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

        :root {
            --text: #111827;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --accent: #6366F1;
            --accent-light: #818CF8;
            --accent-dark: #4F46E5;
            --bg: #FFFFFF;
            --bg-secondary: #F9FAFB;
            --bg-tertiary: #F3F4F6;
            --border: #E5E7EB;
            --green: #10B981;
            --orange: #F59E0B;
            --purple: #8B5CF6;
            --blue: #3B82F6;
            --rose: #F43F5E;
            --cyan: #06B6D4;
            --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
            --gradient-hero: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
            --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
            --gradient-glow: radial-gradient(circle at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            /* 与 Hero 底色一致的科技灰蓝 */
            background: #f8fafc;
        }

        /* ========== 环境聚光灯（增强可见度） ========== */
        .spotlight {
            position: absolute;
            border-radius: 50%;
            pointer-events: none;
            z-index: 1;
        }

        /* 聚光灯 A：左侧标题文字后方 */
        .spotlight-title {
            top: 20%;
            left: 8%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle at center,
                rgba(196, 181, 253, 0.4) 0%,
                rgba(196, 181, 253, 0.2) 40%,
                transparent 70%);
            filter: blur(80px);
        }

        /* 聚光灯 B：右侧 3D 面板后方 */
        .spotlight-panel {
            top: 25%;
            right: 12%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle at center,
                rgba(240, 171, 252, 0.45) 0%,
                rgba(240, 171, 252, 0.25) 40%,
                transparent 70%);
            filter: blur(90px);
        }

        /* ========== 科技 UI 微缩元素 ========== */
        .tech-accents {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 4;
            pointer-events: none;
        }

        .tech-crosshair {
            position: absolute;
            width: 12px;
            height: 12px;
            opacity: 0.15;
        }

        .tech-crosshair::before,
        .tech-crosshair::after {
            content: '';
            position: absolute;
            background: rgba(129, 140, 248, 0.8);
        }

        .tech-crosshair::before {
            top: 0;
            left: 50%;
            width: 1px;
            height: 100%;
            transform: translateX(-50%);
        }

        .tech-crosshair::after {
            top: 50%;
            left: 0;
            width: 100%;
            height: 1px;
            transform: translateY(-50%);
        }

        .tech-binary {
            position: absolute;
            font-family: 'Courier New', monospace;
            font-size: 10px;
            color: rgba(129, 140, 248, 0.15);
            letter-spacing: 2px;
            line-height: 1.5;
        }

        /* ========== Canvas 梦幻星空微粒层 ========== */
        .neural-canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 20;
            pointer-events: none;
        }

        /* ========== 3D 悬浮科技面板 ========== */
        .hero-illustration {
            position: relative;
            z-index: 10;
            display: flex;
            align-items: center;
            justify-content: center;
            perspective: 1200px;
        }

        .dashboard-3d {
            position: relative;
            width: 100%;
            max-width: 480px;
            height: 380px;
            transform-style: preserve-3d;
        }

        /* 主面板 */
        .panel-main {
            position: absolute;
            top: 20px;
            left: 0;
            width: 320px;
            height: 240px;
            background: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            box-shadow:
                0 20px 60px rgba(99, 102, 241, 0.15),
                0 8px 24px rgba(139, 92, 246, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
            transform: rotateY(-20deg) rotateX(12deg) translateZ(0);
            padding: 20px;
            overflow: hidden;
            animation: panel-float-1 6s ease-in-out infinite;
        }

        /* 辅助面板 */
        .panel-secondary {
            position: absolute;
            bottom: 40px;
            right: 0;
            width: 200px;
            height: 140px;
            background: rgba(255, 255, 255, 0.45);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            box-shadow:
                0 16px 48px rgba(99, 102, 241, 0.12),
                0 6px 20px rgba(139, 92, 246, 0.08),
                inset 0 1px 0 rgba(255, 255, 255, 0.7);
            transform: rotateY(-15deg) rotateX(8deg) translateZ(40px);
            padding: 16px;
            overflow: hidden;
            animation: panel-float-2 8s ease-in-out infinite;
            animation-delay: 2s;
        }

        /* 面板异步悬浮动画 */
        @keyframes panel-float-1 {
            0%, 100% { transform: rotateY(-20deg) rotateX(12deg) translateZ(0) translateY(0); }
            50% { transform: rotateY(-20deg) rotateX(12deg) translateZ(0) translateY(-8px); }
        }

        @keyframes panel-float-2 {
            0%, 100% { transform: rotateY(-15deg) rotateX(8deg) translateZ(40px) translateY(0); }
            50% { transform: rotateY(-15deg) rotateX(8deg) translateZ(40px) translateY(-6px); }
        }

        /* 背光呼吸灯 */
        .dashboard-backdrop {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, rgba(236, 72, 153, 0.08) 40%, transparent 70%);
            filter: blur(60px);
            pointer-events: none;
            z-index: -1;
            animation: backdrop-breathe 5s ease-in-out infinite;
        }

        @keyframes backdrop-breathe {
            0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
            50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.05); }
        }

        /* 面板标题栏 */
        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .panel-title {
            font-size: 12px;
            font-weight: 600;
            color: #4f46e5;
            letter-spacing: 0.05em;
        }

        .panel-status {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 10px;
            color: #10b981;
        }

        .status-dot {
            width: 6px;
            height: 6px;
            background: #10b981;
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 0.6; transform: scale(1); }
            50% { opacity: 1; transform: scale(1.2); }
        }

        /* AI 能量核心 */
        .ai-core {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) translateZ(80px);
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #f472b6 100%);
            box-shadow:
                0 0 40px rgba(129, 140, 248, 0.6),
                0 0 80px rgba(167, 139, 250, 0.4),
                0 0 120px rgba(244, 114, 182, 0.2);
            animation: ai-core-float 4s ease-in-out infinite, ai-core-rotate 20s linear infinite;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .ai-core::before {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(129, 140, 248, 0.3), rgba(244, 114, 182, 0.3));
            filter: blur(8px);
            z-index: -1;
        }

        .ai-core-icon {
            width: 32px;
            height: 32px;
            color: white;
        }

        @keyframes ai-core-float {
            0%, 100% { transform: translate(-50%, -50%) translateZ(80px) translateY(0); }
            50% { transform: translate(-50%, -50%) translateZ(80px) translateY(-12px); }
        }

        @keyframes ai-core-rotate {
            from { transform: translate(-50%, -50%) translateZ(80px) rotate(0deg); }
            to { transform: translate(-50%, -50%) translateZ(80px) rotate(360deg); }
        }

        /* 图表动画 */
        @keyframes chart-grow {
            from { transform: scaleY(0); }
            to { transform: scaleY(1); }
        }

        .chart-bar {
            transform-origin: bottom;
            animation: chart-grow 1.5s ease-out forwards;
        }

        .chart-bar:nth-child(1) { animation-delay: 0.1s; }
        .chart-bar:nth-child(2) { animation-delay: 0.2s; }
        .chart-bar:nth-child(3) { animation-delay: 0.3s; }
        .chart-bar:nth-child(4) { animation-delay: 0.4s; }
        .chart-bar:nth-child(5) { animation-delay: 0.5s; }
        .chart-bar:nth-child(6) { animation-delay: 0.6s; }
        .chart-bar:nth-child(7) { animation-delay: 0.7s; }

        /* 折线图动画 */
        @keyframes line-draw {
            from { stroke-dashoffset: 300; }
            to { stroke-dashoffset: 0; }
        }

        .chart-line {
            stroke-dasharray: 300;
            animation: line-draw 2s ease-out forwards;
        }

        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 48px;
        }

        /* Navigation - 状态一：顶部透明背景 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 1000;
            background-color: transparent;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            box-shadow: none;
            border-bottom: 1px solid transparent;
            transition: background-color 0.3s ease-in-out,
                        backdrop-filter 0.3s ease-in-out,
                        box-shadow 0.3s ease-in-out,
                        border-bottom 0.3s ease-in-out;
        }

        /* Navigation - 状态二：滚动后白色背景 */
        .navbar.scrolled {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
        }

        .navbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

        .logo {
            font-size: 20px;
            font-weight: 700;
            color: #1f2937;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.3s ease-in-out;
        }

        /* Logo - 滚动后状态 */
        .navbar.scrolled .logo {
            color: #1f2937;
        }

        .logo-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Logo文字 - 滚动后状态：恢复原渐变色 */
        .navbar.scrolled .logo-text {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            object-fit: contain;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }

        /* 菜单文字 - 顶部状态：深色（适配浅色背景） */
        .nav-links a {
            color: #374151;
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s ease-in-out;
            cursor: pointer;
        }

