@import "https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800;900&family=Noto+Sans+TC:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap";
:root{--teal:#0e7c6f;--teal-700:#0a5f55;--teal-600:#0c6e62;--teal-300:#5fa89e;--teal-100:#cfe6e1;--teal-50:#e7f2ef;--banner-from:#167a6f;--banner-to:#0a554c;--ink:#1c2b29;--ink-2:#3c4a47;--muted:#8a938f;--faint:#aab2ad;--page:#f5f6f3;--surface:#fff;--raised:#fbfbf8;--sunk:#f0f2ee;--line:#eceeea;--line-2:#e1e4df;--gold:#e3a815;--gold-bg:#fcf1cc;--gold-ink:#7a5a12;--coral:#ee6c4d;--coral-bg:#fce7e0;--coral-ink:#c1492c;--green:#3e9d58;--green-bg:#e8f3e6;--green-ink:#2e6b3c;--purple:#7c4db8;--purple-bg:#eee5f8;--purple-ink:#5a3690;--amber:#dc9a30;--amber-bg:#fbefcb;--amber-ink:#7a5712;--font:"Noto Sans TC","Nunito",system-ui,-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;--font-num:"Nunito","Noto Sans TC",system-ui,sans-serif;--font-mono:"JetBrains Mono",ui-monospace,Menlo,monospace;--ts:1;--rm:1;--dens:1;--r-xs:calc(8px * var(--rm));--r-sm:calc(12px * var(--rm));--r-md:calc(16px * var(--rm));--r-lg:calc(22px * var(--rm));--r-xl:calc(28px * var(--rm));--r-pill:999px;--card-pad:calc(20px * var(--dens));--gap:calc(18px * var(--dens));--gap-sm:calc(12px * var(--dens));--rail-w:320px;--sh-xs:0 1px 2px #162a260d;--sh-sm:0 1px 2px #162a260a, 0 4px 14px #162a260d;--sh-md:0 2px 6px #162a260f, 0 10px 28px #162a2614;--sh-pop:0 12px 40px #162a2629;--ease:cubic-bezier(.2,.7,.2,1);--ease-spring:cubic-bezier(.34,1.4,.5,1);--sidebar-w:248px;--sidebar-collapsed:76px}*{box-sizing:border-box}html{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-size:calc(16px * var(--ts))}body{font-family:var(--font);color:var(--ink);background:var(--page);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;margin:0;font-size:.9375rem;line-height:1.6}h1,h2,h3,h4{letter-spacing:-.01em;color:var(--ink);margin:0;font-weight:800;line-height:1.2}p{text-wrap:pretty;margin:0}a{color:inherit;text-decoration:none}button{font-family:inherit}.tnum{font-variant-numeric:tabular-nums;font-family:var(--font-num)}.mono{font-family:var(--font-mono)}.app{grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh;transition:grid-template-columns .26s var(--ease);display:grid}.app.collapsed{grid-template-columns:var(--sidebar-collapsed) 1fr}.sidebar{background:var(--surface);border-right:1px solid var(--line);z-index:40;flex-direction:column;height:100vh;padding:18px 14px;display:flex;position:sticky;top:0}.sb-logo{align-items:center;gap:10px;min-height:44px;padding:6px 8px 18px;display:flex}.sb-logo img{flex-shrink:0;width:36px;height:36px}.sb-logo .word{letter-spacing:-.02em;color:var(--ink);font-size:1.3rem;font-weight:900}.collapsed .sb-logo .word,.collapsed .sb-cta span,.collapsed .nav-item span,.collapsed .sb-foot .uinfo,.collapsed .sb-section,.collapsed .sb-collapse span{display:none}.collapsed .sb-logo{justify-content:center;padding-left:0;padding-right:0}.sb-cta{background:var(--teal);color:#fff;border-radius:var(--r-md);cursor:pointer;transition:background .14s var(--ease), transform .12s var(--ease);border:none;justify-content:center;align-items:center;gap:8px;margin-bottom:16px;padding:13px 16px;font-size:.95rem;font-weight:800;display:flex;box-shadow:0 2px 8px #0e7c6f47}.sb-cta:hover{background:var(--teal-700)}.sb-cta svg{flex-shrink:0;width:20px;height:20px}.sb-cta:active{transform:scale(.98)}.collapsed .sb-cta{padding:13px 0}.sb-section{letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-top:8px;padding:4px 12px;font-size:.7rem;font-weight:700}.nav{flex-direction:column;gap:3px;display:flex}.nav-item{border-radius:var(--r-sm);color:var(--ink-2);cursor:pointer;transition:background .14s var(--ease), color .14s var(--ease);align-items:center;gap:13px;padding:11px 12px;font-size:.95rem;font-weight:600;display:flex;position:relative}.nav-item svg{stroke-width:1.9px;flex-shrink:0;width:22px;height:22px}.nav-item:hover{background:var(--sunk)}.nav-item.active{background:var(--teal-50);color:var(--teal)}.nav-item.active svg{color:var(--teal)}.nav-item .badge{background:var(--coral);color:#fff;border-radius:999px;margin-left:auto;padding:2px 7px;font-size:.66rem;font-weight:800}.collapsed .nav-item{justify-content:center;padding:11px 0}.collapsed .nav-item .badge{display:none}.sb-foot{margin-top:auto;padding-top:14px}.sb-user{border-radius:var(--r-md);cursor:pointer;border:1px solid var(--line);background:var(--raised);transition:border-color .14s var(--ease);align-items:center;gap:10px;padding:9px;display:flex}.sb-user:hover{border-color:var(--line-2)}.sb-user .av{background:var(--teal-50);border-radius:50%;flex-shrink:0;place-items:center;width:38px;height:38px;display:grid;overflow:hidden}.sb-user .av img{object-fit:cover;width:100%;height:100%}.sb-user .uinfo{min-width:0}.sb-user .uinfo .nm{white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:800;overflow:hidden}.sb-user .uinfo .pl{color:var(--muted);font-size:.72rem}.collapsed .sb-user{justify-content:center;padding:9px 0}.sb-collapse{border-radius:var(--r-sm);color:var(--muted);cursor:pointer;transition:background .14s var(--ease);background:0 0;border:none;justify-content:center;align-items:center;gap:8px;margin-top:10px;padding:8px;font-size:.8rem;font-weight:600;display:flex}.sb-collapse:hover{background:var(--sunk);color:var(--ink-2)}.sb-collapse svg{width:18px;height:18px;transition:transform .26s var(--ease)}.collapsed .sb-collapse svg{transform:rotate(180deg)}.main{flex-direction:column;min-width:0;display:flex}.topbar{z-index:30;background:color-mix(in srgb, var(--page) 82%, transparent);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);align-items:center;gap:16px;padding:16px 32px;display:flex;position:sticky;top:0}.topbar .tb-title{font-size:1.05rem;font-weight:800}.topbar .tb-sub{color:var(--muted);font-size:.78rem;font-weight:600}.tb-spacer{flex:1}.tb-search{background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-pill);min-width:240px;color:var(--muted);transition:border-color .14s var(--ease), box-shadow .14s var(--ease);align-items:center;gap:9px;padding:9px 16px;display:flex}.tb-search:focus-within{border-color:var(--teal-300);box-shadow:0 0 0 3px var(--teal-50)}.tb-search input{font:inherit;color:var(--ink);background:0 0;border:none;outline:none;flex:1;font-size:.875rem}.tb-search svg{width:18px;height:18px}.icon-btn{border-radius:var(--r-md);border:1px solid var(--line-2);background:var(--surface);cursor:pointer;width:42px;height:42px;color:var(--ink-2);transition:background .14s var(--ease), border-color .14s var(--ease);place-items:center;display:grid}.icon-btn:hover{background:var(--sunk)}.icon-btn svg{width:20px;height:20px}.content{width:100%;max-width:1140px;margin:0 auto;padding:26px 36px 64px}.content.wide{max-width:1280px}.layout-rail{grid-template-columns:minmax(0,1fr) var(--rail-w);gap:var(--gap);align-items:start;display:grid}.layout-rail>.main-col{gap:var(--gap);flex-direction:column;min-width:0;display:flex}.layout-rail>.rail{gap:var(--gap);flex-direction:column;display:flex;position:sticky;top:88px}@media (max-width:1060px){.layout-rail{grid-template-columns:1fr}.layout-rail>.rail{position:static}}.layout-focus{gap:var(--gap);flex-direction:column;max-width:760px;margin:0 auto;display:flex}.layout-focus.wide-focus{max-width:880px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:var(--card-pad);box-shadow:var(--sh-sm)}.card.flat{box-shadow:none}.card.tight{padding:calc(16px * var(--dens))}.sec-head{align-items:center;gap:11px;margin-bottom:14px;display:flex}.sec-head .bar{background:var(--teal);border-radius:4px;flex-shrink:0;width:4px;height:20px}.sec-head h3{font-size:1.12rem}.sec-head.purple .bar{background:var(--purple)}.sec-head.coral .bar{background:var(--coral)}.sec-head .more{color:var(--teal);cursor:pointer;margin-left:auto;font-size:.82rem;font-weight:700}.eyebrow{letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-size:.72rem;font-weight:800}.btn{border-radius:var(--r-md);cursor:pointer;transition:background .14s var(--ease), transform .12s var(--ease), border-color .14s var(--ease);border:1.5px solid #0000;justify-content:center;align-items:center;gap:8px;padding:13px 22px;font-size:.95rem;font-weight:800;line-height:1;display:inline-flex}.btn:active{transform:scale(.98)}.btn svg{width:18px;height:18px}.btn-primary{background:var(--teal);color:#fff;border-color:var(--teal);box-shadow:0 2px 8px #0e7c6f40}.btn-primary:hover{background:var(--teal-700);border-color:var(--teal-700)}.btn-ghost{background:var(--surface);color:var(--teal);border-color:var(--teal-100)}.btn-ghost:hover{background:var(--teal-50)}.btn-soft{background:var(--sunk);color:var(--ink);border-color:var(--line)}.btn-soft:hover{background:var(--line)}.btn-lg{padding:16px 28px;font-size:1.02rem}.btn-block{width:100%}.chip{white-space:nowrap;border-radius:var(--r-pill);background:var(--sunk);color:var(--ink-2);border:1px solid var(--line);align-items:center;gap:6px;padding:7px 13px;font-size:.78rem;font-weight:700;line-height:1;display:inline-flex}.chip svg{width:14px;height:14px}.chip.teal{background:var(--teal-50);color:var(--teal);border-color:var(--teal-100)}.chip.solid{background:var(--teal);color:#fff;border-color:var(--teal)}.chip.coral{background:var(--coral-bg);color:var(--coral-ink);border-color:color-mix(in srgb,var(--coral) 32%,#fff)}.chip.green{background:var(--green-bg);color:var(--green-ink);border-color:color-mix(in srgb,var(--green) 30%,#fff)}.chip.gold{background:var(--gold-bg);color:var(--gold-ink);border-color:color-mix(in srgb,var(--gold) 35%,#fff)}.chip.amber{background:var(--amber-bg);color:var(--amber-ink);border-color:color-mix(in srgb,var(--amber) 35%,#fff)}.chip.purple{background:var(--purple-bg);color:var(--purple-ink);border-color:color-mix(in srgb,var(--purple) 28%,#fff)}.segs{background:var(--sunk);border-radius:var(--r-pill);gap:4px;padding:4px;display:inline-flex}.segs button{cursor:pointer;color:var(--muted);border-radius:var(--r-pill);transition:all .14s var(--ease);background:0 0;border:none;padding:8px 16px;font-family:inherit;font-size:.86rem;font-weight:700}.segs button.on{background:var(--surface);color:var(--teal);box-shadow:var(--sh-xs)}.filters{flex-wrap:wrap;gap:9px;display:flex}.fpill{border:1.5px solid var(--line-2);background:var(--surface);cursor:pointer;color:var(--ink-2);border-radius:var(--r-pill);transition:all .14s var(--ease);align-items:center;gap:7px;padding:8px 16px;font-family:inherit;font-size:.82rem;font-weight:700;display:inline-flex}.fpill:hover{border-color:var(--teal-300)}.fpill.on{border-color:var(--teal);color:var(--teal);background:var(--teal-50)}.fpill .n{color:var(--muted);font-weight:700}.fpill.on .n{color:var(--teal)}.bar-track{background:var(--sunk);border-radius:999px;height:9px;overflow:hidden}.bar-fill{background:var(--teal);height:100%;transition:width .5s var(--ease);border-radius:999px}.bar-fill.coral{background:var(--coral)}.bar-fill.gold{background:var(--gold)}.bar-fill.green{background:var(--green)}.