:root{
  --bg:#f3f4f6;
  --ink:#111827;
  --mute:#4b5563;
  --red:#e11d2e;
  --blue:#2563eb;
  --line:#d1d5db;
  --max:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);
  font:16px/1.7 "Microsoft YaHei","Segoe UI",sans-serif;
  background:
    linear-gradient(#fff,#f3f4f6);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
nav{
  position:sticky;top:0;z-index:20;height:74px;
  background:#fff;border-bottom:8px solid var(--red);
}
.nav,.hero-grid,.split,.visual,.faq-layout,.help-layout,.cta-in,.footer{display:grid;gap:28px;align-items:center}
.nav{height:74px;grid-template-columns:auto 1fr auto}
.brand{display:flex;align-items:center;gap:8px;font-weight:900}
.brand b{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:var(--red);color:#fff;font-size:12px;
}
.links{display:flex;justify-content:center;gap:24px;font-size:14px}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;font-weight:800;color:#fff;
  background:var(--blue);border:0;border-radius:999px;
}
.button.ghost{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.hero{padding:32px 0 60px}
.hero-grid{grid-template-columns:1.05fr .95fr;min-height:520px}
.eyebrow{color:var(--red);font-size:12px;font-weight:800;letter-spacing:2px}
h1,h2{margin:10px 0 16px;line-height:1.16}
.hero h1{font-size:clamp(32px,5.2vw,56px)}
.hero h1 span{color:var(--blue)}
p,.lead{color:var(--mute)}
.actions,.micro{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.micro span{padding:6px 10px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:12px;font-weight:700}
.map{
  position:relative;padding:10px;background:#fff;border:1px solid var(--line);
}
.map:before{
  content:"";position:absolute;left:22px;top:18px;bottom:18px;width:8px;
  background:linear-gradient(var(--red),var(--blue));border-radius:8px;
}
.map img,.shot img,.visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.stops{
  display:flex;justify-content:space-between;gap:8px;margin-top:10px;font-size:12px;font-weight:800;
}
.stops span{display:flex;align-items:center;gap:6px}
.stops span:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--red);border:2px solid #fff;box-shadow:0 0 0 2px var(--red)}
.stops span:nth-child(2):before{background:var(--blue);box-shadow:0 0 0 2px var(--blue)}
.stops span:nth-child(3):before{background:#16a34a;box-shadow:0 0 0 2px #16a34a}
.section{padding:74px 0}
.head{max-width:720px;margin-bottom:28px}
.head h2,h2{font-size:clamp(26px,4vw,42px)}
.grid6,.review-grid,.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.card,.review,.download-card,.article,.scene{
  padding:20px;background:#fff;border:1px solid var(--line);
}
.card{border-left:8px solid var(--red)}
.card:nth-child(2){border-left-color:var(--blue)}
.card:nth-child(3){border-left-color:#ca8a04}
.card:nth-child(4){border-left-color:#16a34a}
.card:nth-child(5){border-left-color:#7c3aed}
.card:nth-child(6){border-left-color:#0f766e}
.icon{font-size:12px;font-weight:800;letter-spacing:1px;color:var(--mute)}
.card h3{margin:12px 0 8px}
.split,.visual,.faq-layout{grid-template-columns:1fr 1fr;gap:36px}
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 24px}
.scene b{display:block;color:var(--red);font-size:12px}
.visual{gap:0;border:1px solid var(--line);background:#fff}
.visual img{aspect-ratio:16/11}
.visual-copy{padding:42px 34px}
.metrics{display:flex;gap:24px;margin:20px 0 26px}
.metrics b{display:block;color:var(--blue);font-size:28px}
.person{display:flex;gap:10px;align-items:center;margin-top:14px}
.avatar{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:var(--red);color:#fff;font-weight:800;
}
.person small{display:block;color:var(--mute)}
.faq-layout{grid-template-columns:.8fr 1.2fr}
details{border-bottom:1px solid var(--line)}
summary{padding:16px 6px;font-weight:800;cursor:pointer;list-style:none}
.cta{padding:8px 0 68px}
.cta-in{grid-template-columns:1fr auto;padding:24px;background:var(--red);color:#fff;border-radius:18px}
.cta-in p{color:rgba(255,255,255,.9)}
.cta-in .button{background:#fff;color:var(--red)}
.page-head{padding:70px 0 16px}
.help-layout{grid-template-columns:220px 1fr;align-items:start}
.side{padding:14px}
.side a{display:block;padding:8px 6px;color:var(--mute)}
.policy{margin-top:16px;padding:16px;border:1px solid var(--line)}
.shot{margin:20px 0}
footer{padding:44px 0 16px;background:#111827;color:#fff}
.footer{grid-template-columns:1.4fr repeat(3,1fr);align-items:start}
.footer a,.footer p,.copy{color:#cbd5e1}
.footer a{display:block;margin:8px 0}
.copy{margin-top:24px;padding-top:12px;border-top:1px solid #334155}
@media(max-width:860px){
  .links{display:none}
  .hero-grid,.split,.visual,.faq-layout,.help-layout,.cta-in,.footer{grid-template-columns:1fr}
  .grid6,.review-grid,.cards,.scene-grid{grid-template-columns:1fr 1fr}
  .visual-copy{padding:28px}
}
@media(max-width:560px){.grid6,.review-grid,.cards,.scene-grid,.footer{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}