/* roulang page: index */
:root {
            --primary: #E85D3A;
            --primary-hover: #D14A28;
            --primary-active: #B83E20;
            --secondary: #152A39;
            --bg-warm: #FAF8F5;
            --bg-gray: #F0EDE8;
            --border-sand: #E2DDD6;
            --text-dark: #2A2A2E;
            --text-gray: #6B675F;
            --accent-gold: #C9A05A;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 4px rgba(21,42,57,0.06);
            --shadow-hover: 0 12px 30px rgba(21,42,57,0.10);
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-dark);
            background: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease;
        }

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

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

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin: 0 auto;
        }

        /* ---------- Buttons ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 32px;
            transition: all 0.25s ease;
            border: none;
            line-height: 1.4;
            cursor: pointer;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 93, 58, 0.28);
        }

        .btn-primary:active {
            background: var(--primary-active);
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-ghost {
            background: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            background: rgba(21, 42, 57, 0.06);
            color: var(--secondary);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }

        .btn-ghost:active {
            background: rgba(21, 42, 57, 0.10);
            transform: translateY(0);
        }

        .btn-full {
            width: 100%;
            height: 48px;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: transparent;
            z-index: 1000;
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(250, 248, 245, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom-color: var(--border-sand);
            box-shadow: 0 2px 12px rgba(21, 42, 57, 0.04);
        }

        .header-inner {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--secondary);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            gap: 3px;
            width: 24px;
            height: 24px;
            flex-shrink: 0;
        }

        .brand-icon i {
            display: block;
            width: 4px;
            border-radius: 2px;
            background: var(--primary);
        }

        .brand-icon i:nth-child(1) {
            height: 10px;
        }

        .brand-icon i:nth-child(2) {
            height: 20px;
            background: var(--secondary);
        }

        .brand-icon i:nth-child(3) {
            height: 14px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            margin: 0;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-dark);
            position: relative;
            padding: 8px 0;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.25s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--primary);
        }

        .nav-cta {
            padding: 8px 24px;
            border: 1px solid var(--secondary);
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--secondary);
            white-space: nowrap;
            transition: all 0.25s ease;
        }

        .nav-cta:hover {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 500;
            color: var(--secondary);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 6px;
        }

        .menu-toggle:hover {
            background: rgba(21, 42, 57, 0.06);
        }

        /* Mobile menu overlay */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-warm);
            z-index: 1200;
            padding: 32px 24px;
            display: flex;
            flex-direction: column;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
            visibility: hidden;
        }

        .mobile-menu.open {
            transform: translateX(0);
            visibility: visible;
        }

        .mobile-menu-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-close {
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-gray);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 6px;
        }

        .mobile-close:hover {
            background: rgba(21, 42, 57, 0.06);
            color: var(--primary);
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 48px;
        }

        .mobile-nav a {
            font-size: 26px;
            font-weight: 700;
            color: var(--secondary);
            padding: 14px 0;
            border-bottom: 1px solid var(--border-sand);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-nav a::after {
            content: '→';
            font-size: 20px;
            color: var(--text-gray);
            transition: transform 0.2s ease;
        }

        .mobile-nav a:hover {
            color: var(--primary);
        }

        .mobile-nav a:hover::after {
            transform: translateX(4px);
            color: var(--primary);
        }

        .mobile-nav a.active {
            color: var(--primary);
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            padding: 140px 0 88px;
            background-image: linear-gradient(90deg, rgba(250, 248, 245, 0.92) 35%, rgba(250, 248, 245, 0.45) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.05em;
            color: var(--primary);
            background: rgba(232, 93, 58, 0.08);
            border: 1px solid rgba(232, 93, 58, 0.2);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--secondary);
            letter-spacing: 0.01em;
            margin: 0 0 18px;
        }

        .hero-sub {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-gray);
            max-width: 540px;
            margin: 0 0 36px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Hero metrics */
        .hero-metrics {
            display: flex;
            flex-direction: column;
            background: rgba(255, 255, 255, 0.72);
            border: 1px solid var(--border-sand);
            border-radius: var(--radius-card);
            padding: 24px 32px;
            backdrop-filter: blur(6px);
        }

        .hero-metric {
            display: flex;
            align-items: baseline;
            gap: 16px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border-sand);
        }

        .hero-metric:last-child {
            border-bottom: none;
            padding-bottom: 8px;
        }

        .hero-metric:first-child {
            padding-top: 8px;
        }

        .hero-metric-value {
            font-size: 46px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--secondary);
            line-height: 1.1;
            min-width: 130px;
        }

        .hero-metric-value sup {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            top: -18px;
        }

        .hero-metric-label {
            font-size: 14px;
            color: var(--text-gray);
            line-height: 1.5;
        }

        /* ---------- Stats band ---------- */
        .stats-band {
            background: #fff;
            border-top: 1px solid var(--border-sand);
            border-bottom: 1px solid var(--border-sand);
            padding: 36px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }

        .stat-item {
            text-align: center;
            padding: 0 24px;
            border-left: 1px solid #E0DCD6;
            position: relative;
        }

        .stat-item:first-child {
            border-left: none;
        }

        .stat-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            margin-bottom: 10px;
        }

        .stat-num {
            display: block;
            font-size: 42px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--secondary);
            line-height: 1.2;
        }

        .stat-label {
            display: block;
            font-size: 13px;
            color: var(--text-gray);
            letter-spacing: 0.04em;
            margin-top: 6px;
        }

        /* ---------- Sections common ---------- */
        .section {
            padding: 88px 0;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin: 0 0 16px;
        }

        .section-head h2::after {
            content: '';
            display: block;
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            margin-top: 12px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-gray);
            margin: 0;
            max-width: 560px;
        }

        .section-head.with-link {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
        }

        .section-more {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease;
        }

        .section-more:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

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

        /* ---------- Services matrix ---------- */
        .services {
            padding: 88px 0;
        }

        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-sand);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--primary);
            transition: height 0.3s ease;
        }

        .service-card:hover {
            background: #FDFAF7;
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .service-card:hover::before {
            height: 100%;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(232, 93, 58, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--secondary);
            margin: 0 0 10px;
        }

        .service-card .service-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-gray);
            margin: 0 0 20px;
        }

        .service-points {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .service-points li {
            font-size: 14px;
            color: var(--text-dark);
            padding-left: 20px;
            position: relative;
        }

        .service-points li::before {
            content: '';
            position: absolute;
            left: 2px;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0.7;
        }

        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s ease;
        }

        .service-link:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

        /* Service showcase under grid */
        .service-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 28px;
        }

        .showcase-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 200px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease;
        }

        .showcase-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .showcase-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .showcase-card:hover img {
            transform: scale(1.04);
        }

        .showcase-caption {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 24px 20px 16px;
            background: linear-gradient(transparent, rgba(21, 42, 57, 0.85));
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        /* ---------- News / Timeline ---------- */
        .news-section {
            padding: 88px 0;
            background: var(--bg-gray);
        }

        .news-list {
            background: #fff;
            border: 1px solid var(--border-sand);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 28px;
            padding: 26px 32px;
            border-bottom: 1px solid var(--border-sand);
            transition: background 0.2s ease, padding-left 0.2s ease;
            position: relative;
        }

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

        .news-item:hover {
            background: #FBF7F3;
            padding-left: 36px;
        }

        .news-item:hover .news-arrow {
            transform: translateX(4px);
            color: var(--primary);
        }

        .news-date {
            min-width: 96px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-gold);
            letter-spacing: 0.04em;
            line-height: 1.5;
            border-right: 1px solid var(--border-sand);
            padding-right: 24px;
            text-align: center;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-cat {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-gray);
            background: var(--bg-gray);
            border-radius: var(--radius-pill);
            padding: 3px 14px;
            display: inline-block;
            margin-bottom: 6px;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-dark);
            margin: 0 0 6px;
            display: block;
        }

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

        .news-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-gray);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-arrow {
            font-size: 18px;
            color: var(--text-gray);
            transition: transform 0.2s ease, color 0.2s ease;
            width: 32px;
            text-align: right;
            flex-shrink: 0;
        }

        /* News empty */
        .news-empty {
            padding: 80px 32px;
            text-align: center;
            color: var(--text-gray);
        }

        .empty-icon {
            position: relative;
            display: inline-block;
            width: 56px;
            height: 56px;
            border: 1.5px solid var(--border-sand);
            border-radius: 50%;
            margin-bottom: 20px;
        }

        .empty-icon::before,
        .empty-icon::after {
            content: '';
            position: absolute;
            background: var(--border-sand);
        }

        .empty-icon::before {
            width: 20px;
            height: 1.5px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .empty-icon::after {
            width: 14px;
            height: 1.5px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, 8px);
        }

        .news-empty p {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            margin: 0 0 4px;
        }

        .news-empty span.news-empty-sub {
            font-size: 13px;
            color: var(--text-gray);
        }

        /* ---------- Comparison ---------- */
        .comparison {
            padding: 88px 0;
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 32px;
            align-items: center;
        }

        .compare-card {
            border-radius: var(--radius-card);
            padding: 32px;
            background: #fff;
            border: 1px solid var(--border-sand);
            box-shadow: var(--shadow-card);
        }

        .compare-card.old-way {
            background: var(--bg-gray);
            border-color: var(--border-sand);
        }

        .compare-card.new-way {
            border: 1.5px solid var(--primary);
            background: #fff;
        }

        .compare-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .old-way .compare-tag {
            background: #E4E0DA;
            color: var(--text-gray);
        }

        .new-way .compare-tag {
            background: rgba(232, 93, 58, 0.1);
            color: var(--primary);
        }

        .compare-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-card li {
            font-size: 14px;
            line-height: 1.65;
            padding-left: 28px;
            position: relative;
        }

        .compare-card li i {
            position: absolute;
            left: 0;
            top: 3px;
            font-size: 14px;
        }

        .old-way li {
            color: #8A857D;
        }

        .old-way li i {
            color: #B9B3AA;
        }

        .new-way li {
            color: var(--text-dark);
        }

        .new-way li i {
            color: var(--primary);
        }

        .compare-arrow {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 6px 16px rgba(21, 42, 57, 0.2);
        }

        .comparison-img-wrap {
            margin-top: 32px;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-card);
            height: 280px;
        }

        .comparison-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .comparison-img-wrap .img-caption {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 32px 24px 16px;
            background: linear-gradient(transparent, rgba(21, 42, 57, 0.75));
            color: #fff;
            font-size: 13px;
            letter-spacing: 0.03em;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            padding: 88px 0;
            background: var(--bg-gray);
        }

        .faq-container {
            max-width: 880px;
        }

        .accordion-item {
            background: #fff;
            border: 1px solid var(--border-sand);
            border-radius: 12px !important;
            overflow: hidden;
            margin-bottom: 14px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.2s ease;
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 20px 28px;
            background: #fff;
            box-shadow: none;
            position: relative;
            transition: color 0.2s ease, background 0.2s ease;
            border: none;
        }

        .accordion-button::after {
            background-image: none;
            content: '+';
            font-size: 22px;
            font-weight: 300;
            color: var(--text-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border: 1px solid var(--border-sand);
            border-radius: 50%;
            transition: all 0.25s ease;
            line-height: 1;
        }

        .accordion-button:not(.collapsed) {
            background: #FDF6F3;
            color: var(--primary);
            box-shadow: none;
            border-left: 3px solid var(--primary);
        }

        .accordion-button:not(.collapsed)::after {
            content: '−';
            color: var(--primary);
            border-color: var(--primary);
            transform: rotate(180deg);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.12);
        }

        .accordion-body {
            padding: 4px 28px 24px 28px;
            font-size: 14px;
            line-height: 1.8;
            color: #4A4742;
        }

        .faq-more {
            text-align: center;
            font-size: 14px;
            color: var(--text-gray);
            margin-top: 28px;
        }

        .faq-more a {
            color: var(--primary);
            font-weight: 500;
        }

        .faq-more a:hover {
            text-decoration: underline;
        }

        /* ---------- Contact / Form ---------- */
        .contact-section {
            position: relative;
            padding: 88px 0;
            background-image: linear-gradient(rgba(21, 42, 57, 0.88), rgba(21, 42, 57, 0.92)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .contact-info h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px;
        }

        .contact-info .contact-desc {
            color: rgba(255, 255, 255, 0.72);
            font-size: 15px;
            line-height: 1.8;
            margin: 0 0 32px;
        }

        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            color: rgba(255, 255, 255, 0.88);
            font-size: 14px;
        }

        .contact-list li i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .contact-img-wrap {
            width: 100%;
            height: 188px;
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        .contact-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .contact-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 40px 36px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
        }

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

        .form-field label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-gray);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .form-control,
        .form-select {
            border: 1px solid var(--border-sand);
            border-radius: var(--radius-input);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-dark);
            background: #fff;
            box-shadow: inset 0 1px 3px rgba(21, 42, 57, 0.04);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-control:focus,
        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.12);
            outline: none;
        }

        .form-control::placeholder {
            color: #B0AAA0;
        }

        .form-select {
            appearance: auto;
            -webkit-appearance: auto;
            cursor: pointer;
        }

        .form-tip {
            font-size: 13px;
            margin-top: 14px;
            text-align: center;
        }

        .form-tip.success {
            color: #2E8B57;
        }

        .form-tip.error {
            color: var(--primary);
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--secondary);
            padding: 72px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon i:nth-child(2) {
            background: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            margin: 0;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 18px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 5px 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin: 0 0 8px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.42);
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .menu-toggle {
                display: inline-flex;
                align-items: center;
                gap: 6px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-metrics {
                max-width: 100%;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px 16px;
            }

            .stat-item {
                border-left: none;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .service-showcase {
                grid-template-columns: 1fr;
            }

            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .compare-arrow {
                transform: rotate(90deg);
                margin: 0 auto;
            }

            .contact-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header,
            .header-inner {
                height: 60px;
            }

            .hero {
                padding: 110px 0 56px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-metric-value {
                font-size: 36px;
                min-width: 100px;
            }

            .hero-metric-value sup {
                font-size: 18px;
                top: -14px;
            }

            .section,
            .services,
            .news-section,
            .comparison,
            .faq-section,
            .contact-section {
                padding: 56px 0;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .news-item {
                gap: 16px;
                padding: 20px 16px;
            }

            .news-item:hover {
                padding-left: 20px;
            }

            .news-date {
                min-width: 70px;
                padding-right: 14px;
                font-size: 12px;
            }

            .news-cat {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                row-gap: 24px;
            }

            .stat-item {
                padding: 0 12px;
            }

            .stat-num {
                font-size: 32px;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .news-summary {
                display: none;
            }

            .news-item {
                align-items: flex-start;
            }

            .news-date {
                min-width: 76px;
                border-right: 1px solid var(--border-sand);
                padding-right: 12px;
                text-align: left;
            }

            .news-title {
                font-size: 15px;
            }

            .service-card {
                padding: 24px 20px;
            }

            .compare-card {
                padding: 24px 20px;
            }

            .contact-form-card {
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .accordion-button {
                font-size: 15px;
                padding: 16px 20px;
            }

            .accordion-body {
                padding: 4px 20px 20px;
            }

            .comparison-img-wrap {
                height: 200px;
            }
        }

        /* Focus visibility */
        a:focus,
        button:focus {
            outline: 2px solid rgba(232, 93, 58, 0.4);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
  --primary: #E85D3A;
  --primary-dark: #D14A28;
  --primary-active: #B83E20;
  --navy: #152A39;
  --navy-light: #1E3A4D;
  --warm-white: #FAF8F5;
  --warm-gray: #F0EDE8;
  --sand: #E2DDD6;
  --ink: #2A2A2E;
  --muted: #6B675F;
  --gold: #C9A05A;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 6px;
  --shadow-card: 0 1px 4px rgba(21,42,57,0.06);
  --shadow-hover: 0 12px 30px rgba(21,42,57,0.10);
  --trans: all 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--ink);
  background-color: var(--warm-white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: var(--trans); }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
@media (max-width: 576px) {
  .container { padding-left: 20px; padding-right: 20px; }
}

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 72px;
  z-index: 1000;
  display: flex;
  align-items: center;
  background: transparent;
  transition: var(--trans);
}
.site-header.scrolled {
  background: rgba(250,248,245,0.95);
  box-shadow: 0 1px 0 var(--sand);
  backdrop-filter: blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.01em;
}
.brand-icon {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 24px;
}
.brand-icon i {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--primary);
}
.brand-icon i:nth-child(1) { height: 10px; }
.brand-icon i:nth-child(2) { height: 20px; background: var(--navy); }
.brand-icon i:nth-child(3) { height: 14px; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-link {
  font-size: 15px;
  font-weight: 400;
  color: var(--navy);
  letter-spacing: 0.02em;
  padding: 8px 2px;
  position: relative;
  transition: var(--trans);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { transform: scaleX(1); }
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 22px;
  border: 1px solid var(--navy);
  border-radius: 999px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: var(--trans);
  white-space: nowrap;
}
.btn-header:hover {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.menu-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--navy);
  font-weight: 500;
}

/* Mobile overlay nav */
.mobile-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(250,248,245,0.98);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.mobile-overlay.open { opacity: 1; visibility: visible; }
.mobile-overlay .overlay-close {
  position: absolute;
  top: 24px; right: 24px;
  font-size: 24px;
  color: var(--navy);
}
.mobile-overlay .overlay-brand {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--navy);
}
.mobile-overlay .overlay-nav {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.mobile-overlay .overlay-nav a {
  font-size: 26px;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--sand);
  padding-bottom: 14px;
}
.mobile-overlay .overlay-nav a:hover { color: var(--primary); }
.mobile-overlay .overlay-nav a i { font-size: 18px; color: var(--sand); }
.mobile-overlay .overlay-cta {
  margin-top: 40px;
}

@media (max-width: 992px) {
  .main-nav, .btn-header { display: none; }
  .menu-toggle { display: inline-flex; }
  .site-header { height: 60px; }
}

/* Article Hero */
.article-hero {
  position: relative;
  padding: 140px 0 60px;
  background: linear-gradient(to right, rgba(250,248,245,0.94), rgba(250,248,245,0.68)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom: 1px solid var(--sand);
}
.article-hero .breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}
.article-hero .breadcrumb-nav a {
  color: var(--muted);
  transition: var(--trans);
}
.article-hero .breadcrumb-nav a:hover { color: var(--primary); }
.article-hero .breadcrumb-nav .sep { color: var(--sand); }
.article-hero .breadcrumb-nav .current { color: var(--ink); }
.article-hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy);
  max-width: 780px;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 13px;
  color: var(--muted);
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { color: var(--gold); font-size: 14px; }

@media (max-width: 768px) {
  .article-hero { padding: 110px 0 40px; }
  .article-hero h1 { font-size: 30px; }
  .article-meta { gap: 14px; }
}

/* Article Main */
.article-main {
  padding: 60px 0 30px;
  background: var(--warm-white);
}
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}
.article-body h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  margin: 56px 0 20px;
  line-height: 1.3;
}
.article-body h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--navy);
  margin: 36px 0 16px;
  line-height: 1.4;
}
.article-body p {
  margin-bottom: 24px;
  font-size: 16px;
  line-height: 1.85;
}
.article-body ul,
.article-body ol {
  margin: 0 0 24px 20px;
  padding-left: 8px;
}
.article-body ul li,
.article-body ol li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.7;
}
.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--warm-gray);
  padding: 20px 24px;
  margin: 32px 0;
  border-radius: 0 8px 8px 0;
  color: var(--muted);
  font-size: 15px;
}
.article-body img {
  border-radius: 8px;
  margin: 24px 0;
  width: 100%;
}
.article-body pre {
  background: var(--navy);
  color: #e8e8e8;
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-body code {
  background: var(--warm-gray);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.9em;
}
.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(232,93,58,0.3);
}
.article-body a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

/* Article Tags */
.article-tags {
  max-width: 760px;
  margin: 40px auto 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 28px;
  border-top: 1px solid var(--sand);
}
.article-tags .tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: var(--warm-gray);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  transition: var(--trans);
}
.article-tags .tag:hover {
  background: var(--primary);
  color: #fff;
}

/* Prev Next */
.article-prev-next {
  max-width: 760px;
  margin: 30px auto 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--sand);
}
.article-prev-next a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  transition: var(--trans);
  max-width: 48%;
}
.article-prev-next a:hover { color: var(--primary); }
.article-prev-next .next-link { justify-content: flex-end; margin-left: auto; text-align: right; }

