/* roulang page: index */
:root {
            --color-primary: #1a1a26;
            --color-primary-light: #2a2a3d;
            --color-accent: #c49b6c;
            --color-accent-light: #d9b88c;
            --color-accent-deep: #a07848;
            --color-gold: #d4a853;
            --color-rose: #b8865e;
            --color-bg: #faf8f5;
            --color-bg-alt: #f3efe8;
            --color-bg-dark: #1a1a26;
            --color-bg-card: #ffffff;
            --color-text: #1c1c1c;
            --color-text-secondary: #5a5a6e;
            --color-text-light: #8a8a9a;
            --color-text-on-dark: #e8e6e0;
            --color-border: #e0dcd5;
            --color-border-light: #ede8df;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.14);
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 20px;
            --space-lg: 32px;
            --space-xl: 48px;
            --space-2xl: 64px;
            --space-3xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-smooth: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
            --font-serif: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', serif;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1260px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

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

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

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

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

        input,
        button {
            font-size: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 var(--space-lg);
            }
        }
        @media (min-width: 1200px) {
            .container {
                padding: 0 var(--space-xl);
            }
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            transition: all var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.97);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: var(--space-md);
        }
        .header-nav-group {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            flex-shrink: 0;
        }
        .header-nav-group.left-group {
            justify-content: flex-start;
            flex: 1;
        }
        .header-nav-group.right-group {
            justify-content: flex-end;
            flex: 1;
            gap: var(--space-sm);
        }
        .header-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 var(--space-sm);
        }
        .header-logo {
            font-family: var(--font-serif);
            font-size: 1.45rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
            line-height: 1.2;
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .header-logo .logo-accent {
            color: var(--color-accent);
            font-weight: 400;
        }
        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background: rgba(196, 155, 108, 0.06);
        }
        .nav-link.active {
            color: var(--color-accent-deep);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 1px;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: var(--color-accent);
            color: #fff;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(196, 155, 108, 0.25);
        }
        .header-cta:hover {
            background: var(--color-accent-deep);
            box-shadow: 0 4px 16px rgba(196, 155, 108, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }
        .header-cta:active {
            transform: scale(0.97);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: var(--space-2xl);
            gap: var(--space-md);
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel .nav-link {
            font-size: 1.15rem;
            padding: 12px 24px;
        }
        .mobile-nav-panel .header-cta {
            margin-top: var(--space-md);
            font-size: 1rem;
            padding: 12px 28px;
        }

        @media (max-width: 1023px) {
            .header-nav-group {
                display: none;
            }
            .header-logo-wrap {
                flex: 1;
                text-align: center;
                padding: 0;
            }
            .header-inner {
                justify-content: space-between;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-nav-group.right-group {
                display: none;
            }
        }
        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
            .mobile-nav-panel {
                display: none !important;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--color-bg-dark);
            overflow: hidden;
            isolation: isolate;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.55;
            filter: brightness(0.7) saturate(0.9);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(180deg,
                    rgba(26, 26, 38, 0.65) 0%,
                    rgba(26, 26, 38, 0.45) 40%,
                    rgba(26, 26, 38, 0.75) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: var(--space-3xl) 0;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            background: rgba(212, 168, 83, 0.2);
            color: var(--color-gold);
            border: 1px solid rgba(212, 168, 83, 0.35);
            margin-bottom: var(--space-md);
        }
        .hero-title {
            font-family: var(--font-serif);
            font-size: 3rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: 0.03em;
            margin-bottom: var(--space-md);
        }
        .hero-title .highlight {
            color: var(--color-gold);
        }
        .hero-subtitle {
            font-size: 1.12rem;
            color: var(--color-text-on-dark);
            line-height: 1.6;
            margin-bottom: var(--space-lg);
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(196, 155, 108, 0.35);
        }
        .btn-primary:hover {
            background: var(--color-accent-deep);
            box-shadow: 0 6px 24px rgba(196, 155, 108, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 24px;
        }
        @media (max-width: 767px) {
            .hero-section {
                min-height: 520px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: var(--space-xs);
            }
            .btn {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-section {
                min-height: 460px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--space-3xl) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: var(--space-xs);
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            margin-bottom: var(--space-sm);
            line-height: 1.25;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-desc {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-dark .section-desc {
            color: var(--color-text-light);
        }
        @media (max-width: 767px) {
            .section {
                padding: var(--space-2xl) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

        /* ========== BRAND MATRIX ========== */
        .brand-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .brand-card {
            background: var(--color-bg-card);
            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);
            display: flex;
            flex-direction: column;
        }
        .brand-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
            border-color: var(--color-accent-light);
        }
        .brand-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .brand-card:hover .brand-card-img {
            transform: scale(1.04);
        }
        .brand-card-body {
            padding: var(--space-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
        }
        .brand-card-name {
            font-family: var(--font-serif);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }
        .brand-card-tag {
            font-size: 0.78rem;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .brand-card-desc {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        @media (max-width: 1023px) {
            .brand-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .brand-grid {
                grid-template-columns: 1fr;
            }
            .brand-card-img {
                height: 240px;
            }
        }

        /* ========== DATA DASHBOARD ========== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--space-md);
        }
        .data-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 0 0 3px 3px;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .data-card:hover::before {
            opacity: 1;
        }
        .data-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .data-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: var(--space-sm);
        }
        .data-number {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }
        .data-label {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: var(--space-xs);
        }
        .data-trend {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 30px;
            margin-top: var(--space-xs);
        }
        .data-trend.up {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .data-trend.stable {
            background: #fff8e1;
            color: #f57f17;
        }
        @media (max-width: 1023px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-sm);
            }
            .data-number {
                font-size: 1.8rem;
            }
        }

        /* ========== SERVICE ENTRY ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }
        .service-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-xl) var(--space-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--color-accent);
        }
        .service-card-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(196, 155, 108, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-md);
            font-size: 1.4rem;
            color: var(--color-accent);
            transition: all var(--transition-base);
        }
        .service-card:hover .service-card-icon {
            background: var(--color-accent);
            color: #fff;
        }
        .service-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--space-xs);
        }
        .service-card-desc {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        @media (max-width: 767px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== NEWS / CONTENT LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--space-md);
        }
        .news-item {
            display: flex;
            gap: var(--space-md);
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--color-accent-light);
        }
        .news-item-img {
            width: 180px;
            min-height: 140px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-item-body {
            padding: var(--space-md);
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: var(--space-xs);
        }
        .news-item-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }
        .news-item-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .news-item-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
        }
        @media (max-width: 767px) {
            .news-list {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item-img {
                width: 100%;
                height: 200px;
            }
        }

        /* ========== CREATIVE HERITAGE ========== */
        .heritage-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-xl);
            align-items: center;
        }
        .heritage-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .heritage-img-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .heritage-img-wrap:hover img {
            transform: scale(1.03);
        }
        .heritage-text h3 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--space-md);
            line-height: 1.3;
        }
        .heritage-text p {
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: var(--space-md);
        }
        .heritage-tags {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-xs);
        }
        .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-bg-alt);
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
        }
        @media (max-width: 767px) {
            .heritage-block {
                grid-template-columns: 1fr;
            }
            .heritage-img-wrap img {
                height: 280px;
            }
        }

        /* ========== MOBILE EXPERIENCE ========== */
        .mobile-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-xl);
            align-items: center;
        }
        .mobile-block.reverse {
            direction: rtl;
        }
        .mobile-block.reverse>* {
            direction: ltr;
        }
        .mobile-text h3 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--space-md);
            line-height: 1.3;
        }
        .mobile-text p {
            color: var(--color-text-on-dark);
            line-height: 1.8;
            margin-bottom: var(--space-md);
        }
        .mobile-img-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }
        .mobile-img-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        @media (max-width: 767px) {
            .mobile-block {
                grid-template-columns: 1fr;
            }
            .mobile-img-wrap img {
                height: 260px;
            }
        }

