.grk{--aqua:#7fd0e7;--aqua-soft:#bfeaff;--teal:#1f6f8b;--teal-deep:#134e64;--gold:#ffc857;--gold-soft:#ffe9a8;--gold-deep:#c8811a;--cream:#fff7e1;--coral:#ff9bbd;--green:#3aa67a;--green-deep:#2f8f66;--danger:#d3455f;--ink:#0d2f3f;--slate:#5b7480;--mist:#8c9ba6;--danger-soft:#fdecef;--green-soft:#e8f6f0;--sk-base:rgba(13,47,63,0.07);--sk-gloss:rgba(255,255,255,0.65);--font-display:"Fraunces",Georgia,"Times New Roman","Noto Sans Thai","Leelawadee UI","Noto Sans Arabic","Hiragino Mincho ProN","Yu Mincho","Apple SD Gothic Neo","Malgun Gothic","PingFang SC","Microsoft YaHei","PingFang TC","Microsoft JhengHei",serif;--font-body:"Plus Jakarta Sans",system-ui,"Noto Sans Thai","Leelawadee UI","Noto Sans Arabic","Hiragino Sans","Yu Gothic","Apple SD Gothic Neo","Malgun Gothic","PingFang SC","Microsoft YaHei","PingFang TC","Microsoft JhengHei",sans-serif;--desk:var(--cream);--dot:rgba(13,47,63,0.11);--surf:#fff;--line:rgba(13,47,63,0.09);--track:rgba(13,47,63,0.08);--sh:0 12px 26px rgba(13,47,63,0.09);--field:var(--aqua-soft);--sticky:#ffe9a8;--sticky-ink:#5c4a14;--rule:rgba(31,111,139,0.09);--margin:rgba(211,69,95,0.35);font-family:var(--font-body);color:var(--ink);line-height:normal}[data-theme=dark] .grk{--ink:#e7eef1;--slate:#9eb3bc;--mist:#6f8590;--gold-soft:#4a3a14;--danger-soft:rgba(211,69,95,0.14);--green-soft:rgba(58,166,122,0.14);--sk-base:rgba(255,255,255,0.07);--sk-gloss:rgba(255,255,255,0.09);--desk:#0d222c;--dot:rgba(255,255,255,0.07);--surf:#163644;--line:rgba(255,255,255,0.1);--track:rgba(255,255,255,0.08);--sh:0 12px 26px rgba(0,0,0,0.3);--field:rgba(255,255,255,0.14);--sticky:#4a3a14;--sticky-ink:#ffe9a8;--rule:rgba(255,255,255,0.05);--margin:rgba(255,155,189,0.3)}.grk *,.grk :after,.grk :before{box-sizing:border-box}.grk :where(p,h1,h2,h3,ul){margin:0}.grk :where(button){font:inherit;color:inherit}.grk :where(a){color:var(--teal)}[data-theme=dark] .grk :where(a){color:var(--aqua)}.grk .em{display:block;flex:0 0 auto}.grk .tn-rose,.grk.tn-rose{--tone:#b02e4c;--tone-g:linear-gradient(145deg,#f7829f,#cf3f60);--tint:rgba(255,155,189,0.22)}.grk .tn-blue,.grk.tn-blue{--tone:#18607c;--tone-g:linear-gradient(145deg,#2f9cbd,#18607c);--tint:rgba(127,208,231,0.26)}.grk .tn-teal,.grk.tn-teal{--tone:#155f42;--tone-g:linear-gradient(145deg,#2e9a6c,#155f42);--tint:rgba(58,166,122,0.16)}.grk .tn-amber,.grk.tn-amber{--tone:#94580a;--tone-g:linear-gradient(145deg,#ffc857,#d18a1c);--tint:rgba(255,200,87,0.26)}.grk .tn-indigo,.grk.tn-indigo{--tone:#2f3aa3;--tone-g:linear-gradient(145deg,#5f71e3,#2a3192);--tint:rgba(111,130,240,0.16)}[data-theme=dark] .grk .tn-rose{--tone:#ffadc8}[data-theme=dark] .grk .tn-blue{--tone:#9edcee}[data-theme=dark] .grk .tn-teal{--tone:#6fd6aa}[data-theme=dark] .grk .tn-amber{--tone:#ffcf6e}[data-theme=dark] .grk .tn-indigo{--tone:#b3beff}.grk .vd-bar{gap:14px;width:100%;max-width:1180px;margin:0 auto;padding:26px 40px 8px}.grk .vd-bar,.grk .vd-bar-r{display:flex;align-items:center}.grk 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.vd-score{width:190px;height:190px;border-radius:50%;background:conic-gradient(var(--green) var(--pct),var(--track) 0);display:grid;place-items:center}.grk .vd-score span{width:156px;height:156px;border-radius:50%;background:var(--surf);display:grid;place-items:center;text-align:center;font:700 46px/1 var(--font-display)}.grk .sk{position:relative;overflow:hidden;display:block;background:var(--sk-base);border-radius:8px}.grk .sk:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,var(--sk-gloss),transparent);animation:grk-sk 1.3s ease-in-out infinite}.grk .lp-pt{animation-duration:.42s;animation-timing-function:cubic-bezier(.32,.72,0,1);animation-fill-mode:backwards}.grk .lp-pt.is-push{animation-name:grk-push}.grk .lp-pt.is-zoom{animation-name:grk-zoom;animation-duration:.52s;animation-timing-function:cubic-bezier(.34,1.3,.5,1)}@keyframes grk-push{0%{opacity:0;transform:translateX(48px)}}@keyframes 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12px}.grk .gr-formula span{padding:9px 14px;border-radius:11px;background:var(--surf);border:2px solid var(--line);font:800 14px/1 var(--font-body)}.grk .gr-formula span.v{background:var(--tone-g);border:0;padding:11px 16px;color:#fff}.grk .gr-formula em{font:800 16px/1 var(--font-body);color:var(--mist);font-style:normal}.grk .gr-ex{display:flex;align-items:center;gap:10px;padding:6px 0;font:500 18px/1.5 var(--font-display)}.grk .gr-hl{background:linear-gradient(transparent 55%,rgba(255,200,87,.55) 0);font-weight:700}.grk .gr-notes{display:grid;grid-template-columns:1fr 1fr;grid-gap:20px;gap:20px;margin-top:34px}.grk .gr-side{position:-webkit-sticky;position:sticky;top:16px;gap:16px}.grk .gr-page-sk,.grk .gr-side{display:flex;flex-direction:column}.grk .gr-page-sk{gap:18px}.grk .gr-side-card{padding:18px 20px}.grk .gr-prac-row{margin-top:12px}.grk .gr-prac-t{font:700 16px/1.2 var(--font-display)}.grk .gr-prac-s{margin-top:4px;font:700 12px/1.45 var(--font-body);color:var(--mist)}.grk 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solid var(--tone);background:transparent;color:var(--ink);outline:0;padding:2px 6px}.grk .gr-tiles{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.grk .gr-tile{padding:11px 16px;border-radius:12px;border:2px solid var(--line);background:var(--surf);font:600 19px/1 var(--font-display);cursor:pointer;box-shadow:0 3px 0 var(--line);transition:transform .12s;color:var(--ink)}.grk .gr-tile:hover:not(:disabled){transform:translateY(-2px)}.grk .gr-tile:disabled{opacity:.25;cursor:default}.grk .gr-tile.bad{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}.grk .gr-tile.ok{border-color:var(--green);background:var(--green-soft)}.grk .gr-slot{min-height:64px;flex-wrap:wrap;gap:8px;justify-content:center;padding:10px;border-radius:16px;border:2px dashed var(--line);margin-top:20px}.grk .gr-fb,.grk .gr-slot{display:flex;align-items:center}.grk .gr-fb{width:100%;max-width:760px;gap:14px;padding:16px 20px;border-radius:18px;animation:grk-rise .3s 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.gr-gap.ok{border-color:var(--green);color:var(--green-deep)}.grk .gr-gap.bad{border-color:var(--danger);color:var(--danger)}.grk .gr-slot-hint{font:700 14px/1 var(--font-body);color:var(--mist)}.grk .gr-slot.ok{border-style:solid;border-color:var(--green)}.grk .gr-slot.bad{border-style:solid;border-color:var(--danger)}.grk .gr-bank{margin-top:18px}.grk .gr-words{margin-top:22px}.grk .gr-tile.on{border-color:var(--tone,var(--teal));background:var(--tint);box-shadow:0 3px 0 var(--tone,var(--teal))}.grk .gr-tile.miss{border-color:var(--danger);border-style:dashed}.grk .gr-slot .gr-tile:disabled,.grk .gr-tile.bad:disabled,.grk .gr-tile.miss:disabled,.grk .gr-tile.ok:disabled{opacity:1}.grk .gr-tile.dim:disabled{opacity:.45}.grk .gr-sent.is-src{font-size:23px}.grk .gr-hint{margin-top:10px;font:800 13px/1.3 var(--font-body);color:var(--tone)}.grk .gr-rewrite{margin-top:20px;padding:16px;font-size:18px;text-align:center}.grk .gr-rewrite:disabled{opacity:1}.grk .gr-rewrite.ok{border-color:var(--green)}.grk .gr-rewrite.bad{border-color:var(--danger)}.grk .gr-fb-t{font:700 19px/1.2 var(--font-display)}.grk .gr-fb.ok .gr-fb-t{color:var(--green-deep)}.grk .gr-fb.bad .gr-fb-t{color:var(--danger)}[data-theme=dark] .grk .gr-fb.ok .gr-fb-t{color:#5cc99a}[data-theme=dark] .grk .gr-fb.bad .gr-fb-t{color:var(--coral)}.grk .gr-fb-a{margin-top:4px;font:700 15px/1.4 var(--font-display)}.grk .gr-fb-x{margin-top:4px;font:600 13.5px/1.5 var(--font-body);color:var(--slate)}.grk .gr-res{width:100%;padding:34px;display:flex;flex-direction:column;align-items:center;text-align:center}.grk .gr-res-msg{margin:20px 0 0;font:600 30px/1.15 var(--font-display)}.grk .gr-res-score{margin:6px 0 0;font:700 15px/1.4 var(--font-body);color:var(--slate)}.grk .gr-res-row{justify-content:center;flex-wrap:wrap;gap:10px;margin-top:22px}.grk .gr-missed{width:100%;display:flex;flex-direction:column;gap:10px}.grk .gr-missed .vd-lbl{margin-bottom:2px}.grk .gr-missed-row{padding:14px 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