:root { --primary-color: #d32f2f; --
secondary-color: #ff5252; --text-color: #333; --bg-color:
 #fff; }
        * { box-sizing: border-box; margin: 0; padding: 0
; }
        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line-height
: 1.6; color: var(--text-color); background: #fdfdfd; }
        .
container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        header { background: var(--bg-color); border-bottom: 2px solid var(--primary-color); padding
: 15px 0; position: sticky; top: 0; z-index: 1000;
 }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; }
        
.nav-links { display: flex; gap: 0; }
        .nav-links a { padding
: 10px 15px; text-decoration: none; color: var(--text-color); font-weight: 
600; transition: color 0.3s; }
        .hero { padding: 80px 0; text
-align: center; background: linear-gradient(135deg, #fff5f5, #ffe
bee); }
        h1 { font-size: 3rem; color: var(--primary-color); margin-bottom
: 20px; }
        .btn { display: inline-block; padding: 12px 30px;
 background: var(--primary-color); color: #fff; border-radius: 5px; text-decoration
: none; font-weight: bold; transition: transform 0.2s; }
        .btn:hover { transform:
 translateY(-2px); }
        section { padding: 60px 0; }
        .grid
 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1
fr)); gap: 30px; }
        .card { padding: 30px; background: #fff; border:
 1px solid #eee; border-radius: 8px; transition: box-shadow 0.3s; }
        
.card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0
.1); }
        table { width: 100%; border-collapse: collapse; margin-top
: 20px; }
        th, td { border: 1px solid #ddd; padding: 12
px; text-align: left; }
        footer { background: #222; color: #ccc
; padding: 40px 0; text-align: center; }
        .faq-item {
 margin-bottom: 15px; border-bottom: 1px solid #eee; padding-bottom: 10px
; }
        .faq-q { font-weight: bold; cursor: pointer; display: block; }
        
.faq-a { display: none; padding: 10px 0; color: #666; }