        /* ========== SUSTAINABILITY ========== */
        .sustain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-md);
        }
        .sustain-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .sustain-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .sustain-card-icon {
            font-size: 2.2rem;
            color: var(--color-accent);
            margin-bottom: var(--space-sm);
        }
        .sustain-card h4 {
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--space-xs);
            font-size: 1rem;
        }
        .sustain-card p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        @media (max-width: 767px) {
            .sustain-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--color-accent-light);
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-md) var(--space-lg);
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: var(--space-md);
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-base);
            color: var(--color-text-secondary);
        }
        .faq-item.active .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 var(--space-lg);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 var(--space-lg) var(--space-md);
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 520px) {
            .faq-question {
                padding: var(--space-sm) var(--space-md);
                font-size: 0.9rem;
            }
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #252540 100%);
            padding: var(--space-3xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(196, 155, 108, 0.08);
            top: -100px;
            right: -100px;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(196, 155, 108, 0.05);
            bottom: -80px;
            left: -80px;
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-family: var(--font-serif);
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--space-md);
            letter-spacing: 0.03em;
        }
        .cta-desc {
            color: var(--color-text-on-dark);
            font-size: 1rem;
            max-width: 500px;
            margin: 0 auto var(--space-lg);
            line-height: 1.6;
        }
        .cta-actions {
            display: flex;
            gap: var(--space-sm);
            justify-content: center;
            flex-wrap: wrap;
        }
        @media (max-width: 767px) {
            .cta-title {
                font-size: 1.6rem;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-on-dark);
            padding: var(--space-2xl) 0 var(--space-lg);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-xl);
            margin-bottom: var(--space-xl);
        }
        .footer-brand .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--space-sm);
            letter-spacing: 0.03em;
        }
        .footer-brand p {
            color: var(--color-text-light);
            line-height: 1.6;
            font-size: 0.85rem;
        }
        .footer-col h4 {
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--space-sm);
            font-size: 0.92rem;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-col a {
            color: var(--color-text-light);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: var(--space-md);
            text-align: center;
            font-size: 0.8rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--space-lg);
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
 --color-primary: #1a1a2e;
 --color-accent: #C9A96E;
 --color-accent-soft: #E2D5C1;
 --color-bg: #F9F7F4;
 --color-surface: #FFFFFF;
 --color-text: #2B2B2B;
 --color-text-soft: #6B6B6B;
 --color-text-light: #8C8C8C;
 --color-border: #E6E2DB;
 --color-border-light: #F0EDE6;
 --color-shadow: rgba(26, 26, 46, 0.06);
 --color-shadow-strong: rgba(26, 26, 46, 0.12);
 --color-overlay: rgba(20, 20, 35, 0.55);
 --radius-sm: 6px;
 --radius-md: 12px;
 --radius-lg: 20px;
 --radius-xl: 28px;
 --shadow-card: 0 4px 20px var(--color-shadow);
 --shadow-card-hover: 0 12px 32px var(--color-shadow-strong);
 --shadow-nav: 0 2px 20px rgba(0,0,0,0.04);
 --transition-base: 0.25s cubic-bezier(0.33, 1, 0.68, 1);
 --font-serif: "Noto Serif SC", "Times New Roman", "Songti SC", serif;
 --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", 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; }
 body{
 font-family:var(--font-sans);
 background-color:var(--color-bg);
 color:var(--color-text);
 line-height:1.6;
 font-size:16px;
 min-height:100vh;
 }
 img{ display:block; max-width:100%; height:auto; }
 a{ text-decoration:none; color:inherit; transition:color var(--transition-base); }
 ul{ list-style:none; }
 .container{
 width:100%;
 max-width:1280px;
 margin-left:auto;
 margin-right:auto;
 padding-left:24px;
 padding-right:24px;
 }
 @media (max-width:768px){
 .container{ padding-left:16px; padding-right:16px; }
 }
 .site-header{
 position:sticky;
 top:0;
 z-index:1000;
 background:rgba(255,255,255,0.92);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 box-shadow:var(--shadow-nav);
 border-bottom:1px solid var(--color-border-light);
 }
 .header-inner{
 display:flex;
 align-items:center;
 justify-content:center;
 height:72px;
 position:relative;
 }
 .header-nav-group{
 display:flex;
 align-items:center;
 gap:28px;
 }
 .left-group{ margin-right:auto; }
 .right-group{ margin-left:auto; gap:20px; }
 .header-logo-wrap{
 flex-shrink:0;
 margin-left:32px;
 margin-right:32px;
 }
 .header-logo{
 font-family:var(--font-serif);
 font-size:1.8rem;
 font-weight:700;
 letter-spacing:0.08em;
 color:var(--color-primary);
 white-space:nowrap;
 }
 .logo-accent{
 color:var(--color-accent);
 font-style:italic;
 }
 .nav-link{
 font-size:0.95rem;
 font-weight:500;
 color:var(--color-text);
 padding:6px 4px;
 border-bottom:2px solid transparent;
 transition:color var(--transition-base), border-color var(--transition-base);
 white-space:nowrap;
 letter-spacing:0.02em;
 }
 .nav-link:hover{ color:var(--color-accent); }
 .nav-link.active{
 color:var(--color-accent);
 border-bottom-color:var(--color-accent);
 }
 .header-cta{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 background:var(--color-primary);
 color:#fff;
 font-size:0.9rem;
 font-weight:600;
 padding:10px 22px;
 border-radius:30px;
 letter-spacing:0.04em;
 transition:background var(--transition-base), box-shadow var(--transition-base);
 white-space:nowrap;
 }
 .header-cta:hover{
 background:#2d2d4a;
 box-shadow:0 6px 18px rgba(26,26,46,0.2);
 }
 .mobile-toggle{
 display:none;
 flex-direction:column;
 justify-content:center;
 align-items:center;
 width:36px;
 height:36px;
 background:none;
 border:none;
 cursor:pointer;
 gap:6px;
 padding:6px;
 z-index:1001;
 }
 .mobile-toggle span{
 display:block;
 width:24px;
 height:2px;
 background:var(--color-primary);
 border-radius:2px;
 transition:transform var(--transition-base), opacity var(--transition-base);
 }
 .mobile-nav-panel{
 display:none;
 position:absolute;
 top:72px;
 left:0;
 right:0;
 background:rgba(255,255,255,0.98);
 backdrop-filter:blur(20px);
 -webkit-backdrop-filter:blur(20px);
 padding:16px 24px;
 flex-direction:column;
 gap:8px;
 border-bottom:1px solid var(--color-border);
 box-shadow:0 12px 28px rgba(0,0,0,0.08);
 z-index:999;
 }
 .mobile-nav-panel .nav-link,
 .mobile-nav-panel .header-cta{
 display:block;
 padding:12px 8px;
 font-size:1rem;
 text-align:center;
 border-radius:var(--radius-sm);
 }
 .mobile-nav-panel .header-cta{
 margin-top:8px;
 }
 @media (max-width:1024px){
 .header-nav-group{ display:none; }
 .header-logo-wrap{ margin:0 auto; }
 .mobile-toggle{ display:flex; position:absolute; right:24px; }
 .mobile-nav-panel.show{ display:flex; }
 }
 @media (max-width:520px){
 .header-logo{ font-size:1.5rem; }
 .header-inner{ height:64px; }
 .mobile-nav-panel{ top:64px; }
 }
 main{ min-height:60vh; }
 .page-banner{
 position:relative;
 padding:80px 0 90px;
 text-align:center;
 background:var(--color-primary);
 color:#fff;
 overflow:hidden;
 }
 .page-banner::before{
