/* 基础样式设置 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #00008B, #8A2BE2);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 全屏沉浸式布局 */
    .fullscreen {
        width: 100%;
        height: 100vh;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, transparent 70%);
        animation: aurora-move 15s linear infinite;
    }

    /* 动态粒子背景 */
    .particles {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('https://images.gptkong.com/demo/sample1.png') repeat;
        opacity: 0.3;
        animation: particle-animation 20s linear infinite;
    }

    /* 半透明蒙版 */
    .overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
    }

    /* 文字介绍 */
    .intro-text {
        position: relative;
        z-index: 1;
        text-align: center;
        padding: 20px;
    }

    .intro-text h1 {
        font-size: 3em;
        margin-bottom: 20px;
        animation: fadeInText 2s ease-in-out;
        font-family: 'Orbitron', sans-serif;
    }

    .intro-text p {
        font-size: 1.2em;
        line-height: 1.5;
    }

    /* 信息流卡片布局 */
    .info-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 40px 20px;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
    }

    .card img {
        width: 100%;
        border-radius: 5px;
        margin-bottom: 15px;
    }

    .card h3 {
        margin: 10px 0;
        font-size: 1.5em;
        font-family: 'Orbitron', sans-serif;
    }

    .card p {
        font-size: 1em;
        line-height: 1.6;
    }

    /* 按钮样式 */
    .ripple-button {
        position: relative;
        display: inline-block;
        padding: 10px 20px;
        background-color: #FF5722;
        color: #fff;
        border: none;
        border-radius: 50px;
        cursor: pointer;
        overflow: hidden;
        transition: background-color 0.3s ease;
    }

    .ripple-button:hover {
        background-color: #E64A19;
    }

    .ripple-button::before {
        content: '';
        position: absolute;
        width: 100px;
        height: 100px;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: scale(0);
        opacity: 0;
        pointer-events: none;
    }

    .ripple-button:active::before {
        transform: scale(2);
        opacity: 1;
        transition: transform 0.6s ease-out, opacity 0.6s ease-out;
    }

    /* 示例展示区 */
    .example-section {
        padding: 40px 20px;
        background: linear-gradient(135deg, #2a5298, #1e3c72);
    }

    .example-section h2 {
        text-align: center;
        font-size: 2.5em;
        margin-bottom: 20px;
        font-family: 'Orbitron', sans-serif;
    }

    .example-article {
        max-width: 800px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .example-article h2, .example-article h3, .example-article h4 {
        font-family: 'Orbitron', sans-serif;
        color: #FFD700;
    }

    .example-article pre {
        background: #1e3c72;
        padding: 15px;
        border-radius: 5px;
        overflow: auto;
    }

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

    /* 提示信息 */
    .hint {
        text-align: center;
        font-size: 1em;
        margin: 20px 0;
        color: #FFD700;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .intro-text h1 {
            font-size: 2.5em;
        }

        .card h3 {
            font-size: 1.3em;
        }
    }

    @media (max-width: 1200px) {
        .info-grid {
            padding: 30px 10px;
        }

        .ripple-button {
            padding: 8px 16px;
        }
    }

    @media (max-width: 1024px) {
        .intro-text h1 {
            font-size: 2em;
        }

        .card {
            padding: 15px;
        }
    }

    @media (max-width: 768px) {
        .info-grid {
            grid-template-columns: 1fr;
            padding: 20px 5px;
        }

        .intro-text h1 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 480px) {
        .intro-text h1 {
            font-size: 1.5em;
        }

        .card h3 {
            font-size: 1.2em;
        }
    }

    @media (max-width: 320px) {
        .intro-text h1 {
            font-size: 1.2em;
        }

        .card h3 {
            font-size: 1em;
        }
    }

    /* 动画关键帧 */
    @keyframes aurora-move {
        0% {
            background-position: 0% 50%;
        }
        50% {
            background-position: 100% 50%;
        }
        100% {
            background-position: 0% 50%;
        }
    }

    @keyframes particle-animation {
        from { background-position: 0 0; }
        to { background-position: 1000px 1000px; }
    }

    @keyframes fadeInText {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 20px 0;
    }

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

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

    th {
        background: #2a5298;
    }

    /* 列表样式 */
    ul, ol {
        margin: 10px 0;
        padding-left: 20px;
    }

    li {
        margin-bottom: 10px;
    }

    /* 图片样式 */
    img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        border-radius: 5px;
        margin: 10px;
    }

    /* 链接样式 */
    a {
        color: #FFD700;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }