:root{
  --bg:#f4f6fb; --bg2:#eef2ff; --card:#fff; --ink:#0f172a; --ink2:#334155;
  --muted:#64748b; --line:#e6ebf3; --line2:#eef2f9;
  --pri:#4f46e5; --pri2:#7c3aed; --pri-soft:#eef2ff;
  --ok:#059669; --ok-soft:#ecfdf5; --warn:#d97706; --warn-soft:#fffbeb;
  --danger:#dc2626; --danger-soft:#fef2f2;
  --shadow:0 18px 48px rgba(30,41,59,.08), 0 2px 8px rgba(30,41,59,.04);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b1220; --bg2:#0e1730; --card:#111a2e; --ink:#e8eefb; --ink2:#c7d2e5;
    --muted:#8b9ab3; --line:#1e2b45; --line2:#18233a;
    --pri:#818cf8; --pri2:#a78bfa; --pri-soft:#1a2440;
    --ok:#34d399; --ok-soft:#10241d; --warn:#fbbf24; --warn-soft:#2a2110;
    --danger:#f87171; --danger-soft:#2a1414;
    --shadow:0 18px 48px rgba(0,0,0,.45);
  }
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100vh;padding:0 16px 40px;color:var(--ink);
  background:
    radial-gradient(900px 420px at 8% -8%, var(--bg2) 0%, transparent 60%),
    radial-gradient(700px 380px at 98% 4%, rgba(124,58,237,.10) 0%, transparent 62%),
    var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:720px;margin:0 auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.topbar{display:flex;align-items:center;gap:12px;padding:22px 4px 14px}
.mark{width:44px;height:44px;border-radius:14px;flex:0 0 auto;background:linear-gradient(135deg,var(--pri),var(--pri2));
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(79,70,229,.3)}
.mark svg{display:block}
.titles{flex:1;min-width:0}
.titles h1{font-size:19px;margin:0;letter-spacing:.3px;line-height:1.25}
.titles p{margin:2px 0 0;font-size:12px;color:var(--muted)}
.badge{font-size:11px;font-weight:700;color:var(--ok);background:var(--ok-soft);
  border:1px solid rgba(5,150,105,.22);padding:5px 9px;border-radius:999px;white-space:nowrap}
.badge.off{color:var(--danger);background:var(--danger-soft);border-color:rgba(220,38,38,.22)}
@media (prefers-color-scheme: dark){.badge{border-color:rgba(52,211,153,.25)}}

.card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.card h2{font-size:13px;margin:0 0 12px;color:var(--ink2);font-weight:700;display:flex;align-items:center;gap:8px}
.card h2 .step{width:20px;height:20px;border-radius:7px;background:var(--pri-soft);color:var(--pri);
  font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:800}

textarea{width:100%;background:var(--card);color:var(--ink);border:1.5px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:14px;outline:none;transition:border-color .18s,box-shadow .18s;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC",monospace;
  resize:vertical;min-height:88px;line-height:1.65;word-break:break-all}
textarea:focus{border-color:var(--pri);box-shadow:0 0 0 4px rgba(79,70,229,.1)}
textarea::placeholder{color:var(--muted);opacity:.75}

.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.btn{appearance:none;border:1.5px solid var(--line);background:var(--card);color:var(--ink2);
  padding:10px 14px;border-radius:12px;font-size:13px;font-weight:700;cursor:pointer;
  transition:transform .12s,box-shadow .18s,background .18s,border-color .18s;
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:var(--pri);color:var(--pri)}
.btn:active{transform:translateY(1px)}
.btn.primary{border:none;color:#fff;background:linear-gradient(135deg,var(--pri),var(--pri2));
  box-shadow:0 12px 26px rgba(79,70,229,.26)}
.btn.primary:hover{filter:brightness(1.04);color:#fff}
.btn.block{width:100%;justify-content:center;padding:14px;font-size:15px;border-radius:14px}
.btn.small{padding:7px 11px;font-size:12px;border-radius:10px}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

.chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.chip{font-size:11.5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--line2);color:var(--ink2);border:1px solid var(--line);padding:4px 9px;border-radius:8px;
  max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip b{font-weight:600;color:var(--muted);font-family:inherit;margin-right:4px}
.chip.ok{background:var(--ok-soft);color:var(--ok);border-color:rgba(5,150,105,.22)}
.chip.warn{background:var(--warn-soft);color:var(--warn);border-color:rgba(217,119,6,.25)}

.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;background:var(--line2);
  border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:12px}
.seg button{appearance:none;border:none;background:transparent;color:var(--muted);font-size:13px;font-weight:700;
  padding:9px 6px;border-radius:9px;cursor:pointer;transition:all .18s}
.seg button.on{background:var(--card);color:var(--pri);box-shadow:0 2px 8px rgba(30,41,59,.08)}

.hint{font-size:12px;color:var(--muted);margin:10px 0 0}
.result[hidden]{display:none}
.res-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
.game{font-size:18px;font-weight:800;letter-spacing:.2px}
.meta{font-size:12px;color:var(--muted);margin-top:3px;font-family:ui-monospace,Menlo,Consolas,monospace}
.pill{font-size:11.5px;color:var(--pri);background:var(--pri-soft);border:1px solid rgba(79,70,229,.18);
  padding:4px 10px;border-radius:999px;white-space:nowrap}

.acc-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:620px){.acc-grid{grid-template-columns:1fr}}
.acc{border:1px solid var(--line);border-radius:14px;padding:14px;background:var(--line2)}
.acc h3{margin:0 0 10px;font-size:13px;color:var(--ink2);display:flex;align-items:center;gap:7px}
.acc h3::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--pri)}
.acc:last-child h3::before{background:var(--ok)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:0;font-size:12.5px}
.kv dt{color:var(--muted);white-space:nowrap}
.kv dd{margin:0;font-weight:600;word-break:break-all;text-align:right}
.kv dd.good{color:var(--ok)}
.kv dd.bad{color:var(--danger)}
.kv dd.empty{grid-column:1 / -1;text-align:center;color:var(--muted);font-weight:400;padding:8px 0}

.scheme{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line)}
.scheme h3{margin:0 0 10px;font-size:13px;color:var(--ink2)}
.scheme textarea{min-height:92px;font-size:11.5px;background:var(--line2)}

details.notice{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:10px}
details.notice summary{cursor:pointer;padding:13px 16px;font-size:13px;font-weight:700;color:var(--ink2);
  list-style:none;display:flex;align-items:center;justify-content:space-between}
details.notice summary::-webkit-details-marker{display:none}
details.notice summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .2s}
details.notice[open] summary::after{transform:rotate(-135deg)}
.details-body{padding:0 16px 16px;font-size:13px;color:var(--ink2)}
.details-body ul{margin:8px 0;padding-left:18px}
.details-body li{margin:5px 0}

.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,14px);background:#0f172a;color:#fff;
  font-size:13px;font-weight:600;padding:11px 18px;border-radius:12px;opacity:0;pointer-events:none;
  transition:all .22s;z-index:99;max-width:88vw;text-align:center;box-shadow:0 16px 40px rgba(0,0,0,.28)}
@media (prefers-color-scheme: dark){.toast{background:#e2e8f0;color:#0f172a}}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{background:#b91c1c}
.toast.ok{background:#047857}

footer{text-align:center;color:var(--muted);font-size:11.5px;padding:18px 8px 0;line-height:1.9}