:root{
  --bg:#0a1530; --bg2:#0b1b34;
  --card:rgba(255,255,255,.06); --stroke:rgba(255,255,255,.12);
  --text:#eaf0ff; --muted:#9fb2d6; --accent:#4da6ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,var(--bg),var(--bg2));color:var(--text);
  -webkit-text-size-adjust:100%;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
a{color:#9fd0ff;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:18px 16px}
.header{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:36px;height:36px;border-radius:10px}
.brand .title{font-weight:800;letter-spacing:.3px;color:#fff;font-size:16px}
.nav a{margin-left:12px;color:#cfe3ff;font-size:13px}
.nav a:hover{color:#fff}
.hero{position:relative;margin-top:12px;border-radius:14px;overflow:hidden}
.hero img{width:100%;height:auto;display:block;filter:brightness(.9)}
.hero .inner{position:absolute;inset:0;padding:20px;display:flex;flex-direction:column;justify-content:center;max-width:760px}
.hero h1{margin:0 0 6px 0;font-size:24px;line-height:1.25}
.hero p{margin:0 0 10px 0;color:var(--muted);font-size:14px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 10px;border-radius:10px;font-weight:700;white-space:nowrap;font-size:12px}
.btn.primary{background:var(--accent);color:#062244}
.btn.outline{border:1px solid var(--accent); color:#cfe3ff}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}
.section{margin-top:16px}
.card{background:var(--card);border:1px solid var(--stroke);padding:12px;border-radius:12px}
.kv{display:flex;gap:10px;align-items:center;justify-content:space-between;background:rgba(255,255,255,.05);
    padding:8px;border-radius:10px;margin:6px 0;font-size:14px}
.contract{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}
code.addr{background:rgba(255,255,255,.12);padding:6px 8px;border-radius:8px;font-size:12px}
.copy-btn{cursor:pointer;background:transparent;border:1px solid rgba(255,255,255,.5);color:#cfe3ff;padding:6px 10px;border-radius:8px;font-size:12px}
ol,ul{padding-left:18px}
.note{font-size:12px;color:var(--muted)}
.footer{opacity:.75;text-align:center;margin:16px 0;font-size:12px}
/* Compact App section */
.app-steps li{margin:4px 0;font-size:14px;line-height:1.5}
hr.sep{border:0;border-top:1px solid var(--stroke);margin:10px 0}
@media (min-width:900px){
  .hero .inner{padding:28px}
  .hero h1{font-size:34px}
  .hero p{font-size:15px}
  .btn{font-size:13px;padding:8px 12px}
}