/* 基础样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #f5f5f5, #ffffff);
        color: #0047AB;
        line-height: 1.6;
        padding: 20px;
    }

    a {
        color: #FFA500;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #FF8C00;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 71, 171, 0.9);
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .navbar .logo {
        color: #ffffff;
        font-size: 24px;
        font-weight: bold;
    }

    .navbar ul {
        list-style: none;
        display: flex;
    }

    .navbar ul li {
        margin-left: 20px;
    }

    .navbar ul li a {
        color: #ffffff;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #FFA500;
    }

    /* 主视觉 */
    .hero {
        margin-top: 80px;
        background: radial-gradient(circle, rgba(0,71,171,1) 0%, rgba(255,165,0,1) 100%);
        color: #ffffff;
        padding: 100px 20px;
        text-align: center;
        background-image: url('https://images.gptkong.com/demo/sample1.png');
        background-size: cover;
        background-position: center;
        position: relative;
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,71,171,0.6);
    }

    .hero-content {
        position: relative;
        z-index: 1;
    }

    .hero h1 {
        font-size: 48px;
        margin-bottom: 20px;
        animation: fadeIn 2s ease-in-out;
    }

    .hero p {
        font-size: 20px;
        margin-bottom: 30px;
        animation: fadeIn 2s ease-in-out 0.5s;
    }

    .hero .cta-button {
        background-color: #FFA500;
        color: #ffffff;
        padding: 15px 30px;
        border: none;
        border-radius: 5px;
        font-size: 18px;
        cursor: pointer;
        transition: transform 0.3s ease, background-color 0.3s ease;
    }

    .hero .cta-button:hover {
        transform: scale(1.05);
        background-color: #FF8C00;
    }

    /* 动画效果 */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 模块化设计 */
    .section {
        padding: 60px 20px;
        background: linear-gradient(135deg, #ffffff, #f5f5f5);
    }

    .section:nth-child(even) {
        background: linear-gradient(135deg, #f5f5f5, #ffffff);
    }

    .section h2 {
        text-align: center;
        margin-bottom: 40px;
        color: #0047AB;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .card {
        background-color: white;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        padding: 20px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 15px rgba(0,0,0,0.2);
    }

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

    .card h3 {
        margin-bottom: 10px;
        color: #FFA500;
    }

    .card p {
        color: #333333;
        font-size: 16px;
    }

    /* 示例展示 */
    .example {
        padding: 60px 20px;
        background: #ffffff;
    }

    .example h2 {
        text-align: center;
        margin-bottom: 40px;
        color: #0047AB;
    }

    .example article {
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
        border: 1px solid #dddddd;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        background-color: #fafafa;
    }

    .example article h2 {
        color: #0047AB;
        margin-bottom: 20px;
    }

    .example article h3 {
        color: #FFA500;
        margin-top: 20px;
        margin-bottom: 10px;
    }

    .example article p {
        margin-bottom: 15px;
        color: #333333;
    }

    .example article pre {
        background: #f0f0f0;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }

    .example article code {
        font-family: 'Courier New', Courier, monospace;
        color: #E91E63;
    }

    .example table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    .example table, .example th, .example td {
        border: 1px solid #dddddd;
    }

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

    .example th {
        background-color: #FFA500;
        color: #ffffff;
    }

    /* 图片画廊 */
    .gallery {
        padding: 60px 20px;
        background: linear-gradient(135deg, #f5f5f5, #ffffff);
    }

    .gallery h2 {
        text-align: center;
        margin-bottom: 40px;
        color: #0047AB;
    }

    .gallery .images {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .gallery .images img {
        width: 150px;
        height: 150px;
        object-fit: cover;
        border-radius: 10px;
        transition: transform 0.3s ease;
    }

    .gallery .images img:hover {
        transform: scale(1.1);
    }

    /* 底部 */
    .footer {
        background: #0047AB;
        color: #ffffff;
        text-align: center;
        padding: 20px;
        margin-top: 40px;
    }

    .footer p {
        margin: 0;
        font-size: 16px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .hero h1 {
            font-size: 40px;
        }

        .hero p {
            font-size: 18px;
        }

        .hero .cta-button {
            font-size: 16px;
            padding: 12px 25px;
        }
    }

    @media (max-width: 1200px) {
        .navbar .logo {
            font-size: 20px;
        }

        .navbar ul li a {
            font-size: 14px;
        }

        .example article {
            padding: 15px;
        }
    }

    @media (max-width: 1024px) {
        .container {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

    @media (max-width: 768px) {
        .navbar ul {
            display: none;
        }

        .hero {
            padding: 80px 10px;
        }

        .hero h1 {
            font-size: 32px;
        }

        .hero p {
            font-size: 16px;
        }

        .gallery .images img {
            width: 100px;
            height: 100px;
        }
    }

    @media (max-width: 480px) {
        .hero {
            padding: 60px 5px;
        }

        .hero h1 {
            font-size: 24px;
        }

        .hero p {
            font-size: 14px;
        }

        .hero .cta-button {
            font-size: 14px;
            padding: 10px 20px;
        }

        .container {
            grid-template-columns: 1fr;
        }

        .gallery .images img {
            width: 80px;
            height: 80px;
        }
    }

    @media (max-width: 320px) {
        .hero {
            padding: 50px 5px;
        }

        .hero h1 {
            font-size: 20px;
        }

        .hero p {
            font-size: 12px;
        }

        .hero .cta-button {
            font-size: 12px;
            padding: 8px 16px;
        }

        .navbar {
            padding: 10px 15px;
        }

        .navbar .logo {
            font-size: 18px;
        }
    }