/* roulang page: index */
:root {
            --color-primary: #1a1a1f;
            --color-accent: #c8a45c;
            --color-accent-hover: #d4b76e;
            --color-surface: #ffffff;
            --color-bg: #f7f5f0;
            --color-bg-alt: #f0ede6;
            --color-text: #1a1a1f;
            --color-text-soft: #5c5c64;
            --color-text-muted: #8a8a92;
            --color-border: #e0dcd4;
            --color-border-light: #ebe7e0;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.09);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --sidebar-width: 260px;
            --header-mobile-height: 60px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            line-height: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.25;
            font-weight: 600;
        }
        p {
            margin: 0;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-primary);
            color: #ffffff;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-smooth);
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
        }

        .sidebar-logo {
            padding: 28px 24px 20px;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #ffffff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 16px 24px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .sidebar-nav a.active {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(200, 164, 92, 0.35);
        }
        .sidebar-nav a.active i {
            opacity: 1;
        }

        .sidebar-cta {
            padding: 16px 20px 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .sidebar-cta .btn-sidebar-cta {
            display: block;
            width: 100%;
            text-align: center;
            padding: 12px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            background: transparent;
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .sidebar-cta .btn-sidebar-cta:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.3);
        }

        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-mobile-height);
            background: var(--color-primary);
            color: #ffffff;
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .mobile-header .mobile-logo {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-logo .logo-icon-sm {
            width: 28px;
            height: 28px;
            border-radius: 5px;
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .hamburger-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #ffffff;
            font-size: 1.3rem;
            transition: background var(--transition-fast);
        }
        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }
        .sidebar-overlay.active {
            display: block;
            opacity: 1;
        }

        .section {
            padding: 60px 40px;
        }
        .section-sm {
            padding: 44px 40px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-soft);
            margin-bottom: 36px;
            letter-spacing: 0.01em;
        }

        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            padding: 80px 40px;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 31, 0.78) 0%, rgba(26, 26, 31, 0.45) 55%, rgba(26, 26, 31, 0.3) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(200, 164, 92, 0.2);
            border: 1px solid rgba(200, 164, 92, 0.4);
            color: var(--color-accent);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 16px rgba(200, 164, 92, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 24px rgba(200, 164, 92, 0.45);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 164, 92, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #ffffff;
            font-weight: 500;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .brand-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            cursor: pointer;
            border: 1px solid var(--color-border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .brand-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }
        .brand-card .card-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .brand-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .brand-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .brand-card .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .brand-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .brand-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .brand-card .card-desc {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.55;
            flex: 1;
        }
        .brand-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
        }
        .brand-card:hover .card-link {
            gap: 10px;
        }

        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            text-align: center;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }
        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
            line-height: 1;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            margin-top: 8px;
            letter-spacing: 0.02em;
        }
        .stat-card .stat-trend {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: #3a8f5c;
            margin-top: 4px;
        }

        .service-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .service-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }
        .service-card .svc-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(200, 164, 92, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .service-card .svc-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .service-card .svc-info p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        .news-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-accent);
        }
        .news-card .news-img {
            height: 180px;
            overflow: hidden;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .news-card:hover .news-img img {
            transform: scale(1.05);
        }
        .news-card .news-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 6px;
        }
        .news-card .news-title {
            font-size: 0.98rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text);
            flex: 1;
        }
        .news-list-item {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
            align-items: baseline;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .news-list-item:hover {
            color: var(--color-accent);
            padding-left: 6px;
        }
        .news-list-item .news-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
            margin-top: 7px;
        }
        .news-list-item .news-item-title {
            font-size: 0.95rem;
            font-weight: 500;
            line-height: 1.5;
            flex: 1;
        }
        .news-list-item .news-item-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }

        .story-block {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }
        .story-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 31, 0.5) 0%, rgba(26, 26, 31, 0.72) 100%);
            z-index: 1;
        }
        .story-block .story-content {
            position: relative;
            z-index: 2;
            padding: 50px 40px;
            max-width: 560px;
            color: #ffffff;
        }
        .story-block .story-tag {
            font-size: 0.8rem;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 12px;
        }
        .story-block .story-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .story-block .story-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-surface);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 0.98rem;
            font-weight: 600;
            cursor: pointer;
            background: transparent;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text);
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 1rem;
            transition: transform var(--transition-fast);
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .cta-section {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 31, 0.7);
            z-index: 1;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            padding: 40px;
            max-width: 500px;
            color: #ffffff;
        }
        .cta-section .cta-title {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .cta-section .cta-desc {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 44px 40px 28px;
            font-size: 0.88rem;
            letter-spacing: 0.01em;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-disclaimer {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8rem;
            line-height: 1.6;
            text-align: center;
        }

        @media (max-width: 1199px) {
            .section {
                padding: 44px 28px;
            }
            .section-sm {
                padding: 32px 28px;
            }
            .hero-section {
                padding: 60px 28px;
                min-height: 460px;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: var(--header-mobile-height);
            }
            .hero-section {
                min-height: 400px;
                padding: 50px 20px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section {
                padding: 36px 20px;
            }
            .section-sm {
                padding: 28px 20px;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .story-block {
                min-height: 280px;
            }
            .story-block .story-content {
                padding: 30px 20px;
            }
            .story-block .story-title {
                font-size: 1.4rem;
            }
            .footer {
                padding: 32px 20px 22px;
            }
        }

        @media (max-width: 767px) {
            .hero-section {
                min-height: 340px;
                padding: 40px 16px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .btn-primary,
            .btn-outline {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .section {
                padding: 28px 16px;
            }
            .section-sm {
                padding: 22px 16px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-subtitle {
                font-size: 0.85rem;
                margin-bottom: 24px;
            }
            .brand-card .card-img-wrap {
                height: 160px;
            }
            .brand-card .card-body {
                padding: 14px 14px 18px;
            }
            .brand-card .card-title {
                font-size: 1rem;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .service-card {
                flex-direction: column;
                padding: 20px 16px;
                gap: 12px;
            }
            .news-card .news-img {
                height: 140px;
            }
            .story-block {
                min-height: 240px;
                border-radius: var(--radius-lg);
            }
            .story-block .story-content {
                padding: 24px 16px;
            }
            .story-block .story-title {
                font-size: 1.2rem;
            }
            .cta-section {
                min-height: 240px;
                border-radius: var(--radius-lg);
            }
            .cta-section .cta-title {
                font-size: 1.3rem;
            }
            .cta-section .cta-content {
                padding: 28px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .footer {
                padding: 28px 16px 20px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 15px 16px;
            }
            .faq-answer {
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-section {
                min-height: 300px;
                padding: 32px 14px;
            }
            .hero-desc {
                font-size: 0.8rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 10px 16px;
                font-size: 0.8rem;
                border-radius: var(--radius-sm);
            }
            .section {
                padding: 22px 12px;
            }
            .section-sm {
                padding: 18px 12px;
            }
            .section-title {
                font-size: 1.15rem;
            }
            .brand-card .card-img-wrap {
                height: 140px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .story-block {
                min-height: 200px;
            }
            .story-block .story-title {
                font-size: 1.05rem;
            }
            .cta-section .cta-title {
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
/* 设计变量与精细化定制 */
    :root {
      --brand-dark: #0F172A;
      --brand-primary: #1E293B;
      --brand-accent: #C5A46B;
      --brand-soft: #F8FAFC;
      --brand-muted: #64748B;
      --brand-light: #E2E8F0;
      --brand-card: #FFFFFF;
      --brand-footer: #0B1120;
      --radius-lg: 1rem;
      --radius-xl: 1.25rem;
      --shadow-soft: 0 10px 30px -10px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.02);
      --shadow-card: 0 1px 2px rgba(0,0,0,0.03), 0 4px 12px rgba(0,0,0,0.04);
    }

    body {
      font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
      background-color: #F8FAFC;
      color: #1E293B;
      margin: 0;
      padding: 0;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* 左侧固定导航 - App Shell 布局 */
    .sidebar {
      position: fixed;
      left: 0;
      top: 0;
      width: 260px;
      height: 100vh;
      background: linear-gradient(180deg, #0B1120 0%, #1E293B 100%);
      display: flex;
      flex-direction: column;
      padding: 2rem 1.5rem;
      z-index: 50;
      box-shadow: 4px 0 24px rgba(0,0,0,0.08);
      transition: transform 0.3s ease;
    }

    .sidebar-logo {
      font-family: 'Cormorant Garamond', 'Noto Serif SC', serif;
      font-size: 1.8rem;
      font-weight: 600;
      letter-spacing: 2px;
      color: #FFFFFF;
      margin-bottom: 2.5rem;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid rgba(255,255,255,0.15);
      padding-bottom: 1.5rem;
    }

    .sidebar-logo i {
      color: #C5A46B;
      font-size: 1.9rem;
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      flex: 1;
    }

    .sidebar-nav a {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 0.85rem 1.2rem;
      border-radius: 0.75rem;
      color: rgba(255,255,255,0.75);
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      transition: all 0.2s ease;
      letter-spacing: 0.3px;
    }

    .sidebar-nav a i {
      width: 20px;
      text-align: center;
      font-size: 1.1rem;
    }

    .sidebar-nav a:hover {
      background: rgba(255,255,255,0.08);
      color: #FFFFFF;
    }

    .sidebar-nav a.active {
      background: rgba(197, 164, 107, 0.15);
      color: #C5A46B;
      font-weight: 600;
      box-shadow: inset 0 0 0 1px rgba(197,164,107,0.2);
    }

