@import url('https://fonts.googleapis.com/css2?family=Roboto&family=Bebas+Neue&display=swap');

    /* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #00008B, #32CD32);
        color: #333333;
        line-height: 1.6;
    }

    /* 标题样式 */
    h1, h2, h3 {
        font-family: 'Bebas Neue', cursive;
        color: #FFFFFF;
    }

    h1 {
        font-size: 3em;
        text-align: center;
        margin: 20px 0;
    }

    h2 {
        font-size: 2.5em;
        margin: 40px 0 20px;
    }

    h3 {
        font-size: 2em;
        margin: 30px 0 15px;
    }

    /* 段落样式 */
    p {
        font-size: 1.1em;
        margin: 15px 0;
        padding: 0 10px;
        color: #FFFFFF;
    }

    /* 链接样式 */
    a {
        color: #32CD32;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 按钮样式 */
    .button {
        position: relative;
        display: inline-block;
        padding: 10px 20px;
        margin: 20px 0;
        background-color: #6A5ACD;
        color: #FFFFFF;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        overflow: hidden;
        transition: transform 0.3s ease;
    }

    .button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: width 0.5s ease, height 0.5s ease;
    }

    .button:hover::before {
        width: 200%;
        height: 200%;
    }

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

    /* 网格布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 20px;
    }

    .grid-item {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.3);
    }

    /* 卡片样式 */
    .card {
        background-color: #ffffff;
        box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.3);
        border-radius: 10px;
        padding: 20px;
        background-color: rgba(255, 255, 255, 0.2);
    }

    /* 图片样式 */
    .responsive-img {
        width: 100%;
        height: auto;
        border-radius: 10px;
        margin: 10px 0;
    }

    /* 代码块样式 */
    pre {
        background-color: rgba(0, 0, 0, 0.7);
        color: #32CD32;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Roboto', monospace;
        margin: 20px 0;
    }

    code {
        font-family: 'Roboto', monospace;
    }

    /* 提示条样式 */
    .alert {
        background-color: rgba(255, 255, 255, 0.3);
        color: #FFFFFF;
        padding: 10px;
        text-align: center;
        font-size: 1.2em;
        margin: 20px 10px;
        border-radius: 5px;
    }

    /* 自适应布局 */
    @media (max-width: 320px) {
        h1 {
            font-size: 2em;
        }
        h2 {
            font-size: 1.8em;
        }
        h3 {
            font-size: 1.5em;
        }
        p {
            font-size: 1em;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 2.5em;
        }
        h2 {
            font-size: 2em;
        }
        h3 {
            font-size: 1.7em;
        }
        p {
            font-size: 1.05em;
        }
    }

    @media (max-width: 768px) {
        .grid-container {
            grid-template-columns: 1fr;
        }
    }

    @media (min-width: 769px) and (max-width: 1024px) {
        .grid-container {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (min-width: 1025px) and (max-width: 1200px) {
        .grid-container {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    @media (min-width: 1201px) and (max-width: 1440px) {
        .grid-container {
            grid-template-columns: repeat(4, 1fr);
        }
    }

    @media (min-width: 1441px) {
        .grid-container {
            grid-template-columns: repeat(6, 1fr);
        }
    }