/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1C3F95, #6A82FB);
        color: #fff;
        line-height: 1.6;
    }

    a {
        color: #FFD700;
        text-decoration: none;
        rel: nofollow;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 头部样式 */
    header {
        background: rgba(10, 36, 99, 0.8);
        padding: 20px;
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 20px 20px 20px;
    }

    .logo {
        font-family: 'Pacifico', cursive;
        font-size: 24px;
        color: #FFD700;
    }

    nav {
        margin-top: 10px;
    }

    nav ul {
        list-style: none;
        display: flex;
        flex-wrap: wrap;
    }

    nav ul li {
        margin-right: 20px;
    }

    /* 主页横幅 */
    .hero {
        height: 100vh;
        background: radial-gradient(circle, rgba(255,87,34,0.5), transparent);
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
        animation: aurora-move 15s linear infinite;
    }

    .hero::before {
        content: '';
        background: url('https://images.gptkong.com/demo/sample1.png') center center/cover no-repeat;
        opacity: 0.3;
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
    }

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

    .hero h1 {
        font-family: 'Pacifico', cursive;
        font-size: 48px;
        margin-bottom: 20px;
        color: #FFD700;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    .hero p {
        font-size: 18px;
        max-width: 600px;
        margin: 0 auto 30px;
    }

    .btn {
        background-color: #FFD700;
        color: #0A2463;
        padding: 10px 30px;
        border: none;
        border-radius: 5px;
        font-size: 16px;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .btn:hover {
        box-shadow: 0 0 10px rgba(255,215,0,0.7);
        transform: scale(1.05);
    }

    /* 模块化卡片 */
    .cards {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 40px;
    }

    .card {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 15px;
        padding: 20px;
        flex: 1 1 calc(25% - 40px);
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        backdrop-filter: blur(10px);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    }

    .card img {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }

    .card h3 {
        font-family: 'Pacifico', cursive;
        font-size: 20px;
        margin-bottom: 10px;
        color: #FFD700;
    }

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

    /* 示例展示 */
    .example {
        background: rgba(10, 36, 99, 0.8);
        border-radius: 15px;
        padding: 30px;
        margin-top: 60px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    }

    .example h2 {
        font-family: 'Pacifico', cursive;
        font-size: 28px;
        margin-bottom: 20px;
        color: #FFD700;
    }

    .example article {
        font-size: 16px;
        line-height: 1.8;
    }

    .example pre {
        background: #1C3F95;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .example code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
        display: block;
    }

    /* 提示信息 */
    .reference-note {
        background: rgba(255, 215, 0, 0.3);
        border-left: 5px solid #FFD700;
        padding: 15px;
        margin: 30px 0;
        border-radius: 5px;
        font-size: 16px;
    }

    /* 图片展示 */
    .images-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 30px;
    }

    .images-grid img {
        width: 160px;
        height: 160px;
        border-radius: 10px;
        object-fit: cover;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .card {
            flex: 1 1 calc(33.333% - 40px);
        }
    }

    @media (max-width: 1200px) {
        .card {
            flex: 1 1 calc(50% - 40px);
        }
    }

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

        .card {
            flex: 1 1 100%;
        }

        .hero h1 {
            font-size: 36px;
        }

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

        .btn {
            padding: 8px 20px;
            font-size: 14px;
        }

        .images-grid img {
            width: 100px;
            height: 100px;
        }
    }

    @media (max-width: 480px) {
        .hero h1 {
            font-size: 28px;
        }

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

        .btn {
            padding: 6px 16px;
            font-size: 12px;
        }

        .card {
            padding: 15px;
        }

        .example h2 {
            font-size: 24px;
        }
    }

    @media (max-width: 320px) {
        .hero h1 {
            font-size: 24px;
        }

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

        .btn {
            padding: 5px 12px;
            font-size: 10px;
        }

        .card h3 {
            font-size: 18px;
        }

        .example h2 {
            font-size: 20px;
        }
    }

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

    @media (prefers-reduced-motion: reduce) {
        .hero {
            animation: none;
        }

        .button, .btn {
            transition: none;
        }
    }