/* roulang page: index */
:root {
            --brand-primary: #1E3A39;
            --brand-secondary: #C9792E;
            --brand-bg: #F5F3EF;
            --brand-card: #FFFFFF;
            --brand-border: #E7E2D9;
            --brand-text: #212529;
            --brand-muted: #6C757D;
            --brand-success: #2E7D6F;
            --brand-alert: #A94438;
            --brand-footer-bg: #182B2A;
            --brand-radius-sm: 6px;
            --brand-radius: 8px;
            --brand-radius-md: 12px;
            --brand-radius-lg: 16px;
            --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
            --brand-transition: all 0.22s ease;
            --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --brand-navbar-width: 260px;
            --brand-navbar-collapsed: 220px;
            --brand-section-padding: 64px;
            --brand-card-padding: 22px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        a:hover {
            color: var(--brand-secondary);
            text-decoration: none;
        }

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

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

        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
            border-radius: var(--brand-radius);
        }

        /* ========== 左侧竖向导航（桌面端） ========== */
        .brand-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--brand-navbar-width);
            background: var(--brand-primary);
            color: #f0f4f3;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s ease, width 0.25s ease;
        }

        .brand-sidebar .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 18px 20px;
        }

        .brand-sidebar .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 20px;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-sidebar .sidebar-logo .logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            line-height: 1.2;
            margin-top: 2px;
        }

        .brand-sidebar .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }

        .brand-sidebar .sidebar-nav li {
            margin-bottom: 6px;
        }

        .brand-sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            position: relative;
        }

        .brand-sidebar .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .brand-sidebar .sidebar-nav a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }

        .brand-sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--brand-secondary);
            border-radius: 2px;
        }

        .brand-sidebar .sidebar-nav a .nav-indicator {
            font-size: 14px;
            opacity: 0.7;
        }

        .brand-sidebar .sidebar-bottom {
            flex-shrink: 0;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .brand-sidebar .sidebar-bottom a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            transition: var(--brand-transition);
        }

        .brand-sidebar .sidebar-bottom a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .brand-siderbar-tagline {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            padding: 8px 14px 0;
            letter-spacing: 0.4px;
        }

        /* ========== 移动端顶部导航 ========== */
        .brand-mobile-nav {
            display: none;
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1045;
            background: var(--brand-primary);
            color: #fff;
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .brand-mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
        }

        .brand-mobile-nav .mobile-logo .logo-mark {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--brand-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .brand-mobile-nav .navbar-toggler {
            border: none;
            background: transparent;
            color: #fff;
            font-size: 24px;
            padding: 6px 8px;
            border-radius: var(--brand-radius-sm);
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s ease;
        }

        .brand-mobile-nav .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .brand-mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1050;
            background: rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .brand-mobile-menu.show {
            display: block;
        }

        .brand-mobile-menu .mobile-menu-panel {
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 280px;
            max-width: 82vw;
            background: var(--brand-bg);
            padding: 28px 20px 24px;
            overflow-y: auto;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            animation: slideInMobile 0.28s ease;
        }

        @keyframes slideInMobile {
            from {
                transform: translateX(-100%);
            }
            to {
                transform: translateX(0);
            }
        }

        .brand-mobile-menu .mobile-menu-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 36px;
            height: 36px;
            border: none;
            background: var(--brand-border);
            border-radius: 50%;
            font-size: 18px;
            color: var(--brand-text);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background-color 0.2s ease;
        }

        .brand-mobile-menu .mobile-menu-close:hover {
            background: #ddd8cc;
        }

        .brand-mobile-menu .mobile-menu-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 24px;
            display: block;
            padding-right: 40px;
        }

        .brand-mobile-menu .mobile-menu-links {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .brand-mobile-menu .mobile-menu-links li {
            margin-bottom: 4px;
        }

        .brand-mobile-menu .mobile-menu-links a {
            display: block;
            padding: 12px 14px;
            border-radius: var(--brand-radius);
            color: var(--brand-text);
            font-weight: 500;
            font-size: 16px;
            transition: var(--brand-transition);
        }

        .brand-mobile-menu .mobile-menu-links a:hover {
            background: rgba(30, 58, 57, 0.07);
            color: var(--brand-primary);
        }

        .brand-mobile-menu .mobile-menu-links a.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
        }

        .brand-mobile-menu .mobile-menu-bottom {
            padding-top: 16px;
            border-top: 1px solid var(--brand-border);
            font-size: 14px;
            color: var(--brand-muted);
        }

        /* ========== 内容区域 ========== */
        .brand-main-wrapper {
            margin-left: var(--brand-navbar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left 0.25s ease;
        }

        main {
            flex: 1;
            width: 100%;
        }

        .brand-container {
            max-width: 1140px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }

        .brand-section {
            padding-top: var(--brand-section-padding);
            padding-bottom: var(--brand-section-padding);
        }

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

        .brand-section--dark {
            background-color: var(--brand-primary);
            color: #f0f4f3;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .brand-section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--brand-primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .brand-section-desc {
            font-size: 16px;
            color: var(--brand-muted);
            line-height: 1.7;
            max-width: 720px;
            margin-bottom: 28px;
        }

        .brand-section--dark .brand-section-title {
            color: #ffffff;
        }

        .brand-section--dark .brand-section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== 卡片通用 ========== */
        .brand-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: var(--brand-card-padding);
            transition: var(--brand-transition);
            height: 100%;
            position: relative;
        }

        .brand-card:hover {
            box-shadow: var(--brand-shadow);
            border-color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .brand-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .brand-card .card-text {
            font-size: 15px;
            color: var(--brand-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .brand-card .card-meta {
            font-size: 13px;
            color: var(--brand-muted);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .brand-card .card-meta .badge-tag {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .brand-card .card-meta .badge-tag--orange {
            background: rgba(201, 121, 46, 0.12);
            color: var(--brand-secondary);
        }

        /* ========== Hero 杂志分栏 ========== */
        .brand-hero {
            position: relative;
            min-height: 60vh;
            display: flex;
            align-items: center;
            padding: 72px 0;
            background-image: url('/assets/images/276870a4784c39b2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .brand-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(24, 43, 42, 0.92) 0%, rgba(30, 58, 57, 0.86) 45%, rgba(30, 58, 57, 0.72) 100%);
            z-index: 1;
        }

        .brand-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .brand-hero .hero-left {
            padding-right: 40px;
        }

        .brand-hero .hero-left .hero-kicker {
            display: inline-block;
            background: var(--brand-secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.6px;
        }

        .brand-hero .hero-left h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .brand-hero .hero-left .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 26px;
            max-width: 540px;
        }

        .brand-hero .hero-left .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .brand-hero .hero-right {
            padding-left: 16px;
        }

        .brand-hero .hero-featured-card {
            background: #ffffff;
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.15);
            max-width: 420px;
            margin-left: auto;
        }

        .brand-hero .hero-featured-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .brand-hero .hero-featured-card .featured-body {
            padding: 18px 20px 20px;
        }

        .brand-hero .hero-featured-card .featured-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 6px;
        }

        .brand-hero .hero-featured-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.35;
            margin-bottom: 8px;
        }

        .brand-hero .hero-featured-card p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .brand-hero .hero-featured-card .featured-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .brand-hero .hero-featured-card .featured-link:hover {
            color: var(--brand-secondary);
        }

        /* ========== 按钮 ========== */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            font-weight: 600;
            font-size: 15px;
            padding: 11px 22px;
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: var(--brand-transition);
            min-height: 44px;
        }

        .btn-brand:hover {
            background: #16302e;
            color: #fff;
            box-shadow: 0 4px 12px rgba(30, 58, 57, 0.25);
        }

        .btn-brand:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
        }

        .btn-brand:active {
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.18);
            transform: translateY(1px);
        }

        .btn-brand--orange {
            background: var(--brand-secondary);
        }

        .btn-brand--orange:hover {
            background: #b56826;
        }

        .btn-brand--outline {
            background: transparent;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
        }

        .btn-brand--outline:hover {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            box-shadow: none;
        }

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

        .btn-brand--light:hover {
            background: #f0f0f0;
            color: var(--brand-primary);
        }

        .btn-brand:disabled,
        .btn-brand.disabled {
            background: #E9ECEF;
            color: #aaa;
            cursor: not-allowed;
            box-shadow: none;
        }

        /* ========== 指标看板 ========== */
        .metric-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: var(--brand-transition);
            height: 100%;
        }

        .metric-card:hover {
            box-shadow: var(--brand-shadow);
            border-color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            font-variant-numeric: tabular-nums;
        }

        .metric-card .metric-unit {
            font-size: 15px;
            font-weight: 500;
            color: var(--brand-secondary);
            margin-left: 2px;
        }

        .metric-card .metric-label {
            font-size: 14px;
            color: var(--brand-muted);
            margin-top: 6px;
            line-height: 1.4;
        }

        .metric-card .metric-trend {
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-success);
            margin-top: 8px;
            display: inline-block;
        }

        /* ========== 服务矩阵 ========== */
        .service-matrix-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 24px 20px;
            height: 100%;
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
        }

        .service-matrix-card:hover {
            box-shadow: var(--brand-shadow);
            border-color: var(--brand-primary);
            transform: translateY(-3px);
        }

        .service-matrix-card .service-icon {
            font-size: 26px;
            color: var(--brand-secondary);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .service-matrix-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .service-matrix-card p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== 资讯列表 ========== */
        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--brand-border);
            transition: var(--brand-transition);
        }

        .news-list-item:last-child {
            border-bottom: none;
        }

        .news-list-item:hover {
            padding-left: 8px;
        }

        .news-list-item img {
            width: 120px;
            height: 80px;
            object-fit: cover;
            border-radius: var(--brand-radius-sm);
            flex-shrink: 0;
        }

        .news-list-item .news-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--brand-text);
            line-height: 1.4;
            margin-bottom: 4px;
            transition: color 0.2s ease;
        }

        .news-list-item:hover .news-body h4 {
            color: var(--brand-primary);
        }

        .news-list-item .news-body p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.55;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-list-item .news-body .news-date {
            font-size: 12px;
            color: var(--brand-muted);
            letter-spacing: 0.3px;
        }

        /* ========== 专题卡片 ========== */
        .topic-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            transition: var(--brand-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            box-shadow: var(--brand-shadow);
            border-color: var(--brand-primary);
            transform: translateY(-3px);
        }

        .topic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            display: block;
        }

        .topic-card .topic-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card .topic-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .topic-card .topic-body p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 10px;
            flex: 1;
        }

        /* ========== 时间轴 ========== */
        .milestone-timeline {
            position: relative;
            padding-left: 28px;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--brand-border);
        }

        .milestone-item {
            position: relative;
            padding-bottom: 28px;
        }

        .milestone-item:last-child {
            padding-bottom: 0;
        }

        .milestone-item::before {
            content: '';
            position: absolute;
            left: -25px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--brand-secondary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--brand-secondary);
        }

        .milestone-item .milestone-year {
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-secondary);
            letter-spacing: 0.6px;
            margin-bottom: 4px;
        }

        .milestone-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 4px;
        }

        .milestone-item p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 对比表格 ========== */
        .compare-table-wrapper {
            overflow-x: auto;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            background: var(--brand-card);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            min-width: 560px;
        }

        .compare-table th,
        .compare-table td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--brand-border);
        }

        .compare-table th {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
        }

        .compare-table td {
            color: var(--brand-text);
            line-height: 1.55;
        }

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

        .compare-table .positive-highlight {
            color: var(--brand-success);
            font-weight: 600;
        }

        /* ========== 口碑卡片 ========== */
        .testimonial-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px;
            height: 100%;
            transition: var(--brand-transition);
        }

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

        .testimonial-card .testimonial-quote {
            font-size: 15px;
            color: var(--brand-text);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .testimonial-author .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .testimonial-card .testimonial-author .name {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
        }

        .testimonial-card .testimonial-author .role {
            font-size: 12px;
            color: var(--brand-muted);
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--brand-transition);
        }

        .faq-item:hover {
            box-shadow: 0 4px 16px rgba(30, 58, 57, 0.08);
        }

        .faq-item .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-primary);
            line-height: 1.45;
            transition: var(--brand-transition);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-item .faq-question:hover {
            background: rgba(30, 58, 57, 0.04);
        }

        .faq-item .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-secondary);
            font-size: 18px;
            transition: transform 0.25s ease;
        }

        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 15px;
            color: var(--brand-muted);
            line-height: 1.7;
            display: none;
            animation: fadeIn 0.3s ease;
        }

        .faq-item.active .faq-answer {
            display: block;
            border-left: 3px solid var(--brand-secondary);
            padding-left: 18px;
            margin-left: 20px;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(180deg);
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(4px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== 表单 ========== */
        .brand-form-section {
            background: var(--brand-primary);
            color: #f0f4f3;
            border-radius: var(--brand-radius-lg);
            padding: 40px 36px;
            position: relative;
            overflow: hidden;
        }

        .brand-form-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201, 121, 46, 0.18);
        }

        .brand-form-section .form-title {
            font-size: 24px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .brand-form-section .form-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .brand-form-section .form-control {
            background: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--brand-radius);
            padding: 11px 14px;
            font-size: 15px;
            color: var(--brand-text);
            min-height: 46px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .brand-form-section .form-control:focus {
            border-color: var(--brand-secondary);
            box-shadow: 0 0 0 4px rgba(201, 121, 46, 0.2);
            outline: none;
        }

        .brand-form-section .form-label {
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 6px;
            display: block;
            position: relative;
            z-index: 1;
        }

        .brand-form-section .form-select {
            background-color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--brand-radius);
            padding: 11px 14px;
            font-size: 15px;
            color: var(--brand-text);
            min-height: 46px;
            width: 100%;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .brand-form-section .form-select:focus {
            border-color: var(--brand-secondary);
            box-shadow: 0 0 0 4px rgba(201, 121, 46, 0.2);
            outline: none;
        }

        .brand-form-section .privacy-note {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
            position: relative;
            z-index: 1;
        }

        /* ========== 页脚 ========== */
        .brand-footer {
            background: var(--brand-footer-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 40px 0 20px;
            font-size: 14px;
        }

        .brand-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .brand-footer .footer-brand-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
            max-width: 260px;
            margin-bottom: 16px;
        }

        .brand-footer .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .brand-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .brand-footer .footer-links li {
            margin-bottom: 6px;
        }

        .brand-footer .footer-links a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .brand-footer .footer-links a:hover {
            color: var(--brand-secondary);
        }

        .brand-footer .footer-subscribe {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.6;
        }

        .brand-footer .footer-subscribe .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 10px;
        }

        .brand-footer .footer-subscribe input {
            flex: 1;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--brand-radius);
            padding: 9px 12px;
            color: #fff;
            font-size: 14px;
            min-height: 38px;
            transition: border-color 0.2s ease;
        }

        .brand-footer .footer-subscribe input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .brand-footer .footer-subscribe input:focus {
            border-color: var(--brand-secondary);
            outline: none;
        }

        .brand-footer .footer-subscribe button {
            background: var(--brand-secondary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 9px 16px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background-color 0.2s ease;
            min-height: 38px;
            white-space: nowrap;
        }

        .brand-footer .footer-subscribe button:hover {
            background: #b56826;
        }

        .brand-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 28px;
            padding-top: 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            justify-content: space-between;
        }

        .brand-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
        }

        .brand-footer .footer-bottom a:hover {
            color: var(--brand-secondary);
        }

        /* ========== 图片占位 ========== */
        .image-placeholder {
            background: #EDE9E2;
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: var(--brand-radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #b5ada0;
            font-size: 13px;
            font-weight: 500;
        }

        .image-placeholder--3-2 {
            aspect-ratio: 3 / 2;
        }

        /* ========== 入口矩阵 ========== */
        .entry-matrix-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: var(--brand-transition);
            height: 100%;
            display: block;
            color: var(--brand-text);
        }

        .entry-matrix-card:hover {
            box-shadow: var(--brand-shadow);
            border-color: var(--brand-primary);
            transform: translateY(-3px);
            color: var(--brand-text);
        }

        .entry-matrix-card .entry-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-secondary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .entry-matrix-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 6px;
        }

        .entry-matrix-card p {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.55;
            margin-bottom: 0;
        }

        /* ========== 快速解答 ========== */
        .quick-answer-item {
            display: flex;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--brand-border);
            align-items: flex-start;
        }

        .quick-answer-item:last-child {
            border-bottom: none;
        }

        .quick-answer-item .qa-mark {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .quick-answer-item .qa-content h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-text);
            margin-bottom: 4px;
        }

        .quick-answer-item .qa-content p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== 平台保障卡 ========== */
        .assurance-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px 18px;
            text-align: center;
            height: 100%;
            transition: var(--brand-transition);
        }

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

        .assurance-card .assurance-icon {
            font-size: 28px;
            color: var(--brand-secondary);
            margin-bottom: 10px;
            font-weight: 700;
        }

        .assurance-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 6px;
        }

        .assurance-card p {
            font-size: 13px;
            color: var(--brand-muted);
            line-height: 1.55;
            margin-bottom: 0;
        }

        /* ========== 响应式断点 ========== */
        @media (min-width: 1200px) {
            .brand-container {
                max-width: 1140px;
            }
        }

        @media (min-width: 992px) and (max-width: 1199px) {
            :root {
                --brand-navbar-width: 220px;
                --brand-section-padding: 48px;
            }
            .brand-hero .hero-left h1 {
                font-size: 30px;
            }
            .brand-hero .hero-featured-card img {
                height: 150px;
            }
        }

        @media (max-width: 991.98px) {
            .brand-sidebar {
                display: none !important;
            }
            .brand-mobile-nav {
                display: flex;
            }
            .brand-main-wrapper {
                margin-left: 0;
            }
            .brand-hero {
                min-height: auto;
                padding: 48px 0;
            }
            .brand-hero .hero-left {
                padding-right: 0;
                margin-bottom: 28px;
            }
            .brand-hero .hero-left h1 {
                font-size: 28px;
            }
            .brand-hero .hero-right {
                padding-left: 0;
            }
            .brand-hero .hero-featured-card {
                max-width: 100%;
                margin-left: 0;
            }
            .brand-section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .brand-section-title {
                font-size: 22px;
            }
            .brand-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .brand-form-section {
                padding: 28px 22px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --brand-section-padding: 40px;
                --brand-card-padding: 18px;
            }
            body {
                font-size: 15px;
            }
            .brand-section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .brand-section-title {
                font-size: 20px;
            }
            .brand-hero .hero-left h1 {
                font-size: 24px;
                line-height: 1.3;
            }
            .brand-hero .hero-left .hero-desc {
                font-size: 15px;
            }
            .brand-card .card-title {
                font-size: 16px;
            }
            .metric-card .metric-value {
                font-size: 26px;
            }
            .news-list-item img {
                width: 80px;
                height: 60px;
            }
            .compare-table-wrapper {
                border-radius: var(--brand-radius-sm);
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
            .brand-footer {
                padding: 28px 0 16px;
            }
            .brand-footer .footer-brand {
                font-size: 18px;
            }
            .brand-footer .footer-subscribe .subscribe-form {
                flex-direction: column;
            }
            .brand-form-section {
                padding: 22px 16px;
            }
            .brand-form-section .form-title {
                font-size: 20px;
            }
            .faq-item .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                font-size: 14px;
            }
            .btn-brand {
                padding: 10px 18px;
                font-size: 14px;
                min-height: 44px;
            }
        }

        @media (max-width: 519.98px) {
            .brand-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-hero .hero-left h1 {
                font-size: 21px;
            }
            .metric-card {
                padding: 14px 10px;
            }
            .metric-card .metric-value {
                font-size: 22px;
            }
            .metric-card .metric-label {
                font-size: 12px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-list-item img {
                width: 100%;
                height: 160px;
                object-fit: cover;
            }
            .brand-form-section .form-title {
                font-size: 18px;
            }
            .brand-footer .footer-bottom {
                font-size: 11px;
            }
            .brand-mobile-menu .mobile-menu-panel {
                width: 260px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #1E3A39;
            --brand-secondary: #C9792E;
            --brand-bg: #F5F3EF;
            --brand-card: #FFFFFF;
            --brand-border: #E7E2D9;
            --brand-text: #212529;
            --brand-muted: #6C757D;
            --brand-success: #2E7D6F;
            --brand-alert: #A94438;
            --brand-footer-bg: #182B2A;
            --brand-radius-sm: 6px;
            --brand-radius: 8px;
            --brand-radius-md: 12px;
            --brand-radius-lg: 16px;
            --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
            --brand-transition: all 0.22s ease;
            --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --brand-navbar-width: 260px;
            --brand-navbar-collapsed: 220px;
            --brand-section-padding: 64px;
            --brand-card-padding: 22px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        a:hover {
            color: var(--brand-secondary);
            text-decoration: none;
        }

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

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

        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
            border-radius: var(--brand-radius);
        }

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

        /* ========== 左侧竖向导航（桌面端） ========== */
        .brand-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--brand-navbar-width);
            background: var(--brand-primary);
            color: #f0f4f3;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s ease, width 0.25s ease;
        }

        .brand-sidebar .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 18px 20px;
        }

        .brand-sidebar .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 20px;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-sidebar .sidebar-logo .logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            line-height: 1.2;
            margin-top: 2px;
        }

        .brand-sidebar .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }

        .brand-sidebar .sidebar-nav li {
            margin-bottom: 6px;
        }

        .brand-sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            position: relative;
        }

        .brand-sidebar .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .brand-sidebar .sidebar-nav a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }

        .brand-sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--brand-secondary);
            border-radius: 2px;
        }

        .brand-sidebar .sidebar-nav a .nav-indicator {
            font-size: 14px;
            opacity: 0.7;
        }

        .brand-sidebar .sidebar-bottom {
            flex-shrink: 0;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .brand-sidebar .sidebar-bottom a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 14px;
            transition: var(--brand-transition);
        }

        .brand-sidebar .sidebar-bottom a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* ========== 移动端顶部导航 ========== */
        .brand-mobile-nav {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--brand-primary);
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
        }

        .brand-mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }

        .brand-mobile-nav .mobile-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }

        .brand-mobile-nav .navbar-toggler {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: var(--brand-radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            transition: var(--brand-transition);
        }

        .brand-mobile-nav .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .brand-mobile-menu {
            display: none;
            background: var(--brand-primary);
            padding: 8px 16px 16px;
            position: sticky;
            top: 68px;
            z-index: 1049;
        }

        .brand-mobile-menu.open {
            display: block;
        }

        .brand-mobile-menu a {
            display: block;
            padding: 12px 14px;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--brand-radius);
            font-weight: 500;
            font-size: 15px;
            transition: var(--brand-transition);
        }

        .brand-mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .brand-mobile-menu a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }

        /* ========== 主内容区 ========== */
        .brand-main {
            margin-left: var(--brand-navbar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== 板块通用 ========== */
        .brand-section {
            padding: var(--brand-section-padding) 0;
        }

        .brand-section-light {
            background: var(--brand-card);
        }

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

        .brand-section-divider {
            border-top: 1px solid var(--brand-border);
        }

        .brand-section-heading {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .brand-section-sub {
            font-size: 15px;
            color: var(--brand-muted);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 720px;
        }

        .brand-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
        }

        .brand-badge--accent {
            background: rgba(201, 121, 46, 0.12);
            color: var(--brand-secondary);
        }

        .brand-badge--green {
            background: rgba(46, 125, 111, 0.12);
            color: var(--brand-success);
        }

        /* ========== 按钮 ========== */
        .brand-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: var(--brand-radius);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 20px;
            transition: var(--brand-transition);
            border: 1px solid transparent;
            cursor: pointer;
            line-height: 1.5;
        }

        .brand-btn-primary {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
        }

        .brand-btn-primary:hover {
            background: #152929;
            border-color: #152929;
            color: #fff;
            box-shadow: var(--brand-shadow);
        }

        .brand-btn-secondary {
            background: var(--brand-secondary);
            color: #fff;
            border-color: var(--brand-secondary);
        }

        .brand-btn-secondary:hover {
            background: #a5612a;
            border-color: #a5612a;
            color: #fff;
            box-shadow: var(--brand-shadow);
        }

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

        .brand-btn-outline:hover {
            background: rgba(30, 58, 57, 0.1);
            color: var(--brand-primary);
        }

        .brand-btn-text {
            background: none;
            color: var(--brand-secondary);
            padding: 6px 4px;
            border: none;
            text-decoration: none;
        }

        .brand-btn-text:hover {
            color: var(--brand-primary);
            text-decoration: underline;
        }

        /* ========== 标签 ========== */
        .brand-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--brand-radius-sm);
            font-size: 12px;
            font-weight: 600;
            background: var(--brand-bg);
            color: var(--brand-muted);
            margin-right: 6px;
            margin-bottom: 6px;
            letter-spacing: 0.2px;
        }

        .brand-tag--primary {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
        }

        /* ========== 卡片 ========== */
        .brand-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: var(--brand-card-padding);
            transition: var(--brand-transition);
            height: 100%;
        }

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

        .brand-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            line-height: 1.45;
            transition: var(--brand-transition);
        }

        .brand-card:hover .brand-card-title {
            color: var(--brand-secondary);
        }

        .brand-card-text {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .brand-card-meta {
            font-size: 13px;
            color: var(--brand-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 列表卡 ========== */
        .brand-list-item {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 18px 20px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: var(--brand-transition);
            margin-bottom: 12px;
        }

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

        .brand-list-item-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--brand-radius);
            overflow: hidden;
            flex-shrink: 0;
            background: #EDE9E2;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--brand-muted);
        }

        .brand-list-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-list-item-body {
            flex: 1;
            min-width: 0;
        }

        .brand-list-item-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 4px;
            line-height: 1.4;
            transition: var(--brand-transition);
        }

        .brand-list-item:hover .brand-list-item-title {
            color: var(--brand-secondary);
        }

        .brand-list-item-desc {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .brand-list-item-meta {
            font-size: 12px;
            color: var(--brand-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* ========== 筛选栏 ========== */
        .brand-filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .brand-filter-btn {
            padding: 8px 16px;
            border-radius: 20px;
            border: 1px solid var(--brand-border);
            background: var(--brand-card);
            color: var(--brand-text);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--brand-transition);
            white-space: nowrap;
        }

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

        .brand-filter-btn.active {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
        }

        /* ========== 数字看板 ========== */
        .brand-stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .brand-stat-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 18px;
            text-align: center;
            transition: var(--brand-transition);
        }

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

        .brand-stat-value {
            font-size: 28px;
            font-weight: 700;
            color: var(--brand-primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .brand-stat-value .unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-muted);
            margin-left: 2px;
        }

        .brand-stat-label {
            font-size: 13px;
            color: var(--brand-muted);
            margin-top: 4px;
        }

        .brand-stat-trend {
            font-size: 12px;
            font-weight: 600;
            margin-top: 4px;
        }

        .brand-stat-trend.up {
            color: var(--brand-success);
        }

        .brand-stat-trend.down {
            color: var(--brand-alert);
        }

        /* ========== 热度排行 ========== */
        .brand-rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .brand-rank-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--brand-border);
            transition: var(--brand-transition);
        }

        .brand-rank-list li:last-child {
            border-bottom: none;
        }

        .brand-rank-list li:hover {
            padding-left: 6px;
        }

        .brand-rank-number {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-bg);
            color: var(--brand-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            flex-shrink: 0;
        }

        .brand-rank-list li:nth-child(1) .brand-rank-number {
            background: var(--brand-secondary);
            color: #fff;
        }

        .brand-rank-list li:nth-child(2) .brand-rank-number {
            background: var(--brand-primary);
            color: #fff;
        }

        .brand-rank-list li:nth-child(3) .brand-rank-number {
            background: var(--brand-success);
            color: #fff;
        }

        .brand-rank-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-text);
            flex: 1;
            min-width: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .brand-rank-count {
            font-size: 13px;
            color: var(--brand-muted);
            flex-shrink: 0;
        }

        /* ========== 快照面板 ========== */
        .brand-snapshot {
            background: var(--brand-primary);
            border-radius: var(--brand-radius-lg);
            padding: 28px;
            color: #f0f4f3;
            position: relative;
            overflow: hidden;
        }

        .brand-snapshot::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(201, 121, 46, 0.15);
            pointer-events: none;
        }

        .brand-snapshot-title {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .brand-snapshot-text {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            position: relative;
            z-index: 1;
            margin-bottom: 16px;
        }

        .brand-snapshot .brand-btn {
            position: relative;
            z-index: 1;
        }

        /* ========== FAQ ========== */
        .brand-faq-item {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--brand-transition);
        }

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

        .brand-faq-question {
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--brand-transition);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .brand-faq-question:hover {
            color: var(--brand-secondary);
        }

        .brand-faq-question .faq-icon {
            font-size: 18px;
            color: var(--brand-muted);
            transition: var(--brand-transition);
            flex-shrink: 0;
        }

        .brand-faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-secondary);
        }

        .brand-faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            display: none;
        }

        .brand-faq-item.open .brand-faq-answer {
            display: block;
        }

        .brand-faq-item.open {
            border-left: 3px solid var(--brand-primary);
        }

        /* ========== CTA ========== */
        .brand-cta {
            background: var(--brand-primary);
            border-radius: var(--brand-radius-lg);
            padding: 36px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .brand-cta::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(201, 121, 46, 0.14);
            pointer-events: none;
        }

        .brand-cta-title {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .brand-cta-text {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            max-width: 600px;
        }

        .brand-cta .brand-btn {
            position: relative;
            z-index: 1;
        }

        /* ========== 页脚 ========== */
        .brand-footer {
            background: var(--brand-footer-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 40px 0 24px;
            margin-top: auto;
        }

        .brand-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .brand-footer .footer-brand-desc {
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }

        .brand-footer .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .brand-footer .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .brand-footer .footer-links li {
            margin-bottom: 8px;
        }

        .brand-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--brand-transition);
        }

        .brand-footer .footer-links a:hover {
            color: var(--brand-secondary);
        }

        .brand-footer .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 12px;
        }

        .brand-footer .subscribe-form {
            display: flex;
            gap: 8px;
        }

        .brand-footer .subscribe-form input {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            transition: var(--brand-transition);
            min-width: 0;
        }

        .brand-footer .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .brand-footer .subscribe-form input:focus {
            outline: none;
            border-color: var(--brand-secondary);
            background: rgba(255, 255, 255, 0.1);
        }

        .brand-footer .subscribe-form button {
            padding: 10px 18px;
            border-radius: var(--brand-radius);
            border: 1px solid var(--brand-secondary);
            background: var(--brand-secondary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--brand-transition);
            white-space: nowrap;
        }

        .brand-footer .subscribe-form button:hover {
            background: #a5612a;
            border-color: #a5612a;
        }

        .brand-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .brand-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
        }

        .brand-footer .footer-bottom a:hover {
            color: var(--brand-secondary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199.98px) {
            :root {
                --brand-navbar-width: 220px;
                --brand-section-padding: 48px;
            }
            .brand-stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .brand-sidebar {
                display: none;
            }

            .brand-mobile-nav {
                display: flex;
            }

            .brand-main {
                margin-left: 0;
            }

            :root {
                --brand-section-padding: 40px;
                --brand-card-padding: 18px;
            }

            .brand-section-heading {
                font-size: 22px;
            }

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

        @media (max-width: 767.98px) {
            .brand-section-heading {
                font-size: 20px;
            }

            .brand-stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .brand-stat-value {
                font-size: 22px;
            }

            .brand-list-item {
                flex-direction: column;
                padding: 14px;
                gap: 10px;
            }

            .brand-list-item-thumb {
                width: 100%;
                height: 160px;
            }

            .brand-cta {
                padding: 24px 20px;
            }

            .brand-cta-title {
                font-size: 18px;
            }

            .brand-snapshot {
                padding: 20px;
            }

            .brand-footer .subscribe-form {
                flex-direction: column;
            }

            .brand-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .brand-filter-bar {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }

            .brand-filter-btn {
                flex-shrink: 0;
            }
        }

        @media (max-width: 520px) {
            .brand-stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .brand-stat-card {
                padding: 12px;
            }

            .brand-stat-value {
                font-size: 18px;
            }

            .brand-section-heading {
                font-size: 19px;
            }

            .brand-container {
                padding: 0 16px;
            }

            .brand-list-item-thumb {
                height: 140px;
            }

            .brand-card {
                padding: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #1E3A39;
            --brand-secondary: #C9792E;
            --brand-bg: #F5F3EF;
            --brand-card: #FFFFFF;
            --brand-border: #E7E2D9;
            --brand-text: #212529;
            --brand-muted: #6C757D;
            --brand-success: #2E7D6F;
            --brand-alert: #A94438;
            --brand-footer-bg: #182B2A;
            --brand-radius-sm: 6px;
            --brand-radius: 8px;
            --brand-radius-md: 12px;
            --brand-radius-lg: 16px;
            --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
            --brand-transition: all 0.22s ease;
            --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --brand-navbar-width: 260px;
            --brand-navbar-collapsed: 220px;
            --brand-section-padding: 64px;
            --brand-card-padding: 22px;
        }

        @media (max-width: 1199.98px) {
            :root {
                --brand-navbar-width: 220px;
                --brand-section-padding: 48px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --brand-section-padding: 40px;
                --brand-card-padding: 18px;
            }
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--brand-font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        a:hover {
            color: var(--brand-secondary);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
            border-radius: var(--brand-radius);
        }

