/* roulang page: index */
:root {
            --red: #E63946;
            --red-hover: #FF5A5F;
            --cyan: #00F0FF;
            --cyan-dim: rgba(0, 240, 255, 0.15);
            --cyan-glow: rgba(0, 240, 255, 0.25);
            --deep-black: #0B0C10;
            --bg-dark: #1A1B1F;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-input: #25262A;
            --text-primary: #E8E8EC;
            --text-secondary: #9A9BA6;
            --text-weak: #6B6C75;
            --border-subtle: rgba(0, 240, 255, 0.12);
            --border-cyan: rgba(0, 240, 255, 0.35);
            --radius-card-lg: 16px;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-input: 6px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 18px 40px rgba(0, 240, 255, 0.15);
            --shadow-glow: 0 0 60px rgba(0, 240, 255, 0.08);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Menlo', 'Courier New', monospace;
            --max-width: 1280px;
            --nav-height: 64px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-dark);
            background-image:
                radial-gradient(ellipse at 20% 15%, rgba(0, 240, 255, 0.03) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 40%, rgba(230, 57, 70, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 80%, rgba(0, 240, 255, 0.02) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
            transition: all var(--transition-normal);
        }

        button {
            cursor: pointer;
        }

        input:focus-visible,
        textarea:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        /* ========== NAVIGATION ========== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 10, 12, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition-normal);
        }

        .nav.scrolled {
            background: rgba(10, 10, 12, 0.97);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #fff;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-accent {
            color: var(--cyan);
            font-weight: 900;
        }
        .nav-logo .logo-domain {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-weak);
            letter-spacing: 1px;
            margin-left: 4px;
            opacity: 0.7;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: var(--red);
            border-radius: var(--radius-btn);
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.3px;
        }

        .nav-cta:hover {
            background: var(--red-hover);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
            transform: translateY(-1px);
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            cursor: pointer;
            z-index: 1001;
            background: none;
            border: none;
            padding: 4px;
        }

        .nav-hamburger span {
            display: block;
            height: 2px;
            width: 100%;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(10, 10, 12, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }

        .nav-mobile-overlay.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }
        .nav-mobile-overlay a {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.5px;
            transition: color var(--transition-fast);
        }
        .nav-mobile-overlay a:hover {
            color: var(--cyan);
        }
        .nav-mobile-overlay .nav-cta-mobile {
            margin-top: 12px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            background: var(--red);
            border-radius: var(--radius-btn);
            letter-spacing: 0.3px;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            filter: saturate(0.6) brightness(0.7);
            pointer-events: none;
        }

        .hero-glow {
            position: absolute;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.07) 0%, transparent 70%);
            top: -100px;
            right: -150px;
            z-index: 0;
            pointer-events: none;
            animation: heroGlowPulse 8s ease-in-out infinite;
        }

        @keyframes heroGlowPulse {
            0%,
            100% {
                transform: scale(1);
                opacity: 0.7;
            }
            50% {
                transform: scale(1.25);
                opacity: 0.35;
            }
        }

        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 24px;
        }

        .hero-text h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .hero-text h1 .hl-cyan {
            color: var(--cyan);
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 440px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--red);
            border-radius: var(--radius-btn);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--red-hover);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
            transform: translateY(-2px);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 27px;
            font-size: 15px;
            font-weight: 600;
            color: var(--cyan);
            background: transparent;
            border: 1.5px solid var(--cyan);
            border-radius: var(--radius-btn);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-ghost:hover {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 24px rgba(0, 240, 255, 0.2);
            border-color: rgba(0, 240, 255, 0.6);
        }

