/* roulang page: index */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04F15;
            --primary-light: #FF7B4D;
            --secondary: #1C1C1E;
            --accent: #00A86B;
            --accent-light: #00C97E;
            --bg-light: #F7F7F7;
            --bg-white: #FFFFFF;
            --text-primary: #1C1C1E;
            --text-secondary: #6B7280;
            --text-white: #FFFFFF;
            --border: #E5E7EB;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --section-padding: 100px;
            --section-padding-mobile: 60px;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-height);
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
        }

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

        /* ============ NAVIGATION ============ */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            transition: all var(--transition-slow);
            background: transparent;
        }

        .nav.scrolled {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
        }

        .nav.scrolled .nav-logo-text {
            color: var(--secondary);
        }

        .nav.scrolled .nav-logo-dot {
            color: var(--primary);
        }

        .nav.scrolled .nav-link {
            color: var(--text-secondary);
        }

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

        .nav.scrolled .nav-cta-btn {
            background: var(--primary);
            color: var(--text-white);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            z-index: 1002;
        }

        .nav-logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -1px;
            flex-shrink: 0;
        }

        .nav-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -0.5px;
            transition: color var(--transition-slow);
            white-space: nowrap;
        }

        .nav-logo-dot {
            color: var(--primary-light);
            transition: color var(--transition-slow);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transition: width var(--transition);
        }

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

        .nav-link:hover {
            color: #fff;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            white-space: nowrap;
            border: 2px solid var(--primary);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.35);
            transform: translateY(-1px);
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            padding: 4px;
        }

        .nav-hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition);
            transform-origin: center;
        }

        .nav.scrolled .nav-hamburger span {
            background: var(--secondary);
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
            background: var(--secondary);
        }

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

        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
            background: var(--secondary);
        }

        .nav-mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 1001;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }

        .nav-mobile-overlay.active {
            opacity: 1;
            pointer-events: all;
        }

        .nav-mobile-overlay a {
            font-size: 22px;
            font-weight: 600;
            color: var(--secondary);
            transition: color var(--transition);
        }

        .nav-mobile-overlay a:hover {
            color: var(--primary);
        }

        .nav-mobile-overlay .nav-cta-btn {
            font-size: 16px;
            padding: 14px 32px;
            margin-top: 8px;
        }

        /* ============ HERO ============ */
        .hero {
            position: relative;
            min-height: 650px;
            display: flex;
            align-items: center;
            background: var(--secondary);
            overflow: hidden;
            padding-top: var(--nav-height);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 28, 30, 0.78) 0%, rgba(28, 28, 30, 0.55) 40%, rgba(255, 90, 31, 0.25) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-text {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 168, 107, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(0, 168, 107, 0);
            }
        }

        .hero-title {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .hero-title-accent {
            color: var(--primary);
            display: inline;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 36px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border: 2px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 6px 24px rgba(255, 90, 31, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition);
        }

        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateX(4px);
        }

        .hero-stat-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .hero-stat-icon.orange {
            background: rgba(255, 90, 31, 0.3);
            color: #FFB088;
        }

        .hero-stat-icon.green {
            background: rgba(0, 168, 107, 0.3);
            color: #5CE0B0;
        }

        .hero-stat-icon.blue {
            background: rgba(59, 130, 246, 0.3);
            color: #93BBFD;
        }

        .hero-stat-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-number {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }

        /* ============ METRICS ============ */
        .metrics {
            padding: var(--section-padding) 0;
            background: var(--bg-white);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 36px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition);
            border-left: 3px solid var(--primary);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255, 90, 31, 0.04);
            transition: all var(--transition-slow);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .metric-card:hover::after {
            transform: scale(2);
        }

