/* roulang page: index */
:root {
            --bg-primary: #0D0D0D;
            --bg-secondary: #111114;
            --bg-card: rgba(255, 255, 255, 0.03);
            --color-primary: #00E5A0;
            --color-primary-dark: #00c78a;
            --color-primary-glow: rgba(0, 229, 160, 0.35);
            --color-accent: #6C3CE1;
            --color-accent-glow: rgba(108, 60, 225, 0.4);
            --text-primary: #FFFFFF;
            --text-secondary: #B0B3C1;
            --text-body: #E0E0E6;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-card: rgba(255, 255, 255, 0.12);
            --border-glow: rgba(0, 229, 160, 0.25);
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-pill: 50px;
            --shadow-card: 0 0 1px rgba(0, 229, 160, 0.3), 0 4px 12px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 0 8px rgba(0, 229, 160, 0.5), 0 8px 28px rgba(0, 0, 0, 0.55);
            --shadow-glow-sm: 0 0 6px rgba(0, 229, 160, 0.25);
            --shadow-glow-md: 0 0 18px rgba(0, 229, 160, 0.35);
            --font-sans: 'Inter', 'PingFang SC', '苹方', 'Microsoft YaHei', '微软雅黑', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-mono: 'Inter', 'SF Mono', 'Consolas', 'Monaco', monospace;
            --container-max: 1320px;
            --section-gap-y: 140px;
            --section-gap-y-mobile: 80px;
            --card-gap: 32px;
            --header-height: 72px;
            --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-smooth: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            letter-spacing: 0.01em;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            line-height: 1.25;
            font-weight: 700;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--header-height);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth), backdrop-filter var(--transition-smooth);
            background: transparent;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
        }
        .site-header.scrolled {
            background: rgba(13, 13, 13, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 8px 32px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 900;
            font-size: 1.35rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            z-index: 1002;
            white-space: nowrap;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: #0D0D0D;
            flex-shrink: 0;
            letter-spacing: 0;
        }
        .logo-text {
            color: #fff;
        }
        .logo-text .accent {
            color: var(--color-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .main-nav a {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.03em;
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .main-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-smooth);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: #fff;
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: var(--color-primary);
            color: #0D0D0D !important;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background: #fff;
            color: #0D0D0D !important;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-md);
        }
        .nav-cta-btn::after {
            display: none !important;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1002;
            background: none;
            border: none;
            padding: 8px 4px;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 1001;
            background: rgba(8, 8, 10, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 40px;
        }
        .mobile-nav-overlay.active {
            display: flex;
        }
        .mobile-nav-overlay a {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            transition: color var(--transition-fast);
        }
        .mobile-nav-overlay a:hover {
            color: var(--color-primary);
        }
        .mobile-nav-overlay .mobile-cta {
            margin-top: 16px;
            padding: 14px 36px;
            border-radius: var(--radius-pill);
            background: var(--color-primary);
            color: #0D0D0D;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: #0A0A0E;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.38;
            z-index: 0;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 40%, rgba(0, 229, 160, 0.06) 0%, rgba(13, 13, 13, 0.85) 70%, #0D0D0D 100%);
            z-index: 1;
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            background-image: radial-gradient(1px 1px at 15% 25%, rgba(0, 229, 160, 0.7) 0%, transparent 100%),
                radial-gradient(1px 1px at 72% 18%, rgba(0, 229, 160, 0.55) 0%, transparent 100%),
                radial-gradient(1.5px 1.5px at 38% 55%, rgba(108, 60, 225, 0.6) 0%, transparent 100%),
                radial-gradient(1px 1px at 85% 60%, rgba(0, 229, 160, 0.5) 0%, transparent 100%),
                radial-gradient(1.5px 1.5px at 22% 70%, rgba(108, 60, 225, 0.5) 0%, transparent 100%),
                radial-gradient(1px 1px at 60% 80%, rgba(0, 229, 160, 0.45) 0%, transparent 100%),
                radial-gradient(1px 1px at 90% 35%, rgba(0, 229, 160, 0.55) 0%, transparent 100%),
                radial-gradient(1.5px 1.5px at 10% 45%, rgba(108, 60, 225, 0.5) 0%, transparent 100%);
            background-size: 200px 200px, 180px 180px, 220px 220px, 170px 170px, 190px 190px, 210px 210px, 160px 160px, 200px 200px;
            animation: particlesDrift 18s linear infinite;
        }
        @keyframes particlesDrift {
            0% {
                background-position: 0 0, 40px 20px, 80px -10px, 120px 30px, -30px 50px, 60px 70px, 150px 40px, -50px -20px;
            }
            50% {
                background-position: 30px 25px, 70px -10px, 110px 35px, 150px -5px, 0 70px, 90px 40px, 180px 10px, -20px 15px;
            }
            100% {
                background-position: 0 0, 40px 20px, 80px -10px, 120px 30px, -30px 50px, 60px 70px, 150px 40px, -50px -20px;
            }
        }
        .hero-grid-lines {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            opacity: 0.06;
            background-image: linear-gradient(rgba(255, 255, 255, 0.4) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.4) 1px, transparent 1px);
            background-size: 60px 60px;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(0, 229, 160, 0.4);
            background: rgba(0, 229, 160, 0.06);
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(2.8rem, 5.5vw, 5.5rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 8px;
            background: linear-gradient(135deg, #fff 20%, var(--color-primary) 70%, #fff 90%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .hero-title-sub {
            font-size: clamp(1.5rem, 3vw, 2.4rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            cursor: pointer;
            text-transform: uppercase;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #0D0D0D;
            box-shadow: var(--shadow-glow-sm);
        }
        .btn-primary:hover {
            background: #fff;
            color: #0D0D0D;
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-md);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow-sm);
        }
        .btn-lg {
            padding: 18px 40px;
            font-size: 1.05rem;
        }
        .hero-scroll-indicator {
            position: absolute;
            bottom: 36px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
            letter-spacing: 0.06em;
            animation: scrollBounce 2s ease-in-out infinite;
        }
        .hero-scroll-indicator i {
            font-size: 1.2rem;
        }
        @keyframes scrollBounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(10px);
            }
        }

