/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    line-height: 1.6;
}

/* 头部样式 */
header {
    background-color: #007BFF; /* 修改导航背景颜色为蓝色 */
    padding: 15px 0;
    color: white;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

nav a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #007BFF;
}

.search-box input {
    padding: 8px;
    font-size: 14px;
    border-radius: 4px;
    border: none;
}

/* 内容容器样式 */
.content-container {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 20px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

.breadcrumb {
    font-size: 14px;
    margin-bottom: 15px;
    color: #777;
}

.breadcrumb a {
    color: #777;
    text-decoration: none;
    margin-right: 5px;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #007BFF;
}

h1 {
    font-size: 28px;
    color: #333;
    margin-bottom: 15px;
}

h2 {
    font-size: 22px;
    margin-top: 30px;
    color: #444;
}

.manual-meta {
    font-size: 16px;
    color: #555;
    margin-bottom: 20px;
}

.manual-cover {
    float: right;
    margin-left: 20px;
    width: 300px;
    max-width: 100%;
    height: auto;
    border: 1px solid #ccc;
    border-radius: 5px;
}

ul {
    padding-left: 20px;
}

button.download-btn {
    background-color: #007BFF;
    color: white;
    padding: 12px 25px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    margin-top: 15px;
    transition: background-color 0.3s ease;
}

button.download-btn:hover {
    background-color: #0056b3;
}

.keywords {
    background: #f9f9f9;
    padding: 15px;
    font-size: 14px;
    border-left: 4px solid #007BFF;
    margin-top: 20px;
}

.related-links a {
    display: inline-block;
    margin: 5px 10px 0 0;
    font-size: 14px;
    color: #007BFF;
    text-decoration: none;
    transition: color 0.3s ease;
}

.related-links a:hover {
    color: #0056b3;
}