body {
            background-color: #f8f9fa;
            color: #333;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        .navbar {
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            background-color: white;
        }
        
        .navbar-brand img {
            max-height: 40px;
        }
        
        .hero-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            margin-bottom: 60px;
        }
        
        /* 特点卡片样式 */
        .feature-card {
            transition: all 0.3s ease;
            border: none;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            height: 200px;
            position: relative;
            overflow: hidden;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            position: absolute;
            right: 15px;
            top: 15px;
            font-size: 4rem;
            color: rgba(0, 123, 255, 0.3);
            transition: color 0.3s ease;
            z-index: 1;
        }
        
        .feature-card:hover .feature-icon {
            color: #007bff;
        }
        
        .feature-content {
            padding: 25px;
            padding-right: 100px;
            padding-top: 30px;
            position: relative;
            z-index: 2;
        }
        
        .btn-primary {
            background-color: #007bff;
            border-color: #007bff;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            background-color: #0056b3;
            border-color: #0056b3;
        }
        
        .footer {
            background-color: #343a40;
            color: white;
            padding: 40px 0 20px;
            margin-top: 60px;
        }
        
        .footer a {
            color: #ccc;
            transition: color 0.3s;
        }
        
        .footer a:hover {
            color: white;
            text-decoration: none;
        }
        
        /* 会员套餐样式 - 横向排列带间距和动效 */
        #packages {
            padding: 80px 20px;
            overflow: hidden; /* 防止卡片动画超出容器 */
        }
        
        #packages .package-container {
            display: flex;
            justify-content: center;
            align-items: stretch;
            flex-wrap: wrap;
            gap: 30px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px 0;
            box-sizing: border-box;
        }
        
        #packages .package-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            overflow: hidden;
            position: relative;
            flex: 1;
            min-width: 280px;
            max-width: 380px;
            padding-top: 15px;
            box-sizing: border-box;
            transform: translateY(0);
            opacity: 0.9;
        }
        
        /* 卡片动效 */
        #packages .package-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            opacity: 1;
        }
        
        /* 最受欢迎卡片特殊样式 */
        #packages .package-card.popular {
            border: 3px solid #007bff;
            z-index: 10;
            margin: 0 5px;
            transform: translateY(0) scale(1.03);
            opacity: 1;
        }
        
        #packages .package-card.popular:hover {
            transform: translateY(-10px) scale(1.05);
            box-shadow: 0 20px 35px rgba(0, 123, 255, 0.15);
        }
        
        #packages .package-card.popular::before {
            content: '最受欢迎';
            position: absolute;
            top: 2px;
            left: 70%;
            transform: translateX(-50%);
            background-color: #007bff;
            color: white;
            padding: 2px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            z-index: 5;
        }
        
        #packages .package-header {
            padding: 24px;
        }
        
        #packages .package-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #1a202c;
            transition: color 0.3s;
        }
        
        #packages .package-card:hover .package-title {
            color: #007bff;
        }
        
        #packages .package-description {
            color: #718096;
            font-size: 0.9rem;
            margin-bottom: 16px;
        }
        
        #packages .package-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: #1a202c;
            margin-bottom: 24px;
            transition: transform 0.3s;
        }
        
        #packages .package-card:hover .package-price {
            transform: scale(1.05);
        }
        
        #packages .package-features {
            padding: 0 24px 24px;
        }
        
        #packages .package-features li {
            margin-bottom: 12px;
            color: #4a5568;
            display: flex;
            align-items: flex-start;
            transition: transform 0.2s;
        }
        
        #packages .package-card:hover .package-features li {
            transform: translateX(5px);
        }
        
        #packages .package-features li i {
            color: #38a169;
            margin-right: 10px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        
        #packages .package-cta {
            padding: 0 24px 24px;
        }
        
        #packages .package-cta a {
            display: block;
            width: 100%;
            padding: 12px;
            text-align: center;
            border-radius: 6px;
            font-weight: 600;
            transition: all 0.3s ease;
            text-decoration: none;
            transform: scale(1);
        }
        
        #packages .package-card:hover .package-cta a {
            transform: scale(1.05);
        }
        
        #packages .package-cta a.primary {
            background-color: #007bff;
            color: white;
        }
        
        #packages .package-cta a.primary:hover {
            background-color: #0056b3;
            box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
        }
        
        #packages .package-cta a.secondary {
            background-color: #f7fafc;
            color: #007bff;
            border: 1px solid #007bff;
        }
        
        #packages .package-cta a.secondary:hover {
            background-color: #edf2f7;
            box-shadow: 0 4px 12px rgba(0, 123, 255, 0.2);
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            #packages .package-card {
                max-width: 100%;
                margin-bottom: 30px;
            }
            
            #packages .package-card.popular {
                transform: none;
                margin: 0 0 30px 0;
            }
            
            #packages .package-card.popular:hover {
                transform: translateY(-10px);
            }
        }
        
        /* 统计数据样式 */
        .stats-section {
            background-color: white;
            padding: 40px 0;
            margin: 60px 0;
        }
        
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: bold;
            color: #007bff;
            margin-bottom: 10px;
        }
        
        .stat-label {
            color: #666;
            font-size: 1.1rem;
        }
        
        /* 备案图标样式 */
        .beian-icon {
            display: inline-block;
            width: 16px;
            height: 16px;
            margin-right: 5px;
            vertical-align: middle;
        }