        /* ========== 左侧竖向导航（桌面端） ========== */
        .brand-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--brand-navbar-width);
            background: var(--brand-primary);
            color: #f0f4f3;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s ease, width 0.25s ease;
        }
        .brand-sidebar .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 18px 20px;
        }
        .brand-sidebar .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 20px;
            flex-shrink: 0;
        }
        .brand-sidebar .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .brand-sidebar .sidebar-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .brand-sidebar .sidebar-logo .logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            line-height: 1.2;
            margin-top: 2px;
        }
        .brand-sidebar .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }
        .brand-sidebar .sidebar-nav li {
            margin-bottom: 6px;
        }
        .brand-sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            position: relative;
        }
        .brand-sidebar .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .brand-sidebar .sidebar-nav a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }
        .brand-sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--brand-secondary);
            border-radius: 2px;
        }
        .brand-sidebar .sidebar-nav a .nav-indicator {
            font-size: 14px;
            opacity: 0.7;
        }
        .brand-sidebar .sidebar-bottom {
            flex-shrink: 0;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .brand-sidebar .sidebar-bottom a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            font-size: 14px;
            transition: var(--brand-transition);
        }
        .brand-sidebar .sidebar-bottom a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* ========== 移动端顶部导航 ========== */
        .brand-mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--brand-primary);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            z-index: 1050;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }
        .brand-mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }
        .brand-mobile-nav .mobile-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .brand-mobile-nav .navbar-toggler {
            background: none;
            border: none;
            color: #fff;
            font-size: 26px;
            cursor: pointer;
            padding: 8px;
            transition: var(--brand-transition);
            line-height: 1;
            min-width: 44px;
            min-height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .brand-mobile-nav .navbar-toggler:hover {
            color: var(--brand-secondary);
        }
        .brand-mobile-menu {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: var(--brand-bg);
            padding: 16px 20px 24px;
            z-index: 1049;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
            max-height: calc(100vh - 60px);
            overflow-y: auto;
        }
        .brand-mobile-menu.open {
            display: block;
        }
        .brand-mobile-menu .mobile-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .brand-mobile-menu .mobile-nav-list li {
            margin-bottom: 4px;
        }
        .brand-mobile-menu .mobile-nav-list a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--brand-radius);
            color: var(--brand-text);
            font-weight: 500;
            font-size: 15px;
            transition: var(--brand-transition);
        }
        .brand-mobile-menu .mobile-nav-list a:hover {
            background: rgba(30, 58, 57, 0.06);
            color: var(--brand-primary);
        }
        .brand-mobile-menu .mobile-nav-list a.active {
            background: rgba(201, 121, 46, 0.14);
            color: var(--brand-primary);
            font-weight: 600;
            border-left: 3px solid var(--brand-secondary);
        }
        .brand-mobile-menu .mobile-menu-bottom {
            margin-top: 12px;
            padding-top: 16px;
            border-top: 1px solid var(--brand-border);
        }
        .brand-mobile-menu .mobile-menu-bottom a {
            display: block;
            padding: 10px 16px;
            color: var(--brand-muted);
            font-size: 14px;
            border-radius: var(--brand-radius);
            transition: var(--brand-transition);
        }
        .brand-mobile-menu .mobile-menu-bottom a:hover {
            background: rgba(30, 58, 57, 0.06);
            color: var(--brand-primary);
        }

        @media (max-width: 991.98px) {
            .brand-sidebar {
                display: none;
            }
            .brand-mobile-nav {
                display: flex;
            }
        }

        /* ========== 主内容区 ========== */
        .brand-main {
            margin-left: var(--brand-navbar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        @media (max-width: 1199.98px) {
            .brand-main {
                margin-left: var(--brand-navbar-collapsed);
            }
        }
        @media (max-width: 991.98px) {
            .brand-main {
                margin-left: 0;
                padding-top: 60px;
            }
        }

        /* ========== 通用板块样式 ========== */
        .brand-section {
            padding: var(--brand-section-padding) 24px;
        }
        @media (min-width: 768px) {
            .brand-section {
                padding-left: 40px;
                padding-right: 40px;
            }
        }
        @media (min-width: 1200px) {
            .brand-section {
                padding-left: 56px;
                padding-right: 56px;
            }
        }
        .brand-section-alt {
            background: #fff;
        }
        .brand-section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .brand-section-subtitle {
            font-size: 15px;
            color: var(--brand-muted);
            margin-bottom: 32px;
            max-width: 720px;
            line-height: 1.6;
        }

        /* ========== 分类H1板块 ========== */
        .category-hero {
            background: linear-gradient(135deg, var(--brand-primary) 0%, #2a4e4c 100%);
            color: #fff;
            padding: 56px 40px 48px;
            border-radius: var(--brand-radius-lg);
            margin-bottom: 0;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: rgba(201, 121, 46, 0.18);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .category-hero-inner {
            position: relative;
            z-index: 1;
        }
        .category-hero .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201, 121, 46, 0.25);
            color: #f0cfa0;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: 0.5px;
        }
        @media (max-width: 767.98px) {
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero {
                padding: 36px 24px 32px;
            }
        }
        .category-hero .category-hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 760px;
            margin-bottom: 0;
        }

        /* ========== 列表/卡片主体 ========== */
        .news-list-section {
            padding-top: 40px;
        }
        .news-list-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
        }
        @media (max-width: 991.98px) {
            .news-list-layout {
                grid-template-columns: 1fr;
            }
        }
        .news-list-main {
            min-width: 0;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--brand-border);
            transition: var(--brand-transition);
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:hover {
            border-bottom-color: var(--brand-primary);
        }
        .news-item .news-item-image {
            flex-shrink: 0;
            width: 200px;
            height: 130px;
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            background: #EDE9E2;
        }
        .news-item .news-item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-item:hover .news-item-image img {
            transform: scale(1.04);
        }
        .news-item .news-item-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 8px;
            font-size: 13px;
            color: var(--brand-muted);
        }
        .news-item .news-item-tag {
            display: inline-block;
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 100px;
            letter-spacing: 0.3px;
        }
        .news-item .news-item-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 6px;
            line-height: 1.4;
            display: block;
            transition: color 0.2s ease;
        }
        .news-item:hover .news-item-title {
            color: var(--brand-primary);
        }
        .news-item .news-item-excerpt {
            font-size: 14px;
            color: var(--brand-muted);
            margin-bottom: 0;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 767.98px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item .news-item-image {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }
        }

        /* 筛选栏 */
        .news-filter-panel {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 24px;
            position: sticky;
            top: 24px;
            height: fit-content;
        }
        .news-filter-panel .filter-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 20px;
        }
        .news-filter-panel .filter-group {
            margin-bottom: 20px;
        }
        .news-filter-panel .filter-group:last-child {
            margin-bottom: 0;
        }
        .news-filter-panel .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-muted);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }
        .news-filter-panel .filter-options {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .news-filter-panel .filter-option {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 12px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-text);
            transition: var(--brand-transition);
            user-select: none;
        }
        .news-filter-panel .filter-option:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        .news-filter-panel .filter-option.active {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
        }
        .news-filter-panel .filter-option .filter-count {
            font-size: 11px;
            opacity: 0.7;
        }
        .news-filter-panel .filter-search {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            font-size: 14px;
            background: #fff;
            color: var(--brand-text);
            transition: var(--brand-transition);
        }
        .news-filter-panel .filter-search:focus {
            border-color: var(--brand-primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 58, 57, 0.08);
        }
        .news-filter-panel .filter-search::placeholder {
            color: #adb5bd;
        }

        .view-more-wrap {
            text-align: center;
            padding-top: 28px;
        }
        .btn-brand-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
            border-radius: var(--brand-radius);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--brand-transition);
            cursor: pointer;
            min-height: 44px;
        }
        .btn-brand-outline:hover {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }
        .btn-brand-outline:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
        }

        /* ========== 热度排行板块 ========== */
        .ranking-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        @media (max-width: 767.98px) {
            .ranking-list {
                grid-template-columns: 1fr;
            }
        }
        .ranking-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: var(--brand-transition);
        }
        .ranking-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
        }
        .ranking-card .rank-number {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }
        .ranking-card .rank-number.rank-top1 {
            background: var(--brand-secondary);
        }
        .ranking-card .rank-number.rank-top2 {
            background: #3e6b68;
        }
        .ranking-card .rank-number.rank-top3 {
            background: #5a7d7a;
        }
        .ranking-card .rank-body {
            flex: 1;
            min-width: 0;
        }
        .ranking-card .rank-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: block;
        }
        .ranking-card:hover .rank-title {
            color: var(--brand-primary);
        }
        .ranking-card .rank-meta {
            font-size: 13px;
            color: var(--brand-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .ranking-card .rank-trend {
            font-weight: 600;
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 100px;
        }
        .rank-trend.up {
            background: rgba(46, 125, 111, 0.12);
            color: var(--brand-success);
        }
        .rank-trend.hot {
            background: rgba(201, 121, 46, 0.12);
            color: var(--brand-secondary);
        }

        /* ========== 精选专题卡片 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 991.98px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767.98px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }
        .topic-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            transition: var(--brand-transition);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
            transform: translateY(-2px);
        }
        .topic-card .topic-card-image {
            width: 100%;
            aspect-ratio: 3/2;
            overflow: hidden;
            background: #EDE9E2;
        }
        .topic-card .topic-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-card-image img {
            transform: scale(1.05);
        }
        .topic-card .topic-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .topic-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .topic-card:hover .topic-card-title {
            color: var(--brand-primary);
        }
        .topic-card .topic-card-desc {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .topic-card .topic-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--brand-transition);
        }
        .topic-card .topic-card-link:hover {
            color: var(--brand-primary);
            gap: 8px;
        }

        /* ========== 数据快照 ========== */
        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 991.98px) {
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575.98px) {
            .data-snapshot-grid {
                grid-template-columns: 1fr;
            }
        }
        .data-snapshot-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--brand-transition);
        }
        .data-snapshot-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
        }
        .data-snapshot-card .snapshot-value {
            font-size: 34px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .data-snapshot-card .snapshot-unit {
            font-size: 14px;
            color: var(--brand-muted);
            font-weight: 400;
        }
        .data-snapshot-card .snapshot-label {
            font-size: 14px;
            color: var(--brand-muted);
            font-weight: 500;
            margin-top: 4px;
        }
        .data-snapshot-card .snapshot-trend {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 100px;
            margin-top: 10px;
            background: rgba(46, 125, 111, 0.12);
            color: var(--brand-success);
        }

        /* ========== FAQ样式 ========== */
        .faq-list .accordion-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            margin-bottom: 12px;
            background: var(--brand-card);
            overflow: hidden;
            transition: var(--brand-transition);
        }
        .faq-list .accordion-item:last-child {
            margin-bottom: 0;
        }
        .faq-list .accordion-header {
            margin: 0;
        }
        .faq-list .accordion-button {
            background: var(--brand-card);
            color: var(--brand-text);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            border: none;
            border-radius: 0;
            box-shadow: none;
            gap: 12px;
            cursor: pointer;
            transition: var(--brand-transition);
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 52px;
        }
        .faq-list .accordion-button:not(.collapsed) {
            background: var(--brand-card);
            color: var(--brand-primary);
            border-left: 4px solid var(--brand-secondary);
            padding-left: 16px;
        }
        .faq-list .accordion-button:hover {
            background: rgba(30, 58, 57, 0.04);
        }
        .faq-list .accordion-button:focus {
            outline: none;
            box-shadow: none;
        }
        .faq-list .accordion-button .faq-q-mark {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: rgba(30, 58, 57, 0.10);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .faq-list .accordion-button .faq-toggle-icon {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--brand-muted);
            transition: transform 0.25s ease;
        }
        .faq-list .accordion-button:not(.collapsed) .faq-toggle-icon {
            transform: rotate(45deg);
            color: var(--brand-primary);
        }
        .faq-list .accordion-collapse {
            border-top: 1px solid var(--brand-border);
        }
        .faq-list .accordion-body {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            background: #faf9f7;
            border-left: 4px solid transparent;
        }
        .faq-list .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body {
            border-left-color: var(--brand-secondary);
        }

