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

    body {
        font-family: 'Roboto Mono', monospace;
        background: linear-gradient(135deg, #000428, #004e92);
        color: #ffffff;
        line-height: 1.6;
        overflow-x: hidden;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.7);
        padding: 20px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        transition: background 0.3s ease;
    }

    .navbar:hover {
        background: rgba(0, 0, 0, 0.9);
    }

    .navbar .logo {
        font-size: 1.5em;
        font-weight: bold;
        background: linear-gradient(45deg, #8e2de2, #4a00e0);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

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

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

    .navbar ul li a {
        text-decoration: none;
        color: #ffffff;
        font-size: 1em;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #00ffcc;
    }

    /* 头图 */
    .hero {
        height: 100vh;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
    }

    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
    }

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

    .hero-content h1 {
        font-size: 3em;
        background: linear-gradient(45deg, #ff6a00, #ee0979);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        margin-bottom: 20px;
        animation: fadeInDown 1s ease;
    }

    .hero-content p {
        font-size: 1.2em;
        margin-bottom: 30px;
        animation: fadeInUp 1s ease;
    }

    .hero-content a {
        padding: 10px 20px;
        background: #4a00e0;
        color: #ffffff;
        text-decoration: none;
        border-radius: 5px;
        transition: background 0.3s ease;
    }

    .hero-content a:hover {
        background: #8e2de2;
    }

    /* 主要内容 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 100px 20px 50px;
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 10px;
        backdrop-filter: blur(10px);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        transition: transform 0.3s ease, opacity 0.3s ease;
        opacity: 0;
        transform: translateY(20px);
    }

    .section.active {
        opacity: 1;
        transform: translateY(0);
    }

    .section h2 {
        font-family: 'Futura', sans-serif;
        font-size: 2em;
        background: linear-gradient(90deg, #8e2de2, #4a00e0);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        margin-bottom: 15px;
    }

    .section p {
        font-size: 1em;
        margin-bottom: 15px;
    }

    .features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .feature-item {
        background: rgba(0, 78, 146, 0.8);
        padding: 20px;
        border-radius: 10px;
        text-align: center;
        transition: transform 0.3s ease;
    }

    .feature-item:hover {
        transform: scale(1.05);
    }

    .feature-item img {
        width: 100px;
        height: 100px;
        object-fit: cover;
        margin-bottom: 15px;
    }

    .feature-item h3 {
        font-size: 1.5em;
        margin-bottom: 10px;
        color: #00ffcc;
    }

    .feature-item p {
        font-size: 0.9em;
    }

    /* 示例展示 */
    .sample-article {
        background: rgba(34, 34, 34, 0.9);
        padding: 30px;
        border-radius: 10px;
        color: #ffffff;
    }

    .sample-article h2 {
        font-size: 1.8em;
        margin-bottom: 20px;
        text-align: center;
        color: #ff6a00;
    }

    .sample-article pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .sample-article code {
        color: #00ffcc;
        font-family: 'Roboto Mono', monospace;
    }

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

    .sample-article table, .sample-article th, .sample-article td {
        border: 1px solid #4a00e0;
    }

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

    .sample-article th {
        background: #8e2de2;
        color: #ffffff;
    }

    /* 提示信息 */
    .hint {
        text-align: center;
        font-size: 1em;
        margin-top: 50px;
        color: #ffffff;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

        .navbar ul {
            flex-direction: column;
            width: 100%;
        }

        .navbar ul li {
            margin: 10px 0;
        }

        .hero-content h1 {
            font-size: 2.5em;
        }

        .container {
            padding: 80px 10px 30px;
        }
    }

    @media (max-width: 480px) {
        .navbar {
            padding: 15px 20px;
        }

        .navbar .logo {
            font-size: 1.2em;
        }

        .hero-content h1 {
            font-size: 2em;
        }

        .feature-item img {
            width: 80px;
            height: 80px;
        }
    }

    /* 动画效果 */
    @keyframes fadeInDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Footer 样式 */
    footer {
        background: rgba(0, 0, 0, 0.8);
        color: #ffffff;
        text-align: center;
        padding: 20px;
        position: relative;
    }

    footer p {
        font-size: 1em;
    }

    /* 图片样式 */
    .gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .gallery img {
        width: calc(25% - 10px);
        height: auto;
        border-radius: 5px;
        transition: transform 0.3s ease;
    }

    .gallery img:hover {
        transform: scale(1.05);
    }

    @media (max-width: 768px) {
        .gallery img {
            width: calc(50% - 10px);
        }
    }

    @media (max-width: 480px) {
        .gallery img {
            width: 100%;
        }
    }