:root{--k:#0b0b0b;--y:#fcb819;--line:#e3e3e3;--mut:#666;--red:#c62828;--redbg:#fdecea;--ybg:#fff6dc;--gbg:#f3f3f3;--ok:#1b7f3b}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--k);background:#fff}
.bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;height:52px;padding:0 16px;padding-top:env(safe-area-inset-top);background:var(--k)}
.bar img{display:block;height:24px;width:auto}
.tag{color:#fff;font-weight:800;font-size:12px;letter-spacing:.12em}
.icon{margin-left:auto;background:none;border:0;color:#fff;font-size:24px;width:44px;height:44px;cursor:pointer}
#nav{position:sticky;top:52px;z-index:4;background:var(--k);border-top:1px solid #333}
#nav a{display:block;padding:14px 16px;color:#fff;text-decoration:none;border-bottom:1px solid #222}
#nav b{background:var(--y);color:var(--k);border-radius:10px;padding:0 7px;font-size:13px}
#nav b:empty{display:none}
main{max-width:680px;margin:0 auto;padding:16px 16px 48px}
.off{opacity:.55}
h1{font-size:22px;margin:4px 0 12px;font-weight:800;text-transform:uppercase;letter-spacing:.02em}
h2{font-size:15px;margin:22px 0 8px;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
p{margin:8px 0}
.muted,.hint{color:var(--mut);font-size:14px}
a{color:inherit}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:56px;margin:8px 0;padding:10px 16px;border:2px solid var(--k);border-radius:12px;background:#fff;color:var(--k);font:700 17px system-ui,sans-serif;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--y);border-color:var(--y)}
.btn.dark{background:var(--k);color:#fff}
.btn.small{min-height:44px;font-size:15px;width:auto;display:inline-flex;margin:4px 6px 4px 0}
.btn:disabled{opacity:.5}
.snap{min-height:140px;font-size:28px;text-transform:uppercase;letter-spacing:.06em;flex-direction:column}
.snap small{font-size:14px;font-weight:500;text-transform:none;letter-spacing:0}
input,select,textarea{width:100%;min-height:50px;padding:10px 12px;border:1px solid #cfcfcf;border-radius:10px;font:16px system-ui,sans-serif;background:#fff}
textarea{min-height:120px;font-family:ui-monospace,monospace;font-size:14px}
label{display:block;margin:10px 0;font-size:14px;color:#333}
label input,label select,label textarea{margin-top:4px}
.row{display:flex;gap:8px;align-items:center}
.row>*{flex:1}
.row>.btn{flex:0 0 auto;width:auto}
.list a,.list button.item{display:block;width:100%;text-align:left;padding:14px 12px;border:0;border-bottom:1px solid var(--line);background:none;font:inherit;color:inherit;text-decoration:none;cursor:pointer}
.list small{display:block;color:var(--mut)}
.box{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:10px 0}
.box.err{border-color:var(--red);background:var(--redbg)}
.box.warn{border-color:var(--y);background:var(--ybg)}
.box.ok{border-color:var(--ok);background:#eaf6ee}
.read b{font-size:20px}
.serial{font:700 22px ui-monospace,monospace;letter-spacing:.06em}
.card-h{background:var(--k);color:#fff;border-radius:14px;padding:14px 16px;margin-bottom:12px}
.card-h .t{font-size:22px;font-weight:800}
.card-h .s{color:#bbb;font-size:14px}
.pec{border-radius:12px;padding:10px 14px;margin:8px 0;border-left:6px solid}
.pec.critical{background:var(--redbg);border-color:var(--red)}
.pec.important{background:var(--ybg);border-color:var(--y)}
.pec.note{background:var(--gbg);border-color:#bbb}
.pec .lv{font-weight:800;font-size:13px;text-transform:uppercase}
.pec.critical .lv{color:var(--red)}
.pec details{font-size:13px;color:#444;margin-top:4px}
.sec{border:1px solid var(--line);border-radius:12px;margin:10px 0;overflow:hidden}
.sec>header{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--gbg);font-weight:800;font-size:14px;text-transform:uppercase}
.sec>header .src{margin-left:auto;font-weight:600;text-transform:none;font-size:12px;color:var(--mut);text-align:right}
.sec table{width:100%;border-collapse:collapse}
.sec td,.sec th{padding:9px 12px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
.sec th{font-size:12px;color:var(--mut);font-weight:600}
.sec td.num{font-weight:800;font-size:18px;white-space:nowrap}
.sec .empty{padding:10px 12px}
.hidden-data{filter:blur(6px);pointer-events:none;user-select:none}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line);border-radius:16px;padding:2px 10px;font-size:13px;background:#fff}
.chip.un{border-color:var(--red);color:var(--red)}
#toast{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));max-width:640px;margin:0 auto;padding:14px 16px;border-radius:12px;background:var(--k);color:#fff;z-index:10}
.spin{width:44px;height:44px;margin:24px auto;border:5px solid var(--line);border-top-color:var(--y);border-radius:50%;animation:s 1s linear infinite}
@keyframes s{to{transform:rotate(360deg)}}
.pdf{position:relative;overflow:auto;background:#555;border-radius:8px;min-height:60vh;touch-action:pan-x pan-y pinch-zoom}
.pdf canvas{display:block;margin:0 auto;background:#fff}
.form{max-width:520px}
pre{white-space:pre-wrap;word-break:break-all;font-size:12px;background:var(--gbg);padding:10px;border-radius:8px;max-height:320px;overflow:auto}
.check{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-top:1px solid var(--line)}
.check input{width:24px;min-height:24px;flex:0 0 24px;margin-top:2px}
@media(min-width:900px){
  main{max-width:1000px}
  .grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px;align-items:start}
  .grid>.btn{grid-column:1/-1}
  #nav{display:flex}#nav a{border-bottom:0;border-right:1px solid #222}
  .btn{max-width:420px}.snap{max-width:none}
}
[hidden]{display:none!important}
.guide{border:1px solid var(--line);border-radius:12px;margin:8px 0;padding:0 14px}
.guide summary{padding:14px 0;font-weight:800;cursor:pointer;min-height:44px}
.guide[open] summary{border-bottom:1px solid var(--line);margin-bottom:6px}
.guide ul,.guide ol{padding-left:22px;margin:8px 0}.guide li{margin:6px 0}
code{background:var(--gbg);padding:1px 5px;border-radius:5px;font-size:14px}