        /* 菜单文字 - 滚动后状态：深色 */
        .navbar.scrolled .nav-links a {
            color: #1f2937;
        }

        .nav-links a:hover {
            color: #4f46e5;
        }
        .navbar.scrolled .nav-links a:hover {
            color: #4f46e5;
        }

        .nav-links a.active {
            color: #4f46e5;
            font-weight: 600;
        }
        .navbar.scrolled .nav-links a.active {
            color: #4f46e5;
        }

        .nav-links a.nav-link-anchor { position: relative; }
        .nav-links a.nav-link-anchor.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 1px;
        }

        .nav-cta { display: flex; gap: 12px; }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
        }

        /* 登录按钮 - 顶部状态：深色（适配浅色背景） */
        .btn-ghost {
            background: transparent;
            color: #374151;
            border: 1px solid rgba(209, 213, 219, 0.8);
        }

        .btn-ghost:hover {
            background: rgba(243, 244, 246, 0.8);
            border-color: #4f46e5;
            color: #4f46e5;
        }

        /* 登录按钮 - 滚动后状态 */
        .navbar.scrolled .btn-ghost {
            color: #1f2937;
            border: 1px solid rgba(229, 231, 235, 0.8);
        }

        .navbar.scrolled .btn-ghost:hover {
            background: var(--bg-tertiary);
            border-color: #4f46e5;
            color: #4f46e5;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
            transform: translateY(-2px);
        }

        .btn-large {
            padding: 14px 28px;
            font-size: 15px;
            border-radius: 10px;
        }

        .btn-dark {
            background: var(--gradient-hero);
            color: white;
        }

        .btn-dark:hover {
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }

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

        /* Hero区域内的预约演示按钮 - 浅色背景适配 */
        .hero .btn-outline {
            background: #ffffff;
            color: #1d2129;
            border: 1px solid #e5e7eb;
        }

        .hero .btn-outline:hover {
            background: #f9fafb;
            border-color: #4f46e5;
            color: #4f46e5;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transform: translateY(-2px);
        }

        /* Hero Section */
        .hero {
            padding: 140px 0 80px;
            background: #f8fafc;
            position: relative;
            overflow: hidden;
            width: 100%;
            min-height: 600px;
        }

        .hero .container {
            position: relative;
            z-index: 30;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .hero-content {
            max-width: 540px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(99, 102, 241, 0.1);
            padding: 8px 16px;
            border-radius: 100px;
            font-size: 14px;
            color: #4f46e5;
            margin-bottom: 32px;
            font-weight: 500;
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
        }

        .hero h1 {
            font-size: 56px;
            font-weight: 800;
            color: #0f172a;
            margin-bottom: 28px;
            line-height: 1.2;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 18px;
            color: #334155;
            margin-bottom: 40px;
            max-width: 520px;
            line-height: 1.7;
        }

        .hero-buttons {
            display: flex;
            gap: 12px;
            margin-bottom: 32px;
        }

        /* Stats Cards - 宽扁横向矩形，晶莹通透毛玻璃 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            width: 100%;
            max-width: 1100px;
            margin-top: 48px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.4);
            padding: 24px 32px 20px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.06);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            min-width: 0;
            min-height: 88px;
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.5);
            transform: translateY(-6px);
            border-color: rgba(139, 92, 246, 0.25);
            box-shadow: 0 16px 32px -4px rgba(129, 140, 248, 0.12);
        }

        .stat-number-wrapper {
            display: flex;
            justify-content: center;
            align-items: baseline;
            white-space: nowrap;
            margin-bottom: 8px;
            gap: 3px;
        }

        .stat-main {
            font-size: 36px;
            font-weight: 500;
            color: #4338ca;
            background: none;
            -webkit-text-fill-color: #4338ca;
            line-height: 1;
            letter-spacing: -0.01em;
        }

        .stat-unit {
            font-size: 22px;
            font-weight: 500;
            color: #7c3aed;
            opacity: 0.85;
        }

        .stat-desc {
            font-size: 15px;
            color: #374151;
            font-weight: 500;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        /* Platforms Section */
        .platforms {
            padding: 32px 0;
            background: var(--gradient-hero);
            position: relative;
            z-index: 3;
        }

        .platforms-inner {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 80px;
            flex-wrap: wrap;
        }

        .platform-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 15px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .platform-item:hover {
            color: white;
            transform: translateY(-2px);
        }

        .platform-item:hover .platform-icon {
            transform: scale(1.15);
        }

