:root{--bg:#0f172a;--card:#1e293b;--card2:#273449;--fg:#e2e8f0;--muted:#94a3b8;--accent:#38bdf8;--ok:#22c55e;--warn:#f59e0b;--bad:#ef4444;--r:14px}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.5 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-text-size-adjust:100%}
body{min-height:100vh;min-height:100dvh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
#app{max-width:34rem;margin:0 auto;padding:1rem 1rem 3rem}
header.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.25rem}
.brand{font-weight:700;font-size:1.1rem;letter-spacing:.02em}
button,.btn{font:inherit;border:0;border-radius:12px;padding:.8rem 1.1rem;cursor:pointer;background:var(--card2);color:var(--fg);min-height:44px;-webkit-tap-highlight-color:transparent}
button:disabled{opacity:.5;cursor:not-allowed}
button.primary{background:var(--accent);color:#06283d;font-weight:700}
button.danger{background:var(--bad);color:#fff;font-weight:700}
button.ghost{background:transparent;border:1px solid #475569}
button.small{padding:.35rem .7rem;min-height:36px;font-size:.9rem}
.big{font-size:1.1rem;padding:1rem 1.4rem;width:100%}
h1{font-size:1.6rem;line-height:1.25;margin:.5rem 0}
h2{font-size:1.25rem;margin:.25rem 0 .5rem}
p{margin:.5rem 0}
.muted{color:var(--muted);font-size:.9rem}
.card{background:var(--card);border-radius:var(--r);padding:1rem;margin:1rem 0}
.banner{border-radius:var(--r);padding:.8rem 1rem;margin:.75rem 0;border:1px solid}
.banner.warn{background:#3a2a0a;border-color:var(--warn)}
.banner.bad{background:#3b1212;border-color:var(--bad)}
.banner.ok{background:#0e2e1a;border-color:var(--ok)}
.banner.info{background:#0c2a3d;border-color:var(--accent)}
.row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.row>*{flex:0 0 auto}
.grow{flex:1 1 auto!important}
input[type=text],input[readonly]{width:100%;font:inherit;padding:.7rem .8rem;border-radius:10px;border:1px solid #475569;background:#0b1220;color:var(--fg);min-height:44px;font-size:.85rem}
input[type=range]{width:100%;min-height:32px}
details{margin:1rem 0}
summary{cursor:pointer;color:var(--muted);padding:.4rem 0}
label.chk{display:flex;gap:.6rem;align-items:flex-start;margin:.5rem 0;font-size:.92rem}
label.chk input{margin-top:.25rem;width:1.1rem;height:1.1rem}
.sas{font-size:3rem;letter-spacing:.35em;font-weight:800;text-align:center;font-variant-numeric:tabular-nums;padding:.4rem 0 .4rem .35em}
.badge{display:inline-block;padding:.25rem .7rem;border-radius:99px;font-size:.88rem;font-weight:600}
.badge.ok{background:#0e2e1a;color:#86efac;border:1px solid var(--ok)}
.badge.warn{background:#3a2a0a;color:#fcd34d;border:1px solid var(--warn)}
.badge.bad{background:#3b1212;color:#fca5a5;border:1px solid var(--bad)}
.status{font-size:1.15rem;font-weight:600}
.dot{display:inline-block;width:.7rem;height:.7rem;border-radius:50%;margin-right:.45rem;background:var(--muted)}
.dot.good{background:var(--ok)}.dot.fair{background:var(--warn)}.dot.poor{background:var(--bad)}
.meter{height:8px;background:#0b1220;border-radius:6px;overflow:hidden}
.meter>i{display:block;height:100%;width:0;background:var(--accent);transition:width .15s}
.kv{display:grid;grid-template-columns:7.5rem 1fr;gap:.35rem .6rem;align-items:center;font-size:.92rem}
.ctrl{display:flex;gap:.8rem;margin-top:1rem}
.ctrl button{flex:1;font-size:1.05rem;padding:1rem}
.qr{display:block;margin:.8rem auto;background:#fff;padding:10px;border-radius:12px;width:min(260px,70vw);image-rendering:pixelated}
.hidden{display:none!important}
footer{margin-top:2rem;color:var(--muted);font-size:.8rem}
a{color:var(--accent)}
table.chk{width:100%;border-collapse:collapse;font-size:.92rem}
table.chk td,table.chk th{padding:.4rem .3rem;border-bottom:1px solid #334155;text-align:left;vertical-align:top;word-break:break-word}
.pass{color:#86efac}.failc{color:#fca5a5}.na{color:#fcd34d}
pre.out{background:#0b1220;padding:.8rem;border-radius:10px;overflow:auto;font-size:.78rem;max-height:18rem}
@media (min-width:640px){h1{font-size:2rem}}
.mt1{margin-top:.6rem}.mt2{margin-top:1rem}.my1{margin:.5rem 0}
.offscreen{position:fixed;opacity:0;left:-9999px}