/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --cha-primary: #8B6F47;
            --cha-primary-dark: #6B5435;
            --cha-primary-light: #B89B72;
            --cha-green: #4A7C59;
            --cha-green-dark: #3A6549;
            --cha-bg: #FAF7F2;
            --cha-bg-alt: #F2ECE3;
            --cha-bg-deep: #2E2923;
            --cha-text: #2D2A26;
            --cha-text-light: #6B6660;
            --cha-border: #E5DCCE;
            --cha-white: #FFFFFF;
            --cha-gold: #C9A96E;
            --cha-shadow-sm: 0 2px 8px rgba(45, 42, 38, 0.06);
            --cha-shadow-md: 0 4px 20px rgba(45, 42, 38, 0.09);
            --cha-shadow-lg: 0 12px 40px rgba(45, 42, 38, 0.14);
            --cha-radius-sm: 8px;
            --cha-radius-md: 14px;
            --cha-radius-lg: 22px;
            --cha-transition: all 0.3s ease;
            --cha-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--cha-font);
            background-color: var(--cha-bg);
            color: var(--cha-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--cha-primary-dark);
        }

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

        button,
        input {
            font-family: inherit;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 顶部提示条 ===== */
        .topbar {
            background: var(--cha-bg-alt);
            border-bottom: 1px solid var(--cha-border);
            padding: 8px 0;
            font-size: 14px;
        }

        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px;
        }

        .topbar-text {
            color: var(--cha-text-light);
            font-weight: 500;
        }

        .topbar-text i {
            color: var(--cha-gold);
            margin-right: 4px;
        }

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

        .topbar-link:hover {
            color: var(--cha-primary-dark);
        }

        /* ===== 导航 ===== */
        .main-header {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--cha-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(45, 42, 38, 0.04);
        }

        .main-header .navbar {
            padding-top: 14px;
            padding-bottom: 14px;
        }

        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--cha-primary-dark) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--cha-primary), var(--cha-primary-dark));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .navbar-brand .brand-sub {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--cha-text-light);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            color: var(--cha-text);
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: 30px;
            font-size: 15px;
            transition: var(--cha-transition);
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--cha-primary);
            background: rgba(139, 111, 71, 0.08);
        }

        .navbar-nav .nav-link.active {
            color: var(--cha-primary);
            background: rgba(139, 111, 71, 0.1);
            font-weight: 600;
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            background: transparent;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28139,111,71,1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.2);
        }

        /* ===== 按钮 ===== */
        .btn {
            border-radius: 50px;
            font-weight: 600;
            padding: 10px 26px;
            font-size: 15px;
            transition: var(--cha-transition);
            border: 2px solid transparent;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--cha-primary-dark);
            border-color: var(--cha-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--cha-shadow-md);
        }

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

        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background: var(--cha-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--cha-shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

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

        .btn-lg {
            padding: 14px 36px;
            font-size: 16px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(139, 111, 71, 0.4);
            box-shadow: none;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(135deg, #F7F1E8 0%, #F0E7DA 50%, #E8DCCB 100%);
            padding: 0;
            position: relative;
            overflow: hidden;
        }

        .hero-inner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
        }

        .hero-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(100deg, rgba(250, 247, 242, 0.97) 30%, rgba(250, 247, 242, 0.75) 60%, rgba(250, 247, 242, 0.3) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(139, 111, 71, 0.12);
            color: var(--cha-primary);
            font-weight: 600;
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 20px;
            border: 1px solid rgba(139, 111, 71, 0.2);
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--cha-text);
            line-height: 1.25;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }

        .hero-content h1 .highlight {
            color: var(--cha-primary);
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--cha-text-light);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(139, 111, 71, 0.15);
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--cha-primary);
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 13px;
            color: var(--cha-text-light);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 70px 0;
        }

        .section-alt {
            background: var(--cha-bg-alt);
        }

        .section-deep {
            background: var(--cha-bg-deep);
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-header .section-tag {
            display: inline-block;
            background: rgba(139, 111, 71, 0.1);
            color: var(--cha-primary);
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--cha-text);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-header p {
            color: var(--cha-text-light);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* ===== 券面网格 ===== */
        .coupon-grid {
            padding: 70px 0 60px;
        }

        .coupon-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            transition: var(--cha-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .coupon-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--cha-primary), var(--cha-gold));
        }

        .coupon-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--cha-shadow-md);
        }

        .coupon-tag {
            display: inline-block;
            background: rgba(74, 124, 89, 0.1);
            color: var(--cha-green);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .coupon-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--cha-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .coupon-amount small {
            font-size: 1rem;
            font-weight: 600;
        }

        .coupon-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--cha-text);
            margin-bottom: 8px;
        }

        .coupon-desc {
            font-size: 14px;
            color: var(--cha-text-light);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .coupon-meta {
            font-size: 12px;
            color: var(--cha-text-light);
            background: var(--cha-bg);
            border-radius: var(--cha-radius-sm);
            padding: 6px 12px;
            display: inline-block;
        }

        .coupon-btn {
            margin-top: 14px;
            width: 100%;
            text-align: center;
            font-size: 14px;
        }

        /* ===== 使用规则 / 步骤 ===== */
        .steps-section {
            padding: 70px 0;
            background: var(--cha-bg-alt);
        }

        .step-card {
            text-align: center;
            padding: 36px 28px;
            background: var(--cha-white);
            border-radius: var(--cha-radius-lg);
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            height: 100%;
            transition: var(--cha-transition);
            position: relative;
        }

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

        .step-number {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--cha-primary), var(--cha-primary-dark));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 16px rgba(139, 111, 71, 0.3);
        }

        .step-icon {
            font-size: 1.4rem;
            color: var(--cha-primary);
            margin-bottom: 16px;
            display: block;
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--cha-text);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--cha-text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 焦点主题 ===== */
        .topics-section {
            padding: 70px 0;
        }

        .topic-card {
            border-radius: var(--cha-radius-md);
            overflow: hidden;
            border: 1px solid var(--cha-border);
            background: var(--cha-white);
            box-shadow: var(--cha-shadow-sm);
            transition: var(--cha-transition);
            height: 100%;
        }

        .topic-card:hover {
            box-shadow: var(--cha-shadow-md);
            transform: translateY(-4px);
        }

        .topic-card .topic-img {
            height: 160px;
            overflow: hidden;
        }

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

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

        .topic-card .topic-body {
            padding: 18px 20px 22px;
        }

        .topic-card .topic-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--cha-text);
            margin-bottom: 6px;
        }

        .topic-card .topic-body p {
            font-size: 13px;
            color: var(--cha-text-light);
            line-height: 1.6;
            margin-bottom: 10px;
        }

        .topic-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--cha-primary);
        }

        .topic-link i {
            transition: transform 0.3s ease;
            font-size: 12px;
        }

        .topic-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 资讯区 ===== */
        .news-section {
            padding: 70px 0;
            background: var(--cha-bg-alt);
        }

        .news-main {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            padding: 28px;
            height: 100%;
        }

        .news-main-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--cha-text);
            padding-bottom: 14px;
            border-bottom: 2px solid var(--cha-border);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-main-title i {
            color: var(--cha-primary);
        }

        .news-list-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--cha-border);
            transition: var(--cha-transition);
        }

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

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

        .news-cat {
            font-size: 12px;
            background: rgba(139, 111, 71, 0.1);
            color: var(--cha-primary);
            padding: 2px 10px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 6px;
            font-weight: 600;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-title a {
            color: var(--cha-text);
        }

        .news-title a:hover {
            color: var(--cha-primary);
        }

        .news-excerpt {
            font-size: 13px;
            color: var(--cha-text-light);
            line-height: 1.6;
            margin-bottom: 6px;
        }

        .news-date {
            font-size: 12px;
            color: var(--cha-text-light);
            display: inline-block;
        }

        .news-sidebar {
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-side-widget {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            padding: 24px;
        }

        .news-side-widget h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--cha-text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--cha-border);
        }

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

        .tag-item {
            display: inline-block;
            background: var(--cha-bg);
            border: 1px solid var(--cha-border);
            color: var(--cha-text-light);
            font-size: 13px;
            padding: 4px 14px;
            border-radius: 20px;
            transition: var(--cha-transition);
            cursor: pointer;
        }

        .tag-item:hover {
            background: var(--cha-primary);
            color: #fff;
            border-color: var(--cha-primary);
        }

        .side-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .side-link-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--cha-border);
            font-size: 14px;
        }

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

        .side-link-list a {
            color: var(--cha-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-link-list a:hover {
            color: var(--cha-primary);
        }

        .side-link-list a::before {
            content: '\f105';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--cha-primary);
            font-size: 12px;
        }

        /* ===== 评价墙 ===== */
        .review-section {
            padding: 70px 0;
        }

        .review-summary {
            text-align: center;
            margin-bottom: 40px;
        }