        .hero-dashboard {
            position: relative;
            background: rgba(11, 12, 16, 0.75);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card-lg);
            padding: 28px 24px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            box-shadow: var(--shadow-card), var(--shadow-glow);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-dashboard .dash-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-dashboard .dash-metric {
            flex: 1;
            min-width: 100px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: 10px;
            padding: 16px 14px;
            text-align: center;
        }
        .hero-dashboard .dash-metric .dash-num {
            font-family: var(--font-mono);
            font-size: 38px;
            font-weight: 800;
            color: var(--cyan);
            line-height: 1;
            letter-spacing: -1px;
        }
        .hero-dashboard .dash-metric .dash-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 6px;
            letter-spacing: 0.5px;
        }
        .hero-dashboard .dash-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: 20px;
            padding: 5px 12px;
            letter-spacing: 0.5px;
            align-self: flex-start;
        }

        .hero-dashboard .dash-status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #00E676;
            box-shadow: 0 0 8px #00E676;
            animation: dotPulse 2s ease-in-out infinite;
        }
        @keyframes dotPulse {
            0%,
            100% {
                box-shadow: 0 0 8px #00E676;
            }
            50% {
                box-shadow: 0 0 18px #00E676, 0 0 30px rgba(0, 230, 118, 0.5);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 100px 0;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
            border-left: 3px solid var(--cyan);
            padding-left: 10px;
        }
        .section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .section .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        /* ========== METRICS CARDS ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .metric-card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-slow);
            cursor: default;
            position: relative;
            overflow: hidden;
        }
        .metric-card::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -40%;
            width: 180%;
            height: 180%;
            background: radial-gradient(circle at center, rgba(0, 240, 255, 0.04) 0%, transparent 65%);
            opacity: 0;
            transition: opacity var(--transition-slow);
            pointer-events: none;
        }
        .metric-card:hover {
            border-color: var(--border-cyan);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .metric-card:hover::before {
            opacity: 1;
        }
        .metric-card .metric-num {
            font-family: var(--font-mono);
            font-size: 56px;
            font-weight: 800;
            color: var(--cyan);
            line-height: 1;
            letter-spacing: -2px;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .metric-card .metric-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            position: relative;
            z-index: 1;
        }
        .metric-card .metric-desc {
            font-size: 13px;
            color: var(--text-weak);
            position: relative;
            z-index: 1;
        }

        /* ========== SERVICES ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px 22px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            overflow: hidden;
        }
        .service-card::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            border: 1px solid transparent;
            transition: border-color var(--transition-slow);
            pointer-events: none;
            z-index: 2;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .service-card:hover::after {
            border-color: rgba(0, 240, 255, 0.35);
        }
        .service-card .svc-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(11, 12, 16, 0.8);
            border: 1.5px solid rgba(0, 240, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            overflow: hidden;
        }
        .service-card .svc-icon-wrap img {
            width: 32px;
            height: 32px;
            object-fit: contain;
            opacity: 0.85;
            filter: brightness(1.2) saturate(1.4);
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin: 0;
            position: relative;
            z-index: 1;
        }
        .service-card .svc-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
            position: relative;
            z-index: 1;
        }
        .service-card .svc-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            position: relative;
            z-index: 1;
        }
        .service-card .svc-link:hover {
            gap: 8px;
            color: #fff;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            gap: 0;
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 60px;
            right: 60px;
            height: 2px;
            border-top: 2px dashed rgba(0, 240, 255, 0.3);
            z-index: 0;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }
        .step-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            border: 2.5px solid var(--cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--cyan);
            background: var(--bg-dark);
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            transition: all var(--transition-normal);
        }
        .step-item:hover .step-circle {
            background: rgba(0, 240, 255, 0.08);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.25);
            border-width: 3px;
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
        }
        .step-item .step-desc {
            font-size: 13px;
            color: var(--text-weak);
            max-width: 180px;
            line-height: 1.5;
        }

