/* roulang page: index */
:root {
            --primary: #7c3aed;
            --primary-dark: #6d28d9;
            --primary-light: #ddd6fe;
            --secondary: #10b981;
            --secondary-dark: #059669;
            --accent: #f59e0b;
            --dark-bg: #0f172a;
            --dark-bg-2: #1e293b;
            --dark-text: #f1f5f9;
            --dark-text-dim: #94a3b8;
            --light-bg: #f8fafc;
            --light-bg-2: #ffffff;
            --text-main: #1e293b;
            --text-dim: #64748b;
            --border-color: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, .08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .15);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --space-section: 90px;
            --space-section-mobile: 55px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--light-bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header Navigation (SaaS Command Bar Style) ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition);
        }
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #a855f7);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
            box-shadow: 0 4px 15px rgba(124, 58, 237, .4);
        }
        .logo-mark i {
            color: #fff;
            font-size: 18px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary-light);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, .75);
            font-size: 14.5px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 40px;
            transition: var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }
        .nav-menu a.active {
            color: #fff;
            background: rgba(124, 58, 237, .35);
            box-shadow: 0 0 0 1px rgba(124, 58, 237, .4);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-wrapper {
            position: relative;
        }
        .search-wrapper i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, .5);
            font-size: 14px;
            pointer-events: none;
        }
        .search-input {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 40px;
            padding: 9px 16px 9px 38px;
            font-size: 13.5px;
            color: #fff;
            width: 180px;
            transition: var(--transition);
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, .45);
        }
        .search-input:focus {
            background: rgba(255, 255, 255, .18);
            border-color: rgba(124, 58, 237, .7);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, .25);
            width: 240px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #a855f7);
            color: #fff;
            border-radius: 40px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 15px rgba(124, 58, 237, .35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(124, 58, 237, .5);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(124, 58, 237, .3);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(124, 58, 237, .5);
            outline-offset: 2px;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .3);
            border-radius: 40px;
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline-light:hover {
            border-color: var(--primary);
            background: rgba(124, 58, 237, .2);
            transform: translateY(-2px);
        }
        .mobile-toggle {
            display: none;
            background: transparent;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 6px;
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            display: none;
            background: var(--dark-bg-2);
            padding: 16px 24px;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }
        .mobile-menu a {
            display: block;
            color: rgba(255, 255, 255, .8);
            padding: 12px 8px;
            font-size: 15px;
            border-radius: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .mobile-menu a.active {
            color: #fff;
            background: rgba(124, 58, 237, .25);
            padding-left: 16px;
        }
        .mobile-menu.open {
            display: block;
        }

        /* ===== Hero Section with Backpic ===== */
        .hero-section {
            position: relative;
            background: var(--dark-bg);
            color: #fff;
            padding: 80px 0 70px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 23, 42, .92) 0%, rgba(15, 23, 42, .75) 50%, rgba(15, 23, 42, .5) 100%);
        }
        .hero-section .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 50px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, .15);
            border: 1px solid rgba(245, 158, 11, .3);
            color: #fbbf24;
            font-size: 13px;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: 40px;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .hero-badge i {
            font-size: 14px;
        }
        .hero-title {
            font-size: clamp(32px, 4vw, 50px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #a78bfa, #f472b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 24px;
            max-width: 560px;
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .hero-stat strong {
            font-size: 22px;
            font-weight: 700;
            display: block;
            color: #fff;
        }
        .hero-stat span {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-panel {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: var(--radius-lg);
            padding: 26px;
            backdrop-filter: blur(10px);
        }
        .hero-panel-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .heat-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .heat-item:last-child {
            border-bottom: none;
        }
        .heat-item .name {
            font-size: 14px;
            color: rgba(255, 255, 255, .9);
        }
        .heat-item .score {
            font-size: 13px;
            color: #fbbf24;
            font-weight: 600;
            background: rgba(245, 158, 11, .15);
            padding: 3px 10px;
            border-radius: 20px;
        }
        .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .hero-tag {
            background: rgba(255, 255, 255, .08);
            border-radius: 6px;
            padding: 5px 12px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, .7);
            border: 1px solid rgba(255, 255, 255, .1);
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--light-bg-2);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 50px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-title {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-dim);
            line-height: 1.8;
        }

        /* ===== Feature Highlights ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--light-bg-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .feature-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, rgba(124, 58, 237, .1), rgba(124, 58, 237, .2));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 20px;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.7;
        }

