158, 111, 61, 0.25);
  color: var(--primary-light);
  padding: 5px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
  border: 1px solid rgba(216, 182, 136, 0.35);
}

.hero-header-block h1 {
  font-size: 2.5rem;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 18px;
  color: #ffffff;
}

.hero-header-block p {
  font-size: 1.05rem;
  color: var(--text-light-muted);
  line-height: 1.8;
}

/* 选型对比卡片组 (三列，推荐档高亮) */
.comparison-hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.tier-card {
  background: var(--dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.tier-card:hover {
  transform: translateY(-4px);
  border-color: rgba(216, 182, 136, 0.4);
}

.tier-card.featured {
  background: var(--dark-card);
  border: 2px solid var(--primary-light);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  transform: scale(1.03);
}

.tier-badge {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 12px;
  letter-spacing: 0.5px;
}

.tier-card h3 {
  font-size: 1.3rem;
  color: #ffffff;
  margin-bottom: 10px;
}

.tier-desc {
  font-size: 0.88rem;
  color: var(--text-light-muted);
  margin-bottom: 24px;
  min-height: 48px;
}

.tier-highlight {
  font-size: 1.6rem;
  color: var(--primary-light);
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-dark);
}

.tier-highlight span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-light-muted);
  margin-left: 6px;
}

.tier-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.tier-features li {
  font-size: 0.92rem;
  color: var(--text-light);
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}

.tier-features li::before {
  content: '✓';
  color: var(--primary-light);
  font-weight: bold;
}

/* 章节通用 */
.section-block {
  padding: 90px 0;
}

.section-alt {
  background-color: #f1ede6;
}

.section-head {
  margin-bottom: 48px;
}

.section-head.center {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-head .tag {
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: inline-block;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* 核心参数对照表 */
.comparison-table-wrapper {
  background: var(--light-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
}

.comparison-table th {
  background: #f7f5f0;
  font-weight: 700;
  color: var(--text-main);
}

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

.comparison-table tr:hover td {
  background-color: #faf9f6;
}

.dimension-badge {
  display: inline-block;
  background: rgba(158, 111, 61, 0.12);
  color: var(--primary-dark);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

/* 图文深度拆解 (双列非对称) */
.deep-dive-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 60px;
}

.deep-dive-grid.reverse {
  grid-template-columns: 0.9fr 1.1fr;
}

.deep-dive-grid.reverse .deep-content {
  order: 2;
}

.deep-dive-grid.reverse .deep-media {
  order: 1;
}

.deep-content h3 {
  font-size: 1.6rem;
  color: var(--text-main);
  margin-bottom: 16px;
  font-weight: 700;
}

.deep-content p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.85;
  margin-bottom: 20px;
}

.deep-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.spec-box {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  padding: 16px;
  border-radius: var(--radius-sm);
}

.spec-box strong {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.spec-box span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.deep-media img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* 茶客选型实战建议卡片网格 */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.scenario-card {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.scenario-icon {
  width: 44px;
  height: 44px;
  background: rgba(158, 111, 61, 0.1);
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.scenario-card h4 {
  font-size: 1.15rem;
  color: var(--text-main);
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 常见品鉴误区手风琴/列表 */
.misconception-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.misconception-item {
  background: var(--light-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
}

.misconception-item h4 {
  font-size: 1.1rem;
  color: #a43820;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.misconception-item h4::before {
  content: "✕ 误区：";
  font-size: 0.95rem;
  font-weight: 700;
}

.misconception-item p {
  font-size: 0.92rem;
  color: var(--text-main);
  line-height: 1.75;
}

.misconception-item .truth {
  color: var(--accent-green);
  font-weight: 600;
  margin-top: 8px;
  display: block;
}

/* 转化区 / 探店邀约条 */
.cta-banner {
  background-color: var(--dark-bg);
  background-image: linear-gradient(rgba(20, 23, 26, 0.85), rgba(20, 23, 26, 0.92)), url('/assets/images/9b14cae811feea58.jpg');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  text-align: center;
  color: #ffffff;
  border-top: 1px solid var(--border-dark);
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.05rem;
  color: var(--text-light-muted);
  max-width: 680px;
  margin: 0 auto 32px;
}

.cta-banner .cta-buttons {
  display: flex;
  justify-content: center;
  gap: 18px;
}

/* 页脚样式 */
.site-footer {
  background-color: var(--dark-bg);
  color: var(--text-light-muted);
  padding: 80px 0 30px;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand h3 {
  color: #ffffff;
  font-size: 1.15rem;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-light-muted);
}

.footer-nav-title {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: var(--text-light-muted);
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-copy {
  padding-top: 30px;
  border-top: 1px solid var(--border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .comparison-hero-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .tier-card.featured {
    transform: none;
  }
  .deep-dive-grid,
  .deep-dive-grid.reverse {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .deep-dive-grid.reverse .deep-content {
    order: 1;
  }
  .deep-dive-grid.reverse .deep-media {
    order: 2;
  }
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-extra {
    display: none;
  }
  .hero-header-block h1 {
    font-size: 1.9rem;
  }
  .section-block {
    padding: 60px 0;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-copy {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
  .comparison-table {
    display: block;
    overflow-x: auto;
  }
}