@media (max-width: 576px) {
  .article-prev-next { flex-direction: column; }
  .article-prev-next a { max-width: 100%; }
  .article-prev-next .next-link { margin-left: 0; justify-content: flex-start; text-align: left; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 24px; }
  .article-body h3 { font-size: 20px; }
}

/* Related Section */
.related-section {
  padding: 70px 0 20px;
  background: var(--warm-white);
}
.related-section .section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
}
.related-section .section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--navy);
  position: relative;
  padding-bottom: 12px;
}
.related-section .section-head h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 28px; height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.related-section .section-head .more-link {
  font-size: 14px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--trans);
}
.related-section .section-head .more-link:hover {
  color: var(--primary);
}
.related-card {
  background: #fff;
  border: 1px solid var(--sand);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--trans);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--primary);
}
.related-card .card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}
.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-card .card-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.4;
}
.related-card .card-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}
.related-card .card-body .card-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-card .card-body .card-link i {
  transition: transform 0.25s;
}
.related-card .card-body .card-link:hover i { transform: translateX(4px); }

@media (max-width: 768px) {
  .related-section { padding: 50px 0 10px; }
  .related-section .section-head h2 { font-size: 24px; }
  .related-card .card-img { height: 170px; }
}

/* CTA Section */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(to right, rgba(21,42,57,0.92), rgba(21,42,57,0.80)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  margin-top: 60px;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-text h2 {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.cta-text p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--navy);
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--trans);
}
.btn-light:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.5);
  color: #fff;
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--trans);
}
.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}
@media (max-width: 768px) {
  .cta-section { padding: 56px 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-text h2 { font-size: 24px; }
}

/* Back to list */
.back-to-list {
  margin: 50px 0 0;
  text-align: center;
}
.back-to-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  transition: var(--trans);
  padding: 10px 24px;
  border: 1px solid var(--sand);
  border-radius: 999px;
}
.back-to-list a:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* Not Found */
.not-found {
  padding: 140px 0 80px;
  text-align: center;
  background: var(--warm-white);
  min-height: 60vh;
  display: flex;
  align-items: center;
}
.not-found .icon {
  font-size: 64px;
  color: var(--sand);
  margin-bottom: 24px;
}
.not-found h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.not-found p {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 32px;
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--trans);
}
.btn-back:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .brand .brand-icon i:nth-child(2) { background: #fff; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,0.55);
  margin-top: 16px;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
  transition: var(--trans);
}
.footer-col a:hover {
  color: var(--gold);
  padding-left: 4px;
}
.footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  line-height: 1.6;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* Utility */
.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--primary);
  transition: var(--trans);
  cursor: pointer;
}
.btn-main:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232,93,58,0.25);
}
.btn-outline-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--navy);
  color: var(--navy);
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--trans);
  cursor: pointer;
}
.btn-outline-main:hover {
  background: rgba(21,42,57,0.05);
  color: var(--primary);
  border-color: var(--primary);
}

/* focus states */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* roulang page: category1 */
:root {
            --primary: #E85D3A;
            --primary-dark: #D14A28;
            --primary-active: #B83E20;
            --deep-blue: #152A39;
            --deep-blue-light: #1E3A4C;
            --warm-white: #FAF8F5;
            --warm-gray: #F0EDE8;
            --sand-border: #E2DDD6;
            --text-dark: #2A2A2E;
            --text-muted: #6B675F;
            --gold: #C9A05A;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 1px 4px rgba(21, 42, 57, 0.06);
            --shadow-hover: 0 12px 30px rgba(21, 42, 57, 0.10);
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--warm-white);
            color: var(--text-dark);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

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

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

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(250, 248, 245, 0.88);
            border-bottom: 1px solid rgba(226, 221, 214, 0.6);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(250, 248, 245, 0.95);
            border-bottom-color: var(--sand-border);
            box-shadow: 0 1px 10px rgba(21, 42, 57, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            display: flex;
            align-items: flex-end;
            gap: 3px;
            height: 26px;
        }

        .brand-icon i {
            display: block;
            width: 5px;
            border-radius: 3px;
            background: var(--primary);
            transition: height 0.3s ease;
        }

        .brand-icon i:nth-child(1) {
            height: 12px;
        }

        .brand-icon i:nth-child(2) {
            height: 26px;
        }

        .brand-icon i:nth-child(3) {
            height: 18px;
        }

        .brand-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--deep-blue);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .main-nav {
            display: flex;
            gap: 34px;
            margin: 0 auto 0 48px;
        }

        .main-nav .nav-link {
            font-size: 15px;
            color: var(--text-dark);
            letter-spacing: 0.02em;
            padding: 10px 0;
            position: relative;
            font-weight: 400;
            transition: color 0.2s ease;
        }

        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
        }

        .main-nav .nav-link:hover::after,
        .main-nav .nav-link.active::after {
            width: 100%;
        }

        .main-nav .nav-link.active {
            color: var(--primary);
            font-weight: 500;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 22px;
            border: 1px solid var(--deep-blue);
            border-radius: 999px;
            color: var(--deep-blue);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--deep-blue);
            color: #fff;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            padding: 10px;
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .mobile-menu-toggle:hover {
            background: rgba(21, 42, 57, 0.05);
        }

        .mobile-menu-toggle span {
            display: block;
            height: 2px;
            background: var(--deep-blue);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        /* ========== Mobile Menu Overlay ========== */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 2000;
            background: var(--deep-blue);
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease, visibility 0.4s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            background: transparent;
        }

        .mobile-menu-close:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(90deg);
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            text-align: center;
        }

        .mobile-nav a {
            font-size: 26px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            padding: 14px 32px;
            letter-spacing: 0.04em;
            transition: color 0.3s ease, transform 0.3s ease;
            border-radius: 8px;
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            transform: translateX(4px);
        }

        /* ========== Hero ========== */
        .category-hero {
            padding: 160px 0 72px;
            background: linear-gradient(90deg, rgba(250, 248, 245, 0.95) 0%, rgba(250, 248, 245, 0.82) 45%, rgba(250, 248, 245, 0.45) 100%), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-bottom: 1px solid var(--sand-border);
            position: relative;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(232, 93, 58, 0.1);
            border: 1px solid rgba(232, 93, 58, 0.25);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: 0.06em;
            margin-bottom: 22px;
        }

        .category-hero .hero-tag i {
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: 46px;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 0;
        }

        /* ========== Section common ========== */
        .section-padding {
            padding: 88px 0;
        }

        .section-heading {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-heading .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-heading h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .section-heading h2::after {
            content: '';
            display: block;
            width: 32px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin: 18px auto 0;
        }

        .section-heading .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            margin-top: 14px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.75;
        }

        /* ========== Intro ========== */
        .category-intro {
            background: var(--warm-white);
            padding: 88px 0;
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.15fr;
            gap: 60px;
            align-items: center;
        }

        .intro-image {
            position: relative;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .intro-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(21, 42, 57, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .intro-image img {
            width: 100%;
            height: 460px;
            object-fit: cover;
            border-radius: 14px;
            transition: transform 0.6s ease;
        }

        .intro-image:hover img {
            transform: scale(1.02);
        }

        .intro-content .intro-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }

        .intro-content .intro-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .intro-content h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .intro-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .intro-content .intro-points {
            list-style: none;
            padding: 0;
            margin: 24px 0 0;
        }

        .intro-content .intro-points li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-dark);
            padding: 8px 0;
        }

        .intro-content .intro-points li i {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(232, 93, 58, 0.1);
            color: var(--primary);
            font-size: 11px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ========== Points ========== */
        .category-points {
            background: var(--warm-gray);
            padding: 88px 0;
        }

        .points-list {
            max-width: 920px;
            margin: 0 auto;
        }

        .point-item {
            display: flex;
            gap: 36px;
            padding: 44px 0;
            border-bottom: 1px solid var(--sand-border);
            position: relative;
            transition: transform 0.3s ease;
        }

        .point-item:first-child {
            padding-top: 12px;
        }

        .point-item:last-child {
            border-bottom: none;
            padding-bottom: 12px;
        }

        .point-item:hover .point-number {
            color: var(--primary);
        }

        .point-number {
            font-size: 42px;
            font-weight: 700;
            color: var(--gold);
            font-family: 'DIN', var(--font-sans);
            line-height: 1;
            min-width: 78px;
            letter-spacing: -0.02em;
            transition: color 0.3s ease;
        }

        .point-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .point-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
        }

        /* ========== Resources ========== */
        .category-resources {
            background: var(--warm-white);
            padding: 88px 0;
        }

        .resource-stack {
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .resource-card {
            display: grid;
            grid-template-columns: 280px 1fr;
            border: 1px solid var(--sand-border);
            border-radius: 14px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.35s ease, transform 0.35s ease, border-color 0.35s ease;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(232, 93, 58, 0.35);
        }

        .resource-card .resource-thumb {
            position: relative;
            overflow: hidden;
            min-height: 200px;
        }

        .resource-card .resource-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
            position: absolute;
            inset: 0;
        }

        .resource-card:hover .resource-thumb img {
            transform: scale(1.03);
        }

        .resource-body {
            padding: 30px 34px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .resource-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 4px 14px;
            background: rgba(201, 160, 90, 0.12);
            border: 1px solid rgba(201, 160, 90, 0.3);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            color: #A07F3B;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }

        .resource-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .resource-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .resource-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: gap 0.3s ease;
        }

        .resource-link:hover {
            gap: 14px;
        }

        /* ========== FAQ ========== */
        .category-faq {
            background: var(--warm-gray);
            padding: 88px 0;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--sand-border);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(232, 93, 58, 0.4);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            width: 100%;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--deep-blue);
            text-align: left;
            background: transparent;
            transition: color 0.3s ease;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--sand-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(232, 93, 58, 0.06);
        }

        .faq-answer {
            padding: 0 28px 22px;
            font-size: 14px;
            color: #4A4742;
            line-height: 1.8;
        }

        .faq-answer.collapse:not(.show) {
            display: none;
        }

        .faq-answer.collapse.show {
            display: block;
        }

        .faq-more {
            text-align: center;
            margin-top: 28px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .faq-more a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid rgba(232, 93, 58, 0.3);
            transition: border-color 0.2s ease;
        }

        .faq-more a:hover {
            border-color: var(--primary);
        }

        /* ========== CTA ========== */
        .category-cta {
            padding: 88px 0 64px;
            background: linear-gradient(120deg, var(--deep-blue) 0%, var(--deep-blue-light) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            background-blend-mode: overlay;
            color: #fff;
            position: relative;
        }

        .cta-inner {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .cta-content .cta-label {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.06em;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }

        .cta-content .cta-label::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 34px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: 8px;
            border: 1px solid var(--primary);
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
        }

        .btn-main:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(232, 93, 58, 0.3);
        }

        .btn-main:active {
            background: var(--primary-active);
            transform: translateY(0);
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 34px;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            transition: all 0.3s ease;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }

        .cta-info {
            padding: 36px 40px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 14px;
            backdrop-filter: blur(4px);
        }

        .cta-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 24px;
        }

        .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 0;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
        }

        .cta-contact-item i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(232, 93, 58, 0.15);
            border: 1px solid rgba(232, 93, 58, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .category-cross-links {
            margin-top: 64px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
        }

        .category-cross-links span {
            color: rgba(255, 255, 255, 0.5);
        }

        .category-cross-links a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all 0.3s ease;
        }

        .category-cross-links a:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(232, 93, 58, 0.08);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--deep-blue);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            margin-bottom: 20px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 22px;
        }

        .footer-brand .brand-icon i {
            background: var(--primary);
        }

        .footer-brand>p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-top: 16px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 10px;
            transition: color 0.2s ease;
            line-height: 1.6;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .header-inner {
                height: 64px;
            }

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .intro-image img {
                height: 340px;
            }

            .cta-inner {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .point-item {
                gap: 20px;
            }

            .point-number {
                font-size: 32px;
                min-width: 56px;
            }
        }

        @media (max-width: 768px) {
            .section-padding,
            .category-intro,
            .category-points,
            .category-resources,
            .category-faq,
            .category-cta {
                padding: 64px 0;
            }

            .category-hero {
                padding: 120px 0 48px;
            }

            .category-hero h1 {
                font-size: 32px;
            }

            .section-heading h2,
            .intro-content h2,
            .cta-content h2 {
                font-size: 24px;
            }

            .point-item {
                flex-direction: column;
                gap: 12px;
                padding: 32px 0;
            }

            .point-number {
                min-width: auto;
                font-size: 36px;
            }

            .resource-card {
                grid-template-columns: 1fr;
            }

            .resource-card .resource-thumb {
                min-height: 180px;
                position: relative;
                height: 180px;
            }

            .resource-card .resource-thumb img {
                position: absolute;
                height: 100%;
            }

            .resource-body {
                padding: 24px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 20px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .brand-text {
                font-size: 18px;
            }

            .brand-icon {
                height: 22px;
            }

            .category-hero {
                padding: 100px 0 40px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .category-hero .hero-desc {
                font-size: 14px;
            }

            .intro-content p {
                font-size: 14px;
            }

            .point-body p {
                font-size: 14px;
            }

            .resource-body h3 {
                font-size: 18px;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .btn-main,
            .btn-ghost-light {
                width: 100%;
            }

            .cta-info {
                padding: 24px;
            }

            .category-cross-links {
                flex-direction: column;
                gap: 12px;
            }

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

        /* ========== Bootstrap override ========== */
        .collapse:not(.show) {
            display: none;
        }

        .collapsing {
            height: 0;
            overflow: hidden;
            transition: height 0.35s ease;
        }

