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

    body {
        font-family: 'Inter', 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        line-height: 1.6;
        overflow-x: hidden;
    }

    a {
        color: #00ffcc;
        text-decoration: none;
        rel: nofollow;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 顶部导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        padding: 20px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
    }

    .navbar .logo {
        font-family: 'Poppins', sans-serif;
        font-size: 1.5rem;
        font-weight: bold;
        color: #ffffff;
    }

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

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

    .navbar ul li a {
        font-size: 1rem;
        transition: color 0.3s ease;
    }

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

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

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(5px);
    }

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

    .hero h1 {
        font-family: 'Poppins', sans-serif;
        font-size: 3rem;
        color: #ffffff;
        margin-bottom: 20px;
        text-transform: uppercase;
    }

    .hero p {
        font-size: 1.2rem;
        color: #dddddd;
        max-width: 600px;
        margin: 0 auto 30px;
    }

    .hero .btn {
        background: #00ffcc;
        color: #000000;
        padding: 10px 30px;
        border-radius: 25px;
        font-size: 1rem;
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .hero .btn:hover {
        transform: scale(1.05);
        background: #00e6b3;
    }

    /* 内容区 */
    .container {
        padding: 100px 20px 50px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .section {
        margin-bottom: 80px;
    }

    .section h2 {
        font-family: 'Poppins', sans-serif;
        font-size: 2.5rem;
        color: #ffffff;
        margin-bottom: 20px;
        text-align: center;
    }

    .section p {
        font-size: 1rem;
        color: #cccccc;
        margin-bottom: 20px;
        text-align: justify;
    }

    /* 网格布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    .grid-item {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        padding: 20px;
        border-radius: 10px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .grid-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .grid-item img {
        width: 100%;
        border-radius: 8px;
        margin-bottom: 15px;
    }

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

    .grid-item p {
        font-size: 0.9rem;
        color: #dddddd;
    }

    /* 示范数据展示 */
    .sample-article {
        background: rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(8px);
        padding: 30px;
        border-radius: 10px;
    }

    .sample-article h2 {
        font-size: 2rem;
        margin-bottom: 15px;
        color: #ff66b2;
    }

    .sample-article pre {
        background: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

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

    /* 提示信息 */
    .reference-note {
        text-align: center;
        font-size: 1rem;
        color: #ffcc00;
        margin-top: 50px;
    }

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

        .section h2 {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 80px 15px 40px;
        }
    }

    @media (max-width: 1024px) {
        .navbar {
            padding: 15px 30px;
        }

        .hero h1 {
            font-size: 2rem;
        }

        .hero p {
            font-size: 1rem;
        }

        .hero .btn {
            padding: 8px 25px;
            font-size: 0.9rem;
        }
    }

    @media (max-width: 768px) {
        .navbar ul {
            display: none;
        }

        .hero h1 {
            font-size: 1.8rem;
        }

        .section h2 {
            font-size: 2rem;
        }
    }

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

        .hero p {
            font-size: 0.9rem;
        }

        .section h2 {
            font-size: 1.8rem;
        }

        .grid-container {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 320px) {
        .hero h1 {
            font-size: 1.3rem;
        }

        .hero p {
            font-size: 0.8rem;
        }

        .section h2 {
            font-size: 1.6rem;
        }
    }

    /* 动画效果 */
    .particle-background {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('https://images.gptkong.com/demo/sample2.png') repeat;
        animation: moveBackground 60s linear infinite;
        z-index: -1;
    }

    @keyframes moveBackground {
        from { background-position: 0 0; }
        to { background-position: 10000px 5000px; }
    }