/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    color: #ffffff;
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Baskerville', serif;
    color: #eaeaea;
    margin-bottom: 20px;
}

p {
    font-size: 16px;
    margin-bottom: 15px;
}

a {
    color: #67c23a;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button, .button {
    background-color: #67c23a;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

button:hover, .button:hover {
    background-color: #52b788;
    transform: scale(1.05);
}

/* 布局与模块化设计 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.section {
    padding: 40px 0;
    position: relative;
}

.section:nth-child(odd) {
    background: rgba(255, 255, 255, 0.05);
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.grid-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.grid-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    alt: "";
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 1s ease-in-out;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    h1, h2, h3, h4 {
        font-size: 1.5em;
    }

    p {
        font-size: 14px;
    }
}

/* 特殊样式 */
pre {
    background: #2d2d2d;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    white-space: pre-wrap;
}

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

th, td {
    border: 1px solid #444;
    padding: 10px;
    text-align: left;
}

th {
    background: #333;
}

blockquote {
    border-left: 4px solid #67c23a;
    padding: 10px;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.05);
}

/* 提示信息 */
.note {
    text-align: center;
    font-size: 18px;
    margin-top: 20px;
    color: #67c23a;
}