*{box-sizing:border-box}:root{--brand: #1e3a5f;--brand-soft: #e8eef5;--accent: #c97c2c;--ink: #1e293b;--ink-soft: #55627a;--line: #e2e8f0;--bg: #fdfdfc;--card: #ffffff;--danger: #b91c1c;--danger-bg: #fee2e2;--radius: 10px}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif;font-size:16px;line-height:1.55;background:var(--bg);color:var(--ink);min-height:100vh;min-height:100dvh}input,select,textarea,button{font-family:inherit;font-size:16px}h1,h2,h3{line-height:1.35}.muted{color:var(--ink-soft)}.small-text{font-size:13px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 20px;padding-top:calc(10px + env(safe-area-inset-top));padding-left:calc(20px + env(safe-area-inset-left));padding-right:calc(20px + env(safe-area-inset-right));background:var(--brand);color:#fff;position:sticky;top:0;z-index:10}.app-header a{color:#fff;text-decoration:none}.brand-name{font-weight:800;font-size:18px}.app-header nav{display:flex;gap:16px;font-size:15px}.app-header nav a.active{text-decoration:underline}.user-email{font-size:13px;opacity:.85;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.container{max-width:960px;margin:0 auto;padding:20px;padding-bottom:calc(40px + env(safe-area-inset-bottom))}@media(max-width:480px){.container{padding:12px}.app-header{flex-wrap:wrap;padding:10px 12px}}.page-title{font-size:22px;margin:4px 0 16px}.section-title{font-size:17px;margin:24px 0 8px}button,.btn{display:inline-block;border:1px solid var(--brand);background:var(--brand);color:#fff;border-radius:var(--radius);padding:10px 16px;cursor:pointer;text-decoration:none}button.secondary,.btn.secondary{background:#fff;color:var(--brand)}button.danger{background:var(--danger);border-color:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}.field{margin-bottom:14px;display:flex;flex-direction:column;gap:4px}.field label{font-size:14px;color:var(--ink-soft)}.field input,.field select,.field textarea{padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.field textarea{min-height:72px;resize:vertical}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:12px}.error-msg{color:var(--danger);background:var(--danger-bg);border-radius:var(--radius);padding:10px 14px;margin-bottom:12px}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}table.excel{border-collapse:collapse;width:100%;min-width:560px;font-size:14px}table.excel th,table.excel td{border:1px solid var(--line);padding:8px 10px;text-align:left;white-space:nowrap}table.excel th{background:var(--brand-soft);position:sticky;top:0}table.excel td:first-child,table.excel th:first-child{position:sticky;left:0;background:#fff}table.excel th:first-child{background:var(--brand-soft)}table.excel tr:hover td{background:#f7faff}table.excel a{color:var(--brand)}.stage-badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:var(--brand-soft);color:var(--brand);white-space:nowrap}.due-overdue{color:var(--danger);font-weight:700}.todo-group{margin-bottom:20px}.todo-item{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.todo-item:last-child{border-bottom:none}.login-screen{text-align:center;margin-top:60px}.login-title{font-size:30px;font-weight:800;color:var(--brand)}.login-subtitle{color:var(--ink-soft);margin:8px 0 24px}.version-tag{position:fixed;right:8px;bottom:6px;font-size:11px;color:var(--ink-soft);background:#fff;padding:2px 6px;border-radius:6px;border:1px solid var(--line)}