:root{--bg:#F4FBF9;--card:#FFFFFF;--ink:#15232B;--ink2:#3C4A52;--mute:#6B7A82;--line:#DCE7E4;--teal:#00838A;--teal2:#00A6A6;--mint:#DDF5F1;--amber:#F29900;--coral:#E8453C;--blue:#1A73E8;--ok:#0F8A4B;--warn:#B06000;--r:16px;--sh:0 1px 2px rgba(21,35,43,.06),0 4px 14px rgba(21,35,43,.06);--safeT:env(safe-area-inset-top,0px);--safeB:env(safe-area-inset-bottom,0px)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(64px + var(--safeT))}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;padding-top:var(--safeT);padding-bottom:calc(72px + var(--safeB))}
a{color:var(--teal)}
button{font:inherit;color:inherit}
.top{position:sticky;top:0;z-index:20;background:rgba(244,251,249,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .in{max-width:760px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:8px 14px}
.top .logo{width:38px;height:38px;flex:none}
.top .tt{flex:1;min-width:0;line-height:1.25}
.top .tt b{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .tt span{font-size:13px;color:var(--mute)}
.lang{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 11px;font-size:13px;font-weight:700;cursor:pointer;min-height:36px}
body::before{content:"";position:fixed;inset:0 0 auto;height:var(--safeT);z-index:21;background:rgba(244,251,249,.94)}
main{max-width:760px;margin:0 auto;padding:14px 14px 8px}
.view{display:none}.view.on{display:block}
h1{font-size:22px;line-height:1.3;margin:6px 0 4px}
h2{font-size:18px;margin:22px 0 8px}
h3{font-size:16px;margin:16px 0 6px}
p{margin:6px 0}
.sub{color:var(--ink2);font-size:14.5px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:14px 14px;margin:12px 0}
.card.hl{border-color:#9ED9D2;background:linear-gradient(180deg,#FFFFFF,#F1FBF9)}
.card.amber{border-color:#F5C46B;background:#FFF9EC}
.card.red{border-color:#F2B8B5;background:#FFF5F4}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 10px;font-size:13px;font-weight:700;background:var(--mint);color:#00646A}
.pill.amber{background:#FFEFD1;color:#8A4B00}.pill.red{background:#FDE2E0;color:#A5231B}.pill.gray{background:#EDF1F2;color:var(--ink2)}
.big{display:flex;width:100%;align-items:center;justify-content:center;gap:8px;min-height:54px;border:0;border-radius:14px;background:var(--teal);color:#fff;font-weight:800;font-size:17px;cursor:pointer;box-shadow:0 2px 8px rgba(0,131,138,.25);text-decoration:none}
.big.alt{background:#fff;color:var(--teal);border:2px solid var(--teal);box-shadow:none}
.big.amber{background:var(--amber);box-shadow:0 2px 8px rgba(242,153,0,.3)}
.big:disabled{opacity:.45;cursor:default}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.btn{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:44px;padding:8px 12px;font-weight:700;cursor:pointer}
.btn.on{background:var(--teal);color:#fff;border-color:var(--teal)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;min-height:44px;padding:8px 14px;font-weight:700;font-size:15px;cursor:pointer}
.chip.on{border-color:var(--teal);background:var(--teal);color:#fff}
.q{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:12px 12px 10px;margin:10px 0}
.q .qt{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.q .qt b{font-size:16.5px}
.q .qv{font-size:22px;font-weight:900;color:var(--teal);min-width:2.2em;text-align:right}
.keys{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin-top:8px}
.keys.k11b{grid-template-columns:repeat(6,1fr)}
.key{min-height:46px;border:1.5px solid var(--line);border-radius:12px;background:#F7FAFA;font-weight:800;font-size:17px;cursor:pointer;touch-action:manipulation}
.key.on{background:var(--teal);border-color:var(--teal);color:#fff}
.key.neg.on{background:var(--coral);border-color:var(--coral)}
details.anc{margin-top:8px}
details.anc summary{cursor:pointer;color:var(--teal);font-weight:700;font-size:14px;list-style:none;min-height:32px;display:flex;align-items:center}
details.anc summary::-webkit-details-marker{display:none}
details.anc summary::before{content:"ⓘ";margin-right:6px}
.anc ol{list-style:none;margin:6px 0 0;padding:0}
.anc li{display:grid;grid-template-columns:2.4em 1fr;gap:6px;padding:6px 8px;border-radius:10px;font-size:14px;color:var(--ink2)}
.anc li b{color:var(--ink)}
.anc li.near{background:var(--mint);color:var(--ink)}
.stick{position:sticky;bottom:calc(72px + var(--safeB));padding:10px 0 4px;background:linear-gradient(180deg,rgba(244,251,249,0),var(--bg) 30%)}
.timer{font-size:44px;font-weight:900;letter-spacing:1px;text-align:center;color:var(--teal);font-variant-numeric:tabular-nums}
.prog{height:10px;border-radius:999px;background:#E3EEEC;overflow:hidden}
.prog i{display:block;height:100%;background:linear-gradient(90deg,var(--teal2),var(--amber));border-radius:999px}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}
th{color:var(--ink2);font-size:13px}
.wk{border-left:4px solid var(--line);padding:8px 10px;margin:8px 0;background:#fff;border-radius:0 12px 12px 0}
.wk.now{border-left-color:var(--amber);background:#FFF9EC}
.wk .dts{font-size:13px;color:var(--mute)}
.day{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;width:40px;height:46px;border-radius:10px;margin:3px 2px;font-size:12px;background:#F2F6F6;color:var(--ink2)}
.day b{font-size:14px;color:var(--ink)}
.day.ex{background:#FFE3B0;color:#6B3A00}.day.ex b{color:#6B3A00}
.day.td{outline:2.5px solid var(--teal)}
label.f{display:block;font-weight:700;font-size:14.5px;margin:10px 0 4px}
input[type=text],input[type=email],input[type=number],input[type=date],input[type=time],input[type=datetime-local],select,textarea{width:100%;min-height:46px;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;background:#fff;color:var(--ink)}
textarea{min-height:80px}
.ck{display:flex;gap:10px;align-items:flex-start;padding:10px 4px;border-bottom:1px dashed var(--line);cursor:pointer}
.ck input{width:24px;height:24px;flex:none;margin-top:2px;accent-color:var(--teal)}
.list .it{display:flex;justify-content:space-between;gap:8px;padding:9px 2px;border-bottom:1px solid var(--line);font-size:14.5px}
.list .it span{color:var(--mute)}
.note{font-size:13.5px;color:var(--mute)}
.toast{position:fixed;left:50%;bottom:calc(86px + var(--safeB));transform:translateX(-50%) translateY(20px);background:#15232B;color:#fff;padding:10px 16px;border-radius:12px;font-weight:700;opacity:0;transition:.25s;z-index:60;max-width:88vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
nav.tabs{position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(255,255,255,.97);border-top:1px solid var(--line);padding:6px 6px calc(6px + var(--safeB));display:grid;grid-template-columns:repeat(5,1fr)}
nav.tabs button{border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:2px;min-height:52px;font-size:12px;font-weight:700;color:var(--mute);cursor:pointer;border-radius:12px}
nav.tabs button svg{width:24px;height:24px}
nav.tabs button.on{color:var(--teal);background:var(--mint)}
.sheet{position:fixed;inset:0;z-index:50;background:rgba(21,35,43,.45);display:none}
.sheet.on{display:block}
.sheet .pn{position:absolute;left:0;right:0;bottom:0;max-height:92vh;overflow:auto;background:var(--bg);border-radius:20px 20px 0 0;padding:14px 14px calc(18px + var(--safeB))}
.sheet .x{float:right;border:0;background:#fff;border-radius:999px;width:40px;height:40px;font-size:20px;cursor:pointer;border:1px solid var(--line)}
.guide h2{border-left:5px solid var(--teal);padding-left:10px}
.guide .callout{border-left:5px solid var(--amber);background:#FFF9EC;padding:8px 12px;border-radius:0 12px 12px 0;margin:10px 0}
.guide .danger{border-left:5px solid var(--coral);background:#FFF5F4;padding:8px 12px;border-radius:0 12px 12px 0;margin:10px 0}
footer.ft{max-width:760px;margin:20px auto 0;padding:12px 14px 24px;color:var(--mute);font-size:13px;text-align:center}
@media (min-width:960px){
 body{padding-bottom:0;padding-left:96px}
 nav.tabs{top:0;bottom:0;right:auto;width:96px;grid-template-columns:1fr;grid-auto-rows:min-content;align-content:center;gap:6px;border-top:0;border-right:1px solid var(--line);padding:calc(70px + var(--safeT)) 8px 8px}
 .stick{bottom:0}
 .toast{bottom:28px}
 .sheet .pn{left:50%;right:auto;width:680px;transform:translateX(-50%);bottom:4vh;border-radius:20px;max-height:88vh}
 .keys{grid-template-columns:repeat(11,1fr)}
}
@media print{
 nav.tabs,.top,.noprint,.toast,.sheet{display:none!important}
 body{background:#fff;padding:0}
 .view{display:none!important}.view.print{display:block!important}
 .card,.q{box-shadow:none}
 a{color:#000}
}

/* p470 mobile usability */
.big{height:auto;padding:12px 16px;line-height:1.3;text-align:center;white-space:normal;text-decoration:none}.lang{min-height:44px;padding:8px 14px}a[aria-label*="返回"],a[aria-label*="Back"],a[title*="返回"],a[title*="Back"]{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}input[type="checkbox"],input[type="radio"]{width:24px;height:24px;flex:none}label:has(input[type="checkbox"]),label:has(input[type="radio"]){min-height:44px;display:flex;align-items:center;gap:10px;cursor:pointer}