        /* ========== CTA/订阅板块 ========== */
        .subscribe-cta-section {
            background: var(--brand-primary);
            border-radius: var(--brand-radius-lg);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .subscribe-cta-section::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 200px;
            height: 200px;
            background: rgba(201, 121, 46, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }
        .subscribe-cta-section .cta-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        @media (max-width: 991.98px) {
            .subscribe-cta-section .cta-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .subscribe-cta-section .cta-title {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .subscribe-cta-section .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .subscribe-cta-section .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .subscribe-cta-section .cta-form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--brand-radius);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 15px;
            transition: var(--brand-transition);
        }
        .subscribe-cta-section .cta-form-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-cta-section .cta-form-input:focus {
            border-color: var(--brand-secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 121, 46, 0.2);
            background: rgba(255, 255, 255, 0.15);
        }
        .subscribe-cta-section .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-secondary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--brand-transition);
            min-height: 48px;
            letter-spacing: 0.3px;
        }
        .subscribe-cta-section .btn-cta-secondary:hover {
            background: #b56a26;
            color: #fff;
        }
        .subscribe-cta-section .btn-cta-secondary:focus-visible {
            outline: 4px solid rgba(201, 121, 46, 0.4);
            outline-offset: 2px;
        }

        /* ========== 页脚 ========== */
        .brand-footer {
            background: var(--brand-footer-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 40px 24px;
            margin-top: auto;
        }
        @media (max-width: 767.98px) {
            .brand-footer {
                padding: 32px 20px 20px;
            }
        }
        .brand-footer .footer-brand {
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }
        .brand-footer .footer-brand-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
            margin-bottom: 0;
        }
        .brand-footer .footer-heading {
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .brand-footer .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .brand-footer .footer-links li {
            margin-bottom: 8px;
        }
        .brand-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--brand-transition);
        }
        .brand-footer .footer-links a:hover {
            color: var(--brand-secondary);
        }
        .brand-footer .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .brand-footer .subscribe-form {
            display: flex;
            gap: 8px;
            max-width: 320px;
        }
        .brand-footer .subscribe-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--brand-radius);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            transition: var(--brand-transition);
            min-width: 0;
        }
        .brand-footer .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .brand-footer .subscribe-form input:focus {
            border-color: var(--brand-secondary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(201, 121, 46, 0.18);
        }
        .brand-footer .subscribe-form button {
            background: var(--brand-secondary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 10px 18px;
            font-weight: 600;
            font-size: 13px;
            cursor: pointer;
            transition: var(--brand-transition);
            white-space: nowrap;
            min-height: 44px;
        }
        .brand-footer .subscribe-form button:hover {
            background: #b56a26;
        }
        .brand-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .brand-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--brand-transition);
        }
        .brand-footer .footer-bottom a:hover {
            color: var(--brand-secondary);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 20px 40px 0;
            background: transparent;
            font-size: 14px;
            color: var(--brand-muted);
        }
        .breadcrumb-bar a {
            color: var(--brand-primary);
            font-weight: 500;
        }
        .breadcrumb-bar a:hover {
            color: var(--brand-secondary);
        }
        .breadcrumb-bar .breadcrumb-separator {
            margin: 0 8px;
            color: #adb5bd;
        }
        @media (max-width: 767.98px) {
            .breadcrumb-bar {
                padding: 16px 20px 0;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
      --brand-primary: #1E3A39;
      --brand-secondary: #C9792E;
      --brand-bg: #F5F3EF;
      --brand-card: #FFFFFF;
      --brand-border: #E7E2D9;
      --brand-text: #212529;
      --brand-muted: #6C757D;
      --brand-success: #2E7D6F;
      --brand-alert: #A94438;
      --brand-footer-bg: #182B2A;
      --brand-radius-sm: 6px;
      --brand-radius: 8px;
      --brand-radius-md: 12px;
      --brand-radius-lg: 16px;
      --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
      --brand-transition: all 0.22s ease;
      --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --brand-navbar-width: 260px;
      --brand-navbar-collapsed: 220px;
      --brand-section-padding: 64px;
      --brand-card-padding: 22px;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--brand-font-stack);
      font-size: 16px;
      line-height: 1.7;
      color: var(--brand-text);
      background-color: var(--brand-bg);
      margin: 0;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      text-decoration: none;
      color: var(--brand-primary);
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }
    a:hover {
      color: var(--brand-secondary);
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
    }
    .btn:focus-visible,
    a:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible {
      outline: 4px solid rgba(30, 58, 57, 0.20);
      outline-offset: 2px;
      border-radius: var(--brand-radius);
    }
    /* ========== 左侧竖向导航（桌面端） ========== */
    .brand-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--brand-navbar-width);
      background: var(--brand-primary);
      color: #f0f4f3;
      display: flex;
      flex-direction: column;
      z-index: 1040;
      overflow-y: auto;
      overflow-x: hidden;
      box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
      transition: transform 0.25s ease, width 0.25s ease;
    }
    .brand-sidebar .sidebar-inner {
      display: flex;
      flex-direction: column;
      height: 100%;
      padding: 24px 18px 20px;
    }
    .brand-sidebar .sidebar-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 0 6px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
      margin-bottom: 20px;
      flex-shrink: 0;
    }
    .brand-sidebar .sidebar-logo .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--brand-secondary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 18px;
      letter-spacing: 0;
      flex-shrink: 0;
    }
    .brand-sidebar .sidebar-logo .logo-text {
      font-weight: 700;
      font-size: 20px;
      color: #ffffff;
      letter-spacing: 0.5px;
      line-height: 1.2;
    }
    .brand-sidebar .sidebar-logo .logo-sub {
      font-size: 11px;
      color: rgba(255, 255, 255, 0.65);
      letter-spacing: 1.5px;
      line-height: 1.2;
      margin-top: 2px;
    }
    .brand-sidebar .sidebar-nav {
      list-style: none;
      margin: 0;
      padding: 0;
      flex: 1;
    }
    .brand-sidebar .sidebar-nav li {
      margin-bottom: 6px;
    }
    .brand-sidebar .sidebar-nav a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 14px;
      border-radius: var(--brand-radius);
      color: rgba(255, 255, 255, 0.82);
      font-weight: 500;
      font-size: 15px;
      letter-spacing: 0.3px;
      transition: var(--brand-transition);
      position: relative;
    }
    .brand-sidebar .sidebar-nav a:hover {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
    }
    .brand-sidebar .sidebar-nav a.active {
      background: rgba(201, 121, 46, 0.18);
      color: #fff;
      font-weight: 600;
    }
    .brand-sidebar .sidebar-nav a.active::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 24px;
      background: var(--brand-secondary);
      border-radius: 2px;
    }
    .brand-sidebar .sidebar-nav a .nav-indicator {
      font-size: 14px;
      opacity: 0.7;
    }
    .brand-sidebar .sidebar-bottom {
      flex-shrink: 0;
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .brand-sidebar .sidebar-bottom a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 14px;
      border-radius: var(--brand-radius);
      color: rgba(255, 255, 255, 0.82);
      font-size: 14px;
      transition: var(--brand-transition);
    }
    .brand-sidebar .sidebar-bottom a:hover {
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
    }
    /* ========== 主内容区域 ========== */
    .brand-main {
      margin-left: var(--brand-navbar-width);
      min-height: 100vh;
      background-color: var(--brand-bg);
    }
    .brand-container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .section-block {
      padding: var(--brand-section-padding) 0;
    }
    .section-block + .section-block {
      border-top: 1px solid var(--brand-border);
    }
    .section-head {
      margin-bottom: 32px;
    }
    .section-head h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--brand-primary);
      margin-bottom: 8px;
      letter-spacing: 0.3px;
    }
    .section-head p {
      color: var(--brand-muted);
      font-size: 16px;
      margin: 0;
      max-width: 680px;
    }
    /* ========== 移动端顶部导航 ========== */
    .brand-mobile-nav {
      display: none;
      background: var(--brand-primary);
      padding: 12px 16px;
      align-items: center;
      justify-content: space-between;
      position: sticky;
      top: 0;
      z-index: 1050;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }
    .brand-mobile-nav .mobile-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 700;
      font-size: 18px;
    }
    .brand-mobile-nav .logo-mark {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--brand-secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      color: #fff;
    }
    .brand-mobile-nav .navbar-toggler {
      background: transparent;
      border: none;
      color: #fff;
      font-size: 24px;
      padding: 6px 10px;
      cursor: pointer;
      line-height: 1;
    }
    .mobile-menu {
      background: var(--brand-bg);
      border-top: 1px solid var(--brand-border);
      display: none;
      position: fixed;
      top: 56px;
      left: 0;
      right: 0;
      z-index: 1045;
      box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    }
    .mobile-menu.show {
      display: block;
    }
    .mobile-menu ul {
      list-style: none;
      padding: 12px 16px;
      margin: 0;
    }
    .mobile-menu li a {
      display: block;
      padding: 12px 8px;
      color: var(--brand-text);
      font-weight: 500;
      border-radius: var(--brand-radius);
      transition: background 0.2s ease;
    }
    .mobile-menu li a:hover,
    .mobile-menu li a.active {
      background: rgba(30, 58, 57, 0.08);
      color: var(--brand-primary);
    }
    .mobile-menu li a.active {
      font-weight: 600;
      border-left: 4px solid var(--brand-secondary);
    }
    /* ========== 分类 Hero ========== */
    .category-hero {
      padding: 48px 0 32px;
      background: #fff;
      border-bottom: 1px solid var(--brand-border);
    }
    .category-hero .category-title {
      font-size: 36px;
      font-weight: 700;
      color: var(--brand-primary);
      margin-bottom: 12px;
    }
    .category-hero .category-lead {
      font-size: 18px;
      color: var(--brand-muted);
      max-width: 800px;
      line-height: 1.8;
    }
    .category-hero-stat {
      text-align: center;
      padding: 24px;
      background: var(--brand-bg);
      border-radius: var(--brand-radius-md);
      border: 1px solid var(--brand-border);
    }
    .category-hero-stat .stat-num {
      display: block;
      font-size: 40px;
      font-weight: 700;
      color: var(--brand-secondary);
      line-height: 1.2;
    }
    .category-hero-stat .stat-label {
      font-size: 14px;
      color: var(--brand-muted);
    }
    /* ========== 专题精选主体 ========== */
    .featured-topics {
      background: var(--brand-bg);
    }
    .featured-main-card {
      background: var(--brand-card);
      border: 1px solid var(--brand-border);
      border-radius: var(--brand-radius-lg);
      overflow: hidden;
      transition: var(--brand-transition);
      display: flex;
      flex-direction: column;
    }
    .featured-main-card:hover {
      border-color: var(--brand-primary);
      box-shadow: var(--brand-shadow);
    }
    .featured-img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      border-bottom: 1px solid var(--brand-border);
    }
    @media (min-width: 768px) {
      .featured-main-card {
        flex-direction: row;
      }
      .featured-img {
        width: 45%;
        height: auto;
        border-bottom: none;
        border-right: 1px solid var(--brand-border);
      }
      .featured-content {
        width: 55%;
      }
    }
    .featured-content {
      padding: 24px;
    }
    .badge-brand {
      display: inline-block;
      background: rgba(201, 121, 46, 0.12);
      color: var(--brand-secondary);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 20px;
      margin-bottom: 8px;
    }
    .featured-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--brand-text);
      line-height: 1.4;
      margin-bottom: 8px;
    }
    .featured-content p {
      color: var(--brand-muted);
      font-size: 15px;
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .meta-row {
      display: flex;
      gap: 16px;
      font-size: 14px;
      color: var(--brand-muted);
      margin-bottom: 16px;
    }
    .btn-primary {
      background: var(--brand-primary);
      border: 1px solid var(--brand-primary);
      color: #fff;
      border-radius: var(--brand-radius);
      padding: 10px 20px;
      font-weight: 600;
      font-size: 15px;
      transition: var(--brand-transition);
    }
    .btn-primary:hover {
      background: #172e2c;
      border-color: #172e2c;
      color: #fff;
    }
    .btn-primary:active {
      box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
    }
    .btn-secondary {
      background: transparent;
      border: 1px solid var(--brand-primary);
      color: var(--brand-primary);
      border-radius: var(--brand-radius);
      padding: 10px 20px;
      font-weight: 600;
      font-size: 15px;
      transition: var(--brand-transition);
    }
    .btn-secondary:hover {
      background: rgba(30, 58, 57, 0.08);
      border-color: var(--brand-primary);
      color: var(--brand-primary);
    }
    .btn-secondary:active {
      background: rgba(30, 58, 57, 0.15);
    }
    .topic-list {
      margin-top: 24px;
    }
    .topic-item {
      background: var(--brand-card);
      border: 1px solid var(--brand-border);
      border-radius: var(--brand-radius-md);
      padding: 18px 20px;
      margin-bottom: 14px;
      transition: var(--brand-transition);
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .topic-item:hover {
      border-color: var(--brand-primary);
      box-shadow: 0 4px 12px rgba(30, 58, 57, 0.08);
    }
    .topic-item.with-thumb .topic-thumb {
      width: 120px;
      height: 80px;
      object-fit: cover;
      border-radius: var(--brand-radius-sm);
      flex-shrink: 0;
    }
    .topic-item-body {
      flex: 1;
    }
    .topic-item-body h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--brand-text);
      line-height: 1.5;
      margin-bottom: 4px;
    }
    .topic-item-body p {
      color: var(--brand-muted);
      font-size: 14px;
      line-height: 1.6;
      margin-bottom: 8px;
    }
    .topic-item .meta-row {
      font-size: 13px;
      gap: 12px;
      margin-bottom: 0;
    }
    .text-center {
      text-align: center;
    }
    .mt-4 {
      margin-top: 24px !important;
    }
    /* ========== 热读排行 ========== */
    .hot-list {
      background: #fff;
    }
    .rank-list {
      list-style: none;
      padding: 0;
      margin: 0;
      counter-reset: rank;
    }
    .rank-list li {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 14px 0;
      border-bottom: 1px solid var(--brand-border);
      counter-increment: rank;
    }
    .rank-list li:last-child {
      border-bottom: none;
    }
    .rank-num {
      font-size: 20px;
      font-weight: 700;
      color: var(--brand-secondary);
      min-width: 36px;
      text-align: center;
    }
    .rank-list a {
      flex: 1;
      color: var(--brand-text);
      font-weight: 500;
      font-size: 16px;
      transition: color 0.2s ease;
    }
    .rank-list a:hover {
      color: var(--brand-primary);
    }
    .rank-meta {
      font-size: 14px;
      color: var(--brand-muted);
      white-space: nowrap;
    }
    /* ========== 数据快照 ========== */
    .data-snapshot {
      background: var(--brand-bg);
    }
    .snapshot-stats {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
      margin-top: 24px;
    }
    .snapshot-stats .stat {
      flex: 1 0 100px;
      background: var(--brand-card);
      border: 1px solid var(--brand-border);
      border-radius: var(--brand-radius-md);
      padding: 18px 16px;
      text-align: center;
    }
    .snapshot-stats .stat span:first-child {
      display: block;
      font-size: 28px;
      font-weight: 700;
      color: var(--brand-primary);
      line-height: 1.3;
    }
    .snapshot-stats .stat span:last-child {
      font-size: 14px;
      color: var(--brand-muted);
    }
    .snapshot-img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      border-radius: var(--brand-radius-lg);
      border: 1px solid var(--brand-border);
    }
    /* ========== 栏目矩阵 ========== */
    .category-links {
      background: #fff;
    }
    .link-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
      gap: 16px;
    }
    .link-card {
      background: var(--brand-card);
      border: 1px solid var(--brand-border);
      border-radius: var(--brand-radius-md);
      padding: 18px;
      text-align: center;
      font-weight: 600;
      color: var(--brand-primary);
      transition: var(--brand-transition);
    }
    .link-card:hover {
      border-color: var(--brand-primary);
      box-shadow: 0 4px 12px rgba(30, 58, 57, 0.08);
      transform: translateY(-2px);
    }
    /* ========== 订阅CTA ========== */
    .subscribe-cta {
      background: var(--brand-primary);
      color: #fff;
      border-top: none;
    }
    .subscribe-cta .cta-inner {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
    }
    .subscribe-cta h2 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .subscribe-cta p {
      color: rgba(255,255,255,0.85);
      margin-bottom: 24px;
    }
    .cta-form {
      display: flex;
      gap: 12px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .cta-form input[type="email"] {
      flex: 1;
      max-width: 360px;
      min-width: 220px;
      padding: 12px 16px;
      border: 1px solid rgba(255,255,255,0.4);
      border-radius: var(--brand-radius);
      background: #fff;
      color: var(--brand-text);
      font-size: 15px;
    }
    .cta-form input[type="email"]::placeholder {
      color: #9aa0a6;
    }
    .subscribe-cta .btn-secondary {
      background: var(--brand-secondary);
      border: 1px solid var(--brand-secondary);
      color: #fff;
    }
    .subscribe-cta .btn-secondary:hover {
      background: #b06a22;
      border-color: #b06a22;
    }
    /* ========== 页脚 ========== */
    .brand-footer {
      background: var(--brand-footer-bg);
      color: rgba(255,255,255,0.8);
      padding: 48px 0 24px;
      margin-left: var(--brand-navbar-width);
      font-size: 14px;
    }
    .brand-footer .brand-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .footer-brand {
      font-size: 22px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .footer-brand-desc {
      font-size: 14px;
      color: rgba(255,255,255,0.7);
      margin-bottom: 0;
    }
    .footer-heading {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: rgba(255,255,255,0.75);
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-subscribe p {
      color: rgba(255,255,255,0.75);
      margin-bottom: 12px;
    }
    .subscribe-form {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    .subscribe-form input {
      flex: 1;
      min-width: 140px;
      padding: 8px 12px;
      border: 1px solid rgba(255,255,255,0.3);
      border-radius: var(--brand-radius);
      background: transparent;
      color: #fff;
    }
    .subscribe-form input::placeholder {
      color: rgba(255,255,255,0.5);
    }
    .subscribe-form button {
      background: var(--brand-secondary);
      border: none;
      color: #fff;
      padding: 8px 16px;
      border-radius: var(--brand-radius);
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s ease;
    }
    .subscribe-form button:hover {
      background: #b06a22;
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      justify-content: space-between;
      margin-top: 32px;
      padding-top: 16px;
      border-top: 1px solid rgba(255,255,255,0.15);
      font-size: 13px;
      color: rgba(255,255,255,0.65);
    }
    .footer-bottom a {
      color: rgba(255,255,255,0.65);
      margin: 0 4px;
    }
    .footer-bottom a:hover {
      color: #fff;
    }
    /* ========== 响应式 ========== */
    @media (max-width: 1200px) {
      :root {
        --brand-navbar-width: 220px;
        --brand-section-padding: 48px;
      }
      .brand-main {
        margin-left: var(--brand-navbar-width);
      }
      .brand-footer {
        margin-left: var(--brand-navbar-width);
      }
    }
    @media (max-width: 992px) {
      .brand-sidebar {
        display: none;
      }
      .brand-mobile-nav {
        display: flex;
      }
      .brand-main {
        margin-left: 0;
      }
      .brand-footer {
        margin-left: 0;
      }
      .category-hero {
        padding: 32px 0 24px;
      }
      .category-hero .category-title {
        font-size: 28px;
      }
    }
    @media (max-width: 767px) {
      :root {
        --brand-section-padding: 40px;
        --brand-card-padding: 18px;
      }
      .brand-container {
        padding-left: 16px;
        padding-right: 16px;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .featured-img {
        height: 200px;
      }
      .featured-content {
        padding: 18px;
      }
      .featured-content h3 {
        font-size: 19px;
      }
      .topic-item {
        padding: 14px;
      }
      .topic-item.with-thumb {
        flex-direction: column;
      }
      .topic-item.with-thumb .topic-thumb {
        width: 100%;
        height: 160px;
      }
      .snapshot-stats {
        gap: 12px;
      }
      .snapshot-stats .stat {
        flex: 1 0 80px;
        padding: 12px 10px;
      }
      .link-grid {
        grid-template-columns: 1fr 1fr;
      }
      .cta-form {
        flex-direction: column;
        align-items: center;
      }
      .cta-form input[type="email"] {
        width: 100%;
        max-width: 100%;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
    }
    @media (max-width: 520px) {
      .category-hero .category-title {
        font-size: 24px;
      }
      .category-hero .category-lead {
        font-size: 15px;
      }
      .link-grid {
        grid-template-columns: 1fr;
      }
      .rank-list li {
        flex-wrap: wrap;
        gap: 8px;
      }
      .rank-list a {
        font-size: 15px;
        flex-basis: 100%;
        order: 2;
      }
      .rank-list .rank-num {
        order: 1;
      }
      .rank-list .rank-meta {
        order: 3;
      }
    }

