/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to right, #1e272e, #8f94fb);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #ff9a00;
}
h1 {
    text-align: center;
    font-size: 2.5rem;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}
p {
    font-size: 1rem;
    margin-bottom: 15px;
    text-align: justify;
}
a {
    color: #ff7e00;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #ff5c00;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    width: 100%;
}
.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.3);
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}
button {
    background-color: #ff9a00;
    border: none;
    color: #fff;
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    background-color: #ff7e00;
    transform: scale(1.1);
}
pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    color: #ff9a00;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.3);
}
th {
    background: rgba(255, 255, 255, 0.1);
}
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    .grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    h1 {
        font-size: 1.8rem;
    }
    p {
        font-size: 0.9rem;
    }
}