/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #000046, #1cb5e0);
        color: white;
        font-family: 'Poppins', sans-serif;
        line-height: 1.6;
        overflow-x: hidden;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 标题样式 */
    h1, h2, h3 {
        font-family: 'Poppins', sans-serif;
        color: #ffffff;
        text-align: center;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 3rem;
        font-weight: bold;
        margin-top: 40px;
    }

    h2 {
        font-size: 2.5rem;
        margin-top: 30px;
    }

    h3 {
        font-size: 2rem;
        margin-top: 25px;
    }

    /* 段落样式 */
    p {
        font-family: 'Roboto', sans-serif;
        font-size: 1rem;
        margin-bottom: 15px;
    }

    /* 强调样式 */
    b {
        color: #ff5722;
    }

    i {
        color: #00bcd4;
    }

    /* 代码块样式 */
    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00e676;
        background: rgba(0, 0, 0, 0.5);
        padding: 2px 4px;
        border-radius: 4px;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    th, td {
        border: 1px solid #ffffff;
        padding: 10px;
        text-align: left;
    }

    th {
        background: rgba(255, 255, 255, 0.2);
    }

    /* 链接样式 */
    a {
        color: #03dac6;
        text-decoration: none;
        position: relative;
    }

    a::after {
        content: '';
        position: absolute;
        width: 100%;
        transform: scaleX(0);
        height: 2px;
        bottom: 0;
        left: 0;
        background-color: #03dac6;
        transform-origin: bottom right;
        transition: transform 0.25s ease-out;
    }

    a:hover::after {
        transform: scaleX(1);
        transform-origin: bottom left;
    }

    /* 图片样式 */
    img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        margin-bottom: 20px;
    }

    /* 表格响应式 */
    @media (max-width: 768px) {
        table, thead, tbody, th, td, tr {
            display: block;
        }

        th, td {
            padding: 10px;
            text-align: right;
            position: relative;
        }

        th::before, td::before {
            content: attr(data-label);
            position: absolute;
            left: 10px;
            width: 50%;
            padding-right: 10px;
            white-space: nowrap;
            text-align: left;
            font-weight: bold;
        }
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        margin: 10px 0;
        background: #ff5722;
        color: white;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: background 0.3s ease;
    }

    .btn:hover {
        background: #e64a19;
    }

    .btn::after {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: -100%;
        background: rgba(255, 255, 255, 0.2);
        transform: skewX(-45deg);
        transition: left 0.3s ease;
    }

    .btn:hover::after {
        left: 100%;
    }

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

    .aurora {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        height: 200px;
        border-radius: 50%;
        margin: 40px 0;
    }

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(20px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .fade-in-section {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeIn 1s ease-in-out forwards;
        animation-delay: 0.5s;
    }

    /* 流动粒子效果 */
    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background: white;
        border-radius: 50%;
        animation: move 5s infinite linear;
    }

    @keyframes move {
        0% { transform: translateX(-100%); }
        100% { transform: translateX(100%); }
    }

    /* 响应式设计 */
    @media (max-width: 320px) {
        h1 {
            font-size: 2rem;
        }

        h2 {
            font-size: 1.5rem;
        }

        h3 {
            font-size: 1.2rem;
        }

        p {
            font-size: 0.9rem;
        }

        .container {
            padding: 10px;
        }
    }

    @media (min-width: 1440px) {
        body {
            font-size: 1.2rem;
        }

        h1 {
            font-size: 3.5rem;
        }

        h2 {
            font-size: 2.8rem;
        }

        h3 {
            font-size: 2.2rem;
        }
    }

    /* 表格样式增强 */
    th, td {
        border: 1px solid rgba(255,255,255,0.3);
    }

    th {
        background: rgba(255, 255, 255, 0.3);
    }

    /* 代码块样式增强 */
    pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 20px;
        border-radius: 8px;
        overflow-x: auto;
    }

    code {
        color: #00e676;
        font-size: 0.95rem;
    }

    /* 列表样式 */
    ul {
        list-style: none;
        padding: 0;
    }

    ul li {
        background: rgba(255, 255, 255, 0.1);
        margin: 10px 0;
        padding: 15px;
        border-radius: 8px;
        display: flex;
        align-items: center;
    }

    ul li span {
        font-size: 1.5rem;
        margin-right: 10px;
    }

    /* 图标颜色渐变 */
    .icon-gradient {
        background: linear-gradient(45deg, #ff4081, #3f51b5);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    /* 引用样式 */
    blockquote {
        border-left: 4px solid #03dac6;
        padding-left: 15px;
        margin: 20px 0;
        color: #b0bec5;
        font-style: italic;
    }

    /* 提示语样式 */
    .reference-note {
        text-align: center;
        font-size: 1.2rem;
        margin: 30px 0;
        color: #ffeb3b;
    }

    /* 图文并茂布局 */
    .image-text {
        display: flex;
        align-items: center;
        margin: 20px 0;
    }

    .image-text img {
        width: 50%;
        margin-right: 20px;
    }

    .image-text div {
        width: 50%;
    }

    @media (max-width: 768px) {
        .image-text {
            flex-direction: column;
        }

        .image-text img, .image-text div {
            width: 100%;
            margin: 0;
        }
    }