/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: radial-gradient(circle, #181E3B, #000000);
        color: #FFFFFF;
        line-height: 1.6;
        overflow-x: hidden;
    }

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

    /* 头部 */
    header {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(24, 30, 59, 0.9);
        padding: 10px 0;
        z-index: 1000;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }

    header .logo {
        font-size: 24px;
        font-weight: bold;
        color: #FFFFFF;
        text-align: center;
    }

    /* 导航栏 */
    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-top: 10px;
    }

    nav a {
        color: #C4C4C4;
        text-decoration: none;
        font-size: 16px;
        transition: color 0.3s ease, transform 0.3s ease;
    }

    nav a:hover {
        color: #D9534F;
        transform: scale(1.1);
    }

    /* 主内容 */
    main {
        padding-top: 80px;
        padding-bottom: 40px;
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 20px;
        margin: 20px 0;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        background: rgba(255, 255, 255, 0.15);
    }

    /* 按钮样式 */
    .button-primary {
        background-color: #D9534F;
        border: none;
        color: #FFFFFF;
        padding: 10px 20px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .button-primary:hover {
        background-color: #C9302C;
        transform: scale(1.05);
    }

    .button-success {
        background-color: #4CAF50;
        border: none;
        color: #FFFFFF;
        padding: 10px 20px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .button-success:hover {
        background-color: #45A049;
        transform: scale(1.05);
    }

    /* 标题样式 */
    h1, h2, h3, h4, h5, h6 {
        color: #FFFFFF;
        margin-bottom: 15px;
        font-family: 'Montserrat', sans-serif;
    }

    h2 {
        font-size: 28px;
        border-bottom: 2px solid #6A1B9A;
        padding-bottom: 5px;
    }

    h3 {
        font-size: 22px;
        color: #4CAF50;
    }

    /* 段落样式 */
    p {
        margin-bottom: 15px;
        color: #C4C4C4;
    }

    /* 代码块样式 */
    pre {
        background: #1E1E1E;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        color: #00FF90;
        font-family: 'Fira Code', monospace;
        font-size: 14px;
    }

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

    table, th, td {
        border: 1px solid #444444;
    }

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

    th {
        background-color: #2C2C2C;
        color: #FFFFFF;
    }

    td {
        background-color: #1E1E1E;
        color: #C4C4C4;
    }

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

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

    .animated-background {
        background: linear-gradient(-45deg, #6A1B9A, #D9534F, #4CAF50, #C4C4C4);
        background-size: 400% 400%;
        animation: aurora-move 15s linear infinite;
    }

    /* 启动进程动画 */
    .startup-animation {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        z-index: 2000;
        display: none;
    }

    .startup-animation .shield {
        width: 100px;
        height: 100px;
        border: 5px solid #FFFFFF;
        border-radius: 50%;
        position: relative;
        animation: rotate-shield 3s linear infinite;
    }

    @keyframes rotate-shield {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }

    /* 滚动栏样式 */
    .scrolling-text {
        background: rgba(24, 30, 59, 0.8);
        padding: 10px;
        border-radius: 5px;
        overflow: hidden;
        position: fixed;
        right: 10px;
        top: 100px;
        width: 250px;
        height: 100px;
        color: #FFFFFF;
    }

    .scrolling-text p {
        animation: scroll-up 10s linear infinite;
    }

    @keyframes scroll-up {
        0% { transform: translateY(100%); }
        100% { transform: translateY(-100%); }
    }

    /* 固定导航栏 */
    .fixed-nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(24, 30, 59, 0.95);
        padding: 10px 0;
        z-index: 1000;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }

    .fixed-nav .logo {
        float: left;
        margin-left: 20px;
        font-size: 24px;
        color: #FFFFFF;
    }

    .fixed-nav .menu {
        float: right;
        margin-right: 20px;
    }

    .fixed-nav .menu a {
        color: #C4C4C4;
        text-decoration: none;
        margin-left: 20px;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    .fixed-nav .menu a:hover {
        color: #D9534F;
    }

    /* 底部导航栏 */
    footer {
        background: rgba(24, 30, 59, 0.9);
        color: #C4C4C4;
        text-align: center;
        padding: 20px 0;
        position: relative;
        bottom: 0;
        width: 100%;
    }

    footer a {
        color: #C4C4C4;
        text-decoration: none;
        margin: 0 10px;
        transition: color 0.3s ease;
    }

    footer a:hover {
        color: #4CAF50;
    }

    /* 响应式布局 */
    @media (max-width: 1440px) {
        .container {
            width: 95%;
        }
    }

