:root{--bg: #f5f6f8;--panel: #ffffff;--line: #e2e5ea;--text: #1f2430;--muted: #6b7280;--accent: #2f6feb;--accent-soft: #eaf1ff;font-family:Microsoft YaHei,system-ui,-apple-system,sans-serif;font-size:14px;color:var(--text)}*{box-sizing:border-box}body{margin:0;background:var(--bg)}.layout{display:flex;height:100vh}.sidebar{width:180px;background:var(--panel);border-right:1px solid var(--line);padding:16px 0;flex-shrink:0;display:flex;flex-direction:column}.sidebar h1{font-size:15px;margin:0 16px 18px;font-weight:600}.nav-item{display:block;width:100%;text-align:left;padding:10px 16px;border:none;background:none;cursor:pointer;color:var(--text);font-size:14px}.nav-item:hover{background:var(--bg)}.nav-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.main{flex:1;overflow:auto;padding:24px 28px}.main h2{margin:0 0 4px;font-size:18px;font-weight:600}.page-head{display:flex;justify-content:space-between;align-items:flex-start}.btn.ghost{padding:6px 12px;font-size:13px;color:var(--muted)}.btn.ghost:hover{color:#b23b3b;border-color:#b23b3b}.sub{color:var(--muted);margin:0 0 20px}.toolbar{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap;align-items:center}button.btn{padding:7px 14px;border:1px solid var(--line);background:var(--panel);border-radius:6px;cursor:pointer;font-size:13px}button.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button.btn:hover{border-color:var(--accent)}.field{display:inline-flex;flex-direction:column;gap:4px;margin-right:14px}.field label{font-size:12px;color:var(--muted)}.field input,.field select{padding:6px 8px;border:1px solid var(--line);border-radius:5px;font-size:13px;background:var(--panel)}.invoice-factory-meta{display:grid;grid-template-columns:repeat(4,minmax(180px,1fr));gap:10px 14px;margin-bottom:14px}.invoice-factory-meta .field{margin:0}.invoice-factory-meta input{width:100%}@media (max-width: 900px){.invoice-factory-meta{grid-template-columns:repeat(2,minmax(180px,1fr))}}table.grid{border-collapse:collapse;width:100%;background:var(--panel);font-size:13px}table.grid th,table.grid td{border:1px solid var(--line);padding:6px 8px;text-align:left}table.grid th{background:#fafbfc;font-weight:600;white-space:nowrap}table.grid.resizable{table-layout:fixed}table.grid.resizable th{position:relative}table.grid.resizable th,table.grid.resizable td{overflow:hidden;text-overflow:ellipsis}.col-resize{position:absolute;top:0;right:-3px;width:7px;height:100%;cursor:col-resize;user-select:none;z-index:2}.col-resize:hover{background:var(--accent);opacity:.35}.readonly-cell{background:#f3f6fb;color:#333}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.modal-card{background:var(--panel);border-radius:10px;padding:18px 20px;width:420px;max-width:92vw;max-height:82vh;overflow:auto;box-shadow:0 8px 30px #0003}.field-list{border:1px solid var(--line);border-radius:6px;padding:8px 10px;margin:8px 0;max-height:46vh;overflow:auto}.field-list label{font-size:13px}.system-file-modal{width:min(760px,94vw)}.system-file-modal h3{margin:0 0 5px}.system-file-modal .sub{margin-bottom:12px}.system-file-list{max-height:52vh;overflow:auto;border:1px solid var(--line);border-radius:7px}.system-file-row{display:grid;grid-template-columns:24px minmax(0,1fr) auto;gap:8px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line);cursor:pointer}.system-file-row:last-child{border-bottom:none}.system-file-row:hover{background:#fafbfc}.system-file-main{display:grid;min-width:0;gap:4px}.system-file-main b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.system-file-main small{color:var(--muted)}.system-file-empty{padding:28px 12px;border:1px dashed var(--line);border-radius:7px;color:var(--muted);text-align:center}.system-file-actions{justify-content:flex-end;margin:14px 0 0}.mode-toggle{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}.mode-toggle button{border:none;background:var(--panel);padding:7px 14px;cursor:pointer;font-size:13px}.mode-toggle button.on{background:var(--accent);color:#fff}.subtabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:8px 0 12px}.subtabs button{border:1px solid transparent;border-bottom:none;background:none;cursor:pointer;padding:8px 14px;font-size:13px;color:var(--muted);border-radius:6px 6px 0 0;margin-bottom:-1px}.subtabs button.on{color:var(--accent);border-color:var(--line);background:var(--panel);font-weight:600}table.grid td input,table.grid td select{width:100%;border:none;background:transparent;font-size:13px;padding:2px}table.grid td input:focus{outline:1px solid var(--accent)}td.num,th.num{text-align:right}td.calc{background:#f8faf8;color:var(--muted)}.total-bar{margin-top:14px;font-size:14px}.total-bar b{font-size:16px;color:var(--accent)}.placeholder{border:1px dashed var(--line);border-radius:8px;padding:32px;color:var(--muted);text-align:center;background:var(--panel)}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px;margin-bottom:16px}.bom-status{color:var(--muted);font-size:13px}.bom-meta{display:grid;grid-template-columns:170px minmax(240px,1fr) minmax(300px,1.5fr) 190px;gap:12px}.bom-meta .field{margin:0}.bom-meta input{width:100%}.bom-warning{display:flex;flex-wrap:wrap;gap:8px 14px;margin:0 0 14px;padding:10px 12px;border:1px solid #f0c36d;border-radius:7px;background:#fff8e8;color:#76510a;font-size:12px}.bom-table-wrap{overflow:auto;max-height:56vh;margin-bottom:16px;border:1px solid var(--line);background:var(--panel)}table.bom-table{min-width:2260px}table.bom-table th{position:sticky;top:0;z-index:2}table.bom-table th:nth-child(1){width:42px}table.bom-table th:nth-child(2){width:54px}table.bom-table th:nth-child(3){width:150px}table.bom-table th:nth-child(4){width:130px}table.bom-table th:nth-child(5){width:300px}table.bom-table th:nth-child(6){width:250px}table.bom-table th:nth-child(7){width:180px}table.bom-table th:nth-child(8){width:220px}table.bom-table th:nth-child(9){width:80px}table.bom-table th:nth-child(10),table.bom-table th:nth-child(11),table.bom-table th:nth-child(12){width:100px}table.bom-table th:nth-child(13){width:120px}table.bom-table th:nth-child(14){width:140px}table.bom-table th:nth-child(15){width:180px}table.bom-table th:nth-child(16){width:58px}table.bom-table td{vertical-align:top}table.bom-table textarea{width:100%;min-height:58px;resize:vertical;border:none;background:transparent;font:inherit}table.bom-table textarea:focus{outline:1px solid var(--accent)}.bom-photo-cell{display:flex;flex-wrap:wrap;align-items:center;gap:5px;min-height:70px}.bom-photo{display:block;max-width:150px;max-height:100px;border:1px solid var(--line);border-radius:4px;object-fit:contain}.bom-photo-note{color:var(--muted);font-size:12px;max-width:150px;white-space:normal}.bom-upload{position:relative;display:inline-block;padding:4px 8px;cursor:pointer}.bom-upload input{position:absolute;inset:0;opacity:0;cursor:pointer}.bom-currency-input{display:flex;align-items:center;gap:2px}.bom-currency-input>span{color:#8a5a00;font-weight:600}.bom-order{display:flex;align-items:center;justify-content:space-between;gap:18px}.bom-order .field{margin-left:auto}@media (max-width: 1000px){.bom-meta{grid-template-columns:1fr 1fr}.bom-wide{grid-column:1 / -1}.bom-order{align-items:flex-start;flex-wrap:wrap}.bom-order .field{margin-left:0}}.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#eef4ff,#f8fafc)}.login-card{width:min(380px,calc(100vw - 40px));background:#fff;padding:32px;border-radius:14px;box-shadow:0 18px 60px #23375a29;display:grid;gap:16px}.login-card h1{margin:0;font-size:24px}.login-card p{margin:-8px 0 4px;color:var(--muted)}.login-card label{display:grid;gap:6px;font-size:14px}.login-card input{width:100%;box-sizing:border-box;padding:10px 11px;border:1px solid var(--line);border-radius:7px;font:inherit;outline:none}.login-card input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.login-card button{padding:10px 14px}.login-error{color:#b23b3b;background:#fff0f0;padding:9px 12px;border-radius:6px}.cloud-status{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;margin:-24px -24px 14px;padding:6px 12px 6px 24px;font-size:12px;background:#eef5ff;color:#315986}.cloud-status button{flex:0 0 auto;border:0;padding:0 6px;color:inherit;background:transparent;font-size:18px;line-height:20px;cursor:pointer;opacity:.72}.cloud-status button:hover{opacity:1}.cloud-status.saved{background:#effaf3;color:#237a43}.cloud-status.conflict,.cloud-status.error{background:#fff0f0;color:#b23b3b}.sidebar-account{margin-top:auto;padding:14px 16px 4px;display:grid;gap:4px;color:var(--text);border-top:1px solid var(--line)}.sidebar-account small{opacity:.72}.sidebar-account button{margin-top:6px;padding:7px;border:1px solid var(--line);border-radius:6px;color:var(--text);background:var(--bg);cursor:pointer}.sidebar-account .sidebar-save-hint{margin-top:5px;color:var(--muted)}.sidebar-account button.sidebar-save{color:#fff;border-color:var(--accent);background:var(--accent)}.sidebar-account button:disabled{cursor:not-allowed;opacity:.58}.viewer-notice{margin:0 0 14px;padding:9px 12px;border:1px solid #e6c36a;border-radius:6px;color:#76510a;background:#fff8e8}