/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000046, #292E49, #7B2CBF);
        background-size: 400% 400%;
        animation: gradientAnimation 15s ease infinite;
        color: #FFFFFF;
        line-height: 1.6;
    }

    @keyframes gradientAnimation {
        0% {background-position: 0% 50%;}
        50% {background-position: 100% 50%;}
        100% {background-position: 0% 50%;}
    }

    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        backdrop-filter: blur(10px);
        background-color: rgba(0, 0, 0, 0.6);
        z-index: 1000;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 15px 30px;
    }

    .navbar .logo {
        font-size: 1.5em;
        font-weight: bold;
        color: #7B2CBF;
    }

    .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;
    }

    .navbar ul li a:hover {
        color: #00FFD1;
    }

    .hero {
        min-height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
        padding-top: 80px;
        text-align: center;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('https://images.gptkong.com/demo/sample1.png') center center / cover no-repeat;
        opacity: 0.3;
        z-index: -1;
    }

    .hero-content {
        backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 40px;
        max-width: 800px;
    }

    .hero-content h1 {
        font-size: 2.5em;
        margin-bottom: 20px;
        color: #FFFFFF;
    }

    .hero-content p {
        font-size: 1.2em;
        margin-bottom: 30px;
        color: #E0E0E0;
    }

    .hero-content .btn {
        display: inline-block;
        padding: 10px 20px;
        background: linear-gradient(45deg, #00FFD1, #7B2CBF);
        border: none;
        border-radius: 25px;
        color: #FFFFFF;
        font-size: 1em;
        cursor: pointer;
        text-decoration: none;
        transition: background 0.3s, box-shadow 0.3s;
    }

    .hero-content .btn:hover {
        box-shadow: 0 0 15px rgba(0, 255, 209, 0.7);
    }

    .container {
        padding: 60px 30px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .section {
        margin-bottom: 60px;
    }

    .section h2 {
        font-size: 2em;
        margin-bottom: 20px;
        color: #FFFFFF;
        text-align: center;
    }

    .frosted-glass {
        backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 30px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .cards {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .card {
        width: calc(33.333% - 20px);
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        margin-bottom: 30px;
        transition: transform 0.3s, box-shadow 0.3s;
        position: relative;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 0 20px rgba(0, 255, 209, 0.7);
    }

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

    .card h3 {
        font-size: 1.5em;
        margin-bottom: 10px;
        color: #FFFFFF;
    }

    .card p {
        font-size: 1em;
        color: #E0E0E0;
    }

    .code-block {
        background-color: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
    }

    .code-block code {
        color: #00FFD1;
        font-family: 'Courier New', Courier, monospace;
        display: block;
        white-space: pre-wrap;
    }

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

    table, th, td {
        border: 1px solid #7B2CBF;
    }

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

    th {
        background-color: rgba(255, 255, 255, 0.2);
    }

    ul, ol {
        margin-top: 15px;
        margin-left: 20px;
    }

    .footer {
        background-color: rgba(0, 0, 0, 0.8);
        padding: 30px;
        text-align: center;
        color: #FFFFFF;
    }

    .footer p {
        margin-bottom: 10px;
    }

    /* 动画效果 */
    .background-particles {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: -2;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .card {
            width: calc(33.333% - 20px);
        }
    }

    @media (max-width: 1200px) {
        .card {
            width: calc(50% - 20px);
        }
    }

    @media (max-width: 1024px) {
        .navbar ul li {
            margin-left: 15px;
        }

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

        .hero-content p {
            font-size: 1.1em;
        }
    }

    @media (max-width: 768px) {
        .card {
            width: 100%;
        }

        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

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

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

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

        .hero-content h1 {
            font-size: 1.5em;
        }

        .carousel {
            flex-direction: column;
        }

        .card {
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        .hero-content h1 {
            font-size: 1.2em;
        }

        .hero-content p {
            font-size: 1em;
        }
    }