/* 基本样式设置 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1E90FF 70%, #2F4F4F 25%, #FFA500 5%);
    color: #333;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(30, 144, 255, 0.9);
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
}

.navbar ul {
    display: flex;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar li {
    position: relative;
    margin: 0 15px;
}

.navbar a {
    color: #fff;
    text-decoration: none;
    padding: 8px 12px;
    transition: background-color 0.3s ease;
}

.navbar a:hover {
    background-color: #FFA500;
    border-radius: 4px;
}

/* 下拉菜单样式 */
.navbar li ul {
    display: none;
    position: absolute;
    top: 40px;
    left: 0;
    background-color: #fff;
    color: #000;
    list-style: none;
    padding: 10px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.navbar li:hover ul {
    display: block;
}

.navbar li ul li {
    margin: 0;
    padding: 0;
}

.navbar li ul li a {
    color: #333;
    padding: 8px 20px;
    display: block;
}

.navbar li ul li a:hover {
    background-color: #f0f0f0;
}

/* 主要内容区域 */
.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 80px 20px 20px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.module {
    background-color: #fff;
    color: #333;
    width: 30%;
    margin: 15px 0;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.module:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}

.module img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.module img:hover {
    transform: scale(1.05);
}

/* 文章内容样式 */
article {
    background-color: #f9f9f9;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    margin-top: 20px;
}

article h2, article h3, article h4 {
    color: #1E90FF;
    margin-bottom: 15px;
}

article p {
    line-height: 1.6;
    margin-bottom: 15px;
}

article pre {
    background-color: #2F4F4F;
    color: #fff;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 15px;
}

article code {
    background-color: #e0e0e0;
    padding: 2px 4px;
    border-radius: 4px;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
}

table th {
    background-color: #1E90FF;
    color: #fff;
}

table tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}

/* 图片样式 */
img {
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .module {
        width: 45%;
    }
}

@media (max-width: 768px) {
    .navbar ul {
        flex-direction: column;
        align-items: center;
    }

    .navbar li {
        margin: 10px 0;
    }

    .module {
        width: 100%;
    }
}

/* 关键帧动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 2s ease-in;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.rotate {
    animation: rotate 5s linear infinite;
}

/* 代码块样式 */
.code-example {
    background-color: #2F4F4F;
    color: #fff;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
}

.code-example code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}

/* 提示信息样式 */
.prompt {
    background-color: #FFA500;
    color: #fff;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-size: 18px;
    margin: 20px 0;
}