        /* ========== COMPARISON ========== */
        .comparison-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .comp-card {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-slow);
        }
        .comp-card.traditional {
            border-left: 4px solid rgba(255, 255, 255, 0.2);
            opacity: 0.85;
        }
        .comp-card.smart {
            border-left: 4px solid var(--cyan);
            box-shadow: var(--shadow-card), 0 0 40px rgba(0, 240, 255, 0.06);
        }
        .comp-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comp-card h3 .comp-badge {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .comp-card.traditional .comp-badge {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-weak);
        }
        .comp-card.smart .comp-badge {
            background: rgba(0, 240, 255, 0.12);
            color: var(--cyan);
        }
        .comp-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .comp-bar-label {
            font-size: 13px;
            color: var(--text-secondary);
            min-width: 55px;
            flex-shrink: 0;
        }
        .comp-bar-track {
            flex: 1;
            height: 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 5px;
            overflow: hidden;
        }
        .comp-bar-fill {
            height: 100%;
            border-radius: 5px;
            transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .comp-card.traditional .comp-bar-fill {
            background: rgba(255, 255, 255, 0.3);
        }
        .comp-card.smart .comp-bar-fill {
            background: var(--cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
        }
        .comp-bar-val {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            min-width: 36px;
            text-align: right;
        }
        .comp-card.smart .comp-bar-val {
            color: var(--cyan);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .faq-item.open {
            border-color: var(--border-cyan);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.08);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            gap: 12px;
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.3px;
            transition: color var(--transition-fast);
        }
        .faq-item.open .faq-question {
            color: var(--cyan);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            transition: transform var(--transition-normal);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--deep-black);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            filter: brightness(0.5);
            pointer-events: none;
            z-index: 0;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-inner .cta-desc {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 700px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input,
        .cta-form textarea {
            flex: 1;
            min-width: 160px;
            padding: 14px 16px;
            background: var(--bg-input);
            color: #fff;
            border-radius: var(--radius-input);
            border: 1px solid transparent;
            border-bottom: 2px solid rgba(0, 240, 255, 0.3);
            font-size: 15px;
            transition: all var(--transition-normal);
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            border-bottom-color: var(--cyan);
            background: #2A2B30;
            outline: none;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .cta-form textarea {
            min-width: 100%;
            resize: vertical;
            min-height: 80px;
        }
        .cta-form .btn-submit {
            min-width: 100%;
            padding: 15px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--red);
            border-radius: var(--radius-btn);
            cursor: pointer;
            letter-spacing: 0.5px;
            transition: all var(--transition-normal);
            border: none;
        }
        .cta-form .btn-submit:hover {
            background: var(--red-hover);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.5);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--deep-black);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-col p,
        .footer-col a {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            display: block;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--cyan);
        }
        .footer-bottom {
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
                padding: 40px 24px;
            }
            .hero-text h1 {
                font-size: 38px;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-dashboard {
                max-width: 500px;
                margin: 0 auto;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-block {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 24px;
            }
            .process-steps::before {
                display: none;
            }
            .step-item {
                flex: 1 1 140px;
                min-width: 120px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .section h2 {
                font-size: 26px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .hero-text h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-dashboard .dash-num {
                font-size: 28px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-card .metric-num {
                font-size: 40px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .comparison-block {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .comp-card {
                padding: 20px 16px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 20px;
            }
            .step-item {
                flex-direction: row;
                gap: 16px;
                text-align: left;
                width: 100%;
                max-width: 320px;
            }
            .step-circle {
                width: 50px;
                height: 50px;
                font-size: 22px;
            }
            .step-item h3 {
                font-size: 16px;
            }
            .step-item .step-desc {
                max-width: 100%;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .nav-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 26px;
            }
            .hero-dashboard {
                padding: 16px 12px;
            }
            .hero-dashboard .dash-metric {
                padding: 10px 8px;
            }
            .hero-dashboard .dash-num {
                font-size: 22px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-card {
                padding: 18px 12px;
            }
            .metric-card .metric-num {
                font-size: 32px;
            }
            .btn-primary,
            .btn-ghost {
                padding: 12px 20px;
                font-size: 14px;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .nav-logo {
                font-size: 17px;
            }
            .nav-logo .logo-domain {
                font-size: 9px;
            }
        }