/* roulang page: index */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

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

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: rgba(184, 114, 45, 0.08);
        }

        .nav-hamburger span {
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg);
            z-index: 99;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            border-top: 1px solid var(--border);
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav .nav-link {
            padding: 14px 16px;
            font-size: 16px;
            border-radius: 8px;
            border-bottom: 1px solid var(--border);
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #FFFFFF;
            color: var(--secondary);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--border);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(184, 114, 45, 0.06);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #FAFAF7;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(250, 250, 247, 0.5);
            transition: all var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(250, 250, 247, 0.1);
            border-color: #FAFAF7;
        }

        /* Tags and badges */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(184, 114, 45, 0.08);
            color: var(--primary);
            border: 1px solid rgba(184, 114, 45, 0.25);
            white-space: nowrap;
        }

        .tag-dark {
            background: rgba(31, 58, 54, 0.1);
            color: var(--secondary);
            border-color: rgba(31, 58, 54, 0.2);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(212, 155, 74, 0.15);
            color: #A06B2A;
            border: 1px solid rgba(212, 155, 74, 0.4);
        }

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

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

        .section-dark {
            background: var(--secondary);
            color: #FAFAF7;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 40px;
            max-width: 680px;
            line-height: 1.8;
        }

        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        /* Card base */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(184, 114, 45, 0.3);
        }

        .card-warm {
            background: var(--card-bg-warm);
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg);
            padding: 80px 0 60px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.92;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 58, 54, 0.88) 0%, rgba(31, 58, 54, 0.55) 45%, rgba(184, 114, 45, 0.35) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            color: #FAFAF7;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(250, 250, 247, 0.12);
            border: 1px solid rgba(250, 250, 247, 0.3);
            border-radius: 24px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge svg {
            width: 14px;
            height: 14px;
            color: var(--accent);
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-title .highlight {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(250, 250, 247, 0.88);
            margin-bottom: 32px;
            max-width: 560px;
        }

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

        .hero-play-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(250, 250, 247, 0.18);
            border: 2px solid rgba(250, 250, 247, 0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .hero-play-btn:hover {
            background: rgba(250, 250, 247, 0.3);
            transform: scale(1.05);
            border-color: #FAFAF7;
        }

        .hero-play-btn svg {
            width: 22px;
            height: 22px;
            color: #FAFAF7;
        }

        .hero-play-label {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.85);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 28px;
            font-weight: 700;
            color: #FAFAF7;
            letter-spacing: 0.5px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(250, 250, 247, 0.7);
            margin-top: 2px;
        }

        /* Brand intro */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
        }

        .brand-intro-text p {
            margin-bottom: 16px;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            border: 1px solid var(--border);
        }

        .brand-intro-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        /* Service cards */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .service-card {
            padding: 28px 22px;
            text-align: left;
        }

        .service-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(184, 114, 45, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .service-card-icon svg {
            width: 22px;
            height: 22px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* Topics / tags cloud */
        .topics-container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 24px;
            background: #FFFFFF;
            border: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-sub);
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .topic-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(184, 114, 45, 0.04);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
        }

        /* Data stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: rgba(250, 250, 247, 0.05);
            border: 1px solid rgba(250, 250, 247, 0.15);
            border-radius: var(--radius-card);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(250, 250, 247, 0.1);
            border-color: rgba(212, 155, 74, 0.5);
        }

        .stat-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.75);
        }

        /* Case cards */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .case-card {
            overflow: hidden;
        }

        .case-card-image {
            height: 200px;
            overflow: hidden;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .case-card-body {
            padding: 20px 24px 24px;
        }

        .case-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .case-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* Deep content */
        .deep-content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-content-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
        }

        .deep-content-text p {
            margin-bottom: 16px;
        }

        .deep-content-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .deep-content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .deep-content-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        /* Solutions */
        .solution-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .solution-item {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .solution-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 114, 45, 0.3);
            transform: translateY(-1px);
        }

        .solution-item-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .solution-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .solution-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* News */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 114, 45, 0.3);
            transform: translateY(-2px);
        }

        .news-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 8px;
        }

        .news-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .news-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 12px;
        }

        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

        .news-link:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        /* Guest highlights */
        .guest-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .guest-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .guest-scroll::-webkit-scrollbar-track {
            background: var(--bg-alt);
            border-radius: 3px;
        }

        .guest-scroll::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .guest-card {
            min-width: 260px;
            max-width: 260px;
            scroll-snap-align: start;
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            transition: all var(--transition);
        }

        .guest-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 114, 45, 0.3);
            transform: translateY(-2px);
        }

        .guest-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: #FAFAF7;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .guest-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .guest-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* Focus themes */
        .theme-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .theme-card {
            padding: 28px 24px;
        }

        .theme-card .tag {
            margin-bottom: 16px;
        }

        .theme-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .theme-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item.active {
            border-color: rgba(184, 114, 45, 0.4);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
            min-height: 56px;
        }

        .faq-question:hover {
            background: rgba(184, 114, 45, 0.04);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 500;
            color: var(--primary);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-sub);
            background: #F7F3ED;
            border-top: 1px solid var(--border);
        }

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

        /* Contact CTA */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .contact-info {
            font-size: 15px;
            line-height: 1.85;
            color: rgba(250, 250, 247, 0.85);
        }

        .contact-info h3 {
            font-size: 22px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 16px;
        }

