:root{color-scheme:light;--bg:#edf3f8;--bg2:#dfe8f1;--panel:rgba(255,255,255,.78);--solid:#fff;--text:#122033;--muted:#65758a;--line:rgba(42,66,96,.13);--primary:#6657f5;--cyan:#22c9c3;--accent:#ff7668;--lime:#a9ea79;--warn:#ffb45e;--danger:#ff667d;--shadow:0 24px 70px rgba(33,57,88,.12);--soft:0 12px 34px rgba(33,57,88,.08);--radius:28px;--sans:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif}
:root[data-theme="dark"]{color-scheme:dark;--bg:#07111f;--bg2:#0b1728;--panel:rgba(14,29,49,.72);--solid:#142740;--text:#f4f8ff;--muted:#8ea2bd;--line:rgba(164,190,222,.14);--primary:#8b7dff;--cyan:#36e0d0;--accent:#ff8275;--lime:#b7f38c;--warn:#ffc06e;--danger:#ff7087;--shadow:0 30px 80px rgba(0,0,0,.34);--soft:0 14px 36px rgba(0,0,0,.22)}
*{box-sizing:border-box}html{min-width:320px;scroll-behavior:smooth}body{margin:0;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 8% 2%,color-mix(in srgb,var(--primary) 18%,transparent),transparent 34rem),radial-gradient(circle at 94% 24%,color-mix(in srgb,var(--cyan) 14%,transparent),transparent 30rem),var(--bg);color:var(--text);font:15px/1.55 var(--sans)}button,input,select,textarea{font:inherit;color:inherit}button{border:0;cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid color-mix(in srgb,var(--cyan) 70%,transparent);outline-offset:3px}.workspace:focus{outline:none}
.paper-noise{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}.paper-noise:before,.paper-noise:after{content:"";position:absolute;width:38vw;aspect-ratio:1;border:1px solid color-mix(in srgb,var(--primary) 18%,transparent);border-radius:44% 56% 61% 39%;opacity:.55;animation:orbit 22s ease-in-out infinite}.paper-noise:before{left:-20vw;top:18vh;box-shadow:0 0 0 70px color-mix(in srgb,var(--primary) 3%,transparent),0 0 0 140px color-mix(in srgb,var(--primary) 2%,transparent)}.paper-noise:after{right:-24vw;bottom:-18vw;border-color:color-mix(in srgb,var(--cyan) 20%,transparent);animation-delay:-9s}@keyframes orbit{50%{transform:translate3d(3vw,-2vh,0) rotate(16deg) scale(1.05)}}
.skip-link{position:fixed;left:12px;top:10px;z-index:1000;padding:10px 15px;border-radius:12px;transform:translateY(-160%);background:var(--primary);color:white}.skip-link:focus{transform:translateY(0)}.icon{display:inline-grid;width:1.25em;height:1.25em;place-items:center}.icon svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.masthead{height:78px;padding:0 clamp(18px,3.5vw,58px);position:sticky;top:0;z-index:30;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;background:color-mix(in srgb,var(--bg) 78%,transparent);border-bottom:1px solid var(--line);backdrop-filter:blur(24px) saturate(1.4)}.wordmark{justify-self:start;display:flex;align-items:center;gap:12px;padding:0;background:none;text-align:left}.wordmark-sign{position:relative;width:43px;height:43px;border-radius:14px;background:linear-gradient(145deg,var(--primary),#536eff);box-shadow:0 10px 30px color-mix(in srgb,var(--primary) 42%,transparent);overflow:hidden}.wordmark-sign:after{content:"";position:absolute;inset:8px;border:2px solid rgba(255,255,255,.72);border-radius:50%}.wordmark-sign i{position:absolute;z-index:1;left:19px;width:5px;height:5px;border-radius:50%;background:white;transform-origin:2px 13px}.wordmark-sign i:nth-child(1){top:8px}.wordmark-sign i:nth-child(2){top:19px;transform:rotate(90deg)}.wordmark-sign i:nth-child(3){top:30px;background:var(--cyan)}.wordmark b{display:block;font-size:17px;letter-spacing:.035em}.wordmark small{display:block;margin-top:1px;color:var(--muted);font-size:9px;letter-spacing:.2em}.date-stamp{justify-self:center;display:flex;align-items:center;gap:10px;color:var(--muted)}.date-stamp>span:first-child{font-size:27px;font-weight:800;color:var(--text)}.date-stamp>span:last-child{padding-left:10px;border-left:1px solid var(--line)}.date-stamp b,.date-stamp small{display:block;font-size:9px;letter-spacing:.12em;text-transform:uppercase}.mast-actions{justify-self:end;display:flex;gap:9px;align-items:center}
.round-button,.line-button,.ink-button,.tomato-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:14px;border:1px solid var(--line);transition:transform .18s,border-color .18s,background .18s,box-shadow .18s}.round-button:hover,.line-button:hover,.ink-button:hover,.tomato-button:hover{transform:translateY(-2px)}.round-button{width:44px;padding:0;border-radius:50%;background:var(--panel)}.line-button{padding:0 16px;background:var(--panel);text-decoration:none}.line-button kbd{padding:1px 6px;border:1px solid var(--line);border-radius:6px;color:var(--muted);background:var(--bg2);font-size:10px}.ink-button,.tomato-button{min-height:50px;padding:0 22px;border-color:transparent;background:linear-gradient(135deg,var(--primary),#536eff);color:white;font-weight:800;box-shadow:0 12px 28px color-mix(in srgb,var(--primary) 28%,transparent)}.tomato-button{background:linear-gradient(135deg,var(--accent),#ff9f6b);box-shadow:0 12px 28px color-mix(in srgb,var(--accent) 28%,transparent)}
.shell{width:min(1420px,calc(100% - 52px));margin:0 auto}.folio-tabs{width:max-content;min-width:620px;margin:20px auto 0;padding:6px;display:grid;grid-template-columns:repeat(5,auto);gap:4px;border:1px solid var(--line);border-radius:20px;background:var(--panel);box-shadow:var(--soft);backdrop-filter:blur(18px)}.folio-tab{min-height:44px;padding:0 18px;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;background:transparent;color:var(--muted)}.folio-tab>.icon{width:17px;height:17px}.folio-tab b{font-size:13px}.folio-tab em{min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--accent);color:white;font:700 10px/20px var(--sans);font-style:normal}.folio-tab:hover{color:var(--text);background:color-mix(in srgb,var(--primary) 8%,transparent)}.folio-tab.is-active{background:var(--solid);color:var(--primary);box-shadow:0 5px 18px color-mix(in srgb,var(--primary) 13%,transparent)}.workspace{min-height:calc(100vh - 160px);padding:clamp(42px,5vw,72px) 0 110px}.page-intro{margin:0 0 34px;display:flex;align-items:end;justify-content:space-between;gap:34px}.kicker{color:var(--cyan);font-size:11px;font-weight:900;letter-spacing:.18em;text-transform:uppercase}.page-intro h1{max-width:850px;margin:10px 0 0;font-size:clamp(42px,6vw,76px);line-height:.98;letter-spacing:-.055em}.page-intro p{width:min(400px,100%);margin:0;color:var(--muted)}
.today-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.7fr);gap:20px}.route-paper,.side-sheet,.mode-ticket,.report-sheet,.library-sheet,.review-hero,.review-stack{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);box-shadow:var(--soft);backdrop-filter:blur(18px)}.route-paper{min-height:460px;padding:clamp(28px,4vw,52px);position:relative;overflow:hidden}.route-paper:after{content:"";position:absolute;width:320px;height:320px;right:-120px;bottom:-190px;border:38px solid color-mix(in srgb,var(--primary) 11%,transparent);border-radius:50%}.route-head{position:relative;z-index:1;display:flex;align-items:start;justify-content:space-between;gap:24px}.route-head h2{max-width:620px;margin:7px 0 11px;font-size:clamp(29px,3.2vw,48px);line-height:1.06;letter-spacing:-.04em}.route-head p{margin:0;color:var(--muted)}.progress-seal{--progress:0;width:112px;aspect-ratio:1;flex:0 0 auto;position:relative;display:grid;place-items:center;border-radius:50%;background:conic-gradient(var(--cyan) calc(var(--progress)*1%),color-mix(in srgb,var(--line) 85%,transparent) 0);box-shadow:0 0 40px color-mix(in srgb,var(--cyan) 12%,transparent)}.progress-seal:before{content:"";position:absolute;inset:8px;border-radius:inherit;background:var(--solid)}.progress-seal span{position:relative;text-align:center}.progress-seal b,.progress-seal small{display:block}.progress-seal b{font-size:24px}.progress-seal small{color:var(--muted);font-size:10px}
.memory-route{margin:60px 0 48px;display:grid;grid-template-columns:repeat(3,1fr);position:relative}.memory-route:before{content:"";position:absolute;left:16%;right:16%;top:24px;height:1px;background:linear-gradient(90deg,var(--primary),var(--cyan));opacity:.55}.route-stop{position:relative;z-index:1;text-align:center}.route-stop i{width:49px;height:49px;margin:0 auto 13px;display:grid;place-items:center;border:6px solid var(--solid);border-radius:17px;background:var(--primary);color:white;font-style:normal;font-weight:900;box-shadow:0 9px 25px color-mix(in srgb,var(--primary) 24%,transparent)}.route-stop.is-ready i{background:var(--cyan)}.route-stop.is-due i{background:var(--accent)}.route-stop.is-clear i{background:#55c78b}.route-stop b,.route-stop small{display:block}.route-stop b{font-size:14px}.route-stop small{color:var(--muted);font-size:11px}.route-actions{position:relative;z-index:1;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.route-actions small{color:var(--muted)}.today-side{display:grid;gap:20px}.side-sheet{padding:26px}.sheet-title{margin-bottom:18px;padding-bottom:15px;display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line)}.sheet-title h3{margin:0;font-size:19px}.sheet-title span{color:var(--muted);font-size:12px}.sheet-title button{padding:0;background:none;color:var(--cyan);font-weight:800}.deck-note{display:grid;grid-template-columns:58px 1fr;align-items:center;gap:14px}.deck-glyph{height:62px;display:grid;place-items:center;border-radius:18px;background:linear-gradient(145deg,var(--primary),#536eff);color:white;font-size:19px;font-weight:900}.deck-note h4{margin:0 0 5px}.deck-note p{margin:0;color:var(--muted);font-size:12px}.tiny-meter{height:5px;margin-top:12px;overflow:hidden;border-radius:5px;background:var(--bg2)}.tiny-meter i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--cyan))}.forecast-list{display:grid;gap:11px}.forecast-item{min-height:43px;padding:0 12px;display:grid;grid-template-columns:8px 1fr auto;align-items:center;gap:10px;border-radius:12px;background:color-mix(in srgb,var(--solid) 50%,transparent)}.forecast-item i{width:8px;height:8px;border-radius:50%;background:#55c78b}.forecast-item:nth-child(2) i{background:var(--warn)}.forecast-item:nth-child(3) i{background:var(--danger)}.forecast-item span:last-child{font-size:17px;font-weight:900}
.mode-section{margin-top:66px}.section-heading{margin-bottom:22px;display:flex;align-items:end;justify-content:space-between;gap:24px}.section-heading h2{margin:6px 0 0;font-size:clamp(30px,3.5vw,48px);line-height:1;letter-spacing:-.04em}.section-heading p{margin:0;color:var(--muted)}.group-picker{min-height:74px;margin-bottom:18px;padding:12px 16px 12px 22px;display:flex;align-items:center;gap:20px;border:1px solid var(--line);border-radius:22px;background:var(--panel);box-shadow:var(--soft)}.group-picker>span{font-weight:800}.group-picker>div{padding:4px;display:flex;gap:4px;border-radius:14px;background:var(--bg2)}.group-picker button{width:52px;height:38px;border-radius:11px;background:transparent;color:var(--muted);font-weight:800}.group-picker button.is-active{background:var(--primary);color:white;box-shadow:0 7px 18px color-mix(in srgb,var(--primary) 30%,transparent)}.group-picker>b{margin-left:auto;color:var(--cyan);font-size:12px}.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.mode-ticket{min-height:250px;padding:22px;position:relative;overflow:hidden;text-align:left;color:var(--text);transition:transform .2s,border-color .2s,background .2s}.mode-ticket:after{content:attr(data-number);position:absolute;right:14px;bottom:5px;color:var(--muted);font-size:54px;font-weight:900;opacity:.08}.mode-ticket:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--primary) 45%,var(--line))}.mode-ticket.is-selected{border-color:var(--primary);background:linear-gradient(145deg,color-mix(in srgb,var(--primary) 20%,var(--solid)),color-mix(in srgb,var(--cyan) 7%,var(--panel)));box-shadow:0 18px 48px color-mix(in srgb,var(--primary) 17%,transparent)}.mode-ticket>.icon{width:40px;height:40px;margin-top:36px;color:var(--cyan)}.mode-ticket h3{margin:18px 0 7px;font-size:22px}.mode-ticket p{margin:0;color:var(--muted);font-size:13px}.mode-check{position:absolute;left:18px;top:17px;padding:5px 9px;border-radius:20px;background:var(--bg2);color:var(--muted);font-size:10px;font-weight:900;letter-spacing:.06em}.mode-ticket.is-selected .mode-check{background:var(--primary);color:white}.mode-launch{margin-top:16px;padding:15px 16px 15px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid var(--line);border-radius:22px;background:var(--solid);box-shadow:var(--soft)}.mode-launch>div{display:flex;align-items:center;gap:13px}.mode-launch>div>.icon{width:28px;height:28px;color:var(--primary)}.mode-launch b,.mode-launch small{display:block}.mode-launch small{color:var(--muted)}
.book-toolbar{margin-bottom:18px}.segmented{display:flex;flex-wrap:wrap;gap:7px}.segmented button{min-height:40px;padding:0 15px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--muted)}.segmented button.is-active{border-color:var(--primary);background:var(--primary);color:white}.bookcase{display:grid;gap:10px}.book-row{padding:18px 20px;display:grid;grid-template-columns:48px 1.2fr 1.5fr auto auto;align-items:center;gap:18px;border:1px solid var(--line);border-radius:20px;background:var(--panel);box-shadow:var(--soft)}.book-row.is-current{border-color:var(--primary);background:color-mix(in srgb,var(--primary) 8%,var(--panel))}.book-index{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:color-mix(in srgb,var(--book-color) 22%,transparent);color:var(--book-color);font-weight:900}.book-name h3{margin:0;font-size:16px}.book-name small,.book-description,.book-count small{color:var(--muted)}.book-description{margin:0}.book-count{font-weight:900}.review-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.review-hero,.review-stack{padding:clamp(26px,4vw,48px)}.review-hero h2{margin:12px 0;font-size:clamp(32px,4vw,56px);line-height:1.05;letter-spacing:-.04em}.review-hero p{max-width:660px;color:var(--muted)}.review-slip{width:100%;padding:14px 0;display:grid;grid-template-columns:1fr auto;gap:3px 12px;border-bottom:1px solid var(--line);background:none;text-align:left}.review-slip em{color:var(--danger);font-style:normal;font-weight:800}.review-slip small{grid-column:1/-1;color:var(--muted)}
.library-toolbar{margin-bottom:16px;display:flex;align-items:center;gap:14px}.inline-search,.search-field{min-height:50px;padding:0 16px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}.inline-search{flex:1}.inline-search input,.search-field input{width:100%;border:0;outline:0;background:transparent}.alphabet{display:flex;flex-wrap:wrap;gap:4px}.alphabet button{width:34px;height:34px;border-radius:10px;background:transparent;color:var(--muted)}.alphabet button.is-active{background:var(--primary);color:white}.library-sheet{overflow:hidden}.word-table-head,.word-line{display:grid;grid-template-columns:70px 1.1fr 2fr 110px 60px;align-items:center;gap:14px}.word-table-head{padding:14px 20px;background:color-mix(in srgb,var(--primary) 10%,var(--panel));color:var(--muted);font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.word-line{min-height:74px;padding:12px 20px;border-top:1px solid var(--line)}.word-line>span:first-child{color:var(--muted);font-size:12px}.word-line>button:nth-child(2){padding:0;background:none;color:var(--cyan);text-align:left;font-size:17px;font-weight:900}.word-meaning{color:var(--muted)}.status-chip{width:max-content;padding:5px 9px;border-radius:20px;background:var(--bg2);font-size:11px;font-weight:800}.status-chip.mastered{background:color-mix(in srgb,var(--lime) 24%,transparent);color:#5bad30}.status-chip.review{background:color-mix(in srgb,var(--danger) 20%,transparent);color:var(--danger)}.star-button{background:none;color:var(--muted);font-size:23px}.star-button.is-active{color:var(--warn)}.list-footer{padding:14px 20px;display:flex;justify-content:space-between;color:var(--muted);border-top:1px solid var(--line);font-size:12px}
.report-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.report-sheet{min-height:290px;padding:30px}.report-sheet:last-child{grid-column:1/-1;min-height:auto}.big-number{margin:10px 0;color:var(--primary);font-size:clamp(64px,8vw,110px);font-weight:900;line-height:1;letter-spacing:-.08em}.report-sheet>p{color:var(--muted)}.metric-row{margin-top:26px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.metric{padding:14px;border-radius:16px;background:var(--bg2);text-align:center}.metric b,.metric small{display:block}.metric b{font-size:22px}.metric small{color:var(--muted)}.retention-ring{--retention:0;width:150px;aspect-ratio:1;margin:16px auto;display:grid;place-items:center;position:relative;border-radius:50%;background:conic-gradient(var(--cyan) calc(var(--retention)*1%),var(--bg2) 0)}.retention-ring:before{content:"";position:absolute;inset:11px;border-radius:inherit;background:var(--solid)}.retention-ring span{position:relative;text-align:center}.retention-ring b,.retention-ring small{display:block}.retention-ring b{font-size:30px}.retention-ring small{color:var(--muted)}.heatmap{display:grid;grid-template-columns:repeat(24,1fr);gap:5px}.heat-cell{aspect-ratio:1;border-radius:4px;background:var(--bg2)}.heat-cell[data-level="1"]{background:color-mix(in srgb,var(--cyan) 28%,var(--bg2))}.heat-cell[data-level="2"]{background:color-mix(in srgb,var(--cyan) 48%,var(--bg2))}.heat-cell[data-level="3"]{background:color-mix(in srgb,var(--cyan) 72%,var(--bg2))}.heat-cell[data-level="4"]{background:var(--cyan)}
.study-room{width:100vw;max-width:none;height:100dvh;max-height:none;margin:0;padding:0;border:0;background:#07111f;color:#f5f8ff}.study-room::backdrop{background:#07111f}.study-shell{min-height:100dvh;display:grid;grid-template-rows:auto 1fr auto;background:radial-gradient(circle at 50% 36%,rgba(101,87,245,.19),transparent 38rem),radial-gradient(circle at 10% 90%,rgba(34,201,195,.1),transparent 24rem),#07111f}.study-top{min-height:82px;padding:0 clamp(16px,4vw,56px);display:grid;grid-template-columns:1fr minmax(260px,600px) 1fr;align-items:center;gap:22px;border-bottom:1px solid rgba(164,190,222,.12)}.study-top>div:first-child{display:flex;align-items:center;gap:12px;color:#8ea2bd}.study-top .round-button{border-color:rgba(164,190,222,.16);background:rgba(255,255,255,.05)}.study-progress{height:5px;position:relative;border-radius:6px;background:rgba(255,255,255,.1)}.study-progress i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#8b7dff,#36e0d0);box-shadow:0 0 18px rgba(54,224,208,.35);transition:width .3s}.study-progress span{position:absolute;left:50%;top:13px;transform:translateX(-50%);white-space:nowrap;color:#8ea2bd;font-size:11px;font-weight:800;letter-spacing:.08em}.study-count{justify-self:end;color:#8ea2bd;font-size:13px;font-weight:800}.study-stage{padding:clamp(22px,4vw,58px);display:grid;place-items:center}.question-paper{width:min(920px,100%);padding:clamp(25px,4vw,48px);border:1px solid rgba(164,190,222,.13);border-radius:30px;background:rgba(13,29,49,.72);box-shadow:0 35px 100px rgba(0,0,0,.36),inset 0 1px rgba(255,255,255,.04);backdrop-filter:blur(20px)}.study-prompt{display:flex;align-items:center;justify-content:space-between;gap:16px}.prompt-label{color:#36e0d0;font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.attempt-chip{padding:6px 10px;border-radius:16px;background:rgba(255,255,255,.06);color:#8ea2bd;font-size:10px;font-weight:800}.study-word{margin:26px 0 8px;color:#f7f9ff;text-align:center;font-size:clamp(54px,8vw,104px);line-height:.95;letter-spacing:-.055em}.phonetic{margin-bottom:34px;color:#8ea2bd;text-align:center;font-size:14px}
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.choice-option{min-height:76px;padding:13px 16px;display:grid;grid-template-columns:34px 1fr;align-items:center;gap:12px;border:1px solid rgba(164,190,222,.12);border-radius:17px;background:rgba(255,255,255,.045);color:#dce6f4;text-align:left;transition:border-color .18s,background .18s,transform .18s}.choice-option:hover:not(:disabled){transform:translateY(-2px);border-color:#8b7dff;background:rgba(139,125,255,.11)}.choice-option>span{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:rgba(255,255,255,.07);color:#8ea2bd;font-size:11px;font-weight:900}.choice-option b{font-weight:650}.choice-option.is-correct{border-color:#36e0d0;background:rgba(54,224,208,.13)}.choice-option.is-correct>span{background:#36e0d0;color:#07111f}.choice-option.is-wrong{border-color:#ff7087;background:rgba(255,112,135,.12)}.choice-option.is-wrong>span{background:#ff7087;color:white}.meaning-prompt{max-width:760px;margin:50px auto 38px;color:#f4f8ff;text-align:center;font-size:clamp(30px,5vw,56px);line-height:1.22;letter-spacing:-.035em}.answer-compose{max-width:650px;margin:0 auto;display:grid;grid-template-columns:1fr auto;gap:10px}.answer-input{min-width:0;height:58px;padding:0 18px;border:1px solid rgba(164,190,222,.19);border-radius:16px;outline:0;background:rgba(255,255,255,.055);color:white;font-size:19px}.answer-input:focus{border-color:#36e0d0;box-shadow:0 0 0 4px rgba(54,224,208,.1)}.sound-orb{width:86px;height:86px;margin:18px auto 0;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,#8b7dff,#536eff);color:white;box-shadow:0 20px 50px rgba(101,87,245,.35)}.sound-orb .icon{width:28px;height:28px}.sound-orb small{font-size:9px}.listen-word{color:#53617a;letter-spacing:.14em}.reveal-area{max-width:650px;margin:30px auto 0;padding:18px;border-radius:18px;background:rgba(255,255,255,.05);text-align:center}.reveal-area.is-correct{border:1px solid rgba(54,224,208,.45)}.reveal-area.is-wrong{border:1px solid rgba(255,112,135,.45)}.reveal-area>span{color:#8ea2bd;font-size:11px;font-weight:900;letter-spacing:.1em}.reveal-area h3{margin:5px 0;font-size:38px}.reveal-area p{margin:0;color:#8ea2bd}
