*{margin:0;padding:0;box-sizing:border-box;font-family:"PingFang SC","Microsoft YaHei",sans-serif}
body{background:#f7f8fa;color:#222;line-height:1.8}
a{text-decoration:none;color:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 15px}
.container h1{text-align:center}
.header{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.06);position:sticky;top:0;z-index:100}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:70px}
.logo{display:flex;align-items:center;gap:15px;font-size:24px;font-weight:700;color:#b70000}
.logo img{width:50px;height:auto;display:block}
.logo span{font-weight:bold}
.nav{display:flex;gap:24px;flex-wrap:wrap;align-items:center;position:relative}
.nav a{font-size:15px;color:#333;font-weight:500;transition:color 0.2s ease;white-space:nowrap}
.nav a:hover{color:#b70000}
.banner{height:280px;background:linear-gradient(120deg,#b70000,#7c0000);color:#fff;display:flex;align-items:center}
.section{padding:40px 0;background:#fff;border-radius:12px;margin:20px 0;box-shadow:0 2px 10px rgba(0,0,0,0.04)}
.title{text-align:center;font-size:26px;font-weight:600;margin-bottom:30px}
.article-list{display:flex;flex-direction:column;gap:20px}
.article-item{padding:22px;background:#f9f9f9;border-radius:10px}
.article-item h3{font-size:17px;margin-bottom:8px;color:#222}
.article-item p{font-size:14px;color:#555}
.info{color:#999;font-size:12px;margin-top:6px}
.footer{background:#222;color:#fff;padding:40px 0;text-align:center;margin-top:40px}
.city-dropdown{
  position:absolute;top:100%;left:0;right:0;background:#fff;
  box-shadow:0 4px 12px rgba(0,0,0,0.1);border-radius:8px;padding:12px 16px;
  display:none;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:8px;z-index:99
}
.city-dropdown.show{display:grid}
.city-dropdown a{padding:6px 4px;text-align:center}