/* 全局样式设置 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto Slab', serif;
    background: linear-gradient(135deg, #f0e6d6, #d1c4a8);
    color: #333;
    line-height: 1.6;
}
/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(90deg, #8b4513, #a0522d);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 1000;
}
.navbar .logo {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
}
.navbar ul {
    list-style: none;
    display: flex;
    gap: 25px;
}
.navbar ul li a {
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    transition: color 0.3s ease, transform 0.3s ease;
}
.navbar ul li a:hover {
    color: #ff6347;
    transform: scale(1.1);
}
/* 侧边菜单样式 */
.side-menu {
    position: fixed;
    left: -300px;
    top: 0;
    width: 300px;
    height: 100%;
    background: #ffe4c4;
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
    transition: left 0.3s ease;
    padding: 60px 20px;
}
.side-menu.open {
    left: 0;
}
.side-menu ul {
    list-style: none;
    padding: 0;
}
.side-menu ul li a {
    display: block;
    padding: 15px 0;
    color: #8b4513;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s ease;
}
.side-menu ul li a:hover {
    color: #ff4500;
}
/* 主内容区域样式 */
.main-content {
    padding: 100px 50px 50px 50px;
    max-width: 1200px;
    margin: 0 auto;
}
/* 网格布局 */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}
.grid-item {
    background: #fff8dc;
    border: 2px solid #d2b48c;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.grid-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}
/* 图片样式 */
.grid-item img {
    width: 100%;
    max-width: 650px;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}
.grid-item img:hover {
    transform: scale(1.05);
}
/* 文章内容样式 */
article {
    background: #fff8dc;
    padding: 30px;
    border: 2px solid #d2b48c;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    margin-top: 50px;
}
article h2, article h3, article h4 {
    color: #8b4513;
}
article pre {
    background: #f5f5dc;
    padding: 15px;
    border-left: 5px solid #d2b48c;
    overflow-x: auto;
    border-radius: 5px;
    margin: 20px 0;
}
article code {
    font-family: 'Courier New', Courier, monospace;
    color: #2e8b57;
}
/* 按钮样式 */
.btn-primary {
    background: linear-gradient(45deg, #ff7f50, #ff4500);
    border: none;
    border-radius: 5px;
    color: #fff;
    padding: 12px 25px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}
.btn-primary:hover {
    background: linear-gradient(45deg, #ff4500, #ff6347);
    transform: scale(1.05);
}
.btn-primary:active {
    transform: scale(0.95);
    box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
}
/* 响应式设计 */
@media (max-width: 768px) {
    .navbar ul {
        display: none;
    }
    .side-menu {
        width: 250px;
    }
    .main-content {
        padding: 100px 20px 20px 20px;
    }
}
@media (min-width: 769px) {
    .navbar ul {
        display: flex;
    }
}
/* 点缀元素 */
.decorative-line {
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #ff6347, #8b4513);
    margin: 30px 0;
    border: none;
}
.shadow-text {
    text-shadow: 2px 2px 5px rgba(0,0,0,0.2);
}
/* 折叠区域样式 */
.collapsible {
    background-color: #ffe4b5;
    color: #8b4513;
    cursor: pointer;
    padding: 15px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 18px;
    transition: background 0.3s ease;
    border-radius: 5px;
    margin-top: 20px;
}
.collapsible:hover {
    background-color: #ffdab9;
}
.collapsible:after {
    content: '\002B';
    float: right;
    margin-left: 5px;
}
.active:after {
    content: "\2212";
}
.content {
    padding: 0 15px;
    display: none;
    overflow: hidden;
    background-color: #fffaf0;
    border-left: 3px solid #d2b48c;
    border-right: 3px solid #d2b48c;
    border-bottom: 3px solid #d2b48c;
    border-radius: 0 0 5px 5px;
    margin-bottom: 20px;
}
.code-sample {
    background: #f5f5dc;
    padding: 15px;
    border-left: 5px solid #d2b48c;
    border-radius: 5px;
    overflow-x: auto;
    margin: 20px 0;
    font-family: 'Courier New', Courier, monospace;
    color: #2e8b57;
}