        /* ===== Service Matrix / Category Cards ===== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .matrix-card {
            background: var(--light-bg-2);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .matrix-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .matrix-card img {
            height: 120px;
            width: 100%;
            object-fit: cover;
        }
        .matrix-card-body {
            padding: 18px 18px 20px;
        }
        .matrix-card-body h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
        }
        .matrix-card-body p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.6;
        }
        .matrix-badge {
            display: inline-block;
            background: rgba(16, 185, 129, .1);
            color: var(--secondary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            margin-top: 10px;
        }

        /* ===== Data Metrics Strip ===== */
        .data-strip {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-strip::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
        }
        .data-item {
            text-align: center;
        }
        .data-item strong {
            font-size: 28px;
            font-weight: 700;
            display: block;
            background: linear-gradient(135deg, #a78bfa, #f472b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .data-item span {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        /* ===== How It Works / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .step-card {
            background: var(--light-bg-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            margin: 0 auto 14px;
            box-shadow: 0 4px 12px rgba(124, 58, 237, .3);
        }
        .step-card h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.6;
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--light-bg-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }
        .testimonial-card blockquote {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-main);
            margin: 0 0 16px;
            border-left: 3px solid var(--primary-light);
            padding-left: 14px;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #a855f7);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
        }
        .testimonial-author cite {
            font-style: normal;
            font-size: 13px;
            font-weight: 600;
        }
        .testimonial-author span {
            font-size: 12px;
            color: var(--text-dim);
            display: block;
        }

        /* ===== News / Info List ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 30px;
            align-items: start;
        }
        .news-list {
            background: var(--light-bg-2);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }
        .news-item {
            display: flex;
            padding: 18px 22px;
            border-bottom: 1px solid var(--border-color);
            gap: 16px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            background: rgba(124, 58, 237, .03);
        }
        .news-date {
            flex-shrink: 0;
            font-size: 12px;
            color: var(--text-dim);
            background: var(--light-bg);
            padding: 4px 10px;
            border-radius: 20px;
            margin-top: 3px;
            border: 1px solid var(--border-color);
        }
        .news-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.6;
        }
        .news-link:hover {
            color: var(--primary);
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--light-bg-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .sidebar-list li {
            font-size: 14px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list li i {
            color: var(--primary);
            font-size: 12px;
        }
        .sidebar-list li a:hover {
            color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--light-bg-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            padding: 0;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s;
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            padding: 0 24px 20px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--dark-bg) 0%, #1e1b4b 50%, var(--dark-bg-2) 100%);
            border-radius: var(--radius-lg);
            padding: 60px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 58, 237, .3), transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

        /* ===== Quick Coupon / Hot List ===== */
        .coupon-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .coupon-card {
            background: linear-gradient(135deg, var(--light-bg-2), #faf5ff);
            border: 1px solid var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }
        .coupon-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .coupon-card::after {
            content: '热门';
            position: absolute;
            top: 14px;
            right: -30px;
            background: var(--accent);
            color: #fff;
            font-size: 11px;
            padding: 4px 30px;
            transform: rotate(45deg);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(245, 158, 11, .4);
        }
        .coupon-value {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .coupon-title {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .coupon-desc {
            font-size: 13px;
            color: var(--text-dim);
            line-height: 1.6;
        }
        .coupon-link {
            display: inline-block;
            margin-top: 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(124, 58, 237, .1);
            padding: 8px 20px;
            border-radius: 40px;
            transition: var(--transition);
        }
        .coupon-link:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Safety/Trust ===== */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .trust-item {
            text-align: center;
            padding: 26px 16px;
            background: var(--light-bg-2);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .trust-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .trust-item i {
            font-size: 26px;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .trust-item h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .trust-item p {
            font-size: 12.5px;
            color: var(--text-dim);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .7);
            padding: 50px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-about .logo-text {
            font-size: 18px;
            margin-bottom: 14px;
        }
        .footer-about p {
            font-size: 13.5px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .55);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 13.5px;
            padding: 6px 0;
            color: rgba(255, 255, 255, .6);
        }
        .footer-col a:hover {
            color: #a78bfa;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 768px) {
            .header-container {
                height: 64px;
            }
            .logo-text {
                font-size: 16px;
            }
            .nav-menu {
                display: none;
            }
            .search-wrapper {
                display: none;
            }
            .header-actions {
                gap: 8px;
            }
            .btn-header {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .section-block {
                padding: var(--space-section-mobile) 0;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .coupon-grid {
                grid-template-columns: 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
                padding: 30px 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .hero-panel {
                padding: 20px;
            }
        }
        @media screen and (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 14.5px;
            }
            .hero-stats {
                gap: 16px;
            }
            .data-strip {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #7c3aed;
            --primary-dark: #6d28d9;
            --primary-light: #ddd6fe;
            --secondary: #10b981;
            --secondary-dark: #059669;
            --accent: #f59e0b;
            --dark-bg: #0f172a;
            --dark-bg-2: #1e293b;
            --dark-text: #f1f5f9;
            --dark-text-dim: #94a3b8;
            --light-bg: #f8fafc;
            --light-bg-2: #ffffff;
            --text-main: #1e293b;
            --text-dim: #64748b;
            --border-color: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, .08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, .15);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --space-section: 90px;
            --space-section-mobile: 55px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--light-bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header Navigation (SaaS Command Bar Style) ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            transition: var(--transition);
        }
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #a855f7);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
            box-shadow: 0 4px 15px rgba(124, 58, 237, .4);
        }
        .logo-mark i {
            color: #fff;
            font-size: 18px;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--primary-light);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu a {
            color: rgba(255, 255, 255, .75);
            font-size: 14.5px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: 40px;
            transition: var(--transition);
            position: relative;
        }
        .nav-menu a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }
        .nav-menu a.active {
            color: #fff;
            background: rgba(124, 58, 237, .35);
            box-shadow: 0 0 0 1px rgba(124, 58, 237, .4);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-wrapper {
            position: relative;
        }
        .search-wrapper i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, .5);
            font-size: 14px;
            pointer-events: none;
        }
        .search-input {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 40px;
            padding: 9px 16px 9px 38px;
            font-size: 13.5px;
            color: #fff;
            width: 180px;
            transition: var(--transition);
        }
        .search-input::placeholder {
            color: rgba(255, 255, 255, .45);
        }
        .search-input:focus {
            background: rgba(255, 255, 255, .18);
            border-color: rgba(124, 58, 237, .7);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, .25);
            width: 240px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #a855f7);
            color: #fff;
            border-radius: 40px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 15px rgba(124, 58, 237, .35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(124, 58, 237, .5);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(124, 58, 237, .3);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(124, 58, 237, .5);
            outline-offset: 2px;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, .35);
            border-radius: 40px;
            padding: 9px 20px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .6);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Subpage Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 90px 0 70px;
            background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 60%, #2e1065 100%);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: .12;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, .35), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, .6);
            font-size: 13.5px;
            margin-bottom: 20px;
        }
        .hero-breadcrumb a {
            color: rgba(255, 255, 255, .7);
        }
        .hero-breadcrumb a:hover {
            color: var(--primary-light);
        }
        .hero-breadcrumb i {
            font-size: 11px;
        }
        .hero-title {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -.5px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #a78bfa, #f0abfc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 16.5px;
            color: rgba(255, 255, 255, .7);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 30px;
        }
        .hero-metrics {
            display: flex;
            gap: 36px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, .12);
        }
        .hero-metric-item {
            display: flex;
            flex-direction: column;
        }
        .hero-metric-value {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        /* ===== Section Common ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--light-bg-2);
        }
        .section-header {
            margin-bottom: 44px;
        }
        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 14px;
        }
        .section-header .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -.5px;
        }
        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-dim);
            max-width: 640px;
        }

        /* ===== Metrics Board ===== */
        .metrics-board {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 44px 48px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .metrics-board::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 58, 237, .3), transparent 70%);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        .metric-card {
            text-align: center;
            padding: 10px 0;
        }
        .metric-icon {
            width: 48px;
            height: 48px;
            background: rgba(124, 58, 237, .2);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .metric-icon i {
            color: #a78bfa;
            font-size: 20px;
        }
        .metric-number {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .metric-number sup {
            font-size: 18px;
            color: var(--primary-light);
        }
        .metric-label {
            font-size: 14px;
            color: var(--dark-text-dim);
            margin-top: 4px;
        }

        /* ===== Service Matrix ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--light-bg-2);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, rgba(124, 58, 237, .1), rgba(16, 185, 129, .1));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .service-icon i {
            font-size: 24px;
            color: var(--primary);
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14.5px;
            color: var(--text-dim);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .service-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .service-list li {
            font-size: 13.5px;
            color: var(--text-dim);
            padding: 4px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .service-list li i {
            color: var(--secondary);
            font-size: 12px;
        }

