:root{color-scheme:light dark;--bg:#f5f8f6;--panel:#fff;--ink:#203c37;--ink2:#12443b;--mute:#4d6660;--line:#d5e2dc;--green:#146653;--green2:#236d5a;--soft:#e6f0eb;--warn:#b46c18;--danger:#b3261e;--shadow:0 1px 2px rgba(18,68,59,.08)}
@media (prefers-color-scheme:dark){:root{--bg:#0f1f1b;--panel:#16302a;--ink:#e6f0eb;--ink2:#f3f8f5;--mute:#9fbcb1;--line:#2b4a42;--green:#5fc3a4;--green2:#79d0b5;--soft:#1d3b34;--warn:#f0b35b;--danger:#ff8a80;--shadow:none}}
*{box-sizing:border-box}html{scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"PingFang TC","Noto Sans TC",sans-serif;padding-bottom:calc(72px + env(safe-area-inset-bottom))}
a{color:var(--green)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--warn);outline-offset:3px}
.sr-only{position:absolute;left:-9999px}.skip{position:absolute;left:-9999px;top:8px}.skip:focus{left:8px;background:var(--panel);padding:6px 10px;z-index:30}
.top{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:56px;padding:6px 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink2);text-decoration:none}.brand img{border-radius:8px}.brand span{font-weight:400;font-size:.8rem;color:var(--mute)}
.top-right{display:flex;align-items:center;gap:8px}.tier{font-size:.78rem;padding:3px 9px;border-radius:999px;background:var(--soft);color:var(--ink2)}.tier.member{background:var(--green);color:#fff}
.view{max-width:720px;margin:0 auto;padding:12px 16px}
.panel>h2{margin:8px 0 10px;font-size:1.25rem}
.box{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin:12px 0;box-shadow:var(--shadow)}
.box h3{margin:0 0 6px;font-size:1.02rem}.box>summary{cursor:pointer;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}.box>summary .fine{margin:0}
.fine{font-size:.85rem;color:var(--mute);margin:6px 0}
.clockline{display:flex;justify-content:space-between;gap:8px;font-size:.9rem;color:var(--mute);padding:4px 2px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.chip{border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:999px;padding:8px 13px;font:inherit;font-size:.92rem;cursor:pointer;min-height:40px}
.chip:hover,.chip:active{border-color:var(--green);background:var(--soft)}.chip.hi{background:var(--soft);border-color:var(--green)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin:8px 0}.row label.grow{flex:1 1 220px}
label{display:flex;flex-direction:column;gap:4px;font-size:.9rem;color:var(--mute)}label input,label select{font:inherit;font-size:1rem;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:9px 11px;min-height:42px}
label.check,.devices label{flex-direction:row;align-items:center;gap:8px;color:var(--ink);font-size:.95rem}
.grid4{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px;margin:8px 0}
.sub{margin:8px 0;padding:8px 10px;border:1px dashed var(--line);border-radius:10px}.sub summary{cursor:pointer;font-size:.92rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 16px;border:0;border-radius:11px;background:var(--green);color:#fff;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--ink2)}.btn.small{min-height:34px;padding:0 10px;font-size:.85rem}.btn.danger{color:var(--danger);border-color:var(--danger)}
.btn:disabled{opacity:.5;cursor:default}
.interaction{margin:8px 0 14px}
.card{background:var(--panel);border:1px solid var(--line);border-left:5px solid var(--green);border-radius:14px;padding:14px 16px;box-shadow:var(--shadow);animation:in .25s ease-out}
.card.safety{border-left-color:var(--danger);background:color-mix(in srgb,var(--danger) 8%,var(--panel))}.card.none{border-left-color:var(--mute)}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.card .meta{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:.8rem;color:var(--mute);margin-bottom:6px}.card .meta b{color:var(--ink2)}
.card h2{margin:4px 0 8px;font-size:1.15rem;line-height:1.35}.card .hook{font-size:1.02rem;color:var(--ink2);margin:0 0 10px}
.card ul{margin:6px 0 6px 1.1em;padding:0}.card li{margin:4px 0}
.tag{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--ink2);margin-right:4px}
.lead{background:var(--soft);border-radius:10px;padding:10px 12px;margin:8px 0}
.flip{border:1px solid var(--line);border-radius:12px;padding:14px;margin:10px 0;background:var(--bg)}.flip .prompt{font-size:1.1rem;font-weight:600}.flip .answer{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}
.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:10px 0}.grades .btn{padding:0 6px;font-size:.92rem}
.options{display:grid;gap:8px;margin:10px 0}.opt{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--bg);cursor:pointer}.opt input{margin-top:4px}
.opt.correct{border-color:var(--green);background:var(--soft)}.opt.wrong{border-color:var(--danger)}
.stem{font-size:1.02rem;margin:6px 0}.exam .q{border-top:1px solid var(--line);padding-top:10px;margin-top:12px}.timer{font-variant-numeric:tabular-nums;font-weight:700;color:var(--warn)}
.result{margin:10px 0;padding:10px 12px;border-radius:10px;background:var(--soft)}.result.bad{background:color-mix(in srgb,var(--danger) 10%,var(--panel))}
.links{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 4px}.links a{font-size:.88rem;border:1px solid var(--line);border-radius:999px;padding:4px 10px;text-decoration:none;color:var(--ink2)}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.why{font-size:.85rem;color:var(--mute);margin-top:8px}.why summary{cursor:pointer}
.song{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:8px 0;background:var(--bg)}.song .lyric{white-space:pre-line;color:var(--ink2);margin:6px 0}
.timeline{list-style:none;padding:0;margin:8px 0}.timeline li{display:grid;grid-template-columns:52px 1fr;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);font-size:.92rem}.timeline time{color:var(--mute);font-variant-numeric:tabular-nums}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.kv div{background:var(--bg);border-radius:10px;padding:8px 10px}.kv b{display:block;font-size:1.3rem;color:var(--ink2)}.kv span{font-size:.8rem;color:var(--mute)}
.bar{height:8px;background:var(--line);border-radius:999px;overflow:hidden;margin:6px 0}.bar i{display:block;height:100%;background:var(--green)}
.subjects{width:100%;border-collapse:collapse;font-size:.9rem;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}.subjects th,.subjects td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left}.subjects td.n{text-align:right;font-variant-numeric:tabular-nums}
.advice{border-left:4px solid var(--warn)}
.reminders{list-style:none;padding:0;margin:8px 0}.reminders li{display:grid;grid-template-columns:auto 1fr auto auto;gap:8px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line)}
.reminders input[type=time],.reminders select{font:inherit;font-size:.95rem;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:7px 9px;min-height:40px;max-width:100%}
.reminders label.check{font-size:.9rem}
.settings{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}.settings .row{grid-column:1/-1}.settings label.check{grid-column:1/-1}
.tabs{position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--panel);border-top:1px solid var(--line);padding:4px 4px calc(4px + env(safe-area-inset-bottom));z-index:20}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:1px;border:0;background:none;color:var(--mute);font:inherit;font-size:.78rem;padding:6px 2px;cursor:pointer;border-radius:10px}.tab .ico{font-size:1.15rem}.tab.active{color:var(--green);font-weight:700}
.toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom));transform:translateX(-50%);background:var(--ink2);color:#fff;padding:10px 16px;border-radius:999px;font-size:.9rem;z-index:30;max-width:92vw}
@media (max-width:440px){.brand span{display:none}.brand{font-size:1.05rem}.tier{white-space:nowrap}.top{padding:6px 12px}.view{padding:10px 12px}}
@media (prefers-reduced-motion:reduce){.card{animation:none}}
@media print{.tabs,.top,.chips,.actions{display:none}}