/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #B47B4C;
            --primary-dark: #9A6440;
            --primary-light: #C69C70;
            --primary-tint: rgba(180, 123, 76, 0.08);
            --accent: #6E8B74;
            --accent-tint: rgba(110, 139, 116, 0.12);
            --bg: #F7F4EF;
            --bg-card: #FFFFFF;
            --bg-dark: #2B211A;
            --bg-dark-light: #3A2D24;
            --text: #2B211A;
            --text-light: #6B5D50;
            --text-muted: #8A7B6C;
            --border: rgba(43, 33, 26, 0.12);
            --border-dark: rgba(43, 33, 26, 0.2);
            --font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --font-size-sm: 13px;
            --font-size-base: 16px;
            --font-size-lg: 18px;
            --font-size-xl: 22px;
            --font-size-2xl: 28px;
            --font-size-3xl: 34px;
            --line-height-base: 1.8;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 1px 2px rgba(43, 33, 26, 0.06);
            --shadow-md: 0 8px 24px rgba(43, 33, 26, 0.12);
            --shadow-lg: 0 12px 32px rgba(43, 33, 26, 0.16);
            --space-section: 80px;
            --space-section-md: 56px;
            --space-section-sm: 40px;
            --container-width: 1200px;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: var(--font-size-base);
            line-height: var(--line-height-base);
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: var(--font-size-base);
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: var(--space-section) 0;
        }
        .section-label {
            display: inline-block;
            font-size: var(--font-size-sm);
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--primary);
            background: var(--primary-tint);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: var(--font-size-2xl);
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-desc {
            font-size: var(--font-size-base);
            color: var(--text-light);
            line-height: var(--line-height-base);
            max-width: 640px;
            margin-bottom: 40px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            border: 2px solid transparent;
            min-height: 44px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(180, 123, 76, 0.35);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(154, 100, 64, 0.4);
            text-decoration: none;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(154, 100, 64, 0.3);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background-color: var(--primary-tint);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            text-decoration: none;
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-white {
            background-color: #fff;
            color: var(--primary-dark);
            border-color: #fff;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
        }
        .btn-white:hover {
            background-color: rgba(255, 255, 255, 0.9);
            color: var(--primary-dark);
            transform: translateY(-2px);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 12px 24px;
            pointer-events: none;
        }
        .nav-capsule {
            max-width: var(--container-width);
            margin: 0 auto;
            background: rgba(247, 244, 239, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-sm);
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            pointer-events: auto;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled .nav-capsule {
            background: rgba(247, 244, 239, 0.92);
            box-shadow: var(--shadow-md);
        }
        .nav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: 0.5px;
            text-decoration: none;
        }
        .nav-brand:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .nav-menu a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            text-decoration: none;
            transition: all 0.25s ease;
        }
        .nav-menu a:hover {
            color: var(--text);
            background: rgba(180, 123, 76, 0.08);
        }
        .nav-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(154, 100, 64, 0.3);
            color: #fff;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            padding: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center 30%;
            min-height: 640px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(43, 33, 26, 0.75) 0%, rgba(43, 33, 26, 0.55) 50%, rgba(43, 33, 26, 0.35) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 60px;
            align-items: center;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .hero-cover {
            display: flex;
            justify-content: center;
        }
        .hero-cover-card {
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 280px;
            overflow: hidden;
            transform: rotate(-2deg);
            transition: transform 0.4s ease;
        }
        .hero-cover-card:hover {
            transform: rotate(0deg) scale(1.02);
        }
        .hero-cover-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            object-position: center 40%;
        }
        .hero-cover-meta {
            padding: 20px;
            text-align: center;
        }
        .hero-cover-brand {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: block;
            margin-bottom: 4px;
            letter-spacing: 2px;
        }
        .hero-cover-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .hero-cover-sub {
            font-size: 13px;
            color: var(--text-light);
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: var(--font-size-3xl);
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-toc {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .toc-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 34px;
            margin-right: 4px;
        }
        .toc-chip {
            display: inline-block;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            font-size: 13px;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== 指标看板 ========== */
        .stats-bar {
            background: var(--bg);
            padding: 0;
            margin-top: -40px;
            position: relative;
            z-index: 3;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px;
        }
        .stat-card {
            text-align: center;
            padding: 16px 8px;
            border-right: 1px solid var(--border);
        }
        .stat-card:last-child {
            border-right: none;
        }
        .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-light);
            display: block;
            margin-top: 8px;
        }

        /* ========== 服务矩阵 ========== */
        .services {
            background: var(--bg);
        }
        .services-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }
        .service-card-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .service-card-main:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .service-card-main img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            object-position: center 30%;
            transition: transform 0.3s ease;
        }
        .service-card-main:hover img {
            transform: scale(1.02);
        }
        .service-main-body {
            padding: 28px;
        }
        .service-tag {
            display: inline-block;
            background: var(--accent-tint);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 4px;
            margin-bottom: 12px;
        }
        .service-main-body h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .service-main-body p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.9;
        }
        .services-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .service-card-mini {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            flex: 1;
        }
        .service-card-mini:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .service-mini-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: var(--primary-tint);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
        }
        .service-mini-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .service-mini-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== 结果对比 ========== */
        .compare {
            background: var(--bg-card);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 2px 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .compare-divider {
            background: var(--border);
            width: 1px;
        }
        .compare-col {
            padding: 32px;
            border-radius: var(--radius-lg);
        }
        .compare-col-before {
            background: #F3F0EA;
            border: 1px solid var(--border);
        }
        .compare-col-after {
            background: var(--primary-tint);
            border-left: 4px solid var(--primary);
        }
        .compare-col h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text);
        }
        .compare-col ul {
            list-style: none;
        }
        .compare-col li {
            padding: 10px 0;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-light);
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }
        .compare-col-before li {
            color: var(--text-muted);
        }
        .compare-col-after li {
            color: var(--text);
            font-weight: 500;
        }
        .compare-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            line-height: 1;
            margin-top: 3px;
        }
        .compare-icon.no {
            background: rgba(163, 74, 58, 0.12);
            color: #A34A3A;
        }
        .compare-icon.yes {
            background: rgba(110, 139, 116, 0.15);
            color: var(--accent);
        }

        /* ========== 资讯区 ========== */
        .news {
            background: var(--bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .news-list {
            list-style: none;
        }
        .news-list li {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
            transition: padding-left 0.3s ease;
        }
        .news-list li:first-child {
            padding-top: 0;
        }
        .news-list a {
            font-size: 17px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            display: block;
            line-height: 1.6;
            transition: color 0.25s ease;
        }
        .news-list a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .news-list .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
            display: block;
        }
        .news-side {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px;
        }
        .news-side h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }
        .news-side p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .news-side .btn {
            width: 100%;
        }

        /* ========== FAQ ========== */
        .faq {
            background: var(--bg-card);
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--bg-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item.active {
            border-color: rgba(180, 123, 76, 0.3);
            box-shadow: var(--shadow-sm);
            background: rgba(180, 123, 76, 0.03);
            border-left: 3px solid var(--primary);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 20px 48px 20px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            position: relative;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.25s ease;
        }
        .faq-question:hover {
            background: rgba(180, 123, 76, 0.04);
        }
        .faq-question .faq-icon {
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-tint);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: translateY(-50%) rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-light);
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 20px;
        }

        /* ========== 转化表单 ========== */
        .contact {
            background: var(--bg);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 0.8fr 1.2fr;
            gap: 48px;
            align-items: start;
        }
        .contact-info {
            padding: 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }
        .contact-info h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text);
        }
        .contact-info-item {
            display: flex;
            gap: 14px;
            margin-bottom: 20px;
            align-items: flex-start;
        }
        .contact-info-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--primary-tint);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .contact-info-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 2px;
        }
        .contact-info-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .contact-form-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px;
        }
        .form-group {
            margin-bottom: 22px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #FDFCFA;
            font-size: 15px;
            color: var(--text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            min-height: 44px;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(180, 123, 76, 0.15);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
            line-height: 1.7;
        }
        .form-submit {
            width: 100%;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .form-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(180, 123, 76, 0.3);
        }
        .form-submit:active {
            transform: translateY(0);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 14px;
            line-height: 1.6;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 20px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(180, 123, 76, 0.3);
        }
        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand-sub {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--primary-light);
            text-decoration: underline;
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1023px) {
            :root {
                --space-section: 56px;
            }
            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-cover {
                display: none;
            }
            .hero-content {
                text-align: left;
            }
            .hero-desc {
                max-width: 100%;
            }
            .stats-grid {
                grid-template-columns: 2fr 2fr;
                padding: 24px;
                gap: 16px;
            }
            .stat-card {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .stat-card:nth-last-child(1),
            .stat-card:nth-last-child(2) {
                border-bottom: none;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .compare-divider {
                display: none;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            :root {
                --space-section: 40px;
                --font-size-3xl: 28px;
                --font-size-2xl: 22px;
            }
            body {
                font-size: 15px;
            }
            .site-header {
                padding: 8px 12px;
            }
            .nav-capsule {
                height: 56px;
                padding: 0 16px;
            }
            .nav-menu {
                position: fixed;
                top: 76px;
                left: 12px;
                right: 12px;
                background: rgba(247, 244, 239, 0.97);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-lg);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                gap: 8px;
                display: none;
                z-index: 999;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                display: block;
                padding: 14px 16px;
                border-radius: var(--radius-sm);
                text-align: center;
                font-size: 15px;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                padding: 100px 0 40px;
                min-height: auto;
            }
            .hero-inner {
                padding: 0 20px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-toc {
                gap: 8px;
            }
            .toc-chip {
                padding: 5px 14px;
                font-size: 12px;
            }
            .stats-bar {
                margin-top: -20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 26px;
            }
            .services-grid,
            .compare-grid,
            .news-grid,
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .service-card-main img {
                height: 200px;
            }
            .service-card-mini {
                flex-direction: column;
                gap: 12px;
            }
            .compare-col {
                padding: 20px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .contact-form-wrap {
                padding: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-inner {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .btn-secondary {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #B47B4C;
  --primary-dark: #A96F44;
  --primary-light: #C89B6E;
  --primary-tint: rgba(180, 123, 76, 0.08);
  --primary-tint-2: rgba(180, 123, 76, 0.05);
  --secondary: #6E8B74;
  --secondary-light: #E4EBE3;
  --dark: #2B211A;
  --dark-2: #3A2E25;
  --bg: #F7F4EF;
  --card-bg: #FFFFFF;
  --text: #2B211A;
  --text-light: #6B5D52;
  --border: rgba(43, 33, 26, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(43, 33, 26, 0.06);
  --shadow-md: 0 4px 16px rgba(43, 33, 26, 0.08);
  --shadow-lg: 0 8px 24px rgba(43, 33, 26, 0.12);
  --font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --space-section: 80px;
  --space-section-md: 56px;
  --space-section-sm: 40px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}
section {
  padding: var(--space-section) 0;
}
@media (max-width: 1023px) {
  section {
    padding: var(--space-section-md) 0;
  }
}
@media (max-width: 767px) {
  section {
    padding: var(--space-section-sm) 0;
  }
}
.section-header {
  margin-bottom: 40px;
}
.section-header .eyebrow {
  display: inline-block;
  background: var(--primary-tint);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 12px;
  color: var(--text);
}
.section-header p {
  font-size: 16px;
  color: var(--text-light);
  max-width: 640px;
}
@media (max-width: 767px) {
  .section-header h2 {
    font-size: 24px;
  }
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding-top: 14px;
  pointer-events: none;
}
.nav-capsule {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: rgba(247, 244, 239, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(43, 33, 26, 0.06);
  border-radius: var(--radius-pill);
  padding: 10px 20px 10px 24px;
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  margin-left: 16px;
  margin-right: 16px;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled .nav-capsule {
  background: rgba(247, 244, 239, 0.92);
  box-shadow: 0 6px 24px rgba(43, 33, 26, 0.14);
}
.nav-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.nav-brand:hover {
  color: var(--primary-dark);
  text-decoration: none;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}
.nav-menu a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.25s ease;
}
.nav-menu a:hover {
  background: var(--primary-tint);
  color: var(--primary-dark);
  text-decoration: none;
}
.nav-menu a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(180, 123, 76, 0.3);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 8px rgba(180, 123, 76, 0.28);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(180, 123, 76, 0.35);
}
.nav-cta:active {
  transform: translateY(0);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 10px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
@media (max-width: 767px) {
  .site-header {
    padding-top: 10px;
  }
  .nav-capsule {
    margin-left: 12px;
    margin-right: 12px;
    padding: 8px 14px 8px 18px;
    min-height: 58px;
  }
  .nav-brand {
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 12px;
    right: 12px;
    background: rgba(247, 244, 239, 0.97);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.3s ease;
  }
  .nav-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-menu a {
    padding: 12px 16px;
    font-size: 16px;
  }
  .nav-cta {
    display: none;
  }
}
@media (max-width: 1023px) and (min-width: 768px) {
  .nav-capsule {
    margin-left: 16px;
    margin-right: 16px;
  }
  .nav-menu a {
    padding: 8px 12px;
    font-size: 14px;
  }
}

/* ===== Sub Banner ===== */
.sub-banner {
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  padding: 120px 24px 64px;
}
.sub-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(43, 33, 26, 0.75) 0%, rgba(43, 33, 26, 0.45) 100%);
}
.sub-banner-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.sub-banner .breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 16px;
  color: rgba(255, 255, 255, 0.75);
}
.sub-banner .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}
.sub-banner .breadcrumb a:hover {
  color: #fff;
}
.sub-banner h1 {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.sub-banner .sub-banner-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  max-width: 560px;
  margin: 0 auto;
}
@media (max-width: 767px) {
  .sub-banner {
    min-height: auto;
    padding: 100px 20px 56px;
  }
  .sub-banner h1 {
    font-size: 28px;
  }
  .sub-banner .sub-banner-desc {
    font-size: 15px;
  }
}

/* ===== Category Cards ===== */
.category-cards {
  background: var(--bg);
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 767px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}
.space-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.space-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.space-card-figure {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.space-card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
  transition: transform 0.4s ease;
}
.space-card:hover .space-card-figure img {
  transform: scale(1.03);
}
.space-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.space-card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  background: var(--secondary-light);
  color: var(--secondary);
  padding: 3px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  align-self: flex-start;
}
.space-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--text);
}
.space-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-light);
  margin-bottom: 16px;
  flex: 1;
}
.space-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s ease;
}
.space-card-link:hover {
  color: var(--primary-dark);
  text-decoration: none;
}
.space-card-link::after {
  content: '→';
  font-size: 16px;
  transition: transform 0.2s ease;
}
.space-card-link:hover::after {
  transform: translateX(3px);
}

/* ===== Detail Section ===== */
.detail-section {
  background: #fff;
}
.detail-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) {
  .detail-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
.detail-copy h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
  color: var(--text);
}
.detail-copy h3 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--text);
}
.detail-copy p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text-light);
  margin-bottom: 14px;
}
.detail-figure {
  position: sticky;
  top: 100px;
}
.detail-figure img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}
.detail-figure figcaption {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 10px;
  text-align: center;
}
@media (max-width: 768px) {
  .detail-figure {
    position: static;
  }
  .detail-figure img {
    aspect-ratio: 16 / 10;
  }
}

/* ===== Tag Scroll ===== */
.tag-strip {
  background: var(--bg);
  padding: var(--space-section) 0 0;
}
.tag-scroll-wrap {
  position: relative;
}
.tag-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 16px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.tag-scroll::-webkit-scrollbar {
  display: none;
}
.tag-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: #fff;
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.25s ease;
  min-height: 44px;
}
.tag-item:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-tint);
}
.tag-item.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(180, 123, 76, 0.3);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-item.open {
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--primary);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: background 0.2s ease;
  min-height: 56px;
}
.faq-question:hover {
  background: var(--primary-tint-2);
}
.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  font-size: 16px;
  transition: transform 0.3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-answer-inner {
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  margin: 0 20px 0 20px;
  padding: 16px 0 20px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary-tint);
  padding: 64px 0;
}
.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 40px 40px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.cta-box h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.cta-box p {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 24px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  min-height: 48px;
  transition: all 0.25s ease;
  box-shadow: 0 3px 10px rgba(180, 123, 76, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(180, 123, 76, 0.35);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  font-size: 16px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary);
  cursor: pointer;
  min-height: 48px;
  transition: all 0.25s ease;
}
.btn-outline:hover {
  background: var(--primary-tint);
  color: var(--primary-dark);
  text-decoration: none;
  border-color: var(--primary-dark);
}
.contact-meta {
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
@media (max-width: 767px) {
  .cta-box {
    padding: 28px 20px;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary,
  .btn-outline {
    width: 100%;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 56px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(180, 123, 76, 0.3);
}
@media (max-width: 1023px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.footer-brand-sub {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
}
.footer-col li {
  margin-bottom: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s ease;
}
.footer-col a:hover {
  color: var(--primary-light);
  text-decoration: none;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
@media (max-width: 767px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== Focus accessibility ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.fade-in-up {
  animation: fadeInUp 0.6s ease both;
}
.fade-in-up.delay-1 {
  animation-delay: 0.1s;
}
.fade-in-up.delay-2 {
  animation-delay: 0.2s;
}