/* roulang page: index */
:root {
            --primary: #C9A84C;
            --primary-dark: #B8943E;
            --primary-light: #E8D5A0;
            --primary-gradient: linear-gradient(135deg, #C9A84C 0%, #A8882E 100%);
            --accent: #8B1A1A;
            --accent-light: #B83A3A;
            --bg-white: #FFFFFF;
            --bg-light: #F7F5F0;
            --bg-dark: #1A1A2E;
            --bg-gray: #F0EFEA;
            --text-dark: #1A1A2E;
            --text-body: #4A4A5A;
            --text-light: #8A8A9A;
            --text-white: #FFFFFF;
            --border: #E8E3D8;
            --border-light: #F0EDE5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 30px rgba(201,168,76,0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            overflow-x: hidden;
        }

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 4px;
        }
        .section-title p {
            margin-top: 24px;
            color: var(--text-light);
            font-size: 18px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-white);
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(201, 168, 76, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(201, 168, 76, 0.45);
            color: var(--text-white);
        }
        .btn-primary:active {
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--text-white);
            color: var(--text-white);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--primary-dark);
            border-color: var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--primary);
            color: var(--text-white);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 16px 44px;
            font-size: 18px;
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .badge-accent {
            background: rgba(139, 26, 26, 0.1);
            color: var(--accent);
        }
        .badge-white {
            background: rgba(255, 255, 255, 0.2);
            color: var(--text-white);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            background: var(--bg-light);
            color: var(--text-body);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.04);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }
        .header-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-gradient);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 20px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(201, 168, 76, 0.3);
        }
        .header-logo:hover {
            color: var(--text-dark);
        }
        .header-logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-gradient);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary-dark);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 0 16px;
            height: 40px;
            border: 1px solid var(--border);
            transition: var(--transition);
            width: 200px;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
            background: var(--bg-white);
        }
        .header-search input {
            background: none;
            border: none;
            padding: 0 10px;
            height: 100%;
            width: 100%;
            color: var(--text-dark);
            font-size: 14px;
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search i {
            color: var(--text-light);
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-dark);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-light);
        }

        /* ===== Hero ===== */
        .hero {
            margin-top: var(--header-height);
            min-height: 92vh;
            display: flex;
            align-items: center;
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(26, 26, 46, 0.55) 50%, rgba(139, 26, 26, 0.35) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-white), transparent);
            z-index: 2;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            width: 100%;
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(201, 168, 76, 0.2);
            border: 1px solid rgba(201, 168, 76, 0.3);
            color: var(--primary-light);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: 56px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero h1 .highlight {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            max-width: 580px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stat-item {
            color: var(--text-white);
        }
        .hero-stat-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-light);
            display: block;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== Features ===== */
        .features {
            background: var(--bg-white);
            position: relative;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary-gradient);
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-md);
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            color: var(--text-white);
            font-size: 32px;
            box-shadow: 0 8px 24px rgba(201, 168, 76, 0.25);
        }
        .feature-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== Lottery Categories ===== */
        .categories {
            background: var(--bg-light);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
            position: relative;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .category-card .card-img {
            height: 180px;
            background: var(--bg-gray);
            position: relative;
            overflow: hidden;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover .card-img img {
            transform: scale(1.06);
        }
        .category-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
        }
        .category-card .card-body {
            padding: 20px 24px 24px;
        }
        .category-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .category-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .category-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .category-card .card-body .meta i {
            margin-right: 4px;
            color: var(--primary);
        }

        /* ===== News / CMS List ===== */
        .news {
            background: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .news-item:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
            transform: translateX(4px);
        }
        .news-item .news-thumb {
            width: 100px;
            height: 72px;
            border-radius: var(--radius-sm);
            background: var(--bg-gray);
            flex-shrink: 0;
            overflow: hidden;
        }
        .news-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-info .desc {
            font-size: 14px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .news-item .news-info .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .news-item .news-info .meta .cat {
            color: var(--primary-dark);
            font-weight: 500;
        }
        .news-item .news-info .meta i {
            margin-right: 4px;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .news-sidebar .sidebar-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
        }
        .news-sidebar .sidebar-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
        }
        .news-sidebar .sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            cursor: pointer;
        }
        .news-sidebar .sidebar-card ul li:hover {
            color: var(--primary-dark);
            padding-left: 4px;
        }
        .news-sidebar .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .news-sidebar .sidebar-card ul li .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }
        .news-sidebar .sidebar-card ul li .rank {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: var(--text-dark);
            flex-shrink: 0;
        }
        .news-sidebar .sidebar-card ul li .rank.top {
            background: var(--primary-gradient);
            color: var(--text-white);
        }