    .sidebar-footer-note {
      margin-top: auto;
      color: rgba(255,255,255,0.35);
      font-size: 0.7rem;
      letter-spacing: 0.5px;
      text-align: center;
    }

    /* 主内容区 */
    .main-content {
      margin-left: 260px;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* 移动端菜单按钮 */
    .mobile-menu-btn {
      display: none;
      position: fixed;
      top: 1rem;
      left: 1rem;
      z-index: 60;
      background: #1E293B;
      color: white;
      border: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      font-size: 1.5rem;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }

    /* 通用容器 */
    .page-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2rem 2.5rem;
      width: 100%;
    }

    /* 卡片基础 */
    .premium-card {
      background: white;
      border-radius: 1.25rem;
      padding: 1.8rem;
      box-shadow: 0 1px 2px rgba(0,0,0,0.03), 0 4px 12px rgba(0,0,0,0.04);
      transition: all 0.25s ease;
      border: 1px solid #f1f5f9;
    }

    .premium-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 25px 50px -12px rgba(0,0,0,0.08);
      border-color: #e2e8f0;
    }

    .badge-accent {
      background: rgba(197, 164, 107, 0.1);
      color: #9e7f4b;
      padding: 0.25rem 0.9rem;
      border-radius: 30px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      display: inline-block;
    }

    .btn-primary {
      background: #1E293B;
      color: white;
      padding: 0.7rem 2rem;
      border-radius: 2.5rem;
      font-weight: 500;
      transition: all 0.25s;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      letter-spacing: 0.3px;
    }

    .btn-primary:hover {
      background: #0F172A;
      box-shadow: 0 10px 20px -8px rgba(15,23,42,0.3);
      transform: translateY(-1px);
    }

    .btn-outline {
      border: 1px solid #cbd5e1;
      background: transparent;
      color: #1E293B;
      padding: 0.7rem 2rem;
      border-radius: 2.5rem;
      font-weight: 500;
      transition: all 0.25s;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-outline:hover {
      border-color: #C5A46B;
      color: #9e7f4b;
      background: #fdfaf5;
    }

    /* 页脚 */
    .footer {
      background: #0B1120;
      color: #cbd5e1;
      padding: 3rem 2.5rem 2rem;
      margin-top: auto;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      max-width: 1200px;
      margin: 0 auto 2rem;
    }

    .footer-col h4 {
      color: white;
      margin-bottom: 1rem;
      font-weight: 600;
    }

    .footer-col ul {
      list-style: none;
      padding: 0;
    }

    .footer-col li {
      margin-bottom: 0.5rem;
    }

    .footer-col a {
      color: #94a3b8;
      text-decoration: none;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: #C5A46B;
    }

    .footer-disclaimer {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 1.5rem;
      max-width: 1200px;
      margin: 0 auto;
      color: #64748b;
      font-size: 0.8rem;
    }

    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid #e2e8f0;
      padding: 1.2rem 0;
    }

    .faq-question {
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.05rem;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: #475569;
      margin-top: 0;
    }

    .faq-item.open .faq-answer {
      max-height: 200px;
      margin-top: 0.8rem;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .sidebar {
        width: 240px;
        padding: 1.5rem 1rem;
      }
      .main-content {
        margin-left: 240px;
      }
      .page-container {
        padding: 2rem 1.5rem;
      }
    }

    @media (max-width: 768px) {
      .sidebar {
        transform: translateX(-100%);
        width: 280px;
        z-index: 55;
      }
      .sidebar.open {
        transform: translateX(0);
      }
      .main-content {
        margin-left: 0;
      }
      .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
      }
      .page-container {
        padding: 1.5rem 1rem;
      }
    }

    @media (max-width: 520px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .premium-card {
        padding: 1.2rem;
      }
    }

/* roulang page: category3 */
:root {
            --color-brand: #1c1c1e;
            --color-accent: #c9a96e;
            --color-accent-hover: #b8934f;
            --color-accent-light: rgba(201, 169, 110, 0.12);
            --color-surface: #fafaf7;
            --color-card: #ffffff;
            --color-text-primary: #2c2c2c;
            --color-text-muted: #6b6b6b;
            --color-text-light: #9a9a9a;
            --color-border-soft: #e8e5e0;
            --color-sidebar: #1a1a1d;
            --color-sidebar-hover: #252528;
            --color-sidebar-active: rgba(201, 169, 110, 0.18);
            --color-white: #ffffff;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
            --sidebar-width: 250px;
            --topbar-height: 56px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.2rem;
            --font-base: 1rem;
            --font-sm: 0.9rem;
            --font-xs: 0.8rem;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            font-size: var(--font-base);
            line-height: 1.7;
            color: var(--color-text-primary);
            background-color: var(--color-surface);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 600;
            color: var(--color-brand);
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-sidebar);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-smooth);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #1a1a1d;
            font-weight: 700;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .sidebar-nav a:hover {
            background: var(--color-sidebar-hover);
            color: var(--color-white);
        }