 content:"";
 position:absolute;
 inset:0;
 background-image:url('assets/images/backpic/back-2.webp');
 background-size:cover;
 background-position:center 35%;
 opacity:0.28;
 }
 .banner-content{
 position:relative;
 z-index:2;
 }
 .banner-eyebrow{
 font-size:0.9rem;
 letter-spacing:0.16em;
 text-transform:uppercase;
 color:var(--color-accent-soft);
 margin-bottom:12px;
 font-weight:500;
 }
 .banner-title{
 font-family:var(--font-serif);
 font-size:3.2rem;
 font-weight:700;
 letter-spacing:0.06em;
 margin-bottom:16px;
 line-height:1.25;
 }
 .banner-desc{
 font-size:1.15rem;
 color:rgba(255,255,255,0.8);
 max-width:620px;
 margin:0 auto 28px;
 line-height:1.7;
 }
 .banner-meta{
 display:inline-flex;
 align-items:center;
 gap:20px;
 font-size:0.9rem;
 color:rgba(255,255,255,0.7);
 }
 .banner-meta span{
 display:flex;
 align-items:center;
 gap:6px;
 }
 @media (max-width:768px){
 .page-banner{ padding:50px 0 60px; }
 .banner-title{ font-size:2.2rem; }
 .banner-desc{ font-size:1rem; max-width:90%; }
 }
 .section{ padding:72px 0; }
 .section-accent{ background:var(--color-surface); }
 .section-header{
 text-align:center;
 margin-bottom:48px;
 }
 .section-label{
 display:inline-block;
 font-size:0.8rem;
 font-weight:600;
 letter-spacing:0.14em;
 color:var(--color-accent);
 background:var(--color-accent-soft);
 padding:6px 16px;
 border-radius:20px;
 margin-bottom:12px;
 }
 .section-title{
 font-family:var(--font-serif);
 font-size:2.4rem;
 font-weight:700;
 color:var(--color-primary);
 letter-spacing:0.04em;
 margin-bottom:8px;
 }
 .section-sub{
 color:var(--color-text-soft);
 font-size:1.05rem;
 max-width:600px;
 margin:0 auto;
 }
 .grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:28px; align-items:center; }
 .grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
 @media (max-width:768px){
 .grid-2{ grid-template-columns:1fr; }
 .grid-3{ grid-template-columns:1fr; gap:20px; }
 .section{ padding:48px 0; }
 .section-title{ font-size:1.9rem; }
 }
 .card{
 background:var(--color-surface);
 border-radius:var(--radius-lg);
 overflow:hidden;
 box-shadow:var(--shadow-card);
 transition:box-shadow var(--transition-base), transform var(--transition-base);
 border:1px solid var(--color-border-light);
 display:flex;
 flex-direction:column;
 }
 .card:hover{
 box-shadow:var(--shadow-card-hover);
 transform:translateY(-4px);
 }
 .card-img-wrap{
 position:relative;
 overflow:hidden;
 aspect-ratio:4/3;
 background:var(--color-bg);
 }
 .card-img-wrap img{
 width:100%;
 height:100%;
 object-fit:cover;
 transition:transform 0.4s ease;
 }
 .card:hover .card-img-wrap img{ transform:scale(1.04); }
 .card-tag{
 position:absolute;
 top:14px;
 left:14px;
 background:rgba(26,26,46,0.8);
 backdrop-filter:blur(8px);
 color:#fff;
 font-size:0.75rem;
 font-weight:600;
 padding:5px 12px;
 border-radius:20px;
 letter-spacing:0.06em;
 }
 .card-body{ padding:22px 20px 20px; flex:1; display:flex; flex-direction:column; }
 .card-title{
 font-family:var(--font-serif);
 font-size:1.25rem;
 font-weight:700;
 color:var(--color-primary);
 margin-bottom:8px;
 line-height:1.4;
 }
 .card-text{
 color:var(--color-text-soft);
 font-size:0.95rem;
 line-height:1.65;
 margin-bottom:16px;
 flex:1;
 }
 .card-link{
 font-weight:600;
 font-size:0.9rem;
 color:var(--color-accent);
 letter-spacing:0.04em;
 display:inline-flex;
 align-items:center;
 gap:6px;
 align-self:flex-start;
 transition:gap var(--transition-base);
 }
 .card-link:hover{ gap:12px; }
 .insight-row{
 display:flex;
 align-items:center;
 gap:24px;
 padding:20px 0;
 border-bottom:1px solid var(--color-border-light);
 }
 .insight-row:last-child{ border-bottom:none; }
 .insight-thumb{
 flex-shrink:0;
 width:120px;
 height:90px;
 border-radius:var(--radius-md);
 overflow:hidden;
 }
 .insight-thumb img{
 width:100%;
 height:100%;
 object-fit:cover;
 }
 .insight-info{ flex:1; }
 .insight-title{
 font-weight:700;
 font-size:1.05rem;
 color:var(--color-primary);
 margin-bottom:4px;
 }
 .insight-excerpt{
 font-size:0.9rem;
 color:var(--color-text-soft);
 line-height:1.5;
 }
 @media (max-width:520px){
 .insight-row{ flex-direction:column; align-items:flex-start; gap:14px; }
 .insight-thumb{ width:100%; height:160px; }
 }
 .data-strip{
 display:grid;
 grid-template-columns:repeat(4,1fr);
 gap:20px;
 text-align:center;
 }
 .data-item{
 background:var(--color-surface);
 border-radius:var(--radius-lg);
 padding:28px 16px;
 box-shadow:var(--shadow-card);
 border:1px solid var(--color-border-light);
 }
 .data-value{
 font-family:var(--font-serif);
 font-size:2.4rem;
 font-weight:700;
 color:var(--color-accent);
 line-height:1.2;
 }
 .data-label{
 font-size:0.9rem;
 color:var(--color-text-soft);
 margin-top:6px;
 }
 @media (max-width:768px){
 .data-strip{ grid-template-columns:1fr 1fr; }
 }
 @media (max-width:520px){
 .data-strip{ grid-template-columns:1fr; }
 }
 .faq-list{
 max-width:780px;
 margin:0 auto;
 display:flex;
 flex-direction:column;
 gap:12px;
 }
 .faq-item{
 background:var(--color-surface);
 border-radius:var(--radius-md);
 border:1px solid var(--color-border);
 overflow:hidden;
 transition:border-color var(--transition-base);
 }
 .faq-q{
 width:100%;
 background:none;
 border:none;
 text-align:left;
 padding:18px 22px;
 font-weight:700;
 font-size:1rem;
 color:var(--color-primary);
 cursor:pointer;
 display:flex;
 justify-content:space-between;
 align-items:center;
 gap:12px;
 font-family:var(--font-sans);
 }
 .faq-icon{ font-size:1.3rem; color:var(--color-accent); transition:transform var(--transition-base); }
 .faq-a{
 max-height:0;
 overflow:hidden;
 transition:max-height 0.35s ease, padding 0.35s ease;
 padding:0 22px;
 color:var(--color-text-soft);
 font-size:0.95rem;
 line-height:1.7;
 }
 .faq-item.open .faq-a{
 max-height:300px;
 padding:0 22px 18px;
 }
 .faq-item.open .faq-icon{ transform:rotate(45deg); }
 .cta-block{
 background:var(--color-primary);
 border-radius:var(--radius-xl);
 padding:56px 40px;
 text-align:center;
 color:#fff;
 position:relative;
 overflow:hidden;
 }
 .cta-block::after{
 content:"";
 position:absolute;
 top:-40px;
 right:-40px;
 width:180px;
 height:180px;
 background:var(--color-accent);
 border-radius:50%;
 opacity:0.18;
 }
 .cta-title{
 font-family:var(--font-serif);
 font-size:2.2rem;
 font-weight:700;
 margin-bottom:12px;
 position:relative;
 z-index:1;
 }
 .cta-text{
 font-size:1.1rem;
 color:rgba(255,255,255,0.8);
 margin-bottom:28px;
 position:relative;
 z-index:1;
 }
 .btn-cta{
 display:inline-flex;
 align-items:center;
 gap:8px;
 background:var(--color-accent);
 color:#fff;
 font-weight:700;
 font-size:1rem;
 padding:14px 36px;
 border-radius:40px;
 letter-spacing:0.05em;
 transition:background var(--transition-base), box-shadow var(--transition-base);
 position:relative;
 z-index:1;
 }
 .btn-cta:hover{
 background:#b8934c;
 box-shadow:0 10px 24px rgba(201,169,110,0.35);
 }
 .site-footer{
 background:#1E1E2C;
 color:rgba(255,255,255,0.75);
 padding:56px 0 28px;
 margin-top:40px;
 }
 .footer-grid{
 display:grid;
 grid-template-columns:1.6fr 1fr 1fr 1fr;
 gap:32px;
 margin-bottom:36px;
 }
 .footer-logo{
 font-family:var(--font-serif);
 font-size:1.8rem;
 font-weight:700;
 color:#fff;
 letter-spacing:0.06em;
 margin-bottom:12px;
 }
 .footer-brand p{
 font-size:0.9rem;
 line-height:1.7;
 }
 .footer-col h4{
 font-size:0.95rem;
 font-weight:700;
 color:#fff;
 margin-bottom:14px;
 letter-spacing:0.04em;
 }
 .footer-col ul li{ margin-bottom:8px; }
 .footer-col ul li a{
 font-size:0.9rem;
 color:rgba(255,255,255,0.65);
 transition:color var(--transition-base);
 }
 .footer-col ul li a:hover{ color:var(--color-accent); }
 .footer-bottom{
 border-top:1px solid rgba(255,255,255,0.1);
 padding-top:22px;
 text-align:center;
 font-size:0.8rem;
 color:rgba(255,255,255,0.45);
 }
 @media (max-width:768px){
 .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
 }
 @media (max-width:520px){
 .footer-grid{ grid-template-columns:1fr; }
 }

