/* roulang page: index */
:root {
            --color-primary: #00d4ff;
            --color-primary-glow: #00d4ff66;
            --color-secondary: #7b2fff;
            --color-secondary-glow: #7b2fff55;
            --color-accent: #ffb800;
            --color-accent-glow: #ffb80044;
            --color-bg-deep: #0a0a14;
            --color-bg-panel: #12121f;
            --color-bg-card: #1a1a2e;
            --color-bg-card-hover: #1f1f38;
            --color-text: #ffffff;
            --color-text-weak: #a0a0b8;
            --color-text-muted: #6b6b80;
            --color-border: #2a2a40;
            --color-border-light: #353550;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
            --shadow-glow-primary: 0 0 20px rgba(0, 212, 255, 0.25), 0 0 50px rgba(0, 212, 255, 0.1);
            --shadow-glow-secondary: 0 0 20px rgba(123, 47, 255, 0.25), 0 0 50px rgba(123, 47, 255, 0.1);
            --shadow-glow-accent: 0 0 20px rgba(255, 184, 0, 0.3), 0 0 50px rgba(255, 184, 0, 0.12);
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        *,
        *::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;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--color-bg-deep);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            font-size: 16px;
            letter-spacing: 0.01em;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-smooth);
        }
        button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
        }
        input {
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-fast);
        }
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            font-weight: 700;
        }
        hr {
            border: none;
            border-top: 1px solid var(--color-border);
            margin: 0;
        }

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

        /* ========== HEADER / NAV ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 10, 20, 0.78);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .header.scrolled {
            background: rgba(10, 10, 20, 0.92);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            border-bottom-color: rgba(255, 255, 255, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.45rem;
            color: var(--color-text);
            white-space: nowrap;
            letter-spacing: 0.03em;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            box-shadow: var(--shadow-glow-primary);
            flex-shrink: 0;
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 10px 16px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-weak);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: var(--color-primary);
            background: rgba(0, 212, 255, 0.08);
        }
        .nav-cta-btn {
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #fff;
            white-space: nowrap;
            box-shadow: var(--shadow-glow-primary);
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }
        .nav-cta-btn:hover {
            box-shadow: var(--shadow-glow-secondary);
            transform: translateY(-2px);
            filter: brightness(1.1);
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
            width: 40px;
            height: 32px;
            justify-content: center;
            align-items: center;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-text);
            border-radius: 3px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 10, 20, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding: 40px 24px;
            gap: 8px;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav .nav-link {
            font-size: 1.15rem;
            padding: 14px 24px;
            width: 100%;
            text-align: center;
            border-radius: var(--radius-md);
        }
        .mobile-nav .nav-cta-btn {
            margin-top: 16px;
            font-size: 1.1rem;
            padding: 14px 32px;
            width: 100%;
            text-align: center;
            border-radius: var(--radius-md);
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 20, 0.65) 0%, rgba(10, 10, 20, 0.82) 50%, rgba(10, 10, 20, 0.95) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--color-bg-deep), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            width: 100%;
        }
        .hero-badge {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            font-size: 0.9rem;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            margin-right: 6px;
            color: var(--color-accent);
        }
        .hero h1 {
            font-size: clamp(2.6rem, 5.5vw, 4.2rem);
            font-weight: 900;
            letter-spacing: 0.04em;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #fff;
            text-shadow: 0 0 60px rgba(0, 212, 255, 0.4), 0 0 120px rgba(123, 47, 255, 0.25);
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline;
        }
        .hero-subtitle {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: var(--color-text-weak);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.6;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            cursor: pointer;
            white-space: nowrap;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #fff;
            box-shadow: var(--shadow-glow-primary);
            border: none;
        }
        .btn-primary:hover {
            box-shadow: var(--shadow-glow-secondary);
            transform: translateY(-3px);
            filter: brightness(1.12);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.94);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            backdrop-filter: blur(6px);
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
            transform: translateY(-2px);
            background: rgba(0, 212, 255, 0.05);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #1a1a0a;
            box-shadow: var(--shadow-glow-accent);
            border: none;
            font-weight: 700;
        }
        .btn-accent:hover {
            box-shadow: 0 0 32px rgba(255, 184, 0, 0.45), 0 0 60px rgba(255, 184, 0, 0.18);
            transform: translateY(-3px);
            filter: brightness(1.08);
        }
        .btn-accent:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 24px;
            position: relative;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-label {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 212, 255, 0.08);
            color: var(--color-primary);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 800;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            color: #fff;
        }
        .section-desc {
            color: var(--color-text-weak);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.6;
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .feature-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            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: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            opacity: 0;
            transition: opacity var(--transition-smooth);
            border-radius: 0 0 4px 4px;
        }
        .feature-card:hover {
            background: var(--color-bg-card-hover);
            border-color: var(--color-border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg), var(--shadow-glow-primary);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(123, 47, 255, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-bottom: 20px;
            transition: all var(--transition-smooth);
        }
        .feature-card:hover .feature-icon {
            box-shadow: var(--shadow-glow-primary);
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: #fff;
        }
        .feature-card p {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ========== SERVICES ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .service-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-lg), var(--shadow-glow-secondary);
            transform: translateY(-5px);
        }
        .service-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .service-card-body {
            padding: 24px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
            width: fit-content;
        }
        .badge-hot {
            background: rgba(255, 80, 60, 0.15);
            color: #ff503c;
        }
        .badge-new {
            background: rgba(0, 212, 255, 0.12);
            color: var(--color-primary);
        }
        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 6px;
            color: #fff;
        }
        .service-card p {
            color: var(--color-text-weak);
            font-size: 0.93rem;
            line-height: 1.6;
            flex: 1;
        }
        .service-card .btn {
            margin-top: 16px;
            align-self: flex-start;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 22px;
            background: transparent;
            border: 1.5px solid var(--color-border-light);
            color: var(--color-text);
        }
        .service-card .btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(0, 212, 255, 0.05);
            box-shadow: var(--shadow-glow-primary);
        }

