/* roulang page: index */
:root {
            --color-primary: #E84A2A;
            --color-primary-dark: #C63D20;
            --color-primary-light: #F06B4F;
            --color-secondary: #1C1E2E;
            --color-secondary-light: #2A2D42;
            --color-bg: #F2F7F2;
            --color-bg-white: #FFFFFF;
            --color-accent: #16A34A;
            --color-accent-dark: #138A3E;
            --color-neutral-light: #F8FAFC;
            --color-neutral-mid: #E2E8F0;
            --color-text-weak: #94A3B8;
            --color-text-body: #475569;
            --color-text-heading: #1C1E2E;
            --color-text-white: #FFFFFF;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 30px;
            --radius-full: 9999px;
            --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.45s ease;
            --max-width: 1280px;
            --header-height: 80px;
            --section-gap: 120px;
            --section-gap-mobile: 80px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-body);
            background-color: var(--color-bg);
            background-image: linear-gradient(180deg, #F2F7F2 0%, #FFFFFF 100%);
            background-attachment: fixed;
            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: var(--font-stack);
            border: none;
            outline: none;
            transition: all var(--transition-normal);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        input {
            font-family: var(--font-stack);
        }

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

        /* Header / Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal), box-shadow var(--transition-normal);
            background: transparent;
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.97);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

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

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-text-white);
            letter-spacing: 0.5px;
            transition: color var(--transition-normal);
            white-space: nowrap;
            z-index: 1001;
        }

        .header.scrolled .header-logo {
            color: var(--color-secondary);
        }

        .header-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .header-logo-icon::before {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: white;
            top: 6px;
            left: 50%;
            transform: translateX(-50%);
        }

        .header-logo-icon::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: white;
            border-radius: 2px;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
        }

        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .header.scrolled .header-nav a {
            color: var(--color-text-body);
        }

        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
            transition: width var(--transition-normal);
        }

        .header-nav a:hover::after,
        .header-nav a.active::after {
            width: 100%;
        }

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

        .header.scrolled .header-nav a:hover {
            color: var(--color-primary);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 11px 26px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-xl);
            white-space: nowrap;
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            box-shadow: 0 4px 14px rgba(232, 74, 42, 0.35);
        }

        .header-cta:hover {
            background: var(--color-primary-dark);
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(232, 74, 42, 0.45);
            color: #fff;
        }

        .header.scrolled .header-cta {
            box-shadow: 0 4px 14px rgba(232, 74, 42, 0.3);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-normal);
        }

        .header.scrolled .hamburger span {
            background: var(--color-secondary);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile menu overlay */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(28, 30, 46, 0.97);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }

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

        .mobile-menu-overlay a {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 1px;
            transition: color var(--transition-fast);
        }

        .mobile-menu-overlay a:hover {
            color: var(--color-primary);
        }

        .mobile-menu-overlay .mobile-cta {
            margin-top: 12px;
            padding: 14px 36px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-xl);
            font-weight: 700;
            font-size: 16px;
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding-top: var(--header-height);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(232, 74, 42, 0.35) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(28, 30, 46, 0.55) 0%, transparent 60%),
                linear-gradient(180deg, rgba(28, 30, 46, 0.6) 0%, rgba(28, 30, 46, 0.75) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 60px;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .hero-content {
            flex: 1;
            max-width: 580px;
        }

        .hero-badge {
            display: inline-block;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-full);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 460px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 34px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-xl);
            letter-spacing: 0.4px;
            box-shadow: 0 6px 22px rgba(232, 74, 42, 0.4);
            transition: all var(--transition-normal);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 10px 30px rgba(232, 74, 42, 0.5);
            color: #fff;
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(255, 255, 255, 0.5);
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .hero-visual {
            flex: 0 0 420px;
            position: relative;
        }

        .hero-mockup {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
            border: 3px solid rgba(255, 255, 255, 0.2);
            transform: perspective(800px) rotateY(-3deg) rotateX(2deg);
            transition: transform var(--transition-slow);
        }

        .hero-mockup:hover {
            transform: perspective(800px) rotateY(0deg) rotateX(0deg);
        }

        .hero-mockup img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

        /* Section共通 */
        section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(22, 163, 74, 0.1);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-full);
            letter-spacing: 0.8px;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--color-text-weak);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* Features Section - 选项卡矩阵 */
        .features-section {
            background: #fff;
            border-radius: 40px 40px 0 0;
            margin-top: -60px;
            position: relative;
            z-index: 3;
            padding-top: 100px;
        }

        .features-matrix {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            min-height: 480px;
        }

        .features-tabs {
            flex: 0 0 220px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            border-right: 2px solid var(--color-neutral-mid);
            padding-right: 20px;
        }

