:root{
  --bg:#0b0b0b;
  --fg:#ffffff;
  --muted:#b5b5b5;
  --accent:#9fe870;
  --card:#141414;
  --line:rgba(255,255,255,.08);
  --radius:16px;
  --shadow:0 10px 24px rgba(0,0,0,.22);
}

*{ box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body{ height:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:clamp(15px,2.4vw,18px);
  line-height:1.7;
  padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

a{
  color:var(--accent);
  text-decoration:none;
}

a:hover{
  text-decoration:underline;
}

.container{
  max-width:820px;
  margin:0 auto;
  padding:20px 16px 40px;
}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow);
}

.hero{
  padding:24px 18px;
  text-align:center;
}

.section{
  margin-top:16px;
  padding:22px 18px;
}

.eyebrow{
  margin:0 0 8px;
  color:var(--accent);
  font-weight:700;
  letter-spacing:.5px;
}

h1{
  margin:4px 0 10px;
  font-size:clamp(26px,6vw,38px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:.3px;
}

h2{
  margin:0 0 12px;
  font-size:clamp(21px,4.5vw,28px);
  line-height:1.35;
}

h3{
  margin:0 0 6px;
  font-size:18px;
}

.lead{
  margin:8px auto 10px;
  max-width:720px;
  font-size:clamp(16px,2.8vw,20px);
  opacity:.98;
}

.sub{
  margin:0 auto;
  max-width:700px;
  color:var(--muted);
}

.small{
  font-size:14px;
}

.muted{
  color:var(--muted);
}

.cta{
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:center;
  margin:18px 0 4px;
}

@media (min-width: 720px){
  .cta{
    flex-direction:row;
    justify-content:center;
    flex-wrap:wrap;
  }
}

.btn{
  display:inline-block;
  min-width:260px;
  width:min(340px,92vw);
  padding:13px 18px;
  border-radius:16px;
  background:var(--accent);
  color:#0b0b0b;
  font-weight:800;
  text-align:center;
  box-shadow:0 8px 18px rgba(0,0,0,.18);
  transition:transform .06s ease, opacity .2s ease;
}

.btn:hover{
  text-decoration:none;
  opacity:.96;
}

.btn:active{
  transform:scale(.98);
}

.btn.outline{
  background:transparent;
  color:var(--accent);
  border:1.5px solid var(--accent);
  box-shadow:none;
}

.faq-list{
  display:grid;
  gap:14px;
}

.faq-item{
  padding:14px;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.02);
}

.link-list{
  margin:0;
  padding-left:20px;
}

.link-list li{
  margin:8px 0;
}

.notice{
  margin:14px 0 0;
  padding:12px 14px;
  border-radius:14px;
  background:rgba(159,232,112,.08);
  border:1px solid rgba(159,232,112,.18);
  color:#eaf8df;
}

.progress-box{
  margin-top:18px;
}

#progress{
  margin:8px auto 0;
  max-width:680px;
  text-align:center;
}

.list{
  list-style:none;
  padding:0;
  margin:12px 0 0;
}

.list li,
.list a{
  display:block;
  margin:8px auto;
  width:min(420px,92vw);
  padding:12px 16px;
  border-radius:16px;
  background:#111;
  color:var(--accent);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
  text-align:center;
}

.help{
  margin-top:14px;
  padding:14px;
  border:1px solid var(--line);
  border-radius:16px;
  background:rgba(255,255,255,.03);
}

.help summary{
  cursor:pointer;
  font-weight:700;
}

@media (prefers-reduced-motion: reduce){
  .btn{ transition:none; }
}