/* 全局样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0A1F3D, #F5F7FA);
        color: #FFFFFF;
        line-height: 1.6;
    }

    a {
        color: #8B5CF6;
        text-decoration: none;
        rel: nofollow;
    }

    a:hover {
        color: #10B981;
        transition: color 0.3s ease;
    }

    header {
        width: 100%;
        padding: 20px 0;
        background: rgba(10, 31, 61, 0.8);
        backdrop-filter: blur(10px);
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1000;
    }

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

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

    nav ul li {
        margin: 0 15px;
    }

    nav ul li a {
        font-size: 18px;
        position: relative;
        padding: 5px 0;
    }

    nav ul li a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 2px;
        background: #10B981;
        left: 0;
        bottom: 0;
        transition: width 0.3s;
    }

    nav ul li a:hover::after {
        width: 100%;
    }

    .hero {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 100vh;
        background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
        position: relative;
        z-index: 1;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        backdrop-filter: blur(5px);
        background: rgba(10, 31, 61, 0.5);
        z-index: -1;
    }

    .hero h1 {
        font-size: 48px;
        margin-bottom: 20px;
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    }

    .hero p {
        font-size: 20px;
        max-width: 600px;
        text-align: center;
        margin-bottom: 30px;
    }

    .hero .btn {
        padding: 10px 20px;
        background: #8B5CF6;
        border: none;
        border-radius: 25px;
        color: #FFFFFF;
        font-size: 18px;
        cursor: pointer;
        transition: background 0.3s;
    }

    .hero .btn:hover {
        background: #10B981;
    }

    section {
        padding: 60px 20px;
        background: rgba(245, 247, 250, 0.8);
        color: #0A1F3D;
        position: relative;
    }

    .section-title {
        text-align: center;
        font-size: 36px;
        margin-bottom: 40px;
        color: #0A1F3D;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.2);
        padding: 20px;
        border-radius: 15px;
        backdrop-filter: blur(10px);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }

    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    .card h3 {
        margin-bottom: 10px;
        font-size: 24px;
    }

    .card p {
        font-size: 16px;
    }

    .article-section {
        padding: 60px 20px;
        background: linear-gradient(135deg, #0A1F3D, #F5F7FA);
        color: #333;
    }

    .article {
        max-width: 800px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.9);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    }

    .article h2 {
        font-size: 30px;
        margin-bottom: 20px;
        color: #0A1F3D;
    }

    .article h3 {
        font-size: 24px;
        margin-top: 20px;
        color: #8B5CF6;
    }

    .article p {
        margin: 15px 0;
        font-size: 16px;
    }

    .article pre {
        background: #f0f0f0;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .article code {
        font-family: 'Courier New', Courier, monospace;
        background: #eaeaea;
        padding: 2px 4px;
        border-radius: 3px;
    }

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

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

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

    th {
        background: #8B5CF6;
        color: #fff;
    }

    @keyframes ripple {
        0% {
            width: 0;
            height: 0;
            opacity: 1;
        }
        100% {
            width: 200px;
            height: 200px;
            opacity: 0;
        }
    }

    .hover-effect {
        position: relative;
        overflow: hidden;
    }

    .hover-effect::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        animation: ripple 0.6s ease-out;
    }

    .footer {
        background: rgba(245, 247, 250, 0.8);
        padding: 20px;
        text-align: center;
        color: #0A1F3D;
    }

    @media (max-width: 768px) {
        .hero h1 {
            font-size: 32px;
        }

        .hero p {
            font-size: 16px;
        }

        nav ul {
            flex-direction: column;
        }

        nav ul li {
            margin: 10px 0;
        }
    }

    @media (max-width: 480px) {
        .hero h1 {
            font-size: 24px;
        }

        .hero p {
            font-size: 14px;
        }

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

        .card h3 {
            font-size: 20px;
        }

        .card p {
            font-size: 14px;
        }
    }

    @media (min-width: 1440px) {
        .hero h1 {
            font-size: 60px;
        }

        .section-title {
            font-size: 40px;
        }

        .card h3 {
            font-size: 28px;
        }
    }