/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0D1B2A, #1B263B);
        color: #FFFFFF;
        overflow-x: hidden;
    }
    
    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 2rem 0;
    }
    
    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        backdrop-filter: blur(10px);
        background: rgba(13, 27, 42, 0.7);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }
    
    .navbar ul {
        list-style: none;
        display: flex;
        justify-content: flex-end;
        padding: 1rem;
    }
    
    .navbar li {
        margin-left: 2rem;
    }
    
    .navbar a {
        text-decoration: none;
        color: #FFFFFF;
        font-size: 1rem;
        transition: color 0.3s ease;
    }
    
    .navbar a:hover {
        color: #FFD700;
    }
    
    /* 标题 */
    .title {
        font-size: 3rem;
        text-align: center;
        margin: 4rem 0 2rem 0;
        text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    }
    
    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        border-radius: 15px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.3);
        padding: 2rem;
        margin: 2rem 0;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    
    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 60px rgba(0, 0, 0, 0.2);
    }
    
    /* 按钮样式 */
    .button {
        background-color: #007BFF;
        color: white;
        padding: 0.75rem 1.5rem;
        border: none;
        border-radius: 25px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s ease;
        font-size: 1rem;
    }
    
    .button:hover {
        background-color: #0056b3;
        transform: scale(1.05);
    }
    
    /* 图片样式 */
    .image-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 1rem;
        margin: 2rem 0;
    }
    
    .image-grid img {
        width: 100%;
        border-radius: 10px;
    }
    
    /* 文章样式 */
    article {
        background: rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(10px);
        padding: 2rem;
        border-radius: 15px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        margin: 2rem 0;
    }
    
    article h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
    }
    
    article h3 {
        font-size: 2rem;
        margin-top: 1.5rem;
        color: #FFD700;
    }
    
    article h4 {
        font-size: 1.75rem;
        margin-top: 1rem;
        color: #8A2BE2;
    }
    
    article p {
        line-height: 1.6;
        margin: 1rem 0;
    }
    
    article ul, article ol {
        margin: 1rem 0 1rem 2rem;
    }
    
    article table {
        width: 100%;
        border-collapse: collapse;
        margin: 1rem 0;
    }
    
    article table, article th, article td {
        border: 1px solid #FFFFFF;
    }
    
    article th, article td {
        padding: 0.75rem;
        text-align: left;
    }
    
    article pre {
        background: #1B263B;
        padding: 1rem;
        border-radius: 10px;
        overflow-x: auto;
    }
    
    article code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
    }
    
    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }
    
    .aurora {
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(255,87,34,0) 70%);
        animation: aurora-move 15s linear infinite;
    }
    
    /* 响应式设计 */
    @media (max-width: 320px) {
        .title {
            font-size: 2rem;
        }
        .navbar ul {
            flex-direction: column;
            align-items: center;
        }
        .navbar li {
            margin: 1rem 0;
        }
    }
    
    @media (max-width: 480px) {
        .card {
            padding: 1rem;
        }
        .button {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
        }
    }
    
    @media (max-width: 768px) {
        .container {
            width: 95%;
        }
        .image-grid {
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        }
    }
    
    @media (max-width: 1024px) {
        .title {
            font-size: 2.5rem;
        }
        article h2 {
            font-size: 2rem;
        }
    }
    
    @media (max-width: 1200px) {
        .image-grid {
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        }
    }
    
    @media (min-width: 1440px) {
        .title {
            font-size: 3.5rem;
        }
    }