/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000428, #004e92);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    /* 容器 */
    .container {
        max-width: 1440px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 头部 */
    header {
        text-align: center;
        margin-bottom: 40px;
    }

    header h1 {
        font-size: 2.5em;
        margin-bottom: 10px;
        color: #ff6f61;
    }

    header p {
        font-size: 1.2em;
        color: #a0a0a0;
    }

    /* 提示信息 */
    .hint {
        text-align: center;
        font-size: 1em;
        margin-bottom: 30px;
        color: #ffd700;
    }

    /* 卡片容器 */
    .cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-bottom: 50px;
    }

    /* 单个卡片 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 10px 20px rgba(0, 255, 255, 0.5);
    }

    .card-icon {
        font-size: 2em;
        margin-bottom: 10px;
        color: #00ffff;
    }

    .card-title {
        font-size: 1.5em;
        margin-bottom: 10px;
        color: #ffde59;
    }

    .card-description {
        font-size: 1em;
        margin-bottom: 15px;
        color: #d3d3d3;
    }

    .card-data {
        font-size: 0.9em;
        color: #adff2f;
    }

    /* 文章部分 */
    .article-section {
        background: rgba(255, 255, 255, 0.05);
        border-radius: 10px;
        padding: 30px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    }

    .article-section h2 {
        font-size: 2em;
        margin-bottom: 20px;
        color: #00bfff;
    }

    .article-section h3 {
        font-size: 1.5em;
        margin-top: 20px;
        margin-bottom: 10px;
        color: #ff8c00;
    }

    .article-section h4 {
        font-size: 1.2em;
        margin-top: 15px;
        margin-bottom: 8px;
        color: #7fffd4;
    }

    .article-section p {
        margin-bottom: 15px;
        color: #c0c0c0;
    }

    .article-section pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .article-section code {
        color: #00ff7f;
        font-family: 'Courier New', Courier, monospace;
    }

    .article-section table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    .article-section th, .article-section td {
        border: 1px solid #555555;
        padding: 10px;
        text-align: left;
    }

    .article-section th {
        background: #333333;
        color: #ffffff;
    }

    .article-section td {
        background: #2e2e2e;
        color: #dddddd;
    }

    /* 图片样式 */
    .gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 30px;
    }

    .gallery img {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.2em;
        }

        .article-section h2 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 1200px) {
        .cards {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }

        .card-title {
            font-size: 1.3em;
        }
    }

    @media (max-width: 1024px) {
        .cards {
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        }

        .article-section {
            padding: 20px;
        }
    }

    @media (max-width: 768px) {
        .cards {
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        }

        header h1 {
            font-size: 1.8em;
        }

        .article-section h2 {
            font-size: 1.5em;
        }
    }

    @media (max-width: 480px) {
        .cards {
            grid-template-columns: 1fr;
        }

        .card {
            padding: 15px;
        }

        .article-section {
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.5em;
        }

        .card-title {
            font-size: 1.1em;
        }

        .article-section h2 {
            font-size: 1.2em;
        }
    }

    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    body {
        animation: aurora-move 15s linear infinite;
        background-size: 200% 200%;
    }

    /* 链接样式 */
    a {
        color: #00ced1;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }