/* 全局样式设置 */
body {
    font-family: 'Helvetica', sans-serif; /* 正文字体 */
    font-size: 16px; /* 正文字号 */
    line-height: 1.6; /* 行高 */
    color: #FFFFFF; /* 文字颜色 */
    background: linear-gradient(135deg, #0C2D48 70%, #353C4E 25%, #34C759 5%); /* 渐变背景 */
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(12, 45, 72, 0.9); /* 半透明背景 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 阴影效果 */
}

.navbar a {
    color: #FFFFFF;
    text-decoration: none;
    margin: 0 10px;
    font-size: 16px;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #34C759; /* 点缀色在悬停时变化 */
}

/* 主容器样式 */
.container {
    padding: 100px 20px 20px 20px; /* 上方预留导航栏空间 */
    display: grid;
    grid-template-columns: 1fr 3fr 1fr;
    gap: 20px;
}

/* 侧边栏样式 */
.sidebar {
    background-color: #353C4E;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.sidebar h3 {
    color: #34C759;
    margin-bottom: 10px;
}

.sidebar a {
    display: block;
    color: #FFFFFF;
    text-decoration: none;
    margin: 5px 0;
    padding: 8px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.sidebar a:hover {
    background-color: #FF9F0A; /* 橙色点缀 */
}

/* 主内容区样式 */
.main-content {
    grid-column: 2 / 3;
}

.main-content h2, .main-content h3, .main-content h4 {
    color: #34C759; /* 辅助色 */
    margin-top: 20px;
    margin-bottom: 10px;
}

.main-content section {
    background-color: #353C4E;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.main-content pre {
    background-color: #0C2D48;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    color: #34C759;
    margin: 15px 0;
}

.main-content code {
    background-color: #0C2D48;
    padding: 2px 4px;
    border-radius: 3px;
    color: #34C759;
}

/* 图片样式 */
img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 6px 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 10px 15px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr 2fr;
    }
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

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

    .navbar a {
        margin: 5px 0;
    }

    .sidebar {
        display: none;
    }
}

/* 微交互效果 */
button, .button {
    background-color: #34C759;
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover, .button:hover {
    background-color: #FF9F0A;
    transform: translateY(-2px);
}

/* 提示文本样式 */
.prompt-text {
    background-color: rgba(255, 159, 10, 0.8);
    color: #FFFFFF;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
    font-size: 18px;
    margin-bottom: 20px;
}

/* 代码示例样式 */
.code-example {
    background-color: #0C2D48;
    padding: 20px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 20px 0;
}

.code-example code {
    color: #34C759;
    font-family: 'Courier New', Courier, monospace;
}

/* 导航系统样式 */
.chapter-nav {
    position: sticky;
    top: 100px;
    background-color: #353C4E;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.chapter-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.chapter-nav li {
    margin: 10px 0;
}

.chapter-nav a {
    color: #34C759;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

.chapter-nav a:hover {
    color: #FF9F0A;
}

/* 底部样式 */
.footer {
    background-color: #0C2D48;
    color: #FFFFFF;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* 动画关键帧 */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.data-point {
    animation: pulse 2s infinite;
}

/* 过渡效果 */
.transition-effect {
    transition: all 0.3s ease;
}

.transition-effect:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2);
}

/* 卡片式布局 */
.card {
    background-color: #353C4E;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
}

/* 过渡页面切换 */
.page-transition {
    transition: opacity 0.5s ease-in-out;
}

.page-transition-enter {
    opacity: 0;
}

.page-transition-enter-active {
    opacity: 1;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
}

/* 面包屑导航样式 */
.breadcrumb {
    background-color: #0C2D48;
    padding: 10px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.breadcrumb a {
    color: #34C759;
    text-decoration: none;
    margin-right: 5px;
}

.breadcrumb a::after {
    content: '>';
    margin-left: 5px;
    color: #FFFFFF;
}

.breadcrumb a:last-child::after {
    content: '';
}

/* 搜索框样式 */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input[type="text"] {
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    width: 200px;
    transition: width 0.3s ease;
}

.search-box input[type="text"]:focus {
    width: 250px;
    outline: none;
}

.search-box button {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    color: #34C759;
    cursor: pointer;
}

/* 视频与音频嵌入样式 */
.media-embed {
    width: 100%;
    height: 400px;
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table, th, td {
    border: 1px solid #34C759;
}

th, td {
    padding: 10px;
    text-align: left;
}

th {
    background-color: #0C2D48;
    color: #34C759;
}

tr:nth-child(even) {
    background-color: #353C4E;
}

tr:hover {
    background-color: #34C759;
    color: #0C2D48;
}

/* 列表样式 */
ul, ol {
    margin: 20px 0;
    padding: 0 20px;
}

li {
    margin-bottom: 10px;
}

/* 表单元素样式 */
form input, form textarea, form select {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: none;
    border-radius: 5px;
}

form input[type="submit"] {
    background-color: #34C759;
    color: #FFFFFF;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

form input[type="submit"]:hover {
    background-color: #FF9F0A;
}