/* 全局样式设置 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #1e1e1e, #2c2c2c);
    color: #ffffff;
    line-height: 1.6;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(34, 34, 34, 0.9);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
    z-index: 1000;
}

.navbar a {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

.navbar a:hover {
    color: #1abc9c;
}

/* 主要内容区样式 */
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 100px 50px 50px 50px;
}

/* 文章样式 */
article {
    background: #2c2c2c;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

article h2, article h3 {
    color: #1abc9c;
}

article pre {
    background: #1e1e1e;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    margin: 20px 0;
}

/* 图片样式 */
img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.5);
    transition: transform 0.3s, box-shadow 0.3s;
}

img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0,0,0,0.7);
}

/* 提示信息样式 */
.banner {
    text-align: center;
    padding: 20px;
    background: #1abc9c;
    color: #ffffff;
    font-size: 18px;
    border-radius: 5px;
    margin-bottom: 30px;
}

/* 折叠区域样式 */
.collapsible {
    background-color: #1e1e1e;
    color: #ffffff;
    cursor: pointer;
    padding: 10px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 16px;
    margin-top: 10px;
}

.active, .collapsible:hover {
    background-color: #555;
}

.content {
    padding: 0 18px;
    display: none;
    background-color: #2c2c2c;
    overflow: hidden;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
    }

    .container {
        padding: 100px 20px 20px 20px;
    }
}

/* 代码块样式区分 */
.code-block {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
}

.code-block code {
    color: #f1c40f;
    font-family: 'Courier New', Courier, monospace;
}

/* 按钮样式 */
.button {
    background-color: #1abc9c;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px 0;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.3s;
}

.button:hover {
    background-color: #16a085;
    transform: translateY(-2px);
}