        .metric-card:nth-child(2) {
            border-left-color: var(--accent);
        }
        .metric-card:nth-child(2)::after {
            background: rgba(0, 168, 107, 0.04);
        }
        .metric-card:nth-child(3) {
            border-left-color: #3B82F6;
        }
        .metric-card:nth-child(3)::after {
            background: rgba(59, 130, 246, 0.04);
        }
        .metric-card:nth-child(4) {
            border-left-color: #F59E0B;
        }
        .metric-card:nth-child(4)::after {
            background: rgba(245, 158, 11, 0.04);
        }

        .metric-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        .metric-card:nth-child(1) .metric-icon-wrap {
            background: #FFF0EB;
            color: var(--primary);
        }
        .metric-card:nth-child(2) .metric-icon-wrap {
            background: #E6F7F0;
            color: var(--accent);
        }
        .metric-card:nth-child(3) .metric-icon-wrap {
            background: #EFF4FE;
            color: #3B82F6;
        }
        .metric-card:nth-child(4) .metric-icon-wrap {
            background: #FFFBEB;
            color: #F59E0B;
        }

        .metric-info {
            position: relative;
            z-index: 1;
            flex: 1;
        }

        .metric-number {
            font-size: 40px;
            font-weight: 800;
            line-height: 1;
            letter-spacing: -1px;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 400;
        }

        /* ============ SERVICES ============ */
        .services {
            padding: var(--section-padding) 0;
            background: var(--bg-light);
        }

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

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
            overflow: hidden;
        }

        .service-card.featured {
            grid-column: span 2;
            grid-row: span 1;
            flex-direction: row;
            align-items: center;
            gap: 32px;
            padding: 36px 32px;
        }

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

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-img-wrap {
            flex-shrink: 0;
            width: 100%;
            height: 160px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .service-card.featured .service-img-wrap {
            width: 200px;
            height: 180px;
        }

        .service-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .service-card:hover .service-img-wrap img {
            transform: scale(1.05);
        }

        .service-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-card-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: #FFF0EB;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .service-card-title {
            font-size: 20px;
            line-height: 1.35;
            font-weight: 600;
            color: var(--text-primary);
        }

        .service-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .service-card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
            margin-top: auto;
        }

        .service-card:hover .service-card-arrow {
            gap: 12px;
        }

        /* ============ COMPARISON ============ */
        .comparison {
            padding: var(--section-padding) 0;
            background: var(--bg-white);
        }

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            transition: all var(--transition);
        }

        .comparison-card.old {
            background: #F9FAFB;
            border: 2px solid #E5E7EB;
        }

        .comparison-card.new {
            background: linear-gradient(135deg, #FFFBF7 0%, #FFF5EF 100%);
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .comparison-card.new::after {
            content: '★ 推荐';
            position: absolute;
            top: 20px;
            right: -28px;
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 6px 36px;
            transform: rotate(45deg);
            letter-spacing: 1px;
        }

        .comparison-card-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-card.old .comparison-card-title {
            color: #9CA3AF;
        }
        .comparison-card.new .comparison-card-title {
            color: var(--primary);
        }

        .comparison-card-subtitle {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .comparison-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            line-height: 1.5;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .comparison-card.old .comparison-list li {
            background: #F3F4F6;
            color: #9CA3AF;
        }

        .comparison-card.new .comparison-list li {
            background: rgba(255, 255, 255, 0.7);
            color: var(--text-primary);
        }

        .comparison-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-top: 2px;
        }

        .comparison-card.old .comparison-icon {
            background: #E5E7EB;
            color: #9CA3AF;
        }

        .comparison-card.new .comparison-icon {
            background: var(--accent);
            color: #fff;
        }

        /* ============ FAQ ============ */
        .faq {
            padding: var(--section-padding) 0;
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .faq-item.active {
            border-color: #FDDFD4;
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
            background: none;
            border: none;
            font-family: inherit;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid #D1D5DB;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: #9CA3AF;
            transition: all var(--transition);
        }

        .faq-item.active .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            background: #FFF0EB;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

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

        .faq-answer-inner {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ CONTACT ============ */
        .contact {
            padding: var(--section-padding) 0;
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }

        .contact::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 90, 31, 0.1);
            pointer-events: none;
        }

