:root{--bg: #f4f6f9;--card: #ffffff;--line: #e3e8ef;--brand: #c8102e;--brand-d: #a50d25;--text: #1f2733;--muted: #7b8794}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--brand);cursor:pointer}.center{min-height:100vh;display:grid;place-items:center}.muted{color:var(--muted)}.error{background:#fde8ea;color:#a50d25;padding:8px 12px;border-radius:8px;margin:8px 0}.success{background:#e7f6ec;color:#1b7a3d;padding:8px 12px;border-radius:8px;margin:8px 0}.switch{text-align:center;margin:6px 0 0;font-size:13px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 22px;box-shadow:0 1px 3px #141e320a}.card h2{margin:0 0 12px;font-size:17px}.login{width:340px;display:flex;flex-direction:column;gap:10px}.login-mark{width:56px;height:56px;align-self:center;margin-bottom:2px}.login h1{margin:0;color:var(--brand);text-align:center}.login>.muted{text-align:center;margin-top:0}label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}input,select,textarea{font:inherit;color:var(--text);padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid #cdd9ec;border-color:#b7c6df}input::placeholder,textarea::placeholder{color:#a7b0bd;opacity:1}button{font:inherit;cursor:pointer;background:var(--brand);color:#fff;border:0;padding:9px 16px;border-radius:8px;white-space:nowrap;flex-shrink:0}button:hover{background:var(--brand-d)}button:disabled{opacity:.6;cursor:default}button.primary{font-size:15px;padding:11px 20px}.topbar{display:flex;align-items:center;gap:22px;background:#131a24;padding:10px 24px;position:sticky;top:0;z-index:5;box-shadow:0 1px 8px #0a101a33}.brand{display:flex;align-items:center}.brand .logo{height:26px;display:block}.topbar 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td.locked{cursor:help}input.wide{width:100%}input.num{width:90px;text-align:right}.grp{width:100%;min-width:150px}.grp.sub{margin-top:4px;font-size:12px;color:var(--muted)}.total{text-align:right;margin-top:12px;font-size:16px}.result{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}.dl{display:inline-block;margin-right:10px;margin-top:6px;background:#fde8ea;color:var(--brand-d);border:1px solid #f3c2c9;padding:8px 14px;border-radius:8px;text-decoration:none;font-weight:600}.dl:hover{background:#f9d3d8}.dl.small{padding:4px 10px;font-size:13px}.subnav{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:4px}.subnav .tab{color:var(--text);background:#eef2f8}.subnav .tab:hover{background:#e3ebf6}.subnav .tab.active{background:var(--brand);color:#fff}.actions{display:flex;gap:6px;flex-wrap:wrap}.tablewrap{overflow-x:auto}.mini{background:#eef2f8;color:var(--text);padding:4px 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input{min-width:90px}.gen-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.gen-row .dl{margin:0}.gen-msg{margin:12px 0 0;color:#1b7a3d;font-weight:600}.intro-hint{display:flex;align-items:center;gap:10px;margin-top:6px;flex-wrap:wrap}.intro-hint .muted{font-size:12px}.learned{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}.learned summary{cursor:pointer;font-size:13px;color:var(--muted)}.lg-list{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-wrap:wrap;gap:6px}.lg-list li{display:flex;align-items:center;gap:8px;padding:5px 10px;background:#f4f6f9;border:1px solid var(--line);border-radius:8px;font-size:13px}.attach-list{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-direction:column;gap:6px}.attach-list li{display:flex;align-items:center;gap:10px;padding:6px 10px;background:#f4f6f9;border:1px solid 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