        /* ===== Result Compare ===== */
        .compare-wrap {
            background: var(--light-bg-2);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .compare-header {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            background: var(--dark-bg);
            padding: 20px 30px;
            gap: 20px;
        }
        .compare-header-item {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }
        .compare-header-item:first-child {
            color: var(--dark-text-dim);
            font-weight: 500;
            font-size: 14.5px;
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            padding: 22px 30px;
            gap: 20px;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
            transition: var(--transition);
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .compare-row:hover {
            background: rgba(124, 58, 237, .03);
        }
        .compare-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }
        .compare-label small {
            display: block;
            font-size: 13px;
            color: var(--text-dim);
            font-weight: 400;
            margin-top: 2px;
        }
        .compare-value {
            font-size: 14px;
            color: var(--text-dim);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-value i.fa-check-circle {
            color: var(--secondary);
        }
        .compare-value i.fa-minus-circle {
            color: #cbd5e1;
        }
        .compare-value-strong {
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== Tips List ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tip-card {
            display: flex;
            gap: 16px;
            background: var(--light-bg-2);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .tip-card:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .tip-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), #a855f7);
            border-radius: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .tip-card h4 {
            font-size: 16.5px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .tip-card p {
            font-size: 14px;
            color: var(--text-dim);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ===== Gallery ===== */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .gallery-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            aspect-ratio: 3/4;
            box-shadow: var(--shadow-sm);
        }
        .gallery-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .gallery-card:hover img {
            transform: scale(1.06);
        }
        .gallery-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, .75), transparent 55%);
            display: flex;
            align-items: flex-end;
            padding: 18px;
        }
        .gallery-overlay span {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--light-bg-2);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(124, 58, 237, .3);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 15px;
            transition: transform .3s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .3s;
            font-size: 14.5px;
            color: var(--text-dim);
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            padding: 0 28px 22px;
            max-height: 300px;
        }

        /* ===== CTA + Form ===== */
        .cta-section {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            padding: 56px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(124, 58, 237, .4), transparent 70%);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(16, 185, 129, .2), transparent 70%);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            position: relative;
            z-index: 2;
            align-items: center;
        }
        .cta-title {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .cta-desc {
            font-size: 15px;
            color: var(--dark-text-dim);
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .cta-points {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .8);
            font-size: 14.5px;
            padding: 4px 0;
        }
        .cta-points li i {
            color: var(--secondary);
            font-size: 14px;
        }
        .form-card {
            background: var(--light-bg-2);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow-lg);
        }
        .form-card h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-card p {
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .form-group input {
            width: 100%;
            border: 1.5px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            transition: var(--transition);
            background: var(--light-bg);
        }
        .form-group input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, .15);
            background: #fff;
        }
        .form-btn {
            width: 100%;
            margin-top: 8px;
            justify-content: center;
            padding: 14px;
            font-size: 15px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            color: var(--dark-text-dim);
            padding-top: 70px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
        }
        .footer-about .logo-text {
            font-size: 20px;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-about p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--dark-text-dim);
            margin-bottom: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--dark-text-dim);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .search-wrapper {
                display: none;
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 36px;
            }
        }
        @media screen and (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-actions .btn-primary {
                display: none;
            }
            .nav-menu.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--dark-bg);
                padding: 20px;
                border-bottom: 1px solid rgba(255, 255, 255, .1);
                gap: 4px;
                align-items: stretch;
            }
            .nav-menu.open a {
                padding: 14px 16px;
                text-align: center;
                border-radius: var(--radius-sm);
            }
            .section {
                padding: var(--space-section-mobile) 0;
            }
            .section-header .section-title {
                font-size: 28px;
            }
            .page-hero {
                padding: 60px 0 50px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-metrics {
                flex-wrap: wrap;
                gap: 20px;
            }
            .metrics-board {
                padding: 30px 24px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .compare-header {
                display: none;
            }
            .compare-row {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 18px 20px;
            }
            .compare-label {
                font-size: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-title {
                font-size: 26px;
            }
            .form-card {
                padding: 28px 22px;
            }
        }
        @media screen and (max-width: 520px) {
            .logo-text {
                font-size: 15px;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                margin-right: 8px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .metric-number {
                font-size: 26px;
            }
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
            }
        }