        .contact::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: rgba(0, 168, 107, 0.08);
            pointer-events: none;
        }

        .contact-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .contact-info {
            color: var(--text-white);
        }

        .contact-info .section-title {
            color: #fff;
        }

        .contact-info .section-desc {
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }

        .contact-trust {
            display: flex;
            gap: 20px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .contact-trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }

        .contact-trust-check {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            color: #fff;
            flex-shrink: 0;
        }

        .contact-form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-xl);
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .form-input {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #E5E7EB;
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-primary);
            background: #FAFBFC;
            transition: all var(--transition);
            font-family: inherit;
        }

        .form-input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.08);
            outline: none;
        }

        .form-input::placeholder {
            color: #B0B7C3;
        }

        textarea.form-input {
            resize: vertical;
            min-height: 100px;
        }

        .form-submit {
            width: 100%;
            padding: 15px 32px;
            background: linear-gradient(135deg, var(--primary) 0%, #FF6B35 100%);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition);
            letter-spacing: 0.5px;
            font-family: inherit;
        }

        .form-submit:hover {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #E8551F 100%);
            box-shadow: 0 8px 28px rgba(255, 90, 31, 0.4);
            transform: translateY(-2px);
        }

        /* ============ FOOTER ============ */
        .footer {
            background: #151518;
            padding: 50px 0 30px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: -1px;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
            max-width: 300px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.8);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 16px;
        }

        .footer-contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-contact-list li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact-icon {
            width: 16px;
            text-align: center;
            flex-shrink: 0;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }

        .footer-social-link {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
            font-size: 14px;
        }

        .footer-social-link:hover {
            background: var(--primary);
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-text {
                max-width: 100%;
                margin: 0 auto;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-stats {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                gap: 12px;
            }
            .hero-stat-card {
                flex: 1 1 200px;
                min-width: 180px;
                justify-content: center;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-card.featured {
                grid-column: span 2;
                flex-direction: column;
                align-items: flex-start;
            }
            .service-card.featured .service-img-wrap {
                width: 100%;
                height: 160px;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .contact-wrapper {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .contact-info {
                text-align: center;
            }
            .contact-info .section-desc {
                margin: 0 auto;
            }
            .contact-trust {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 60px;
                --nav-height: 64px;
            }
            .nav {
                padding: 0 20px;
            }
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 100px 0 50px;
            }
            .hero-title {
                font-size: 32px;
                line-height: 1.3;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-stats {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-stat-card {
                justify-content: flex-start;
            }
            .section-title {
                font-size: 26px;
                line-height: 1.3;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .metric-card {
                padding: 20px 16px;
                gap: 12px;
            }
            .metric-number {
                font-size: 28px;
            }
            .metric-icon-wrap {
                width: 38px;
                height: 38px;
                font-size: 18px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .service-card.featured {
                grid-column: span 1;
            }
            .comparison-card {
                padding: 28px 20px;
            }
            .comparison-card.new::after {
                right: -32px;
                font-size: 10px;
                padding: 4px 30px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .contact-form-card {
                padding: 28px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: center;
            }
            .footer-brand {
                align-items: center;
            }
            .footer-desc {
                max-width: 100%;
                text-align: center;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-contact-list li {
                justify-content: center;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-stat-card {
                padding: 14px 16px;
                gap: 10px;
            }
            .hero-stat-number {
                font-size: 24px;
            }
            .hero-stat-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .metrics-grid {
                gap: 10px;
            }
            .metric-card {
                padding: 16px 14px;
                gap: 8px;
            }
            .metric-number {
                font-size: 24px;
            }
            .metric-label {
                font-size: 12px;
            }
            .section-title {
                font-size: 22px;
            }
            .comparison-card-title {
                font-size: 18px;
            }
            .comparison-list li {
                font-size: 13px;
                padding: 10px 12px;
            }
        }

        /* ============ ANIMATIONS ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .count-up {
            display: inline-block;
        }