        .platform-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: white;
            transition: transform 0.3s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .platform-taobao { background: #FF5000; }
        .platform-jd { background: #E4393C; }
        .platform-pdd { background: #E02E24; }
        .platform-douyin { background: #000; }
        .platform-kuaishou { background: #FF4906; }

        .platform-pending {
            opacity: 0.75;
        }

        .platform-status {
            font-size: 11px;
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.2);
            color: rgba(255, 255, 255, 0.9);
            margin-left: 4px;
        }

        /* Features Section */
        .features {
            padding: 100px 0;
            background: var(--bg);
            position: relative;
            z-index: 3;
        }

        .section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .section-header h2 {
            font-size: 40px;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg);
            border-radius: 16px;
            padding: 32px;
            border: 1px solid var(--border);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            border-color: transparent;
            box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
            transform: translateY(-8px);
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.1) rotate(-5deg);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: transform 0.3s ease;
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
            color: white;
        }

        .feature-icon.green { background: linear-gradient(135deg, #10B981 0%, #059669 100%); }
        .feature-icon.orange { background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%); }
        .feature-icon.purple { background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%); }
        .feature-icon.blue { background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%); }
        .feature-icon.rose { background: linear-gradient(135deg, #F43F5E 0%, #E11D48 100%); }
        .feature-icon.cyan { background: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%); }

        .feature-card h3 {
            font-size: 18px;
            color: var(--text);
            margin-bottom: 8px;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        /* Benefits Section */
        .benefits {
            padding: 100px 0;
            background: var(--bg-secondary);
            position: relative;
            z-index: 3;
        }

        .benefits-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .benefits-text h2 {
            font-size: 36px;
            color: var(--text);
            margin-bottom: 16px;
        }

        .benefits-text > p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .benefits-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .benefit-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }

        .benefit-check {
            width: 24px;
            height: 24px;
            background: var(--gradient-hero);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .benefit-check svg {
            width: 14px;
            height: 14px;
            color: white;
        }

        .benefit-item h4 {
            font-size: 16px;
            color: var(--text);
            margin-bottom: 2px;
        }

        .benefit-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .benefit-card {
            background: var(--bg);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid var(--border);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            position: relative;
        }

        .benefit-card::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 12px;
            background: var(--gradient-card);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .benefit-card:hover {
            border-color: var(--accent-light);
            box-shadow: 0 12px 24px rgba(99, 102, 241, 0.12);
            transform: translateY(-4px);
        }

        .benefit-card:hover::after {
            opacity: 1;
        }

        .benefit-card:hover .benefit-card-icon {
            background: var(--gradient-hero);
        }

        .benefit-card:hover .benefit-card-icon svg {
            color: white;
        }

        .benefit-card-icon {
            width: 40px;
            height: 40px;
            background: var(--bg-tertiary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .benefit-card-icon svg {
            width: 20px;
            height: 20px;
            color: var(--accent);
        }

        .benefit-card h4 {
            font-size: 15px;
            color: var(--text);
            margin-bottom: 6px;
            position: relative;
            z-index: 1;
        }

        .benefit-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            position: relative;
            z-index: 1;
        }

        /* How It Works */
        .how-it-works {
            padding: 100px 0;
            background: var(--bg);
            position: relative;
            z-index: 3;
        }

        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }

        .steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: var(--border);
        }

        .step {
            text-align: center;
            position: relative;
        }

        .step-number {
            width: 72px;
            height: 72px;
            background: var(--bg-secondary);
            border: 2px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            background: var(--bg);
        }

        .step:hover .step-number {
            background: var(--gradient-hero);
            border-color: transparent;
            color: white;
            transform: scale(1.1);
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
        }

        .step h3 {
            font-size: 16px;
            color: var(--text);
            margin-bottom: 6px;
            transition: color 0.3s ease;
        }

        .step:hover h3 {
            color: var(--accent);
        }

        .step p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* CTA Section */
        .cta {
            padding: 100px 0;
            background: var(--gradient-hero);
            text-align: center;
            position: relative;
            overflow: hidden;
            z-index: 3;
        }

        .cta::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta h2 {
            font-size: 40px;
            color: white;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta p {
            font-size: 16px;
            color: rgba(255,255,255,0.8);
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 12px;
            position: relative;
            z-index: 1;
        }

        .btn-white {
            background: white;
            color: var(--accent);
            font-weight: 600;
        }

        .btn-white:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: white;
            border: 1px solid rgba(255,255,255,0.3);
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.5);
        }

        /* Footer */
        .footer {
            padding: 64px 0 32px;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            position: relative;
            z-index: 3;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .footer-column h4 {
            color: var(--text);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li { margin-bottom: 12px; }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
            cursor: pointer;
        }

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

        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
        }

        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }

        .footer-bottom-links a {
            color: var(--text-light);
            text-decoration: none;
            cursor: pointer;
            transition: color 0.2s;
        }

        .footer-bottom-links a:hover { color: var(--text); }

        /* Responsive */
        @media (max-width: 1024px) {
            .container { padding: 0 32px; }
            .hero-grid { grid-template-columns: 1fr; gap: 48px; }
            .hero-illustration { order: -1; }
            .dashboard-3d { max-width: 360px; height: 300px; }
            .panel-main { width: 260px; height: 200px; }
            .panel-secondary { width: 160px; height: 110px; }
            .ai-core { width: 60px; height: 60px; }
            .hero h1 { font-size: 44px; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 100%; }
            .stat-card { padding: 22px 28px 18px; min-height: 80px; }
            .stat-main { font-size: 32px; }
            .stat-unit { font-size: 20px; }
            .stat-desc { font-size: 14px; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .benefits-content { grid-template-columns: 1fr; gap: 48px; }
            .steps::before { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .container { padding: 0 24px; }
            .navbar .container { height: 64px; }
            .nav-links { display: none; }
            .hero { padding: 100px 0 60px; min-height: auto; }
            .hero-grid { grid-template-columns: 1fr; gap: 32px; }
            .hero-illustration { order: -1; }
            .dashboard-3d { max-width: 280px; height: 240px; }
            .panel-main { width: 200px; height: 160px; padding: 14px; }
            .panel-secondary { width: 130px; height: 90px; padding: 12px; }
            .ai-core { width: 48px; height: 48px; }
            .ai-core-icon { width: 24px; height: 24px; }
            .hero-content { max-width: 100%; }
            .hero-badge { margin-bottom: 24px; }
            .hero h1 { font-size: 36px; margin-bottom: 20px; }
            .hero-desc { font-size: 16px; margin-bottom: 28px; }
            .hero-buttons { flex-direction: column; width: 100%; gap: 16px; margin-bottom: 48px; }
            .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 24px; max-width: 100%; }
            .stat-card { padding: 20px 24px 16px; min-height: 72px; }
            .stat-main { font-size: 28px; }
            .stat-unit { font-size: 18px; }
            .stat-desc { font-size: 13px; }
            .platforms-inner { gap: 24px; }
            .section-header h2 { font-size: 32px; }
            .features-grid { grid-template-columns: 1fr; }
            .benefits-grid { grid-template-columns: 1fr; }
            .steps { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .step-number { width: 56px; height: 56px; font-size: 20px; }
            .cta h2 { font-size: 32px; }
            .cta-buttons { flex-direction: column; width: 100%; max-width: 280px; margin: 0 auto; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
        }

        /* 模态框样式 */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 2000;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal-content {
            background: var(--bg);
            border-radius: 16px;
            max-width: 800px;
            width: 100%;
            max-height: 80vh;
            overflow: hidden;
            position: relative;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            display: flex;
            flex-direction: column;
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 32px;
            border-bottom: 1px solid var(--border);
            flex-shrink: 0;
        }

        .modal-header h2 {
            font-size: 24px;
            color: var(--text);
        }

        .modal-close {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--bg-tertiary);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .modal-close:hover {
            background: var(--border);
        }

        .modal-close svg {
            width: 16px;
            height: 16px;
            color: var(--text-secondary);
        }

        .modal-body {
            padding: 32px;
            line-height: 1.8;
            overflow-y: auto;
            flex: 1;
        }

        .modal-body h3 {
            font-size: 18px;
            color: var(--text);
            margin: 24px 0 12px 0;
        }

        .modal-body h3:first-child {
            margin-top: 0;
        }

        .modal-body p {
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .modal-body ul {
            color: var(--text-secondary);
            margin-bottom: 16px;
            padding-left: 20px;
        }

        .modal-body li {
            margin-bottom: 8px;
        }

        @media (max-width: 768px) {
            .modal-content { max-height: 90vh; }
            .modal-header { padding: 16px 20px; }
            .modal-body { padding: 20px; }
        }