/* roulang page: category4 */
:root {
            --brand-primary: #1E3A39;
            --brand-secondary: #C9792E;
            --brand-bg: #F5F3EF;
            --brand-card: #FFFFFF;
            --brand-border: #E7E2D9;
            --brand-text: #212529;
            --brand-muted: #6C757D;
            --brand-success: #2E7D6F;
            --brand-alert: #A94438;
            --brand-footer-bg: #182B2A;
            --brand-radius-sm: 6px;
            --brand-radius: 8px;
            --brand-radius-md: 12px;
            --brand-radius-lg: 16px;
            --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
            --brand-transition: all 0.22s ease;
            --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --brand-navbar-width: 260px;
            --brand-navbar-collapsed: 220px;
            --brand-section-padding: 64px;
            --brand-card-padding: 22px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--brand-font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        a:hover {
            color: var(--brand-secondary);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
            border-radius: var(--brand-radius);
        }
        .brand-container {
            width: 100%;
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .brand-main {
            margin-left: var(--brand-navbar-width);
            min-height: 100vh;
        }
        .brand-section {
            padding-top: var(--brand-section-padding);
            padding-bottom: var(--brand-section-padding);
        }
        .brand-section-alt {
            background: #fff;
        }
        .brand-section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .brand-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: var(--brand-card-padding);
            transition: var(--brand-transition);
            height: 100%;
        }
        .brand-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
            transform: translateY(-2px);
        }
        .brand-card-flat {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: var(--brand-card-padding);
            transition: var(--brand-transition);
            height: 100%;
        }
        .brand-card-flat:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
        }
        .brand-chip {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            border: 1px solid rgba(30, 58, 57, 0.12);
        }
        .brand-chip-secondary {
            background: rgba(201, 121, 46, 0.10);
            color: var(--brand-secondary);
            border-color: rgba(201, 121, 46, 0.20);
        }
        .brand-chip-success {
            background: rgba(46, 125, 111, 0.10);
            color: var(--brand-success);
            border-color: rgba(46, 125, 111, 0.18);
        }
        .brand-btn-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            transition: var(--brand-transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
            font-size: 15px;
        }
        .brand-btn-primary:hover {
            background: #162e2c;
            color: #fff;
            box-shadow: 0 6px 18px rgba(30, 58, 57, 0.18);
            transform: translateY(-1px);
        }
        .brand-btn-primary:active {
            box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.15);
            transform: translateY(0);
        }
        .brand-btn-secondary {
            background: transparent;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            transition: var(--brand-transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
            font-size: 15px;
        }
        .brand-btn-secondary:hover {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
        }
        .brand-btn-accent {
            background: var(--brand-secondary);
            color: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            transition: var(--brand-transition);
            display: inline-block;
            text-align: center;
            cursor: pointer;
            font-size: 15px;
        }
        .brand-btn-accent:hover {
            background: #a96424;
            color: #fff;
            box-shadow: 0 6px 18px rgba(201, 121, 46, 0.25);
            transform: translateY(-1px);
        }
        /* 左侧竖向导航 */
        .brand-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--brand-navbar-width);
            background: var(--brand-primary);
            color: #f0f4f3;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s ease, width 0.25s ease;
        }
        .brand-sidebar .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 18px 20px;
        }
        .brand-sidebar .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 20px;
            flex-shrink: 0;
        }
        .brand-sidebar .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .brand-sidebar .sidebar-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .brand-sidebar .sidebar-logo .logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            line-height: 1.2;
            margin-top: 2px;
        }
        .brand-sidebar .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }
        .brand-sidebar .sidebar-nav li {
            margin-bottom: 6px;
        }
        .brand-sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            position: relative;
        }
        .brand-sidebar .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .brand-sidebar .sidebar-nav a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }
        .brand-sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--brand-secondary);
            border-radius: 2px;
        }
        .brand-sidebar .sidebar-bottom {
            flex-shrink: 0;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .brand-sidebar .sidebar-bottom a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: var(--brand-transition);
        }
        .brand-sidebar .sidebar-bottom a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        /* 移动端顶部导航 */
        .brand-mobile-nav {
            display: none;
            background: var(--brand-primary);
            color: #fff;
            padding: 12px 16px;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
        }
        .brand-mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }
        .brand-mobile-nav .navbar-toggler {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            border-radius: var(--brand-radius);
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }
        .brand-mobile-menu {
            display: none;
            background: var(--brand-bg);
            border-bottom: 1px solid var(--brand-border);
            position: sticky;
            top: 68px;
            z-index: 1049;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .brand-mobile-menu.open {
            max-height: 500px;
            overflow-y: auto;
        }
        .brand-mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 12px 16px;
        }
        .brand-mobile-menu li {
            margin-bottom: 4px;
        }
        .brand-mobile-menu a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            border-radius: var(--brand-radius);
            color: var(--brand-text);
            font-weight: 500;
            font-size: 15px;
            transition: var(--brand-transition);
        }
        .brand-mobile-menu a:hover,
        .brand-mobile-menu a.active {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
        }
        .brand-mobile-menu a.active {
            border-left: 4px solid var(--brand-secondary);
            font-weight: 600;
        }
        /* 页面特有样式 */
        .cat-hero {
            background: linear-gradient(135deg, var(--brand-primary) 0%, #2a504d 100%);
            color: #fff;
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }
        .cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .cat-hero .cat-hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            line-height: 1.75;
        }
        .cat-hero .hero-tag {
            display: inline-block;
            background: rgba(201, 121, 46, 0.25);
            border: 1px solid rgba(201, 121, 46, 0.45);
            color: #eab87f;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .data-stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -28px;
            position: relative;
            z-index: 2;
        }
        .data-stat-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            transition: var(--brand-transition);
        }
        .data-stat-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-2px);
        }
        .data-stat-card .stat-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .data-stat-card .stat-value .stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--brand-muted);
        }
        .data-stat-card .stat-label {
            font-size: 14px;
            color: var(--brand-muted);
            margin-top: 4px;
            font-weight: 500;
        }
        .data-stat-card .stat-trend {
            font-size: 12px;
            color: var(--brand-success);
            font-weight: 600;
            margin-top: 6px;
        }
        .report-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--brand-border);
            transition: var(--brand-transition);
            cursor: pointer;
        }
        .report-list-item:last-child {
            border-bottom: none;
        }
        .report-list-item:hover {
            padding-left: 6px;
        }
        .report-list-item .report-thumb {
            width: 120px;
            flex-shrink: 0;
            border-radius: var(--brand-radius);
            overflow: hidden;
            background: #EDE9E2;
        }
        .report-list-item .report-thumb img {
            width: 100%;
            height: 80px;
            object-fit: cover;
        }
        .report-list-item .report-info {
            flex: 1;
            min-width: 0;
        }
        .report-list-item .report-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--brand-text);
            line-height: 1.4;
            margin-bottom: 4px;
            transition: var(--brand-transition);
        }
        .report-list-item:hover .report-title {
            color: var(--brand-secondary);
        }
        .report-list-item .report-summary {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .report-list-item .report-meta {
            font-size: 12px;
            color: var(--brand-muted);
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .report-list-item .report-meta .report-tag {
            font-size: 12px;
            color: var(--brand-secondary);
            font-weight: 600;
        }
        .hot-rank-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-rank-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--brand-border);
            transition: var(--brand-transition);
        }
        .hot-rank-list li:last-child {
            border-bottom: none;
        }
        .hot-rank-list .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .hot-rank-list .rank-num.top1 {
            background: var(--brand-secondary);
            color: #fff;
        }
        .hot-rank-list .rank-num.top2 {
            background: rgba(201, 121, 46, 0.35);
            color: #fff;
        }
        .hot-rank-list .rank-num.top3 {
            background: rgba(201, 121, 46, 0.20);
            color: var(--brand-secondary);
        }
        .hot-rank-list .rank-title {
            font-size: 14px;
            color: var(--brand-text);
            font-weight: 500;
            flex: 1;
            min-width: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-rank-list .rank-heat {
            font-size: 13px;
            color: var(--brand-muted);
            font-weight: 500;
            flex-shrink: 0;
        }
        .feature-report-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            overflow: hidden;
            transition: var(--brand-transition);
            height: 100%;
        }
        .feature-report-card:hover {
            box-shadow: var(--brand-shadow);
            transform: translateY(-2px);
            border-color: var(--brand-primary);
        }
        .feature-report-card .feature-img {
            aspect-ratio: 16/9;
            background: #EDE9E2;
            overflow: hidden;
        }
        .feature-report-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-report-card .feature-body {
            padding: 18px 20px;
        }
        .feature-report-card .feature-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--brand-text);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .feature-report-card .feature-summary {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .feature-report-card .feature-meta {
            margin-top: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--brand-muted);
        }
        .compare-panel {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 28px;
            transition: var(--brand-transition);
        }
        .compare-panel:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
        }
        .compare-panel .compare-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 12px;
        }
        .compare-panel .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-panel .compare-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px dashed var(--brand-border);
            font-size: 14px;
            color: var(--brand-text);
        }
        .compare-panel .compare-list li:last-child {
            border-bottom: none;
        }
        .compare-panel .compare-list .compare-value {
            font-weight: 700;
            color: var(--brand-primary);
        }
        .compare-panel .compare-list .compare-value.up {
            color: var(--brand-success);
        }
        .compare-panel .compare-list .compare-value.down {
            color: var(--brand-alert);
        }
        .methodology-box {
            background: rgba(30, 58, 57, 0.04);
            border: 1px solid rgba(30, 58, 57, 0.12);
            border-radius: var(--brand-radius-md);
            padding: 24px;
        }
        .methodology-box h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 10px;
        }
        .methodology-box p {
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .methodology-box p:last-child {
            margin-bottom: 0;
        }
        .subscribe-panel {
            background: var(--brand-primary);
            border-radius: var(--brand-radius-lg);
            padding: 36px 32px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-panel .subscribe-text {
            flex: 1;
            min-width: 220px;
        }
        .subscribe-panel .subscribe-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .subscribe-panel .subscribe-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            line-height: 1.7;
        }
        .subscribe-panel .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-panel .subscribe-form input {
            background: #fff;
            border: none;
            border-radius: var(--brand-radius);
            padding: 10px 16px;
            font-size: 14px;
            min-width: 240px;
            color: var(--brand-text);
        }
        .subscribe-panel .subscribe-form input::placeholder {
            color: var(--brand-muted);
        }
        .faq-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--brand-card);
            transition: var(--brand-transition);
        }
        .faq-item:hover {
            border-color: var(--brand-primary);
        }
        .faq-item .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            color: var(--brand-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            user-select: none;
            transition: var(--brand-transition);
        }
        .faq-item .faq-question:hover {
            color: var(--brand-primary);
        }
        .faq-item .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-muted);
            transition: var(--brand-transition);
        }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            display: none;
            border-top: 1px solid var(--brand-border);
            padding-top: 12px;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            color: var(--brand-secondary);
        }
        .faq-item.open {
            border-left: 4px solid var(--brand-secondary);
        }
        .brand-footer {
            background: var(--brand-footer-bg);
            color: #d6dedd;
            padding: 40px 0 24px;
            margin-left: var(--brand-navbar-width);
        }
        .brand-footer .footer-brand {
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 8px;
        }
        .brand-footer .footer-brand-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            max-width: 320px;
        }
        .brand-footer .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .brand-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .brand-footer .footer-links li {
            margin-bottom: 6px;
        }
        .brand-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--brand-transition);
        }
        .brand-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .brand-footer .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
        }
        .brand-footer .footer-subscribe .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .brand-footer .footer-subscribe .subscribe-form input {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--brand-radius);
            padding: 8px 14px;
            font-size: 14px;
            color: #fff;
            flex: 1;
            min-width: 160px;
        }
        .brand-footer .footer-subscribe .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .brand-footer .footer-subscribe .subscribe-form button {
            background: var(--brand-secondary);
            border: none;
            color: #fff;
            border-radius: var(--brand-radius);
            padding: 8px 18px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--brand-transition);
        }
        .brand-footer .footer-subscribe .subscribe-form button:hover {
            background: #a96424;
        }
        .brand-footer .footer-bottom {
            margin-top: 28px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            align-items: center;
        }
        .brand-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 12px;
            transition: var(--brand-transition);
        }
        .brand-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* 响应式 */
        @media (max-width: 1199px) {
            :root {
                --brand-navbar-width: 220px;
                --brand-section-padding: 48px;
            }
            .data-stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            .brand-sidebar {
                display: none;
            }
            .brand-main {
                margin-left: 0;
            }
            .brand-footer {
                margin-left: 0;
            }
            .brand-mobile-nav {
                display: flex;
            }
            .brand-mobile-menu {
                display: block;
            }
            .cat-hero h1 {
                font-size: 28px;
            }
            .data-stat-grid {
                margin-top: 16px;
                gap: 12px;
            }
        }
        @media (max-width: 575px) {
            :root {
                --brand-section-padding: 40px;
                --brand-card-padding: 18px;
            }
            .brand-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .cat-hero {
                padding: 32px 0 28px;
            }
            .cat-hero h1 {
                font-size: 24px;
            }
            .cat-hero .cat-hero-desc {
                font-size: 14px;
            }
            .data-stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .data-stat-card {
                padding: 14px;
            }
            .data-stat-card .stat-value {
                font-size: 24px;
            }
            .report-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .report-list-item .report-thumb {
                width: 100%;
                height: 140px;
            }
            .report-list-item .report-thumb img {
                height: 140px;
            }
            .subscribe-panel {
                padding: 24px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-panel .subscribe-form input {
                min-width: 100%;
            }
            .feature-report-card .feature-body {
                padding: 14px 14px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #1E3A39;
            --brand-secondary: #C9792E;
            --brand-bg: #F5F3EF;
            --brand-card: #FFFFFF;
            --brand-border: #E7E2D9;
            --brand-text: #212529;
            --brand-muted: #6C757D;
            --brand-success: #2E7D6F;
            --brand-alert: #A94438;
            --brand-footer-bg: #182B2A;
            --brand-radius-sm: 6px;
            --brand-radius: 8px;
            --brand-radius-md: 12px;
            --brand-radius-lg: 16px;
            --brand-shadow: 0 8px 24px rgba(30, 58, 57, 0.10);
            --brand-transition: all 0.22s ease;
            --brand-font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --brand-navbar-width: 260px;
            --brand-navbar-collapsed: 220px;
            --brand-section-padding: 64px;
            --brand-card-padding: 22px;
        }

