/* 全局样式设置，确保网页在各种设备上的一致性 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 设置整体字体与颜色方案 */
body {
    font-family: 'Roboto', sans-serif; /* 主字体 */
    background: radial-gradient(circle at top right, #FAF0E6 70%, #F5F5DC 25%, #FFA500 5%);
    color: #333333;
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

/* 固定导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(90deg, #556B2F, #F5F5DC);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 1000;
}

/* 导航链接样式 */
.navbar a {
    color: #FFFFFF;
    text-decoration: none;
    margin: 0 10px;
    font-family: 'Roboto', sans-serif;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #FFA500; /* 点缀色，悬停时颜色变化 */
}

/* 主内容区域的容器设置，确保有足够的留白 */
.container {
    max-width: 1200px;
    margin: 100px auto 50px; /* 顶部留出导航栏空间 */
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

/* 文章标题样式 */
.container h2 {
    font-family: 'Georgia', serif; /* 标题字体 */
    color: #556B2F;
    font-size: 2em;
    margin-bottom: 20px;
}

/* 文章副标题样式 */
.container h3 {
    font-family: 'Georgia', serif;
    color: #556B2F;
    font-size: 1.5em;
    margin: 20px 0;
}

/* 文章段落样式 */
.container p {
    font-size: 16px;
    color: #333333;
    margin-bottom: 15px;
    text-align: justify;
}

/* 代码块样式，与正文区分开 */
.container pre {
    background: #2D2D2D;
    color: #F8F8F2;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    margin-bottom: 20px;
}

/* 代码块内代码样式 */
.container code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}

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

.container th, .container td {
    border: 1px solid #556B2F;
    padding: 10px;
    text-align: left;
}

.container th {
    background-color: #556B2F;
    color: #FFFFFF;
}

.container td {
    background-color: #F5F5DC;
    color: #333333;
}

/* 图片样式，添加圆角、阴影和悬停效果 */
.container img {
    max-width: 650px;
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.container img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* 按钮样式 */
.button {
    background: linear-gradient(to right, #FFA500, #FF4500);
    border: none;
    padding: 10px 20px;
    color: #FFFFFF;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s ease, transform 0.3s ease;
}

.button:hover {
    background: linear-gradient(to right, #FF4500, #FFA500);
    transform: translateY(-3px);
}

/* 响应式设计，确保在不同设备上的良好显示 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        padding: 0 10px;
    }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar a {
        margin: 5px 0;
    }
}

/* 高级动画效果，应用于特定元素 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* 鼠标悬停时的阴影效果 */
.hover-shadow:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* 卡片式布局样式 */
.card {
    background-color: #FFFFFF;
    border: 1px solid #556B2F;
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* 折叠区域样式 */
.collapsible {
    background-color: #556B2F;
    color: #FFFFFF;
    cursor: pointer;
    padding: 10px 15px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 16px;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.collapsible:hover {
    background-color: #FFA500;
}

.content {
    padding: 0 15px;
    display: none;
    overflow: hidden;
    background-color: #F5F5DC;
    border-radius: 5px;
}

/* 提示信息样式 */
.notice {
    background-color: #FFD700;
    color: #333333;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    font-size: 18px;
    margin: 20px 0;
}