        .btn:focus,
        button:focus,
        a:focus {
            outline: 2px solid rgba(232, 93, 58, 0.4);
            outline-offset: 2px;
        }

        .btn:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

/* roulang page: category2 */
/* ============================================================
           设计变量
        ============================================================ */
        :root {
            --primary: #E85D3A;
            --primary-hover: #D14A28;
            --primary-active: #B83E20;
            --secondary: #152A39;
            --bg-main: #FAF8F5;
            --bg-sub: #F0EDE8;
            --border: #E2DDD6;
            --text: #2A2A2E;
            --text-muted: #6B675F;
            --accent: #C9A05A;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 4px rgba(21, 42, 57, 0.06);
            --shadow-hover: 0 12px 30px rgba(21, 42, 57, 0.10);
            --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --spacing-section: 88px;
            --spacing-mobile: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--primary);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        .text-muted {
            color: var(--text-muted) !important;
        }

        /* ============================================================
           导航 Header
        ============================================================ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            display: flex;
            align-items: center;
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
        }

        .site-header.scrolled {
            background: rgba(250, 248, 245, 0.95);
            border-bottom-color: var(--border);
            box-shadow: 0 1px 10px rgba(21, 42, 57, 0.05);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            display: flex;
            align-items: center;
            gap: 3px;
            height: 26px;
        }
        .brand-icon i {
            display: block;
            width: 4px;
            border-radius: 2px;
            background: var(--secondary);
        }
        .brand-icon i:nth-child(1) {
            height: 12px;
            background: var(--primary);
        }
        .brand-icon i:nth-child(2) {
            height: 24px;
            background: var(--secondary);
        }
        .brand-icon i:nth-child(3) {
            height: 17px;
            background: var(--primary);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--secondary);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: inline-block;
            padding: 6px 14px;
            font-size: 15px;
            font-weight: 400;
            letter-spacing: 0.02em;
            color: var(--text);
            border-radius: 4px;
            position: relative;
            transition: color .25s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 500;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 22px;
            border: 1px solid var(--secondary);
            border-radius: var(--radius-pill);
            color: var(--secondary);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: all .3s ease;
        }
        .nav-cta:hover {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            background: transparent;
            cursor: pointer;
            transition: border-color .25s ease;
        }
        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* 移动端全屏菜单 */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 998;
            background: rgba(250, 248, 245, 0.98);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity .35s ease, visibility .35s ease;
        }
        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .mobile-menu nav a {
            font-size: 26px;
            font-weight: 600;
            color: var(--secondary);
            padding: 10px 20px;
            position: relative;
            transition: color .25s ease;
        }
        .mobile-menu nav a:hover {
            color: var(--primary);
        }
        .mobile-menu nav a.active {
            color: var(--primary);
        }
        .mobile-menu nav a.active::after {
            content: '→';
            position: absolute;
            right: -28px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 20px;
        }
        .mobile-menu nav .mobile-cta {
            margin-top: 16px;
            font-size: 17px;
            font-weight: 500;
            border: 1px solid var(--secondary);
            border-radius: var(--radius-pill);
            padding: 12px 36px;
        }

        /* ============================================================
           Page Hero（分类页窄条 Banner）
        ============================================================ */
        .page-hero {
            position: relative;
            background: linear-gradient(90deg, rgba(250, 248, 245, 0.92) 0%, rgba(250, 248, 245, 0.72) 55%, rgba(250, 248, 245, 0.35) 100%);
            background-image: linear-gradient(90deg, rgba(250, 248, 245, 0.92), rgba(250, 248, 245, 0.72) 55%, rgba(250, 248, 245, 0.35)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            padding: 140px 0 72px;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 36px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color .2s ease;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav span {
            color: var(--border);
        }

        .page-hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--secondary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 6px;
        }

        .hero-divider {
            width: 42px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            margin-top: 20px;
        }

        /* ============================================================
           通用区块布局
        ============================================================ */
        .section {
            padding: 80px 0;
        }

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

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.05em;
            color: var(--primary);
            background: rgba(232, 93, 58, 0.08);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
        }

        .divider-bar {
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
            margin: 18px 0 28px;
        }

        /* ============================================================
           图文介绍区
        ============================================================ */
        .intro-section {
            padding: var(--spacing-section) 0;
        }

        .intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .intro-content h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--secondary);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .intro-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .intro-points {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
        .intro-points li {
            position: relative;
            padding-left: 26px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.65;
        }
        .intro-points li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }

        /* ============================================================
           核心服务流程（01/02/03 编号列表）
        ============================================================ */
        .process-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-sub);
        }

        .process-list {
            margin-top: 40px;
        }

        .process-item {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            padding: 36px 24px;
            border-bottom: 1px solid var(--border);
            transition: background .3s ease;
        }
        .process-item:first-child {
            border-top: 1px solid var(--border);
        }
        .process-item:hover {
            background: rgba(255, 255, 255, 0.6);
        }

        .process-num {
            font-size: 34px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
            min-width: 70px;
            letter-spacing: -0.02em;
            font-style: italic;
            position: relative;
        }
        .process-num::after {
            content: '';
            position: absolute;
            right: 0;
            top: 4px;
            width: 1px;
            height: 38px;
            background: var(--border);
        }

        .process-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .process-content p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 820px;
        }

        /* ============================================================
           相关资源推荐（2 张横向卡片）
        ============================================================ */
        .resources-section {
            padding: var(--spacing-section) 0;
        }

        .resource-card {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
            height: 100%;
            margin-bottom: 20px;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .resource-image {
            width: 220px;
            min-height: 160px;
            flex-shrink: 0;
            overflow: hidden;
        }
        .resource-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .resource-content {
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .resource-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.4;
            margin-bottom: 0;
        }

        .resource-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .resource-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            margin-top: 6px;
            transition: gap .25s ease;
        }
        .resource-link:hover {
            gap: 10px;
            color: var(--primary-hover);
        }

        /* ============================================================
           FAQ 手风琴
        ============================================================ */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-sub);
        }

        .faq-section .section-desc {
            margin-bottom: 32px;
        }

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

        .faq-wrap {
            margin-top: 36px;
        }
        .faq-wrap .faq-more {
            text-align: center;
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 20px;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: 14px !important;
            background: #fff;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .accordion-item.active-item,
        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left: 3px solid var(--primary) !important;
            box-shadow: var(--shadow-hover);
        }

        .accordion-header {
            margin: 0;
            font-size: 0;
        }

        .accordion-button {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            line-height: 1.5;
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            text-align: left;
            border: none;
            cursor: pointer;
            transition: color .25s ease;
            position: relative;
        }
        .accordion-button::after {
            content: '';
            flex-shrink: 0;
            width: 14px;
            height: 14px;
            background-image: none !important;
            border-right: 2px solid var(--text-muted);
            border-bottom: 2px solid var(--text-muted);
            transform: translateY(-3px) rotate(45deg);
            transition: transform .3s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: translateY(1px) rotate(225deg);
            border-color: var(--primary);
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(232, 93, 58, 0.03);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: 0;
        }