        @media (max-width: 1199.98px) {
            :root {
                --brand-navbar-width: 220px;
                --brand-section-padding: 48px;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --brand-section-padding: 40px;
                --brand-card-padding: 18px;
            }
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--brand-font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--brand-text);
            background-color: var(--brand-bg);
            margin: 0;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-left: var(--brand-navbar-width);
            transition: padding-left 0.25s ease;
        }

        @media (max-width: 991.98px) {
            body {
                padding-left: 0;
            }
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        a:hover {
            color: var(--brand-secondary);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .btn:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 4px solid rgba(30, 58, 57, 0.20);
            outline-offset: 2px;
            border-radius: var(--brand-radius);
        }

        /* ========== 左侧竖向导航（桌面端） ========== */
        .brand-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--brand-navbar-width);
            background: var(--brand-primary);
            color: #f0f4f3;
            display: flex;
            flex-direction: column;
            z-index: 1040;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.08);
            transition: transform 0.25s ease, width 0.25s ease;
        }

        .brand-sidebar .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 24px 18px 20px;
        }

        .brand-sidebar .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 6px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            margin-bottom: 20px;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .brand-sidebar .sidebar-logo .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .brand-sidebar .sidebar-logo .logo-sub {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 1.5px;
            line-height: 1.2;
            margin-top: 2px;
        }

        .brand-sidebar .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            flex: 1;
        }

        .brand-sidebar .sidebar-nav li {
            margin-bottom: 6px;
        }

        .brand-sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.82);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.3px;
            transition: var(--brand-transition);
            position: relative;
        }

        .brand-sidebar .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .brand-sidebar .sidebar-nav a.active {
            background: rgba(201, 121, 46, 0.18);
            color: #fff;
            font-weight: 600;
        }

        .brand-sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--brand-secondary);
            border-radius: 2px;
        }

        .brand-sidebar .sidebar-nav a .nav-indicator {
            font-size: 14px;
            opacity: 0.7;
        }

        .brand-sidebar .sidebar-bottom {
            flex-shrink: 0;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .brand-sidebar .sidebar-bottom a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: var(--brand-transition);
        }

        .brand-sidebar .sidebar-bottom a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        @media (max-width: 991.98px) {
            .brand-sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .brand-sidebar.mobile-open {
                transform: translateX(0);
            }
        }

        /* ========== 移动端顶部导航 ========== */
        .brand-mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--brand-primary);
            color: #fff;
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
        }

        .brand-mobile-nav .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }

        .brand-mobile-nav .mobile-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
        }

        .brand-mobile-nav .navbar-toggler {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-size: 20px;
            width: 40px;
            height: 40px;
            border-radius: var(--brand-radius);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--brand-transition);
        }

        .brand-mobile-nav .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        @media (max-width: 991.98px) {
            .brand-mobile-nav {
                display: flex;
            }
            body {
                padding-top: 56px;
            }
        }

        .sidebar-backdrop {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 1035;
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .sidebar-backdrop.show {
            display: block;
            opacity: 1;
        }
        @media (max-width: 991.98px) {
            .sidebar-backdrop.show {
                display: block;
            }
        }

        /* ========== 内容区 ========== */
        .brand-main {
            min-height: 100vh;
            background: var(--brand-bg);
        }

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

        .brand-section {
            padding-top: var(--brand-section-padding);
            padding-bottom: var(--brand-section-padding);
        }

        .brand-section-alt {
            background: #ffffff;
        }

        .brand-section-tight {
            padding-top: 32px;
            padding-bottom: 32px;
        }

        .brand-section-divider {
            border-top: 1px solid var(--brand-border);
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--brand-secondary);
            margin-bottom: 10px;
            text-transform: none;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--brand-muted);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* ========== 卡片 ========== */
        .brand-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: var(--brand-card-padding);
            transition: var(--brand-transition);
            height: 100%;
        }

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

        /* ========== 按钮 ========== */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-primary);
            color: #fff;
            border: 1px solid var(--brand-primary);
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: var(--brand-transition);
            cursor: pointer;
            text-align: center;
        }

        .btn-brand:hover {
            background: #162b2a;
            border-color: #162b2a;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(30, 58, 57, 0.18);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .btn-secondary-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: var(--brand-transition);
            cursor: pointer;
        }

        .btn-secondary-brand:hover {
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-secondary);
            color: #fff;
            border: 1px solid var(--brand-secondary);
            border-radius: var(--brand-radius);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.5;
            transition: var(--brand-transition);
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #b36626;
            border-color: #b36626;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 121, 46, 0.25);
        }

        /* ========== 标签 ========== */
        .brand-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
            background: rgba(30, 58, 57, 0.08);
            color: var(--brand-primary);
            border: 1px solid transparent;
            transition: var(--brand-transition);
        }

        .brand-tag:hover {
            background: rgba(30, 58, 57, 0.15);
            color: var(--brand-primary);
        }
        .brand-tag-accent {
            background: rgba(201, 121, 46, 0.12);
            color: var(--brand-secondary);
        }
        .brand-tag-success {
            background: rgba(46, 125, 111, 0.12);
            color: var(--brand-success);
        }

        /* ========== 页脚 ========== */
        .brand-footer {
            background: var(--brand-footer-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: 14px;
        }

        .brand-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .brand-footer .footer-brand-desc {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 0;
            color: rgba(255, 255, 255, 0.65);
        }

        .brand-footer .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .brand-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .brand-footer .footer-links li {
            margin-bottom: 8px;
        }

        .brand-footer .footer-links a {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            transition: var(--brand-transition);
        }

        .brand-footer .footer-links a:hover {
            color: var(--brand-secondary);
        }

        .brand-footer .footer-subscribe p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 12px;
        }

        .brand-footer .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .brand-footer .subscribe-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 14px;
            border-radius: var(--brand-radius);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--brand-transition);
        }
        .brand-footer .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .brand-footer .subscribe-form input:focus {
            border-color: var(--brand-secondary);
            background: rgba(255, 255, 255, 0.12);
        }
        .brand-footer .subscribe-form button {
            padding: 10px 18px;
            border-radius: var(--brand-radius);
            border: 1px solid var(--brand-secondary);
            background: var(--brand-secondary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--brand-transition);
        }
        .brand-footer .subscribe-form button:hover {
            background: #b36626;
            border-color: #b36626;
        }

        .brand-footer .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .brand-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: var(--brand-transition);
        }
        .brand-footer .footer-bottom a:hover {
            color: var(--brand-secondary);
        }

        /* ========== 分类页特有样式 ========== */
        .community-hero {
            padding: 48px 0 28px;
            background: var(--brand-card);
            border-bottom: 1px solid var(--brand-border);
            margin-bottom: 40px;
        }

        .community-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 12px;
        }
        .community-hero .lead {
            font-size: 16px;
            color: var(--brand-muted);
            max-width: 720px;
            line-height: 1.7;
        }

        .feed-list-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px;
            margin-bottom: 16px;
            transition: var(--brand-transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .feed-list-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--brand-shadow);
        }
        .feed-list-card .feed-cover {
            width: 120px;
            height: 80px;
            border-radius: var(--brand-radius);
            object-fit: cover;
            flex-shrink: 0;
            background: #EDE9E2;
        }
        .feed-list-card .feed-body {
            flex: 1;
            min-width: 0;
        }
        .feed-list-card .feed-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--brand-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .feed-list-card .feed-title a {
            color: var(--brand-text);
        }
        .feed-list-card .feed-title a:hover {
            color: var(--brand-secondary);
        }
        .feed-list-card .feed-summary {
            font-size: 14px;
            color: var(--brand-muted);
            margin-bottom: 8px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .feed-list-card .feed-meta {
            font-size: 12px;
            color: var(--brand-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .community-sidebar-card {
            background: var(--brand-card);
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius-md);
            padding: 20px;
            margin-bottom: 20px;
        }
        .community-sidebar-card .sidebar-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 14px;
        }

        .hot-tag-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-tag-list li {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .hot-tag-list a {
            font-size: 14px;
            color: var(--brand-text);
            font-weight: 500;
        }
        .hot-tag-list a:hover {
            color: var(--brand-secondary);
        }
        .hot-tag-list .tag-count {
            font-size: 12px;
            color: var(--brand-muted);
            background: rgba(30, 58, 57, 0.06);
            padding: 2px 10px;
            border-radius: 50px;
        }

        .member-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .member-item .member-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .member-item .member-info {
            flex: 1;
            min-width: 0;
        }
        .member-item .member-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-text);
        }
        .member-item .member-role {
            font-size: 12px;
            color: var(--brand-muted);
        }

        .data-snapshot {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 16px;
        }
        @media (max-width: 767.98px) {
            .data-snapshot {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .data-snapshot .snapshot-item {
            text-align: center;
            padding: 16px;
            background: rgba(30, 58, 57, 0.04);
            border-radius: var(--brand-radius);
        }
        .data-snapshot .snapshot-number {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.3;
        }
        .data-snapshot .snapshot-label {
            font-size: 12px;
            color: var(--brand-muted);
            margin-top: 4px;
        }

        .faq-item {
            border: 1px solid var(--brand-border);
            border-radius: var(--brand-radius);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--brand-card);
        }
        .faq-item .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--brand-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--brand-transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(30, 58, 57, 0.04);
        }
        .faq-item .faq-question .faq-toggle {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--brand-muted);
            transition: transform 0.2s ease;
        }
        .faq-item.open .faq-question .faq-toggle {
            transform: rotate(45deg);
            color: var(--brand-secondary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-item .faq-answer p {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--brand-muted);
            line-height: 1.7;
            margin: 0;
        }

        .community-cta {
            background: var(--brand-primary);
            border-radius: var(--brand-radius-lg);
            padding: 40px 32px;
            color: #fff;
        }
        .community-cta h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .community-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin-bottom: 24px;
        }
        .community-cta .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .community-cta .cta-form input,
        .community-cta .cta-form select {
            flex: 1;
            min-width: 160px;
            padding: 12px 16px;
            border-radius: var(--brand-radius);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: var(--brand-transition);
        }
        .community-cta .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .community-cta .cta-form select option {
            color: var(--brand-text);
            background: #fff;
        }
        .community-cta .cta-form input:focus,
        .community-cta .cta-form select:focus {
            border-color: var(--brand-secondary);
            background: rgba(255, 255, 255, 0.18);
        }

        @media (max-width: 767.98px) {
            .community-hero h1 {
                font-size: 28px;
            }
            .feed-list-card {
                flex-direction: column;
            }
            .feed-list-card .feed-cover {
                width: 100%;
                height: 160px;
            }
            .community-cta {
                padding: 28px 20px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}