:root{
  --bg:#f3f6fb;
  --ink:#172033;
  --mute:#5b6780;
  --line:#d7deea;
  --blue:#2f6fed;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);
  font:16px/1.7 "Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(circle at 88% 8%,rgba(47,111,237,.12),transparent 28%),
    var(--bg);
}
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:rgba(243,246,251,.94);border-bottom:1px solid var(--line);
}
.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:800}
.brand b{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:var(--blue);color:#fff;font-size:11px}
.links{display:flex;justify-content:center;gap:22px;font-size:14px;color:var(--mute)}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 18px;border-radius:999px;font-weight:700;color:#fff;background:var(--blue);border:0;
}
.button.ghost{background:#fff;color:var(--blue);border:1px solid #c9d7f5}
.hero{padding:32px 0 64px}
.hero-grid{grid-template-columns:1fr 1fr;min-height:540px}
.eyebrow{color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1.6px}
h1,h2{margin:10px 0 16px;line-height:1.18;font-weight:800}
.hero h1{font-size:clamp(32px,5vw,52px)}
.hero h1 span{color:var(--blue)}
p,.lead{color:var(--mute)}
.actions,.micro{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.micro span{padding:5px 10px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:12px}
.wall{
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
  padding:10px;background:#fff;border:1px solid var(--line);border-radius:28px;
}
.tile{
  position:relative;min-height:86px;border-radius:18px;display:grid;place-items:center;
  font-weight:800;color:#fff;overflow:hidden;
}
.tile small{position:absolute;right:8px;bottom:6px;font-size:16px}
.t1{background:#2f6fed}.t2{background:#ef6b4a}.t3{background:#1f9d8a}.t4{background:#7b61ff}
.t5{background:#f0b429;color:#172033}.t6{background:#334155}.t7{background:#db2777}.t8{background:#0ea5e9}
.shot,.visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:22px}
.section{padding:72px 0}
.head{max-width:740px;margin-bottom:26px}
.head h2,h2{font-size:clamp(26px,4vw,40px)}
.grid6,.review-grid,.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.card,.review,.download-card,.article,.scene{
  padding:18px;background:#fff;border:1px solid var(--line);border-radius:20px;
}
.icon{font-size:13px}
.card h3{margin:10px 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:16px 0 22px}
.scene b{display:block;color:var(--blue);font-size:12px}
.visual{gap:0}
.visual img{border-radius:24px 0 0 24px;aspect-ratio:16/11}
.visual-copy{padding:40px 32px;background:#fff;border:1px solid var(--line);border-left:0;border-radius:0 24px 24px 0}
.metrics{display:flex;gap:24px;margin:18px 0 24px}
.metrics b{display:block;color:var(--blue);font-size:28px}
.person{display:flex;gap:10px;align-items:center;margin-top:12px}
.avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:#fff;font-weight:800;position:relative;
}
.avatar i{position:absolute;right:-4px;bottom:-2px;font-style:normal;font-size:14px}
.a1{background:#2f6fed}.a2{background:#ef6b4a}.a3{background:#1f9d8a}.a4{background:#7b61ff}.a5{background:#334155}.a6{background:#db2777}
.person small{display:block;color:var(--mute)}
.review{position:relative}
.flag{position:absolute;top:14px;right:14px;font-size:18px}
.faq-layout{grid-template-columns:.8fr 1.2fr}
details{border-bottom:1px solid var(--line)}
summary{padding:15px 6px;font-weight:800;cursor:pointer;list-style:none}
.cta{padding:8px 0 70px}
.cta-in{grid-template-columns:1fr auto;padding:24px;background:#fff;border:1px solid var(--line);border-radius:24px}
.page-head{padding:68px 0 14px}
.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);border-radius:16px}
.shot{margin:18px 0}
.mini-wall{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 8px}
.chip{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 10px 6px 6px;font-size:13px}
.dot{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:11px;font-weight:800}
footer{padding:44px 0 14px;background:#172033;color:#fff}
.footer{grid-template-columns:1.4fr repeat(3,1fr);align-items:start}
.footer a,.footer p,.copy{color:#c5cede}
.footer a{display:block;margin:8px 0}
.copy{margin-top:22px;padding-top:12px;border-top:1px solid rgba(255,255,255,.12)}
@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,.wall{grid-template-columns:1fr 1fr}
  .visual img,.visual-copy{border-radius:20px}
  .visual-copy{border:1px solid var(--line)}
}
@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}}