/* 全局样式设置 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        font-family: 'Roboto Mono', monospace;
        overflow-x: hidden;
    }

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

    /* 标题样式 */
    header {
        text-align: center;
        padding: 50px 20px 20px 20px;
        background: radial-gradient(circle, rgba(255,87,34,0.8), transparent);
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 3em;
        margin: 0;
        color: #ffffff;
        text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
    }

    /* 导航栏样式 */
    nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(10px);
        display: flex;
        justify-content: center;
        padding: 10px 0;
        z-index: 1000;
    }

    nav a {
        color: #ffffff;
        text-decoration: none;
        margin: 0 15px;
        font-size: 1em;
        transition: color 0.3s ease;
    }

    nav a:hover {
        color: #ff5733;
    }

    /* 主内容区 */
    .container {
        max-width: 1200px;
        margin: 150px auto 50px auto;
        padding: 20px;
    }

    /* 卡片式布局 */
    .cards {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 15px;
        width: 300px;
        margin: 20px;
        padding: 20px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .card:hover {
        transform: translateY(-15px);
        box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
    }

    .card img {
        width: 100%;
        border-radius: 10px;
    }

    .card h3 {
        margin-top: 15px;
        font-size: 1.5em;
        color: #ffcc00;
    }

    .card p {
        font-size: 1em;
        line-height: 1.6;
        margin: 10px 0;
    }

    .card .overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        opacity: 0;
        transition: opacity 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .card:hover .overlay {
        opacity: 1;
    }

    .card .overlay p {
        padding: 20px;
        font-size: 0.9em;
        color: #ffffff;
    }

    /* 示例展示区 */
    .sample-display {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 30px;
        margin-top: 50px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .sample-display h2 {
        text-align: center;
        color: #00ffcc;
        margin-bottom: 20px;
    }

    .sample-display article {
        max-height: 500px;
        overflow-y: auto;
        padding-right: 10px;
    }

    .sample-display pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
    }

    .sample-display code {
        color: #00ffcc;
        font-family: 'Courier New', Courier, monospace;
    }

    /* Footer样式 */
    footer {
        text-align: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.5);
        color: #ffffff;
        position: relative;
    }

    /* 响应式设计 */
    @media (max-width: 320px) {
        .card {
            width: 100%;
            margin: 10px 0;
        }

        header h1 {
            font-size: 2em;
        }

        nav a {
            margin: 0 10px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        .cards {
            flex-direction: column;
            align-items: center;
        }

        .card {
            width: 90%;
        }
    }

    @media (max-width: 768px) {
        .cards {
            flex-direction: row;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .card {
            width: 45%;
        }
    }

    @media (max-width: 1024px) {
        .card {
            width: 30%;
        }
    }

    @media (min-width: 1200px) {
        .card {
            width: 22%;
        }
    }

    @media (min-width: 1440px) {
        .card {
            width: 20%;
        }
    }

    /* 动态粒子效果 */
    .particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: transparent;
        z-index: -1;
    }

    /* 半透明导航菜单 */
    .floating-menu {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background: rgba(255, 255, 255, 0.1);
        padding: 10px 20px;
        border-radius: 25px;
        backdrop-filter: blur(10px);
    }

    .floating-menu a {
        color: #ffffff;
        text-decoration: none;
        margin: 0 10px;
        font-size: 1em;
        transition: color 0.3s ease;
    }

    .floating-menu a:hover {
        color: #ff5733;
    }

    /* 提示文本样式 */
    .reference-note {
        text-align: center;
        font-size: 1.2em;
        color: #00ffcc;
        margin-top: 40px;
    }