/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f2027, #2c5364);
        color: #ffffff;
        line-height: 1.6;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px 0;
    }

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

    header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(31, 38, 135, 0.7);
        backdrop-filter: blur(5px);
    }

    header h1 {
        position: relative;
        font-size: 3rem;
        z-index: 1;
        animation: fadeInDown 2s ease-out;
    }

    /* 动画 */
    @keyframes fadeInDown {
        from {
            opacity: 0;
            transform: translateY(-50px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* 导航栏 */
    nav {
        background: rgba(0, 0, 0, 0.5);
        padding: 10px 0;
    }

    nav ul {
        list-style: none;
        display: flex;
        justify-content: center;
        margin: 0;
        padding: 0;
    }

    nav ul li {
        margin: 0 15px;
    }

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

    nav ul li a:hover {
        color: #FFD700;
    }

    /* 主内容 */
    main {
        padding: 40px 0;
    }

    /* 样例展示 */
    .sample-display {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        border-radius: 10px;
        padding: 30px;
        box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
        margin-bottom: 40px;
    }

    .sample-display h2 {
        font-size: 2rem;
        color: #FFD700;
        margin-bottom: 20px;
        text-align: center;
    }

    .sample-display h3 {
        font-size: 1.5rem;
        color: #C0C0C0;
        margin-top: 30px;
        margin-bottom: 10px;
    }

    .sample-display p {
        font-size: 1rem;
        color: #FFFFFF;
        margin-bottom: 20px;
    }

    /* 代码块样式 */
    pre {
        background: #1E2D47;
        padding: 15px;
        border-radius: 5px;
        overflow: auto;
        font-family: 'Courier New', Courier, monospace;
        color: #FFFFFF;
    }

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

    /* 图片样式 */
    .sample-display img {
        width: 100%;
        max-width: 320px;
        height: auto;
        border-radius: 10px;
        margin: 10px;
    }

    /* 按钮样式 */
    .button {
        background: #007BFF;
        color: #FFFFFF;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        transition: all 0.3s ease;
        font-size: 1rem;
    }

    .button:hover {
        background: #0056b3;
        transform: scale(1.1);
    }

    /* 页脚 */
    footer {
        background: rgba(0, 0, 0, 0.7);
        text-align: center;
        padding: 20px 0;
        color: #C0C0C0;
        font-size: 0.9rem;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5rem;
        }

        nav ul li a {
            font-size: 0.9rem;
        }

        .sample-display h2 {
            font-size: 1.8rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            width: 95%;
        }

        .sample-display img {
            max-width: 280px;
        }
    }

    @media (max-width: 1024px) {
        header h1 {
            font-size: 2rem;
        }

        nav ul {
            flex-direction: column;
        }

        nav ul li {
            margin: 10px 0;
        }

        .sample-display {
            padding: 20px;
        }
    }

    @media (max-width: 768px) {
        header {
            height: 40vh;
        }

        .sample-display h2 {
            font-size: 1.5rem;
        }

        .sample-display img {
            max-width: 240px;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }

        nav ul li a {
            font-size: 0.8rem;
        }

        .sample-display h3 {
            font-size: 1.2rem;
        }

        .sample-display p, pre, code {
            font-size: 0.9rem;
        }

        .button {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
    }

    @media (max-width: 320px) {
        .sample-display {
            padding: 15px;
        }

        .sample-display img {
            max-width: 200px;
        }
    }

    /* 动态粒子效果 */
    .particles {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        z-index: 0;
    }

    @keyframes aurora-move {
        0% {
            transform: translateY(0) translateX(0);
        }
        50% {
            transform: translateY(-50px) translateX(50px);
        }
        100% {
            transform: translateY(0) translateX(0);
        }
    }

    /* 链接样式 */
    a {
        color: #FFD700;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #FFFFFF;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    table, th, td {
        border: 1px solid #C0C0C0;
    }

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

    th {
        background: rgba(31, 38, 135, 0.5);
    }

    td {
        background: rgba(255, 255, 255, 0.1);
    }

    /* 列表样式 */
    ul {
        list-style: disc inside;
        padding-left: 20px;
        color: #FFFFFF;
    }

    li {
        margin-bottom: 10px;
    }

    /* 强调文本 */
    strong {
        color: #FFD700;
    }

    b {
        color: #FFD700;
    }

    i {
        color: #C0C0C0;
    }

    /* 模态弹窗样式 */
    .modal {
        display: none;
        position: fixed;
        z-index: 1000;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        overflow: auto;
        background: rgba(0, 0, 0, 0.7);
    }

    .modal-content {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        margin: 10% auto;
        padding: 20px;
        border-radius: 10px;
        width: 80%;
        max-width: 500px;
        box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    }

    .close {
        color: #FFFFFF;
        float: right;
        font-size: 1.5rem;
        font-weight: bold;
        cursor: pointer;
    }

    .close:hover,
    .close:focus {
        color: #FFD700;
        text-decoration: none;
        cursor: pointer;
    }

    /* 卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        margin-bottom: 20px;
    }

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

    .card h4 {
        margin-bottom: 10px;
        color: #FFD700;
    }

    .card p {
        color: #FFFFFF;
    }

    /* 表单样式（仅供参考，实际页面无输入框） */
    .form-group {
        margin-bottom: 15px;
    }

    .form-group label {
        display: block;
        color: #C0C0C0;
        margin-bottom: 5px;
    }

    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 10px;
        border: none;
        border-radius: 5px;
        background: rgba(255, 255, 255, 0.2);
        color: #FFFFFF;
    }

    /* 图标样式 */
    .icon {
        width: 50px;
        height: 50px;
        margin-right: 10px;
        fill: #FFD700;
    }

    /* 优化代码块避免横向滚动 */
    pre {
        white-space: pre-wrap;
        word-wrap: break-word;
    }