:root {
            --tencent-blue: #0052D9;
            --tencent-blue-dark: #003CAB;
            --aws-orange: #FF9900;
            --aws-orange-dark: #EC7211;
            --gradient-primary: linear-gradient(135deg, var(--tencent-blue) 0%, var(--aws-orange) 100%);
            --gradient-hero: linear-gradient(135deg, #0052D9 0%, #1a6fe8 50%, #FF9900 100%);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #fff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 0 0.75rem 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.5rem;
            font-weight: 700;
            text-decoration: none;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
        }

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

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-menu a {
            text-decoration: none;
            color: #64748b;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-menu a:hover {
            color: var(--tencent-blue);
        }

        .nav-buttons {
            display: flex;
            gap: 1rem;
        }

        .btn {
            padding: 0.5rem 1.5rem;
            border: none;
            border-radius: 6px;
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline {
            background: transparent;
            color: var(--tencent-blue);
            border: 2px solid var(--tencent-blue);
        }

        .btn-outline:hover {
            background: var(--tencent-blue);
            color: white;
        }

        .btn-primary {
            background: var(--tencent-blue);
            color: white;
        }

        .btn-primary:hover {
            background: var(--tencent-blue-dark);
            transform: translateY(-1px);
        }

        .btn-orange {
            background: var(--aws-orange);
            color: white;
        }

        .btn-orange:hover {
            background: var(--aws-orange-dark);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.8);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: white;
            transform: translateY(-2px);
        }

        /* 英雄区域 */
        .hero {
            background: var(--gradient-hero);
            color: white;
            padding: 120px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="rgba(255,255,255,0.15)"/><stop offset="100%" stop-color="rgba(255,255,255,0)"/></radialGradient></defs><circle cx="150" cy="200" r="120" fill="url(%23a)"/><circle cx="850" cy="150" r="100" fill="url(%23a)"/><circle cx="500" cy="400" r="180" fill="url(%23a)"/><circle cx="200" cy="600" r="80" fill="url(%23a)"/><circle cx="800" cy="550" r="140" fill="url(%23a)"/></svg>');
            opacity: 0.5;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -10%;
            right: -10%;
            height: 100px;
            background: white;
            border-radius: 50% 50% 0 0;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 3rem;
        }

        .btn-large {
            padding: 1rem 2rem;
            font-size: 1.1rem;
        }

        .btn-white {
            background: white;
            color: #2563eb;
        }

        .btn-white:hover {
            background: #f8fafc;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }

        /* 特性统计 */
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            opacity: 0.9;
        }

        .cloud-providers {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .provider-label {
            opacity: 0.8;
            font-size: 0.95rem;
        }

        .provider-icons {
            display: flex;
            gap: 0.75rem;
        }

        .provider-badge {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .provider-badge.tencent {
            background: rgba(255, 255, 255, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .provider-badge.aws {
            background: rgba(255, 153, 0, 0.3);
            border: 1px solid rgba(255, 153, 0, 0.6);
        }

        .provider-badge i {
            font-size: 1.2rem;
        }

        .provider-badge .tencent-cloud-icon {
            width: 1.2rem;
            height: 1.2rem;
            filter: brightness(0) invert(1);
        }

        /* 功能特色区域 */
        .features {
            padding: 100px 0;
            background: #f8fafc;
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 1rem;
        }

        .section-subtitle {
            font-size: 1.2rem;
            color: #64748b;
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            position: relative;
        }

        .feature-icon::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: 12px;
            background: var(--gradient-primary);
            opacity: 0.15;
            transform: scale(1.3);
            z-index: -1;
        }

        .feature-icon i {
            font-size: 1.5rem;
            color: white;
        }

        .feature-card:nth-child(even) .feature-icon {
            background: linear-gradient(135deg, var(--aws-orange) 0%, var(--tencent-blue) 100%);
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #1e293b;
        }

        .feature-description {
            color: #64748b;
            line-height: 1.7;
        }

        /* 价格方案区域 */
        .pricing {
            padding: 100px 0;
            background: white;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .pricing-card {
            background: white;
            border: 2px solid #e2e8f0;
            border-radius: 16px;
            padding: 2.5rem;
            text-align: center;
            position: relative;
            transition: all 0.3s ease;
        }

        .pricing-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .pricing-card.featured {
            border-color: var(--aws-orange);
            transform: scale(1.05);
            box-shadow: 0 10px 40px rgba(255, 153, 0, 0.2);
        }

        .pricing-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--aws-orange);
            color: white;
            padding: 0.5rem 1.5rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }

        .pricing-plan {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 1rem;
        }

        .pricing-price {
            font-size: 2rem;
            font-weight: 700;
            color: var(--tencent-blue);
            margin-bottom: 0.5rem;
        }

        .pricing-card.featured .pricing-price {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .pricing-period {
            color: #64748b;
            margin-bottom: 2rem;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .pricing-features li {
            padding: 0.5rem 0;
            color: #64748b;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .pricing-features li i {
            color: #10b981;
        }

        /* CTA区域 */
        .cta {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 50%, rgba(0, 82, 217, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 153, 0, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .cta-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 页脚 */
        .footer {
            background: #1e293b;
            color: white;
            padding: 60px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            margin-bottom: 0.5rem;
        }

        .footer-section h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #f1f5f9;
        }

        .footer-section p,
        .footer-section a {
            color: #94a3b8;
            text-decoration: none;
            line-height: 1.8;
        }

        .footer-section a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 2rem;
            text-align: center;
            color: #94a3b8;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero-subtitle {
                font-size: 1.1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .stats {
                grid-template-columns: repeat(2, 1fr);
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .pricing-grid {
                grid-template-columns: 1fr;
            }

            .pricing-card.featured {
                transform: none;
            }

            .section-title {
                font-size: 2rem;
            }
        }

        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }