:root{--c-primary: #0f766e;--c-primary-600: #0d9488;--c-primary-700: #115e59;--c-primary-soft: #ccfbf1;--c-accent: #f59e0b;--c-sign-prev: #ffcb05;--c-sign-restr: #d32f2f;--c-sign-info: #1d4ed8;--c-sign-serv: #1d4ed8;--c-sign-tur: #6d28d9;--c-success: #16a34a;--c-success-soft: #dcfce7;--c-danger: #dc2626;--c-danger-soft: #fee2e2;--c-warn: #d97706;--c-warn-soft: #fef3c7;--c-bg: #f1f5f9;--c-surface: #ffffff;--c-surface-2: #f8fafc;--c-border: #e2e8f0;--c-text: #0f172a;--c-text-soft: #475569;--c-text-mute: #94a3b8;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--fs-xs: .75rem;--fs-sm: .875rem;--fs-base: 1rem;--fs-lg: 1.125rem;--fs-xl: 1.375rem;--fs-2xl: 1.75rem;--fs-3xl: 2.25rem;--sp-1: .25rem;--sp-2: .5rem;--sp-3: .75rem;--sp-4: 1rem;--sp-5: 1.5rem;--sp-6: 2rem;--sp-8: 3rem;--r-sm: 8px;--r-md: 14px;--r-lg: 20px;--r-full: 999px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);--shadow-md: 0 4px 12px rgba(15, 23, 42, .08), 0 2px 4px rgba(15, 23, 42, .06);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .14);--nav-h: 64px;--maxw: 980px}@media (prefers-color-scheme: dark){:root{--c-bg: #0b1120;--c-surface: #131c2e;--c-surface-2: #0f1726;--c-border: #243049;--c-text: #e8eef7;--c-text-soft: #aab6c8;--c-text-mute: #6b7a90;--c-primary-soft: #134e4a;--c-success-soft: #14331f;--c-danger-soft: #3a1414;--c-warn-soft: #3a2a0c;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .45);--shadow-lg: 0 14px 34px rgba(0, 0, 0, .55)}}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);font-size:var(--fs-base);line-height:1.5;color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{line-height:1.2;font-weight:700}button{font:inherit;color:inherit;cursor:pointer}a{color:var(--c-primary-600);text-decoration:none}img,svg{display:block;max-width:100%}ul{margin:0;padding:0;list-style:none}:focus-visible{outline:3px solid var(--c-primary-600);outline-offset:2px;border-radius:4px}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--sp-4)}.page{flex:1;padding-block:var(--sp-5) var(--sp-6)}.page__head{margin-bottom:var(--sp-5)}.page__title{font-size:var(--fs-2xl);letter-spacing:-.02em}.page__subtitle{color:var(--c-text-soft);margin-top:var(--sp-1)}.stack{display:flex;flex-direction:column;gap:var(--sp-4)}.row{display:flex;align-items:center;gap:var(--sp-3);flex-wrap:wrap}.spread{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-3)}.center-col{display:flex;flex-direction:column;align-items:center;text-align:center}.muted{color:var(--c-text-soft)}.tiny{font-size:var(--fs-xs);color:var(--c-text-mute)}.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--shadow-sm)}.card--pad{padding:var(--sp-4)}.card--lg{border-radius:var(--r-lg);padding:var(--sp-5);box-shadow:var(--shadow-md)}.badge{display:inline-flex;align-items:center;gap:.35em;font-size:var(--fs-xs);font-weight:600;padding:.25em .7em;border-radius:var(--r-full);background:var(--c-surface-2);color:var(--c-text-soft);border:1px 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ease}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{--btn-bg: var(--c-primary);--btn-fg: #fff;--btn-bd: transparent}.btn--primary:hover:not(:disabled){filter:brightness(1.06)}.btn--accent{--btn-bg: var(--c-accent);--btn-fg: #3a2a00;--btn-bd: transparent}.btn--ghost{--btn-bg: transparent}.btn--success{--btn-bg: var(--c-success);--btn-fg: #fff;--btn-bd: transparent}.btn--danger{--btn-bg: var(--c-danger);--btn-fg: #fff;--btn-bd: transparent}.btn--block{width:100%}.btn--lg{min-height:56px;font-size:var(--fs-lg)}.bar{height:10px;width:100%;background:var(--c-border);border-radius:var(--r-full);overflow:hidden}.bar__fill{height:100%;background:var(--c-primary-600);border-radius:inherit;transition:width .4s ease}.bar__fill--success{background:var(--c-success)}.bar__fill--accent{background:var(--c-accent)}.segmented{display:inline-flex;background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:var(--r-full);padding:4px;gap:4px;flex-wrap:wrap}.segmented__btn{border:none;background:transparent;border-radius:var(--r-full);padding:.4rem .9rem;font-size:var(--fs-sm);font-weight:600;color:var(--c-text-soft);min-height:40px}.segmented__btn--active{background:var(--c-primary);color:#fff}.chips{display:flex;gap:var(--sp-2);flex-wrap:wrap}.chip{border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text-soft);border-radius:var(--r-full);padding:.4rem .85rem;font-size:var(--fs-sm);font-weight:600;min-height:40px}.chip--active{background:var(--c-primary-soft);border-color:var(--c-primary-600);color:var(--c-primary-700)}.grid{display:grid;gap:var(--sp-4)}.grid--signs,.grid--stats{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.grid--menu{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.text-success{color:var(--c-success)}.text-danger{color:var(--c-danger)}.hidden{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes pop-in{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}.animate-in{animation:pop-in .22s ease both}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}.appbar{position:sticky;top:0;z-index:30;background:var(--c-surface);border-bottom:1px solid var(--c-border)}.appbar__inner{display:flex;align-items:center;justify-content:space-between;height:56px}.brand{display:inline-flex;align-items:center;gap:.5rem;font-weight:800;font-size:1.05rem;color:var(--c-text)}.appbar__nav{display:none;gap:.15rem}.appbar__link{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem .7rem;border-radius:var(--r-full);font-weight:600;font-size:.9rem;color:var(--c-text-soft)}.appbar__link--active{background:var(--c-primary-soft);color:var(--c-primary-700)}.bottomnav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:flex;background:var(--c-surface);border-top:1px solid var(--c-border);padding-bottom:env(safe-area-inset-bottom)}.bottomnav__link{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:var(--nav-h);padding:6px 2px;color:var(--c-text-mute);font-size:.62rem;font-weight:700}.bottomnav__icon{font-size:1.25rem;line-height:1}.bottomnav__link--active{color:var(--c-primary-600)}.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding-block:var(--sp-5);padding-bottom:calc(var(--nav-h) + var(--sp-5));text-align:center}.site-footer__inner{display:flex;flex-direction:column;align-items:center;gap:var(--sp-2)}.site-footer__brand{font-weight:700;font-size:var(--fs-sm);color:var(--c-text)}.site-footer__brand a{color:var(--c-primary-600);font-weight:800}.site-footer__links{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--sp-2);font-size:var(--fs-xs);color:var(--c-text-mute)}.site-footer__links a{color:var(--c-text-soft)}.site-footer__links a:hover{color:var(--c-primary-600)}@media (min-width: 768px){.appbar__inner{height:64px}.appbar__nav{display:flex}.bottomnav{display:none}.page{padding-block:var(--sp-6) var(--sp-8)}.site-footer{padding-bottom:var(--sp-5)}}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0f172a8c;display:flex;align-items:flex-end;justify-content:center}.modal__panel{position:relative;width:100%;max-width:520px;max-height:90dvh;overflow:auto;background:var(--c-surface);border-radius:var(--r-lg) var(--r-lg) 0 0;padding:1.75rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom));box-shadow:var(--shadow-lg)}.modal__close{position:absolute;top:10px;right:10px;z-index:10;width:36px;height:36px;border-radius:var(--r-full);border:1px solid var(--c-border);background:var(--c-surface);font-size:1rem}@media (min-width: 560px){.modal{align-items:center;padding:1rem}.modal__panel{border-radius:var(--r-lg)}}.hero{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-700));color:#fff;border-radius:var(--r-lg);padding:var(--sp-6) var(--sp-5)}.hero h1{font-size:var(--fs-3xl);letter-spacing:-.02em}.hero p{opacity:.92;margin-top:var(--sp-2);max-width:46ch}.menu-card{display:flex;flex-direction:column;gap:.35rem;padding:var(--sp-4);background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--shadow-sm);color:inherit;transition:transform .08s ease,box-shadow .15s ease}.menu-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.menu-card__icon{font-size:1.7rem}.menu-card__title{font-weight:800;font-size:var(--fs-lg)}.menu-card__desc{color:var(--c-text-soft);font-size:var(--fs-sm)}._card_e3odn_1{position:relative;display:flex;flex-direction:column;align-items:center;gap:.6rem;width:100%;padding:1rem .75rem .85rem;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--shadow-sm);cursor:pointer;text-align:center;color:inherit;transition:transform .08s ease,box-shadow .15s ease}._card_e3odn_1:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}._graphic_e3odn_23{width:92px;height:92px}._name_e3odn_28{font-weight:700;font-size:.92rem;line-height:1.2}._code_e3odn_34{font-size:.68rem;color:var(--c-text-mute);letter-spacing:.03em}._flag_e3odn_40{position:absolute;top:8px;right:8px;font-size:.85rem;line-height:1}._card_19cps_1{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;min-height:320px;padding:1.5rem 1.25rem;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--shadow-md);text-align:center;cursor:pointer;width:100%}._graphic_19cps_18{width:150px;height:150px}._prompt_19cps_23{color:var(--c-text-mute);font-size:.9rem}._reveal_19cps_28{display:flex;flex-direction:column;align-items:center;gap:.5rem;width:100%}._name_19cps_36{font-size:var(--fs-xl);line-height:1.2}._meaning_19cps_41{color:var(--c-text-soft)}._example_19cps_45{font-size:var(--fs-sm);color:var(--c-text-mute)}._tile_jupjf_1{position:relative;aspect-ratio:1 / 1;width:100%;padding:0;border:none;background:transparent;cursor:pointer}._tile_jupjf_1:disabled{cursor:default}._face_jupjf_14{width:100%;height:100%;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}._back_jupjf_24{background:linear-gradient(135deg,var(--c-primary-600),var(--c-primary-700));color:#fff;font-size:1.6rem}._front_jupjf_30{background:var(--c-surface);border:2px solid var(--c-border);padding:.4rem}._graphic_jupjf_36{width:82%;height:82%}._name_jupjf_42{font-weight:700;font-size:clamp(.62rem,2.6vw,.8rem);text-align:center;line-height:1.15}._matched_jupjf_49{outline:3px solid var(--c-success);outline-offset:-1px;opacity:.7}._graphicWrap_735s7_1{display:flex;justify-content:center;margin-bottom:.75rem}._question_735s7_7{font-size:var(--fs-lg);font-weight:700;line-height:1.3}._options_735s7_13{display:flex;flex-direction:column;gap:.6rem;margin-top:1rem}._option_735s7_13{display:flex;align-items:center;gap:.6rem;text-align:left;width:100%;min-height:54px;padding:.85rem 1rem;border:2px solid var(--c-border);border-radius:var(--r-md);background:var(--c-surface);font-weight:600;transition:border-color .12s ease,background .12s ease}._option_735s7_13:hover:not(:disabled){border-color:var(--c-primary-600)}._option_735s7_13:disabled{cursor:default}._selected_735s7_41{border-color:var(--c-primary-600);background:var(--c-primary-soft)}._correct_735s7_45{border-color:var(--c-success);background:var(--c-success-soft)}._wrong_735s7_49{border-color:var(--c-danger);background:var(--c-danger-soft)}._mark_735s7_53{margin-left:auto;font-weight:800;font-size:1.1rem}._explain_735s7_59{margin-top:1rem;padding:1rem;border-radius:var(--r-md);background:var(--c-surface-2);border:1px solid var(--c-border)}._explainHead_735s7_66{font-weight:800;margin-bottom:.35rem}._ref_735s7_70{margin-top:.5rem;font-size:var(--fs-xs);color:var(--c-text-mute)}._todo_735s7_75{margin-top:.5rem;font-size:var(--fs-xs);color:var(--c-warn)}