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

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0d1b2a, #1b263b, #302b63, #24243e);
        color: #ffffff;
        overflow-x: hidden;
    }

    a {
        color: #39FF14;
        text-decoration: none;
        rel: nofollow;
    }

    /* 导航栏 */
    nav {
        position: fixed;
        top: 0;
        width: 100%;
        height: 60px;
        background: rgba(0, 0, 0, 0.7);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 20px;
        z-index: 1000;
    }

    .logo {
        font-family: 'Neon Glow', sans-serif;
        font-size: 24px;
        color: #39FF14;
        text-shadow: 0 0 10px #39FF14, 0 0 20px #39FF14;
    }

    .menu-toggle {
        width: 30px;
        height: 30px;
        cursor: pointer;
        position: relative;
    }

    .menu-toggle span {
        display: block;
        width: 100%;
        height: 4px;
        background: #ffffff;
        margin: 5px 0;
        transition: all 0.3s ease;
    }

    .menu-circle {
        position: fixed;
        top: 60px;
        right: 20px;
        width: 200px;
        height: 200px;
        border-radius: 50%;
        background: rgba(0, 0, 0, 0.8);
        display: flex;
        justify-content: center;
        align-items: center;
        transform: scale(0);
        transition: transform 0.5s ease;
        z-index: 999;
    }

    .menu-circle.open {
        transform: scale(1);
    }

    .menu-item {
        position: absolute;
        width: 50px;
        height: 50px;
        background: #39FF14;
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        cursor: pointer;
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .menu-item:hover {
        transform: scale(1.2);
        background: #ff5722;
    }

    /* 核心视觉 */
    .hero {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-direction: column;
        text-align: center;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover;
    }

    .hero h1 {
        font-size: 48px;
        margin-bottom: 20px;
        color: #39FF14;
        text-shadow: 0 0 10px #39FF14, 0 0 20px #39FF14;
    }

    .hero p {
        font-size: 18px;
        max-width: 600px;
        line-height: 1.6;
    }

    /* 内容区 */
    .content {
        padding: 60px 20px;
        background: linear-gradient(135deg, #1b263b, #302b63, #24243e);
    }

    .section {
        max-width: 1200px;
        margin: 0 auto;
        margin-bottom: 60px;
    }

    .section h2 {
        font-size: 36px;
        margin-bottom: 20px;
        color: #ff5722;
        text-shadow: 0 0 10px #ff5722;
    }

    .section p {
        font-size: 18px;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .section img {
        width: 100%;
        max-width: 320px;
        margin: 10px;
        border-radius: 10px;
    }

    /* 示例展示 */
    .sample-article {
        background: rgba(255, 255, 255, 0.1);
        padding: 40px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    }

    .sample-article h2 {
        font-size: 28px;
        margin-bottom: 20px;
        color: #39FF14;
    }

    .sample-article pre {
        background: #1b263b;
        padding: 20px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .sample-article code {
        color: #39FF14;
        font-family: 'Courier New', Courier, monospace;
    }

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

    table, th, td {
        border: 1px solid #39FF14;
    }

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

    th {
        background: #39FF14;
        color: #000;
    }

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

        .section h2 {
            font-size: 32px;
        }
    }

    @media (max-width: 1200px) {
        .hero h1 {
            font-size: 36px;
        }

        .section h2 {
            font-size: 28px;
        }
    }

    @media (max-width: 1024px) {
        .hero h1 {
            font-size: 32px;
        }

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

    @media (max-width: 768px) {
        .hero h1 {
            font-size: 28px;
        }

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

    @media (max-width: 480px) {
        nav {
            height: 50px;
            padding: 0 10px;
        }

        .logo {
            font-size: 20px;
        }

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

        .section h2 {
            font-size: 18px;
        }
    }

    @media (max-width: 320px) {
        .hero h1 {
            font-size: 20px;
        }

        .section h2 {
            font-size: 16px;
        }
    }

    /* 提示信息 */
    .reference-note {
        position: fixed;
        bottom: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.7);
        padding: 10px 20px;
        border-radius: 20px;
        font-size: 14px;
        color: #ffffff;
        z-index: 1000;
    }

    /* 过渡动画 */
    .fade-in {
        animation: fadeIn 2s ease-in-out;
    }

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