/* 基础样式 */
        /* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4eaf1 100%);
            color: #3a3f5c;
            line-height: 1.6;
            min-height: 100vh;
            padding: 20px;
        }*/
        
        /* 布局容器 */
        .premium-container {
            max-width: 1200px;
            margin: 25px auto;
            display: flex;
            gap: 25px;
        }
        
        .premium-content-area {
            flex: 1;
            display: flex;
            gap: 25px;
        }
        
        /* 主内容区域 */
        .premium-main {
            flex: 1;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            border: 1px solid #e1e8f0;
        }
        
        /* 内容头部 */
        .premium-header {
            background: linear-gradient(135deg, #4a6fa1 0%, #2c3e50 100%);
            padding: 20px 30px;
            color: #e9ecef;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            border-bottom: 1px solid #d1d9e6;
        }
        
        .premium-title {
            font-size: 26px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: #f8f9fa;
        }
.premium-breadcrumb {
    background: rgba(255, 255, 255, 0.12);
    padding: 8px 16px;
    border-radius: 6px;
    /*font-size: 13px;*/
    color: #f8f9fa;
   
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 500; /* 添加字体加粗 */
}
        
        /* 内容主体 */
        .premium-body {
            padding: 30px;
            line-height: 1.8;
            font-size: 16px;
            color: #4a5568;
        }
        
        .premium-body h2 {
            font-size: 22px;
            color: #2d3748;
            margin: 28px 0 18px 0;
            padding-bottom: 10px;
            border-bottom: 1px solid #e2e8f0;
            font-weight: 600;
        }
        
        .premium-body p {
            margin-bottom: 18px;
            text-align: justify;
        }
        
        .premium-body a {
            color: #4a6fa1;
            text-decoration: none;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        
        .premium-body a:hover {
            color: #3a5e8c;
            text-decoration: underline;
        }
        
        .premium-body img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 18px 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);
            border: 1px solid #e2e8f0;
        }
        
        .premium-body blockquote {
            border-left: 4px solid #4a6fa1;
            padding: 18px;
            margin: 22px 0;
            color: #4a5568;
            background: #f8fafc;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            border-right: 1px solid #e2e8f0;
            border-top: 1px solid #e2e8f0;
            border-bottom: 1px solid #e2e8f0;
        }
        
        /* 特性卡片 */
        .premium-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 18px;
            margin: 30px 0;
        }
        
        .premium-feature {
            background: #f8fafc;
            border-radius: 10px;
            padding: 22px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-left: 4px solid #4a6fa1;
            border: 1px solid #e2e8f0;
        }
        
        .premium-feature:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.07);
            border-color: #c5d3e6;
        }
        
        .feature-title {
            font-size: 17px;
            color: #2d3748;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }
        
        .feature-title i {
            color: #4a6fa1;
            font-size: 18px;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .premium-content-area {
                flex-direction: column;
            }
        }
        
        @media (max-width: 768px) {
            .premium-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                padding: 18px 20px;
            }
            
            .premium-features {
                grid-template-columns: 1fr;
            }
            
            .premium-body {
                padding: 20px 18px;
            }
            
            .premium-title {
                font-size: 22px;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(15px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .premium-main {
            animation: fadeInUp 0.7s ease-out;
        }
        
        .premium-feature {
            animation: fadeInUp 0.5s ease-out;
        }
        
        /* 辅助类 
        .w1100 {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
        }*/
        
        .right {
            float: right;
        }
        
        .clearfix::after {
            content: "";
            display: table;
            clear: both;
        }