/* 页面整体布局 */
.content {
    padding-top: 80px;
}

/* 页面头部样式 */
.page-header {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-header .subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 主要内容区域 */
.main-content {
    float: left;
    width: 70%;
    padding-right: 2rem;
}

/* 侧边栏 */
.sidebar {
    float: right;
    width: 30%;
    padding-left: 2rem;
}

/* 清除浮动 */
.container::after {
    content: "";
    display: table;
    clear: both;
}

/* 内容区块样式 */
section {
    margin-bottom: 3rem;
}

h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* 分类列表样式 */
.category-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.category-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.read-more {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    margin-top: 1rem;
    font-weight: bold;
}

.read-more:hover {
    text-decoration: underline;
}

/* 快速事实侧边栏 */
.quick-facts {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.quick-facts li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.quick-facts li:last-child {
    border-bottom: none;
}