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

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    a {
        color: #00ffcc;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #ffcc00;
    }

    header {
        text-align: center;
        padding: 50px 0;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(0,0,0,1) 100%);
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 3em;
        margin-bottom: 20px;
        font-weight: bold;
        color: #ffffff;
    }

    nav {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-top: 20px;
    }

    nav a {
        font-size: 1.2em;
        position: relative;
    }

    nav a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: #00ffcc;
        transition: width 0.3s;
        position: absolute;
        bottom: -5px;
        left: 0;
    }

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

    section {
        padding: 60px 20px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .module {
        margin-bottom: 60px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 40px;
    }

    .module:nth-child(even) {
        flex-direction: row-reverse;
    }

    .module img {
        width: 100%;
        max-width: 500px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .module .content {
        flex: 1;
    }

    .module h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
        color: #ffcc00;
    }

    .module p {
        font-size: 1.1em;
        margin-bottom: 20px;
        color: #e0e0e0;
    }

    .module pre {
        background: #2a2a2a;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        color: #00ffcc;
        font-family: 'Courier New', Courier, monospace;
    }

    .animate-element {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.5s ease-in-out;
    }

    .animate-element.active {
        opacity: 1;
        transform: translateY(0);
    }

    button {
        background-color: #00ffcc;
        color: #000000;
        padding: 15px 30px;
        border: none;
        border-radius: 5px;
        font-size: 1em;
        cursor: pointer;
        transition: transform 0.3s ease, background-color 0.3s ease;
    }

    button:hover {
        transform: scale(1.1);
        background-color: #ffcc00;
    }

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

    table th, table td {
        border: 1px solid #ffffff;
        padding: 10px;
        text-align: left;
    }

    table th {
        background-color: #1e3c72;
        color: #ffcc00;
    }

    footer {
        text-align: center;
        padding: 30px 0;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(0,0,0,1) 100%);
        animation: aurora-move 15s linear infinite;
    }

    footer p {
        color: #ffffff;
        font-size: 1em;
    }

    /* 视差滚动效果 */
    .parallax {
        background-image: url('https://images.gptkong.com/demo/sample1.png');
        height: 400px;
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
        position: relative;
    }

    .parallax::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(30, 60, 114, 0.5);
    }

    /* 动画关键帧 */
    @keyframes aurora-move {
        0% {
            background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        }
        50% {
            background: radial-gradient(circle, rgb(34, 87, 255), transparent);
        }
        100% {
            background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .module h2 {
            font-size: 2.2em;
        }
    }

    @media (max-width: 1200px) {
        nav a {
            font-size: 1em;
        }

        .module h2 {
            font-size: 2em;
        }
    }

    @media (max-width: 1024px) {
        header {
            padding: 40px 0;
        }

        section {
            padding: 40px 10px;
        }

        .module {
            flex-direction: column;
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2.5em;
        }

        nav {
            flex-direction: column;
            gap: 15px;
        }

        .module img {
            max-width: 100%;
        }

        .module h2 {
            font-size: 1.8em;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 2em;
        }

        nav a {
            font-size: 0.9em;
        }

        .module h2 {
            font-size: 1.5em;
        }

        .module p {
            font-size: 1em;
        }

        button {
            padding: 10px 20px;
            font-size: 0.9em;
        }

        table th, table td {
            font-size: 0.9em;
            padding: 8px;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.8em;
        }

        nav a {
            font-size: 0.8em;
        }

        .module h2 {
            font-size: 1.3em;
        }

        .module p {
            font-size: 0.9em;
        }

        button {
            padding: 8px 16px;
            font-size: 0.8em;
        }

        table th, table td {
            font-size: 0.8em;
            padding: 6px;
        }
    }