:
root { --primary-red: #d32f2f; --dark-text: #2c3e
50; --light-bg: #fdf2f2; --white: #ffffff; }
        * {
 box-sizing: border-box; margin: 0; padding: 0; }
        body { font
-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line-height: 1.6; color: var
(--dark-text); background-color: #fff; }
        .container { max-width: 1200px
; margin: 0 auto; padding: 0 20px; }
        header { background: var(--white); padding
: 20px 0; border-bottom: 2px solid var(--primary-red); position: sticky; top: 
0; z-index: 1000; }
        nav { display: flex; align-items: center
; justify-content: space-between; }
        .nav-links { display: flex; gap: 
0; list-style: none; }
        .nav-links a { text-decoration: none; color
: var(--dark-text); padding: 10px 15px; font-weight: 6
00; }
        .hero { padding: 100px 0; text-align: center; background
: linear-gradient(135deg, #fff5f5 0%, #fff 100%); }

        h1 { font-size: 3rem; color: var(--primary-red); margin-bottom: 20px;
 }
        .btn { display: inline-block; padding: 12px 30px; background: var(--primary
-red); color: #fff; border-radius: 5px; text-decoration: none; font-weight: bold; transition
: 0.3s; }
        section { padding: 80px 0; }
        .grid
 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1
fr)); gap: 30px; margin-top: 40px; }
        .card { padding
: 30px; border: 1px solid #eee; border-radius: 10px;
 transition: 0.3s; box-shadow: 0 4px 6px rgba(0,
0,0,0.05); }
        .card:hover { transform: translateY(-5px);
 box-shadow: 0 10px 20px rgba(0,0,0,0.
1); }
        table { width: 100%; border-collapse: collapse; margin-top:
 30px; }
        th, td { padding: 15px; border: 1px solid #eee;
 text-align: left; }
        footer { background: #333; color: #fff; padding: 5
0px 0; text-align: center; }
        .form-group { margin-bottom: 1
5px; text-align: left; }
        input, select, textarea { width: 100%; padding: 
10px; margin-top: 5px; border: 1px solid #ccc; border-radius: 4px;
 }