/* 简约白 · 手机壳（仅移动布局，独立站点 /m/） */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:15px;line-height:1.6;color:#1e293b;background:#f8fafc;
}
a{color:#2563eb;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.m-shell{min-height:100vh;display:flex;flex-direction:column}
.m-header{
  position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid #e2e8f0;
  box-shadow:0 1px 3px rgba(15,23,42,.06);
}
.m-header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;gap:10px}
.m-logo{display:flex;align-items:center;gap:8px;min-width:0;color:#0f172a;font-weight:600;font-size:16px}
.m-logo img{max-height:36px;width:auto;max-width:160px}
.m-logo-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600;font-size:16px;color:#0f172a}
.m-menu-btn{
  flex-shrink:0;width:40px;height:40px;border:0;background:transparent;border-radius:8px;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.m-menu-btn span{display:block;width:20px;height:2px;background:#334155;position:relative}
.m-menu-btn span::before,.m-menu-btn span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:#334155;
}
.m-menu-btn span::before{top:-6px}
.m-menu-btn span::after{top:6px}
.m-nav{
  display:none;background:#fff;border-top:1px solid #e2e8f0;padding:8px 0 12px;
}
.m-nav.open{display:block}
.m-nav-home{
  display:block;padding:12px 18px;color:#334155;font-size:15px;font-weight:600;
  border-left:3px solid transparent;border-bottom:1px solid #f1f5f9;
}
.m-nav-home.active{color:#2563eb;background:#eff6ff;border-left-color:#2563eb}
.m-nav-group{border-bottom:1px solid #f1f5f9}
.m-nav a.m-nav-top{
  display:block;padding:12px 18px;color:#0f172a;font-size:15px;font-weight:600;
  border-left:3px solid transparent;
}
.m-nav a.m-nav-top.active{color:#2563eb;background:#eff6ff;border-left-color:#2563eb}
.m-nav-sub{background:#f8fafc;padding:6px 0 10px}
.m-nav-sub a{
  display:block;padding:9px 18px 9px 32px;color:#64748b;font-size:14px;
  border-left:3px solid transparent;position:relative;
}
.m-nav-sub a::before{
  content:"";position:absolute;left:20px;top:50%;width:4px;height:4px;
  margin-top:-2px;border-radius:50%;background:#cbd5e1;
}
.m-nav-sub a:active,.m-nav-sub a:hover{color:#2563eb}
.m-main{flex:1;padding-bottom:24px}
.m-hero{position:relative;overflow:hidden;background:#e2e8f0}
.m-hero-slide{display:none}
.m-hero-slide.active{display:block}
.m-hero img{width:100%;aspect-ratio:16/9;object-fit:cover}
.m-hero-cap{
  position:absolute;left:0;right:0;bottom:0;padding:20px 16px 14px;
  background:linear-gradient(transparent,rgba(15,23,42,.65));color:#fff;
}
.m-hero-cap h2{margin:0;font-size:18px;font-weight:600}
.m-hero-dots{display:flex;justify-content:center;gap:6px;padding:10px 0;background:#fff}
.m-hero-dots button{
  width:7px;height:7px;border-radius:50%;border:0;padding:0;background:#cbd5e1;cursor:pointer;
}
.m-hero-dots button.active{background:#2563eb;width:18px;border-radius:4px}
.m-section{padding:20px 16px}
.m-section-title{
  margin:0 0 14px;font-size:17px;font-weight:600;color:#0f172a;
  display:flex;align-items:center;justify-content:space-between;
}
.m-section-title a{font-size:13px;font-weight:400;color:#64748b}
.m-card-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.m-card{
  background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 3px rgba(15,23,42,.08);
}
.m-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#f1f5f9}
.m-card-body{padding:10px 12px 12px}
.m-card-body h3{margin:0 0 4px;font-size:14px;font-weight:600;color:#0f172a;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.m-card-body p{margin:0;font-size:12px;color:#64748b;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.m-about-card{
  display:block;background:#fff;border-radius:12px;overflow:hidden;
  box-shadow:0 1px 3px rgba(15,23,42,.08);
}
.m-about-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:#f1f5f9}
.m-about-excerpt{
  margin:0;padding:14px 16px 8px;font-size:14px;color:#64748b;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.m-about-more{display:block;padding:0 16px 14px;font-size:13px;color:#2563eb;font-weight:500}
.m-cta-bar{
  display:flex;gap:10px;padding:14px 16px;background:#fff;border-top:1px solid #e2e8f0;
  position:sticky;bottom:0;z-index:50;
}
.m-cta-bar a{
  flex:1;text-align:center;padding:12px;border-radius:10px;font-weight:600;font-size:15px;
}
.m-cta-call{background:#2563eb;color:#fff!important}
.m-cta-contact{background:#f1f5f9;color:#334155!important}
.m-banner img{width:100%;max-height:160px;object-fit:cover;display:block}
.m-page-head{padding:16px;background:#fff;border-bottom:1px solid #e2e8f0}
.m-page-head h1{margin:0;font-size:20px;font-weight:600;color:#0f172a}
.m-list .m-item{
  display:flex;gap:12px;padding:14px 16px;background:#fff;border-bottom:1px solid #f1f5f9;
}
.m-list .m-item img{width:88px;height:66px;object-fit:cover;border-radius:8px;flex-shrink:0;background:#f1f5f9}
.m-list .m-item-body{min-width:0;flex:1}
.m-list .m-item-body h3{margin:0 0 4px;font-size:15px;font-weight:600;line-height:1.35}
.m-list .m-item-body p{margin:0;font-size:13px;color:#64748b}
.m-list .m-item-body time{font-size:12px;color:#94a3b8}
.m-article{padding:16px;background:#fff}
.m-article h1{margin:0 0 12px;font-size:20px;line-height:1.35}
.m-article .meta{font-size:13px;color:#94a3b8;margin-bottom:16px}
.m-article .content{font-size:15px;line-height:1.75;color:#334155}
.m-article .content img{margin:12px auto;border-radius:8px}
.m-article .content p{margin:0 0 12px}
.m-footer{
  padding:20px 16px;background:#0f172a;color:#94a3b8;font-size:13px;text-align:center;
}
.m-footer p{margin:4px 0}
.m-footer a{color:#cbd5e1}
.m-empty{padding:40px 16px;text-align:center;color:#94a3b8}