        .sidebar-nav a.active {
            background: var(--color-sidebar-active);
            color: var(--color-accent);
            font-weight: 600;
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            bottom: 10px;
            width: 4px;
            border-radius: 0 4px 4px 0;
            background: var(--color-accent);
        }

        .sidebar-cta {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sidebar-cta-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            background: var(--color-accent);
            color: #1a1a1d;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .sidebar-cta-btn:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 169, 110, 0.3);
        }

        /* ========== TOP BAR (Mobile) ========== */
        .topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--color-sidebar);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .topbar .hamburger {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--color-white);
            font-size: 1.25rem;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .topbar .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .topbar .topbar-brand {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-white);
            letter-spacing: 0.03em;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .sidebar-overlay.active {
            display: block;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--color-brand);
        }

        .page-banner .banner-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.45;
            filter: brightness(0.7);
        }

        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(26, 26, 29, 0.55) 0%,
                    rgba(26, 26, 29, 0.75) 60%,
                    rgba(26, 26, 29, 0.9) 100%);
        }

        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 40px;
            max-width: 800px;
        }

        .page-banner .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 16px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(201, 169, 110, 0.25);
        }

        .page-banner h1 {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .page-banner .banner-desc {
            font-size: var(--font-md);
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            max-width: 560px;
        }

        /* ========== CONTAINER ========== */
        .container-main {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--color-brand);
            margin-bottom: 8px;
        }

        .section-header .section-subtitle {
            font-size: var(--font-base);
            color: var(--color-text-muted);
            max-width: 520px;
            margin: 0 auto;
        }

        /* ========== SERVICE CARDS GRID ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-soft);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .service-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #f0ede8;
        }

        .service-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .service-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .service-card .card-img-wrap .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: 16px;
            background: rgba(26, 26, 29, 0.75);
            color: var(--color-accent);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.04em;
            backdrop-filter: blur(4px);
        }

        .service-card .card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 650;
            color: var(--color-brand);
            margin-bottom: 8px;
        }

        .service-card .card-body p {
            font-size: var(--font-sm);
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
        }

        .service-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--color-accent);
            transition: gap var(--transition-fast);
        }

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

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 28px 16px 24px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-soft);
            transition: all var(--transition-smooth);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-accent-light);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 14px;
            transition: all var(--transition-smooth);
        }

        .process-step:hover .step-number {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(201, 169, 110, 0.35);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 650;
            color: var(--color-brand);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: var(--font-xs);
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 52px;
            right: -16px;
            width: 32px;
            height: 1.5px;
            background: var(--color-border-soft);
            display: block;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* ========== FEATURED BLOCK (Image + Text) ========== */
        .featured-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            background: var(--color-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-soft);
        }

        .featured-block .featured-img {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            background: #f0ede8;
            min-height: 100%;
        }

        .featured-block .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .featured-block:hover .featured-img img {
            transform: scale(1.04);
        }

        .featured-block .featured-text {
            padding: 36px 40px 36px 8px;
        }

        .featured-block .featured-text .feat-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }

        .featured-block .featured-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-brand);
            margin-bottom: 12px;
        }

        .featured-block .featured-text p {
            font-size: var(--font-base);
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .featured-block .featured-text .feat-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .featured-block .featured-text .feat-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: var(--font-sm);
            color: var(--color-text-primary);
        }

        .featured-block .featured-text .feat-list li i {
            color: var(--color-accent);
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-soft);
            transition: all var(--transition-smooth);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: var(--font-sm);
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .stat-card .stat-icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            margin-bottom: 8px;
            opacity: 0.8;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-soft);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #d5cfc5;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: var(--font-base);
            font-weight: 600;
            color: var(--color-brand);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: transparent;
            border: none;
            font-family: inherit;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-smooth);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

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

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: var(--font-sm);
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-brand);
            border-radius: var(--radius-xl);
            overflow: hidden;
            position: relative;
        }

        .cta-section .cta-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            filter: brightness(0.6);
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            padding: 56px 48px;
            text-align: center;
        }

        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: var(--font-base);
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 30px;
            background: var(--color-accent);
            color: #1a1a1d;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 18px rgba(201, 169, 110, 0.3);
        }

        .btn-accent:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 169, 110, 0.45);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            background: transparent;
            color: var(--color-white);
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
        }

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

        /* ========== FOOTER ========== */
        .footer {
            background: #141416;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 32px 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-col h4 {
            color: var(--color-white);
            font-size: 0.95rem;
            font-weight: 650;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

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

        .footer-disclaimer {
            max-width: 1120px;
            margin: 0 auto;
            padding: 20px 32px 0;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
            text-align: center;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 240px;
                --font-xl: 2.2rem;
                --font-lg: 1.5rem;
                --font-md: 1.05rem;
            }

            .sidebar {
                transform: translateX(-100%);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .topbar {
                display: flex;
            }

            .sidebar-overlay.active {
                display: block;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--topbar-height);
            }

            .page-banner {
                min-height: 300px;
            }

            .page-banner .banner-content {
                padding: 44px 24px;
            }

            .service-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

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

            .process-step::after {
                display: none;
            }

            .featured-block {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .featured-block .featured-img {
                aspect-ratio: 16 / 9;
                min-height: auto;
            }

            .featured-block .featured-text {
                padding: 28px 24px;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

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

            .container-main {
                padding: 0 20px;
            }

            .section {
                padding: 44px 0;
            }

            .cta-section .cta-inner {
                padding: 40px 24px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --sidebar-width: 260px;
                --font-xl: 1.7rem;
                --font-lg: 1.35rem;
                --font-md: 1rem;
                --font-base: 0.9rem;
            }

            .page-banner {
                min-height: 260px;
            }

            .page-banner .banner-content {
                padding: 32px 16px;
            }

            .page-banner h1 {
                font-size: 1.5rem;
            }

            .page-banner .banner-desc {
                font-size: 0.9rem;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-card {
                padding: 20px 14px;
            }

            .stat-card .stat-number {
                font-size: 2rem;
            }

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

            .container-main {
                padding: 0 14px;
            }

            .section {
                padding: 36px 0;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .featured-block .featured-text {
                padding: 20px 16px;
            }

            .featured-block .featured-text h3 {
                font-size: 1.2rem;
            }

            .cta-section h3 {
                font-size: 1.3rem;
            }

            .cta-section .cta-inner {
                padding: 32px 18px;
            }

            .btn-accent,
            .btn-outline-light {
                padding: 12px 24px;
                font-size: 0.85rem;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }

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

            .sidebar-brand {
                padding: 20px 16px 16px;
            }
        }

        @media (max-width: 380px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root {
            --color-brand: #1a1a24;
            --color-accent: #c9a96e;
            --color-accent-light: #d4af37;
            --color-accent-deep: #a6844d;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #1a1a24;
            --color-text-soft: #4a4a5a;
            --color-text-muted: #7a7a8a;
            --color-border: #e8e6e1;
            --color-border-light: #f0efe9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.75rem;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 32px rgba(0, 0, 0, 0.06);
            --shadow-nav: 2px 0 24px rgba(0, 0, 0, 0.12);
            --shadow-gold: 0 2px 12px rgba(201, 169, 110, 0.25);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 256px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
            position: relative;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-brand);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-nav);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-logo {
            padding: 1.5rem 1.25rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-deep));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .sidebar-logo .logo-text {
            font-family: 'Playfair Display', 'Noto Serif SC', serif;
            font-size: 1.15rem;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .sidebar-nav {
            flex: 1;
            padding: 1rem 0;
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.8rem 1.35rem;
            margin: 0 0.6rem;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.925rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .sidebar-nav a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            transform: translateX(3px);
        }

        .sidebar-nav a.active {
            color: #ffffff;
            background: rgba(201, 169, 110, 0.18);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-accent);
        }

        .sidebar-nav a.active i {
            color: var(--color-accent-light);
        }

        .sidebar-footer-info {
            padding: 1rem 1.35rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer-info p {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
            line-height: 1.5;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-area {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-smooth);
        }

        /* ========== MOBILE TOP BAR ========== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 999;
            background: var(--color-brand);
            padding: 0.75rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.15);
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .mobile-topbar .mobile-logo .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-deep));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .mobile-topbar .mobile-logo span {
            font-family: 'Playfair Display', 'Noto Serif SC', serif;
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
        }

        .hamburger-btn {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 0.4rem;
            line-height: 1;
            border-radius: 6px;
            transition: background var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .hamburger-btn:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========== SIDEBAR OVERLAY ========== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-smooth);
            pointer-events: none;
        }

        .sidebar-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== SECTION STYLES ========== */
        .section-padding {
            padding: 3.5rem 2.5rem;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent-deep);
            margin-bottom: 0.5rem;
        }

        .section-header h2 {
            font-family: 'Playfair Display', 'Noto Serif SC', serif;
            font-size: 2rem;
            font-weight: 600;
            color: var(--color-text);
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-soft);
            margin-top: 0.5rem;
            max-width: 600px;
        }

        /* ========== CARD BASE ========== */
        .card-base {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
        }

        .card-base:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        /* ========== MEMBER TIER CARDS ========== */
        .tier-card {
            position: relative;
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 2rem 1.5rem;
            text-align: center;
            border: 2px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .tier-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
        }

        .tier-card.tier-bronze::before {
            background: linear-gradient(90deg, #cd7f32, #d4a574);
        }
        .tier-card.tier-silver::before {
            background: linear-gradient(90deg, #b0b0b0, #d0d0d0);
        }
        .tier-card.tier-gold::before {
            background: linear-gradient(90deg, #c9a96e, #e0c878);
        }
        .tier-card.tier-diamond::before {
            background: linear-gradient(90deg, #a8d8ea, #c5e8f7);
        }

        .tier-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }
        .tier-card.tier-gold:hover {
            box-shadow: var(--shadow-gold-hover);
            border-color: rgba(201, 169, 110, 0.4);
        }
        .tier-card.tier-diamond:hover {
            box-shadow: 0 4px 28px rgba(168, 216, 234, 0.35);
            border-color: rgba(168, 216, 234, 0.5);
        }

        .tier-card .tier-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }
        .tier-bronze .tier-icon {
            background: #fdf5ec;
            color: #cd7f32;
        }
        .tier-silver .tier-icon {
            background: #f5f5f5;
            color: #7a7a7a;
        }
        .tier-gold .tier-icon {
            background: #fef9ee;
            color: #c9a96e;
        }
        .tier-diamond .tier-icon {
            background: #f0f9fc;
            color: #6bb5cc;
        }

        .tier-card h3 {
            font-family: 'Playfair Display', 'Noto Serif SC', serif;
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--color-text);
        }

        .tier-card .tier-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            margin-bottom: 0.75rem;
        }
        .tier-bronze .tier-badge {
            background: #fdf5ec;
            color: #8b5e34;
        }
        .tier-silver .tier-badge {
            background: #f0f0f0;
            color: #5a5a5a;
        }
        .tier-gold .tier-badge {
            background: #fef9ee;
            color: #8b6914;
        }
        .tier-diamond .tier-badge {
            background: #e8f6fb;
            color: #3d7a8c;
        }

        .tier-card .tier-points {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0.5rem 0;
        }

        .tier-card .tier-points span {
            font-size: 0.85rem;
            font-weight: 400;
            color: var(--color-text-muted);
        }

        .tier-card ul {
            list-style: none;
            text-align: left;
            padding: 0;
            margin-top: 1rem;
        }
        .tier-card ul li {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            padding: 0.35rem 0;
            padding-left: 1.3rem;
            position: relative;
            line-height: 1.5;
        }
        .tier-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.75rem;
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-item {
            border-bottom: 1px solid var(--color-border-light);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 1.2rem 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            transition: color var(--transition-fast);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-accent-deep);
        }
        .faq-question:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }
        .faq-answer p {
            color: var(--color-text-soft);
            font-size: 0.925rem;
            line-height: 1.7;
        }

        /* ========== CTA BUTTONS ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-deep));
            color: #fff;
            font-weight: 600;
            font-size: 0.925rem;
            padding: 0.75rem 1.75rem;
            border-radius: 3rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(201, 169, 110, 0.3);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: 0 4px 20px rgba(201, 169, 110, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:focus {
            outline: 2px solid var(--color-accent-deep);
            outline-offset: 3px;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 6px rgba(201, 169, 110, 0.25);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--color-text);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.7rem 1.6rem;
            border-radius: 3rem;
            border: 2px solid var(--color-border);
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-deep);
            background: rgba(201, 169, 110, 0.04);
        }
        .btn-outline:focus {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-brand);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 2.5rem 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-col h4 {
            color: #ffffff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 0.9rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-disclaimer {
            max-width: 1200px;
            margin: 2rem auto 0;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
            text-align: center;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-area {
                margin-left: 0 !important;
            }
            .section-padding {
                padding: 2rem 1rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .section-header p {
                font-size: 0.9rem;
                max-width: 100%;
            }
        }

        @media (max-width: 639px) {
            .section-padding {
                padding: 1.5rem 0.9rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .footer {
                padding: 2rem 1rem 1rem;
            }
            .tier-card {
                padding: 1.5rem 1rem;
            }
            .tier-card .tier-points {
                font-size: 1.5rem;
            }
            .btn-primary,
            .btn-outline {
                font-size: 0.85rem;
                padding: 0.65rem 1.3rem;
            }
        }

        @media (min-width: 1024px) {
            .sidebar-overlay {
                display: none !important;
            }
            .sidebar {
                transform: translateX(0) !important;
            }
        }

        /* ========== HERO BANNER ========== */
        .hero-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
            overflow: hidden;
            margin: 0 1.5rem;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 36, 0.82) 0%, rgba(26, 26, 36, 0.5) 50%, rgba(26, 26, 36, 0.7) 100%);
            z-index: 1;
        }
        .hero-banner-content {
            position: relative;
            z-index: 2;
            padding: 3rem 2.5rem;
            max-width: 700px;
        }
        .hero-banner-content .hero-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--color-accent-light);
            background: rgba(201, 169, 110, 0.15);
            padding: 0.3rem 1rem;
            border-radius: 20px;
            margin-bottom: 1rem;
        }
        .hero-banner-content h1 {
            font-family: 'Playfair Display', 'Noto Serif SC', serif;
            font-size: 2.5rem;
            font-weight: 700;
            color: #ffffff;
            line-height: 1.25;
            letter-spacing: 0.02em;
        }
        .hero-banner-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0.75rem;
            line-height: 1.6;
            max-width: 500px;
        }

        @media (max-width: 1023px) {
            .hero-banner {
                margin: 0;
                border-radius: 0;
                min-height: 300px;
            }
            .hero-banner-content {
                padding: 2rem 1.2rem;
            }
            .hero-banner-content h1 {
                font-size: 1.8rem;
            }
            .hero-banner-content p {
                font-size: 0.9rem;
            }
        }

        /* ========== STAT BLOCK ========== */
        .stat-block {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1rem;
            background: rgba(201, 169, 110, 0.06);
            border-radius: var(--radius-lg);
        }
        .stat-block .stat-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent-deep);
            line-height: 1;
        }
        .stat-block .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.3;
        }

        /* ========== IMAGE CARD ========== */
        .img-card {
            border-radius: var(--radius-xl);
            overflow: hidden;
            position: relative;
            aspect-ratio: 4/3;
        }
        .img-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .img-card:hover img {
            transform: scale(1.05);
        }
        .img-card .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 60%);
            display: flex;
            align-items: flex-end;
            padding: 1.2rem;
        }
        .img-card .img-overlay span {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1a1d;
            --color-primary-light: #2c2c32;
            --color-accent: #c8a87c;
            --color-accent-hover: #b8945e;
            --color-accent-light: #f0e6d8;
            --color-bg: #fafaf8;
            --color-bg-white: #ffffff;
            --color-bg-warm: #f7f4ef;
            --color-text: #1a1a1d;
            --color-text-strong: #0d0d0f;
            --color-text-soft: #6b6b72;
            --color-text-light: #9a9aa0;
            --color-border: #e8e6e1;
            --color-border-light: #f0efeb;
            --color-shadow-sm: 0 1px 3px rgba(26, 26, 29, 0.06);
            --color-shadow-md: 0 4px 16px rgba(26, 26, 29, 0.09);
            --color-shadow-lg: 0 12px 40px rgba(26, 26, 29, 0.14);
            --color-shadow-xl: 0 20px 60px rgba(26, 26, 29, 0.18);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --sidebar-width: 260px;
            --sidebar-bg: #141417;
            --sidebar-text: #c4c4ca;
            --sidebar-text-active: #fafaf8;
            --sidebar-accent: #c8a87c;
            --sidebar-hover-bg: rgba(200, 168, 124, 0.08);
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-display: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul {
            list-style: none;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 32px 20px 24px;
            transition: transform var(--transition-smooth);
            overflow-y: auto;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-logo {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--sidebar-text-active);
            margin-bottom: 40px;
            padding: 0 8px;
            white-space: nowrap;
        }
        .sidebar-logo span {
            color: var(--sidebar-accent);
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            color: var(--sidebar-text);
            font-size: 0.92rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            transition: color var(--transition-fast);
        }
        .sidebar-nav a:hover {
            background: var(--sidebar-hover-bg);
            color: #e0e0e6;
        }
        .sidebar-nav a.active {
            background: rgba(200, 168, 124, 0.13);
            color: var(--sidebar-accent);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--sidebar-accent);
        }
        .sidebar-nav a.active i {
            color: var(--sidebar-accent);
        }

        .sidebar-footer-tag {
            margin-top: auto;
            padding: 16px 10px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.75rem;
            color: rgba(200, 200, 210, 0.45);
            letter-spacing: 0.03em;
            text-align: center;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--sidebar-bg);
            padding: 14px 18px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mobile-header-logo {
            font-family: var(--font-display);
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            color: var(--sidebar-text-active);
        }
        .mobile-header-logo span {
            color: var(--sidebar-accent);
        }
        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--sidebar-text-active);
            font-size: 1.3rem;
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .mobile-menu-btn:active {
            background: rgba(255, 255, 255, 0.14);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }
        .sidebar-overlay.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-smooth);
        }

        main {
            flex: 1;
        }

        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .container-wide {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section {
            padding: 64px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-lg {
            padding: 80px 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-text-strong);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-block {
            position: relative;
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            min-height: 360px;
            display: flex;
            align-items: center;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            overflow: hidden;
            margin-bottom: 0;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 20, 23, 0.55) 0%, rgba(20, 20, 23, 0.78) 100%);
            z-index: 1;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 40px;
            max-width: 700px;
        }
        .banner-content h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.65;
        }
        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }
        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .banner-breadcrumb a:hover {
            color: var(--color-accent);
        }
        .banner-breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .brand-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
            box-shadow: var(--color-shadow-sm);
        }
        .brand-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--color-shadow-lg);
            border-color: var(--color-border);
        }
        .brand-card-image {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
            transition: transform var(--transition-smooth);
        }
        .brand-card:hover .brand-card-image {
            transform: scale(1.04);
        }
        .brand-card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .brand-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            background: var(--color-accent-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            width: fit-content;
        }
        .brand-card h3 {
            font-family: var(--font-display);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .brand-card p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 14px;
        }
        .brand-card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast), color var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .brand-card-link:hover {
            gap: 10px;
            color: var(--color-accent-hover);
        }
        .brand-card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }
        .brand-card-link:hover i {
            transform: translateX(3px);
        }

        .featured-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            display: flex;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-shadow-md);
            transition: all var(--transition-smooth);
        }
        .featured-card:hover {
            box-shadow: var(--color-shadow-lg);
        }
        .featured-card-image {
            width: 48%;
            flex-shrink: 0;
            object-fit: cover;
            min-height: 300px;
        }
        .featured-card-body {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card-body .brand-card-tag {
            margin-bottom: 10px;
        }
        .featured-card-body h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }
        .featured-card-body p {
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            margin-bottom: 16px;
        }
        .featured-card-body .highlight-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .highlight-list span {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-text-soft);
            background: var(--color-bg-warm);
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #ffffff;
            border: 2px solid var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            box-shadow: 0 6px 22px rgba(200, 168, 124, 0.35);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 168, 124, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text-strong);
            border: 2px solid var(--color-border);
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: var(--color-accent-light);
        }
        .btn-outline:active {
            background: rgba(200, 168, 124, 0.12);
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-accent);
            border: 2px solid transparent;
            padding: 8px 18px;
        }
        .btn-ghost:hover {
            background: var(--color-accent-light);
            border-color: transparent;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1rem;
        }

        .stat-block {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--color-shadow-sm);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--color-shadow-md);
            border-color: var(--color-border);
        }
        .stat-number {
            font-family: var(--font-display);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
            line-height: 1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            letter-spacing: 0.04em;
            font-weight: 500;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .news-item {
            display: flex;
            align-items: baseline;
            gap: 16px;
            padding: 16px 20px;
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--color-shadow-md);
            background: var(--color-bg-warm);
        }
        .news-item-date {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-accent);
            white-space: nowrap;
            letter-spacing: 0.04em;
            min-width: 70px;
        }
        .news-item-title {
            font-weight: 600;
            color: var(--color-text-strong);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }
        .news-item-arrow {
            margin-left: auto;
            color: var(--color-text-light);
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .news-item:hover .news-item-arrow {
            color: var(--color-accent);
            transform: translateX(4px);
        }

        .cta-block {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 168, 124, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block h3 {
            font-family: var(--font-display);
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-block .btn {
            position: relative;
            z-index: 1;
        }

        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 32px 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto 32px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-disclaimer {
            max-width: 1100px;
            margin: 0 auto;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
            text-align: center;
            letter-spacing: 0.02em;
        }

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: var(--color-shadow-xl);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-block {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .featured-card {
                flex-direction: column;
            }
            .featured-card-image {
                width: 100%;
                min-height: 220px;
                aspect-ratio: 16/9;
            }
            .banner-content h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .container,
            .container-wide {
                padding: 0 20px;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 52px 0;
            }
            .cta-block {
                padding: 40px 28px;
            }
            .cta-block h3 {
                font-size: 1.5rem;
            }
            .banner-block {
                min-height: 280px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .banner-content {
                padding: 40px 24px;
            }
        }

        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-grid-2 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-block {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .banner-content h1 {
                font-size: 1.7rem;
            }
            .banner-content p {
                font-size: 0.9rem;
            }
            .banner-block {
                min-height: 240px;
                border-radius: 0;
            }
            .banner-content {
                padding: 28px 16px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .featured-card-body {
                padding: 20px 16px;
            }
            .featured-card-body h3 {
                font-size: 1.2rem;
            }
            .news-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 12px 14px;
            }
            .news-item-date {
                min-width: auto;
            }
            .cta-block {
                padding: 28px 16px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .footer {
                padding: 32px 16px 20px;
            }
            .container,
            .container-wide {
                padding: 0 14px;
            }
            .section {
                padding: 28px 0;
            }
            .section-lg {
                padding: 36px 0;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 380px) {
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .stat-block {
                grid-template-columns: 1fr;
            }
            .banner-content h1 {
                font-size: 1.4rem;
            }
            .sidebar {
                width: 85vw;
            }
        }