/* roulang page: index */
:root {
            --primary: #00e676;
            --primary-glow: #00e67666;
            --primary-dark: #00c853;
            --secondary: #7c4dff;
            --secondary-glow: #7c4dff44;
            --accent: #ff4081;
            --accent-glow: #ff408144;
            --bg-deep: #06060d;
            --bg-dark: #0a0a14;
            --bg-card: #111122;
            --bg-card-hover: #181830;
            --bg-nav: rgba(8, 8, 18, 0.92);
            --bg-overlay: rgba(0, 0, 0, 0.65);
            --text: #e8e8f0;
            --text-bright: #ffffff;
            --text-weak: #8a8a9e;
            --text-muted: #5c5c72;
            --border: #1e1e36;
            --border-light: #2a2a48;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.55);
            --shadow-glow: 0 0 30px rgba(0, 230, 118, 0.18);
            --shadow-glow-lg: 0 0 60px rgba(0, 230, 118, 0.25);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            --max-width: 1200px;
            --nav-height: 64px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        input {
            font-family: inherit;
            outline: none;
            border: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-bright);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-nav);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--nav-height);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-light);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-bright);
            letter-spacing: 0.03em;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #000;
            font-weight: 900;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-bright);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links a.nav-cta {
            background: var(--primary);
            color: #000;
            font-weight: 700;
            padding: 8px 20px;
            border-radius: 24px;
            transition: all var(--transition);
            box-shadow: 0 0 18px var(--primary-glow);
        }
        .nav-links a.nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 28px var(--primary-glow);
            color: #000;
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-bright);
            border-radius: 2px;
            transition: all var(--transition-fast);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            text-align: center;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 6, 13, 0.75) 0%, rgba(10, 10, 20, 0.85) 40%, rgba(6, 6, 13, 0.95) 100%);
            z-index: 1;
        }
        .hero-glow-top {
            position: absolute;
            top: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(0, 230, 118, 0.12) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-glow-bottom {
            position: absolute;
            bottom: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(124, 77, 255, 0.1) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            width: 100%;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 24px;
            background: rgba(0, 230, 118, 0.1);
            border: 1px solid rgba(0, 230, 118, 0.25);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            animation: pulse-badge 2.5s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.3);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(0, 230, 118, 0);
            }
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            color: var(--text-bright);
            margin-bottom: 16px;
            line-height: 1.2;
            text-shadow: 0 0 40px rgba(0, 230, 118, 0.3);
        }
        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-weak);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.6;
            letter-spacing: 0.02em;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #000;
            box-shadow: 0 0 24px var(--primary-glow);
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 36px var(--primary-glow);
            transform: translateY(-2px);
            color: #000;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-bright);
            border: 2px solid var(--border-light);
            box-shadow: none;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 20px var(--primary-glow);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1rem;
            border-radius: 30px;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-bright);
            letter-spacing: 0.03em;
            font-family: var(--font-heading);
        }
        .hero-stat-value .stat-num {
            color: var(--primary);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-top: 4px;
            letter-spacing: 0.03em;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-dark {
            background: var(--bg-dark);
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-label {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 20px;
            background: rgba(124, 77, 255, 0.1);
            color: var(--secondary);
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }
        .section-desc {
            color: var(--text-weak);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
            letter-spacing: 0.02em;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: all var(--transition);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }
        .feature-card:hover::before {
            opacity: 1;
            width: 120px;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            background: rgba(0, 230, 118, 0.08);
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(0, 230, 118, 0.16);
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .feature-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.5;
            letter-spacing: 0.02em;
        }

        /* ========== SERVICES ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .service-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }
        .service-card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(0, 230, 118, 0.1);
            color: var(--primary);
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .service-card h3 {
            font-size: 1.15rem;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .service-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.5;
            flex: 1;
            letter-spacing: 0.02em;
        }
        .service-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 12px;
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--primary);
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .service-card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ========== STATS BANNER ========== */
        .stats-banner {
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-attachment: fixed;
            position: relative;
            padding: 70px 0;
            text-align: center;
        }
        .stats-banner-overlay {
            position: absolute;
            inset: 0;
            background: rgba(6, 6, 13, 0.88);
            z-index: 1;
        }
        .stats-banner-content {
            position: relative;
            z-index: 2;
        }
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            align-items: center;
        }
        .stat-block {
            text-align: center;
            min-width: 140px;
        }
        .stat-block-value {
            font-size: 3rem;
            font-weight: 900;
            color: var(--primary);
            font-family: var(--font-heading);
            letter-spacing: 0.04em;
            line-height: 1;
        }
        .stat-block-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 8px;
            letter-spacing: 0.04em;
        }
        .stat-divider {
            width: 1px;
            height: 50px;
            background: var(--border-light);
            flex-shrink: 0;
        }

        /* ========== HOW IT WORKS ========== */
        .steps-container {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .step-card {
            flex: 1 1 220px;
            max-width: 280px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #000;
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 0 18px var(--primary-glow);
        }
        .step-card h3 {
            font-size: 1rem;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .step-card p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.5;
            letter-spacing: 0.02em;
        }
        .step-arrow {
            display: flex;
            align-items: center;
            color: var(--primary);
            font-size: 1.5rem;
            flex-shrink: 0;
            align-self: center;
        }

        /* ========== DATA SHOWCASE ========== */
        .data-showcase {
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            background-attachment: fixed;
            position: relative;
            padding: 80px 0;
        }
        .data-showcase-overlay {
            position: absolute;
            inset: 0;
            background: rgba(6, 6, 13, 0.9);
            z-index: 1;
        }
        .data-showcase-content {
            position: relative;
            z-index: 2;
        }
        .data-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
            text-align: center;
        }
        .data-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .data-card-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .data-card h3 {
            font-size: 1rem;
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .data-card .data-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-bright);
            font-family: var(--font-heading);
        }
        .data-card p {
            font-size: 0.82rem;
            color: var(--text-weak);
            letter-spacing: 0.02em;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-bright);
            letter-spacing: 0.02em;
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            transition: color var(--transition-fast);
            font-family: var(--font-body);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            font-size: 0.7rem;
            color: var(--text-weak);
        }
        .faq-item.active .faq-icon {
            background: rgba(0, 230, 118, 0.15);
            color: var(--primary);
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.6;
            letter-spacing: 0.02em;
        }

        /* ========== CTA ========== */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 50%, var(--bg-deep) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-glow {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.06) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .cta-desc {
            font-size: 1rem;
            color: var(--text-weak);
            margin-bottom: 28px;
            letter-spacing: 0.02em;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            flex: 1 1 260px;
            padding: 13px 18px;
            border-radius: 28px;
            background: var(--bg-card);
            border: 2px solid var(--border);
            color: var(--text-bright);
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }
        .cta-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .cta-input::placeholder {
            color: var(--text-muted);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 40px 0;
            text-align: center;
        }
        .footer-logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-bright);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 16px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-weak);
            transition: color var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.6rem;
            }
            .steps-container {
                gap: 14px;
            }
            .step-arrow {
                display: none;
            }
            .step-card {
                max-width: 240px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--bg-nav);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 90px 28px 40px;
                gap: 4px;
                transition: right var(--transition);
                border-left: 1px solid var(--border);
                z-index: 999;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .hamburger {
                display: flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-cards {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-row {
                gap: 20px;
            }
            .stat-divider {
                display: none;
            }
            .stat-block-value {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section {
                padding: 56px 0;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-value {
                font-size: 1.5rem;
            }
            .steps-container {
                flex-direction: column;
                align-items: center;
            }
            .step-card {
                max-width: 100%;
                width: 100%;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-input {
                width: 100%;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.88rem;
            }
            .hero-section {
                background-attachment: scroll;
                min-height: auto;
                padding: 100px 20px 60px;
            }
            .stats-banner {
                background-attachment: scroll;
            }
            .data-showcase {
                background-attachment: scroll;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.85rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .container {
                padding: 0 16px;
            }
            .feature-card {
                padding: 20px 16px;
            }
            .service-card-img {
                height: 150px;
            }
            .stat-block-value {
                font-size: 1.8rem;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 12px;
                border-top: none;
                padding-top: 20px;
                margin-top: 28px;
            }
            .hero-stat {
                display: flex;
                align-items: center;
                gap: 8px;
                justify-content: center;
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
            .hero-stat-label {
                font-size: 0.78rem;
                margin-top: 0;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .nav-links {
                width: 260px;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
        }