:root{
  --brand:#C8161D;
  --brand-dark:#9e1116;
  --ink:#1a1a1a;
  --muted:#6b7280;
  --line:#ececef;
  --bg:#ffffff;
  --bg-soft:#f7f8fa;
  --maxw:1080px;
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}
.brand .dot{width:12px;height:12px;border-radius:3px;background:var(--brand)}
.nav-links{display:flex;gap:22px;flex-wrap:wrap}
.nav-links a{color:var(--ink);font-size:14px;font-weight:600}
.nav-links a:hover{color:var(--brand);text-decoration:none}
/* hero */
.hero{background:linear-gradient(135deg,#fff 0%,#fdeced 100%);padding:64px 0 56px;border-bottom:1px solid var(--line)}
.hero h1{font-size:40px;line-height:1.2;letter-spacing:-.5px}
.hero .sub{margin-top:16px;font-size:18px;color:var(--muted);max-width:680px}
.cta{display:inline-block;margin-top:28px;background:var(--brand);color:#fff;padding:13px 26px;border-radius:999px;font-weight:700}
.cta:hover{background:var(--brand-dark);text-decoration:none}
/* sections */
section{padding:52px 0}
.section-soft{background:var(--bg-soft)}
h2{font-size:28px;margin-bottom:8px}
.lead{color:var(--muted);margin-bottom:28px;font-size:16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}
.card:hover{box-shadow:0 8px 26px rgba(0,0,0,.06);transform:translateY(-2px)}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
/* steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;position:relative}
.step::before{counter-increment:s;content:counter(s);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;margin-bottom:12px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{color:var(--muted);font-size:13.5px}
/* lists */
ul.clean{list-style:none;display:grid;gap:12px}
ul.clean li{padding-left:26px;position:relative}
ul.clean li::before{content:"●";color:var(--brand);position:absolute;left:0;font-size:12px;top:4px}
/* district chips */
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
.chip{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:9px 18px;color:var(--ink);font-weight:600;font-size:14px}
.chip:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
/* callout */
.callout{background:#fff;border-left:4px solid var(--brand);border-radius:10px;padding:20px 22px;margin-top:22px}
.callout h3{margin-bottom:8px}
/* footer */
.site-footer{background:#111;border-top:4px solid var(--brand);color:#c9ccd1;padding:40px 0;margin-top:20px}
.site-footer a{color:#e8eaed}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.site-footer h4{color:#fff;margin-bottom:14px;font-size:15px}
.site-footer p,.site-footer li{font-size:13.5px;color:#aab0b8;line-height:1.9}
.site-footer ul{list-style:none}
.tag{display:inline-block;background:#222;color:#c9ccd1;border-radius:6px;padding:3px 10px;font-size:12px;margin:3px 4px 3px 0}
.cr{margin-top:30px;padding-top:18px;border-top:1px solid #2a2a2a;font-size:12.5px;color:#7e858e}
/* responsive */
@media(max-width:860px){
  .grid,.grid-2,.steps,.site-footer .cols{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
}
@media(max-width:560px){
  .grid,.grid-2,.steps,.site-footer .cols{grid-template-columns:1fr}
  .nav-links{display:none}
  .hero{padding:44px 0}
}