:root{
    --navy:#0a1f33; --navy2:#12294d;
    --green:#2f9e44; --green-d:#1e6b2e; --green-l:#e8f5e9;
    --bg:#f3f6f1; --card:#ffffff; --text:#1c2733; --muted:#5d6b7a;
    --border:#dfe7de; --radius:16px;
  }
  *{box-sizing:border-box; -webkit-tap-highlight-color:transparent;}
  body{margin:0; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; background:var(--bg); color:var(--text); line-height:1.5;}
  .site-header{background:var(--navy); color:#fff; padding:12px 16px; display:flex; align-items:center; justify-content:space-between; position:sticky; top:0; z-index:10;}
  .site-header a.back{color:#fff; text-decoration:none; font-weight:600; font-size:15px;}
  .site-header a.back:hover{text-decoration:underline;}
  .brand{font-weight:800; letter-spacing:.3px;}
  .wrap{max-width:640px; margin:0 auto; padding:16px 16px 32px;}
  .hero{background:linear-gradient(135deg,var(--green-d),var(--green)); color:#fff; border-radius:var(--radius); padding:28px 22px; margin-bottom:16px; text-align:center;}
  .hero h1{margin:0 0 6px; font-size:30px;}
  .hero p{margin:0; opacity:.92; font-size:15px;}
  .card{background:var(--card); border-radius:var(--radius); padding:20px; margin-bottom:16px; box-shadow:0 2px 10px rgba(10,31,51,.06); border:1px solid var(--border);}
  .card h2{margin:0 0 12px; font-size:20px;}
  .card h3{margin:18px 0 8px; font-size:16px;}
  .card p{margin:0 0 10px; font-size:15px;}
  .dir{display:block; background:#fbfdfb; border:2px solid var(--border); border-radius:12px; padding:14px; margin-bottom:10px; text-decoration:none; color:var(--text);}
  .dir:hover{border-color:var(--green);}
  .dir strong{display:block; font-size:16px; color:var(--green-d); margin-bottom:4px;}
  .dir span{font-size:14px; color:var(--muted);}
  .academy{display:flex; justify-content:space-between; align-items:baseline; gap:10px; padding:12px 2px; border-bottom:1px solid var(--border);}
  .academy:last-child{border-bottom:none;}
  .academy .aname{font-weight:700; font-size:15px;}
  .academy .aname a{color:var(--green-d); text-decoration:none;}
  .academy .aname a:hover{text-decoration:underline;}
  .academy .aloc{font-size:13px; color:var(--muted); white-space:nowrap;}
  .academy .anote{font-size:13px; color:var(--muted); margin:2px 0 0;}
  .q{font-weight:700; margin:14px 0 4px; font-size:15px;}
  .q:first-of-type{margin-top:4px;}
  .a{font-size:14px; color:#33424f; margin:0 0 4px;}
  .flag{background:#fff1f0; border-left:4px solid #b3261e; padding:10px 14px; border-radius:0 10px 10px 0; margin:10px 0; font-size:14px;}
  .stage{margin:0 0 8px; font-size:14px;}
  .stage strong{color:var(--green-d);}
  .read{background:#fffbe6; border-left:4px solid #f0b429; padding:12px 14px; border-radius:0 10px 10px 0; margin:14px 0 4px; font-size:14px;}
  .wall{background:var(--green-l); border-radius:12px; padding:14px; margin-top:14px; font-size:14px;}
  .wall strong{display:block; margin-bottom:4px; color:var(--green-d);}
  footer{text-align:center; color:var(--muted); font-size:13px; padding:8px 20px 28px; max-width:640px; margin:0 auto;}
  footer .tools{margin-bottom:10px;}
  footer .tools a{color:var(--green-d); font-weight:700; text-decoration:none; margin:0 8px;}
  .ug-install{display:flex;align-items:center;gap:12px;background:var(--navy);color:#fff;padding:10px 14px;font-size:14px}
  .ug-install[hidden]{display:none}
  .ug-install-text{flex:1}
  .ug-install-btn{background:var(--green);color:#fff;border:0;border-radius:10px;padding:8px 14px;font-weight:700;cursor:pointer;white-space:nowrap}
  .ug-install-x{background:none;border:0;color:#fff;font-size:22px;cursor:pointer;line-height:1;padding:4px}