.attempt-footer,.study-hint{min-height:92px;padding:14px clamp(18px,4vw,56px);display:flex;align-items:center;justify-content:center;gap:28px;border-top:1px solid rgba(164,190,222,.12);background:rgba(7,17,31,.74);backdrop-filter:blur(20px)}.attempt-footer>div{width:min(560px,55vw)}.attempt-footer b,.attempt-footer small{display:block}.attempt-footer b{font-size:15px}.attempt-footer small,.study-hint{color:#8ea2bd;font-size:11px}.attempt-footer.is-correct b{color:#36e0d0}.attempt-footer.is-wrong b{color:#ff8295}.attempt-footer .ink-button span{opacity:.6}.round-transition,.study-finished{width:min(790px,100%);text-align:center}.round-transition h2,.study-finished h2{margin:12px 0;font-size:clamp(38px,6vw,68px);line-height:1.02;letter-spacing:-.05em}.round-transition>p,.study-finished>p{max-width:620px;margin:0 auto 28px;color:#8ea2bd}.round-orbit{width:150px;height:70px;margin:0 auto 28px;position:relative;display:flex;align-items:center;justify-content:space-between}.round-orbit:before{content:"";position:absolute;left:28px;right:28px;height:2px;background:linear-gradient(90deg,#36e0d0,#8b7dff)}.round-orbit span,.round-orbit b{width:58px;height:58px;z-index:1;display:grid;place-items:center;border-radius:20px;background:#36e0d0;color:#07111f;font-size:18px}.round-orbit b{background:#8b7dff;color:white;box-shadow:0 0 35px rgba(139,125,255,.35)}.transition-stats,.finish-stats{margin:24px auto 30px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.transition-stats span,.finish-stats span{min-width:130px;padding:15px;border:1px solid rgba(164,190,222,.12);border-radius:17px;background:rgba(255,255,255,.04)}.transition-stats b,.transition-stats small,.finish-stats b,.finish-stats small{display:block}.transition-stats b,.finish-stats b{font-size:25px}.transition-stats small,.finish-stats small{color:#8ea2bd}.finish-mark{width:92px;height:92px;margin:0 auto 24px;display:grid;place-items:center;border-radius:30px;background:linear-gradient(145deg,#36e0d0,#73ec98);color:#07111f;font-size:42px;font-weight:900;box-shadow:0 18px 55px rgba(54,224,208,.28);transform:rotate(-4deg)}
.paper-dialog{width:min(760px,calc(100% - 28px));max-height:min(820px,calc(100dvh - 28px));padding:0;border:1px solid var(--line);border-radius:28px;background:var(--solid);color:var(--text);box-shadow:var(--shadow)}.paper-dialog::backdrop{background:rgba(4,10,20,.72);backdrop-filter:blur(7px)}.dialog-paper{padding:28px}.dialog-paper>header{margin-bottom:22px;display:flex;align-items:center;justify-content:space-between}.dialog-paper h2{margin:3px 0 0;font-size:30px}.search-results{max-height:520px;margin-top:12px;overflow:auto}.search-result{width:100%;padding:14px 4px;display:grid;grid-template-columns:1fr 2fr;gap:16px;border-bottom:1px solid var(--line);background:none;text-align:left}.search-result b{color:var(--primary)}.search-result span{color:var(--muted)}.word-meta,.word-actions{display:flex;align-items:center;gap:12px}.word-meta{color:var(--muted)}.word-definitions{margin:20px 0;padding:18px;border-radius:18px;background:var(--bg2)}.word-definitions p{margin:8px 0}.settings-paper>label{margin:16px 0;display:grid;grid-template-columns:1fr auto;gap:8px}.settings-paper input[type="range"]{grid-column:1/-1;width:100%;accent-color:var(--primary)}.settings-row,.settings-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.settings-row{padding:18px 0;border-top:1px solid var(--line)}.settings-actions{margin-top:20px;flex-wrap:wrap}.toggle{width:50px;height:28px;padding:3px;border-radius:16px;background:var(--bg2)}.toggle i{display:block;width:22px;height:22px;border-radius:50%;background:var(--muted);transition:transform .2s}.toggle[aria-checked="true"]{background:var(--primary)}.toggle[aria-checked="true"] i{transform:translateX(22px);background:white}.file-button input{display:none}.empty-note,.loading-sheet{min-height:240px;padding:30px;display:grid;place-items:center;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);text-align:center}.loading-dots{margin-bottom:13px;display:flex;justify-content:center;gap:6px}.loading-dots i{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:dots 1s ease-in-out infinite}.loading-dots i:nth-child(2){animation-delay:.14s}.loading-dots i:nth-child(3){animation-delay:.28s}@keyframes dots{50%{transform:translateY(-7px);opacity:.45}}.toast-stack{position:fixed;right:20px;bottom:20px;z-index:100;display:grid;gap:8px}.toast{max-width:340px;padding:13px 17px;border:1px solid var(--line);border-radius:14px;background:var(--solid);box-shadow:var(--shadow);font-weight:700}.pocket-nav{display:none}
.masthead{height:64px;grid-template-columns:1fr auto}.date-stamp{display:none}.folio-tabs{margin-top:12px}.workspace{min-height:calc(100vh - 132px);padding:34px 0 80px}.page-intro{margin-bottom:24px;align-items:center}.page-intro h1{margin-top:5px;font-size:clamp(34px,4vw,48px);line-height:1.05}.page-intro p{max-width:360px}.quick-study{width:min(1080px,100%);margin:0 auto}.quick-start-head{margin-bottom:18px;display:flex;align-items:end;justify-content:space-between;gap:20px}.quick-start-head h1{margin:0;font-size:clamp(36px,4.5vw,58px);line-height:1;letter-spacing:-.05em}.quick-start-head p{margin:9px 0 0;color:var(--muted)}.quick-start-head .line-button{flex:0 0 auto}.quick-study .group-picker{min-height:62px;margin-bottom:12px}.quick-study .mode-grid{gap:12px}.quick-study .mode-ticket{min-height:166px;padding:18px}.quick-study .mode-ticket>.icon{width:30px;height:30px;margin-top:30px}.quick-study .mode-ticket h3{margin:12px 0 3px;font-size:19px}.quick-study .mode-ticket p{font-size:12px}.quick-study .mode-launch{min-height:66px;margin-top:12px;padding:8px 10px 8px 18px}.quick-study .mode-launch .ink-button{min-width:150px}.review-hero h2{font-size:clamp(30px,3.2vw,46px)}
@media(max-width:1050px){.today-grid,.review-layout{grid-template-columns:1fr}.today-side{grid-template-columns:1fr 1fr}.mode-grid{grid-template-columns:1fr 1fr}.book-row{grid-template-columns:48px 1fr auto auto}.book-description{display:none}.library-toolbar{align-items:stretch;flex-direction:column}.alphabet{justify-content:center}}
@media(max-width:760px){body{padding-bottom:76px}.masthead{height:68px;padding:0 14px;grid-template-columns:1fr auto}.date-stamp{display:none}.wordmark-sign{width:38px;height:38px}.wordmark b{font-size:14px}.wordmark small{font-size:8px}.mast-actions .line-button span:not(.icon),.mast-actions .line-button kbd,#sound-toggle{display:none}.shell{width:min(100% - 26px,680px)}.folio-tabs{display:none}.workspace{padding:32px 0 60px}.page-intro{display:block;margin-bottom:24px}.page-intro h1{font-size:43px}.page-intro p{margin-top:14px}.today-grid{gap:12px}.route-paper{min-height:auto;padding:24px 19px}.route-head h2{font-size:29px}.progress-seal{width:78px}.progress-seal:before{inset:6px}.progress-seal b{font-size:18px}.memory-route{margin:38px 0 34px}.route-stop i{width:42px;height:42px;border-width:4px;border-radius:14px}.route-stop small{display:none}.route-actions .tomato-button{width:100%}.today-side{grid-template-columns:1fr}.mode-section{margin-top:45px}.section-heading{display:block}.section-heading p{margin-top:12px}.group-picker{padding:13px;display:grid;grid-template-columns:auto 1fr;gap:10px}.group-picker>div{justify-self:end}.group-picker button{width:38px}.group-picker>b{grid-column:1/-1;margin:0}.mode-grid{grid-template-columns:1fr}.mode-ticket{min-height:195px}.mode-launch{align-items:stretch;flex-direction:column}.mode-launch .ink-button{width:100%}.book-row{grid-template-columns:42px 1fr auto;gap:10px}.book-count{display:none}.book-row .line-button,.book-row .ink-button{grid-column:2/-1;width:100%}.report-grid{grid-template-columns:1fr}.report-sheet:last-child{grid-column:auto}.word-table-head{display:none}.word-line{grid-template-columns:45px 1fr auto}.word-meaning{grid-column:2/-1}.status-chip{grid-column:2}.word-line .star-button{grid-column:3;grid-row:1}.heatmap{grid-template-columns:repeat(12,1fr)}.pocket-nav{height:70px;padding:7px max(8px,env(safe-area-inset-left));position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(20px)}.pocket-nav button{display:grid;place-items:center;gap:1px;background:none;color:var(--muted)}.pocket-nav b{font-size:10px}.pocket-nav .icon{width:20px;height:20px}.pocket-nav button.is-active{color:var(--primary)}.pocket-nav .pocket-start{width:48px;height:48px;margin:-18px auto 0;align-self:center;border-radius:16px;background:linear-gradient(145deg,var(--primary),#536eff);color:white;box-shadow:0 13px 30px color-mix(in srgb,var(--primary) 40%,transparent)}.study-top{min-height:70px;padding:0 12px;grid-template-columns:auto 1fr auto;gap:10px}.study-top>div:first-child>span{display:none}.study-stage{padding:12px;align-items:stretch}.question-paper{padding:20px 15px;border-radius:22px;align-self:center}.study-prompt{align-items:start}.study-word{font-size:clamp(48px,16vw,72px)}.choice-grid{grid-template-columns:1fr}.choice-option{min-height:62px}.meaning-prompt{margin:34px auto 28px;font-size:31px}.answer-compose{grid-template-columns:1fr}.answer-compose .ink-button{width:100%}.attempt-footer{min-height:116px;padding:13px;flex-direction:column;gap:10px;text-align:center}.attempt-footer>div{width:100%}.attempt-footer .ink-button{width:100%}.study-hint{min-height:60px;text-align:center}.round-transition h2,.study-finished h2{font-size:39px}.finish-stats span{min-width:calc(50% - 8px)}.paper-dialog{width:calc(100% - 16px);border-radius:22px}.dialog-paper{padding:20px}}
@media(max-width:760px){
  body{padding-bottom:64px}
  .masthead{height:58px;padding:0 10px;gap:8px}
  .wordmark{gap:8px}.wordmark-sign{width:34px;height:34px;border-radius:11px}.wordmark b{font-size:13px}.wordmark small{font-size:7px;letter-spacing:.13em}
  .mast-actions{gap:5px}.mast-actions .line-button,.mast-actions .round-button{width:38px;min-height:38px;padding:0}.mast-actions .icon{width:18px;height:18px}
  .shell{width:calc(100% - 20px)}.workspace{min-height:0;padding:14px 0 70px}
  .today-view>.page-intro,.today-view>.today-grid{display:none}
  .today-view .mode-section{margin-top:0}
  .today-view .section-heading{margin-bottom:10px}.today-view .section-heading .kicker,.today-view .section-heading p{display:none}.today-view .section-heading h2{margin:0;font-size:24px;letter-spacing:-.025em}
  .today-view .group-picker{min-height:50px;margin-bottom:9px;padding:7px 8px;display:flex;gap:6px;border-radius:16px}.today-view .group-picker>span{font-size:11px;white-space:nowrap}.today-view .group-picker>div{min-width:0;flex:1;justify-self:auto;display:flex}.today-view .group-picker button{width:auto;height:32px;min-width:0;flex:1;padding:0;font-size:12px}.today-view .group-picker>b{display:none}
  .today-view .mode-grid{grid-template-columns:1fr 1fr;gap:8px}.today-view .mode-ticket{min-height:100px;padding:10px 12px;border-radius:18px}.today-view .mode-ticket:after,.today-view .mode-ticket p{display:none}.today-view .mode-ticket>.icon{width:23px;height:23px;margin-top:24px}.today-view .mode-ticket h3{margin:7px 0 0;font-size:15px}.today-view .mode-check{left:9px;top:8px;padding:3px 7px;font-size:8px}
  .today-view .mode-launch{min-height:58px;margin-top:9px;padding:7px 8px 7px 12px;align-items:center;flex-direction:row;border-radius:16px}.today-view .mode-launch>div{gap:8px}.today-view .mode-launch>div>.icon{width:21px;height:21px}.today-view .mode-launch b{font-size:12px}.today-view .mode-launch small{display:none}.today-view .mode-launch .ink-button{width:auto;min-height:42px;padding:0 15px;border-radius:12px;font-size:13px}
  .pocket-nav{height:60px;padding-top:5px;padding-bottom:max(5px,env(safe-area-inset-bottom))}.pocket-nav .pocket-start{width:44px;height:44px;margin:-15px auto 0;border-radius:14px}.pocket-nav b{font-size:9px}
  .quick-start-head{margin-bottom:10px;align-items:center}.quick-start-head h1{font-size:24px;letter-spacing:-.03em}.quick-start-head p{margin-top:3px;font-size:10px}.quick-start-head .line-button{min-height:36px;padding:0 10px;border-radius:11px;font-size:11px}
  .study-shell{height:100dvh;min-height:0;overflow:hidden}.study-top{min-height:56px}.study-progress span{top:9px;font-size:9px}.study-stage{min-height:0;padding:8px 10px}.question-paper{max-height:100%;padding:14px 12px;border-radius:18px;overflow:auto}.study-word{margin:13px 0 4px;font-size:clamp(42px,14vw,60px)}.phonetic{margin-bottom:12px}.choice-grid{gap:6px}.choice-option{min-height:52px;padding:7px 8px;grid-template-columns:28px 1fr;gap:8px;border-radius:13px;font-size:12px;line-height:1.3}.choice-option>span{width:28px;height:28px;border-radius:8px}.meaning-prompt{margin:18px auto;font-size:25px}.answer-input{height:50px}.study-hint{display:none}.attempt-footer{min-height:76px;padding:9px 10px;display:grid;grid-template-columns:1fr auto;gap:8px;text-align:left}.attempt-footer>div{width:auto}.attempt-footer small{display:none}.attempt-footer .ink-button{width:auto;min-height:44px;padding:0 15px}.round-transition h2,.study-finished h2{font-size:34px}.round-transition>p,.study-finished>p{margin-bottom:18px}.round-orbit{margin-bottom:16px}.transition-stats,.finish-stats{margin:16px auto 20px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}