        .review-summary .score {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--cha-primary);
            line-height: 1.2;
        }

        .review-summary .stars {
            color: var(--cha-gold);
            font-size: 1.1rem;
            margin-top: 6px;
        }

        .review-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            padding: 26px;
            height: 100%;
            transition: var(--cha-transition);
        }

        .review-card:hover {
            box-shadow: var(--cha-shadow-md);
        }

        .review-card .quote-icon {
            font-size: 1.2rem;
            color: var(--cha-primary);
            opacity: 0.3;
            margin-bottom: 10px;
        }

        .review-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--cha-text);
            margin-bottom: 16px;
            font-style: italic;
        }

        .reviewer {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .reviewer-avatar {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--cha-primary-light), var(--cha-primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
        }

        .reviewer-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--cha-text);
        }

        .reviewer-meta {
            font-size: 12px;
            color: var(--cha-text-light);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 70px 0;
            background: var(--cha-bg-alt);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--cha-border);
            border-radius: var(--cha-radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--cha-white);
            box-shadow: var(--cha-shadow-sm);
        }

        .accordion-button {
            background: var(--cha-white);
            color: var(--cha-text);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 24px;
            border-radius: var(--cha-radius-md) !important;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(139, 111, 71, 0.05);
            color: var(--cha-primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.15);
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%238B6F47'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .accordion-body {
            padding: 4px 24px 20px;
            color: var(--cha-text-light);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--cha-bg-deep), #3A3126);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: rgba(139, 111, 71, 0.15);
            border-radius: 50%;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-note {
            margin-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: block;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1E1A16;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 0;
        }

        .site-footer .footer-top {
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            display: block;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

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

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--cha-transition);
        }

        .footer-links a:hover {
            color: var(--cha-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

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

        .footer-bottom a:hover {
            color: var(--cha-gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-inner {
                padding: 70px 0;
            }

            .hero-content h1 {
                font-size: 2.1rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat-item .stat-num {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .hero-inner {
                padding: 56px 0;
            }

            .hero-content h1 {
                font-size: 1.75rem;
            }

            .hero-desc {
                font-size: 0.95rem;
            }

            .coupon-grid {
                padding: 50px 0 40px;
            }

            .steps-section {
                padding: 50px 0;
            }

            .news-main {
                padding: 20px;
            }

            .navbar-brand {
                font-size: 1.15rem;
            }

            .navbar-brand .brand-sub {
                font-size: 11px;
            }

            .cta-content h2 {
                font-size: 1.6rem;
            }

            .cta-content p {
                font-size: 1rem;
            }

            .btn-lg {
                padding: 12px 28px;
                font-size: 15px;
            }

            .section-header {
                margin-bottom: 36px;
            }
        }

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

            .hero-inner {
                padding: 44px 0;
            }

            .hero-content h1 {
                font-size: 1.5rem;
                line-height: 1.3;
            }

            .hero-desc {
                font-size: 0.9rem;
                line-height: 1.65;
            }

            .hero-actions {
                gap: 10px;
            }

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

            .hero-stats {
                gap: 16px;
                justify-content: space-between;
            }

            .hero-stat-item .stat-num {
                font-size: 1.3rem;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .coupon-card {
                padding: 22px 18px;
            }

            .step-card {
                padding: 26px 20px;
            }

            .news-main {
                padding: 16px;
            }

            .review-card {
                padding: 20px;
            }

            .cta-section {
                padding: 56px 0;
            }

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

            .footer-title {
                font-size: 14px;
            }

            .footer-links a {
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --cha-primary: #8B6F47;
            --cha-primary-dark: #6B5435;
            --cha-primary-light: #B89B72;
            --cha-green: #4A7C59;
            --cha-green-dark: #3A6549;
            --cha-bg: #FAF7F2;
            --cha-bg-alt: #F2ECE3;
            --cha-bg-deep: #2E2923;
            --cha-text: #2D2A26;
            --cha-text-light: #6B6660;
            --cha-border: #E5DCCE;
            --cha-white: #FFFFFF;
            --cha-gold: #C9A96E;
            --cha-shadow-sm: 0 2px 8px rgba(45, 42, 38, 0.06);
            --cha-shadow-md: 0 4px 20px rgba(45, 42, 38, 0.09);
            --cha-shadow-lg: 0 12px 40px rgba(45, 42, 38, 0.14);
            --cha-radius-sm: 8px;
            --cha-radius-md: 14px;
            --cha-radius-lg: 22px;
            --cha-transition: all 0.3s ease;
            --cha-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--cha-font);
            background-color: var(--cha-bg);
            color: var(--cha-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--cha-primary);
            transition: var(--cha-transition);
        }
        a:hover {
            color: var(--cha-primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 顶部提示条 ===== */
        .topbar {
            background: var(--cha-bg-alt);
            border-bottom: 1px solid var(--cha-border);
            padding: 8px 0;
            font-size: 14px;
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px;
        }
        .topbar-text {
            color: var(--cha-text-light);
            font-weight: 500;
        }
        .topbar-text i {
            color: var(--cha-gold);
            margin-right: 4px;
        }
        .topbar-link {
            color: var(--cha-primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .topbar-link:hover {
            color: var(--cha-primary-dark);
        }

        /* ===== 导航 ===== */
        .main-header {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--cha-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(45, 42, 38, 0.04);
        }
        .main-header .navbar {
            padding-top: 14px;
            padding-bottom: 14px;
        }
        .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--cha-primary-dark) !important;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--cha-primary), var(--cha-primary-dark));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .navbar-brand .brand-sub {
            display: block;
            font-size: 12px;
            font-weight: 400;
            color: var(--cha-text-light);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            color: var(--cha-text);
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: 30px;
            font-size: 15px;
            transition: var(--cha-transition);
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--cha-primary);
            background: rgba(139, 111, 71, 0.08);
        }
        .navbar-nav .nav-link.active {
            color: var(--cha-primary);
            background: rgba(139, 111, 71, 0.1);
            font-weight: 600;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            background: transparent;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28139,111,71,1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.2);
        }

        /* ===== 按钮 ===== */
        .btn {
            border-radius: 50px;
            font-weight: 600;
            padding: 10px 26px;
            font-size: 15px;
            transition: var(--cha-transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--cha-primary);
            border-color: var(--cha-primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--cha-primary-dark);
            border-color: var(--cha-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--cha-shadow-md);
        }
        .btn-outline-primary {
            background: transparent;
            border-color: var(--cha-primary);
            color: var(--cha-primary);
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background: var(--cha-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--cha-shadow-md);
        }

        /* ===== 通用区块标题 ===== */
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-eyebrow {
            color: var(--cha-primary);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--cha-text);
            letter-spacing: -0.5px;
            margin-bottom: 10px;
        }
        .section-subtitle {
            color: var(--cha-text-light);
            font-size: 16px;
            max-width: 640px;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 110px 0 90px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: #fff;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(46, 41, 35, 0.88), rgba(46, 41, 35, 0.62));
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero-inner {
            max-width: 860px;
        }
        .article-hero .badge {
            background: rgba(201, 169, 110, 0.24);
            border: 1px solid rgba(201, 169, 110, 0.6);
            color: #F2E3C4;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 18px;
            display: inline-block;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: -0.8px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .article-hero .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.92);
        }
        .article-hero .article-meta i {
            margin-right: 5px;
            color: var(--cha-gold);
        }

        /* ===== 正文与侧边栏 ===== */
        .article-content-section {
            padding: 60px 0 20px;
        }
        .article-main-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-lg);
            box-shadow: var(--cha-shadow-md);
            border: 1px solid var(--cha-border);
            padding: 42px;
            margin-bottom: 40px;
        }
        .article-body-content {
            font-size: 16px;
            line-height: 1.95;
            color: var(--cha-text);
        }
        .article-body-content p {
            margin-bottom: 20px;
        }
        .article-body-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            margin: 34px 0 16px;
            color: var(--cha-primary-dark);
            letter-spacing: -0.3px;
        }
        .article-body-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 26px 0 12px;
            color: var(--cha-text);
        }
        .article-body-content ul,
        .article-body-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }
        .article-body-content li {
            margin-bottom: 8px;
        }
        .article-body-content img {
            border-radius: var(--cha-radius-md);
            margin: 24px 0;
            box-shadow: var(--cha-shadow-sm);
        }
        .article-body-content blockquote {
            border-left: 4px solid var(--cha-primary);
            background: var(--cha-bg-alt);
            border-radius: 0 var(--cha-radius-sm) var(--cha-radius-sm) 0;
            padding: 16px 22px;
            margin: 24px 0;
            color: var(--cha-text-light);
            font-style: italic;
        }
        .article-body-content a {
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .content-missing {
            padding: 50px 20px;
            text-align: center;
        }
        .content-missing .missing-icon {
            font-size: 50px;
            color: var(--cha-primary-light);
            margin-bottom: 16px;
        }
        .content-missing p {
            margin-bottom: 12px;
        }
        .article-tags {
            border-top: 1px solid var(--cha-border);
            margin-top: 36px;
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .article-tags .tag-label {
            font-size: 14px;
            color: var(--cha-text-light);
            font-weight: 600;
            margin-right: 4px;
            align-self: center;
        }
        .article-tags a {
            display: inline-block;
            background: var(--cha-bg-alt);
            border-radius: 30px;
            padding: 4px 14px;
            font-size: 13px;
            color: var(--cha-primary-dark);
            border: 1px solid var(--cha-border);
        }
        .article-tags a:hover {
            background: var(--cha-primary);
            color: #fff;
            border-color: var(--cha-primary);
        }

        /* ===== 侧边栏 ===== */
        .sidebar-sticky {
            position: sticky;
            top: 100px;
        }
        .widget-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            box-shadow: var(--cha-shadow-sm);
            border: 1px solid var(--cha-border);
            padding: 26px;
            margin-bottom: 24px;
        }
        .widget-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--cha-text);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--cha-bg-alt);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .widget-title i {
            color: var(--cha-primary);
        }
        .widget-lead {
            font-size: 14px;
            color: var(--cha-text-light);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .widget-btn {
            width: 100%;
            margin-bottom: 0;
        }
        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--cha-border);
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            color: var(--cha-text);
            font-size: 14px;
            line-height: 1.4;
        }
        .hot-list a:hover {
            color: var(--cha-primary);
        }
        .hot-list .hot-score {
            color: var(--cha-gold);
            font-weight: 700;
            font-size: 13px;
            white-space: nowrap;
        }
        .widget-img {
            border-radius: var(--cha-radius-sm);
            margin-bottom: 14px;
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .region-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .region-tags a {
            background: var(--cha-bg-alt);
            border: 1px solid var(--cha-border);
            border-radius: 30px;
            padding: 5px 14px;
            font-size: 13px;
            color: var(--cha-text);
        }
        .region-tags a:hover {
            background: var(--cha-primary);
            color: #fff;
            border-color: var(--cha-primary);
        }

        /* ===== 指标看板 ===== */
        .metrics-section {
            background: var(--cha-bg-alt);
            padding: 60px 0;
            border-top: 1px solid var(--cha-border);
            border-bottom: 1px solid var(--cha-border);
        }
        .metric-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-md);
            text-align: center;
            padding: 32px 20px 28px;
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            transition: var(--cha-transition);
            height: 100%;
        }
        .metric-card:hover {
            box-shadow: var(--cha-shadow-md);
            transform: translateY(-4px);
        }
        .metric-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 14px;
            background: linear-gradient(135deg, var(--cha-primary-light), var(--cha-primary));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
        }
        .metric-number {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--cha-primary-dark);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .metric-label {
            color: var(--cha-text-light);
            font-size: 15px;
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== 服务矩阵 ===== */
        .service-matrix {
            padding: 70px 0;
        }
        .service-card {
            background: var(--cha-white);
            border-radius: var(--cha-radius-lg);
            overflow: hidden;
            border: 1px solid var(--cha-border);
            box-shadow: var(--cha-shadow-sm);
            transition: var(--cha-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--cha-shadow-lg);
            transform: translateY(-6px);
        }
        .service-card-img {
            position: relative;
            overflow: hidden;
        }
        .service-card-img img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .service-card-img img {
            transform: scale(1.05);
        }
        .service-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(46, 41, 35, 0.35));
        }
        .service-card-body {
            padding: 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--cha-text);
        }
        .service-card-body p {
            color: var(--cha-text-light);
            font-size: 14px;
            line-height: 1.75;
            flex: 1;
            margin-bottom: 18px;
        }
        .service-card-body .btn {
            align-self: flex-start;
        }

        /* ===== 推荐轨 ===== */
        .related-track {
            background: var(--cha-bg-deep);
            color: #fff;
            padding: 70px 0;
            border-top: 5px solid var(--cha-gold);
            border-bottom: 5px solid var(--cha-gold);
        }
        .related-track .section-title {
            color: #fff;
        }
        .related-track .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .related-track .section-eyebrow {
            color: var(--cha-gold);
        }
        .related-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--cha-radius-md);
            overflow: hidden;
            height: 100%;
            transition: var(--cha-transition);
        }
        .related-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .related-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px;
        }
        .related-card-body .related-badge {
            display: inline-block;
            font-size: 12px;
            background: rgba(201, 169, 110, 0.2);
            color: #E8D5AC;
            border-radius: 30px;
            padding: 3px 12px;
            margin-bottom: 10px;
        }
        .related-card-body h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .related-card-body p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
            line-height: 1.65;
        }
        .related-card-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
        }
        .related-card-score {
            color: var(--cha-gold);
            font-weight: 700;
            font-size: 14px;
        }
        .related-card-btn {
            color: #fff;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            padding: 4px 14px;
            transition: var(--cha-transition);
        }
        .related-card-btn:hover {
            background: #fff;
            color: var(--cha-bg-deep);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 70px 0;
        }
        .accordion-item {
            border: 1px solid var(--cha-border) !important;
            border-radius: var(--cha-radius-md) !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: var(--cha-white);
            box-shadow: var(--cha-shadow-sm);
        }
        .accordion-button {
            background: var(--cha-white);
            color: var(--cha-text);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
        }
        .accordion-button:not(.collapsed) {
            background: var(--cha-bg-alt);
            color: var(--cha-primary-dark);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.15);
            outline: none;
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%238B6F47'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .accordion-body {
            padding: 18px 22px 22px;
            color: var(--cha-text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA 表单 ===== */
        .cta-form-section {
            padding: 70px 0;
            background: var(--cha-bg-alt);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--cha-green), var(--cha-green-dark));
            border-radius: var(--cha-radius-lg);
            padding: 52px;
            color: #fff;
            box-shadow: var(--cha-shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -30px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }
        .cta-box .container {
            position: relative;
            z-index: 2;
        }
        .cta-title {
            font-size: 1.9rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            max-width: 520px;
        }
        .cta-form-label {
            font-size: 13px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 6px;
        }
        .cta-box .form-control {
            border-radius: 10px;
            padding: 11px 15px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.95);
            font-size: 15px;
            margin-bottom: 14px;
        }
        .cta-box .form-control:focus {
            border-color: var(--cha-gold);
            box-shadow: 0 0 0 4px rgba(201, 169, 110, 0.25);
        }
        .cta-box .form-select {
            border-radius: 10px;
            padding: 11px 15px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            background-color: rgba(255, 255, 255, 0.95);
            font-size: 15px;
            margin-bottom: 14px;
        }
        .cta-box .form-select:focus {
            border-color: var(--cha-gold);
            box-shadow: 0 0 0 4px rgba(201, 169, 110, 0.25);
        }
        .cta-box textarea.form-control {
            min-height: 90px;
        }
        .btn-light {
            background: #fff;
            border-color: #fff;
            color: var(--cha-green-dark);
        }
        .btn-light:hover {
            background: var(--cha-bg-alt);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .cta-contact-row {
            margin-top: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }
        .cta-contact-row i {
            margin-right: 6px;
            color: var(--cha-gold);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--cha-bg-deep);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
        }
        .footer-top {
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
            line-height: 1.8;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.6;
        }
        .footer-links a:hover {
            color: var(--cha-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 22px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--cha-gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 80px 0 60px;
            }
            .article-hero h1 {
                font-size: 2.1rem;
            }
            .cta-box {
                padding: 36px;
            }
        }
        @media (max-width: 768px) {
            .article-hero {
                padding: 60px 0 45px;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-hero .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-main-card {
                padding: 26px 20px;
            }
            .article-content-section {
                padding: 40px 0 10px;
            }
            .metrics-section,
            .service-matrix,
            .related-track,
            .faq-section,
            .cta-form-section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .service-card-img img {
                height: 180px;
            }
            .cta-box {
                padding: 30px 22px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .metric-card {
                margin-bottom: 16px;
            }
            .service-card {
                margin-bottom: 20px;
            }
            .related-card {
                margin-bottom: 20px;
            }
            .sidebar-sticky {
                position: static;
                margin-top: 30px;
            }
        }
        @media (max-width: 520px) {
            .topbar {
                font-size: 12px;
            }
            .topbar .container {
                justify-content: center;
                text-align: center;
            }
            .brand-sub {
                display: none !important;
            }
            .navbar-brand {
                font-size: 1.05rem;
            }
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-main-card {
                padding: 20px 16px;
                border-radius: 16px;
            }
            .article-body-content {
                font-size: 15px;
            }
            .article-body-content h2 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 14px;
            }
            .metric-number {
                font-size: 1.9rem;
            }
            .cta-box {
                border-radius: 16px;
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .cta-desc {
                font-size: 14px;
            }
            .footer-title {
                font-size: 14px;
            }
        }

/* 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}