/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f4f5fa;
}

/* 头部样式 */
.site-header {
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: #1890ff;
}

/* 主要内容区域 */
.main-content {
    min-height: calc(100vh - 120px);
    padding: 2rem 0;
}

/* 页面标题 */
.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    color: #333;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.btn-primary {
    background: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
}

/* 页脚样式 */
.site-footer {
    background: #fff;
    padding: 2rem 0;
    margin-top: 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.footer-info {
    margin-bottom: 1rem;
}

.footer-copyright {
    color: #666;
    font-size: 0.875rem;
}