/* 全局样式 */
body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #00008B, #4B0082, #00FF7F);
    color: #FFFFFF;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}
h1, h2, h3, h4 {
    color: #00FFFF;
    text-align: center;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
}
p {
    max-width: 800px;
    margin: 20px auto;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 8px;
}
pre {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    color: #00FF7F;
    font-family: 'Courier New', Courier, monospace;
}
ul, table {
    max-width: 800px;
    margin: 20px auto;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 8px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    border: 1px solid #00FFFF;
    padding: 10px;
    text-align: left;
}
a {
    color: #FF1493;
    text-decoration: none;
    transition: color 0.3s;
}
a:hover {
    color: #00FFFF;
}
button {
    background-color: #00FFFF;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    color: #000;
    cursor: pointer;
    transition: background-color 0.3s;
    border-radius: 5px;
}
button:hover {
    background-color: #FF1493;
}
img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 8px;
    margin: 10px;
}
.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.card {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid #00FF7F;
    border-radius: 10px;
    margin: 15px;
    padding: 20px;
    width: 300px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 255, 127, 0.7);
}
@media (max-width: 1440px) {
    .container {
        flex-direction: row;
    }
}
@media (max-width: 1200px) {
    .container {
        flex-direction: column;
    }
}
@media (max-width: 1024px) {
    body {
        padding: 10px;
    }
    h1 {
        font-size: 2em;
    }
}
@media (max-width: 768px) {
    h1 {
        font-size: 1.8em;
    }
    p, ul, table {
        padding: 8px;
    }
}
@media (max-width: 480px) {
    h1 {
        font-size: 1.5em;
    }
    .card {
        width: 100%;
    }
}
@media (max-width: 320px) {
    h1 {
        font-size: 1.2em;
    }
    p, ul, table {
        padding: 5px;
    }
}
.annotation {
    text-align: center;
    margin-top: 20px;
    font-size: 1em;
    color: #FFD700;
    text-shadow: 0 0 5px rgba(255, 215, 0, 0.7);
}