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

    body {
        font-family: 'Roboto', 'Inter', sans-serif;
        background: linear-gradient(135deg, #1C1C1E, #0A84FF);
        color: #ffffff;
        backdrop-filter: blur(10px);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 20px;
    }

    /* 导航栏样式 */
    nav {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(28, 28, 30, 0.8);
        backdrop-filter: blur(10px);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 50px;
        z-index: 1000;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }

    nav .logo {
        font-family: 'SF Pro Display', sans-serif;
        font-size: 24px;
        color: #9B51E0;
    }

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

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

    nav ul li a {
        text-decoration: none;
        color: #ffffff;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    nav ul li a:hover {
        color: #34C759;
        transform: scale(1.05);
    }

    /* 主内容区样式 */
    .container {
        width: 100%;
        max-width: 1200px;
        margin-top: 80px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .banner {
        width: 100%;
        height: 60vh;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
        background-size: cover;
        position: relative;
        display: flex;
        justify-content: center;
        align-items: center;
        color: #ffffff;
        text-align: center;
    }

    .banner::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(135deg, rgba(28,28,30,0.7), rgba(10,132,255,0.7));
        backdrop-filter: blur(5px);
    }

    .banner h1 {
        position: relative;
        font-family: 'SF Pro Display', sans-serif;
        font-size: 48px;
        color: #ffffff;
        z-index: 1;
        text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    }

    .section {
        width: 100%;
        padding: 50px 20px;
        background: rgba(28,28,30,0.6);
        margin: 20px 0;
        border-radius: 10px;
        backdrop-filter: blur(10px);
    }

    .section h2 {
        font-family: 'SF Pro Display', sans-serif;
        color: #9B51E0;
        margin-bottom: 20px;
        font-size: 32px;
    }

    .section p {
        font-size: 18px;
        line-height: 1.6;
        color: #ffffff;
    }

    /* 示例展示样式 */
    .sample-article {
        background: rgba(28,28,30,0.8);
        padding: 30px;
        border-radius: 10px;
        margin-top: 40px;
        overflow: hidden;
    }

    .sample-article h2,
    .sample-article h3,
    .sample-article h4 {
        font-family: 'SF Pro Display', sans-serif;
        color: #9B51E0;
        margin-bottom: 15px;
    }

    .sample-article p {
        font-size: 16px;
        line-height: 1.8;
        color: #ffffff;
        margin-bottom: 15px;
    }

    .sample-article pre {
        background: #1C1C1E;
        padding: 15px;
        border-radius: 5px;
        overflow: auto;
        margin-bottom: 15px;
    }

    .sample-article code {
        color: #34C759;
        font-family: 'Courier New', Courier, monospace;
    }

    .sample-article table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 15px;
    }

    .sample-article table, 
    .sample-article th, 
    .sample-article td {
        border: 1px solid #34C759;
    }

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

    /* 示例数据样式 */
    .example-data {
        background: rgba(28,28,30,0.8);
        padding: 30px;
        border-radius: 10px;
        margin-top: 40px;
        width: 100%;
    }

    .example-data ul {
        list-style: disc;
        padding-left: 20px;
    }

    .example-data li {
        margin-bottom: 10px;
        font-size: 16px;
        color: #ffffff;
    }

    /* 提示样式 */
    .reference-note {
        margin-top: 40px;
        font-size: 18px;
        color: #34C759;
        animation: fadeIn 2s ease-in-out;
    }

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

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .banner h1 {
            font-size: 42px;
        }

        nav {
            padding: 10px 30px;
        }

        .section {
            padding: 40px 15px;
        }
    }

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

        nav {
            padding: 10px 20px;
        }

        .section {
            padding: 35px 10px;
        }
    }

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

        nav ul li {
            margin-left: 15px;
        }

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

        .sample-article h2 {
            font-size: 28px;
        }

        .example-data li {
            font-size: 15px;
        }
    }

    @media (max-width: 768px) {
        .banner {
            height: 50vh;
            background: url('https://images.gptkong.com/demo/sample2.png') no-repeat center center;
        }

        .banner h1 {
            font-size: 28px;
        }

        nav {
            flex-direction: column;
            padding: 10px;
        }

        nav ul {
            flex-direction: column;
            align-items: center;
        }

        nav ul li {
            margin: 10px 0;
        }

        .section {
            padding: 30px 10px;
        }
    }

    @media (max-width: 480px) {
        .banner {
            height: 40vh;
            background: url('https://images.gptkong.com/demo/sample3.png') no-repeat center center;
        }

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

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

        .sample-article h2 {
            font-size: 24px;
        }

        .example-data li {
            font-size: 14px;
        }
    }

    @media (max-width: 320px) {
        .banner {
            height: 35vh;
            background: url('https://images.gptkong.com/demo/sample4.png') no-repeat center center;
        }

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

        nav {
            padding: 10px;
        }

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

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

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

        .sample-article h2 {
            font-size: 20px;
        }

        .example-data li {
            font-size: 13px;
        }
    }