/* roulang page: index */
:root {
            --primary: #4A78C9;
            --primary-light: #6E9CD3;
            --primary-bg: #EAF0FA;
            --primary-soft: #F5F8FF;
            --accent-amber: #C09A6B;
            --accent-amber-light: #F4EBE0;
            --accent-bamboo: #A8BFAD;
            --accent-bamboo-light: #EEF5EF;
            --bg-main: #FAFBFD;
            --bg-soft: #F7F9FC;
            --text-dark: #1F2933;
            --text-mid: #5C6B7E;
            --text-light: #8A97A8;
            --border-color: #E4EAF2;
            --shadow-card: 0 4px 20px rgba(74, 120, 201, 0.08);
            --shadow-card-hover: 0 8px 32px rgba(74, 120, 201, 0.14);
            --shadow-lg: 0 12px 40px rgba(74, 120, 201, 0.12);
            --radius-card: 16px;
            --radius-card-lg: 20px;
            --radius-btn: 10px;
            --radius-input: 8px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --transition-base: all 0.3s ease;
            --gutter-desktop: 32px;
            --gutter-mobile: 16px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-dark);
            background-color: var(--bg-main);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--primary-light);
            text-decoration: none;
        }

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

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

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 导航 ========== */
        .navbar-custom {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1040;
            transition: var(--transition-base);
        }
        .navbar-custom.scrolled {
            box-shadow: var(--shadow-card);
        }
        .navbar-brand-logo {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand-logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .navbar-nav-custom {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link-custom {
            color: var(--text-mid);
            font-weight: 500;
            font-size: 15px;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .nav-link-custom:hover,
        .nav-link-custom.active {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .navbar-toggler-custom {
            border: none;
            background: transparent;
            color: var(--text-dark);
            font-size: 22px;
            padding: 8px 12px;
            border-radius: 8px;
        }
        .navbar-toggler-custom:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ========== Hero ========== */
        .hero-section {
            padding: 56px 0 72px;
            background: linear-gradient(135deg, #F5F8FF 0%, #FAFBFD 55%, #F7F9FC 100%);
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(110, 156, 211, 0.16) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(192, 154, 107, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-title {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero-subtitle {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
            line-height: 1.5;
        }
        .hero-desc {
            font-size: 16px;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 28px;
            max-width: 540px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-primary-custom:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(74, 120, 201, 0.3);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-primary-custom:focus {
            outline: 3px solid rgba(74, 120, 201, 0.35);
            outline-offset: 2px;
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-outline-custom:hover {
            background: var(--primary-bg);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .btn-outline-custom:active {
            transform: translateY(0);
        }
        .btn-outline-custom:focus {
            outline: 3px solid rgba(74, 120, 201, 0.25);
            outline-offset: 2px;
        }
        .hero-trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
        }
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-mid);
        }
        .trust-badge i {
            color: var(--accent-bamboo);
            font-size: 15px;
        }

        /* Hero对比卡 */
        .hero-compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            background: #fff;
            border-radius: var(--radius-card-lg);
            padding: 22px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            position: relative;
            z-index: 1;
        }
        .compare-card {
            border-radius: 14px;
            padding: 20px;
            position: relative;
            transition: var(--transition-base);
        }
        .compare-card.before {
            background: #F7F9FC;
            border: 1px solid #E4EAF2;
        }
        .compare-card.after {
            background: var(--primary-soft);
            border: 2px solid var(--primary);
        }
        .compare-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            background: #fff;
            border: 1px solid var(--border-color);
        }
        .compare-card.before .compare-label {
            color: var(--text-mid);
        }
        .compare-card.after .compare-label {
            color: var(--primary);
            border-color: var(--primary);
        }
        .compare-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-list li {
            font-size: 13.5px;
            color: var(--text-mid);
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .compare-list li i {
            flex-shrink: 0;
            margin-top: 3px;
            font-size: 14px;
        }
        .compare-card.before .compare-list li i {
            color: #B0BEC5;
        }
        .compare-card.after .compare-list li i {
            color: var(--accent-bamboo);
        }

        /* ========== 板块共用 ========== */
        .section-pad {
            padding: var(--section-pad-desktop) 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.35;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-mid);
            line-height: 1.8;
            max-width: 760px;
        }
        .card-custom {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(74, 120, 201, 0.25);
        }
        .card-body-custom {
            padding: 24px;
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        /* KPI看板 */
        .kpi-bar {
            background: #fff;
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
            margin-top: -20px;
        }
        .kpi-item {
            text-align: center;
            padding: 8px 16px;
            border-right: 1px solid var(--border-color);
        }
        .kpi-item:last-child {
            border-right: none;
        }
        .kpi-number {
            font-size: 38px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .kpi-label {
            font-size: 14px;
            color: var(--text-mid);
            font-weight: 500;
        }

        /* 服务矩阵 */
        .service-matrix .card-custom {
            padding: 8px;
        }
        .service-matrix .card-body-custom {
            padding: 28px 24px;
        }

        /* 场景演示 */
        .scene-row {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            align-items: center;
            margin-bottom: 40px;
        }
        .scene-row:last-child {
            margin-bottom: 0;
        }
        .scene-row.reverse {
            grid-template-columns: 1.2fr 1fr;
        }
        .scene-image-wrap {
            border-radius: var(--radius-card-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16/10;
        }
        .scene-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .scene-image-wrap:hover img {
            transform: scale(1.03);
        }
        .scene-text h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-dark);
        }
        .scene-text p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* 画廊 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .gallery-item {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            cursor: pointer;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .gallery-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .gallery-item img {
            width: 100%;
            aspect-ratio: 4/5;
            object-fit: cover;
            transition: var(--transition-base);
        }
        .gallery-item:hover img {
            transform: scale(1.05);
        }
        .gallery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 18px 16px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        /* 茶艺师 */
        .masters-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .master-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            text-align: center;
            padding-bottom: 20px;
        }
        .master-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .master-card img {
            width: 100%;
            aspect-ratio: 1/1;
            object-fit: cover;
            margin-bottom: 16px;
        }
        .master-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
            padding: 0 16px;
        }
        .master-card p {
            font-size: 13px;
            color: var(--text-mid);
            margin-bottom: 10px;
            padding: 0 16px;
            line-height: 1.6;
        }
        .master-tag {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
        }

        /* 评价 */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 18px;
            transition: var(--transition-base);
        }
        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .review-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1;
            flex-shrink: 0;
            min-width: 40px;
            padding-top: 2px;
        }
        .review-content {
            flex: 1;
        }
        .review-text {
            font-size: 15px;
            color: var(--text-dark);
            line-height: 1.75;
            margin-bottom: 8px;
        }
        .review-source {
            font-size: 13px;
            color: var(--text-light);
            font-style: italic;
        }

        /* 对比差异 */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 48px 1fr;
            gap: 0;
            align-items: stretch;
        }
        .comparison-card {
            border-radius: var(--radius-card-lg);
            padding: 28px 26px;
            height: 100%;
            transition: var(--transition-base);
        }
        .comparison-card.highlight {
            background: var(--primary-soft);
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-card);
        }
        .comparison-card.neutral {
            background: #fff;
            border: 1px solid #D5DCE5;
            box-shadow: var(--shadow-card);
        }
        .comparison-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 18px;
            color: var(--text-dark);
        }
        .comparison-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text-light);
            font-weight: 600;
        }
        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .comparison-list li {
            font-size: 14px;
            color: var(--text-mid);
            padding: 9px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
            border-bottom: 1px dashed var(--border-color);
        }
        .comparison-list li:last-child {
            border-bottom: none;
        }
        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 4px;
            font-size: 15px;
        }
        .comparison-card.highlight .comparison-list li i {
            color: var(--accent-bamboo);
        }
        .comparison-card.neutral .comparison-list li i {
            color: #B0BEC5;
        }

        /* 时间线/步骤 */
        .steps-timeline {
            position: relative;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .step-item {
            position: relative;
            text-align: center;
            padding: 0 12px;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(74, 120, 201, 0.3);
        }
        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 28px;
            left: calc(50% + 28px);
            width: calc(100% - 56px);
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            z-index: 1;
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* 资讯 */
        .insights-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 20px;
        }
        .insight-card-large {
            background: #fff;
            border-radius: var(--radius-card-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition-base);
        }
        .insight-card-large:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .insight-card-large img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .insight-card-large .insight-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .insight-meta {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 8px;
            display: flex;
            gap: 12px;
        }
        .insight-card-large h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .insight-card-large p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .insight-side-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .insight-side-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 18px 20px;
            display: flex;
            gap: 14px;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .insight-side-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .insight-side-item img {
            width: 76px;
            height: 76px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .insight-side-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .insight-side-item .insight-meta {
            margin-bottom: 0;
            font-size: 11px;
        }

        /* 保障条 */
        .trust-bar-wrap {
            background: #fff;
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .trust-bar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
        }
        .trust-bar-item i {
            color: var(--primary);
            font-size: 20px;
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--primary-bg);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 套餐对比 */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .pricing-card {
            background: #fff;
            border-radius: var(--radius-card-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .pricing-card.recommended {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }
        .pricing-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent-amber);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 16px;
            letter-spacing: 0.5px;
        }
        .pricing-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 8px;
        }
        .pricing-price {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
        }
        .pricing-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-light);
        }
        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            flex: 1;
            text-align: left;
        }
        .pricing-features li {
            font-size: 13.5px;
            color: var(--text-mid);
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }
        .pricing-features li i {
            color: var(--accent-bamboo);
            margin-top: 3px;
            font-size: 13px;
            flex-shrink: 0;
        }

        /* 节日战役区 */
        .campaign-banner {
            background: linear-gradient(135deg, var(--primary-soft) 0%, #FDF8F2 50%, var(--accent-amber-light) 100%);
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border: 1px solid rgba(192, 154, 107, 0.25);
        }
        .campaign-banner h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .campaign-banner p {
            font-size: 15px;
            color: var(--text-mid);
            margin-bottom: 0;
            max-width: 520px;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }
        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border-radius: 0;
            transition: var(--transition-base);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-soft);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(74, 120, 201, 0.3);
            outline-offset: -2px;
        }
        .faq-accordion .accordion-button::after {
            transition: var(--transition-base);
        }
        .faq-accordion .accordion-body {
            padding: 18px 22px;
            font-size: 14.5px;
            color: var(--text-mid);
            line-height: 1.75;
            background: #fff;
        }

        /* 专题入口 */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .topic-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }
        .topic-card .topic-body {
            padding: 18px 20px;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .topic-card p {
            font-size: 13.5px;
            color: var(--text-mid);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* 预约表单 */
        .booking-card {
            background: #fff;
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            padding: 40px 36px;
            max-width: 640px;
            margin: 0 auto;
        }
        .booking-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .booking-card p {
            font-size: 15px;
            color: var(--text-mid);
            margin-bottom: 24px;
        }
        .booking-form .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .booking-form .form-control {
            min-height: 46px;
            border-radius: var(--radius-input);
            border: 1.5px solid var(--border-color);
            background: var(--bg-soft);
            color: var(--text-dark);
            padding: 10px 14px;
            font-size: 15px;
            transition: var(--transition-base);
        }
        .booking-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(74, 120, 201, 0.12);
            background: #fff;
        }
        .booking-form .form-control::placeholder {
            color: var(--text-light);
        }
        .booking-form textarea.form-control {
            min-height: 96px;
            resize: vertical;
        }
        .booking-form .btn-primary-custom {
            width: 100%;
            min-height: 48px;
            font-size: 16px;
            justify-content: center;
        }

        /* 文化专题 */
        .culture-feature-card {
            background: #fff;
            border-radius: var(--radius-card-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
        }
        .culture-feature-card img {
            width: 100%;
            height: 100%;
            aspect-ratio: 16/12;
            object-fit: cover;
        }
        .culture-feature-body {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .culture-episode-tag {
            display: inline-block;
            background: var(--accent-amber-light);
            color: var(--accent-amber);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 6px 14px;
            border-radius: 16px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .culture-feature-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .culture-feature-body p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* 底部固定CTA */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -4px 20px rgba(74, 120, 201, 0.08);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform 0.35s ease;
        }
        .sticky-cta-bar.visible {
            transform: translateY(0);
        }
        .sticky-cta-bar .container-custom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sticky-cta-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0;
        }
        .sticky-cta-bar .btn-primary-custom {
            padding: 10px 22px;
            font-size: 15px;
            min-height: 40px;
        }

        /* 页脚 */
        .footer-custom {
            background: #F7F9FC;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-bottom: 56px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo:hover {
            color: var(--primary);
        }
        .footer-desc {
            font-size: 13.5px;
            color: var(--text-mid);
            line-height: 1.75;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: flex-end;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-mid);
            font-weight: 500;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 12.5px;
            color: var(--text-light);
            text-align: center;
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 17px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .section-title {
                font-size: 26px;
            }
            .kpi-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 20px;
                gap: 16px;
            }
            .kpi-item:nth-child(2) {
                border-right: none;
            }
            .kpi-item {
                border-right: 1px solid var(--border-color);
            }
            .masters-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .comparison-divider {
                display: none;
            }
            .steps-timeline {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .step-item:nth-child(3)::after {
                display: none;
            }
            .trust-bar-wrap {
                grid-template-columns: repeat(3, 1fr);
            }
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .culture-feature-card {
                grid-template-columns: 1fr;
            }
            .culture-feature-card img {
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 767.98px) {
            .navbar-custom {
                padding: 10px 0;
            }
            .navbar-brand-logo {
                font-size: 16px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
                border-radius: 8px;
            }
            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-title {
                font-size: 22px;
            }
            .hero-section {
                padding: 32px 0 48px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-desc {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .hero-compare-wrapper {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 14px;
                margin-top: 24px;
            }
            .compare-card {
                padding: 16px;
            }
            .compare-card h3 {
                font-size: 15px;
            }
            .compare-list li {
                font-size: 12.5px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 12px 20px;
                font-size: 14px;
                min-height: 44px;
            }
            .kpi-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px 16px;
                margin-top: -10px;
            }
            .kpi-number {
                font-size: 28px;
            }
            .kpi-label {
                font-size: 12px;
            }
            .scene-row,
            .scene-row.reverse {
                grid-template-columns: 1fr;
                gap: 18px;
                margin-bottom: 28px;
            }
            .scene-text h3 {
                font-size: 18px;
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .masters-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .master-card h3 {
                font-size: 15px;
            }
            .review-card {
                padding: 16px 18px;
                gap: 12px;
            }
            .review-number {
                font-size: 22px;
                min-width: 30px;
            }
            .review-text {
                font-size: 13.5px;
            }
            .steps-timeline {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-item:not(:last-child)::after {
                display: none;
            }
            .step-item {
                text-align: left;
                display: flex;
                align-items: center;
                gap: 14px;
                padding: 0;
            }
            .step-number {
                margin: 0;
                width: 44px;
                height: 44px;
                font-size: 18px;
                flex-shrink: 0;
            }
            .step-item h3 {
                font-size: 15px;
                margin-bottom: 4px;
            }
            .step-item p {
                font-size: 12.5px;
            }
            .insights-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .insight-side-item img {
                width: 60px;
                height: 60px;
            }
            .trust-bar-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 20px;
            }
            .trust-bar-item {
                font-size: 12.5px;
                gap: 8px;
            }
            .trust-bar-item i {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .campaign-banner {
                padding: 24px 20px;
                flex-direction: column;
                text-align: center;
            }
            .campaign-banner h3 {
                font-size: 20px;
            }
            .faq-accordion .accordion-button {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-accordion .accordion-body {
                font-size: 13px;
                padding: 14px 16px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .booking-card {
                padding: 24px 20px;
            }
            .booking-card h2 {
                font-size: 22px;
            }
            .culture-feature-card {
                grid-template-columns: 1fr;
            }
            .culture-feature-body {
                padding: 22px 18px;
            }
            .culture-feature-body h3 {
                font-size: 18px;
            }
            .footer-custom {
                padding: 32px 0 20px;
                margin-bottom: 64px;
            }
            .footer-links {
                justify-content: flex-start;
                gap: 14px;
                margin-top: 16px;
            }
            .sticky-cta-bar .container-custom {
                gap: 10px;
            }
            .sticky-cta-text {
                font-size: 13px;
            }
            .sticky-cta-bar .btn-primary-custom {
                padding: 8px 16px;
                font-size: 13px;
                min-height: 36px;
            }
        }

        @media (max-width: 519.98px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-title {
                font-size: 23px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-desc {
                font-size: 13.5px;
                line-height: 1.75;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
            .hero-trust-badges {
                gap: 10px;
                flex-wrap: wrap;
            }
            .trust-badge {
                font-size: 11px;
            }
            .kpi-bar {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                padding: 16px 12px;
            }
            .kpi-number {
                font-size: 24px;
            }
            .kpi-label {
                font-size: 11px;
            }
            .section-title {
                font-size: 20px;
            }
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .masters-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .master-card img {
                aspect-ratio: 16/10;
            }
            .trust-bar-wrap {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px;
            }
            .comparison-card {
                padding: 20px 18px;
            }
            .comparison-card h3 {
                font-size: 17px;
            }
            .comparison-list li {
                font-size: 12.5px;
            }
            .insight-side-item {
                padding: 14px;
                gap: 10px;
            }
            .insight-side-item h4 {
                font-size: 13px;
            }
            .campaign-banner {
                padding: 20px 16px;
            }
            .campaign-banner h3 {
                font-size: 18px;
            }
            .campaign-banner p {
                font-size: 13.5px;
            }
            .topic-card h3 {
                font-size: 15px;
            }
            .topic-card p {
                font-size: 12.5px;
            }
            .culture-feature-body h3 {
                font-size: 16px;
            }
            .sticky-cta-bar .container-custom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

/* 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}