:root{--bg:#f6f7f9;--card:#fff;--line:#e3e6ea;--text:#1f2328;--muted:#6b7280;--brand:#2f6feb;--brand-weak:#eaf1fe;--ok:#1a7f47;--ok-weak:#e6f4ec;--bad:#c1341c;--bad-weak:#fdeceb;--warn:#9a6700;--warn-weak:#fdf6e3;--radius:10px;--shadow:0 1px 2px #1018280f, 0 1px 3px #1018280a}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:15px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.topbar{background:var(--card);border-bottom:1px solid var(--line);z-index:10;position:sticky;top:0}.topbar-inner{align-items:center;gap:22px;max-width:1040px;height:56px;margin:0 auto;padding:0 20px;display:flex}.brand{letter-spacing:.5px;font-size:17px;font-weight:700}.nav{flex:1;gap:18px;display:flex}.nav a{color:var(--muted);border-bottom:2px solid #0000;padding:4px 0}.nav 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var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex:1;padding:18px 20px}.stat .n{font-size:30px;font-weight:700;line-height:1.2}.stat .k{color:var(--muted);font-size:13px}.stat.due .n{color:var(--brand)}.stat.new .n{color:var(--warn)}.stat.mastered .n{color:var(--ok)}.quiz-head{align-items:center;gap:14px;margin-bottom:8px;display:flex}.quiz-head .grow{font-weight:600}.progress{background:#e8ebef;border-radius:3px;height:6px;margin-bottom:22px;overflow:hidden}.progress>i{background:var(--brand);height:100%;transition:width .25s;display:block}.stem{margin:10px 0 22px;font-size:21px;font-weight:600;line-height:1.5}.stem .hint{color:var(--muted);margin-left:10px;font-size:14px;font-weight:400}.options{flex-direction:column;gap:10px;display:flex}.option{border:1px solid var(--line);cursor:pointer;text-align:left;background:#fff;border-radius:9px;align-items:center;gap:12px;width:100%;padding:13px 16px;font-size:16px;display:flex}.option:hover:not(:disabled){border-color:var(--brand);background:var(--brand-weak)}.option .idx{width:24px;height:24px;color:var(--muted);background:#f0f2f5;border-radius:6px;flex:none;justify-content:center;align-items:center;font-size:13px;font-weight:600;display:flex}.option.correct{border-color:var(--ok);background:var(--ok-weak)}.option.correct .idx{background:var(--ok);color:#fff}.option.wrong{border-color:var(--bad);background:var(--bad-weak)}.option.wrong .idx{background:var(--bad);color:#fff}.option .plus{color:var(--brand);margin-left:auto;font-size:13px}.feedback{border:1px solid;border-radius:9px;margin-top:20px;padding:15px 17px}.feedback.ok{background:var(--ok-weak);border-color:#bfe0cd}.feedback.bad{background:var(--bad-weak);border-color:#f3c6c0}.feedback.typo{background:var(--warn-weak);border-color:#ecdca6}.feedback .fb-head{align-items:center;gap:10px;margin-bottom:6px;font-weight:700;display:flex}.feedback 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var(--line);background:#fafbfc;border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;display:inline-block}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--line);padding:10px 12px}th{color:var(--muted);font-size:13px;font-weight:600}tbody tr:hover{background:#fafbfc}.tag{color:var(--muted);background:#eef1f5;border-radius:20px;padding:1px 8px;font-size:12px;display:inline-block}.tag.phrase{color:#2f5fbe;background:#eef4ff}.tag.ok{background:var(--ok-weak);color:var(--ok)}.tag.star{background:var(--warn-weak);color:var(--warn)}.bar{vertical-align:middle;gap:2px;display:inline-flex}.bar i{background:#e2e5e9;border-radius:2px;width:9px;height:9px}.bar i.on{background:var(--brand)}.filters{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.filters>*{flex:none;width:auto;min-width:130px}.filters 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var(--line);background:var(--card);border-radius:10px;align-items:center;gap:14px;padding:12px 14px;display:flex}.photo-row-doubt{border-left:4px solid var(--warn);background:var(--warn-weak)}.photo-thumb{object-fit:cover;border:1px solid var(--line);background:#f4f4f5;border-radius:6px;width:56px;height:56px}.photo-title{align-items:center;gap:8px;font-weight:600;display:flex}.badge-doubt{background:var(--warn);color:#fff;border-radius:999px;padding:1px 8px;font-size:12px;font-weight:600;display:inline-block}.pill{border-radius:999px;padding:2px 10px;font-size:12px}.pill-ok{color:#166534;background:#dcfce7}.spinner{border:2px solid var(--line);border-top-color:var(--brand);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes 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var(--brand)}.entry-dropped{opacity:.45;text-decoration:line-through}.entry-main{align-items:center;gap:8px;display:flex}.entry-text{width:34%;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.entry-meaning{flex:1}.entry-note{color:var(--muted);margin-top:4px;font-size:12px}.entry-note-doubt{color:var(--warn);font-weight:600}.notice{color:#1e3a8a;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;margin-bottom:10px;padding:8px 12px}.photo-thumb-clickable{cursor:zoom-in}.photo-thumb-clickable:hover{outline:2px solid var(--brand);outline-offset:1px}.lightbox-backdrop{z-index:60;cursor:zoom-out;background:#000000b8;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.lightbox-body{cursor:default;flex-direction:column;gap:8px;max-width:92vw;max-height:94vh;display:flex}.lightbox-imgwrap{border-radius:8px;position:relative;overflow:auto}.lightbox-imgwrap img{object-fit:contain;background:#111;max-width:90vw;max-height:84vh;display:block}.lightbox-band{pointer-events:none;background:#ffc80038;border-top:2px solid #ffaa00d9;border-bottom:2px solid #ffaa00d9;position:absolute;left:0;right:0}.lightbox-caption{color:#eee;text-align:center;font-size:13px}.meaning-chips{flex-wrap:wrap;gap:6px;display:flex}.meaning-chip{border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:999px;padding:3px 10px;font-size:13px;line-height:1.6}.meaning-chip:hover{border-color:var(--brand)}.meaning-chip-focus{background:var(--brand-weak);border-color:var(--brand);color:var(--brand);font-weight:600}