/* 基本样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ecf0f1;
        line-height: 1.6;
    }
    h1, h2, h3, h4 {
        font-family: 'Orbitron', sans-serif;
        color: #f39c12;
    }
    a {
        color: #1abc9c;
        text-decoration: none;
        rel: nofollow;
    }
    a:hover {
        text-decoration: underline;
    }
    /* 容器 */
    .container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 20px;
    }
    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
        overflow: hidden;
    }
    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 20px rgba(0,0,0,0.5);
    }
    .card::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: linear-gradient(45deg, rgba(255, 152, 0, 0.3), transparent);
        transition: opacity 0.3s;
        opacity: 0;
    }
    .card:hover::before {
        opacity: 1;
    }
    /* 导航栏 */
    nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(44, 62, 80, 0.9);
        padding: 10px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }
    nav .logo {
        font-size: 1.5em;
        color: #f1c40f;
    }
    nav ul {
        list-style: none;
        display: flex;
    }
    nav ul li {
        margin-left: 20px;
    }
    /* 响应式设计 */
    @media (max-width: 768px) {
        nav ul {
            display: none;
        }
        .mobile-nav {
            display: block;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 60px;
            right: 20px;
            background: rgba(44, 62, 80, 0.95);
            padding: 10px;
            border-radius: 5px;
        }
        .mobile-menu.active {
            display: block;
        }
        .container {
            grid-template-columns: 1fr;
        }
    }
    /* 文章样式 */
    .article {
        background: rgba(44, 62, 80, 0.8);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    }
    .article pre {
        background: #2c3e50;
        padding: 10px;
        border-radius: 5px;
        overflow-x: auto;
    }
    /* 提示语 */
    .hint {
        text-align: center;
        margin: 20px 0;
        font-size: 1.2em;
        color: #e67e22;
    }