:root{--bg:#07142a;--panel:#0b1d3a;--line:#1d3a66;--ink:#eaf4ff;--muted:#86a3c9;--cyan:#6fd3ff;--accent:#ff9a3c;--iface:#f2b705}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 "IBM Plex Sans Condensed","DejaVu Sans",system-ui,sans-serif}
a{color:var(--cyan)}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 18px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,#0a1a33,#0c2244);flex-wrap:wrap}
.kicker{display:block;font-size:11px;letter-spacing:.14em;color:var(--muted)}
h1{margin:0;font-size:20px;letter-spacing:.04em}
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tabs a{font:inherit;font-size:14px;color:var(--ink);background:#0e2547;border:1px solid var(--line);border-radius:6px;padding:7px 12px;text-decoration:none}
.tabs a:hover{border-color:var(--cyan)}
.tabs a.on{background:#14386b;border-color:var(--cyan);box-shadow:inset 0 0 0 1px var(--cyan)}
main{max-width:1500px;margin:0 auto;padding:22px 18px 40px}
.intro{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:start;margin-bottom:20px}
.intro p{margin:0 0 8px;color:var(--muted);max-width:900px}
.intro b{color:var(--ink)}
.badge{display:inline-block;border:1px solid var(--cyan);color:var(--cyan);border-radius:5px;padding:1px 7px;font-size:12px}
.flow{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 22px;font-family:"IBM Plex Mono","DejaVu Sans Mono",monospace;font-size:13px}
.flow a{color:var(--ink);text-decoration:none;border:1px solid var(--line);background:#0e2547;border-radius:5px;padding:3px 9px}
.flow a:hover{border-color:var(--iface)}
.flow span{color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(420px,1fr));gap:18px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}
.step header{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line)}
.num{width:28px;height:28px;border-radius:50%;background:var(--iface);color:#0a1220;font-weight:700;display:grid;place-items:center;flex:none}
.step h2{margin:0;font-size:17px;flex:1}
.step img{display:block;width:100%;height:auto;background:#0a1220;cursor:zoom-in}
.step .body{padding:10px 14px 14px;display:flex;flex-direction:column;gap:8px}
.step p{margin:0;color:#c8d6ea;font-size:14px}
.step code{font-family:"IBM Plex Mono","DejaVu Sans Mono",monospace;font-size:12.5px;color:var(--cyan)}
.art{display:flex;flex-wrap:wrap;gap:6px}
.art a{color:var(--accent);font-size:12.5px;text-decoration:none;border:1px solid #5a3a1c;border-radius:4px;padding:2px 7px}
.art a:hover{border-color:var(--accent)}
.sheet{margin-top:26px}
.sheet img{width:100%;border:1px solid var(--line);border-radius:8px}
footer{color:var(--muted);font-size:12.5px;margin-top:18px}
dialog{border:1px solid var(--line);background:#050d1c;padding:8px;border-radius:8px;max-width:96vw}
dialog img{max-width:92vw;max-height:88vh;display:block}
dialog::backdrop{background:rgba(3,8,18,.85)}
@media (max-width:700px){.grid{grid-template-columns:1fr}.intro{grid-template-columns:1fr}}