/* 基础样式与布局 */
body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #0074D9, #8E44AD);
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto Condensed', sans-serif;
    color: #FFC300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}
a {
    color: #FFC300;
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}
a:hover {
    color: #FFA500;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 20px;
    transition: transform 0.3s ease-in-out;
}
.card:hover {
    transform: scale(1.05);
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}
pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}
button {
    background-color: #0074D9;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease-in-out;
}
button:active {
    background-color: #0056b3;
}
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    .card {
        padding: 15px;
    }
}
/* 动画与交互效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.fade-in {
    animation: fadeIn 1.5s ease-in-out;
}
.pulse {
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}