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

    body {
        font-family: 'Roboto', sans-serif;
        color: #ffffff;
        background: radial-gradient(circle, rgba(15, 32, 39, 0.9), transparent), url('https://images.gptkong.com/demo/sample1.png') no-repeat center center fixed;
        background-size: cover;
        line-height: 1.6;
        padding: 20px;
    }

    h1, h2, h3, h4 {
        font-family: 'Helvetica Neue', sans-serif;
        font-weight: bold;
        color: #00ff80;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 2.5em;
        text-align: center;
        margin-top: 40px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    h2 {
        font-size: 2em;
        margin-top: 40px;
    }

    h3 {
        font-size: 1.75em;
        margin-top: 30px;
    }

    p {
        font-size: 1em;
        margin-bottom: 20px;
        color: #ffffff;
        text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff80;
    }

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

    table, th, td {
        border: 1px solid #00ff80;
    }

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

    th {
        background-color: rgba(0, 255, 128, 0.2);
    }

    ul {
        list-style-type: disc;
        margin-left: 20px;
        margin-bottom: 20px;
    }

    /* 卡片样式 */
    .card {
        background-color: rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        margin-bottom: 30px;
    }

    /* 动画效果 */
    @keyframes starMovement {
        0% { transform: translateY(0); }
        100% { transform: translateY(-20px); }
    }

    .star {
        position: absolute;
        width: 2px;
        height: 2px;
        background-color: white;
        animation: starMovement 10s infinite linear;
    }

    /* 渐变效果 */
    .gradient-text {
        background: linear-gradient(135deg, #0F2027, #203A43, #2C5364);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    /* 响应式设计 */
    @media (max-width: 320px) {
        body {
            padding: 10px;
        }
        h1 {
            font-size: 1.8em;
        }
        h2 {
            font-size: 1.5em;
        }
        p, code {
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 2em;
        }
        h2 {
            font-size: 1.6em;
        }
    }

    @media (max-width: 768px) {
        .card {
            padding: 15px;
            font-size: 0.95em;
        }
    }

    @media (max-width: 1024px) {
        body {
            padding: 15px;
        }
        .card {
            padding: 18px;
        }
    }

    @media (max-width: 1200px) {
        h1 {
            font-size: 2.3em;
        }
    }

    @media (min-width: 1440px) {
        body {
            padding: 30px;
        }
        h1 {
            font-size: 3em;
        }
    }

    /* 链接样式 */
    a {
        color: #00ff80;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 图片样式 */
    img {
        width: 100%;
        max-width: 320px;
        height: auto;
        border-radius: 8px;
        margin-bottom: 20px;
    }

    /* 模糊透明效果 */
    .blur-effect {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }

    /* 按钮样式 */
    .btn {
        background-color: #00ff80;
        border: none;
        color: #000;
        padding: 10px 20px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 1em;
        margin: 10px 2px;
        cursor: pointer;
        border-radius: 5px;
        transition: background-color 0.3s ease;
    }

    .btn:hover {
        background-color: #00e676;
    }

    /* 加载进度条 */
    .progress-bar {
        width: 100%;
        background: rgba(0, 255, 128, 0.2);
        border-radius: 5px;
        overflow: hidden;
        margin-bottom: 20px;
    }

    .progress-bar::after {
        content: '';
        display: block;
        width: 0;
        height: 10px;
        background: linear-gradient(90deg, #00ff80, #ff6ec7);
        animation: load 3s infinite;
    }

    @keyframes load {
        0% { width: 0; }
        50% { width: 100%; }
        100% { width: 0; }
    }

    /* 视差滚动 */
    .parallax {
        background-attachment: fixed;
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center;
    }

    /* 模态窗口 */
    .modal {
        display: none;
        position: fixed;
        z-index: 100;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        overflow: auto;
        background-color: rgba(0,0,0,0.7);
    }

    .modal-content {
        background-color: rgba(255, 255, 255, 0.1);
        margin: 10% auto;
        padding: 20px;
        border: 1px solid #00ff80;
        width: 80%;
        border-radius: 10px;
    }

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

    .close:hover,
    .close:focus {
        color: #ff6ec7;
        text-decoration: none;
    }

    /* 表单禁用样式 */
    input, textarea, select, button {
        pointer-events: none;
        background-color: transparent;
        border: none;
    }

    /* 提示文字 */
    .reference-note {
        text-align: center;
        font-size: 1em;
        margin: 20px 0;
        color: #ff6ec7;
    }