        .feature-tab-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 15px 18px;
            background: transparent;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-body);
            cursor: pointer;
            transition: all var(--transition-normal);
            text-align: left;
            position: relative;
            letter-spacing: 0.2px;
        }

        .feature-tab-btn::before {
            content: '';
            position: absolute;
            left: -22px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--color-accent);
            border-radius: 2px;
            transition: height var(--transition-normal);
        }

        .feature-tab-btn.active {
            color: var(--color-primary);
            background: rgba(232, 74, 42, 0.05);
        }

        .feature-tab-btn.active::before {
            height: 28px;
        }

        .feature-tab-btn .tab-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-neutral-mid);
            flex-shrink: 0;
            transition: all var(--transition-normal);
        }

        .feature-tab-btn.active .tab-dot {
            background: var(--color-accent);
            box-shadow: 0 0 0 5px rgba(22, 163, 74, 0.15);
        }

        .feature-tab-btn:hover {
            color: var(--color-primary);
            background: rgba(232, 74, 42, 0.03);
        }

        .features-content-area {
            flex: 1;
            position: relative;
            min-height: 420px;
        }

        .feature-panel {
            display: none;
            animation: fadeSlideIn 0.4s ease forwards;
            gap: 32px;
            align-items: center;
        }

        .feature-panel.active {
            display: flex;
        }

        @keyframes fadeSlideIn {
            from {
                opacity: 0;
                transform: translateY(16px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .feature-panel-text {
            flex: 1;
        }

        .feature-panel-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 12px;
        }

        .feature-panel-text p {
            font-size: 15px;
            color: var(--color-text-body);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .feature-highlights {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .feature-highlights li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-body);
            font-weight: 500;
        }

        .feature-highlights li .check-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(22, 163, 74, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 700;
        }

        .feature-panel-img {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 2px solid var(--color-neutral-mid);
        }

        .feature-panel-img img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        /* Scenarios Section */
        .scenarios-section {
            background: var(--color-bg);
            padding-top: 100px;
        }

        .scenarios-grid {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .scenario-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            cursor: default;
        }

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

        .scenario-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 30, 46, 0.75) 0%, rgba(28, 30, 46, 0.5) 50%, rgba(28, 30, 46, 0.7) 100%);
            z-index: 1;
        }

        .scenario-card-content {
            position: relative;
            z-index: 2;
            padding: 48px 56px;
            max-width: 540px;
        }

        .scenario-card-content h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .scenario-card-content p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.5px;
            border-bottom: 2px solid var(--color-primary);
            padding-bottom: 3px;
            transition: all var(--transition-fast);
        }

        .scenario-link:hover {
            color: var(--color-primary);
            border-bottom-color: #fff;
        }

        .scenario-card:nth-child(1) {
            background-image: url('/assets/images/backpic/back-2.webp');
        }

        .scenario-card:nth-child(2) {
            background-image: url('/assets/images/backpic/back-3.webp');
            background-position: center 30%;
        }

        .scenario-card:nth-child(3) {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-position: center 60%;
        }

        /* Cases Section */
        .cases-section {
            background: #fff;
        }

        .cases-slider {
            display: flex;
            flex-direction: column;
            gap: 36px;
        }

        .case-item {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 40px;
            background: var(--color-neutral-light);
            border-radius: var(--radius-lg);
            transition: all var(--transition-normal);
            position: relative;
        }

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

        .case-item:nth-child(even) {
            flex-direction: row-reverse;
            background: #fff;
            border: 1px solid var(--color-neutral-mid);
        }

        .case-brand {
            flex: 0 0 200px;
            text-align: center;
        }

        .case-brand img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin: 0 auto 14px;
            box-shadow: var(--shadow-sm);
        }

        .case-brand .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--color-text-heading);
        }

        .case-brand .brand-stat {
            font-size: 13px;
            color: var(--color-accent);
            font-weight: 600;
            margin-top: 4px;
        }

        .case-testimonial {
            flex: 1;
            position: relative;
        }

        .case-testimonial::before {
            content: '"';
            position: absolute;
            top: -30px;
            left: -10px;
            font-size: 80px;
            color: rgba(232, 74, 42, 0.12);
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }

        .case-testimonial blockquote {
            font-size: 16px;
            color: var(--color-text-body);
            line-height: 1.85;
            font-style: italic;
            margin-bottom: 14px;
            padding-left: 8px;
            border-left: 3px solid var(--color-primary);
        }

        .case-results {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .case-result-item {
            text-align: center;
        }

        .case-result-item .result-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
        }

        .case-result-item .result-label {
            font-size: 12px;
            color: var(--color-text-weak);
            letter-spacing: 0.5px;
        }

        /* Pricing Section */
        .pricing-section {
            background: var(--color-bg);
        }

        .pricing-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            margin-bottom: 48px;
        }

        .pricing-toggle span {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text-body);
            transition: color var(--transition-fast);
        }

        .pricing-toggle span.active-label {
            color: var(--color-primary);
        }

        .toggle-switch {
            width: 52px;
            height: 28px;
            background: var(--color-primary);
            border-radius: 14px;
            position: relative;
            cursor: pointer;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .toggle-switch::after {
            content: '';
            position: absolute;
            top: 3px;
            left: 3px;
            width: 22px;
            height: 22px;
            background: #fff;
            border-radius: 50%;
            transition: left var(--transition-normal);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

        .toggle-switch.annual::after {
            left: 27px;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }

        .pricing-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            border: 2px solid transparent;
            transition: all var(--transition-normal);
            position: relative;
            box-shadow: var(--shadow-xs);
            display: flex;
            flex-direction: column;
        }

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

        .pricing-card.featured {
            border-color: var(--color-primary);
            transform: scale(1.04);
            box-shadow: var(--shadow-lg);
            z-index: 2;
            background: #fff;
        }

        .pricing-card.featured:hover {
            transform: scale(1.04) translateY(-3px);
            box-shadow: var(--shadow-xl);
        }

        .pricing-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.6px;
            white-space: nowrap;
        }

        .pricing-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 8px;
        }

        .pricing-card .price-amount {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-secondary);
            margin: 10px 0;
            letter-spacing: -1px;
        }

        .pricing-card .price-amount .currency {
            font-size: 20px;
            font-weight: 600;
        }

        .pricing-card .price-amount .period {
            font-size: 14px;
            font-weight: 400;
            color: var(--color-text-weak);
        }

        .pricing-card .price-original {
            font-size: 14px;
            color: var(--color-text-weak);
            text-decoration: line-through;
            margin-bottom: 6px;
            min-height: 20px;
        }

        .pricing-features {
            list-style: none;
            text-align: left;
            margin: 24px 0;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .pricing-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-body);
        }

        .pricing-features li .check {
            color: var(--color-accent);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 13px;
        }

        .btn-pricing {
            display: block;
            width: 100%;
            padding: 13px 20px;
            background: var(--color-secondary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-xl);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
        }

        .btn-pricing:hover {
            background: var(--color-secondary-light);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }

        .pricing-card.featured .btn-pricing {
            background: var(--color-primary);
            box-shadow: 0 4px 16px rgba(232, 74, 42, 0.35);
        }

        .pricing-card.featured .btn-pricing:hover {
            background: var(--color-primary-dark);
            box-shadow: 0 6px 20px rgba(232, 74, 42, 0.45);
        }

        .pricing-enterprise {
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
        }

        .pricing-enterprise p {
            font-size: 15px;
            color: var(--color-text-body);
            margin-bottom: 10px;
        }

        .pricing-enterprise a {
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            border-bottom: 2px solid var(--color-primary);
            padding-bottom: 2px;
            transition: all var(--transition-fast);
        }

        .pricing-enterprise a:hover {
            color: var(--color-primary-dark);
            border-bottom-color: var(--color-primary-dark);
        }

        /* FAQ Section */
        .faq-section {
            background: #fff;
        }

        .faq-layout {
            display: flex;
            gap: 48px;
            align-items: flex-start;
        }

        .faq-categories {
            flex: 0 0 180px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            position: sticky;
            top: 100px;
        }

        .faq-cat-btn {
            padding: 14px 20px;
            background: transparent;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-body);
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-normal);
            letter-spacing: 0.2px;
        }

        .faq-cat-btn.active {
            background: rgba(232, 74, 42, 0.06);
            color: var(--color-primary);
            font-weight: 700;
        }

        .faq-cat-btn:hover {
            color: var(--color-primary);
            background: rgba(232, 74, 42, 0.03);
        }

        .faq-content-area {
            flex: 1;
            min-height: 300px;
        }

        .faq-group {
            display: none;
        }

        .faq-group.active {
            display: block;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-neutral-mid);
            padding: 6px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 0;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-heading);
            text-align: left;
            gap: 16px;
            letter-spacing: 0.2px;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-neutral-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            font-weight: 700;
            transition: all var(--transition-normal);
            color: var(--color-text-body);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 10px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 10px 20px 10px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-text-body);
            line-height: 1.8;
            max-width: 700px;
        }

        /* Global CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #C63D20 40%, var(--color-secondary) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.4px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: var(--radius-xl);
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 15px;
            outline: none;
            transition: all var(--transition-normal);
            backdrop-filter: blur(4px);
            letter-spacing: 0.2px;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-form input:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.22);
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
        }

        .btn-cta-submit {
            padding: 14px 32px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-xl);
            letter-spacing: 0.4px;
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        .btn-cta-submit:hover {
            background: #f8f8f8;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
        }

        /* Footer */
        .footer {
            background: var(--color-secondary);
            color: #CBD5E1;
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-xs);
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .footer-brand .footer-logo-icon::before {
            content: '';
            position: absolute;
            width: 13px;
            height: 13px;
            border-radius: 50%;
            background: white;
            top: 5px;
            left: 50%;
            transform: translateX(-50%);
        }

        .footer-brand .footer-logo-icon::after {
            content: '';
            position: absolute;
            bottom: 5px;
            left: 50%;
            transform: translateX(-50%);
            width: 17px;
            height: 2.5px;
            background: white;
            border-radius: 1px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #CBD5E1;
            transition: color var(--transition-fast);
        }

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

        .footer-social {
            display: flex;
            gap: 14px;
            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;
            transition: all var(--transition-fast);
            font-size: 18px;
            color: #CBD5E1;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #94A3B8;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                flex-direction: column;
                gap: 40px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual {
                flex: 0 0 auto;
                max-width: 380px;
                width: 100%;
            }
            .hero h1 {
                font-size: 36px;
            }
            .features-matrix {
                flex-direction: column;
                gap: 24px;
            }
            .features-tabs {
                flex: 0 0 auto;
                flex-direction: row;
                flex-wrap: wrap;
                border-right: none;
                border-bottom: 2px solid var(--color-neutral-mid);
                padding-right: 0;
                padding-bottom: 12px;
                gap: 6px;
            }
            .feature-tab-btn::before {
                display: none;
            }
            .feature-tab-btn {
                padding: 10px 16px;
                font-size: 14px;
                border-radius: var(--radius-full);
            }
            .feature-tab-btn.active {
                background: var(--color-primary);
                color: #fff;
            }
            .feature-tab-btn.active .tab-dot {
                background: #fff;
                box-shadow: none;
            }
            .feature-panel {
                flex-direction: column;
            }
            .feature-panel-img {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 440px;
                margin: 0 auto;
            }
            .pricing-card.featured {
                transform: scale(1);
            }
            .pricing-card.featured:hover {
                transform: scale(1) translateY(-3px);
            }
            .faq-layout {
                flex-direction: column;
                gap: 20px;
            }
            .faq-categories {
                flex: 0 0 auto;
                flex-direction: row;
                flex-wrap: wrap;
                position: static;
                gap: 6px;
            }
            .faq-cat-btn {
                padding: 10px 16px;
                font-size: 14px;
                border-radius: var(--radius-full);
            }
            .faq-cat-btn.active {
                background: var(--color-primary);
                color: #fff;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .case-item,
            .case-item:nth-child(even) {
                flex-direction: column;
                text-align: center;
                gap: 24px;
            }
            .case-brand {
                flex: 0 0 auto;
            }
            .case-testimonial::before {
                left: 50%;
                transform: translateX(-50%);
                top: -20px;
                font-size: 50px;
            }
            .case-testimonial blockquote {
                border-left: none;
                padding-left: 0;
                text-align: center;
            }
            .case-results {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 80px;
                --header-height: 64px;
            }
            section {
                padding: var(--section-gap) 0;
            }
            .header {
                height: var(--header-height);
            }
            .header-nav {
                display: none;
            }
            .header-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu-overlay {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding-top: calc(var(--header-height) + 60px);
                padding-bottom: 60px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-visual {
                max-width: 300px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .features-section {
                border-radius: 24px 24px 0 0;
                margin-top: -30px;
                padding-top: 60px;
            }
            .scenario-card-content {
                padding: 32px 24px;
            }
            .scenario-card-content h3 {
                font-size: 22px;
            }
            .pricing-card {
                padding: 28px 20px;
            }
            .pricing-card .price-amount {
                font-size: 32px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
                max-width: 360px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .features-tabs {
                gap: 4px;
            }
            .feature-tab-btn {
                font-size: 13px;
                padding: 8px 13px;
            }
            .feature-panel-text h3 {
                font-size: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .btn-primary {
                padding: 13px 24px;
                font-size: 14px;
            }
            .btn-outline-light {
                padding: 12px 22px;
                font-size: 13px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .hero-visual {
                max-width: 260px;
            }
            .case-item {
                padding: 24px 16px;
            }
            .case-testimonial blockquote {
                font-size: 14px;
            }
            .case-result-item .result-number {
                font-size: 22px;
            }
            .faq-question {
                font-size: 14px;
            }
            .pricing-grid {
                max-width: 100%;
            }
            .header-logo {
                font-size: 18px;
            }
            .header-logo-icon {
                width: 30px;
                height: 30px;
            }
        }