        .contact-form {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--text-main);
            background: #FDFBF7;
            transition: all var(--transition);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
            outline: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #A99F93;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(250, 250, 247, 0.75);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 12px;
            letter-spacing: 0.8px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(250, 250, 247, 0.65);
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FAFAF7;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(250, 250, 247, 0.65);
            margin-bottom: 8px;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(250, 250, 247, 0.12);
            font-size: 13px;
            color: rgba(250, 250, 247, 0.5);
        }

        .footer-bottom a {
            color: rgba(250, 250, 247, 0.65);
            transition: color var(--transition);
        }

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

        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-grid,
            .deep-content-block,
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .brand-intro-image img,
            .deep-content-image img {
                height: 240px;
            }
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .hero {
                min-height: 520px;
                padding: 60px 0 40px;
            }
            .hero-title {
                font-size: 24px;
                line-height: 1.35;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stats {
                gap: 20px;
                margin-top: 24px;
            }
            .hero-stat-value {
                font-size: 22px;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .case-grid,
            .news-grid,
            .theme-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 28px;
            }
            .contact-form {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links {
                justify-content: center;
            }
            .nav-container {
                gap: 12px;
            }
            .nav-logo-text {
                font-size: 16px;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-narrow {
                padding: 0 16px;
            }
            .hero-play-btn {
                width: 44px;
                height: 44px;
            }
            .hero-play-btn svg {
                width: 18px;
                height: 18px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-value {
                font-size: 28px;
            }
            .guest-card {
                min-width: 220px;
                max-width: 220px;
            }
            .solution-item {
                flex-direction: column;
                gap: 12px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

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

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            border-radius: 4px;
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: rgba(184, 114, 45, 0.08);
        }

        .nav-hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Buttons */
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.22);
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.30);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--secondary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--secondary);
            transition: all var(--transition);
            text-align: center;
        }

        .btn-secondary:hover {
            background: rgba(184, 114, 45, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Page Banner */
        .page-banner {
            background: var(--secondary);
            color: #FAFAF7;
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.15);
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -5%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.10);
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.7);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(250, 250, 247, 0.7);
            transition: color var(--transition);
        }

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

        .breadcrumb .separator {
            color: rgba(250, 250, 247, 0.4);
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .page-banner .banner-desc {
            font-size: 16px;
            color: rgba(250, 250, 247, 0.82);
            max-width: 760px;
            line-height: 1.85;
        }

        .banner-accent {
            display: inline-block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin-bottom: 18px;
        }

        /* Card Grid Section */
        .card-grid-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.85;
        }

        .member-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .member-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .member-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(184, 114, 45, 0.3);
        }

        .member-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-alt);
        }

        .member-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

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

        .member-card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .member-card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(184, 114, 45, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .member-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .member-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.85;
            flex: 1;
        }

        .member-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            margin-top: 16px;
            transition: gap var(--transition);
        }

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

        /* Deep Content Section */
        .deep-content-section {
            padding: 72px 0;
            background: var(--bg-alt);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 20px;
            line-height: 1.45;
        }

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

        .deep-content-text p:last-child {
            margin-bottom: 0;
        }

        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16/10;
        }

        .deep-content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Data Section */
        .data-section {
            padding: 64px 0;
            background: var(--secondary);
            color: #FAFAF7;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .data-item {
            padding: 20px;
        }

        .data-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .data-label {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.75);
            margin-top: 8px;
        }

        /* CTA Section */
        .cta-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .cta-panel {
            background: var(--card-bg-warm);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-panel h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .cta-panel p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 560px;
        }

        .cta-panel .btn-group {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #FAFAF7;
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            color: #FAFAF7;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.65);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FAFAF7;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(250, 250, 247, 0.65);
            padding: 6px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(250, 250, 247, 0.55);
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.55);
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.65);
            transition: color var(--transition);
        }

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

        .footer-links span {
            color: rgba(250, 250, 247, 0.3);
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            z-index: 99;
            box-shadow: 0 8px 24px rgba(43, 38, 34, 0.10);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 1px solid var(--border);
            transition: color var(--transition);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

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

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .member-card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

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

            .nav-links {
                display: none;
            }

            .nav-search {
                width: 150px;
            }

            .nav-quick-link {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .mobile-menu {
                top: 60px;
            }

            .page-banner {
                padding: 44px 0 40px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

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

            .card-grid-section {
                padding: 48px 0;
            }

            .deep-content-section {
                padding: 48px 0;
            }

            .data-section {
                padding: 44px 0;
            }

            .data-number {
                font-size: 28px;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-panel {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }

            .cta-panel .btn-group {
                width: 100%;
                justify-content: center;
            }

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

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

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .nav-search {
                width: 120px;
                padding: 5px 10px;
            }

            .page-banner h1 {
                font-size: 22px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ::selection {
            background: rgba(184, 114, 45, 0.18);
            color: var(--text-main);
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            min-height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            flex-wrap: nowrap;
        }

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            padding: 8px 13px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 13px;
            right: 13px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 190px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
            min-width: 0;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible,
        .read-more:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            flex-shrink: 0;
            border-radius: 6px;
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: rgba(184, 114, 45, 0.08);
        }

        .nav-hamburger span {
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        .mobile-menu {
            display: none;
            background: rgba(250, 246, 240, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 8px;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 8px 24px rgba(43, 38, 34, 0.08);
        }

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

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
        }

        .mobile-menu .nav-link.active {
            background: rgba(184, 114, 45, 0.08);
        }

        .mobile-menu .nav-link.active::after {
            display: none;
        }

        .mobile-menu .nav-search {
            width: 100%;
            border-radius: 8px;
        }

