/* roulang page: index */
:root {
            --primary: #106BFF;
            --primary-dark: #0A5AD0;
            --primary-light: #E8F1FF;
            --accent: #FF5E13;
            --accent-dark: #E54C00;
            --success: #0ECB81;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --text-heading: #0B1A36;
            --text-body: #2D3A4F;
            --text-muted: #6B7A90;
            --border-light: #E2E8F0;
            --border-input: #CBD5E1;
            --shadow-card: 0 4px 24px rgba(16, 107, 255, 0.06);
            --shadow-card-hover: 0 8px 40px rgba(16, 107, 255, 0.12);
            --shadow-lg: 0 20px 60px rgba(11, 26, 54, 0.10);
            --radius: 14px;
            --radius-btn: 8px;
            --radius-pill: 50px;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-section: 120px;
            --spacing-section-mobile: 80px;
        }

        *,
        *::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-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            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;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== NAVIGATION ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(11, 26, 54, 0.06);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text-heading);
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
            border-radius: 10px;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-pill);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(16, 107, 255, 0.28);
        }

        .nav-cta-btn {
            display: inline-flex !important;
            align-items: center;
            gap: 6px;
            padding: 10px 22px !important;
            background: var(--accent) !important;
            color: #fff !important;
            border-radius: var(--radius-btn) !important;
            font-weight: 600 !important;
            font-size: 0.9rem !important;
            box-shadow: 0 4px 16px rgba(255, 94, 19, 0.3) !important;
            transition: all var(--transition-smooth) !important;
            margin-left: 8px;
        }

        .nav-cta-btn:hover {
            background: var(--accent-dark) !important;
            box-shadow: 0 6px 22px rgba(255, 94, 19, 0.4) !important;
            transform: translateY(-2px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1100;
            background: transparent;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-heading);
            border-radius: 2px;
            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-menu {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 1050;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-smooth);
        }

        .mobile-menu.active {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu a {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-heading);
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu .mobile-cta {
            background: var(--accent) !important;
            color: #fff !important;
            border-radius: var(--radius-btn) !important;
            padding: 16px 32px !important;
            margin-top: 8px;
            box-shadow: 0 6px 20px rgba(255, 94, 19, 0.35);
        }

        /* ========== HERO ========== */
        .hero {
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 80px;
            background: linear-gradient(175deg, #F0F5FF 0%, #FFFFFF 40%, #F7F9FC 100%);
            position: relative;
            overflow: hidden;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(16, 107, 255, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 94, 19, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

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

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(14, 203, 129, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(14, 203, 129, 0);
            }
        }

        .hero h1 {
            font-size: 2.75rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-heading);
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
            display: inline-block;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(16, 107, 255, 0.15);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 460px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-btn);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 18px rgba(16, 107, 255, 0.32);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(16, 107, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-ghost:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 18px rgba(16, 107, 255, 0.25);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(255, 94, 19, 0.32);
            font-size: 1.05rem;
            padding: 16px 36px;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 8px 28px rgba(255, 94, 19, 0.42);
            transform: translateY(-3px);
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual img {
            width: 100%;
            max-width: 520px;
            border-radius: 18px;
            box-shadow: var(--shadow-lg);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%,
            100% {
                transform: translateY(0);
            }
            25% {
                transform: translateY(-12px);
            }
            50% {
                transform: translateY(-6px);
            }
            75% {
                transform: translateY(-14px);
            }
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            inset: -20px;
            border-radius: 24px;
            background: linear-gradient(135deg, rgba(16, 107, 255, 0.08) 0%, rgba(255, 94, 19, 0.04) 100%);
            z-index: -1;
            animation: float 6s ease-in-out infinite;
            animation-delay: -3s;
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-header {
            margin-bottom: 56px;
            max-width: 600px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-header p {
            color: var(--text-muted);
            margin-top: 12px;
            font-size: 1.05rem;
            line-height: 1.6;
        }

        /* ========== SOLUTIONS ========== */
        .solutions-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 24px;
            margin-bottom: 24px;
        }

        .solutions-grid.reverse {
            grid-template-columns: 5fr 7fr;
        }

        .solution-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .solution-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            flex-shrink: 0;
        }

        .solution-card .card-icon.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .solution-card .card-icon.orange {
            background: rgba(255, 94, 19, 0.1);
            color: var(--accent);
        }
        .solution-card .card-icon.green {
            background: rgba(14, 203, 129, 0.1);
            color: var(--success);
        }
        .solution-card .card-icon.purple {
            background: rgba(124, 58, 237, 0.1);
            color: #7C3AED;
        }

        .solution-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-heading);
            line-height: 1.3;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
            flex-grow: 1;
        }

        .solution-card .card-img {
            width: 100%;
            border-radius: 10px;
            height: 160px;
            object-fit: cover;
            margin-top: 8px;
        }

        .solution-card.large {
            padding: 40px 36px;
        }

        /* ========== RESULTS ========== */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .result-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .result-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .result-card .big-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.03em;
        }

        .result-card .big-number .unit {
            font-size: 1.4rem;
            font-weight: 600;
            margin-left: 2px;
        }

        .result-card .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            line-height: 1.4;
        }

        .result-card .accent-dot {
            position: absolute;
            top: 14px;
            right: 14px;
            width: 10px;
            height: 10px;
            background: var(--success);
            border-radius: 50%;
        }

        .results-bar-wrap {
            margin-top: 48px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .results-bar-label {
            font-weight: 600;
            color: var(--text-heading);
            white-space: nowrap;
            font-size: 0.95rem;
        }

        .results-bar {
            flex: 1;
            height: 10px;
            background: #E8ECF2;
            border-radius: 10px;
            overflow: hidden;
            min-width: 150px;
        }

        .results-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary) 0%, var(--success) 100%);
            border-radius: 10px;
            width: 87%;
            position: relative;
        }

        .results-bar-fill::after {
            content: '87%';
            position: absolute;
            right: -28px;
            top: -22px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--primary);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding: 12px 0 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .testimonials-scroll::-webkit-scrollbar {
            display: none;
        }

        .testimonial-card {
            flex: 0 0 calc(33.333% - 14px);
            min-width: 300px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            scroll-snap-align: start;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-mark {
            font-size: 2.5rem;
            color: rgba(16, 107, 255, 0.2);
            line-height: 1;
            font-weight: 700;
            font-family: Georgia, serif;
        }

        .testimonial-card .quote-text {
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
            flex-grow: 1;
        }

        .testimonial-card .client-info {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .testimonial-card .client-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #106BFF 0%, #7C3AED 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .testimonial-card .client-name {
            font-weight: 600;
            color: var(--text-heading);
            font-size: 0.9rem;
        }
        .testimonial-card .client-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
            list-style: none;
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--primary);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary-light);
        }

        .faq-item[open] summary::after {
            content: '−';
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item[open] summary {
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            animation: fadeInDown 0.35s ease;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== CTA CONTACT ========== */
        .cta-section {
            background: linear-gradient(160deg, #F0F5FF 0%, #E8F1FF 30%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(16, 107, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .cta-text h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-text p {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.6;
            margin-bottom: 28px;
        }

        .cta-form {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .cta-form h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
        }

        .input-group {
            position: relative;
        }

        .input-group input,
        .input-group textarea {
            width: 100%;
            padding: 12px 0;
            font-size: 0.95rem;
            color: var(--text-heading);
            background: transparent;
            border-bottom: 1px solid var(--border-input);
            transition: border-color var(--transition-fast);
            resize: none;
        }

        .input-group input:focus,
        .input-group textarea:focus {
            border-bottom-color: var(--primary);
        }

        .input-group input::placeholder,
        .input-group textarea::placeholder {
            color: #A0B4CC;
        }

        .cta-form .btn-accent {
            width: 100%;
            justify-content: center;
            margin-top: 6px;
        }

        .form-success-msg {
            display: none;
            text-align: center;
            color: var(--success);
            font-weight: 600;
            padding: 20px;
            font-size: 1rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0A1E3F;
            color: #A0B4CC;
            padding: 56px 0 32px;
        }

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

        .footer-brand .logo-wrap {
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            max-width: 280px;
        }

        .footer-links h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 16px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            color: #A0B4CC;
            padding: 6px 0;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-social .social-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #A0B4CC;
            transition: all var(--transition-fast);
            font-size: 1rem;
        }

        .footer-social .social-icon:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }

        .footer-bottom span {
            color: #A0B4CC;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1023px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual img {
                max-width: 380px;
                margin: 0 auto;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .section-header {
                max-width: 100%;
            }
            .section-header h2 {
                font-size: 1.65rem;
            }
            .solutions-grid,
            .solutions-grid.reverse {
                grid-template-columns: 1fr;
            }
            .results-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-card {
                flex: 0 0 calc(50% - 10px);
                min-width: 260px;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .cta-text h2 {
                font-size: 1.65rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .section {
                padding: var(--spacing-section-mobile) 0;
            }
            :root {
                --spacing-section: 80px;
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .hero {
                padding-top: calc(var(--nav-height) + 32px);
                padding-bottom: 48px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 1.85rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-visual img {
                max-width: 280px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .btn-accent {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .section-header h2 {
                font-size: 1.45rem;
            }
            .solution-card {
                padding: 24px 20px;
            }
            .solution-card.large {
                padding: 28px 22px;
            }
            .solution-card .card-img {
                height: 120px;
            }
            .results-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .result-card {
                padding: 20px 16px;
            }
            .result-card .big-number {
                font-size: 2.2rem;
            }
            .testimonial-card {
                flex: 0 0 85%;
                min-width: 240px;
            }
            .cta-form {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-social {
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .results-bar-wrap {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 18px;
            }
            :root {
                --spacing-section: 60px;
                --nav-height: 58px;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
            .faq-item summary {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.55rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .results-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .testimonial-card {
                flex: 0 0 90%;
                min-width: 200px;
            }
        }