:root{
  --blue:#1f4e79; --blue2:#2e6da4; --line:#cfd8e3; --bg:#f4f6f9;
  --head:#dfe7f1; --txt:#1c2733; --muted:#6b7888; --red:#c0392b;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC","Segoe UI",Tahoma,sans-serif;
  background:var(--bg);color:var(--txt);font-size:14px}
.topbar{position:sticky;top:0;z-index:10;background:var(--blue);color:#fff;
  display:flex;align-items:center;justify-content:space-between;padding:10px 16px;flex-wrap:wrap;gap:8px}
.brand{font-weight:700;font-size:16px}
.tabs{display:flex;gap:4px}
.tab{background:transparent;border:0;color:#cfe0f5;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:14px}
.tab.active{background:#fff;color:var(--blue);font-weight:600}
main{max-width:1180px;margin:0 auto;padding:16px}
.view-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:8px;flex-wrap:wrap}
.view-head h2{margin:0;font-size:18px}
.head-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{background:#fff;border:1px solid var(--line);padding:8px 14px;border-radius:6px;cursor:pointer;font-size:14px}
.btn:hover{border-color:var(--blue2)}
.btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn.ghost{background:#eef3fa;border-color:#cdddf0;color:var(--blue)}
.btn.danger{color:var(--red);border-color:#e0b4ae}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:8px}
table.grid{width:100%;border-collapse:collapse;min-width:680px}
table.grid th,table.grid td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:middle}
table.grid thead th{background:var(--head);color:var(--blue);font-weight:600;white-space:nowrap}
table.grid td.num,table.grid th.num{text-align:right}
table.items td{padding:2px}
table.items input,table.items select{width:100%;border:0;background:transparent;padding:6px 4px;font-size:13px}
table.items input:focus,table.items select:focus{outline:1px solid var(--blue2);background:#fff}
table.items .amount{padding:6px 8px;text-align:right;white-space:nowrap}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px;margin-bottom:14px}
.form-grid label{display:flex;flex-direction:column;font-size:12px;color:var(--muted);gap:4px}
.form-grid label.full{grid-column:1/-1}
.form-grid input,.form-grid select,.form-grid textarea{border:1px solid var(--line);border-radius:6px;
  padding:8px;font-size:14px;color:var(--txt);font-family:inherit}
.form-grid textarea{min-height:60px;resize:vertical}
.items-head{display:flex;justify-content:space-between;align-items:center;margin:6px 0;gap:8px;flex-wrap:wrap}
.items-head h3{margin:0}
.add-row{display:flex;gap:8px;flex-wrap:wrap}
.add-row select{min-width:220px;max-width:60vw;border:1px solid var(--line);border-radius:6px;padding:7px}
.edit-foot{display:flex;gap:16px;align-items:flex-start;margin:14px 0;flex-wrap:wrap}
.edit-foot .profit-card{flex:1 1 320px;margin:0;align-self:stretch}
.edit-foot .totals{flex:0 0 360px;max-width:100%;margin:0}
.totals .box{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.totals .row{display:flex;justify-content:space-between;padding:8px 12px;border-bottom:1px solid #eef0f3;font-size:14px}
.totals .row:last-child{border-bottom:0}
.totals .row.grand{background:var(--head);font-weight:700;color:var(--blue)}
.totals .row.net{background:#eaf4ea;font-weight:700;font-size:16px}
.totals .row .label{color:var(--muted)}
.totals .row.grand .label,.totals .row.net .label{color:inherit}
.search{width:100%;max-width:360px;padding:9px;border:1px solid var(--line);border-radius:6px;margin-bottom:12px}
.clause{background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin-top:14px}
.clause summary{cursor:pointer;font-weight:600;color:var(--blue)}
.clause .form-grid{margin-top:12px;border:0;padding:0}
.empty{padding:30px;text-align:center;color:var(--muted)}
.del-x{color:var(--red);border:0;background:none;cursor:pointer;font-size:16px;padding:4px 8px}
.modal[hidden]{display:none}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.modal-box{background:#fff;border-radius:10px;padding:18px;width:min(560px,100%);max-height:90vh;overflow:auto}
.modal-box h3{margin:0 0 12px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.cat-pill{font-size:11px;color:var(--blue);background:var(--head);padding:2px 6px;border-radius:4px;white-space:nowrap}

/* 移动端 */
@media(max-width:640px){
  .brand{font-size:14px}
  main{padding:10px}
  .totals .row{width:100%}
}

/* ===== 打印/PDF 版式（A4） ===== */
.print-root{background:#fff}
@media screen{ .print-root[hidden]{display:none} .print-root{display:block;max-width:900px;margin:16px auto;
  box-shadow:0 0 12px rgba(0,0,0,.15);padding:24px} }
.q-doc{color:#000;font-size:12px}
.q-top{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:3px solid var(--q-accent,#1f4e79);padding-bottom:8px}
.q-logo{font-weight:800;color:var(--q-accent,#1f4e79);font-size:18px}
.q-title{font-size:22px;font-weight:800;text-align:center;flex:1;color:var(--q-accent,#1c2733)}
.q-no{font-size:12px;font-weight:700;align-self:flex-start}
.q-parties{display:flex;justify-content:space-between;margin:10px 0;text-align:center}
.q-parties .col{flex:1}
.q-scope{width:100%;border-collapse:collapse;margin:8px 0}
.q-scope td{border:1px solid #999;padding:4px 8px}
.q-scope .k{width:30%;font-style:italic;font-weight:700;text-align:center}
.q-scope .v{text-align:center;text-decoration:underline}
.q-agree{text-align:center;margin:8px 0;font-size:11px}
.q-listtitle{text-align:center;font-weight:800;color:var(--q-accent,#1f4e79);font-size:15px;margin:8px 0 4px}
.q-table{width:100%;border-collapse:collapse;font-size:11px}
.q-table th,.q-table td{border:1px solid #888;padding:3px 5px}
.q-table thead th{background:var(--q-head,#dfe7f1);text-align:center;color:#000;line-height:1.2}
.q-table td.num{text-align:right}
.q-table td.ctr{text-align:center}
.q-sub td{background:#fff;font-weight:700}
.q-sub td.lbl{text-align:right}
.q-grand td{background:var(--q-grand,#eef1f5);font-weight:800}
.q-net td{background:var(--q-net,#eef6ee);font-weight:800;font-size:13px}
.q-notes{margin-top:14px;font-size:10px}
.q-notes .h{text-align:center;font-weight:700;margin-bottom:4px}
.q-clause{margin-top:14px;display:flex;font-size:10px;border-top:1px solid #ccc;padding-top:8px}
.q-clause .l{width:34%}.q-clause .r{width:66%}
.q-clause .l div,.q-clause .r div{padding:2px 0}
.q-valid{text-align:center;font-weight:700;margin-top:10px}
.print-actions{text-align:center;margin:14px 0}

@media print{
  .no-print,.topbar{display:none!important}
  body{background:#fff}
  .print-root{box-shadow:none;margin:0;padding:0;max-width:none}
  .print-actions{display:none}
  @page{size:A4;margin:10mm}
}

/* ===== 内部利润显示（仅填表人，不进PDF） ===== */
.internal{background:#fff8e1!important;color:#8a6d00}
table.grid thead th.internal{background:#fdecc8!important;color:#8a6d00}
td.profit-pos{color:#1a7d3c;font-weight:600}
td.profit-neg{color:#c0392b;font-weight:600}
.profit-card{margin:14px 0;border:1px solid #f0c75e;background:#fff8e1;border-radius:8px;
  padding:12px 16px;display:flex;flex-wrap:wrap;gap:14px 20px;align-items:center;align-content:flex-start}
.profit-card .tag{background:#8a6d00;color:#fff;font-size:11px;padding:3px 8px;border-radius:10px;white-space:nowrap}
.profit-card .pc{display:flex;flex-direction:column}
.profit-card .pc .k{font-size:11px;color:#8a6d00}
.profit-card .pc .v{font-size:18px;font-weight:700;color:#5c4a00}
.profit-card .pc.big .v{font-size:22px;color:#1a7d3c}
.lang-toggle{display:inline-flex;gap:0;border:1px solid var(--blue);border-radius:6px;overflow:hidden;margin-right:10px}
.lang-toggle button{border:0;background:#fff;color:var(--blue);padding:7px 14px;cursor:pointer}
.lang-toggle button.active{background:var(--blue);color:#fff}

/* 报价明细中：来自价格库的只读字段（仅数量/单价/成本可编辑） */
table.items td.ro{padding:6px 8px;color:#333;font-size:13px;background:#fafbfc}

/* ===================== 手机端优化 ===================== */
@media(max-width:640px){
  /* 防止 iOS 聚焦输入框时自动放大(字号需≥16px) */
  .form-grid input,.form-grid select,.form-grid textarea,
  table.items input,table.items select,.search,.modal-box input,.modal-box select{font-size:16px}

  /* 表单单列、操作区按钮换行 */
  .form-grid{grid-template-columns:1fr}
  .items-head{flex-direction:column;align-items:stretch}
  .add-row{flex-direction:column;align-items:stretch}
  .add-row select{min-width:0;max-width:100%;width:100%}

  /* 清单明细：每行变成卡片，免横向滚动 */
  table.items{min-width:0}
  table.items thead{display:none}
  table.items,table.items tbody{display:block}
  table.items tr{display:block;border:1px solid var(--line);border-radius:8px;margin:0 0 10px;padding:4px 10px;background:#fff}
  table.items td{display:flex;align-items:center;justify-content:space-between;gap:10px;
    border:0;border-bottom:1px dashed #eef0f3;padding:7px 0}
  table.items td:last-child{border-bottom:0;justify-content:flex-end}
  table.items td::before{content:attr(data-label);color:var(--muted);font-size:13px;white-space:nowrap}
  table.items td.ro{background:transparent;text-align:right;color:#1c2733;font-weight:500}
  table.items input,table.items select{width:62%;text-align:right;border:1px solid var(--line);border-radius:6px;background:#fff;padding:7px 8px}
  table.items td.internal{background:#fff8e1;border-radius:6px;padding-left:6px;padding-right:6px}
  table.items .amount{justify-content:space-between}
  table.items .del-x{border:1px solid #e0b4ae;border-radius:6px;padding:7px 14px}

  /* 价格库/报价单列表：横向滚动更顺滑 */
  .table-wrap{-webkit-overflow-scrolling:touch}

  /* 预览在手机上保持版式并可横向滚动 */
  .print-root{overflow-x:auto;padding:12px}
  .q-doc{min-width:720px}

  /* 利润汇总卡两列排布 */
  .profit-card{gap:12px 18px}
}

/* ===== 折叠面板 ===== */
.panel{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:14px}
.panel>summary{cursor:pointer;padding:12px 14px;font-weight:600;color:var(--blue);list-style:none;
  display:flex;align-items:center;justify-content:space-between}
.panel>summary::-webkit-details-marker{display:none}
.panel>summary::after{content:'▾';transition:transform .2s;color:var(--muted)}
.panel[open]>summary::after{transform:rotate(180deg)}
.panel>summary:hover{background:#f7f9fc}
.panel .form-grid{margin:0;border:0;border-top:1px solid var(--line);border-radius:0}
.panel .panel-body{padding:10px 14px 14px}
.panel .add-row{margin-bottom:10px}

/* ===== 用户框 / 退出 ===== */
.user-box{display:flex;align-items:center;gap:8px;margin-left:auto;color:#cfe0f5;font-size:13px}
.user-box .btn{padding:5px 10px}

/* ===== 登录 ===== */
.login-overlay{position:fixed;inset:0;background:#1f4e79;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}
.login-overlay[hidden]{display:none}
.login-box{background:#fff;border-radius:12px;padding:28px 24px;width:min(360px,100%);display:flex;flex-direction:column;gap:12px}
.login-logo{font-size:20px;font-weight:700;color:var(--blue);text-align:center}
.login-sub{font-size:13px;color:var(--muted);text-align:center;margin-bottom:6px}
.login-box input{border:1px solid var(--line);border-radius:6px;padding:11px;font-size:16px}
.login-err{color:var(--red);font-size:13px;min-height:18px;text-align:center}

/* ===== PDF 配色方案 swatch ===== */
.theme-row{display:inline-flex;align-items:center;gap:6px;margin-right:10px;flex-wrap:wrap}
.theme-row .sw{width:24px;height:24px;border-radius:50%;border:2px solid #fff;outline:1px solid #ccc;cursor:pointer}
.theme-row .sw.active{outline:2px solid #1c2733;transform:scale(1.12)}

/* ===== 使用手册 ===== */
.help{max-width:840px}
.help h3{color:var(--blue);margin:24px 0 8px;font-size:17px;border-bottom:2px solid var(--head);padding-bottom:6px;scroll-margin-top:70px}
.help h4{margin:14px 0 4px;font-size:14px;color:#1c2733}
.help p,.help li{line-height:1.75;color:#2b3440;font-size:14px}
.help ol,.help ul{padding-left:22px;margin:6px 0}
.help li{margin:3px 0}
.help .toc{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 16px;margin-bottom:8px}
.help .toc a{color:var(--blue);text-decoration:none;display:inline-block;padding:3px 14px 3px 0;font-size:13px}
.help .toc a:hover{text-decoration:underline}
.help .tip{background:#eef6ee;border-left:4px solid #1a7d3c;border-radius:0 6px 6px 0;padding:9px 14px;margin:10px 0;font-size:13px;color:#1c3b25}
.help .warn{background:#fff8e1;border-left:4px solid #d2a106;border-radius:0 6px 6px 0;padding:9px 14px;margin:10px 0;font-size:13px;color:#5c4a00}
.help kbd{background:#eef3fa;border:1px solid #cdddf0;border-radius:4px;padding:1px 6px;font-size:12px;font-family:var(--font-mono,monospace);color:var(--blue)}

/* 导出区手机提示 */
.print-hint{flex-basis:100%;font-size:12px;color:var(--muted);margin-top:8px;line-height:1.6}
.print-actions{flex-wrap:wrap}

/* PDF 底部 买卖双方签字栏 */
.q-sign{display:flex;justify-content:space-between;gap:48px;margin-top:30px}
.q-sign .col{flex:1;text-align:center}
.q-sign .ln{border-top:1px solid #333;margin:34px 10px 6px}
.q-sign .lab{font-weight:700;font-size:11px}
.q-sign .dt{font-size:10px;color:#444;margin-top:3px}

/* Logo 图片 */
.q-logo-img{max-height:48px;max-width:240px;object-fit:contain}

/* 手机端：费用区竖排 */
@media(max-width:640px){
  .edit-foot{flex-direction:column}
  .edit-foot .profit-card,.edit-foot .totals{flex:1 1 auto;width:100%}
  .q-sign{gap:24px}
}