        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-light);
            font-size: 16px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* ===== Data / Process ===== */
        .data-section {
            background: var(--bg-dark);
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .data-section .container {
            position: relative;
            z-index: 1;
        }
        .data-section .section-title h2 {
            color: var(--text-white);
        }
        .data-section .section-title p {
            color: rgba(255, 255, 255, 0.6);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .data-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .data-card .data-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .data-card .data-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .data-card .data-num .unit {
            font-size: 18px;
            font-weight: 400;
            color: var(--primary-light);
        }
        .data-card .data-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
        }

        /* ===== Testimonials ===== */
        .testimonials {
            background: var(--bg-light);
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .testimonial-card .stars {
            color: var(--primary);
            font-size: 16px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .testimonial-card .text {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }
        .testimonial-card .user {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .testimonial-card .user .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-weight: 700;
            font-size: 18px;
        }
        .testimonial-card .user .info .name {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 15px;
        }
        .testimonial-card .user .info .role {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ===== FAQ ===== */
        .faq {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            color: var(--primary-dark);
        }
        .faq-item .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 60px 0 30px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary-gradient);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-white);
            font-size: 18px;
            font-weight: 700;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
        }
        .footer-bottom .copyright {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom .copyright a {
            color: var(--primary-light);
        }
        .footer-bottom .social {
            display: flex;
            gap: 12px;
        }
        .footer-bottom .social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
            font-size: 14px;
        }
        .footer-bottom .social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--text-white);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 42px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 28px;
            }
            .section-title p {
                font-size: 16px;
            }

            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px 32px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                font-size: 16px;
                padding: 8px 0;
                width: 100%;
            }
            .nav-toggle {
                display: block;
            }
            .header-search {
                width: 140px;
            }
            .header-actions .btn {
                display: none;
            }

            .hero {
                min-height: 80vh;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 17px;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .hero-stat-item .num {
                font-size: 26px;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .categories-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-card .data-num {
                font-size: 30px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 16px;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 140px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                margin-top: 32px;
                padding-top: 24px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-card {
                padding: 20px 16px;
            }
            .data-card .data-num {
                font-size: 24px;
            }
            .feature-card {
                padding: 28px 20px;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .header-search {
                width: 100px;
            }
            .header-search input {
                font-size: 13px;
            }
            .faq-item .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-item .faq-answer p {
                font-size: 14px;
            }
            .testimonial-card {
                padding: 24px 20px;
            }
        }

        @media (max-width: 380px) {
            .header-logo {
                font-size: 18px;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .hero h1 {
                font-size: 22px;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #C8A45C;
            --primary-dark: #A8873D;
            --primary-light: #E8D5A8;
            --primary-bg: #FDF8EE;
            --accent: #E8473B;
            --accent-dark: #C9302C;
            --accent-light: #FDE8E6;
            --dark: #1E293B;
            --dark-light: #334155;
            --text: #1E1E1E;
            --text-light: #6B7280;
            --text-muted: #9CA3AF;
            --bg: #FFFFFF;
            --bg-alt: #F8F6F2;
            --bg-card: #FFFFFF;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --content-width: 800px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--dark);
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: var(--content-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }

        .header.scrolled {
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
        }

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

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            color: var(--dark);
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }
        .header-logo:hover {
            color: var(--dark);
            opacity: 0.85;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 8px rgba(200, 164, 92, 0.3);
            flex-shrink: 0;
        }