        /* ========== PROCESS ========== */
        .process-area {
            max-width: var(--max-width);
            margin: 0 auto;
            position: relative;
        }
        .process-line {
            display: none;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 28px 18px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
        }
        .process-step:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
            transform: translateY(-4px);
            background: var(--color-bg-card-hover);
        }
        .process-step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: var(--shadow-glow-primary);
        }
        .process-step h4 {
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            line-height: 1.5;
        }
        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            position: absolute;
            top: 50%;
            right: -14px;
            transform: translateY(-50%);
            z-index: 2;
            color: var(--color-primary);
            font-size: 1.3rem;
            opacity: 0.7;
            pointer-events: none;
        }
        .process-step:last-child .process-arrow {
            display: none;
        }

        /* ========== STATS ========== */
        .stats-section {
            background: var(--color-bg-panel);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            max-width: var(--max-width);
            margin: 0 auto;
            text-align: center;
        }
        .stat-item {
            padding: 20px;
        }
        .stat-number {
            font-size: clamp(2rem, 3.5vw, 3rem);
            font-weight: 900;
            letter-spacing: 0.03em;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-weak);
            font-weight: 500;
        }
        .stat-icon {
            font-size: 1.6rem;
            color: var(--color-accent);
            margin-bottom: 8px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--color-border-light);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            text-align: left;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            font-family: var(--font-heading);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-smooth);
            color: var(--color-text-weak);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: rgba(0, 212, 255, 0.15);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 90px 24px;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 20, 0.8);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: clamp(1.8rem, 3.2vw, 2.5rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .cta-content p {
            color: var(--color-text-weak);
            font-size: 1.05rem;
            margin-bottom: 30px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 28px;
            border: 2px solid var(--color-border-light);
            background: rgba(255, 255, 255, 0.04);
            color: #fff;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            backdrop-filter: blur(6px);
            transition: all var(--transition-fast);
        }
        .cta-input::placeholder {
            color: var(--color-text-muted);
        }
        .cta-input:focus {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow-primary);
            background: rgba(255, 255, 255, 0.07);
            outline: none;
        }

        /* ========== FOOTER ========== */
        .footer {
            background: var(--color-bg-panel);
            border-top: 1px solid var(--color-border);
            padding: 48px 24px 28px;
            text-align: center;
        }
        .footer-inner {
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 20px;
        }
        .footer-links a {
            color: var(--color-text-weak);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-copy {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            letter-spacing: 0.02em;
        }
        .footer-copy strong {
            color: var(--color-text-weak);
            font-weight: 600;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .process-arrow {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .section {
                padding: 60px 20px;
            }
            .hero {
                padding: 100px 20px 60px;
                min-height: 90vh;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
                border-radius: 24px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section {
                padding: 50px 16px;
            }
            .cta-section {
                padding: 60px 20px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-input {
                width: 100%;
                max-width: 360px;
            }
            .footer {
                padding: 36px 16px 20px;
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero {
                min-height: 85vh;
                padding: 90px 16px 40px;
            }
            .hero h1 {
                font-size: 1.7rem;
                letter-spacing: 0.02em;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 14px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .feature-card {
                padding: 22px 18px;
            }
            .service-card-body {
                padding: 18px 16px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .section {
                padding: 40px 14px;
            }
            .process-step {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .header-inner {
                gap: 12px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
        }