        /* ========== SECTIONS GENERAL ========== */
        .section {
            padding: var(--section-gap-y) 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            color: var(--color-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: clamp(1.8rem, 2.8vw, 2.8rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            position: relative;
            display: inline-block;
            letter-spacing: -0.01em;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-top: 6px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 520px;
            margin: 12px auto 0;
        }

        /* ========== FEATURES SECTION ========== */
        .features-section {
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        .features-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -200px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(108, 60, 225, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .features-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            grid-template-rows: auto auto;
            gap: var(--card-gap);
            position: relative;
            z-index: 1;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            cursor: default;
        }
        .feature-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px) scale(1.015);
            background: rgba(255, 255, 255, 0.05);
        }
        .feature-card.feature-main {
            grid-row: span 2;
            min-height: 360px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .feature-card.feature-main .feature-icon {
            font-size: 2.8rem;
            margin-bottom: 16px;
        }
        .feature-card.feature-main .feature-title {
            font-size: 1.6rem;
        }
        .feature-card.feature-main .feature-desc {
            font-size: 1.05rem;
            max-width: 440px;
        }
        .feature-icon {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 12px;
            display: inline-block;
            transition: transform var(--transition-bounce);
        }
        .feature-card:hover .feature-icon {
            transform: scale(1.1);
        }
        .feature-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }
        .feature-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .feature-card.feature-secondary {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 160px;
        }

        /* ========== SCENARIOS SECTION ========== */
        .scenarios-section {
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            margin-bottom: 80px;
            position: relative;
        }
        .scenario-block:last-child {
            margin-bottom: 0;
        }
        .scenario-block.reverse .scenario-image-wrap {
            order: 1;
        }
        .scenario-block.reverse .scenario-text {
            order: 0;
        }
        .scenario-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            min-height: 280px;
        }
        .scenario-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .scenario-image-wrap:hover img {
            transform: scale(1.04);
        }
        .scenario-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .scenario-text {
            position: relative;
            padding: 20px 0;
        }
        .scenario-number {
            font-size: 7rem;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.03);
            position: absolute;
            top: -30px;
            left: -16px;
            line-height: 1;
            pointer-events: none;
            font-family: var(--font-mono);
            letter-spacing: -0.04em;
        }
        .scenario-text h3 {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .scenario-text p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.75;
            position: relative;
            z-index: 1;
        }
        .scenario-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-accent);
            color: var(--color-accent);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        /* ========== CASES SECTION ========== */
        .cases-section {
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        .cases-section::before {
            content: '';
            position: absolute;
            bottom: -150px;
            left: -150px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .cases-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }
        .case-stat-card {
            text-align: center;
            padding: 40px 20px;
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .case-stat-card:hover {
            border-color: rgba(0, 229, 160, 0.3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .case-stat-number {
            font-size: 3.2rem;
            font-weight: 900;
            font-family: var(--font-mono);
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }
        .case-stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .case-stat-sub {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 4px;
        }
        .cases-highlight-bar {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
            justify-content: center;
            margin-top: 40px;
            padding: 28px 32px;
            border-radius: var(--radius-lg);
            background: rgba(108, 60, 225, 0.06);
            border: 1px solid rgba(108, 60, 225, 0.2);
            position: relative;
            z-index: 1;
        }
        .cases-highlight-bar span {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .cases-highlight-bar .badge-pill {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-pill);
            background: var(--color-accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        /* ========== PRICING SECTION ========== */
        .pricing-section {
            background: var(--bg-secondary);
            position: relative;
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        .pricing-card {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 40px 28px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }
        .pricing-card.recommended {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-card);
            background: rgba(0, 229, 160, 0.04);
            transform: scale(1.03);
        }
        .pricing-card.recommended:hover {
            transform: scale(1.03) translateY(-4px);
            box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-card-hover);
        }
        .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: #0D0D0D;
            padding: 6px 20px;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 0.78rem;
            letter-spacing: 0.05em;
            white-space: nowrap;
        }
        .pricing-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .pricing-price {
            font-size: 3rem;
            font-weight: 900;
            font-family: var(--font-mono);
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
        }
        .pricing-price-sub {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .pricing-features {
            list-style: none;
            text-align: left;
            margin-bottom: 28px;
            flex: 1;
        }
        .pricing-features li {
            padding: 8px 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li i {
            color: var(--color-primary);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .pricing-card .btn {
            width: 100%;
            justify-content: center;
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            background: var(--bg-primary);
            position: relative;
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition-smooth);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 0;
            cursor: pointer;
            font-weight: 600;
            color: #fff;
            font-size: 1.05rem;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            transition: all var(--transition-smooth);
        }
        .faq-item.active .faq-number {
            background: var(--color-primary);
            color: #0D0D0D;
        }
        .faq-arrow {
            margin-left: auto;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            padding: 0 0 0 52px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 0 20px 52px;
        }
        .faq-item.active .faq-question {
            color: var(--color-primary);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
            background: linear-gradient(160deg, rgba(13, 13, 13, 0.95) 0%, rgba(30, 18, 60, 0.9) 40%, rgba(13, 13, 13, 0.95) 100%);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(108, 60, 225, 0.2) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 620px;
            padding: 0 24px;
        }
        .cta-content h2 {
            font-size: clamp(2rem, 3.5vw, 3rem);
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-content p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 15px 22px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
        }
        .cta-form input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.12);
            outline: none;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        .cta-trust {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
            letter-spacing: 0.03em;
        }
        .cta-trust i {
            color: var(--color-primary);
            margin: 0 4px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #08080B;
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-link {
            font-size: 1.2rem;
            margin-bottom: 10px;
            display: inline-flex;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-primary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
            flex-wrap: wrap;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 1rem;
            transition: all var(--transition-smooth);
        }
        .footer-social a:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: var(--shadow-glow-sm);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            text-align: center;
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.8rem;
            letter-spacing: 0.03em;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .feature-card.feature-main {
                grid-column: 1 / -1;
                grid-row: auto;
                min-height: 240px;
            }
            .cases-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .pricing-card.recommended {
                transform: scale(1);
            }
            .pricing-card.recommended:hover {
                transform: scale(1) translateY(-4px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .scenario-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .scenario-block.reverse .scenario-image-wrap {
                order: 0;
            }
            .scenario-block.reverse .scenario-text {
                order: 0;
            }
            .scenario-number {
                font-size: 5rem;
                top: -20px;
            }
        }

        @media (max-width: 768px) {
            html {
                font-size: 12px;
            }
            :root {
                --section-gap-y: 70px;
                --card-gap: 20px;
                --header-height: 60px;
            }
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-section {
                min-height: 100vh;
                min-height: 100dvh;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-title-sub {
                font-size: 1.2rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.85rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card.feature-main {
                min-height: 200px;
            }
            .feature-card.feature-secondary {
                min-height: 130px;
            }
            .cases-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .case-stat-number {
                font-size: 2.4rem;
            }
            .cases-highlight-bar {
                flex-direction: column;
                gap: 12px;
                text-align: center;
                padding: 20px;
            }
            .pricing-grid {
                max-width: 100%;
            }
            .pricing-card {
                padding: 28px 20px;
            }
            .faq-question {
                font-size: 0.9rem;
                gap: 10px;
            }
            .faq-answer {
                font-size: 0.85rem;
                padding: 0 0 0 40px;
            }
            .faq-item.active .faq-answer {
                padding: 0 0 16px 40px;
            }
            .faq-number {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .cta-section {
                min-height: 55vh;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
                margin: 0 auto;
            }
            .footer-social {
                justify-content: center;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .scenario-text h3 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 16px;
            }
            .hero-scroll-indicator {
                bottom: 20px;
                font-size: 0.65rem;
            }
            .hero-grid-lines {
                background-size: 40px 40px;
            }
        }

        @media (max-width: 520px) {
            html {
                font-size: 11px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-title-sub {
                font-size: 1rem;
            }
            .cases-dashboard {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .case-stat-card {
                padding: 24px 16px;
            }
            .case-stat-number {
                font-size: 2rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-title::after {
                width: 16px;
                height: 2px;
            }
            .scenario-number {
                font-size: 3.8rem;
                top: -16px;
                left: -8px;
            }
        }