/* roulang page: index */
:root {
            --primary: #1a3c34;
            --primary-light: #2d5a4a;
            --primary-dark: #11272a;
            --accent: #c8a877;
            --accent-light: #e8d5b5;
            --accent-dark: #a08a5e;
            --bg: #faf8f5;
            --bg-alt: #f0ece6;
            --bg-dark: #132a26;
            --text: #2d2a26;
            --text-light: #6b645c;
            --text-lighter: #9a9288;
            --border: #e0dad2;
            --white: #ffffff;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 24px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            display: inline-block;
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }

        .main-nav a:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }

        .main-nav a.active {
            background: var(--primary);
            color: var(--white);
            box-shadow: var(--shadow-sm);
        }

        .header-cta {
            margin-left: 16px;
            white-space: nowrap;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 6px 10px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(26, 60, 52, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 60, 52, 0.3);
        }

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

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

        .btn-accent {
            background: var(--accent);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(200, 168, 119, 0.3);
        }

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

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--bg) 0%, #f3ede4 60%, #e8dfd2 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 168, 119, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero .grid-container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero h1 {
            font-size: 2.6rem;
            line-height: 1.25;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 1.08rem;
            color: var(--text-light);
            max-width: 540px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-points {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
        }

        .hero-point {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
        }

        .hero-point i {
            color: var(--accent);
            font-size: 1.2rem;
        }

        .compare-cards {
            display: flex;
            gap: 20px;
            margin-left: 20px;
            position: relative;
        }

        .compare-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            flex: 1;
            transition: var(--transition);
            position: relative;
        }

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

        .compare-card.recommended {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
            box-shadow: 0 12px 32px rgba(26, 60, 52, 0.25);
            transform: scale(1.03);
        }

        .recommend-tag {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent);
            color: var(--white);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 50px;
        }

        .compare-label {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .compare-price {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .recommended .compare-price {
            color: var(--accent-light);
        }

        .compare-price span {
            font-size: 1rem;
            font-weight: 400;
            color: var(--text-light);
        }

        .recommended .compare-price span {
            color: rgba(255, 255, 255, 0.7);
        }

        .compare-features {
            margin-bottom: 24px;
            padding: 0;
        }

        .compare-features li {
            padding: 6px 0;
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-features li i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .recommended .compare-features li i {
            color: var(--accent-light);
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-white {
            background: var(--white);
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-header .tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-header h2 {
            font-size: 2.1rem;
            color: var(--primary-dark);
            margin-bottom: 12px;
            font-weight: 700;
            line-height: 1.3;
        }

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

        /* ===== News Section ===== */
        .news-section .grid-margin-x {
            margin-left: -15px;
            margin-right: -15px;
        }

        .news-list {
            background: var(--white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .news-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .news-item:hover {
            background: var(--bg);
            padding-left: 30px;
        }

        .news-item a {
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text);
            flex: 1;
        }

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

        .news-item .date {
            font-size: 0.82rem;
            color: var(--text-lighter);
            margin-left: 16px;
            white-space: nowrap;
        }

        .news-sidebar {
            background: linear-gradient(145deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius);
            padding: 32px 28px;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }

        .news-sidebar h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .news-sidebar ul li {
            padding: 8px 0;
            font-size: 0.92rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .news-sidebar ul li:last-child {
            border-bottom: none;
        }

        .news-sidebar ul li a {
            color: rgba(255, 255, 255, 0.85);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-sidebar ul li a:hover {
            color: var(--accent-light);
        }

        .news-sidebar ul li i {
            font-size: 0.6rem;
            color: var(--accent);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg-dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 100%;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.12;
        }

        .stats-grid {
            display: flex;
            justify-content: space-around;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            text-align: center;
            color: var(--white);
            padding: 20px 12px;
            flex: 1;
            min-width: 180px;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== Services ===== */
        .service-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transition: var(--transition);
            transform-origin: left;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            width: 56px;
            height: 56px;
            background: var(--bg-alt);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== Comparison ===== */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .compare-panel {
            padding: 40px 36px;
        }

        .compare-panel.old {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }

        .compare-panel.new {
            background: linear-gradient(145deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: var(--white);
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            position: relative;
        }

        .compare-panel h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-panel ul li {
            padding: 8px 0;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .compare-panel.new ul li {
            border-bottom-color: rgba(255, 255, 255, 0.12);
        }

        .compare-panel ul li i {
            width: 22px;
            text-align: center;
        }

        .compare-panel.old i.fa-xmark {
            color: #c0392b;
        }

        .compare-panel.new i.fa-check {
            color: var(--accent-light);
        }

        /* ===== Gallery ===== */
        .gallery-card {
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .gallery-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .gallery-card img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

        .gallery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
            color: var(--white);
            padding: 40px 20px 20px;
        }

        .gallery-overlay h3 {
            font-size: 1.1rem;
            font-weight: 600;
        }

        .gallery-overlay p {
            font-size: 0.85rem;
            opacity: 0.9;
            margin: 4px 0 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 28px;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font);
            transition: var(--transition);
        }

        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .faq-question.active {
            color: var(--primary);
        }

        .faq-question.active i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-answer.open {
            padding: 0 28px 24px;
            max-height: 400px;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(var(--accent), var(--border));
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            position: absolute;
            top: 30px;
            width: 16px;
            height: 16px;
            background: var(--accent);
            border-radius: 50%;
            border: 3px solid var(--white);
            box-shadow: var(--shadow-sm);
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }

        .timeline-content {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .timeline-content .year {
            color: var(--accent-dark);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 4px;
        }

        .timeline-content h3 {
            font-size: 1.05rem;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .timeline-content p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.15;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            color: var(--white);
        }

        .cta-copy h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-copy p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .cta-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }

        .cta-points i {
            color: var(--accent);
        }

        .cta-form {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
        }

        .cta-form h3 {
            font-size: 1.4rem;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .cta-form p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-family: var(--font);
            font-size: 0.95rem;
            transition: var(--transition);
            background: var(--bg);
        }

        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--accent);
            background: var(--white);
            box-shadow: 0 0 0 3px rgba(200, 168, 119, 0.2);
        }

        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }

        .form-tip {
            font-size: 0.78rem;
            color: var(--text-lighter);
            margin-top: 12px;
            text-align: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
            font-size: 0.9rem;
        }

        .footer-main {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .footer-brand {
            flex: 1;
            min-width: 260px;
        }

        .footer-brand .logo {
            color: var(--white);
            margin-bottom: 14px;
            font-size: 1.2rem;
        }

        .footer-brand p {
            max-width: 320px;
            line-height: 1.7;
            font-size: 0.88rem;
        }

        .footer-links {
            display: flex;
            gap: 60px;
            flex-wrap: wrap;
        }

        .footer-links h4 {
            color: var(--white);
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 600;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .hero {
                padding: 120px 0 60px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .compare-cards {
                flex-direction: column;
                margin-left: 0;
                margin-top: 40px;
            }
            .compare-card.recommended {
                transform: scale(1);
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item,
            .timeline-item:nth-child(even),
            .timeline-item:nth-child(odd) {
                width: 100%;
                left: 0;
                text-align: left;
                padding: 12px 20px 12px 60px;
            }
            .timeline-dot,
            .timeline-item:nth-child(odd) .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 12px;
                right: auto;
            }
            .cta-inner {
                grid-template-columns: 1fr;
            }
        }

        @media screen and (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                box-shadow: var(--shadow-md);
            }
            .main-nav.open {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 12px 16px;
            }
            .header-cta {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .stats-grid {
                flex-direction: column;
                align-items: center;
            }
            .stat-card {
                min-width: 140px;
            }
            .comparison-wrap {
                grid-template-columns: 1fr;
            }
            .compare-panel.old {
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }
            .compare-panel.new {
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .footer-main {
                flex-direction: column;
                gap: 30px;
            }
            .footer-links {
                gap: 30px;
            }
            .cta-form {
                padding: 28px 20px;
            }
        }

        @media screen and (max-width: 520px) {
            .container,
            .header-inner {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero h1 {
                font-size: 1.55rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-btns {
                flex-direction: column;
                width: 100%;
            }
            .hero-btns .btn {
                width: 100%;
            }
            .compare-features li {
                font-size: 0.85rem;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 16px 20px;
            }
            .news-item .date {
                margin-left: 0;
                font-size: 0.75rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1a3c34;
            --primary-light: #2d5a4a;
            --primary-dark: #11272a;
            --accent: #c8a877;
            --accent-light: #e8d5b5;
            --accent-dark: #a08a5e;
            --bg: #faf8f5;
            --bg-alt: #f0ece6;
            --bg-dark: #132a26;
            --text: #2d2a26;
            --text-light: #6b645c;
            --text-lighter: #9a9288;
            --border: #e0dad2;
            --white: #ffffff;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .grid-container {
            max-width: 1200px;
        }
        .section {
            padding: 88px 0;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-head p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.8;
        }
        .section-head.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-head.center p {
            margin-left: auto;
            margin-right: auto;
        }
        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 24px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .main-nav a:hover {
            background: var(--bg-alt);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: var(--white);
            box-shadow: var(--shadow-sm);
        }
        .header-cta {
            margin-left: 12px;
            white-space: nowrap;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 6px 10px;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            line-height: 1.4;
            font-family: var(--font);
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(26, 60, 52, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 60, 52, 0.3);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(200, 168, 119, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 34px;
            font-size: 1.02rem;
        }
        .btn-block {
            width: 100%;
        }
        .btn:focus,
        .btn:focus-visible {
            outline: 3px solid rgba(200, 168, 119, 0.5);
            outline-offset: 2px;
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, rgba(18, 38, 30, 0.88) 0%, rgba(26, 60, 52, 0.82) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            color: var(--white);
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to bottom, transparent, rgba(250, 248, 245, 1));
            pointer-events: none;
        }
        .hero .grid-container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 50px;
            padding: 8px 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-light);
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: var(--white);
        }
        .hero-desc {
            font-size: 1.15rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }
        .hero-actions .btn-outline {
            border-color: rgba(255, 255, 255, 0.7);
            color: var(--white);
        }
        .hero-actions .btn-outline:hover {
            background: var(--white);
            color: var(--primary);
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat span {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent);
        }
        .hero-stat small {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        /* Invite Card */
        .invite-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            color: var(--text);
            position: relative;
        }
        .invite-card::before {
            content: "";
            position: absolute;
            top: -10px;
            right: 28px;
            width: 60px;
            height: 60px;
            background: radial-gradient(circle, rgba(200, 168, 119, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }
        .invite-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .invite-card>p {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 22px;
            line-height: 1.6;
        }
        .reward-list {
            margin-bottom: 24px;
        }
        .reward-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.92rem;
            color: var(--text);
        }
        .reward-list li:last-child {
            border-bottom: none;
        }
        .reward-list li i {
            color: var(--accent);
            font-size: 1.1rem;
            width: 22px;
            text-align: center;
        }
        .progress-block {
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 18px 20px;
            margin-bottom: 22px;
        }
        .progress-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 10px;
            font-weight: 500;
        }
        .progress {
            height: 8px;
            background: var(--border);
            border-radius: 50px;
            overflow: hidden;
            margin: 0;
        }
        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), var(--accent-dark));
            border-radius: 50px;
            transition: width 1s ease;
        }
        /* ===== Metrics ===== */
        .metrics {
            background: var(--bg);
            padding: 60px 0;
        }
        .metric-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(224, 218, 210, 0.5);
            transition: var(--transition);
            height: 100%;
        }
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .metric-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .metric-num {
            display: block;
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 0.95rem;
            color: var(--text-light);
        }
        /* ===== Service Matrix ===== */
        .service-matrix {
            background: var(--bg-alt);
        }
        .service-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(224, 218, 210, 0.4);
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .service-card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.25), transparent 60%);
        }
        .card-body {
            padding: 26px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-body .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }
        .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .card-tags span {
            display: inline-block;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 5px 14px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-light);
        }
        /* ===== Comparison ===== */
        .comparison {
            background: var(--bg);
        }
        .compare-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 32px;
        }
        .compare-card {
            border-radius: var(--radius);
            padding: 28px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            background: var(--white);
        }
        .compare-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .compare-card h4 i {
            font-size: 1.2rem;
        }
        .compare-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 9px 0;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            border-bottom: 1px dashed rgba(224, 218, 210, 0.6);
        }
        .compare-card ul li:last-child {
            border-bottom: none;
        }
        .compare-card ul li i {
            margin-top: 3px;
            font-size: 0.9rem;
        }
        .compare-bad h4 {
            color: #b0645a;
        }
        .compare-bad ul li i {
            color: #d48a80;
        }
        .compare-good h4 {
            color: var(--primary);
        }
        .compare-good ul li i {
            color: #5c8d6f;
        }
        .comparison-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            height: 100%;
            min-height: 360px;
        }
        .comparison-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-alt);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 16px;
            overflow: hidden;
            border: 1px solid rgba(224, 218, 210, 0.5);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 22px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-family: var(--font);
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-question:hover {
            background: rgba(240, 236, 230, 0.4);
        }
        .faq-question:focus {
            outline: 2px solid rgba(200, 168, 119, 0.4);
            outline-offset: -2px;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 26px 22px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        /* ===== Inquiry / Form ===== */
        .inquiry {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: var(--white);
        }
        .inquiry .section-head h2 {
            color: var(--white);
        }
        .inquiry .section-head p {
            color: rgba(255, 255, 255, 0.8);
        }
        .inquiry-info {
            margin-top: 32px;
        }
        .inquiry-info-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 24px;
        }
        .inquiry-info-item i {
            font-size: 1.3rem;
            color: var(--accent);
            margin-top: 4px;
            width: 32px;
            text-align: center;
        }
        .inquiry-info-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .inquiry-info-item p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.6;
        }
        .inquiry-form {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
            color: var(--text);
        }
        .inquiry-form label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            display: block;
        }
        .inquiry-form input,
        .inquiry-form select,
        .inquiry-form textarea {
            width: 100%;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            font-size: 0.95rem;
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            transition: var(--transition);
            margin-bottom: 18px;
            box-shadow: none;
        }
        .inquiry-form input:focus,
        .inquiry-form select:focus,
        .inquiry-form textarea:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 168, 119, 0.2);
            background: var(--white);
        }
        .inquiry-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .inquiry-form select {
            appearance: auto;
        }
        .form-hint {
            font-size: 0.82rem;
            color: var(--text-lighter);
            margin-top: -10px;
            margin-bottom: 18px;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
        }
        .site-footer .container {
            padding-top: 56px;
            padding-bottom: 20px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-links ul li {
            margin-bottom: 12px;
        }
        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .section {
                padding: 64px 0;
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                height: 64px;
                padding: 0 16px;
            }
            .logo {
                font-size: 1rem;
                gap: 8px;
            }
            .main-nav a {
                padding: 8px 12px;
                font-size: 0.82rem;
            }
            .header-cta .btn {
                padding: 8px 18px;
                font-size: 0.82rem;
            }
            .hero {
                padding: 110px 0 60px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .compare-wrap {
                grid-template-columns: 1fr;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 52px 0;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .invite-card {
                padding: 28px 22px;
                margin-top: 32px;
            }
            .inquiry-form {
                padding: 24px;
            }
        }
        @media screen and (max-width: 520px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 14px;
                gap: 8px;
            }
            .main-nav ul {
                gap: 4px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .header-cta .btn {
                padding: 6px 14px;
                font-size: 0.76rem;
            }
            .logo {
                font-size: 0.95rem;
            }
            .hero {
                padding: 120px 0 50px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat span {
                font-size: 1.2rem;
            }
            .footer-links {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .metric-card {
                padding: 24px 16px;
            }
            .metric-num {
                font-size: 1.7rem;
            }
            .card-body {
                padding: 20px 18px;
            }
        }