:root{color-scheme:light;--bg: #f7f4ee;--surface: #fffdf9;--surface-2: #efe9df;--ink: #1d1a17;--ink-2: #57504a;--muted: #8a8279;--line: #e4ddd1;--accent: #8c2f39;--accent-ink: #ffffff;--accent-soft: #f3dfe0;--gold: #b8862b;--good: #1f8a3b;--good-soft: #e2f3e6;--bad: #c43a3a;--bad-soft: #fbe6e4;--warn-soft: #fff1d6;--ring: rgba(29, 26, 23, .08);--shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 4px 16px rgba(60, 40, 20, .06);--st-new: #d8d1c6;--st-weak: #c43a3a;--st-learning: #e0a526;--st-solid: #5b8fd1;--st-mastered: #1f8a3b;--bx-0: #e4ddd1;--bx-1: #f1c9cc;--bx-2: #e09aa1;--bx-3: #c86470;--bx-4: #a83f4c;--bx-5: #7a2530;--radius: 14px;--font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #14120f;--surface: #1e1b18;--surface-2: #2a2622;--ink: #f4efe8;--ink-2: #c9c1b6;--muted: #938a7f;--line: #34302b;--accent: #d0626d;--accent-soft: #4a2227;--good-soft: #13301c;--bad-soft: #3a1818;--warn-soft: #3a2d0e;--ring: rgba(255, 255, 255, .08);--shadow: none;--st-new: #3a3530;--bx-0: #3a3530;--bx-1: #5a2e33;--bx-2: #7c3a42;--bx-3: #a44b56;--bx-4: #c8646f;--bx-5: #e58c95}}:root[data-theme=dark]{color-scheme:dark;--bg: #14120f;--surface: #1e1b18;--surface-2: #2a2622;--ink: #f4efe8;--ink-2: #c9c1b6;--muted: #938a7f;--line: #34302b;--accent: #d0626d;--accent-soft: #4a2227;--good-soft: #13301c;--bad-soft: #3a1818;--warn-soft: #3a2d0e;--ring: rgba(255, 255, 255, .08);--shadow: none;--st-new: #3a3530;--bx-0: #3a3530;--bx-1: #5a2e33;--bx-2: #7c3a42;--bx-3: #a44b56;--bx-4: #c8646f;--bx-5: 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var(--muted);display:grid;place-items:center;font-size:.8rem;flex:none}.opt.on{border-color:var(--accent);background:var(--accent-soft)}.opt.right{border-color:var(--good);background:var(--good-soft)}.opt.missed{border-color:var(--good);border-style:dashed}.opt.wrongpick{border-color:var(--bad);background:var(--bad-soft)}.grid-choice{display:grid;grid-template-columns:minmax(90px,auto) repeat(2,minmax(70px,110px));gap:6px;align-items:center;justify-content:start}.grid-head{font-size:.8rem;font-weight:700;color:var(--ink-2);text-align:center}.grid-label{font-size:.9rem;font-weight:600}.gcell{height:42px;border-radius:10px;border:1.5px solid 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14px;border-radius:12px;background:var(--surface-2);font-weight:700}.grade-badge.main{background:var(--accent);color:#fff;font-size:1.15rem}.checklist{display:flex;flex-direction:column;gap:2px}.check-row{display:flex;gap:10px;align-items:center;padding:6px 4px;border-radius:8px;cursor:pointer}.check-row:hover{background:var(--surface-2)}.check-row input{width:18px;height:18px;accent-color:var(--accent)}.qdots{display:flex;flex-wrap:wrap;gap:5px}.qdot{width:32px;height:32px;border-radius:8px;border:1.5px solid var(--line);background:var(--surface);font-size:.8rem;font-weight:700}.qdot.done{background:var(--accent-soft)}.qdot.cur{border-color:var(--accent)}.chapter-card{display:flex;flex-direction:column;gap:6px;padding:12px 14px}.ch-title{font-weight:700}.boxbar{display:flex;height:8px;border-radius:999px;overflow:hidden;gap:2px;background:var(--surface)}.bx{height:100%}.bx-0{background:var(--bx-0)}.bx-1{background:var(--bx-1)}.bx-2{background:var(--bx-2)}.bx-3{background:var(--bx-3);color:#fff}.bx-4{background:var(--bx-4);color:#fff}.bx-5{background:var(--bx-5);color:#fff}.wordlist{display:flex;flex-direction:column;padding:6px 12px}.wl-row{display:grid;grid-template-columns:minmax(140px,1fr) 2fr auto;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);color:var(--ink);align-items:baseline}.wl-row:last-child{border-bottom:0}@media (max-width: 560px){.wl-row{grid-template-columns:1fr auto}.wl-row .small{grid-column:1}}.boxdot{width:22px;height:22px;border-radius:6px;display:grid;place-items:center;font-size:.72rem;font-weight:800}.flashcard{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;width:100%}.fc-la{font-size:1.7rem;font-weight:600}.fc-de{font-size:1.2rem}.big-de{font-size:1.15rem}.boxes{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.boxcol{display:flex;flex-direction:column;align-items:center;gap:4px}.boxn{width:100%;text-align:center;padding:8px 0;border-radius:10px;font-weight:800;font-variant-numeric:tabular-nums}.chart{position:relative}.chart svg{width:100%;height:auto;display:block}.chart .bar{fill:var(--accent)}.chart .bar.hl{fill:var(--gold)}.grid-line{stroke:var(--line);stroke-width:1}.axis-line{stroke:var(--muted);stroke-width:1}.axis-text{fill:var(--muted);font-size:11px}.tooltip{position:absolute;top:0;transform:translate(-50%,-8px);background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;padding:6px 10px;font-size:.8rem;pointer-events:none;white-space:nowrap;color:var(--ink)}.yearrow{display:grid;grid-template-columns:110px 1fr 40px;gap:10px;align-items:center}.stackbar{display:flex;height:14px;gap:2px;border-radius:4px;overflow:hidden;background:var(--surface-2)}.legend{display:flex;gap:6px;flex-wrap:wrap}.sheet{background:#fff;color:#000;padding:24px;border-radius:8px}.sheet-list{padding-left:22px;display:flex;flex-direction:column;gap:14px}.sheet-stim{font-size:1.1rem;margin:4px 0}.sheet-opts{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.92rem}.sheet-line{border-bottom:1px solid #999;height:26px;max-width:420px}@media print{.no-print,.bottomnav,.topbar{display:none!important}body,html{background:#fff}main{padding:0;max-width:none}.sheet{padding:0}.page-break{page-break-before:always}.sheet-list li{break-inside:avoid}}.reader-text{gap:10px}.reader-la{font-size:1.15rem;line-height:1.9;margin:0}.reader-de{margin:0;font-style:italic;color:var(--muted);font-size:.95rem;border-left:3px solid var(--line);padding-left:10px}.tok{font:inherit;color:inherit;background:none;border:0;padding:0 1px;margin:0;border-radius:4px;cursor:pointer}.tok:hover,.tok:focus-visible{background:var(--accent-soft);outline:none}.tok sup{font-size:.6em;color:var(--accent)}.tok-gloss{text-decoration:underline dotted var(--muted);text-underline-offset:3px}.tok-new{background:var(--warn-soft)}.reader-pop{position:fixed;left:50%;transform:translate(-50%);bottom:calc(76px + env(safe-area-inset-bottom));width:min(560px,calc(100vw - 24px));max-height:45vh;overflow:auto;z-index:40;display:flex;flex-direction:column;gap:8px;box-shadow:0 8px 30px #0000002e}.reader-pop-form{font-size:1.3rem;font-weight:600}.reader-an{border-top:1px solid var(--line);padding-top:6px}.reader-notes{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:4px 16px}@media (min-width: 900px){.reader-pop{bottom:24px}}.book-section{display:flex;flex-direction:column;gap:8px}.lesson-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:var(--surface);border:1px solid var(--line);color:inherit;text-decoration:none}.lesson-row.current{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.lesson-row.later{opacity:.6}.lesson-n{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:700;background:var(--accent-soft);color:var(--accent)}.lesson-main{flex:1;min-width:0}.lesson-main .small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.plateau-row{border-style:dashed}.plateau-row .lesson-n{background:var(--warn-soft);color:var(--gold);font-size:.75rem}