/* roulang page: category4 */
:root {
            --color-primary: #1a1a2e;
            --color-accent: #c9a96e;
            --color-accent-deep: #a6844b;
            --color-accent-light: #f0e6d3;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-surface-alt: #f5f2ed;
            --color-text: #1a1a2e;
            --color-text-soft: #5c5c6e;
            --color-text-muted: #8a8a96;
            --color-border: #e8e4dc;
            --color-border-light: #f0ede7;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
            --shadow-lg: 0 8px 30px rgba(26, 26, 46, 0.12);
            --shadow-xl: 0 16px 48px rgba(26, 26, 46, 0.15);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Georgia', 'Noto Serif SC', 'STSong', serif;
            --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1280px;
            --header-height: 72px;
            --section-gap: 80px;
            --card-gap: 24px;
        }

        *,
        *::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: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .header-nav-group {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .left-group {
            flex: 1;
            justify-content: flex-end;
        }

        .right-group {
            flex: 1;
            justify-content: flex-start;
        }

        .header-logo-wrap {
            flex-shrink: 0;
            padding: 0 36px;
            text-align: center;
        }

        .header-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .header-logo:hover {
            color: var(--color-accent-deep);
        }

        .logo-accent {
            color: var(--color-accent);
            font-weight: 400;
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--color-text-soft);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }

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

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

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

        .nav-link.active::after {
            width: 100%;
            background: var(--color-accent-deep);
            height: 2px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            background: var(--color-accent);
            border-radius: 50px;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.25);
        }

        .header-cta:hover {
            background: var(--color-accent-deep);
            box-shadow: 0 4px 16px rgba(166, 132, 75, 0.35);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            z-index: 999;
            padding: 40px;
        }

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

        .mobile-nav-panel .nav-link {
            font-size: 1.15rem;
        }

        .mobile-nav-panel .header-cta {
            font-size: 1rem;
            padding: 12px 28px;
        }

        /* Page Banner */
        .page-banner {
            margin-top: var(--header-height);
            background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 40%, #1a1a2e 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 60px 0;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.7) 0%, rgba(26, 26, 46, 0.85) 100%);
            z-index: 1;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 0 20px;
        }

        .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            background: rgba(201, 169, 110, 0.15);
            border: 1px solid rgba(201, 169, 110, 0.3);
            border-radius: 50px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .banner-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            font-weight: 400;
        }

        /* Section共通 */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-accent-deep);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Lifestyle Intro 图文区 */
        .lifestyle-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .lifestyle-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .lifestyle-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            transition: transform var(--transition-smooth);
        }

        .lifestyle-intro-image:hover img {
            transform: scale(1.03);
        }

        .lifestyle-intro-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .lifestyle-intro-text p {
            color: var(--color-text-soft);
            line-height: 1.8;
            margin-bottom: 12px;
            font-size: 1rem;
        }

        .lifestyle-intro-text .highlight-stat {
            display: flex;
            gap: 32px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border);
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent-deep);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        /* 卡片网格 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gap);
        }

        .card-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gap);
        }

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

        .lifestyle-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);
            display: flex;
            flex-direction: column;
        }

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

        .lifestyle-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .lifestyle-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .lifestyle-card:hover .lifestyle-card-image img {
            transform: scale(1.06);
        }

        .lifestyle-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            background: rgba(26, 26, 46, 0.75);
            color: #fff;
            border-radius: 50px;
            backdrop-filter: blur(6px);
        }

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

        .lifestyle-card-body h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .lifestyle-card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            color: var(--color-accent-deep);
            transition: gap var(--transition-fast);
        }

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

        .card-link::after {
            content: '→';
            font-size: 1rem;
            transition: transform var(--transition-fast);
        }

        .card-link:hover::after {
            transform: translateX(3px);
        }

        /* 列表区块 */
        .lifestyle-list-block {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .lifestyle-list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

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

        .lifestyle-list-item:hover {
            background: var(--color-accent-light);
            margin: 0 -16px;
            padding-left: 16px;
            padding-right: 16px;
            border-radius: var(--radius-md);
            border-bottom-color: transparent;
        }

        .list-index {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-accent);
            min-width: 44px;
            text-align: center;
            flex-shrink: 0;
        }

        .list-content {
            flex: 1;
        }

        .list-content h5 {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

        .list-content p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        .list-badge {
            flex-shrink: 0;
            padding: 5px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            border-radius: 50px;
            background: var(--color-accent-light);
            color: var(--color-accent-deep);
            white-space: nowrap;
        }

        /* 数据看板 */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--color-surface-alt);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .data-card:hover {
            background: var(--color-surface);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .data-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            display: block;
        }

        .data-value {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .data-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(160deg, #1a1a2e 0%, #252540 50%, #1a1a2e 100%);
            color: #fff;
            text-align: center;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            font-size: 1rem;
            line-height: 1.6;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            background: var(--color-accent);
            border-radius: 50px;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 20px rgba(201, 169, 110, 0.3);
        }

        .cta-btn:hover {
            background: var(--color-accent-deep);
            box-shadow: 0 8px 30px rgba(166, 132, 75, 0.45);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #141420;
            color: #b0b0bb;
            padding: 56px 0 28px;
            font-size: 0.9rem;
            line-height: 1.7;
        }

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

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: #8a8a96;
            font-size: 0.85rem;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: #fff;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

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

        .footer-col ul li a {
            color: #8a8a96;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #6a6a76;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 28px;
            }
            .header-nav-group {
                gap: 18px;
            }
            .header-logo-wrap {
                padding: 0 20px;
            }
            .header-logo {
                font-size: 1.3rem;
            }
            .nav-link {
                font-size: 0.82rem;
            }
            .header-cta {
                font-size: 0.78rem;
                padding: 7px 16px;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .lifestyle-intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .banner-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            :root {
                --section-gap: 56px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .header-nav-group {
                display: none;
            }
            .header-logo-wrap {
                padding: 0;
            }
            .header-cta {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-inner {
                justify-content: space-between;
            }
            .card-grid,
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .card-grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .lifestyle-list-block {
                padding: 24px 20px;
            }
            .lifestyle-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px 0;
            }
            .banner-title {
                font-size: 1.6rem;
            }
            .banner-subtitle {
                font-size: 0.95rem;
            }
            .page-banner {
                min-height: 260px;
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .lifestyle-intro-text .highlight-stat {
                flex-wrap: wrap;
                gap: 16px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            :root {
                --section-gap: 44px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .header-logo {
                font-size: 1.15rem;
            }
            .banner-title {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .page-banner {
                min-height: 220px;
                padding: 32px 0;
            }
            .lifestyle-list-block {
                padding: 18px 14px;
            }
            .list-index {
                font-size: 1.1rem;
                min-width: 32px;
            }
            :root {
                --section-gap: 36px;
                --header-height: 60px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1c1c1e;
            --color-accent: #b8944f;
            --color-accent-light: #d4b978;
            --color-accent-pale: #f5efe0;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #2d2d2d;
            --color-text-muted: #6b6b6b;
            --color-text-light: #999999;
            --color-border: #e8e5df;
            --color-border-light: #f0ede7;
            --color-shadow-sm: rgba(0, 0, 0, 0.04);
            --color-shadow: rgba(0, 0, 0, 0.07);
            --color-shadow-lg: rgba(0, 0, 0, 0.12);
            --color-overlay: rgba(28, 28, 30, 0.65);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px var(--color-shadow-sm);
            --shadow-sm: 0 2px 8px var(--color-shadow);
            --shadow-md: 0 4px 20px var(--color-shadow);
            --shadow-lg: 0 8px 40px var(--color-shadow-lg);
            --shadow-card-hover: 0 12px 48px rgba(0, 0, 0, 0.13);
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --spacing-4xl: 5rem;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-serif: 'Georgia', 'Noto Serif SC', 'STSong', 'Songti SC', serif;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --nav-height: 76px;
        }

        *,
        *::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: var(--font-sans);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            font-size: 16px;
            min-width: 320px;
            overflow-x: hidden;
        }

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

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

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

        input,
        button {
            font-family: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: var(--spacing-xl);
            padding-right: var(--spacing-xl);
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: var(--spacing-xl);
            padding-right: var(--spacing-xl);
        }

        .header-nav-group {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .left-group {
            flex: 1;
            justify-content: flex-end;
            padding-right: var(--spacing-lg);
        }

        .right-group {
            flex: 1;
            justify-content: flex-start;
            padding-left: var(--spacing-lg);
        }

        .header-logo-wrap {
            flex-shrink: 0;
            text-align: center;
        }

        .header-logo {
            font-family: var(--font-serif);
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .header-logo:hover {
            color: var(--color-accent);
        }

        .logo-accent {
            color: var(--color-accent);
            font-weight: 400;
            letter-spacing: 0.06em;
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            padding: 0.5rem 0.85rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }

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

        .nav-link.active {
            color: var(--color-accent);
            font-weight: 600;
            background: transparent;
            pointer-events: none;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2.5px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .header-cta {
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--color-primary);
            padding: 0.55rem 1.35rem;
            border-radius: var(--radius-full);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.02em;
            margin-left: 4px;
        }

        .header-cta:hover {
            background: var(--color-accent);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            z-index: 1001;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: var(--spacing-3xl);
            gap: var(--spacing-md);
            z-index: 999;
            transform: translateY(-10px);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-smooth);
        }

        .mobile-nav-panel.active {
            display: flex;
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-nav-panel .nav-link {
            font-size: 1.1rem;
            padding: 0.75rem 1.5rem;
        }

        .mobile-nav-panel .header-cta {
            margin-top: var(--spacing-md);
            padding: 0.7rem 2rem;
            font-size: 1rem;
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            overflow: hidden;
            isolation: isolate;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(28, 28, 30, 0.55) 0%,
                    rgba(28, 28, 30, 0.45) 40%,
                    rgba(28, 28, 30, 0.6) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: var(--spacing-3xl) var(--spacing-xl);
            color: #ffffff;
        }

        .page-banner-badge {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-accent-light);
            border: 1px solid rgba(212, 185, 120, 0.5);
            padding: 0.35rem 1rem;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-lg);
            backdrop-filter: blur(4px);
            background: rgba(255, 255, 255, 0.06);
        }

        .page-banner-content h1 {
            font-family: var(--font-serif);
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            letter-spacing: 0.04em;
            line-height: 1.25;
            margin-bottom: var(--spacing-md);
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .page-banner-content p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto;
            text-shadow: 0 1px 6px rgba(0, 0, 0, 0.25);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-4xl) 0;
        }

        .section-sm {
            padding: var(--spacing-3xl) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.07em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== BRAND GRID CARDS ========== */
        .brand-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }

        .brand-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .brand-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }

        .brand-card-image {
            width: 100%;
            height: 240px;
            object-fit: cover;
            display: block;
            transition: transform var(--transition-smooth);
        }

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

        .brand-card-body {
            padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .brand-card-tag {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: var(--spacing-xs);
        }

        .brand-card-title {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .brand-card-desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            flex: 1;
        }

        .brand-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: var(--spacing-md);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }

        .brand-card-link:hover {
            color: var(--color-accent);
        }

        .brand-card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        .brand-card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== STORY BLOCK ========== */
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }

        .story-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4/3;
        }

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

        .story-image-badge {
            position: absolute;
            bottom: var(--spacing-lg);
            left: var(--spacing-lg);
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(8px);
            padding: 0.4rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.03em;
        }

        .story-content h2 {
            font-family: var(--font-serif);
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
            line-height: 1.35;
        }

        .story-content p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
        }

        .story-stats {
            display: flex;
            gap: var(--spacing-2xl);
            margin-top: var(--spacing-lg);
        }

        .story-stat-item {
            text-align: center;
        }

        .story-stat-num {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
        }

        .story-stat-label {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 2px;
            letter-spacing: 0.03em;
        }

        /* ========== DATA DASHBOARD ========== */
        .data-dashboard {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-xl);
            color: #ffffff;
        }

        .data-item {
            text-align: center;
            padding: var(--spacing-md);
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }

        .data-item:last-child {
            border-right: none;
        }

        .data-icon {
            font-size: 1.6rem;
            color: var(--color-accent-light);
            margin-bottom: var(--spacing-sm);
        }

        .data-value {
            font-family: var(--font-serif);
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: #ffffff;
        }

        .data-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .news-card {
            display: flex;
            gap: var(--spacing-lg);
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            align-items: flex-start;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .news-card-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

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

        .news-card-date {
            font-size: 0.75rem;
            color: var(--color-text-light);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }

        .news-card-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-excerpt {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== TRENDING LIST ========== */
        .trending-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 800px;
            margin: 0 auto;
        }

        .trending-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
        }

        .trending-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: transparent;
        }

        .trending-rank {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-accent);
            min-width: 44px;
            text-align: center;
            flex-shrink: 0;
        }

        .trending-info {
            flex: 1;
            min-width: 0;
        }

        .trending-info h4 {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-primary);
            margin-bottom: 2px;
        }

        .trending-info span {
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .trending-badge {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.3rem 0.7rem;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }

        .trending-badge.hot {
            background: #fef2f2;
            color: #dc2626;
        }

        .trending-badge.new {
            background: #f0fdf4;
            color: #16a34a;
        }

        .trending-badge.rising {
            background: #fff7ed;
            color: #ea580c;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: var(--color-border);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--spacing-lg) var(--spacing-xl);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-md);
            cursor: pointer;
            background: transparent;
            border: none;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            font-size: 0.75rem;
            color: var(--color-text-light);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item.open .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);
            padding: 0 var(--spacing-xl);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 var(--spacing-xl) var(--spacing-lg);
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: var(--spacing-4xl) var(--spacing-2xl);
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(184, 148, 79, 0.2) 0%, transparent 60%);
            z-index: 0;
        }

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

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-md);
        }

        .cta-section p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 500px;
            margin: 0 auto var(--spacing-xl);
            line-height: 1.7;
        }

        .cta-btn {
            display: inline-block;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-accent-light);
            padding: 0.75rem 2.2rem;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
        }

        .cta-btn:hover {
            background: #ffffff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1a1c;
            color: rgba(255, 255, 255, 0.75);
            padding: var(--spacing-4xl) 0 var(--spacing-xl);
            margin-top: var(--spacing-3xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-3xl);
        }

        .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 0.04em;
            margin-bottom: var(--spacing-md);
            text-transform: uppercase;
        }

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

        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .container {
                padding-left: var(--spacing-lg);
                padding-right: var(--spacing-lg);
            }

            .header-inner {
                padding-left: var(--spacing-lg);
                padding-right: var(--spacing-lg);
            }

            .left-group,
            .right-group {
                display: none;
            }

            .header-inner {
                justify-content: space-between;
            }

            .header-logo-wrap {
                flex: 1;
                text-align: left;
            }

            .mobile-toggle {
                display: flex;
            }

            .brand-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-lg);
            }

            .story-block {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }

            .data-dashboard {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-lg);
            }

            .data-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.12);
                padding-bottom: var(--spacing-lg);
            }

            .data-item:nth-child(3),
            .data-item:nth-child(4) {
                border-bottom: none;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

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

            .page-banner {
                min-height: 340px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }

            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }

            .header-inner {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }

            .header-logo {
                font-size: 1.3rem;
            }

            .brand-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .brand-card-image {
                height: 200px;
            }

            .data-dashboard {
                grid-template-columns: 1fr 1fr;
                padding: var(--spacing-xl);
                gap: var(--spacing-md);
            }

            .data-value {
                font-size: 1.5rem;
            }

            .story-stats {
                flex-wrap: wrap;
                gap: var(--spacing-lg);
            }

            .story-stat-num {
                font-size: 1.5rem;
            }

            .news-card {
                flex-direction: column;
                gap: var(--spacing-sm);
            }

            .news-card-thumb {
                width: 100%;
                height: 160px;
            }

            .trending-item {
                flex-wrap: wrap;
                gap: var(--spacing-sm);
            }

            .trending-rank {
                min-width: 32px;
                font-size: 1.2rem;
            }

            .faq-question {
                padding: var(--spacing-md) var(--spacing-lg);
                font-size: 0.9rem;
            }

            .cta-section {
                padding: var(--spacing-2xl) var(--spacing-lg);
                border-radius: var(--radius-lg);
                margin: 0 var(--spacing-md);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }

            .section {
                padding: var(--spacing-2xl) 0;
            }

            .section-sm {
                padding: var(--spacing-xl) 0;
            }

            .page-banner {
                min-height: 280px;
            }

            .page-banner-content h1 {
                font-size: 1.6rem;
            }

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

        @media (max-width: 520px) {
            .data-dashboard {
                grid-template-columns: 1fr;
                border-radius: var(--radius-lg);
            }