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

        .nav-link {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--dark);
            background: var(--bg-alt);
        }
        .nav-link.active {
            color: var(--primary-dark);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 0 16px;
            height: 40px;
            transition: all var(--transition);
            min-width: 180px;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.15);
            background: #fff;
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 14px;
            margin-right: 10px;
        }
        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            font-size: 14px;
            color: var(--text);
            height: 100%;
            padding: 0;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 24px;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            line-height: 1.2;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 14px rgba(200, 164, 92, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 164, 92, 0.45);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 164, 92, 0.3);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 71, 59, 0.35);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 71, 59, 0.45);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-dark);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-bg);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--dark);
            padding: 8px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--border);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 100px 0 24px 0;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb .container-narrow {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-dark);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 40px 0 60px;
            background: var(--bg);
        }

        .article-header {
            margin-bottom: 40px;
        }
        .article-header .category-badge {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary-bg);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid var(--primary-light);
        }
        .article-header h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-light);
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item i {
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-meta .meta-divider {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--border);
        }

        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.6em;
        }
        .article-content h2 {
            font-size: 26px;
            margin: 40px 0 16px;
            color: var(--dark);
        }
        .article-content h3 {
            font-size: 21px;
            margin: 32px 0 12px;
            color: var(--dark-light);
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.6em;
            padding-left: 24px;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--dark-light);
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 24px auto;
            box-shadow: var(--shadow);
        }
        .article-content a {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--accent);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .article-content th,
        .article-content td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-content th {
            background: var(--bg-alt);
            font-weight: 600;
            color: var(--dark);
        }
        .article-content td {
            background: var(--bg);
        }
        .article-content code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--accent);
        }

        /* ===== Article Tags & Share ===== */
        .article-footer-bar {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag-label {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }
        .article-tags .tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--bg-alt);
            color: var(--text-light);
            font-size: 13px;
            border-radius: 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            color: var(--primary-dark);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-share .share-label {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }
        .article-share .share-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: all var(--transition);
            font-size: 15px;
        }
        .article-share .share-btn:hover {
            background: var(--primary-bg);
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Article Navigation (prev/next) ===== */
        .article-nav {
            margin-top: 40px;
            padding: 24px 0;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            gap: 24px;
        }
        .article-nav a {
            display: flex;
            flex-direction: column;
            gap: 4px;
            max-width: 45%;
            padding: 16px 20px;
            border-radius: var(--radius);
            background: var(--bg-alt);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .article-nav a:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .article-nav .nav-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-nav .nav-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.4;
        }
        .article-nav a:hover .nav-title {
            color: var(--primary-dark);
        }
        .article-nav .nav-next {
            text-align: right;
        }
        .article-nav .nav-prev {
            text-align: left;
        }

        /* ===== Not Found ===== */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .article-not-found h2 {
            font-size: 28px;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .article-not-found p {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 24px;
        }

        /* ===== Related Posts ===== */
        .related-posts {
            padding: 60px 0;
            background: var(--bg-alt);
        }
        .related-posts .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .related-posts .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            margin-bottom: 32px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .related-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }
        .related-card .card-title a {
            color: var(--dark);
        }
        .related-card .card-title a:hover {
            color: var(--primary-dark);
        }
        .related-card .card-excerpt {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-meta i {
            font-size: 12px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--dark) 0%, #0F172A 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .btn {
            font-size: 17px;
            padding: 16px 40px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer .footer-col ul li a:hover {
            color: var(--primary-light);
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer .footer-bottom .copyright {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer .footer-bottom .copyright a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer .footer-bottom .copyright a:hover {
            color: var(--primary-light);
        }
        .footer .social {
            display: flex;
            gap: 12px;
        }
        .footer .social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: all var(--transition);
        }
        .footer .social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Mobile Navigation ===== */
        @media (max-width: 1024px) {
            .header-search {
                min-width: 140px;
            }
            .header-search input {
                width: 80px;
            }
            .nav-link {
                padding: 8px 14px;
                font-size: 14px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: var(--primary-bg);
                color: var(--primary-dark);
            }

            .nav-toggle {
                display: flex;
            }

            .header-search {
                min-width: 120px;
                height: 36px;
            }
            .header-search input {
                width: 60px;
                font-size: 13px;
            }

            .header-actions .btn-sm {
                padding: 6px 14px;
                font-size: 12px;
            }
            .header-actions .btn-sm i {
                display: none;
            }

            .breadcrumb {
                padding: 80px 0 16px;
            }

            .article-header h1 {
                font-size: 26px;
            }
            .article-content {
                font-size: 16px;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 18px;
            }

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

            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 16px;
            }

            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .article-nav {
                flex-direction: column;
            }
            .article-nav a {
                max-width: 100%;
            }
            .article-nav .nav-next {
                text-align: left;
            }

            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

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

            .header-logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }

            .header-search {
                min-width: 100px;
            }
            .header-search input {
                width: 50px;
            }

            .article-header h1 {
                font-size: 22px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 20px;
            }
            .article-content h3 {
                font-size: 17px;
            }

            .related-card .card-img {
                height: 140px;
            }

            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .cta-section .btn {
                padding: 12px 28px;
                font-size: 15px;
            }
        }

        /* ===== Utility ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex {
            display: flex;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #d4a017;
            --primary-light: #f0c75e;
            --primary-dark: #b8860b;
            --primary-gradient: linear-gradient(135deg, #d4a017 0%, #f0c75e 100%);
            --secondary: #1a2a4a;
            --secondary-light: #2c4068;
            --accent: #e85d3a;
            --accent-light: #f07a5c;
            --bg-light: #f8f7f4;
            --bg-white: #ffffff;
            --bg-dark: #0f1923;
            --bg-section-alt: #f0ede8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #7a7a8a;
            --text-light: #f0ece4;
            --border-color: #e5e0d8;
            --border-light: #f0ede8;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary-dark); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 8px rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            flex-shrink: 0;
        }
        .header-logo:hover { color: var(--primary-dark); }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--primary-gradient);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(212,160,23,0.3);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-link:hover { color: var(--primary-dark); background: rgba(212,160,23,0.08); }
        .nav-link.active {
            color: #fff;
            background: var(--primary-gradient);
            box-shadow: 0 4px 14px rgba(212,160,23,0.3);
        }
        .nav-link.active:hover { color: #fff; background: var(--primary-gradient); }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(212,160,23,0.15); }
        .header-search i { color: var(--text-muted); font-size: 14px; margin-right: 8px; }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 0;
            outline: none;
            width: 160px;
            font-size: 14px;
            color: var(--text-primary);
        }
        .header-search input::placeholder { color: var(--text-muted); }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 4px 14px rgba(212,160,23,0.3);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,160,23,0.4); color: #fff; }
        .btn-secondary {
            background: var(--secondary);
            color: #fff;
        }
        .btn-secondary:hover { background: var(--secondary-light); transform: translateY(-2px); color: #fff; }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255,255,255,0.5);
            color: #fff;
        }
        .btn-outline:hover { background: rgba(255,255,255,0.15); border-color: #fff; color: #fff; }
        .btn-sm { padding: 7px 18px; font-size: 14px; }
        .btn-lg { padding: 14px 36px; font-size: 17px; }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
        }

        /* ===== Hero ===== */
        .hero {
            padding-top: var(--header-height);
            min-height: 92vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            filter: saturate(1.1);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,25,35,0.92) 0%, rgba(26,42,74,0.80) 50%, rgba(15,25,35,0.88) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212,160,23,0.18);
            border: 1px solid rgba(212,160,23,0.3);
            color: var(--primary-light);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: clamp(36px, 6.5vw, 72px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 18px;
            letter-spacing: -1px;
        }
        .hero h1 span { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            font-size: clamp(16px, 2vw, 22px);
            color: rgba(255,255,255,0.75);
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }
        .hero-search {
            display: flex;
            align-items: center;
            max-width: 520px;
            margin: 0 auto 20px;
            background: rgba(255,255,255,0.12);
            border-radius: 50px;
            padding: 4px;
            border: 1px solid rgba(255,255,255,0.15);
            backdrop-filter: blur(8px);
        }
        .hero-search input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 14px 20px;
            outline: none;
            color: #fff;
            font-size: 16px;
        }
        .hero-search input::placeholder { color: rgba(255,255,255,0.5); }
        .hero-search button {
            background: var(--primary-gradient);
            border: none;
            color: #fff;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hero-search button:hover { transform: scale(1.03); box-shadow: 0 4px 20px rgba(212,160,23,0.4); }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 36px;
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-light);
        }
        .hero-stat .label {
            font-size: 14px;
            color: rgba(255,255,255,0.55);
            margin-top: 2px;
        }

