/* 全局样式初始化，确保不同浏览器下的一致性 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 设置字体和基本颜色 */
body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #002f6c 70%, #ff7f50 25%, #28a745 5%);
    color: #333333;
    padding: 20px;
}

/* 主要容器，使用流式布局 */
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* 导航栏样式 */
.navbar {
    width: 100%;
    background-color: #002f6c;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    z-index: 1000;
}

.navbar a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    position: relative;
}

.navbar a:hover {
    color: #ff7f50;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #ffffff;
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 1;
}

.dropdown-content a {
    color: #333333;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}

.dropdown-content a:hover {
    background-color: #f1f1f1;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* 主内容区样式 */
.main-content {
    margin-top: 100px;
    width: 100%;
    padding: 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .main-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 992px) {
    .main-content {
        grid-template-columns: 1fr 2fr;
    }
}

/* 文章样式 */
article {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

h2, h3, h4 {
    font-family: 'Merriweather', serif;
    margin-bottom: 15px;
}

h2 {
    color: #002f6c;
    font-size: 2em;
}

h3 {
    color: #ff7f50;
    font-size: 1.5em;
}

pre {
    background-color: #f5f5f5;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin: 10px 0;
}

code {
    font-family: 'Source Code Pro', monospace;
    color: #d14;
}

/* 图片样式 */
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

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

/* 提示信息样式 */
.notice {
    background-color: #28a745;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.2em;
}

/* 代码块样式 */
.code-block {
    background-color: #2d2d2d;
    color: #ccc;
    padding: 15px;
    border-radius: 5px;
    font-family: 'Courier New', Courier, monospace;
    overflow-x: auto;
}

/* 高亮关键字 */
.code-block .keyword {
    color: #569cd6;
    font-weight: bold;
}

/* 按钮样式 */
.button {
    background-color: #ff7f50;
    color: #ffffff;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.button:hover {
    background-color: #e06b3c;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* 悬停效果 */
.hover-effect:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}

/* 响应式调整 */
@media (max-width: 480px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .main-content {
        grid-template-columns: 1fr;
    }
}