/* roulang page: index */
:root {
            --brand-orange: #FF6B2B;
            --brand-red: #E62B4A;
            --brand-gradient: linear-gradient(135deg, #FF6B2B 0%, #E62B4A 100%);
            --brand-gradient-hover: linear-gradient(150deg, #FF7D45 0%, #F03D5A 100%);
            --brand-gradient-subtle: linear-gradient(135deg, rgba(255, 107, 43, 0.08) 0%, rgba(230, 43, 74, 0.08) 100%);
            --accent-purple: #7C3AED;
            --accent-purple-light: rgba(124, 58, 237, 0.1);
            --deep-charcoal: #1E1E1E;
            --text-dark: #2D2D2D;
            --text-body: #4A4A4A;
            --text-muted: #7A7A8A;
            --white: #FFFFFF;
            --light-bg: #F5F6FA;
            --lighter-bg: #F9FAFC;
            --card-bg: #FFFFFF;
            --border-subtle: rgba(0, 0, 0, 0.06);
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 40px rgba(230, 43, 74, 0.12);
            --shadow-button: 0 4px 16px rgba(230, 43, 74, 0.25);
            --shadow-button-hover: 0 8px 28px rgba(230, 43, 74, 0.38);
            --radius-xl: 24px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-xs: 6px;
            --font-h1: 48px;
            --font-h2: 36px;
            --font-h3: 24px;
            --font-body: 16px;
            --font-small: 14px;
            --font-mega: 64px;
            --nav-height: 72px;
            --max-width: 1200px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::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: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            font-size: var(--font-body);
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--white);
            overflow-x: hidden;
            min-width: 320px;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            font-size: inherit;
            transition: all var(--transition-normal);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--brand-orange);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input,
        textarea {
            font-family: inherit;
            font-size: var(--font-body);
            border: 1.5px solid #E0E0E8;
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            width: 100%;
            background: var(--white);
            transition: all var(--transition-normal);
            color: var(--text-dark);
        }
        input:focus,
        textarea:focus {
            outline: none;
            border-color: transparent;
            box-shadow: 0 0 0 3px rgba(255, 107, 43, 0.18), 0 0 0 1px var(--brand-orange);
            background: #FFFAF8;
        }
        input::placeholder,
        textarea::placeholder {
            color: #B0B0BA;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: all var(--transition-normal);
            background: rgba(30, 30, 30, 0.28);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-header.scrolled {
            background: rgba(30, 30, 30, 0.94);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.18);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 1001;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            font-weight: 800;
            letter-spacing: -1px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-wrap a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
        }
        .logo-wrap a:hover {
            opacity: 0.9;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
            transition: width var(--transition-normal);
        }
        .nav-links a:hover,
        .nav-links a:active {
            color: #fff;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 50px;
            background: var(--brand-gradient);
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.4px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-button);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            box-shadow: var(--shadow-button-hover);
            transform: translateY(-2px);
            background: var(--brand-gradient-hover);
        }
        .nav-cta-btn::after {
            display: none !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 3px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -6px);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(18, 18, 22, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }
        .mobile-menu-overlay.active {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu-overlay a {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            padding: 14px 32px;
            border-radius: 50px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            display: block;
            text-align: center;
        }
        .mobile-menu-overlay a:hover,
        .mobile-menu-overlay a:active {
            background: rgba(255, 255, 255, 0.08);
            color: var(--brand-orange);
        }
        .mobile-menu-overlay .mobile-cta {
            background: var(--brand-gradient);
            color: #fff !important;
            margin-top: 8px;
            box-shadow: var(--shadow-button);
        }
        .mobile-menu-overlay .mobile-cta:hover {
            background: var(--brand-gradient-hover);
            color: #fff !important;
            box-shadow: var(--shadow-button-hover);
        }

        /* ========== HERO ========== */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--deep-charcoal);
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.45;
            z-index: 0;
        }
        .hero-gradient-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(30, 30, 30, 0.82) 0%, rgba(20, 15, 18, 0.7) 40%, rgba(230, 43, 74, 0.18) 100%);
            z-index: 1;
        }
        .hero-geo-shapes {
            position: absolute;
            inset: 0;
            z-index: 1;
            pointer-events: none;
            overflow: hidden;
        }
        .hero-geo-shapes .shape {
            position: absolute;
            border-radius: 50%;
            opacity: 0.14;
        }
        .hero-geo-shapes .shape-1 {
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, #FF6B2B 0%, transparent 70%);
            top: -80px;
            right: -60px;
        }
        .hero-geo-shapes .shape-2 {
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, #E62B4A 0%, transparent 70%);
            bottom: -40px;
            left: -50px;
        }
        .hero-geo-shapes .shape-3 {
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, #7C3AED 0%, transparent 70%);
            top: 40%;
            left: 55%;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .hero-content h1 {
            font-size: var(--font-h1);
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #FFFFFF 0%, #FFD4C0 50%, #FFB8A0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-content .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 36px;
            max-width: 540px;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 15px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.4px;
            transition: all var(--transition-normal);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--brand-gradient);
            color: #fff;
            box-shadow: var(--shadow-button);
            border: none;
        }
        .btn-primary:hover {
            background: var(--brand-gradient-hover);
            box-shadow: var(--shadow-button-hover);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .btn-lg {
            padding: 17px 40px;
            font-size: 18px;
            letter-spacing: 0.6px;
        }

        /* ========== SECTIONS GENERAL ========== */
        .section {
            padding: 90px 0;
        }
        .section-light {
            background: var(--lighter-bg);
        }
        .section-white {
            background: var(--white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: var(--font-h2);
            line-height: 1.3;
            font-weight: 700;
            color: var(--deep-charcoal);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .section-header .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: var(--brand-gradient-subtle);
            color: var(--brand-red);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.8px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        /* ========== SOLUTIONS CARDS ========== */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .solution-card {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            padding: 36px 28px 30px;
            box-shadow: var(--shadow-card);
            border: 1.5px solid transparent;
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-gradient);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .solution-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230, 43, 74, 0.15);
        }
        .solution-card:hover::before {
            opacity: 1;
        }
        .solution-card-img {
            width: 100%;
            height: 180px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 20px;
            background: var(--lighter-bg);
            flex-shrink: 0;
        }
        .solution-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .solution-card:hover .solution-card-img img {
            transform: scale(1.05);
        }
        .solution-card-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--brand-gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--brand-orange);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .solution-card h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--deep-charcoal);
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }
        .solution-card p {
            font-size: var(--font-body);
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .solution-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-red);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }
        .solution-card .card-link:hover {
            color: var(--brand-orange);
            gap: 10px;
        }
        .solution-card .card-link i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }
        .solution-card .card-link:hover i {
            transform: translateX(3px);
        }

        /* ========== RESULTS / DATA BADGES ========== */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 40px;
        }
        .data-badge {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-normal);
        }
        .data-badge:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .data-badge .badge-number {
            font-size: var(--font-mega);
            font-weight: 800;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
            margin-bottom: 8px;
            display: inline-block;
        }
        .data-badge .badge-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--deep-charcoal);
            letter-spacing: 0.3px;
        }
        .data-badge .badge-desc {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .results-note {
            text-align: center;
            font-size: 15px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 50px;
        }
        .process-step {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-normal);
            position: relative;
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .process-step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .process-step h4 {
            font-weight: 700;
            color: var(--deep-charcoal);
            margin-bottom: 6px;
            font-size: 17px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-normal);
            position: relative;
            background: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 107, 43, 0.02) 100%);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .testimonial-quote-icon {
            font-size: 48px;
            color: var(--brand-orange);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 8px;
            font-family: Georgia, serif;
        }
        .testimonial-card blockquote {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-style: italic;
            border: none;
            padding: 0;
            quotes: none;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-author img {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
            border: 2px solid var(--border-subtle);
        }
        .testimonial-author-info .author-name {
            font-weight: 700;
            color: var(--deep-charcoal);
            font-size: 15px;
        }
        .testimonial-author-info .author-role {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--brand-gradient);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            top: -120px;
            right: -100px;
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            bottom: -80px;
            left: -60px;
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: var(--font-h2);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .cta-inner .cta-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 480px;
            margin: 0 auto 24px;
        }
        .cta-form input,
        .cta-form textarea {
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 14px 20px;
            font-size: 15px;
            backdrop-filter: blur(4px);
        }
        .cta-form textarea {
            border-radius: 20px;
            resize: vertical;
            min-height: 90px;
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
        }
        .btn-cta-submit {
            width: 100%;
            padding: 16px;
            border-radius: 50px;
            background: #fff;
            color: var(--brand-red);
            font-weight: 700;
            font-size: 17px;
            letter-spacing: 0.5px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
        }
        .btn-cta-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.28);
            background: #FFF8F5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        .faq-item.active {
            box-shadow: var(--shadow-card-hover);
            border-left: 4px solid var(--brand-orange);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--deep-charcoal);
            text-align: left;
            cursor: pointer;
            transition: color var(--transition-fast);
            letter-spacing: 0.2px;
        }
        .faq-question:hover {
            color: var(--brand-red);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--brand-orange);
            transition: transform var(--transition-normal);
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            background: var(--brand-gradient);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--deep-charcoal);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-wrap {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--brand-orange);
        }
        .footer-social-icons {
            display: flex;
            gap: 12px;
            margin-top: 8px;
            flex-wrap: wrap;
        }
        .footer-social-icons a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: all var(--transition-fast);
        }
        .footer-social-icons a:hover {
            background: var(--brand-gradient);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.3px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --font-h1: 40px;
                --font-h2: 30px;
                --font-h3: 21px;
                --font-mega: 52px;
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .results-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .data-badge {
                padding: 24px 16px;
            }
            .data-badge .badge-number {
                font-size: 44px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --font-h1: 32px;
                --font-h2: 26px;
                --font-h3: 20px;
                --font-mega: 44px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-section {
                min-height: 85vh;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
                padding: 40px 0;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .solutions-grid {
                grid-template-columns: 1fr;
                max-width: 440px;
                margin: 0 auto;
            }
            .results-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .section {
                padding: 60px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .btn {
                padding: 13px 24px;
                font-size: 15px;
            }
            .btn-lg {
                padding: 15px 30px;
                font-size: 16px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .data-badge .badge-number {
                font-size: 38px;
            }
            .data-badge {
                padding: 20px 12px;
            }
            .data-badge .badge-label {
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --font-h1: 28px;
                --font-h2: 23px;
                --font-h3: 18px;
                --font-mega: 36px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .hero-section {
                min-height: 80vh;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-content .hero-subtitle {
                font-size: 15px;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 12px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .results-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-badge .badge-number {
                font-size: 32px;
            }
            .data-badge .badge-label {
                font-size: 12px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .testimonial-card {
                padding: 22px 18px;
            }
            .cta-form input,
            .cta-form textarea {
                padding: 12px 16px;
                font-size: 14px;
            }
            .btn-cta-submit {
                padding: 14px;
                font-size: 15px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .solution-card {
                padding: 24px 18px 22px;
            }
            .solution-card-img {
                height: 140px;
            }
            .footer-social-icons a {
                width: 36px;
                height: 36px;
                font-size: 14px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
        }