:root{--bg: #f6f6fa;--surface: #ffffff;--text: #1f2033;--muted: #6b6d85;--line: #e2e3ee;--accent: #33365a;--accent-text: #ffffff;--exam: #e85d75;--off: #eceef4;--info-bg: #eaf2ff;--info-text: #1d3f72;--radius: 12px;font-family:system-ui,-apple-system,Segoe UI,PingFang HK,Microsoft JhengHei,sans-serif;color:var(--text);background:var(--bg)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #14151f;--surface: #1f2130;--text: #ecedf5;--muted: #a2a4bd;--line: #33364a;--accent: #aab0ff;--accent-text: #14151f;--exam: #ff8fa3;--off: #262838;--info-bg: #1d2a40;--info-text: #cfe0ff}}:root[data-theme=dark]{--bg: #14151f;--surface: #1f2130;--text: #ecedf5;--muted: #a2a4bd;--line: #33364a;--accent: #aab0ff;--accent-text: #14151f;--exam: #ff8fa3;--off: #262838;--info-bg: #1d2a40;--info-text: #cfe0ff}*{box-sizing:border-box}body{margin:0;background:var(--bg)}button{font:inherit}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;margin-bottom:12px}.card h2{font-size:15px;margin:0 0 8px}.muted{color:var(--muted)}.estimated{color:var(--muted);font-style:italic}.notice-warn{border:1px solid var(--exam);border-radius:var(--radius);padding:10px 12px;margin-bottom:12px;font-size:14px}.notice-info{background:var(--info-bg);color:var(--info-text);border-radius:var(--radius);padding:10px 12px;margin-bottom:12px;font-size:14px}.unofficial{text-align:center;font-size:12px;color:var(--muted);padding:8px 0 16px}.btn{background:var(--accent);color:var(--accent-text);border:0;border-radius:10px;padding:10px 16px;cursor:pointer}.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.field{display:block;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);margin:6px 0 12px;font:inherit}.page{padding:16px;max-width:560px;margin:0 auto}.lang-bar{display:flex;justify-content:flex-end;max-width:1280px;margin:0 auto;padding:8px 16px 0}.lang-switch{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--surface)}.lang-switch button{border:0;background:transparent;color:var(--muted);font:inherit;font-size:13px;padding:4px 10px;min-width:36px;cursor:pointer}.lang-switch button[aria-pressed=true]{background:var(--accent);color:var(--accent-text)}.class-list{border:0;padding:0;margin:12px 0;display:grid;gap:6px}.kid-row{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;padding:6px 0;border-top:1px solid var(--line)}.kid-row:first-of-type{border-top:0}.kid-block{padding:6px 0}.kid-block ul,.coming,.exams{margin:4px 0 8px;padding-left:18px}.kind{font-size:12px;color:var(--muted)}.week-strip{display:flex;gap:4px;margin-bottom:12px;align-items:stretch}.week-day,.week-nav{flex:1;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:10px;padding:6px 0;min-height:44px;display:flex;flex-direction:column;align-items:center;cursor:pointer;min-width:0}.week-nav{flex:0 0 28px;justify-content:center}.week-day.selected{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.week-day.today:not(.selected){border-color:var(--accent)}.wd{font-size:11px}.dn{font-weight:600}.exam-dot{font-size:10px}.month-head{display:flex;align-items:center;justify-content:space-between}.month-head button{background:none;border:0;color:var(--text);font-size:18px;cursor:pointer;min-width:44px;min-height:44px}.month-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}.cell{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:6px;padding:2px;text-align:left;display:flex;flex-direction:column;cursor:pointer;min-width:0}.month.mini .cell{min-height:30px;align-items:center;font-size:12px}.month.full .cell{min-height:72px;font-size:12px}.cell.outside{opacity:.4}.cell.off{background:var(--off);color:var(--muted)}.cell.selected{outline:2px solid var(--accent)}.cell.today .dn{color:var(--exam)}.cell-line{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.radio{display:block;padding:6px 0}.copy-link{display:flex;gap:8px;align-items:center}.copy-link .field{margin:0}.label{display:block;font-size:13px;color:var(--muted)}.label .field{color:var(--text);font-size:16px}.group{border:0;padding:0;margin:0 0 8px}.group legend{font-size:13px;color:var(--muted);padding:0}.cycle-day{display:grid;grid-template-columns:1fr 1fr;gap:10px}.link-row{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) 44px;gap:6px;align-items:center}.link-row .field{margin:4px 0}.field-error{color:var(--exam);font-size:13px;margin:-6px 0 10px}.actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}.icon-btn{background:none;border:0;color:var(--muted);font-size:22px;min-width:44px;min-height:44px;cursor:pointer}.conflict{border:1px solid var(--exam);border-radius:var(--radius);padding:10px 12px;margin-bottom:12px}.conflict ul{margin:4px 0;padding-left:18px}.event-detail h3{margin:4px 0;font-size:18px}.event-detail .details{white-space:pre-wrap}.links{padding-left:18px}.links a{color:var(--accent);word-break:break-all}.history{border-top:1px solid var(--line);margin-top:16px;padding-top:8px;font-size:14px}.history h3{font-size:14px;margin:0 0 4px}.history ul{margin:0;padding-left:18px}.day-picks{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0 10px}.day-pick{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:999px;padding:6px 10px;min-height:36px}.rules{list-style:none;margin:0 0 10px;padding:0}.rules li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px;padding:8px 0;border-top:1px solid var(--line)}.rules li:first-child{border-top:0}.row-actions{display:inline-flex;flex-wrap:wrap;gap:6px;align-items:center}.link-btn{background:none;border:0;padding:4px 6px;color:var(--accent);cursor:pointer;text-decoration:underline;font:inherit;min-height:32px}.link-btn:disabled{color:var(--muted);cursor:default}.sheet-backdrop{position:fixed;inset:0;background:#00000073;z-index:20;display:flex;align-items:flex-end;justify-content:center}.sheet{background:var(--bg);color:var(--text);width:100%;height:100dvh;overflow-y:auto;outline:none;padding:0 16px calc(16px + env(safe-area-inset-bottom));animation:sheet-up .18s ease-out}.sheet-head{position:sticky;top:0;background:var(--bg);display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:env(safe-area-inset-top);z-index:1}.sheet-head h2{font-size:17px;margin:12px 0}.entry-types{display:grid;gap:10px}.entry-types .btn{text-align:left;padding:14px 16px}.day-events{list-style:none;margin:0 0 8px;padding:0}.day-events li{padding:4px 0}@keyframes sheet-up{0%{transform:translateY(24px);opacity:0}to{transform:none;opacity:1}}@media(min-width:900px){.sheet-backdrop{align-items:center}.sheet{width:min(560px,calc(100vw - 40px));height:auto;max-height:90dvh;border-radius:var(--radius);padding:0 20px 20px}}@media(prefers-reduced-motion:reduce){.sheet{animation:none}}.card h3{font-size:14px;margin:12px 0 6px}.request{border-top:1px solid var(--line);padding:8px 0}.members{list-style:none;margin:0;padding:0}.members li{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px;padding:8px 0;border-top:1px solid var(--line)}.members li:first-child{border-top:0}.class-links{padding-left:18px}.rule-item{text-align:left}.skipped{text-decoration:line-through;color:var(--muted)}.phone-shell{min-height:100dvh;padding-bottom:calc(64px + env(safe-area-inset-bottom))}.phone-main{padding:12px 16px;max-width:640px;margin:0 auto}.tabs{position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.tabs a{flex:1;text-align:center;padding:14px 0;color:var(--muted);text-decoration:none}.tabs a.active{color:var(--accent);font-weight:600}.desktop-shell{display:grid;grid-template-columns:180px minmax(0,1fr) 320px;gap:20px;max-width:1280px;margin:0 auto;padding:20px;min-height:100dvh}.side-nav-wrap{position:sticky;top:20px;align-self:start}.side-nav-wrap .brand{font-weight:700;margin-bottom:12px}.side-nav{display:flex;flex-direction:column;gap:4px}.side-nav a{padding:10px 12px;border-radius:10px;color:var(--text);text-decoration:none}.side-nav a.active{background:var(--accent);color:var(--accent-text)}.desktop-main{min-width:0}.desktop-side{position:sticky;top:20px;align-self:start}@media(max-width:1099px){.desktop-shell{grid-template-columns:140px minmax(0,1fr) 260px;gap:14px;padding:14px}}.fab{position:fixed;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));border-radius:999px;padding:14px 20px;box-shadow:0 4px 14px #00000040;z-index:5}.add-desktop{width:100%;margin-top:12px}.fab:disabled,.add-desktop:disabled{opacity:.5;cursor:default}