/* roulang page: index */
:root {
            --primary: #2A7DE1;
            --primary-hover: #1B6AC9;
            --primary-light: #EBF3FD;
            --accent: #2E7D32;
            --accent-light: #E8F5E9;
            --bg-light: #F4F8FC;
            --bg-white: #FFFFFF;
            --text-heading: #1A202C;
            --text-body: #2D3748;
            --text-muted: #718096;
            --text-light: #A0AEC0;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 28px rgba(0, 0, 0, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --spacing-3xl: 120px;
            --max-width: 1200px;
            --nav-height: 68px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
        }

        *,
        *::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-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg-white);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 20px;
            }
        }

        /* ========== NAVIGATION ========== */
        .nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            height: var(--nav-height);
            border-bottom: 1px solid transparent;
            transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
            display: flex;
            align-items: center;
        }

        .nav.scrolled {
            border-bottom-color: var(--border-light);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            white-space: nowrap;
            letter-spacing: 0.5px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--primary);
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            font-size: 17px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .nav-logo-icon::after {
            content: '';
            position: absolute;
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            bottom: 4px;
            right: 4px;
            opacity: 0.7;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a:focus-visible {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            margin-left: 8px;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }

        .nav-links a.nav-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            padding: 8px;
            border-radius: var(--radius-sm);
            z-index: 1001;
            transition: background var(--transition-fast);
        }

        .nav-hamburger:hover {
            background: var(--bg-light);
        }

        .nav-hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-heading);
            border-radius: 3px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .nav-hamburger.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .nav-hamburger.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .nav-mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(255, 255, 255, 0.97);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 8px;
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
        }

        .nav-mobile-overlay.active {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }

        .nav-mobile-overlay a {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-heading);
            padding: 14px 28px;
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-mobile-overlay a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-mobile-overlay a.nav-cta-mobile {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            margin-top: 8px;
        }

        .nav-mobile-overlay a.nav-cta-mobile:hover {
            background: var(--primary-hover);
            color: #fff;
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #F0F6FD 0%, #F4F8FC 30%, #E8F2FA 60%, #FFFFFF 100%);
            overflow: hidden;
            padding: var(--spacing-2xl) 0;
        }

        .hero-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            width: fit-content;
            letter-spacing: 0.3px;
            box-shadow: var(--shadow-sm);
        }

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

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }

        .hero h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-heading);
            letter-spacing: 0.2px;
            margin: 0;
        }

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

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 8px;
            background: var(--primary-light);
            border-radius: 4px;
            z-index: -1;
            opacity: 0.7;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 4px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(42, 125, 225, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(42, 125, 225, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: var(--bg-white);
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            border-color: var(--primary-hover);
            color: var(--primary-hover);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }

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

        .hero-score-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 360px;
            border: 1px solid var(--border-light);
            transform: rotate(-1deg);
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
        }

        .hero-score-card:hover {
            transform: rotate(0deg) translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
        }

        .hero-score-card .match-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-score-card .match-header .live-tag {
            background: #E53E3E;
            color: #fff;
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.5px;
            animation: live-pulse 1.5s ease-in-out infinite;
        }

        @keyframes live-pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        .hero-score-card .teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 12px;
        }

        .hero-score-card .team {
            text-align: center;
            flex: 1;
        }

        .hero-score-card .team-name {
            font-weight: 700;
            font-size: 16px;
            color: var(--text-heading);
            margin-bottom: 4px;
        }

        .hero-score-card .score {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-heading);
            letter-spacing: 2px;
            line-height: 1;
        }

        .hero-score-card .vs {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-score-card .match-info {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
                text-align: center;
            }
            .hero-content {
                align-items: center;
            }
            .hero-badge {
                margin: 0 auto;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-score-card {
                max-width: 300px;
                transform: rotate(0deg);
            }
        }

        @media (max-width: 640px) {
            .hero {
                min-height: auto;
                padding: var(--spacing-xl) 0 var(--spacing-lg);
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-score-card {
                padding: 20px 16px;
                max-width: 260px;
            }
            .hero-score-card .score {
                font-size: 32px;
            }
            .hero-score-card .team-name {
                font-size: 14px;
            }
            .btn {
                padding: 12px 22px;
                font-size: 15px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 16px;
            }
        }

        /* ========== SECTIONS GENERAL ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-alt {
            background: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.2px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ========== CHALLENGE / 痛点区 ========== */
        .challenge-grid {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xl);
        }

        .challenge-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
        }

        .challenge-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .challenge-item.reverse {
            direction: rtl;
        }

        .challenge-item.reverse .challenge-text {
            direction: ltr;
        }

        .challenge-item.reverse .challenge-visual {
            direction: ltr;
        }

        .challenge-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .challenge-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .challenge-visual {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .challenge-visual img {
            border-radius: var(--radius-md);
            width: 100%;
            max-width: 300px;
            object-fit: cover;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-md);
        }

        .challenge-icon-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            max-width: 300px;
            aspect-ratio: 4/3;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            position: relative;
            overflow: hidden;
        }

        .challenge-icon-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        .challenge-icon-inner {
            font-size: 56px;
            color: var(--primary);
            opacity: 0.7;
        }

        @media (max-width: 768px) {
            .challenge-item,
            .challenge-item.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
                gap: var(--spacing-md);
                padding: var(--spacing-md);
            }
            .challenge-item.reverse .challenge-text {
                direction: ltr;
            }
            .challenge-visual {
                order: -1;
            }
            .challenge-visual img,
            .challenge-icon-wrap {
                max-width: 100%;
                aspect-ratio: 16/9;
            }
            .challenge-text h3 {
                font-size: 19px;
            }
        }

        /* ========== SOLUTION / 解决方案区 ========== */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
        }

        .solution-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .solution-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
            border-radius: 0 3px 3px 0;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .solution-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .solution-card:hover::before {
            opacity: 1;
        }

        .solution-card-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .solution-card:hover .solution-card-icon {
            background: var(--primary);
            color: #fff;
        }

        .solution-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .solution-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .solution-card-body .solution-feature-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 8px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .solution-card {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ========== RESULT / 数据区 ========== */
        .result-intro {
            text-align: center;
            font-size: 18px;
            color: var(--text-heading);
            font-weight: 600;
            margin-bottom: var(--spacing-xl);
            letter-spacing: 0.3px;
        }

        .result-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .result-stat {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
        }

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

        .result-stat .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .result-stat .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            line-height: 1.4;
        }

        @media (max-width: 768px) {
            .result-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .result-stat .stat-number {
                font-size: 34px;
            }
            .result-intro {
                font-size: 16px;
            }
        }

        @media (max-width: 480px) {
            .result-stat {
                padding: var(--spacing-md) var(--spacing-sm);
            }
            .result-stat .stat-number {
                font-size: 28px;
            }
        }

        /* ========== TESTIMONIAL / 证言区 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
        }

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

        .testimonial-card .quote-mark {
            font-size: 60px;
            line-height: 1;
            color: var(--accent);
            opacity: 0.35;
            font-family: Georgia, "Times New Roman", serif;
            margin-bottom: -10px;
            display: block;
            letter-spacing: -4px;
        }

        .testimonial-card .quote-text {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
            font-style: italic;
        }

        .testimonial-card .author-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-card .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
            border: 2px solid var(--border-light);
        }

        .testimonial-card .author-info .author-name {
            font-weight: 700;
            font-size: 14px;
            color: var(--text-heading);
        }

        .testimonial-card .author-info .author-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition-normal);
        }

        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-heading);
            text-align: left;
            gap: 16px;
            transition: color var(--transition-fast), background var(--transition-fast);
            cursor: pointer;
            border: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: var(--bg-light);
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            border-left: 3px solid var(--primary);
            margin-left: 22px;
            border-radius: 0 4px 4px 0;
        }

        @media (max-width: 640px) {
            .faq-question {
                font-size: 15px;
                padding: 15px 16px;
            }
            .faq-answer-inner {
                margin-left: 16px;
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #EBF3FD 0%, #F4F8FC 40%, #E3EEF9 100%);
            padding: var(--spacing-3xl) 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            font-size: 15px;
            color: var(--text-heading);
            background: var(--bg-white);
            transition: border-color var(--transition-fast);
        }

        .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.08);
        }

        .cta-form input::placeholder {
            color: var(--text-light);
        }

        @media (max-width: 640px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
                min-width: auto;
            }
        }

        /* ========== FOOTER ========== */
        .footer {
            background: #1E293B;
            color: #CBD5E1;
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-xl);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F1F5F9;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer p,
        .footer a {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
        }

        .footer a {
            display: block;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer a:hover {
            color: var(--primary);
        }

        .footer-brand-text {
            margin-top: 8px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            font-size: 13px;
            color: #64748B;
            letter-spacing: 0.2px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== SCROLL TO TOP ========== */
        .scroll-top-btn {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            z-index: 900;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal), transform var(--transition-normal);
            box-shadow: 0 4px 16px rgba(42, 125, 225, 0.35);
            cursor: pointer;
            border: none;
        }

        .scroll-top-btn.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .scroll-top-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 22px rgba(42, 125, 225, 0.45);
        }

        /* ========== ACCESSIBILITY ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ========== RESPONSIVE UTILITIES ========== */
        @media (max-width: 1024px) {
            :root {
                --spacing-3xl: 80px;
                --spacing-2xl: 56px;
            }
        }

        @media (max-width: 640px) {
            :root {
                --spacing-3xl: 56px;
                --spacing-2xl: 40px;
            }
            body {
                font-size: 15px;
            }
        }