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:calc(16px * var(--dens)) calc(18px * var(--dens));box-shadow:var(--sh-sm);align-items:center;gap:14px;display:flex}.stat .ic{border-radius:12px;flex-shrink:0;place-items:center;width:40px;height:40px;display:grid}.stat .ic svg{width:20px;height:20px}.stat .st-meta{flex-direction:column;gap:2px;min-width:0;display:flex}.stat .big{font-size:1.55rem;font-weight:900;line-height:1.05}.stat .lbl{color:var(--muted);font-size:.78rem;font-weight:600}.ic.teal{background:var(--teal-50);color:var(--teal)}.ic.green{background:var(--green-bg);color:var(--green)}.ic.gold{background:var(--gold-bg);color:var(--gold)}.ic.coral{background:var(--coral-bg);color:var(--coral)}.ic.purple{background:var(--purple-bg);color:var(--purple)}.lrow{border-bottom:1px solid var(--line);cursor:pointer;align-items:center;gap:14px;padding:15px 4px;display:flex}.lrow:last-child{border-bottom:none}.lrow .li{background:var(--sunk);width:38px;height:38px;color:var(--ink-2);border-radius:11px;flex-shrink:0;place-items:center;display:grid}.lrow .li svg{width:20px;height:20px}.lrow .lt{font-weight:700}.lrow .lv{color:var(--muted);align-items:center;gap:8px;margin-left:auto;font-weight:600;display:flex}.lrow .lv svg{width:18px;height:18px;color:var(--faint)}.banner{border-radius:var(--r-lg);background:linear-gradient(135deg, var(--banner-from), var(--banner-to));color:#fff;padding:calc(22px * var(--dens)) calc(26px * var(--dens));position:relative;overflow:hidden}.banner .mascot{opacity:.96;filter:drop-shadow(0 6px 14px #0000002e);pointer-events:none;width:108px;position:absolute;bottom:-4px;right:16px}.banner .pill{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff29;border:1px solid #ffffff52;border-radius:999px;align-items:center;gap:6px;padding:6px 13px;font-size:.78rem;font-weight:800;display:inline-flex}.banner .pill svg{width:15px;height:15px}.banner h2{color:#fff;margin:11px 0 5px;font-size:1.4rem}.banner p{color:#ffffffd9;max-width:66%;font-size:.88rem}.opt-letter{background:var(--sunk);width:30px;height:30px;color:var(--ink-2);border-radius:9px;flex-shrink:0;place-items:center;font-size:.85rem;font-weight:800;display:grid}.opt-letter svg{width:17px;height:17px}.dash{border:none;border-top:1px dashed var(--line-2);margin:14px 0}.mnote{align-items:flex-start;gap:12px;display:flex}.mnote .mav{background:var(--teal-50);border-radius:50%;flex-shrink:0;place-items:center;width:46px;height:46px;display:grid;overflow:hidden}.mnote .mav img{width:40px;height:40px}.row{align-items:center;gap:var(--gap-sm);display:flex}.col{flex-direction:column;display:flex}.between{justify-content:space-between}.wrap{flex-wrap:wrap}.grid{gap:var(--gap);display:grid}.muted{color:var(--muted)}.faint{color:var(--faint)}.center{text-align:center}#tweakPanel{background:var(--surface);border-left:1px solid var(--line);width:320px;height:100vh;box-shadow:var(--sh-pop);z-index:100;transition:transform .3s var(--ease);flex-direction:column;display:flex;position:fixed;top:0;right:0;transform:translate(105%)}#tweakPanel.open{transform:translate(0)}.twk-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:20px 22px;font-size:1.05rem;font-weight:800;display:flex}.twk-head button{background:var(--sunk);cursor:pointer;width:34px;height:34px;color:var(--ink-2);border:none;border-radius:10px;place-items:center;display:grid}.twk-head button:hover{background:var(--line)}.twk-head svg{width:18px;height:18px}.twk-body{flex-direction:column;gap:24px;padding:22px;display:flex}.twk-row{flex-direction:column;gap:10px;display:flex}.twk-lbl{justify-content:space-between;font-size:.9rem;font-weight:700;display:flex}.twk-lbl b{color:var(--teal);font-variant-numeric:tabular-nums}.twk-row input[type=range]{appearance:none;background:var(--sunk);cursor:pointer;border-radius:999px;outline:none;height:6px}.twk-row input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--teal);width:22px;height:22px;box-shadow:var(--sh-sm);cursor:pointer;border:3px solid #fff;border-radius:50%}.twk-row input[type=range]::-moz-range-thumb{background:var(--teal);width:22px;height:22px;box-shadow:var(--sh-sm);cursor:pointer;border:3px solid #fff;border-radius:50%}.twk-seg{background:var(--sunk);border-radius:var(--r-md);gap:4px;padding:4px;display:flex}.twk-seg button{cursor:pointer;color:var(--muted);border-radius:calc(var(--r-md) - 4px);transition:all .14s var(--ease);background:0 0;border:none;flex:1;padding:9px;font-family:inherit;font-size:.86rem;font-weight:700}.twk-seg button.on{background:var(--surface);color:var(--teal);box-shadow:var(--sh-xs)}.twk-reset{border-radius:var(--r-md);border:1.5px solid var(--line-2);background:var(--surface);color:var(--ink-2);cursor:pointer;margin-top:6px;padding:11px;font-family:inherit;font-weight:700}.twk-reset:hover{background:var(--sunk)}.reco{border:1px solid var(--line);border-radius:var(--r-md);background:var(--raised);flex-direction:column;gap:11px;padding:18px;display:flex}.reco-t{font-size:1.05rem;font-weight:800}.srow{border-bottom:1px solid var(--line);align-items:center;gap:14px;padding:12px 0;display:flex}.srow:last-child{border-bottom:none}.srow .sn{font-family:var(--font-num);color:var(--faint);flex-shrink:0;width:20px;font-size:.9rem;font-weight:800}.srow .smeta{flex:1;min-width:0}.srow .snm{font-size:.95rem;font-weight:700}.srow .spct{text-align:right;flex-shrink:0;width:52px;font-size:1.05rem;font-weight:900}.ring{border-radius:50%;place-items:center;width:124px;height:124px;margin:4px auto 8px;display:grid;position:relative}.ring:before{content:"";background:var(--surface);border-radius:50%;position:absolute;inset:13px}.ring-num{text-align:center;line-height:1.1;position:relative}.ring-num b{font-size:1.7rem;font-weight:900;display:block}.ring-num span{color:var(--muted);font-size:.72rem;font-weight:600}.chart{align-items:flex-end;gap:12px;height:150px;padding-top:24px;display:flex}.cbar{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:8px;height:100%;display:flex}.cfill{background:var(--teal-100);width:100%;max-width:38px;transition:height .5s var(--ease);border-radius:8px 8px 4px 4px;position:relative}.cfill.last{background:var(--teal)}.cfill.empty{background:var(--line-2)}.cfill .ctip{color:var(--ink-2);opacity:0;white-space:nowrap;font-size:.72rem;font-weight:800;transition:opacity .14s;position:absolute;top:-22px;left:50%;transform:translate(-50%)}.cbar:hover .ctip{opacity:1}.cbar:hover .cfill:not(.empty){background:var(--teal-300)}.cbar:hover .cfill.last{background:var(--teal-700)}.cwk{color:var(--faint);font-size:.74rem;font-weight:700}.rk{text-align:center;width:24px;color:var(--faint);font-weight:900;font-family:var(--font-num);flex-shrink:0}.rk.top{color:var(--gold)}.drill-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.drill-foot{align-items:center;gap:10px;margin-top:4px;display:flex}.drill-wrap{gap:var(--gap);grid-template-columns:1fr 320px;align-items:start;display:grid}.drill-rail{position:sticky;top:92px}.qflag{border:1px solid var(--line-2);background:var(--surface);color:var(--muted);border-radius:var(--r-pill);cursor:pointer;transition:all .14s var(--ease);align-items:center;gap:6px;padding:7px 13px;font-family:inherit;font-size:.8rem;font-weight:700;display:inline-flex}.qflag svg{width:15px;height:15px}.qflag:hover,.qflag.on{color:var(--gold-ink);background:var(--gold-bg);border-color:var(--gold)}.qstem{letter-spacing:-.01em;margin:0 0 22px;font-size:1.2rem;font-weight:700;line-height:1.6}.qstem b{color:var(--coral-ink)}.opts{flex-direction:column;gap:12px;display:flex}.opt{text-align:left;border-radius:var(--r-md);cursor:pointer;border:1.5px solid var(--line-2);background:var(--surface);width:100%;color:var(--ink);transition:border-color .14s var(--ease), background .14s var(--ease), transform .1s var(--ease);align-items:flex-start;gap:14px;padding:16px 18px;font-family:inherit;font-size:1.02rem;line-height:1.5;display:flex}.opt:hover{border-color:var(--teal-300);background:var(--teal-50)}.opt:active{transform:scale(.995)}.opt .opt-t{flex:1;padding-top:3px}.opt.sel{border-color:var(--teal);background:var(--teal-50)}.opt.sel .opt-letter{background:var(--teal);color:#fff}.opt.correct{border-color:var(--green);background:var(--green-bg);cursor:default}.opt.correct .opt-letter{background:var(--green);color:#fff}.opt.wrong{border-color:var(--coral);background:var(--coral-bg);cursor:default}.opt.wrong .opt-letter{background:var(--coral);color:#fff}.opt.dim{opacity:.55;cursor:default}.opt.dim:hover{border-color:var(--line-2);background:var(--surface)}.qfoot{align-items:center;gap:10px;margin-top:24px;display:flex}.qgrid{grid-template-columns:repeat(5,1fr);gap:8px;display:grid}.qn{aspect-ratio:1;border:1.5px solid var(--line-2);background:var(--surface);font-family:var(--font-num);color:var(--muted);cursor:pointer;transition:all .12s var(--ease);border-radius:10px;font-size:.9rem;font-weight:800}.qn:hover{border-color:var(--teal-300)}.qn.ok{background:var(--green-bg);border-color:color-mix(in srgb,var(--green) 30%,#fff);color:var(--green-ink)}.qn.wrong{background:var(--coral-bg);border-color:color-mix(in 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.cmp-d{color:var(--ink-2);font-size:.92rem;line-height:1.7}.pitfall{background:var(--coral-bg);border:1px solid color-mix(in srgb,var(--coral) 28%,#fff);border-radius:var(--r-md);align-items:flex-start;gap:12px;margin-top:26px;padding:16px 18px;display:flex}.pitfall .pf-ic{flex-shrink:0;font-size:1.05rem;line-height:1.6}.pitfall .pf-b{color:var(--coral-ink);font-size:.93rem;line-height:1.75}.pitfall .pf-b b{color:var(--coral-ink);font-weight:800}.nd-tags{border-top:1px solid var(--line);flex-wrap:wrap;gap:8px;margin-top:26px;padding-top:20px;display:flex}.toast{background:var(--ink);color:#fff;border-radius:var(--r-pill);box-shadow:var(--sh-pop);opacity:0;pointer-events:none;z-index:200;transition:opacity .25s var(--ease), transform .25s var(--ease);padding:13px 22px;font-size:.9rem;font-weight:700;position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px)}.toast.show{opacity:1;transform:translate(-50%)}@media (max-width:1000px){.notes-reader{grid-template-columns:1fr}.note-index{max-height:none;position:static}}@media (max-width:900px){.app{grid-template-columns:var(--sidebar-collapsed) 1fr}.sidebar .word,.sidebar .sb-cta span,.nav-item span,.sb-user .uinfo,.sb-section,.sb-collapse span{display:none}.sb-logo,.nav-item,.sb-user,.sb-cta{justify-content:center}.content,.topbar{padding-left:18px;padding-right:18px}}
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var(--line,#e7e9ee);border-radius:14px;min-height:210px;margin-top:14px;position:relative;overflow:hidden}.expl-lock-blur{filter:blur(7px);-webkit-user-select:none;user-select:none;pointer-events:none;padding:18px}.sk-line{background:linear-gradient(90deg,#e6eaef,#f2f4f7);border-radius:6px;height:13px;margin-bottom:13px}.expl-lock-overlay{text-align:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#ffffff8c;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:24px;display:flex;position:absolute;inset:0}.expl-lock-overlay .ttl{color:var(--ink,#1f2937);font-size:1rem;font-weight:800}.expl-lock-overlay p{color:var(--ink-2,#6b7280);max-width:320px;margin:0;font-size:.85rem;line-height:1.6}.expl-lock-overlay .btn{margin-top:6px}.pick-row{text-align:left;cursor:pointer;border:1.5px solid var(--line,#e7e9ee);width:100%;color:var(--ink,#1f2937);background:#fff;border-radius:12px;align-items:center;gap:10px;padding:12px 14px;font-family:inherit;font-size:.92rem;display:flex}.pick-row.on{border-color:var(--teal,#14b8a6);background:var(--teal-50,#eefcfb)}.pick-radio{border:2px solid var(--line,#cbd5e1);width:18px;height:18px;color:var(--teal,#14b8a6);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:10px;display:inline-flex}.pick-row.on .pick-radio{border-color:var(--teal,#14b8a6)}.subj-ic.teal{background:var(--teal-50,#eefcfb);color:var(--teal,#0e7c74)}.subj-ic.green{background:var(--green-bg,#e9f9ef);color:var(--green,#16a34a)}.subj-ic.coral{background:var(--coral-bg,#fff1f0);color:var(--coral,#f0654a)}.subj-ic.gold{background:var(--gold-bg,#fff7e6);color:var(--gold,#d99a06)}.subj-ic.purple{background:var(--purple-bg,#f3effe);color:var(--purple,#7c5cff)}.oa-note{display:block}.goal-opt{text-align:left;cursor:pointer;border:1.5px solid var(--line,#e7e9ee);width:100%;color:var(--ink,#1f2937);background:#fff;border-radius:14px;align-items:center;gap:14px;padding:13px 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.qn-head{justify-content:space-between;align-items:baseline;margin-bottom:12px;display:flex}.qr-nav .qn-head h3{font-size:.98rem;font-weight:800}.qnav-scroll{max-height:calc(100vh - 250px);margin:0 -4px;padding:2px 4px;overflow-y:auto}.qnav-grid{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.qnav-cell{aspect-ratio:1;border:1.5px solid var(--line-2);background:var(--surface);color:var(--ink-2);cursor:pointer;transition:border-color .12s var(--ease), background .12s var(--ease), color .12s var(--ease);border-radius:9px;place-items:center;font-family:inherit;font-size:.82rem;font-weight:800;display:grid}.qnav-cell:hover{border-color:var(--teal-300)}.qnav-cell.done{background:var(--sunk);color:var(--ink)}.qnav-cell.correct{border-color:color-mix(in srgb,var(--green) 42%,#fff);background:var(--green-bg);color:var(--green-ink)}.qnav-cell.wrong{border-color:var(--coral);background:var(--coral-bg);color:var(--coral-ink)}.qnav-cell.on{border-color:var(--teal);background:var(--teal);color:#fff;box-shadow:var(--sh-sm)}.qnav-legend{color:var(--muted);flex-wrap:wrap;gap:10px 14px;margin-top:14px;font-size:.72rem;display:flex}.qnav-legend span{align-items:center;gap:5px;display:inline-flex}.qnav-legend i{border:1.5px solid var(--line-2);border-radius:3px;width:11px;height:11px;display:inline-block}.qnav-legend i.c-cur{background:var(--teal);border-color:var(--teal)}.qnav-legend i.c-ok{background:var(--green-bg);border-color:color-mix(in srgb,var(--green) 42%,#fff)}.qnav-legend i.c-no{background:var(--coral-bg);border-color:var(--coral)}@media (max-width:1000px){.qreader{grid-template-columns:1fr}.qr-nav{order:-1;position:static}.qnav-scroll{max-height:168px}.qnav-grid{grid-template-columns:repeat(8,1fr)}}.sb-trial{border:1.5px solid var(--teal-100,#cfe6e1);background:var(--teal-50,#e7f2ef);text-align:center;border-radius:16px;flex-direction:column;align-items:center;gap:10px;margin:auto 4px 12px;padding:14px 14px 12px;display:flex}.sb-trial .t{color:var(--teal-700,#0a5c52);font-size:.86rem;font-weight:800;line-height:1.45}.sb-trial .qr{border:1px solid var(--line,#e9edec);background:#fff;border-radius:12px;width:116px;height:116px;padding:5px}.sb-trial .store{background:var(--ink,#16211f);color:#fff;border-radius:10px;justify-content:center;align-items:center;gap:7px;width:100%;padding:9px 12px;font-size:.82rem;font-weight:800;transition:transform .12s;display:inline-flex}.sb-trial .store:hover{transform:translateY(-1px)}.collapsed .sb-trial{display:none}@media (max-height:760px){.sb-trial .qr{display:none}}@media (max-width:900px){.sb-trial{display:none}}.tb-getapp,.m-appbanner,.m-tabbar{display:none}.tb-head{min-width:0}.topbar .tb-chip{align-items:center;gap:6px;display:inline-flex}@media (max-width:768px){.app{grid-template-columns:1fr}.sidebar,.app-immersive .topbar,.app-immersive .m-tabbar,.app-immersive .m-appbanner{display:none!important}.topbar{gap:10px;padding:11px 14px}.topbar .tb-title{font-size:1rem}.topbar .tb-sub{font-size:.72rem}.topbar .tb-chip{display:none}.tb-getapp{background:var(--ink,#16211f);color:#fff;border-radius:var(--r-pill,999px);flex-shrink:0;align-items:center;gap:5px;padding:8px 13px;font-size:.8rem;font-weight:800;display:inline-flex}.m-appbanner{border:1.5px solid var(--teal-100,#cfe6e1);background:var(--teal-50,#e7f2ef);border-radius:14px;align-items:center;gap:11px;margin:12px 14px 0;padding:11px 12px;display:flex}.m-appbanner .ic{border-radius:9px;flex-shrink:0}.m-appbanner .tx{flex-direction:column;flex:1;min-width:0;line-height:1.32;display:flex}.m-appbanner .tx strong{color:var(--teal-700,#0a5c52);font-size:.84rem;font-weight:800}.m-appbanner .tx span{color:var(--muted,#8a938f);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.72rem;line-height:1.35;display:-webkit-box;overflow:hidden}.m-appbanner .go{background:var(--teal,#0e7c6f);color:#fff;border-radius:var(--r-pill,999px);flex-shrink:0;padding:8px 15px;font-size:.8rem;font-weight:800}.m-appbanner .cl{width:28px;height:28px;color:var(--muted,#8a938f);cursor:pointer;background:0 0;border:none;flex-shrink:0;place-items:center;padding:0;display:grid}.content{padding:16px 14px calc(80px + env(safe-area-inset-bottom,0px))}.content.wide{max-width:100%}.m-tabbar{z-index:60;background:color-mix(in srgb, var(--surface,#fff) 92%, transparent);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line,#eceeea);padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));display:flex;position:fixed;bottom:0;left:0;right:0}.m-tab{color:var(--muted,#8a938f);flex-direction:column;flex:1;align-items:center;gap:2px;min-width:0;padding:5px 0;font-weight:700;display:flex}.m-tab .ico{place-items:center;display:grid}.m-tab .lb{font-size:.66rem}.m-tab.on{color:var(--teal,#0e7c6f)}.m-tab.primary .ico{background:var(--teal,#0e7c6f);color:#fff;border:3px solid var(--page,#f5f6f3);border-radius:50%;width:46px;height:46px;margin-top:-16px;box-shadow:0 4px 12px #0e7c6f5c}.m-tab.primary .lb{color:var(--teal,#0e7c6f)}.m-tab.primary.on .ico{background:var(--teal-700,#0a5c52)}}