:root{
  --bg:#f6f8fa; --card:#fff; --ink:#0f172a; --ink2:#334155; --mute:#64748b;
  --line:#e2e8f0; --brand:#0f766e; --brand-dark:#115e59; --brand2:#1d4ed8;
  --ok:#059669; --warn:#d97706; --bad:#dc2626; --soft:#f1f5f9;
  --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
main.wrap{padding-top:26px;padding-bottom:64px}

/* ---------- header ---------- */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top .bar{max-width:1120px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.logo{font-weight:800;font-size:17px;letter-spacing:-.3px;color:var(--ink);display:flex;align-items:center;gap:8px}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--brand)}
.logo small{display:block;font-weight:500;font-size:11.5px;color:var(--mute);letter-spacing:0}
.nav{margin-left:auto;display:flex;gap:18px;font-size:14px;flex-wrap:wrap}
.nav a{color:var(--ink2)}
.burger{display:none;margin-left:auto;background:var(--soft);border:none;border-radius:8px;padding:6px 12px;font-size:14px;cursor:pointer}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,#0f766e 0%,#115e59 55%,#134e4a 100%);color:#fff;padding:44px 0 38px;margin-bottom:26px}
.hero h1{font-size:31px;margin:10px 0 10px;letter-spacing:-.5px;line-height:1.35}
.hero p{margin:0;color:#ccfbf1;font-size:15px;max-width:760px}
.hero .eyebrow{font-size:12px;letter-spacing:.2em;color:#5eead4;font-weight:700}
.hero .stats{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.hero .stat{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:12px 20px;min-width:104px}
.hero .stat b{display:block;font-size:26px;letter-spacing:-1px;line-height:1.2}
.hero .stat span{font-size:12.5px;color:#ccfbf1}

/* ---------- generic ---------- */
h2{font-size:21px;margin:36px 0 14px;padding-left:11px;border-left:4px solid var(--brand)}
h3{font-size:16.5px;margin:24px 0 10px;color:var(--ink2)}
.sub{color:var(--mute);font-size:14px;margin:6px 0 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;margin:14px 0;
  box-shadow:0 1px 3px rgba(15,23,42,.05)}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.g4,.g3,.g2{grid-template-columns:1fr}}
table{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--card);
  border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:12px 0}
th{background:var(--soft);text-align:left;padding:10px 12px;font-weight:700;color:var(--ink2);border-bottom:1px solid var(--line)}
td{padding:9px 12px;border-bottom:1px solid #f1f5f9;vertical-align:top}
tr:last-child td{border-bottom:none}
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:700;white-space:nowrap}
.b-ok{background:#d1fae5;color:#065f46}
.b-warn{background:#fef3c7;color:#92400e}
.b-new{background:#dbeafe;color:#1e40af}
.b-gray{background:#e2e8f0;color:#334155}
code{background:var(--soft);padding:1px 6px;border-radius:4px;font-size:12.5px;
  font-family:"SFMono-Regular",Consolas,monospace;color:#0f172a}
pre{background:#0f172a;color:#e2e8f0;padding:14px 16px;border-radius:9px;overflow-x:auto;
  font-size:12.8px;line-height:1.65;font-family:"SFMono-Regular",Consolas,monospace;margin:12px 0;white-space:pre-wrap}
ul{margin:8px 0;padding-left:20px} li{margin:5px 0}
.note{border-left:3px solid var(--brand2);background:#eff6ff;padding:11px 15px;border-radius:0 8px 8px 0;font-size:13.5px;margin:12px 0}
.risk{border-left:3px solid var(--bad);background:#fef2f2;padding:11px 15px;border-radius:0 8px 8px 0;font-size:13.5px;margin:12px 0}
.good{border-left:3px solid var(--ok);background:#f0fdf4;padding:11px 15px;border-radius:0 8px 8px 0;font-size:13.5px;margin:12px 0}
.kv{display:flex;gap:8px;font-size:13.5px;padding:5px 0;border-bottom:1px dashed var(--line)}
.kv:last-child{border:none}
.kv .k{color:var(--mute);min-width:104px;flex:none}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--mute);margin:14px 0 6px}
.crumb a{color:var(--mute)}

/* ---------- pillar tags ---------- */
.ptag{display:inline-block;font-size:11.5px;font-weight:700;padding:1px 8px;border-radius:5px;color:#fff}

/* ---------- skill cards ---------- */
.skillgrid{display:grid;gap:13px;grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.skillgrid{grid-template-columns:1fr}}
.sk{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:15px 16px;
  display:flex;flex-direction:column;gap:7px;transition:box-shadow .15s,border-color .15s}
.sk:hover{border-color:var(--brand);box-shadow:0 4px 14px rgba(15,118,110,.10);text-decoration:none}
.sk h4{margin:0;font-size:14.5px;color:var(--ink);font-weight:700}
.sk p{margin:0;font-size:12.8px;color:var(--mute);line-height:1.55;flex:1}
.sk .meta{display:flex;gap:6px;align-items:center;flex-wrap:wrap;font-size:11.5px;color:var(--mute)}

/* ---------- scene page ---------- */
.scenetop{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin:8px 0 18px}
.scenetop h1{font-size:26px;margin:6px 0 8px;letter-spacing:-.4px}
.scenetop .lede{color:var(--ink2);font-size:14.5px;margin:0}
.bigno{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--brand)}
ol.steps{margin:8px 0;padding-left:22px;counter-reset:s}
ol.steps li{margin:9px 0;padding-left:6px}
ol.steps li::marker{color:var(--brand);font-weight:700}
.promptbox{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius);padding:16px 18px;margin:12px 0}
.promptbox .lbl{font-size:12px;font-weight:800;letter-spacing:.08em;color:#92400e;margin-bottom:8px}
.checklist{list-style:none;padding:0;margin:8px 0}
.checklist li{padding-left:26px;position:relative;margin:7px 0;font-size:13.8px}
.checklist li::before{content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border:2px solid var(--brand);border-radius:3px}
.related{border-top:1px dashed var(--line);margin-top:16px;padding-top:14px;font-size:13.5px;color:var(--mute)}
.pill{display:inline-block;background:var(--soft);border:1px solid var(--line);border-radius:20px;padding:3px 12px;margin:0 6px 6px 0;font-size:12px;color:var(--ink2)}

/* ---------- skill detail ---------- */
.sd{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 26px 26px;margin:10px 0}
.sd h1{font-size:25px;margin:14px 0 6px;letter-spacing:-.4px}
.sd .sum{color:var(--ink2);font-size:14.5px}
.fourth{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.fourth{grid-template-columns:1fr}}
.fourth div{background:var(--card);border:1px dashed var(--line);border-radius:10px;padding:12px 14px;font-size:13px}
.fourth div b{display:block;color:var(--brand-dark);font-size:13px;margin-bottom:3px}

/* ---------- index list ---------- */
.rowlist{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:14px 0}
.rowlist .rh{background:var(--soft);padding:11px 16px;font-weight:700;font-size:14.5px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px}
.rowlist table{margin:0;border:none;border-radius:0}
.rowlist td:first-child{width:44px;color:var(--mute);text-align:center;font-weight:700}

/* ---------- status banner ---------- */
.statusbar{background:#fff;border:1px solid #fde68a;border-left:4px solid var(--warn);border-radius:8px;
  padding:12px 16px;font-size:13.5px;color:#78350f;margin:14px 0}
.statusbar b{color:#92400e}

/* ---------- footer ---------- */
footer{background:#fff;border-top:1px solid var(--line);color:var(--mute);font-size:12.5px;padding:22px 0;margin-top:40px}
footer .fl{max-width:1080px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media(max-width:720px){
  .top .nav{display:none;width:100%;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:10px;margin-left:0}
  .top .nav.open{display:flex}
  .burger{display:block}
  .hero h1{font-size:23px}
  .scenetop h1{font-size:21px}
}