:root{--bg: #f4f6f8;--surface: #ffffff;--surface-subtle: #f8fafc;--ink: #17212b;--muted: #647283;--line: #dbe2ea;--accent: #176b87;--accent-strong: #0f5268;--green: #1f8a5b;--amber: #b7791f;--red: #c2413a;--danger: #c2413a;--teal-soft: #e7f4f6;--green-soft: #e9f7ef;--amber-soft: #fff4db;--red-soft: #fdecea;--radius: 8px;--shadow: 0 12px 30px rgba(21, 32, 43, .08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;letter-spacing:0}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:28px}h2{margin-bottom:4px;font-size:21px}h3{margin-bottom:0;font-size:16px}.app-shell{min-height:100vh;display:grid;grid-template-columns:256px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;padding:20px 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textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #176b871f}.customer-picker{position:relative}.customer-picker-menu{position:absolute;top:calc(100% + 6px);right:0;left:0;z-index:30;max-height:260px;overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:0 18px 44px #1018202e}.customer-picker-menu button{width:100%;min-height:48px;border:0;border-bottom:1px solid var(--line);padding:8px 10px;display:grid;gap:3px;background:var(--surface);color:var(--ink);text-align:left}.customer-picker-menu button:last-child{border-bottom:0}.customer-picker-menu button:hover,.customer-picker-menu button.active{background:#eef8fa}.customer-picker-menu button span,.customer-picker-empty{color:var(--muted);font-size:12px}.customer-picker-empty{padding:12px 10px}.confirm-box{padding:18px;display:grid;gap:10px}.checkbox-grid{padding:18px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.checkbox-grid label{min-height:38px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--radius);padding:0 10px;background:var(--surface-subtle)}.entry-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.entry-row{display:grid;grid-template-columns:minmax(100px,1fr) minmax(110px,1fr) minmax(90px,.75fr);border-bottom:1px solid var(--line)}.entry-row.contract-line-row{grid-template-columns:minmax(100px,1fr) minmax(110px,1fr) minmax(110px,1fr) minmax(90px,.75fr)}.receivable-entry .entry-row{grid-template-columns:minmax(100px,1fr) minmax(76px,.7fr) minmax(110px,1fr) minmax(140px,1.1fr) minmax(72px,.55fr)}.entry-row:last-of-type{border-bottom:0}.entry-row>span,.entry-row>input,.entry-remove-button{min-width:0;min-height:38px;border:0;border-right:1px solid var(--line);padding:9px 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