/* roulang page: index */
:root {
            --bg-deep: #08080f;
            --bg-surface: #0f0f1a;
            --bg-card: #14141f;
            --bg-card-hover: #1a1a2a;
            --bg-nav: rgba(10, 10, 18, 0.88);
            --text-primary: #e8e8f2;
            --text-secondary: #b0b0c8;
            --text-weak: #7878a0;
            --accent-cyan: #00d4ff;
            --accent-purple: #8b5cf6;
            --accent-green: #00ffc8;
            --accent-pink: #f472b6;
            --accent-orange: #fb923c;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-glow: rgba(0, 212, 255, 0.25);
            --border-purple: rgba(139, 92, 246, 0.3);
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.55), 0 8px 32px rgba(0, 212, 255, 0.08);
            --shadow-glow-cyan: 0 0 40px rgba(0, 212, 255, 0.15), 0 0 80px rgba(0, 212, 255, 0.05);
            --shadow-glow-purple: 0 0 40px rgba(139, 92, 246, 0.15), 0 0 80px rgba(139, 92, 246, 0.05);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s ease;
            --transition-bounce: 0.32s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', 'Monaco', monospace;
            --max-width: 1260px;
            --header-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 12% 8%, rgba(0, 212, 255, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 78% 18%, rgba(139, 92, 246, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 50%, rgba(0, 255, 200, 0.02) 0%, transparent 60%);
            background-attachment: fixed;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            background: none;
            font-size: inherit;
        }
        input {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: var(--bg-nav);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(8, 8, 15, 0.94);
            border-bottom-color: var(--border-glow);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 28px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            font-weight: 900;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
            transition: box-shadow var(--transition-fast);
        }
        .logo-icon:hover {
            box-shadow: 0 0 32px rgba(0, 212, 255, 0.5);
        }
        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--accent-cyan);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-links a {
            display: block;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links a.nav-cta {
            background: var(--accent-cyan);
            color: #000;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: 24px;
            transition: all var(--transition-bounce);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.25);
        }
        .nav-links a.nav-cta:hover {
            background: #00e0ff;
            box-shadow: 0 0 28px rgba(0, 212, 255, 0.45);
            transform: translateY(-1px);
            color: #000;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
            overflow: hidden;
            background: linear-gradient(180deg, rgba(8, 8, 15, 0.3) 0%, var(--bg-deep) 100%);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            filter: brightness(0.5) saturate(1.3);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background:
                radial-gradient(ellipse at 30% 25%, rgba(0, 212, 255, 0.12) 0%, transparent 50%),
                radial-gradient(ellipse at 65% 60%, rgba(139, 92, 246, 0.14) 0%, transparent 50%),
                linear-gradient(180deg, rgba(8, 8, 15, 0.2) 0%, rgba(8, 8, 15, 0.85) 70%, var(--bg-deep) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            padding: 40px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid var(--border-glow);
            border-radius: 30px;
            padding: 7px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent-cyan);
            margin-bottom: 22px;
            animation: pulseBadge 2.8s ease-in-out infinite;
        }
        @keyframes pulseBadge {
            0%,
            100% {
                box-shadow: 0 0 12px rgba(0, 212, 255, 0.15);
            }
            50% {
                box-shadow: 0 0 24px rgba(0, 212, 255, 0.35);
            }
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: dotBlink 1.2s ease-in-out infinite;
        }
        @keyframes dotBlink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero-section h1 {
            font-size: clamp(2.6rem, 5.5vw, 4.2rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero-section h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 560px;
            line-height: 1.6;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-bounce);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--accent-cyan);
            color: #000;
            box-shadow: 0 0 24px rgba(0, 212, 255, 0.3);
        }
        .btn-primary:hover {
            background: #00e5ff;
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
            transform: translateY(-2px);
            color: #000;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.25);
        }
        .btn-outline:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.06);
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.12);
            color: #fff;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-subtle);
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-cyan);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
        }
        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-top: 2px;
        }

        /* ========== SECTIONS COMMON ========== */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 10px;
            padding: 5px 14px;
            border-radius: 20px;
            background: rgba(0, 212, 255, 0.06);
            border: 1px solid rgba(0, 212, 255, 0.15);
        }
        .section-title {
            font-size: clamp(2rem, 3.5vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            color: #fff;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            transition: all var(--transition-fast);
        }
        .feature-icon.cyan {
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-cyan);
        }
        .feature-icon.purple {
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent-purple);
        }
        .feature-icon.green {
            background: rgba(0, 255, 200, 0.1);
            color: var(--accent-green);
        }
        .feature-icon.pink {
            background: rgba(244, 114, 182, 0.1);
            color: var(--accent-pink);
        }
        .feature-icon.orange {
            background: rgba(251, 146, 60, 0.1);
            color: var(--accent-orange);
        }
        .feature-icon.cyan2 {
            background: rgba(0, 212, 255, 0.08);
            color: #5ee4ff;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: #fff;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* ========== SERVICES ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--border-purple);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .service-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }
        .service-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: #fff;
        }
        .service-card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }
        .service-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }
        .tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-fast);
        }
        .tag:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 212, 255, 0.05);
        }
        .tag.active-tag {
            background: rgba(0, 212, 255, 0.1);
            border-color: var(--border-glow);
            color: var(--accent-cyan);
        }