        /* Buttons */
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 4px rgba(184, 114, 45, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: var(--secondary);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(31, 58, 54, 0.06);
            border-color: var(--secondary);
            transform: translateY(-1px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        /* Page Banner */
        .page-banner {
            background: var(--secondary);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.15);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.08);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(250, 250, 247, 0.6);
            transition: color var(--transition);
        }

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

        .breadcrumb .separator {
            color: rgba(250, 250, 247, 0.3);
        }

        .breadcrumb .current {
            color: var(--accent);
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 700;
            color: #FAFAF7;
            letter-spacing: 0.5px;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .page-banner .banner-summary {
            font-size: 16px;
            color: rgba(250, 250, 247, 0.75);
            max-width: 720px;
            line-height: 1.8;
        }

        /* Service List Section */
        .service-list-section {
            padding: 64px 0 80px;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 114, 45, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 0.3px;
            line-height: 1.35;
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 760px;
            line-height: 1.8;
        }

        /* Service list items */
        .service-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .service-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .service-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(184, 114, 45, 0.25);
        }

        .service-item-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .service-item-title-area {
            flex: 1;
            min-width: 0;
        }

        .service-item-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .service-item-title a {
            transition: color var(--transition);
        }

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

        .service-item-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        .service-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(31, 58, 54, 0.06);
            color: var(--secondary);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .service-tag.highlight {
            background: rgba(184, 114, 45, 0.1);
            color: var(--primary);
        }

        .service-item-summary {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 860px;
        }

        .service-item-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 8px;
            border-top: 1px solid rgba(229, 221, 210, 0.5);
        }

        .service-item-date {
            font-size: 13px;
            color: #A99F93;
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            border-radius: 4px;
            padding: 2px 4px;
        }

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

        .read-more svg {
            width: 16px;
            height: 16px;
            transition: transform var(--transition);
        }

        .read-more:hover svg {
            transform: translateX(3px);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .page-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            background: var(--card-bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(184, 114, 45, 0.04);
        }

        .page-btn.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            font-weight: 600;
        }

        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Info strip / CTA */
        .info-strip {
            background: var(--bg-alt);
            padding: 56px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .info-strip-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .info-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 24px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .info-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .info-card-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(184, 114, 45, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            flex-shrink: 0;
        }

        .info-card-icon svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
        }

        .info-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .info-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

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

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.12);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            right: -60px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.06);
        }

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

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FAFAF7;
            letter-spacing: 0.3px;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(250, 250, 247, 0.7);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

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

        .btn-light {
            background: #FAFAF7;
            color: var(--secondary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-light:hover {
            background: var(--accent);
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: #FAFAF7;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid rgba(250, 250, 247, 0.4);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(212, 155, 74, 0.08);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #FAFAF7;
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.6);
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            color: #FAFAF7;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(250, 250, 247, 0.6);
            padding: 4px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(250, 250, 247, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(250, 250, 247, 0.5);
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.5);
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.5);
            transition: color var(--transition);
            font-size: 13px;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-search {
                width: 150px;
            }

            .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }

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

            .page-banner h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-search {
                display: none;
            }

            .nav-quick-link {
                display: none;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-banner {
                padding: 40px 0 36px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner .banner-summary {
                font-size: 15px;
            }

            .service-list-section {
                padding: 48px 0 56px;
            }

            .service-item {
                padding: 22px 20px;
            }

            .service-item-title {
                font-size: 18px;
            }

            .service-item-top {
                flex-direction: column;
                gap: 10px;
            }

            .service-item-tags {
                flex-shrink: 1;
            }

            .service-item-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

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

            .cta-section {
                padding: 56px 0;
            }

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

            .cta-actions {
                flex-direction: column;
                width: 100%;
                max-width: 320px;
                margin: 0 auto;
            }

            .btn-primary,
            .btn-secondary,
            .btn-light,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .info-strip-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .pagination {
                gap: 6px;
            }

            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .page-banner h1 {
                font-size: 22px;
            }

            .page-banner .banner-summary {
                font-size: 14px;
            }

            .service-item {
                padding: 18px 16px;
                border-radius: 10px;
            }

            .service-item-title {
                font-size: 17px;
            }

            .service-item-summary {
                font-size: 14px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .cta-section p {
                font-size: 14px;
            }

            .nav-logo-text {
                font-size: 16px;
            }

            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }

            .nav-cta {
                padding: 7px 14px;
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

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

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: rgba(184, 114, 45, 0.06);
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(250, 246, 240, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 99;
            box-shadow: 0 8px 24px rgba(43, 38, 34, 0.10);
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: 8px;
            display: block;
            width: 100%;
            text-align: left;
        }

        .mobile-nav .nav-search {
            width: 100%;
            margin-bottom: 4px;
        }

        .mobile-nav .nav-cta {
            text-align: center;
            display: block;
            margin-top: 6px;
        }

        /* Buttons */
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--secondary);
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(184, 114, 45, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Badge / Tag */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 114, 45, 0.10);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid rgba(184, 114, 45, 0.25);
            white-space: nowrap;
        }

        .badge-secondary {
            background: rgba(31, 58, 54, 0.08);
            color: var(--secondary);
            border-color: rgba(31, 58, 54, 0.20);
        }

        .badge-accent {
            background: rgba(212, 155, 74, 0.12);
            color: #A8742D;
            border-color: rgba(212, 155, 74, 0.30);
        }

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .card-warm {
            background: var(--card-bg-warm);
        }