        .accordion-collapse {
            border-top: 1px solid rgba(226, 221, 214, 0.5);
        }

        .accordion-body {
            padding: 20px 24px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            background: #fff;
        }
        .accordion-body p {
            margin-bottom: 8px;
        }
        .accordion-body p:last-child {
            margin-bottom: 0;
        }

        /* ============================================================
           CTA 转化区（深色背景 + 表单卡片）
        ============================================================ */
        .contact-section {
            position: relative;
            background: var(--secondary);
            background-image: linear-gradient(rgba(21, 42, 57, 0.88), rgba(21, 42, 57, 0.88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-section) 0;
        }

        .contact-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .contact-info h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 18px;
        }

        .contact-info p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.8;
            margin-bottom: 26px;
        }

        .contact-lines {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .contact-lines li {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.88);
            padding: 8px 0;
        }
        .contact-lines li i {
            width: 22px;
            color: var(--primary);
            text-align: center;
            font-size: 16px;
        }

        .contact-form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.14);
        }

        .contact-form-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .form-control-custom {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-input);
            background: var(--bg-main);
            font-size: 14px;
            color: var(--text);
            transition: border-color .25s ease, box-shadow .25s ease;
        }
        .form-control-custom:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.12);
            background: #fff;
        }
        .form-control-custom::placeholder {
            color: #aaa79f;
        }

        select.form-control-custom {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236B675F' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 38px;
            cursor: pointer;
        }

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

        .btn-submit {
            width: 100%;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.03em;
            cursor: pointer;
            border: none;
            transition: background .3s ease, transform .2s ease;
        }
        .btn-submit:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }
        .btn-submit:active {
            background: var(--primary-active);
            transform: translateY(0);
        }
        .btn-submit:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .form-message {
            margin-top: 12px;
            font-size: 14px;
            line-height: 1.5;
            text-align: center;
            min-height: 22px;
            display: none;
        }
        .form-message.success {
            color: #2e7d32;
            display: block;
        }
        .form-message.error {
            color: #d32f2f;
            display: block;
        }

        /* ============================================================
           站内互链区
        ============================================================ */
        .interlink-section {
            padding: var(--spacing-section) 0;
        }

        .interlink-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 36px;
        }

        .interlink-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 28px 30px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
        }
        .interlink-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .interlink-info h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 4px;
        }
        .interlink-info p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .interlink-arrow {
            font-size: 20px;
            color: var(--primary);
            transition: transform .25s ease;
        }
        .interlink-card:hover .interlink-arrow {
            transform: translateX(6px);
        }

        /* ============================================================
           页脚 Footer
        ============================================================ */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr 0.8fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.62);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            padding: 5px 0;
            transition: color .25s ease, padding-left .25s ease;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
        }
        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ============================================================
           响应式断点
        ============================================================ */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .contact-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .interlink-grid {
                grid-template-columns: 1fr;
            }

            .resource-card {
                flex-direction: column;
                align-items: stretch;
            }
            .resource-image {
                width: 100%;
                min-height: 180px;
            }
        }

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

            .site-header {
                height: 60px;
            }

            .page-hero {
                padding-top: 100px;
                padding-bottom: 48px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }

            .section-title {
                font-size: 24px;
            }

            .intro-section {
                padding: var(--spacing-mobile) 0;
            }
            .intro-content h2 {
                font-size: 24px;
            }
            .intro-image {
                margin-bottom: 24px;
            }

            .process-item {
                flex-direction: column;
                gap: 14px;
                padding: 28px 16px;
            }
            .process-num {
                min-width: auto;
            }
            .process-num::after {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .contact-form-card {
                padding: 24px 20px;
            }

            .interlink-card {
                padding: 20px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .resource-image {
                min-height: 160px;
            }

            .brand-text {
                font-size: 18px;
            }

            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }

        /* ============================================================
           可访问性焦点样式
        ============================================================ */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 平滑过渡 */
        .section,
        .page-hero,
        .contact-section {
            overflow: hidden;
        }

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root {
  --primary: #E85D3A;
  --primary-hover: #D14A28;
  --primary-active: #B83E20;
  --night: #152A39;
  --bg-main: #FAF8F5;
  --bg-soft: #F0EDE8;
  --border-soft: #E2DDD6;
  --text-main: #2A2A2E;
  --text-weak: #6B675F;
  --accent-gold: #C9A05A;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-input: 6px;
  --shadow-card: 0 1px 4px rgba(21,42,57,0.06);
  --shadow-hover: 0 12px 30px rgba(21,42,57,0.10);
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --transition: all .25s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-main);
  background-color: var(--bg-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

button {
  font-family: var(--font-sans);
  cursor: pointer;
  background: none;
  border: none;
}

input, textarea, select {
  font-family: var(--font-sans);
  font-size: 15px;
}

.btn {
  border-radius: var(--radius-btn);
  font-weight: 600;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232,93,58,0.12);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ============ 容器 ============ */
.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* ============ 按钮 ============ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  padding: 0 36px;
  background-color: var(--primary);
  color: #fff;
  border: 1px solid transparent;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  text-decoration: none;
  transition: background-color .2s, transform .2s, box-shadow .2s, color .2s;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232,93,58,0.25);
  color: #fff;
}

.btn-primary:active {
  background-color: var(--primary-active);
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  padding: 0 36px;
  background-color: transparent;
  color: var(--night);
  border: 1px solid var(--night);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  text-decoration: none;
  transition: all .2s;
}

.btn-secondary:hover {
  background-color: rgba(21,42,57,0.05);
  border-color: var(--primary);
  color: var(--primary);
}

/* ============ 导航 Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: transparent;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: background-color .3s, box-shadow .3s, border-color .3s;
}

.site-header.scrolled {
  background: rgba(250,248,245,0.95);
  border-bottom-color: var(--border-soft);
  box-shadow: 0 4px 18px rgba(21,42,57,0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand:hover {
  color: var(--night);
}

.brand-icon {
  display: inline-flex;
  align-items: flex-end;
  width: 24px;
  height: 24px;
  gap: 3px;
}

.brand-icon i {
  display: block;
  width: 5px;
  background: var(--primary);
  border-radius: 3px;
  height: 60%;
}

.brand-icon i:nth-child(1) { height: 55%; }
.brand-icon i:nth-child(2) { height: 100%; background: var(--night); }
.brand-icon i:nth-child(3) { height: 78%; }

.brand-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--night);
  white-space: nowrap;
}

/* 导航菜单 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 0.02em;
  padding: 8px 2px;
  position: relative;
  white-space: nowrap;
  transition: color .2s;
}

.main-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width .25s ease;
}

.main-nav .nav-link:hover {
  color: var(--primary);
}

.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after {
  width: 100%;
}

.main-nav .nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

/* 导航 CTA */
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 24px;
  border: 1px solid rgba(21,42,57,0.5);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--night);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: all .2s;
}

.header-cta:hover {
  background: var(--night);
  border-color: var(--night);
  color: #fff;
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  background: transparent;
  border: 1px solid var(--night);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--night);
  line-height: 1;
  transition: all .2s;
}

.nav-toggle:hover {
  background: rgba(21,42,57,0.06);
}

/* 移动端全屏菜单 */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-main);
  z-index: 999;
  padding: 96px 32px 40px;
  display: none;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-menu.show {
  display: flex;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
}

.mobile-menu nav a {
  font-size: 24px;
  font-weight: 600;
  color: var(--night);
  text-decoration: none;
  padding: 18px 4px;
  border-bottom: 1px solid var(--border-soft);
  transition: color .2s, padding-left .2s;
}

.mobile-menu nav a:hover,
.mobile-menu nav a.active {
  color: var(--primary);
  padding-left: 12px;
  border-bottom-color: rgba(232,93,58,0.3);
}

.mobile-menu-cta {
  margin-top: 32px;
}

.mobile-menu-cta .btn-primary {
  width: 100%;
}

/* ============ 页面 Hero ============ */
.page-hero {
  position: relative;
  padding: 148px 0 72px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(250,248,245,0.94) 20%, rgba(250,248,245,0.72) 55%, rgba(250,248,245,0.35) 100%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-weak);
  margin-bottom: 18px;
}

.page-hero .breadcrumb a {
  color: var(--text-weak);
  text-decoration: none;
  transition: color .2s;
}

.page-hero .breadcrumb a:hover {
  color: var(--primary);
}

.page-hero .breadcrumb .divider {
  opacity: 0.5;
}

.page-hero h1 {
  font-size: 46px;
  font-weight: 700;
  color: var(--night);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

.page-hero .hero-desc {
  font-size: 17px;
  color: var(--text-weak);
  line-height: 1.85;
  max-width: 580px;
  margin: 0;
}

/* ============ 通用 Section ============ */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.06em;
}

.section-tag::before {
  content: '';
  width: 26px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  display: inline-block;
}

.section-head {
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--night);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
}

.section-head.centered {
  text-align: center;
}

.section-head.centered .section-tag {
  justify-content: center;
}

/* ============ 图文介绍区 ============ */
.intro-section {
  padding: 88px 0;
  background: var(--bg-main);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.intro-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.intro-content h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--night);
  line-height: 1.3;
  margin: 14px 0 20px;
}

.intro-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-weak);
  margin-bottom: 18px;
}

/* ============ 细分点列表 ============ */
.points-section {
  padding: 88px 0;
  background: var(--bg-soft);
}

.points-list {
  display: flex;
  flex-direction: column;
}

.point-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border-soft);
  align-items: start;
}

.point-item:first-child {
  padding-top: 8px;
}

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

.point-num {
  font-size: 46px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -0.02em;
}

.point-content h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--night);
  margin-bottom: 12px;
}

.point-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-weak);
  max-width: 680px;
  margin-bottom: 0;
}

/* ============ 资源推荐 ============ */
.resource-section {
  padding: 88px 0;
  background: var(--bg-main);
}

.resource-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.resource-card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-card);
  padding: 20px;
  text-decoration: none;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
  color: inherit;
}

.resource-card img {
  width: 180px;
  height: 124px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.resource-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--night);
  margin-bottom: 8px;
  transition: color .2s;
}

.resource-card:hover .resource-info h3 {
  color: var(--primary);
}

.resource-info p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.65;
  margin: 0;
}

/* ============ 互链区 ============ */
.cross-links {
  padding: 28px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-soft);
}

.cross-links .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cross-links span {
  font-size: 14px;
  color: var(--text-weak);
}

.cross-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--night);
  text-decoration: none;
  padding: 6px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: #fff;
  transition: all .2s;
}

.cross-links a:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: rgba(232,93,58,0.04);
}

/* ============ FAQ ============ */
.faq-section {
  padding: 88px 0;
  background: var(--bg-main);
}

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

.faq-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow .25s, border-color .25s;
}

.faq-item::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 3px 0 0 3px;
  opacity: 0;
  transition: opacity .2s;
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow-card);
}

.faq-item.open::before {
  opacity: 1;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--night);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: color .2s;
}

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

.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  display: block;
  background: var(--primary);
  border-radius: 2px;
  transition: transform .25s ease;
}

.faq-icon::before {
  width: 14px;
  height: 2px;
  top: 9px;
  left: 3px;
}

.faq-icon::after {
  height: 14px;
  width: 2px;
  top: 3px;
  left: 9px;
}

.faq-item.open .faq-icon::after {
  transform: scaleY(0);
}

.faq-answer {
  display: none;
  padding: 0 28px 24px;
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.8;
  color: #4A4742;
  margin: 0;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-more {
  text-align: center;
  font-size: 14px;
  color: var(--text-weak);
  margin-top: 28px;
}

.faq-more a {
  color: var(--primary);
  font-weight: 600;
}

/* ============ CTA ============ */
.cta-section {
  position: relative;
  padding: 88px 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(21,42,57,0.88) 30%, rgba(21,42,57,0.78) 100%);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-card {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.cta-card h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-card p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255,255,255,0.82);
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-section .btn-secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

.cta-section .btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--night);
  color: rgba(255,255,255,0.82);
  padding: 64px 0 0;
  font-size: 14px;
}

.site-footer .brand-text {
  color: #fff;
}

.site-footer .brand-icon i:nth-child(2) {
  background: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
  margin: 18px 0 0;
  font-size: 14px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  padding: 5px 0;
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}

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

.footer-col p {
  color: rgba(255,255,255,0.6);
  margin: 5px 0;
  font-size: 14px;
  line-height: 1.6;
}

.footer-bottom {
  padding: 24px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .main-nav {
    gap: 22px;
  }

  .brand-text {
    font-size: 18px;
  }

  .page-hero h1 {
    font-size: 38px;
  }

  .intro-grid {
    gap: 40px;
  }

  .intro-media img {
    height: 360px;
  }
}

@media (max-width: 992px) {
  .main-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .site-header,
  .header-inner {
    height: 60px;
  }

  .site-header {
    background: rgba(250,248,245,0.95);
    border-bottom: 1px solid var(--border-soft);
  }

  .page-hero {
    padding: 104px 0 52px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero .hero-desc {
    font-size: 15px;
  }

  .intro-section,
  .points-section,
  .resource-section,
  .faq-section,
  .cta-section {
    padding: 56px 0;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .intro-media img {
    height: 260px;
  }

  .resource-grid {
    grid-template-columns: 1fr;
  }

  .point-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 28px 0;
  }

  .point-num {
    font-size: 34px;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 20px 20px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn-primary,
  .cta-actions .btn-secondary {
    width: 100%;
    max-width: 320px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 576px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .brand-text {
    font-size: 17px;
  }

  .resource-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .resource-card img {
    width: 100%;
    height: 180px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .cross-links .container {
    gap: 12px;
  }
}