/* 基础样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        color: #fff;
        line-height: 1.6;
    }
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }
    h1, h2, h3 {
        font-family: 'Futura', sans-serif;
        color: #e0f7fa;
    }
    p {
        margin-bottom: 1em;
    }
    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
    }
    code {
        font-family: 'Roboto Mono', monospace;
        color: #ffeb3b;
    }
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 1em;
    }
    th, td {
        border: 1px solid #4dd0e1;
        padding: 10px;
        text-align: left;
    }
    th {
        background: rgba(255, 255, 255, 0.2);
    }
    .glass-card {
        background: rgba(255, 255, 255, 0.2);
        border-radius: 16px;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        padding: 20px;
        margin-bottom: 20px;
    }
    a {
        color: #00e5ff;
        text-decoration: none;
    }
    a:hover {
        color: #ff4081;
    }
    .ripple-effect {
        position: relative;
        overflow: hidden;
        cursor: pointer;
    }
    .ripple-effect::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        animation: ripple 0.6s ease-out;
    }
    @keyframes ripple {
        0% {
            width: 0;
            height: 0;
            opacity: 1;
        }
        100% {
            width: 200%;
            height: 200%;
            opacity: 0;
        }
    }
    img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
    }
    .alert {
        background: rgba(255, 235, 59, 0.2);
        border-left: 5px solid #ffeb3b;
        padding: 10px 20px;
        margin-bottom: 20px;
    }
    @media (max-width: 480px) {
        h1 { font-size: 1.5em; }
        .container { padding: 10px; }
    }
    @media (min-width: 481px) and (max-width: 768px) {
        h1 { font-size: 2em; }
    }
    @media (min-width: 769px) and (max-width: 1024px) {
        h1 { font-size: 2.5em; }
    }
    @media (min-width: 1025px) and (max-width: 1440px) {
        h1 { font-size: 3em; }
    }
    @media (min-width: 1441px) {
        h1 { font-size: 3.5em; }
    }