        /* ========== STATS / DATA SECTION ========== */
        .stats-section {
            position: relative;
            background: var(--bg-surface);
            overflow: hidden;
        }
        .stats-section .section-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            opacity: 0.18;
        }
        .stats-section .section-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.4) saturate(0.6);
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: rgba(20, 20, 31, 0.8);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            backdrop-filter: blur(8px);
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-2px);
        }
        .stat-card .stat-value {
            font-size: 2.6rem;
            font-weight: 800;
            font-family: var(--font-mono);
            color: var(--accent-cyan);
            letter-spacing: -0.03em;
            line-height: 1;
        }
        .stat-card .stat-value.purple {
            color: var(--accent-purple);
        }
        .stat-card .stat-value.green {
            color: var(--accent-green);
        }
        .stat-card .stat-value.pink {
            color: var(--accent-pink);
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-top: 8px;
        }

        /* ========== PROCESS / BRACKET ========== */
        .process-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            counter-reset: step;
            position: relative;
        }
        .process-item {
            flex: 1 1 220px;
            text-align: center;
            position: relative;
            padding: 20px 16px;
            counter-increment: step;
        }
        .process-item::after {
            content: '';
            position: absolute;
            top: 48px;
            right: -12px;
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, var(--border-glow), transparent);
            opacity: 0.5;
        }
        .process-item:last-child::after {
            display: none;
        }
        .process-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--border-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            transition: all var(--transition-smooth);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.08);
        }
        .process-item:hover .process-num {
            background: var(--accent-cyan);
            color: #000;
            box-shadow: 0 0 28px rgba(0, 212, 255, 0.35);
        }
        .process-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
            color: #fff;
        }
        .process-item p {
            font-size: 0.82rem;
            color: var(--text-weak);
            line-height: 1.45;
        }

        /* ========== CONTENT CARDS ========== */
        .content-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .content-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .content-card:hover {
            border-color: var(--border-purple);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .content-card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-subtle);
        }
        .content-card-body {
            padding: 20px;
        }
        .content-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: #fff;
        }
        .content-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .content-card-meta {
            display: flex;
            gap: 14px;
            font-size: 0.75rem;
            color: var(--text-weak);
            margin-top: 10px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-surface);
        }
        .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-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.12);
        }
        .faq-item.open {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow-cyan);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.98rem;
            color: #fff;
            background: none;
            cursor: pointer;
            text-align: left;
            transition: color var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .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;
            font-size: 0.8rem;
            transition: all var(--transition-fast);
            color: var(--text-secondary);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            overflow: hidden;
            padding: 90px 0;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .cta-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.3;
            filter: brightness(0.35) saturate(1.2);
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(8, 8, 15, 0.85) 0%, rgba(20, 20, 31, 0.75) 100%);
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-content p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.6;
        }
        .cta-content .btn {
            font-size: 1rem;
            padding: 15px 34px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
        }
        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 16px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-weak);
            flex-basis: 100%;
            text-align: center;
            margin-top: 8px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-item::after {
                right: -6px;
                width: 16px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(12, 12, 22, 0.97);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                padding: 90px 28px 30px;
                gap: 4px;
                transition: right var(--transition-smooth);
                border-left: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                width: 100%;
            }
            .mobile-toggle {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .content-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .process-list {
                flex-direction: column;
                gap: 8px;
            }
            .process-item {
                flex: none;
                display: flex;
                align-items: center;
                gap: 16px;
                text-align: left;
                padding: 12px 0;
            }
            .process-item::after {
                display: none;
            }
            .process-num {
                margin: 0;
                flex-shrink: 0;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-value {
                font-size: 1.4rem;
            }
            .section {
                padding: 50px 0;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-value {
                font-size: 2rem;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .logo-text {
                font-size: 1rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .service-card-img {
                height: 150px;
            }
            .content-card-img {
                height: 140px;
            }
        }
        @media (max-width: 380px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 12px;
            }
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 998;
            background: rgba(0, 0, 0, 0.5);
        }
        .mobile-menu-overlay.show {
            display: block;
        }