            .data-item {
                border-bottom: 1px solid rgba(255, 255, 255, 0.12);
                border-right: none;
                padding-bottom: var(--spacing-md);
            }

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

            .story-image-wrap {
                aspect-ratio: 3/2;
            }

            .trending-badge {
                font-size: 0.65rem;
                padding: 0.25rem 0.55rem;
            }

            .brand-card-body {
                padding: var(--spacing-md);
            }

            .page-banner {
                min-height: 240px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a1a1a;
            --color-accent: #c8a96e;
            --color-accent-light: #e4d3b6;
            --color-accent-dark: #a68a4c;
            --color-bg: #ffffff;
            --color-bg-alt: #f9f9f7;
            --color-bg-dark: #1e1e1e;
            --color-text: #222222;
            --color-text-weak: #666666;
            --color-text-muted: #999999;
            --color-border: #e8e5df;
            --color-border-strong: #d0ccc5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.1);
            --shadow-accent: 0 4px 14px rgba(200,169,110,0.25);
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Inter', system-ui, -apple-system, sans-serif;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 48px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
            --container-width: 1200px;
            --header-height: 80px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-main);
            line-height: 1.6;
            color: var(--color-text);
            background: var(--color-bg);
            overflow-x: hidden;
            padding-top: var(--header-height);
        }

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

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

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

        input, textarea {
            font-family: inherit;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 0.95rem;
            transition: border-color var(--transition-base);
            width: 100%;
        }

        input:focus, textarea:focus {
            outline: none;
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200,169,110,0.15);
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

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

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 var(--color-border), 0 4px 16px rgba(0,0,0,0.02);
            z-index: 1000;
            transition: background var(--transition-base);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .header-nav-group {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text);
            position: relative;
            padding: 8px 0;
            transition: color var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-accent);
            transform: scaleX(0);
            transition: transform var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-accent-dark);
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--color-accent-dark);
            font-weight: 600;
        }
        .nav-link.active::after {
            transform: scaleX(1);
            background: var(--color-accent);
        }

        .header-logo-wrap {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .header-logo {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            color: var(--color-primary);
            white-space: nowrap;
        }

        .logo-accent {
            color: var(--color-accent);
            font-style: italic;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: #333;
            box-shadow: var(--shadow-accent);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            width: 36px;
            height: 36px;
            z-index: 1100;
            position: relative;
        }

        .mobile-toggle span {
            display: block;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 120px var(--spacing-md) var(--spacing-md);
            flex-direction: column;
            gap: 32px;
            z-index: 1050;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-nav-panel.active {
            display: flex;
            opacity: 1;
        }

        .mobile-nav-panel .nav-link {
            font-size: 1.3rem;
            font-weight: 600;
            text-align: center;
        }
        .mobile-nav-panel .header-cta {
            width: fit-content;
            margin: 0 auto;
            font-size: 1rem;
            padding: 14px 36px;
        }

        @media (max-width: 1024px) {
            .header-nav-group {
                display: none;
            }
            .header-logo-wrap {
                position: static;
                transform: none;
                margin: 0 auto;
            }
            .header-inner {
                justify-content: space-between;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .mobile-nav-panel .header-cta {
                display: inline-flex;
            }
        }

        /* Hero Banner */
        .category-hero {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            min-height: 420px;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.2) 100%);
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: var(--spacing-xl) 0;
        }

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
        }

        .category-hero .subtitle {
            font-size: 1.2rem;
            font-weight: 400;
            opacity: 0.9;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .category-hero {
                min-height: 340px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero .subtitle {
                font-size: 1rem;
            }
        }

        /* Section spacing */
        .section {
            padding: var(--spacing-xl) 0;
        }

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

        .section-heading {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-heading h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-xs);
        }

        .section-heading p {
            font-size: 1.05rem;
            color: var(--color-text-weak);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Intro Block */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .intro-text h3 {
            font-size: 1.6rem;
            margin-bottom: var(--spacing-sm);
            font-weight: 600;
        }

        .intro-text p {
            color: var(--color-text-weak);
            margin-bottom: var(--spacing-sm);
            line-height: 1.7;
        }

        .intro-img img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
        }

        @media (max-width: 768px) {
            .intro-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Card Grid for Articles */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .article-img {
            width: 100%;
            aspect-ratio: 3 / 2;
            object-fit: cover;
            background: var(--color-bg-alt);
        }

        .article-body {
            padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-md);
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .article-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: var(--spacing-xs);
            line-height: 1.4;
            color: var(--color-primary);
        }

        .article-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            flex: 1;
            margin-bottom: var(--spacing-sm);
        }

        .article-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base);
        }

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

        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .articles-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
        }

        /* Data Strip */
        .stats-strip {
            display: flex;
            justify-content: center;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--color-accent-dark);
            line-height: 1.1;
        }

        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        @media (max-width: 640px) {
            .stats-strip {
                flex-direction: column;
                gap: var(--spacing-md);
            }
        }

        /* Featured Block */
        .featured-topic {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            margin-top: var(--spacing-lg);
        }

        .topic-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: box-shadow var(--transition-base);
        }

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

        .topic-card h4 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: var(--spacing-xs);
        }

        .topic-card p {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .featured-topic {
                grid-template-columns: 1fr;
            }
        }

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

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: var(--spacing-sm) 0;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            padding: 12px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-primary);
            transition: color var(--transition-base);
        }

        .faq-question i {
            transition: transform var(--transition-base);
            font-size: 1rem;
            color: var(--color-accent);
        }

        .faq-item[open] .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 0 var(--spacing-sm);
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* CTA */
        .cta-section {
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            padding: var(--spacing-xl) 0;
        }

        .cta-section h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.85;
            margin-bottom: var(--spacing-md);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 36px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-accent);
        }

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

        .btn-outline:hover {
            background: var(--color-accent);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--color-bg-dark);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            opacity: 0.75;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }

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

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

        .footer-col a {
            font-size: 0.9rem;
            color: #aaa;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.7;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }