/* roulang page: index */
:root {
            --primary: #1b6b99;
            --primary-dark: #0f4666;
            --primary-light: #e8f3fa;
            --accent: #c29a62;
            --accent-light: #f6efe3;
            --bg: #f5f9fc;
            --surface: #ffffff;
            --text: #1f2d3d;
            --text-muted: #5c7080;
            --border: #dbe7f1;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 12px 32px rgba(27, 107, 153, 0.08);
            --shadow-hover: 0 20px 44px rgba(27, 107, 153, 0.14);
            --transition: all .28s ease;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 84px;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .navbar {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            box-shadow: 0 4px 20px rgba(15, 70, 102, 0.04);
        }
        .navbar .container {
            align-items: center;
        }
        .navbar-brand {
            font-size: 1.28rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: .5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .navbar-brand i {
            color: var(--accent);
            font-size: 1.35rem;
        }
        .navbar-brand:hover {
            color: var(--primary);
        }
        .navbar .nav-link {
            font-size: .96rem;
            font-weight: 500;
            color: var(--text);
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition);
        }
        .navbar .nav-link:hover,
        .navbar .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-cta {
            margin-left: 12px;
            padding: 9px 22px !important;
            background: var(--primary) !important;
            border: none;
            border-radius: 30px;
            color: #fff !important;
            font-weight: 600 !important;
            font-size: .92rem !important;
            line-height: 1.4;
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 107, 153, 0.25);
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            border-radius: 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-light);
        }
        .navbar-toggler-icon {
            width: 1.3em;
            height: 1.3em;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(120deg, rgba(232, 243, 250, 0.94) 0%, rgba(255, 255, 255, 0.9) 55%, rgba(245, 249, 252, 0.92) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 130px 0 90px;
            position: relative;
            border-bottom: 1px solid var(--border);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-light);
            border: 1px solid rgba(194, 154, 98, 0.35);
            color: #8a6a3d;
            font-size: .85rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 22px;
        }
        .hero h1 {
            font-size: clamp(1.85rem, 4vw, 2.75rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary-dark);
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .hero h1 .divider {
            color: var(--accent);
            font-weight: 400;
        }
        .hero-lead {
            font-size: 1.08rem;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 38px;
        }
        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
        }
        .hero-points .point {
            text-align: left;
        }
        .hero-points strong {
            display: block;
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-points span {
            font-size: .86rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* Hero 演示卡片 */
        .hero-demo {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 20px;
            box-shadow: var(--shadow);
            overflow: hidden;
            margin-left: 30px;
            transition: var(--transition);
        }
        .hero-demo:hover {
            box-shadow: var(--shadow-hover);
        }
        .demo-header {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: .98rem;
            padding: 16px 22px;
            border-bottom: 1px solid var(--border);
        }
        .demo-header i {
            color: var(--primary);
        }
        .demo-body {
            padding: 22px;
        }
        .demo-body .form-group {
            margin-bottom: 16px;
        }
        .demo-body label {
            display: block;
            font-size: .84rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .demo-body select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--bg);
            color: var(--text);
            font-size: .92rem;
            transition: var(--transition);
        }
        .demo-body select:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(27, 107, 153, 0.1);
        }

        /* ===== 通用按钮 ===== */
        .btn {
            border-radius: 30px;
            padding: 11px 26px;
            font-weight: 600;
            font-size: .95rem;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(27, 107, 153, 0.24);
        }
        .btn-outline-primary {
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(27, 107, 153, 0.2);
        }
        .btn:focus,
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            box-shadow: none;
        }
        .btn-lg {
            padding: 13px 32px;
            font-size: 1rem;
        }
        .btn-light {
            background: #fff;
            border: none;
            color: var(--primary-dark);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 255, 255, 0.18);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
        }
        .section.bg-light {
            background: #f0f6fb;
        }
        .section-head {
            max-width: 720px;
            margin: 0 auto 50px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: .84rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 5px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: clamp(1.6rem, 3.2vw, 2.3rem);
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-head p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== 场景种草 ===== */
        .scenes .row {
            row-gap: 26px;
        }
        .scene-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .scene-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .scene-info {
            padding: 22px 22px 24px;
            flex: 1;
        }
        .scene-info h3 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .scene-info p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== 核心亮点 ===== */
        .features {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            inset: -2px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, rgba(27, 107, 153, 0.06), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.55rem;
            margin: 0 auto 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.06);
        }
        .feature-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 爆款清单 ===== */
        .package-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 28px;
            height: 100%;
            box-shadow: var(--shadow);
            position: relative;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .package-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .package-card.recommended {
            border: 2px solid var(--primary);
        }
        .package-badge {
            position: absolute;
            top: -14px;
            left: 26px;
            background: var(--accent);
            color: #fff;
            font-size: .78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            letter-spacing: .5px;
        }
        .package-badge.hot {
            background: var(--primary);
        }
        .package-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .package-card .meta {
            font-size: .88rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .package-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 22px;
            flex: 1;
        }
        .package-card ul li {
            font-size: .92rem;
            color: var(--text);
            padding: 7px 0;
            border-bottom: 1px dashed var(--border);
            position: relative;
            padding-left: 26px;
        }
        .package-card ul li:last-child {
            border-bottom: none;
        }
        .package-card ul li i {
            position: absolute;
            left: 0;
            top: 12px;
            color: var(--primary);
            font-size: .8rem;
        }
        .package-price {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .package-price small {
            font-size: .85rem;
            font-weight: 400;
            color: var(--text-muted);
        }
        .package-card .btn {
            width: 100%;
        }

        /* ===== 流程步骤 ===== */
        .process .step-item {
            text-align: center;
            padding: 24px 18px;
            position: relative;
        }
        .step-num {
            position: relative;
            width: 76px;
            height: 76px;
            margin: 0 auto 18px;
        }
        .step-num span {
            width: 76px;
            height: 76px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.7rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 24px rgba(27, 107, 153, 0.25);
            transition: var(--transition);
        }
        .step-item:hover .step-num span {
            background: var(--accent);
            transform: translateY(-4px);
            box-shadow: 0 14px 30px rgba(194, 154, 98, 0.3);
        }
        .step-item h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .step-arrow {
            position: absolute;
            top: 40px;
            right: -18px;
            color: var(--accent);
            font-size: 1.1rem;
            opacity: .6;
            z-index: 2;
        }
        @media (max-width: 767px) {
            .step-arrow {
                display: none;
            }
        }

        /* ===== 评价墙 ===== */
        .reviews .review-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 26px 24px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .review-stars {
            color: var(--accent);
            font-size: .9rem;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .review-card .content {
            font-size: .95rem;
            color: var(--text);
            line-height: 1.75;
            margin-bottom: 18px;
        }
        .review-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .review-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: .95rem;
        }
        .review-card .author-name {
            font-weight: 600;
            font-size: .92rem;
            color: var(--text);
            line-height: 1.3;
        }
        .review-card .author-type {
            font-size: .8rem;
            color: var(--text-muted);
        }

        /* ===== 资讯区 ===== */
        .news {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .news-list-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
            transition: var(--transition);
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            padding-left: 6px;
        }
        .news-list-item .date {
            font-size: .84rem;
            color: var(--text-muted);
            flex-shrink: 0;
            padding-top: 4px;
        }
        .news-list-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .news-list-item:hover h3 {
            color: var(--primary);
        }
        .news-list-item p {
            font-size: .88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        .news-sidebar {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
        }
        .news-sidebar .sidebar-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .tag-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: .84rem;
            padding: 6px 14px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .tag-item:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .sidebar-tip {
            background: var(--accent-light);
            border: 1px solid rgba(194, 154, 98, 0.25);
            border-radius: var(--radius-sm);
            padding: 18px 20px;
        }
        .sidebar-tip .tip-title {
            font-weight: 700;
            color: #8a6a3d;
            font-size: .95rem;
            margin-bottom: 6px;
        }
        .sidebar-tip p {
            font-size: .86rem;
            color: #7a6a50;
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .sidebar-tip a {
            font-size: .86rem;
            font-weight: 600;
            color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            background: var(--surface);
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(27, 107, 153, 0.03);
            transition: var(--transition);
        }
        .faq .accordion-item:last-child {
            margin-bottom: 0;
        }
        .faq .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            padding: 18px 24px;
            background: var(--surface);
            transition: var(--transition);
        }
        .faq .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
            box-shadow: none;
        }
        .faq .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-light);
        }
        .faq .accordion-button::after {
            transition: var(--transition);
        }
        .faq .accordion-body {
            padding: 16px 24px 22px;
            font-size: .94rem;
            color: var(--text-muted);
            line-height: 1.75;
            background: var(--surface);
        }

        /* ===== CTA ===== */
        .cta {
            padding: 0;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2a86b8 100%);
            border-radius: 24px;
            padding: 60px 48px;
            text-align: center;
            box-shadow: 0 24px 60px rgba(15, 70, 102, 0.3);
            position: relative;
            overflow: hidden;
            margin: 90px 0 90px;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -70px;
            right: -70px;
            width: 230px;
            height: 230px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }
        .cta-box::after {
            content: "";
            position: absolute;
            bottom: -110px;
            left: -40px;
            width: 260px;
            height: 260px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
        }
        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 30px;
            position: relative;
            z-index: 1;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .footer {
            background: #0d2f43;
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 40px;
            margin-top: 30px;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: .5px;
        }
        .footer-brand i {
            color: var(--accent);
            margin-right: 6px;
        }
        .footer p {
            font-size: .88rem;
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 18px;
            margin-top: 18px;
            font-size: .82rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            margin-right: 18px;
            font-size: .88rem;
        }
        .footer-links a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .hero {
                padding: 110px 0 70px;
            }
            .hero-demo {
                margin-left: 0;
                margin-top: 44px;
            }
            .navbar-collapse {
                padding: 14px 0 6px;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px !important;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 64px 0;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .hero-points {
                gap: 18px;
                justify-content: space-between;
            }
            .hero-points strong {
                font-size: 1.3rem;
            }
            .cta-box {
                padding: 44px 24px;
                margin: 64px 0;
            }
            .cta-actions .btn {
                width: 100%;
                margin-bottom: 6px;
            }
            .package-card {
                margin-bottom: 18px;
            }
            .news-sidebar {
                margin-top: 24px;
            }
            .footer-links a {
                display: inline-block;
                margin-bottom: 8px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-points {
                flex-direction: column;
                gap: 14px;
            }
            .hero-points .point {
                display: flex;
                align-items: baseline;
                gap: 10px;
            }
            .hero-points strong {
                font-size: 1.2rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .section-head {
                margin-bottom: 34px;
            }
        }