/* 
整体页面样式设定
采用深蓝色和灰黑色作为主色调，搭配亮黄色和青绿色作为点缀色，确保色彩比例符合黄金比例（70%主色、25%辅色、5%点缀色）
*/
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1E272E 70%, #353B48 25%);
    color: #FFFFFF;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(30, 39, 46, 0.9);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.navbar .logo {
    font-size: 1.5em;
    color: #F7DC6F;
    text-decoration: none;
}

.navbar .nav-links {
    display: flex;
    gap: 20px;
}

.navbar .nav-links a {
    color: #F7DC6F;
    text-decoration: none;
    font-size: 1em;
    transition: color 0.3s ease;
}

.navbar .nav-links a:hover {
    color: #2ECC71;
}

/* 主内容区样式 */
.container {
    max-width: 1200px;
    margin: 100px auto 50px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 3fr;
    grid-gap: 40px;
}

/* 侧边导航栏样式 */
.sidebar {
    position: sticky;
    top: 100px;
    background-color: #2C3A47;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.sidebar h3 {
    color: #F7DC6F;
    margin-bottom: 15px;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin-bottom: 10px;
}

.sidebar ul li a {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 1em;
    transition: color 0.3s ease;
}

.sidebar ul li a:hover {
    color: #2ECC71;
}

/* 文章内容样式 */
.article-content h2,
.article-content h3,
.article-content h4 {
    color: #F7DC6F;
    margin-top: 30px;
    margin-bottom: 15px;
}

.article-content p {
    margin-bottom: 20px;
    font-size: 1em;
}

.article-content pre {
    background-color: #1E272E;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
}

.article-content code {
    color: #2ECC71;
    font-family: 'Courier New', Courier, monospace;
}

/* 图片样式 */
.article-content img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
    margin-bottom: 20px;
}

.article-content img:hover {
    transform: scale(1.05);
}

/* 按钮样式 */
.button {
    background-color: #F7DC6F;
    border: none;
    padding: 10px 20px;
    color: #1E272E;
    font-size: 1em;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.button:hover {
    background-color: #2ECC71;
}

.button:active {
    transform: scale(0.98);
}

/* 折叠内容样式 */
.collapsible {
    background-color: #353B48;
    color: #FFFFFF;
    cursor: pointer;
    padding: 10px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 1em;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.collapsible:hover {
    background-color: #2ECC71;
}

.content {
    padding: 0 15px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: #1E272E;
    border-radius: 5px;
    margin-bottom: 20px;
}

.active + .content {
    max-height: 500px;
}

/* 代码示例样式区分 */
.code-example {
    background-color: #1E272E;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
}

.code-example code {
    color: #2ECC71;
    font-family: 'Courier New', Courier, monospace;
}

/* 底部区域样式 */
.footer {
    background-color: #1E272E;
    color: #FFFFFF;
    padding: 30px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.footer h3 {
    color: #F7DC6F;
    margin-bottom: 15px;
}

.footer a {
    color: #2ECC71;
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: #F7DC6F;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: relative;
        top: 0;
    }
    .navbar .nav-links {
        display: none;
    }
    .navbar .hamburger {
        display: block;
        cursor: pointer;
    }
    .navbar .hamburger div {
        width: 25px;
        height: 3px;
        background-color: #F7DC6F;
        margin: 4px 0;
        transition: all 0.3s ease;
    }
    .navbar.active .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 30px;
        background-color: #2C3A47;
        padding: 20px;
        border-radius: 8px;
    }
}