        /* Hero / Banner */
        .category-banner {
            background: linear-gradient(135deg, #FDF8F0 0%, #FAF6F0 50%, #F0EDE7 100%);
            border-bottom: 1px solid var(--border);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.06);
            pointer-events: none;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -50px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(31, 58, 54, 0.04);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: color var(--transition);
        }

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

        .breadcrumb .separator {
            color: #C5BBAF;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-banner h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 0.5px;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
            line-height: 1.35;
        }

        .category-banner .subtitle {
            font-size: 17px;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.80;
            position: relative;
            z-index: 1;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            position: sticky;
            top: 88px;
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid rgba(184, 114, 45, 0.20);
            letter-spacing: 0.3px;
        }

        .sidebar-item {
            padding: 14px 0;
            border-bottom: 1px solid #F0E8DE;
            display: block;
            transition: all var(--transition);
        }

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

        .sidebar-item:hover {
            padding-left: 6px;
        }

        .sidebar-item .meta {
            font-size: 12px;
            color: #A99F93;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .sidebar-item .meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .sidebar-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.55;
            transition: color var(--transition);
            margin-bottom: 4px;
        }

        .sidebar-item:hover h4 {
            color: var(--primary);
        }

        .sidebar-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Article content */
        .article-body {
            font-size: 16px;
            line-height: 1.90;
            color: var(--text-main);
        }

        .article-body p {
            margin-bottom: 1.4em;
        }

        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            margin: 2em 0 0.8em;
            letter-spacing: 0.3px;
            line-height: 1.45;
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-main);
            margin: 1.6em 0 0.6em;
        }

        .article-body .highlight-box {
            background: rgba(184, 114, 45, 0.06);
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 1.5em 0;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.80;
        }

        .article-body .image-block {
            margin: 2em 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .article-body .image-block img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body .image-caption {
            font-size: 13px;
            color: #A99F93;
            padding: 10px 16px;
            background: var(--card-bg-warm);
            border-top: 1px solid var(--border);
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: rgba(184, 114, 45, 0.20);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px rgba(184, 114, 45, 0.30);
        }

        .timeline-item .date {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }

        .timeline-item h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.50;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            transition: color var(--transition);
            min-height: 56px;
            text-align: left;
            width: 100%;
            background: none;
            border: none;
            font-family: inherit;
        }

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

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
            transition: all var(--transition);
            font-weight: 400;
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            background: #F7F3ED;
            font-size: 15px;
            line-height: 1.80;
            color: var(--text-sub);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 16px 22px 20px;
        }

        /* CTA */
        .cta-section {
            background: var(--secondary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            color: #FAFAF7;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -30px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.15);
        }

        .cta-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(250, 250, 247, 0.78);
            max-width: 500px;
            line-height: 1.75;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-primary {
            position: relative;
            z-index: 1;
            background: var(--primary);
            color: #FFFFFF;
        }

        .cta-section .btn-primary:hover {
            background: var(--primary-hover);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(250, 250, 247, 0.85);
            margin-top: 80px;
            padding: 56px 0 32px;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 22px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 12px;
            letter-spacing: 0.8px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.65);
            line-height: 1.75;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FAFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(250, 250, 247, 0.65);
            padding: 5px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(250, 250, 247, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.50);
        }

        .footer-bottom p {
            margin-bottom: 4px;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.60);
            transition: color var(--transition);
            font-size: 13px;
        }

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

        .footer-links span {
            color: rgba(250, 250, 247, 0.30);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-search {
                width: 160px;
            }

            .nav-quick-link {
                display: none;
            }

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

            .category-banner h1 {
                font-size: 30px;
            }

            .cta-section {
                padding: 36px 28px;
                flex-direction: column;
                text-align: center;
            }

            .cta-section p {
                max-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .site-header {
                height: 56px;
            }

            .mobile-nav {
                top: 56px;
            }

            .nav-logo-text {
                font-size: 16px;
            }

            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }

            .nav-cta {
                display: none;
            }

            .nav-search {
                width: 130px;
                padding: 5px 10px;
            }

            .nav-search input {
                font-size: 13px;
            }

            .category-banner {
                padding: 36px 0 32px;
            }

            .category-banner h1 {
                font-size: 24px;
                letter-spacing: 0.2px;
            }

            .category-banner .subtitle {
                font-size: 15px;
            }

            .breadcrumb {
                font-size: 12px;
                margin-bottom: 14px;
                flex-wrap: wrap;
            }

            .sidebar-card {
                position: static;
                margin-top: 28px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.80;
            }

            .article-body h2 {
                font-size: 19px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
                min-height: 48px;
            }

            .faq-answer {
                font-size: 14px;
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 12px 16px 16px;
            }

            .cta-section {
                padding: 28px 20px;
                border-radius: 12px;
            }

            .cta-section h2 {
                font-size: 20px;
            }

            .cta-section p {
                font-size: 14px;
            }

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

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

            .timeline {
                padding-left: 22px;
            }

            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
                top: 5px;
            }

            .timeline::before {
                left: 6px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .article-body .highlight-box {
                padding: 12px 14px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .nav-search {
                display: none;
            }

            .category-banner h1 {
                font-size: 22px;
            }

            .category-banner .subtitle {
                font-size: 14px;
                line-height: 1.70;
            }

            .cta-section h2 {
                font-size: 18px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

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

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }

        .nav-hamburger:hover {
            background: var(--bg-alt);
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Mobile nav */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg);
            z-index: 99;
            padding: 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
            border-top: 1px solid var(--border);
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
        }

        .mobile-menu .nav-link.active::after {
            display: none;
        }

        .mobile-menu .nav-search {
            width: 100%;
            margin-bottom: 16px;
        }

        .mobile-menu .nav-cta {
            display: block;
            text-align: center;
            margin-top: 12px;
        }

        /* Buttons */
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            text-align: center;
            line-height: 1.5;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.35);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-block;
            background: transparent;
            color: var(--secondary);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--secondary);
            transition: all var(--transition);
            text-align: center;
            line-height: 1.5;
        }

        .btn-secondary:hover {
            background: rgba(31, 58, 54, 0.06);
            border-color: var(--secondary);
        }

        .btn-light-outline {
            display: inline-block;
            background: transparent;
            color: #FAFAF7;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(250, 250, 247, 0.5);
            transition: all var(--transition);
            text-align: center;
            line-height: 1.5;
        }

        .btn-light-outline:hover {
            background: rgba(250, 250, 247, 0.1);
            border-color: #FAFAF7;
        }

        /* Page banner */
        .page-banner {
            background-color: var(--secondary);
            background-image: linear-gradient(rgba(31, 58, 54, 0.88), rgba(31, 58, 54, 0.92)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: #FAFAF7;
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
        }

        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(212, 155, 74, 0.2);
            color: var(--accent);
            border: 1px solid rgba(212, 155, 74, 0.4);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: 1px;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #FAFAF7;
        }

        .page-banner p {
            font-size: 16px;
            color: rgba(250, 250, 247, 0.85);
            max-width: 700px;
            line-height: 1.85;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.7);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(250, 250, 247, 0.7);
            transition: color var(--transition);
        }

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

        .breadcrumb .separator {
            color: rgba(250, 250, 247, 0.5);
        }

        .breadcrumb .current {
            color: var(--accent);
        }

        /* Article body */
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            margin-top: 48px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--secondary);
            margin-top: 28px;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .article-body p {
            color: var(--text-sub);
            margin-bottom: 16px;
            line-height: 1.9;
        }

        .article-body blockquote {
            background: var(--card-bg-warm);
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            font-style: normal;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.85;
        }

        .article-body blockquote p {
            margin-bottom: 0;
            color: var(--text-main);
        }

        .article-body ul,
        .article-body ol {
            margin: 16px 0 24px;
            padding-left: 22px;
        }

        .article-body ul li,
        .article-body ol li {
            margin-bottom: 10px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .article-body ul li::marker {
            color: var(--primary);
        }

        /* Article meta */
        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .article-meta .meta-tag {
            background: rgba(184, 114, 45, 0.08);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }

        /* Info card */
        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }

        .info-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .info-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .info-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-main);
            transition: all var(--transition);
            gap: 16px;
            min-height: 56px;
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.03);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            transition: all var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            background: #F7F3ED;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 18px 24px;
            border-top-color: var(--border);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFFFFF;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.85;
            margin: 0;
        }

        /* Related links */
        .related-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            transition: all var(--transition);
            gap: 16px;
        }

        .related-link:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .related-link span {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
        }

        .related-link .arrow {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* CTA section */
        .cta-section {
            background: var(--secondary);
            padding: 64px 0;
            color: #FAFAF7;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(250, 250, 247, 0.82);
            margin-bottom: 28px;
            font-size: 15px;
            line-height: 1.85;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #FAFAF7;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .footer-brand p {
            color: rgba(250, 250, 247, 0.75);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FAFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(250, 250, 247, 0.75);
            font-size: 14px;
            padding: 5px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(250, 250, 247, 0.15);
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(250, 250, 247, 0.65);
            margin-bottom: 4px;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.65);
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.75);
            transition: color var(--transition);
        }

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

        .footer-links span {
            color: rgba(250, 250, 247, 0.4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-search {
                width: 160px;
            }
            .nav-right {
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 60px;
            }
            .container,
            .container-narrow {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-search {
                display: none;
            }
            .nav-quick-link {
                display: none;
            }
            .nav-cta {
                padding: 7px 16px;
                font-size: 13px;
            }
            .mobile-menu {
                top: 60px;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .article-body h2 {
                font-size: 20px;
                margin-top: 32px;
            }
            .article-body h3 {
                font-size: 17px;
            }
            .article-body blockquote {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
                min-height: 48px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 14px 16px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .related-link {
                padding: 12px 16px;
            }
            .related-link span {
                font-size: 14px;
            }
            .info-card {
                padding: 20px;
                margin-bottom: 12px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 22px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .btn-primary,
            .btn-secondary {
                display: block;
                width: 100%;
                text-align: center;
            }
            .article-body ul,
            .article-body ol {
                padding-left: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
            --section-pad: 80px;
            --section-pad-mobile: 52px;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background-color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(43, 38, 34, 0.09);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

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

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-link {
            padding: 8px 13px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible,
        .btn-outline:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 6px;
            border: 1px solid transparent;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-hamburger:hover {
            background: rgba(184, 114, 45, 0.06);
            border-color: var(--border);
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--secondary);
            transition: all var(--transition);
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(184, 114, 45, 0.22);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 14px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--secondary);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid var(--secondary);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(31, 58, 54, 0.06);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #FFFFFF;
            color: var(--secondary);
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            border: 1px solid var(--border);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(184, 114, 45, 0.04);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        /* ========== Banner / Page Hero ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #F3EBE0 0%, #FAF6F0 45%, #F7EFE3 100%);
            padding: 70px 0 60px;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.07);
            border: 1px solid rgba(184, 114, 45, 0.15);
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(31, 58, 54, 0.04);
            border: 1px solid rgba(31, 58, 54, 0.1);
            pointer-events: none;
        }

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

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

        .breadcrumb a {
            color: var(--text-sub);
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: #B8AFA3;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.35;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .page-banner .banner-sub {
            font-size: 17px;
            color: var(--text-sub);
            max-width: 780px;
            line-height: 1.85;
        }

        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 22px;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-sub);
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 5px 16px;
            transition: all var(--transition);
        }

        .banner-tag:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: rgba(212, 155, 74, 0.06);
        }

        /* ========== Sections ========== */
        .section {
            padding: var(--section-pad) 0;
        }

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

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 40px;
        }

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

        .section-head .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        /* ========== Feature Alternating Blocks ========== */
        .feature-alt {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 60px;
        }

        .feature-alt:last-child {
            margin-bottom: 0;
        }

        .feature-alt.reverse {
            flex-direction: row-reverse;
        }

        .feature-alt-img {
            flex: 1 1 44%;
            min-width: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            aspect-ratio: 16 / 10;
            background: #F0EDE7;
            position: relative;
        }

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

        .feature-alt-img:hover img {
            transform: scale(1.03);
        }

        .feature-alt-body {
            flex: 1 1 56%;
            min-width: 0;
        }

        .feature-alt-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(184, 114, 45, 0.08);
            border: 1px solid rgba(184, 114, 45, 0.2);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .feature-alt-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.45;
            margin-bottom: 14px;
        }

        .feature-alt-body p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .feature-alt-list {
            list-style: none;
            padding: 0;
            margin: 12px 0 18px;
        }

        .feature-alt-list li {
            position: relative;
            padding-left: 22px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .feature-alt-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            border: 2px solid rgba(212, 155, 74, 0.25);
        }

        .feature-alt-action {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        /* ========== Data Strip ========== */
        .data-strip {
            background: var(--secondary);
            padding: 48px 0;
            border-radius: var(--radius-lg);
            margin-top: 10px;
            position: relative;
            overflow: hidden;
        }

        .data-strip::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.08);
            border: 1px solid rgba(212, 155, 74, 0.2);
            pointer-events: none;
        }

        .data-strip .container {
            position: relative;
            z-index: 1;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-item {
            text-align: center;
            padding: 8px 16px;
        }

        .data-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
            letter-spacing: 1px;
        }

        .data-label {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.78);
            margin-top: 4px;
        }

        /* ========== Process Steps ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .process-step {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .process-step:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(184, 114, 45, 0.3);
        }

        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.1);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
            border: 2px solid rgba(184, 114, 45, 0.2);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .faq-item:hover {
            border-color: rgba(184, 114, 45, 0.25);
        }

        .faq-item.open {
            border-color: rgba(184, 114, 45, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            transition: all var(--transition);
            gap: 12px;
            min-height: 56px;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFFFFF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.85;
            background: #F7F3ED;
            border-radius: 8px;
            padding: 14px 18px;
        }

        /* ========== CTA / Contact ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--secondary) 0%, #1A302B 60%, #162824 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: -100px;
            transform: translateY(-50%);
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.06);
            border: 1px solid rgba(184, 114, 45, 0.15);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: 5%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.05);
            border: 1px solid rgba(212, 155, 74, 0.12);
            pointer-events: none;
        }

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

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #FAFAF7;
            line-height: 1.45;
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(250, 250, 247, 0.75);
            line-height: 1.85;
            margin-bottom: 24px;
        }

        .cta-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            color: rgba(250, 250, 247, 0.8);
            font-size: 14px;
        }

        .cta-contact-item svg {
            width: 18px;
            height: 18px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .contact-form {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
        }

        .contact-form h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .contact-form .form-hint {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 11px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--text-main);
            background: #FDFBF7;
            transition: all var(--transition);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #B8AFA3;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-submit {
            width: 100%;
            margin-top: 6px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--secondary);
            color: #FAFAF7;
            padding: 56px 0 28px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 12px;
            letter-spacing: 0.6px;
        }

        .footer-brand p {
            color: rgba(250, 250, 247, 0.68);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            color: rgba(250, 250, 247, 0.68);
            font-size: 14px;
            margin-bottom: 9px;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(250, 250, 247, 0.15);
            padding-top: 22px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.55);
        }

        .footer-bottom p {
            margin-bottom: 2px;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.68);
            transition: color var(--transition);
        }

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

        .footer-links span {
            color: rgba(250, 250, 247, 0.3);
        }

        /* ========== Mobile Nav Drawer ========== */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(43, 38, 34, 0.45);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-nav-overlay.visible {
            opacity: 1;
        }

        .mobile-nav-panel {
            position: fixed;
            top: 64px;
            right: -320px;
            width: 300px;
            max-width: 85vw;
            height: calc(100vh - 64px);
            background: var(--bg);
            z-index: 99;
            padding: 20px 16px 40px;
            overflow-y: auto;
            transition: right 0.3s ease;
            box-shadow: -4px 0 20px rgba(43, 38, 34, 0.12);
            border-left: 1px solid var(--border);
        }

        .mobile-nav-panel.open {
            right: 0;
        }

        .mobile-nav-panel .nav-search {
            width: 100%;
            margin-bottom: 16px;
        }

        .mobile-nav-panel .nav-link {
            display: block;
            padding: 12px 14px;
            font-size: 15px;
            border-bottom: 1px solid rgba(229, 221, 210, 0.5);
            border-radius: 0;
        }

        .mobile-nav-panel .nav-link.active::after {
            display: none;
        }

        .mobile-nav-panel .nav-cta {
            display: block;
            text-align: center;
            margin-top: 16px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-search {
                width: 160px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

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

            .feature-alt {
                gap: 28px;
            }

            .feature-alt-img {
                flex-basis: 42%;
            }

            .feature-alt-body {
                flex-basis: 58%;
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 15px;
                line-height: 1.75;
            }

            .site-header {
                height: 60px;
            }

            .nav-search {
                display: none;
            }

            .nav-quick-link {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .mobile-nav-overlay.visible {
                display: block;
            }

            .page-banner {
                padding: 48px 0 40px;
            }

            .page-banner h1 {
                font-size: 26px;
                line-height: 1.5;
            }

            .page-banner .banner-sub {
                font-size: 15px;
                line-height: 1.8;
            }

            .banner-tags {
                gap: 8px;
            }

            .banner-tag {
                font-size: 12px;
                padding: 4px 12px;
            }

            .section {
                padding: var(--section-pad-mobile) 0;
            }

            .section-title {
                font-size: 23px;
                line-height: 1.5;
            }

            .section-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }

            .section-head {
                margin-bottom: 28px;
            }

            .feature-alt,
            .feature-alt.reverse {
                flex-direction: column;
                gap: 20px;
                margin-bottom: 44px;
            }

            .feature-alt-img {
                flex-basis: 100%;
                width: 100%;
                aspect-ratio: 16 / 10;
            }

            .feature-alt-body {
                flex-basis: 100%;
                width: 100%;
            }

            .feature-alt-body h2 {
                font-size: 20px;
                line-height: 1.5;
            }

            .feature-alt-body p {
                font-size: 14px;
                line-height: 1.8;
            }

            .feature-alt-list li {
                font-size: 13px;
            }

            .feature-alt-action {
                gap: 10px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .data-number {
                font-size: 28px;
            }

            .data-label {
                font-size: 12px;
            }

            .process-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .process-step {
                padding: 22px 18px;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 16px;
                min-height: 52px;
            }

            .faq-answer p {
                font-size: 14px;
                line-height: 1.8;
                padding: 12px 14px;
            }

            .cta-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .cta-title {
                font-size: 22px;
            }

            .cta-section {
                padding: 52px 0;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                text-align: left;
            }

            .mobile-nav-panel {
                top: 60px;
                height: calc(100vh - 60px);
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .page-banner h1 {
                font-size: 22px;
            }

            .page-banner .banner-sub {
                font-size: 14px;
            }

            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .data-number {
                font-size: 24px;
            }

            .section-title {
                font-size: 20px;
            }

            .feature-alt-body h2 {
                font-size: 18px;
            }

            .process-num {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .cta-title {
                font-size: 19px;
            }

            .nav-logo-text {
                font-size: 16px;
            }

            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #B8722D;
            --primary-hover: #9A5D23;
            --secondary: #1F3A36;
            --accent: #D49B4A;
            --bg: #FAF6F0;
            --bg-alt: #F0EDE7;
            --text-main: #2B2622;
            --text-sub: #5C554D;
            --card-bg: #FFFFFF;
            --card-bg-warm: #FDFBF7;
            --border: #E5DDD2;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 2px 8px rgba(43, 38, 34, 0.06);
            --shadow-card-hover: 0 6px 16px rgba(43, 38, 34, 0.10);
            --transition: 0.2s ease;
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', '思源黑体', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

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

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

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

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(250, 246, 240, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(43, 38, 34, 0.08);
        }

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

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

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FAFAF7;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            color: var(--secondary);
            letter-spacing: 0.8px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-link {
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-sub);
            border-radius: 6px;
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(184, 114, 45, 0.06);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: #F0EDE7;
            border-radius: 20px;
            padding: 6px 14px;
            gap: 8px;
            width: 200px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .nav-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-main);
            width: 100%;
        }

        .nav-search input::placeholder {
            color: #A99F93;
        }

        .nav-quick-link {
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 8px;
            white-space: nowrap;
            transition: color var(--transition);
        }

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

        .nav-cta {
            background: var(--primary);
            color: #FFFFFF;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 10px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .nav-cta:focus-visible,
        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        .nav-hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Buttons */
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 2px 6px rgba(184, 114, 45, 0.25);
            display: inline-block;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(184, 114, 45, 0.32);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--secondary);
            padding: 11px 25px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid var(--secondary);
            transition: all var(--transition);
            display: inline-block;
            text-align: center;
        }

        .btn-secondary:hover {
            background: rgba(184, 114, 45, 0.08);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            transition: all var(--transition);
            overflow: hidden;
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .card-warm {
            background: var(--card-bg-warm);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(184, 114, 45, 0.1);
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .tag-secondary {
            background: rgba(31, 58, 54, 0.08);
            color: var(--secondary);
        }

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

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

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 40px;
            max-width: 720px;
            line-height: 1.8;
        }

        /* Hero Banner */
        .hero-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--secondary);
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(31, 58, 54, 0.75) 0%, rgba(31, 58, 54, 0.88) 100%);
            z-index: 1;
        }

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

        .hero-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.7);
            margin-bottom: 24px;
        }

        .hero-banner .breadcrumb a {
            color: rgba(250, 250, 247, 0.7);
            transition: color var(--transition);
        }

        .hero-banner .breadcrumb a:hover {
            color: var(--accent);
        }

        .hero-banner .breadcrumb span {
            color: rgba(250, 250, 247, 0.45);
        }

        .hero-banner h1 {
            font-size: 38px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 18px;
            line-height: 1.35;
            letter-spacing: 0.5px;
        }

        .hero-banner .hero-desc {
            font-size: 17px;
            color: rgba(250, 250, 247, 0.82);
            max-width: 680px;
            line-height: 1.8;
        }

        /* Quick topics */
        .quick-topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .quick-topic-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            text-align: center;
        }

        .quick-topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--accent);
        }

        .quick-topic-card .topic-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--primary);
        }

        .quick-topic-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .quick-topic-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin: 0;
        }

        /* Featured content */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .featured-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .featured-card .featured-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .featured-card .featured-body {
            padding: 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card .featured-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .featured-card .featured-body p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 18px;
            flex: 1;
        }

        .featured-card .featured-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-sub);
        }

        /* List items */
        .list-items {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .list-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .list-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-1px);
            border-color: var(--accent);
        }

        .list-item .item-date {
            flex-shrink: 0;
            width: 56px;
            text-align: center;
            background: rgba(184, 114, 45, 0.08);
            border-radius: 8px;
            padding: 8px 4px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
        }

        .list-item .item-content {
            flex: 1;
        }

        .list-item .item-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .list-item .item-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        .list-item .item-link {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            transition: color var(--transition);
        }

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

        /* Step guide */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guide-step {
            background: var(--card-bg-warm);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }

        .guide-step:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .guide-step .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .guide-step h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .guide-step p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* Subscribe CTA */
        .subscribe-box {
            background: var(--secondary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 155, 74, 0.15);
            z-index: 0;
        }

        .subscribe-box .subscribe-content {
            position: relative;
            z-index: 1;
            flex: 1;
        }

        .subscribe-box h3 {
            font-size: 24px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 10px;
        }

        .subscribe-box p {
            font-size: 15px;
            color: rgba(250, 250, 247, 0.78);
            line-height: 1.7;
            margin: 0;
        }

        .subscribe-box .subscribe-form {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        .subscribe-box .subscribe-form input {
            background: rgba(250, 250, 247, 0.12);
            border: 1px solid rgba(250, 250, 247, 0.25);
            border-radius: var(--radius-btn);
            padding: 12px 18px;
            color: #FAFAF7;
            font-size: 14px;
            width: 260px;
            transition: all var(--transition);
        }

        .subscribe-box .subscribe-form input::placeholder {
            color: rgba(250, 250, 247, 0.5);
        }

        .subscribe-box .subscribe-form input:focus {
            border-color: var(--accent);
            background: rgba(250, 250, 247, 0.18);
            box-shadow: 0 0 0 3px rgba(212, 155, 74, 0.2);
        }

        .subscribe-box .subscribe-form .btn-primary {
            background: var(--accent);
            color: var(--secondary);
            font-weight: 700;
            box-shadow: none;
        }

        .subscribe-box .subscribe-form .btn-primary:hover {
            background: #C38D3E;
            box-shadow: 0 4px 10px rgba(212, 155, 74, 0.3);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            min-height: 56px;
            transition: background var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(184, 114, 45, 0.04);
        }

        .faq-question span {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 114, 45, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            transition: all var(--transition);
            font-weight: 700;
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: #F7F3ED;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            padding: 16px 22px 20px;
            max-height: 300px;
        }

        /* Contact form */
        .contact-section {
            background: var(--bg-alt);
        }

        .contact-form-wrap {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 36px 36px 40px;
        }

        .contact-form-wrap h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text-main);
            transition: all var(--transition);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(184, 114, 45, 0.12);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #A99F93;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 110px;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #FAFAF7;
            margin-bottom: 12px;
            letter-spacing: 0.8px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(250, 250, 247, 0.7);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: #FAFAF7;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(250, 250, 247, 0.7);
            padding: 4px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(250, 250, 247, 0.12);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(250, 250, 247, 0.55);
            margin: 0;
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(250, 250, 247, 0.55);
        }

        .footer-links a {
            color: rgba(250, 250, 247, 0.7);
            transition: color var(--transition);
        }

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

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-links {
                gap: 0;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-search {
                width: 160px;
            }
            .quick-topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                flex-direction: column;
                text-align: center;
                padding: 36px 24px;
            }
            .subscribe-box .subscribe-form {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .subscribe-box .subscribe-form input {
                width: 100%;
                max-width: 380px;
            }
        }

        @media (max-width: 767px) {
            body {
                font-size: 15px;
                line-height: 1.75;
            }
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }
            .site-header {
                height: 56px;
            }
            .nav-container {
                gap: 12px;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .nav-logo-text {
                font-size: 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: rgba(250, 246, 240, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(43, 38, 34, 0.1);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 10px 8px;
                font-size: 15px;
                width: 100%;
                border-radius: 0;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-quick-link {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
            }
            .hero-banner {
                padding: 48px 0 40px;
            }
            .hero-banner h1 {
                font-size: 26px;
            }
            .hero-banner .hero-desc {
                font-size: 15px;
            }
            .quick-topics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .featured-card .featured-img {
                height: 160px;
            }
            .featured-card .featured-body {
                padding: 20px;
            }
            .list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px 18px;
            }
            .list-item .item-date {
                width: auto;
                padding: 4px 10px;
                font-size: 12px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .subscribe-box {
                padding: 28px 18px;
            }
            .subscribe-box h3 {
                font-size: 20px;
            }
            .subscribe-box .subscribe-form input {
                max-width: 100%;
            }
            .faq-question span {
                font-size: 15px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .contact-form-wrap {
                padding: 24px 20px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 21px;
            }
            .nav-cta {
                display: none;
            }
        }