/* 基本样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: radial-gradient(circle at top left, #1a2a6c, #b21f1f, #fdbb2d);
        color: #fff;
        line-height: 1.6;
        padding: 20px;
    }

    header {
        text-align: center;
        padding: 50px 20px;
        background: linear-gradient(135deg, #00008B, #FFD700);
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        margin-bottom: 40px;
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 3em;
        text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.7);
        margin-bottom: 20px;
    }

    header p {
        font-size: 1.2em;
        color: #f0e68c;
    }

    main {
        max-width: 1200px;
        margin: 0 auto;
    }

    article {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        margin-bottom: 40px;
    }

    article h2, article h3, article h4 {
        color: #FFD700;
        margin-bottom: 15px;
    }

    article h2 {
        font-size: 2.5em;
        text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
    }

    article h3 {
        font-size: 1.8em;
    }

    article h4 {
        font-size: 1.5em;
    }

    article p {
        margin-bottom: 20px;
        font-size: 1em;
        color: #f0f0f0;
    }

    article pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    article code {
        font-family: 'Courier New', Courier, monospace;
        color: #00FF7F;
    }

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

    table, th, td {
        border: 1px solid #FFD700;
    }

    th, td {
        padding: 10px;
        text-align: left;
    }

    th {
        background: rgba(255, 215, 0, 0.5);
    }

    .projects {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
    }

    .project-card {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        width: calc(33.333% - 20px);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease-in-out;
        overflow: hidden;
    }

    .project-card:hover {
        transform: scale(1.05);
    }

    .project-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    .project-content {
        padding: 15px;
    }

    .project-content h4 {
        margin-bottom: 10px;
        color: #FFD700;
    }

    .project-content p {
        font-size: 0.9em;
        margin-bottom: 10px;
    }

    .project-content a {
        display: inline-block;
        padding: 8px 15px;
        background: #00FF7F;
        color: #000;
        border-radius: 5px;
        text-decoration: none;
        transition: background 0.3s;
    }

    .project-content a:hover {
        background: #32CD32;
    }

    .footer {
        text-align: center;
        padding: 20px;
        background: linear-gradient(135deg, #00008B, #FFD700);
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .project-card {
            width: calc(33.333% - 20px);
        }
    }

    @media (max-width: 1200px) {
        .project-card {
            width: calc(50% - 20px);
        }
    }

    @media (max-width: 768px) {
        .project-card {
            width: 100%;
        }

        header h1 {
            font-size: 2.5em;
        }

        article h2 {
            font-size: 2em;
        }
    }

    @media (max-width: 480px) {
        header {
            padding: 30px 10px;
        }

        header h1 {
            font-size: 2em;
        }

        article {
            padding: 20px;
        }

        table, th, td {
            font-size: 0.8em;
        }

        .project-card img {
            height: 150px;
        }
    }

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

        article h2 {
            font-size: 1.8em;
        }

        .project-content a {
            padding: 6px 10px;
            font-size: 0.8em;
        }
    }