    @media (max-width: 1200px) {
        nav {
            gap: 20px;
        }

        .fixed-nav .menu a {
            margin-left: 15px;
            font-size: 14px;
        }
    }

    @media (max-width: 1024px) {
        .scrolling-text {
            width: 200px;
            height: 80px;
        }

        header .logo {
            font-size: 20px;
        }
    }

    @media (max-width: 768px) {
        nav {
            flex-direction: column;
            align-items: center;
        }

        .fixed-nav .menu {
            float: none;
            margin: 10px 0 0 0;
        }

        .fixed-nav .menu a {
            margin: 10px 0;
            font-size: 16px;
        }

        .scrolling-text {
            width: 100%;
            right: 0;
            top: auto;
            bottom: 10px;
            height: 60px;
        }
    }

    @media (max-width: 480px) {
        .fixed-nav .logo {
            font-size: 18px;
        }

        nav a {
            font-size: 14px;
        }

        .button-primary, .button-success {
            font-size: 14px;
            padding: 8px 16px;
        }

        h2 {
            font-size: 24px;
        }

        h3 {
            font-size: 20px;
        }

        pre, code {
            font-size: 12px;
        }

        table, th, td {
            font-size: 12px;
        }
    }

    @media (max-width: 320px) {
        .fixed-nav .logo {
            font-size: 16px;
        }

        nav a {
            font-size: 12px;
        }

        .button-primary, .button-success {
            font-size: 12px;
            padding: 6px 12px;
        }

        h2 {
            font-size: 20px;
        }

        h3 {
            font-size: 18px;
        }

        pre, code {
            font-size: 10px;
        }

        table, th, td {
            font-size: 10px;
        }
    }

    /* 内边距调整 */
    .content-section {
        padding: 20px;
        background: rgba(24, 30, 59, 0.8);
        border-radius: 10px;
        margin-bottom: 40px;
    }

    /* 代码示例样式 */
    .code-example {
        background: #1E1E1E;
        border-left: 5px solid #4CAF50;
        padding: 10px;
        margin: 20px 0;
        overflow-x: auto;
    }

    /* 提示样式 */
    .design-reference {
        position: fixed;
        bottom: 10px;
        right: 10px;
        background: rgba(24, 30, 59, 0.7);
        color: #FFFFFF;
        padding: 10px 15px;
        border-radius: 5px;
        font-size: 14px;
    }

    /* 网络动画 */
    .network-visualization {
        width: 100%;
        height: 300px;
        background: #000000;
        border-radius: 10px;
        margin: 20px 0;
        background-image: url('https://images.gptkong.com/demo/sample10.png');
        background-size: cover;
        animation: data-flow 10s linear infinite;
    }

    @keyframes data-flow {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 个人化设置中心 */
    .settings-center {
        background: rgba(24, 30, 59, 0.85);
        padding: 20px;
        border-radius: 10px;
        margin: 20px 0;
    }

    .settings-center label {
        display: block;
        margin-bottom: 10px;
        color: #FFFFFF;
    }

    .settings-center input[type="range"] {
        width: 100%;
    }

    .settings-center select {
        width: 100%;
        padding: 8px;
        border-radius: 5px;
        border: none;
        margin-bottom: 15px;
        background: #2C2C2C;
        color: #FFFFFF;
    }

    /* 图表样式 */
    .chart {
        width: 100%;
        height: 200px;
        background: #1E1E1E;
        border-radius: 10px;
        margin: 20px 0;
        position: relative;
    }

    .chart::before {
        content: '';
        position: absolute;
        top: 10px;
        left: 10px;
        width: 5px;
        height: 180px;
        background: #4CAF50;
    }

    .chart::after {
        content: '';
        position: absolute;
        bottom: 10px;
        right: 10px;
        width: 5px;
        height: 180px;
        background: #D9534F;
    }

    /* 动态文本滚动 */
    .dynamic-news {
        background: rgba(24, 30, 59, 0.8);
        padding: 10px;
        border-radius: 5px;
        color: #FFFFFF;
        overflow: hidden;
        height: 50px;
        position: fixed;
        right: 20px;
        top: 150px;
    }

    .dynamic-news p {
        animation: news-scroll 15s linear infinite;
    }

    @keyframes news-scroll {
        0% { transform: translateY(100%); }
        100% { transform: translateY(-100%); }
    }

    /* 多媒体元素 */
    .media-section {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        justify-content: center;
    }

    .media-section img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        border-radius: 10px;
    }