        /* ===== Sections ===== */
        section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-title h2 {
            font-size: clamp(28px, 3.6vw, 40px);
            font-weight: 800;
            color: var(--text-primary);
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 580px;
            margin: 10px auto 0;
        }
        .section-title .subtitle {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            background: rgba(212,160,23,0.12);
            padding: 4px 18px;
            border-radius: 40px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .bg-alt { background: var(--bg-section-alt); }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section .section-title h2 { color: #fff; }
        .bg-dark-section .section-title p { color: rgba(255,255,255,0.65); }

        /* ===== Features / 核心优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212,160,23,0.2); }
        .feature-card .icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 26px;
            color: #fff;
            box-shadow: 0 8px 20px rgba(212,160,23,0.25);
        }
        .feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
        .feature-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.6; }

        /* ===== Categories / 彩种分类 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            padding: 24px;
            text-align: center;
        }
        .category-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
        .category-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
        }
        .category-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
        .category-card p { color: var(--text-muted); font-size: 14px; }
        .category-card .tag {
            display: inline-block;
            background: rgba(212,160,23,0.12);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            margin-top: 8px;
        }

        /* ===== News / 最新资讯 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
        .news-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .news-card-body { padding: 20px 22px 24px; }
        .news-card-body .date {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
        }
        .news-card-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .news-card-body h3 a { color: var(--text-primary); }
        .news-card-body h3 a:hover { color: var(--primary-dark); }
        .news-card-body p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; margin-bottom: 12px; }
        .news-card-body .read-more {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary-dark);
        }
        .news-card-body .read-more i { transition: var(--transition); }
        .news-card-body .read-more:hover i { transform: translateX(4px); }

        /* ===== How it Works / 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            position: relative;
        }
        .step-card .step-num {
            counter-increment: step;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 8px 24px rgba(212,160,23,0.3);
        }
        .step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .step-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

        /* ===== Testimonials / 用户评价 ===== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .testimonial-card:hover { box-shadow: var(--shadow-md); }
        .testimonial-card .stars { color: #f5c842; font-size: 16px; margin-bottom: 12px; }
        .testimonial-card blockquote {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author img {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
        }
        .testimonial-card .author .name { font-weight: 700; font-size: 15px; }
        .testimonial-card .author .role { font-size: 13px; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(212,160,23,0.2); }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i { transition: transform 0.3s; color: var(--text-muted); }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3.2vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255,255,255,0.7);
            max-width: 540px;
            margin: 0 auto 28px;
        }
        .cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer .container {}
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 320px; }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 14px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copyright a { color: var(--primary-light); }
        .footer-bottom .social { display: flex; gap: 14px; }
        .footer-bottom .social a {
            color: rgba(255,255,255,0.4);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-bottom .social a:hover { color: var(--primary-light); transform: translateY(-2px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav { display: none; }
            .nav.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                border-bottom: 1px solid var(--border-color);
                padding: 16px 24px;
                box-shadow: var(--shadow-lg);
                gap: 4px;
            }
            .nav.mobile-open .nav-link { padding: 12px 16px; border-radius: var(--radius-sm); }
            .nav-toggle { display: block; }
            .header-search { display: none; }
            .header-actions .btn-sm { display: none; }
            .hero h1 { font-size: 32px; }
            .hero p { font-size: 16px; }
            .hero-stats { gap: 20px; }
            .hero-stat .num { font-size: 24px; }
            section { padding: 50px 0; }
            .section-title { margin-bottom: 32px; }
            .features-grid { grid-template-columns: 1fr 1fr; }
            .categories-grid { grid-template-columns: 1fr 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .testimonials-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .hero-search { flex-direction: column; background: transparent; border: none; gap: 12px; }
            .hero-search input { width: 100%; background: rgba(255,255,255,0.1); border-radius: 40px; padding: 12px 18px; }
            .hero-search button { width: 100%; }
        }
        @media (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .container { padding: 0 16px; }
            .hero h1 { font-size: 28px; }
            .hero-stat .num { font-size: 20px; }
            .cta-buttons .btn { width: 100%; justify-content: center; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 8px; }
        .mt-4 { margin-top: 16px; }
        .gap-2 { gap: 8px; }

        /* ===== Scroll Animation (light) ===== */
        .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }