:root{
  --bg:#F8F6F1;
  --surface:#FFFFFF;
  --surface-2:#FAF8F3;
  --line:#E7E2D6;
  --line-2:#DCD5C4;
  --ink:#1F2B3A;
  --ink-2:#2A3950;
  --muted:#7A8494;
  --faint:#A7AEBB;
  --gold:#A07A2E;
  --gold-bg:#F6EFDF;
  --green:#1F7A44;
  --green-bg:#E8F3EA;
  --blue:#8A6420;
  --blue-bg:#F6EFDF;
  --red:#C40000;
  --red-bg:#FBEAEA;
  --orange:#F08A24;
  --orange-bg:#FDF1E3;
  --purple:#6B4E8E;
  --purple-bg:#F0EAF6;
  --teal:#3D7A6A;
  --teal-bg:#E4F0EC;
  --teal-ink:#3D7A6A;
  --radius:10px;
  --shadow-s:0 1px 2px rgba(31,43,58,.05), 0 1px 1px rgba(31,43,58,.03);
  --shadow-m:0 4px 16px rgba(31,43,58,.07), 0 1px 3px rgba(31,43,58,.04);
  --shadow-l:0 12px 40px rgba(31,43,58,.09), 0 2px 6px rgba(31,43,58,.04);
  --topbar-h:58px;
}
html,body{height:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum" 1,"cv05" 1;
}/* ===== 顶栏 ===== */

.topbar{position:sticky;top:0;z-index:50;background:#FFFFFF;border-bottom:1px solid var(--line);color:var(--ink-2)}
.app-mark{background:rgba(138,100,32,.16)}
.app-mark svg{stroke:var(--blue)}/* ===== Tab 栏 ===== */

.tabsbar{background:#fff;border-bottom:1px solid var(--line)}
.tabsinner{max-width:1360px;margin:0 auto;padding:12px 24px 0;display:flex;align-items:flex-end;gap:16px}
.tabs{display:flex;gap:2px}
.tabs button{border:none;background:transparent;font-family:inherit;font-size:13.5px;color:var(--muted);
  padding:10px 18px 12px;cursor:pointer;position:relative;font-weight:500;letter-spacing:-.01em;border-radius:8px 8px 0 0;transition:.15s}
.tabs button.on::after{content:"";position:absolute;left:16px;right:16px;bottom:-1px;height:2.5px;background:var(--blue);border-radius:2px}
.tdesc{margin-left:auto;font-size:11.5px;color:var(--faint);padding-bottom:12px}/* ===== 布局 ===== */

.wrap{max-width:1360px;margin:0 auto;padding:26px 24px 80px;display:grid;grid-template-columns:380px minmax(0,1fr);gap:22px;align-items:start}
@media(max-width:1080px){.wrap{grid-template-columns:1fr;padding:20px 16px 60px}}
@media(max-width:1080px){.panel{position:static}}
.panel-head h2{font-size:14px;font-weight:620;letter-spacing:-.01em;color:var(--ink)}
.c3{grid-template-columns:1fr 1fr 1fr}/* ===== 按钮 ===== */

.btn-primary{border:none;background:var(--blue);color:#fff;border-radius:8px;padding:10px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:.15s;box-shadow:var(--shadow-s)}
.mini-btn.danger{color:var(--red);border-color:var(--red-bg)}
.mini-btn.danger:hover{background:var(--red-bg);border-color:var(--red)}

.hint{font-size:11px;color:var(--faint);line-height:1.55;margin:2px 0 12px}
.hint.b{background:var(--blue-bg);border:1px solid #C5DDF5;color:var(--blue);border-radius:8px;padding:9px 11px;line-height:1.6}/* ===== 拖拽上传区 ===== */

.dropzone{
  border:2.5px dashed var(--line-2);
  border-radius:12px;
  padding:28px 20px;
  text-align:center;
  transition:all .2s;
  cursor:pointer;
  background:var(--surface-2);
}
.dropzone:hover{border-color:var(--blue);background:var(--blue-bg)}
.dropzone.dragover{border-color:var(--orange);background:var(--orange-bg);transform:scale(1.01)}
.dropzone-icon{width:48px;height:48px;margin:0 auto 12px;border-radius:50%;background:var(--blue-bg);display:flex;align-items:center;justify-content:center}
.dropzone-icon svg{width:24px;height:24px;stroke:var(--blue);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.dropzone.dragover .dropzone-icon{background:var(--orange-bg)}
.dropzone.dragover .dropzone-icon svg{stroke:var(--orange)}
.dropzone-title{font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:4px}
.dropzone-sub{font-size:12px;color:var(--faint)}
.dropzone-formats{font-size:11px;color:var(--faint);margin-top:8px}/* ===== 已上传报价单列表 ===== */

.quote-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.quote-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);transition:.15s;
}
.quote-item:hover{border-color:var(--blue);box-shadow:var(--shadow-s)}
.quote-item-icon{width:32px;height:32px;border-radius:8px;background:var(--green-bg);display:flex;align-items:center;justify-content:center;flex:none}
.quote-item-icon svg{width:16px;height:16px;stroke:var(--green);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.quote-item-info{flex:1;min-width:0}
.quote-item-name{font-size:13px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sample-tag{display:inline-block;font-size:10px;font-weight:700;line-height:1;padding:2px 6px;border-radius:6px;background:var(--orange-bg);color:var(--gold);border:1px solid #F0D9A0;vertical-align:middle;margin-left:4px}
.sample-note{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--orange-bg);border:1px solid #F0D9A0;border-radius:10px;color:var(--ink-2);font-size:13px;margin-bottom:14px}
.sample-note b{color:var(--gold)}
.quote-item-meta{font-size:11px;color:var(--faint);margin-top:1px}
.quote-item-remove{width:28px;height:28px;border:none;background:transparent;color:var(--faint);font-size:16px;cursor:pointer;border-radius:6px;transition:.15s;flex:none}
.quote-item-remove:hover{color:var(--red);background:var(--red-bg)}/* ===== 从批次拉货 ===== */

.batch-pull{border:1.5px dashed var(--line-2);background:var(--surface-2);border-radius:10px;padding:11px 12px;margin-bottom:14px}
.bp-label{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--blue);margin-bottom:8px}
.bp-label svg{width:15px;height:15px;stroke:var(--blue);stroke-width:1.6;fill:none}
.bp-row{display:flex;gap:8px;align-items:stretch}
.batch-select{flex:1}/* ===== 箱货卡片输入 ===== */

.cargo-list{display:flex;flex-direction:column;gap:10px}
.cargo-card{
  border:1.5px solid var(--line);border-radius:10px;
  background:var(--surface);overflow:hidden;transition:.15s;
}
.cargo-card:hover{border-color:var(--blue);box-shadow:var(--shadow-s)}
.cargo-card-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 12px;background:var(--surface-2);border-bottom:1px solid var(--line);
}
.cargo-idx{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.03em}
.cargo-del{width:24px;height:24px;border:none;background:transparent;color:var(--faint);font-size:16px;line-height:1;cursor:pointer;border-radius:6px;transition:.15s}
.cargo-del:hover{color:var(--red);background:var(--red-bg)}

.cargo-fields{padding:10px 12px 6px;display:flex;flex-direction:column;gap:8px}
.cargo-field{display:flex;flex-direction:column;gap:4px}
.cargo-field label{font-size:11px;color:var(--muted);font-weight:500}
.cargo-field-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.cargo-field.sm label{font-size:10.5px}
.cell-in{
  width:100%;padding:7px 10px;font-size:13px;font-family:inherit;font-variant-numeric:tabular-nums;
  color:var(--ink);background:var(--surface);border:1.5px solid var(--line-2);
  border-radius:7px;outline:none;text-align:center;transition:.12s;
}
.cell-in:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(138,100,32,.14)}
.cell-in.fba{text-align:left;text-transform:uppercase;font-weight:600;letter-spacing:.03em}

.cargo-calc{
  display:flex;gap:10px;flex-wrap:wrap;padding:6px 12px 10px;
  font-size:10.5px;color:var(--faint);font-variant-numeric:tabular-nums;
}
.cargo-calc span{padding:2px 8px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px}
.cargo-calc .vol-heavy{color:var(--gold);background:var(--gold-bg);border-color:#F0D9A0;font-weight:600}/* 批次货来源说明 */

.cargo-meta{display:flex;align-items:center;gap:7px;flex-wrap:wrap;padding:8px 12px 0;font-size:11px}
.cm-code{font-weight:700;color:var(--ink-2);background:var(--gold-bg);border:1px solid #F0D9A0;border-radius:999px;padding:2px 9px;letter-spacing:.02em}
.cm-name{color:var(--muted);font-weight:500}
.cm-spec{color:var(--faint)}
.cm-tag{margin-left:auto;font-size:10px;font-weight:600;color:var(--blue);background:var(--blue-bg);border:1px solid #C5DDF5;border-radius:999px;padding:2px 9px;white-space:nowrap}/* ===== 结果区 ===== *//* HERO */
.hero-top{display:grid;grid-template-columns:minmax(0,1fr) 280px}
@media(max-width:860px){.hero-top{grid-template-columns:1fr}}
.badge.o{background:var(--orange);color:var(--ink-2)}
.big{font-size:42px;font-weight:660;letter-spacing:-.03em;color:var(--ink-2)}
.period-panel{border-left:1px solid var(--line);background:var(--surface-2);padding:18px 20px;display:flex;flex-direction:column;gap:10px;justify-content:center}
@media(max-width:860px){.period-panel{border-left:none;border-top:1px solid var(--line)}}
.pp-row{display:flex;align-items:center;justify-content:space-between;font-size:12.5px}
.pp-row .k{color:var(--muted)}
.pp-row .v{font-weight:600;color:var(--ink-2)}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-top:1px solid var(--line)}
.kpi.green .v{color:var(--green)}
.kpi.red .v{color:var(--red)}/* ===== 组合方案区 ===== */
.sec-head h3{font-size:13.5px;font-weight:620;letter-spacing:-.01em;color:var(--ink)}
.sec-head .sp{margin-left:auto;display:flex;gap:8px;align-items:center}
.sec-body{padding:16px 20px 20px}/* 组合信息条 */

.combo-info{font-size:12px;color:var(--muted);margin-bottom:14px;padding:8px 14px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px}
.combo-info b{color:var(--ink-2);font-weight:600}/* 警告横幅 */

.warn-banner{display:flex;align-items:flex-start;gap:10px;padding:14px 16px;background:var(--red-bg);border:1px solid #F0C0C0;border-radius:10px;margin-bottom:16px}
.warn-banner svg{width:20px;height:20px;stroke:var(--red);stroke-width:1.8;fill:none;flex:none;margin-top:1px}
.warn-content{flex:1}
.warn-title{font-size:13px;font-weight:600;color:var(--red);margin-bottom:4px}
.warn-text{font-size:12px;color:var(--muted);line-height:1.55}
.warn-codes{font-weight:600;color:var(--red)}/* 组合方案列表 */

.combo-list{display:flex;flex-direction:column;gap:12px}/* 组合方案卡片 */

.combo-card{
  position:relative;border:1.5px solid var(--line);border-radius:10px;
  background:var(--surface);overflow:hidden;transition:.2s;
}
.combo-card:hover{border-color:var(--blue);box-shadow:var(--shadow-s)}
.combo-card.lowest{border-color:var(--green);border-width:2px;background:var(--green-bg)}
.combo-card.lowest:hover{border-color:var(--green);box-shadow:0 4px 14px rgba(0,118,0,.15)}

.lowest-badge{
  position:absolute;top:-10px;right:12px;
  background:var(--green);color:#fff;font-size:10px;font-weight:700;
  padding:3px 12px;border-radius:999px;letter-spacing:.05em;
  box-shadow:0 2px 8px rgba(0,118,0,.3);z-index:1;
}/* 卡片头部（可点击） */

.combo-header{
  display:flex;align-items:center;gap:14px;padding:14px 18px;cursor:pointer;
  transition:background .15s;user-select:none;
}
.combo-header:hover{background:var(--surface-2)}
.combo-card.lowest .combo-header:hover{background:rgba(0,118,0,.04)}

.combo-rank{
  font-size:13px;font-weight:700;color:var(--faint);min-width:28px;
  font-variant-numeric:tabular-nums;
}
.combo-card.lowest .combo-rank{color:var(--green)}

.combo-total{
  font-size:26px;font-weight:700;letter-spacing:-.02em;color:var(--ink-2);
  font-variant-numeric:tabular-nums;flex:none;white-space:nowrap;
}
.combo-card.lowest .combo-total{color:var(--green)}
.combo-total .unit{font-size:13px;font-weight:500;color:var(--muted);margin-left:2px}/* 方案标题区 */

.combo-title-wrap{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}
.combo-name{
  font-size:14px;font-weight:620;color:var(--ink);letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.combo-card.lowest .combo-name{color:var(--green)}
.combo-type-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap}

.combo-tag{
  font-size:11px;font-weight:500;padding:3px 10px;border-radius:999px;
  background:var(--surface-2);color:var(--muted);border:1px solid var(--line);
  white-space:nowrap;
}
.combo-tag.type.single{background:var(--blue-bg);color:var(--blue);border-color:#C5DDF5;font-weight:600}
.combo-tag.type.multi{background:var(--orange-bg);color:var(--gold);border-color:#F0D9A0;font-weight:600}
.combo-tag.spread{background:var(--surface-2);color:var(--muted);border-color:var(--line)}
.combo-tag.groups{background:var(--surface-2);color:var(--faint);border-color:var(--line)}
.combo-tag.conv{background:var(--green-bg);color:var(--green);border-color:#BFE3C8;font-weight:600}/* Hero 方案类型标记 */

.hero-type{
  display:inline-block;font-size:10.5px;font-weight:600;padding:2px 8px;border-radius:999px;
  letter-spacing:.03em;margin-right:6px;vertical-align:1px;
}
.hero-type.single{background:var(--blue-bg);color:var(--blue)}
.hero-type.multi{background:var(--orange-bg);color:var(--gold)}

.combo-toggle{
  font-size:12px;color:var(--blue);font-weight:500;white-space:nowrap;flex:none;
  padding:4px 10px;border-radius:6px;transition:.15s;
}
.combo-toggle:hover{background:var(--blue-bg)}/* 卡片明细（可展开） */

.combo-detail{
  border-top:1px solid var(--line);padding:14px 18px;
  background:var(--surface-2);
}
.combo-card.lowest .combo-detail{background:rgba(0,118,0,.02)}/* 明细表格 */

.combo-table{
  width:100%;border-collapse:collapse;font-size:12.5px;
}
.combo-table thead th{
  text-align:left;font-size:10.5px;font-weight:600;letter-spacing:.03em;
  color:var(--faint);padding:6px 10px;border-bottom:1.5px solid var(--line);
  white-space:nowrap;text-transform:uppercase;
}
.combo-table thead th.ta-r{text-align:right}
.combo-table tbody td{
  padding:8px 10px;border-bottom:1px solid #F1F2F5;vertical-align:middle;
}
.combo-table tbody tr:hover{background:var(--surface)}
.combo-table td.fba{font-weight:700;color:var(--ink);white-space:nowrap}
.combo-table td.src{font-size:11px;color:var(--faint);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.combo-table td.ch{color:var(--ink-2);font-weight:500;max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.combo-table td.route{color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.combo-table td.transit{white-space:nowrap;color:var(--blue)}
.combo-table td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.combo-table td.cost{text-align:right;font-weight:600;color:var(--ink-2);font-variant-numeric:tabular-nums}
.combo-table tr.total-row td{
  border-bottom:none;border-top:2px solid var(--line);padding-top:10px;
  font-weight:700;font-size:13px;
}
.combo-table tr.total-row td.cost{color:var(--green);font-size:14px}
.combo-table .unknown{color:var(--faint)}/* 空状态 */

.empty-state{text-align:center;padding:48px 20px;color:var(--faint)}
.empty-state svg{width:48px;height:48px;stroke:var(--line-2);stroke-width:1.5;fill:none;stroke-linecap:round;stroke-linejoin:round;margin-bottom:12px}
.empty-state h4{font-size:15px;font-weight:600;color:var(--muted);margin-bottom:6px}
.empty-state p{font-size:12.5px;line-height:1.6;max-width:320px;margin:0 auto}/* ===== Toast ===== *//* ===== 使用说明 ===== */

.help-body{font-size:13px;color:var(--ink-2);line-height:1.75}
.help-body h4{margin:18px 0 8px;font-size:13px;color:var(--ink)}
.help-body ul{padding-left:20px}
.help-body li{margin-bottom:4px}
.help-body p{margin-bottom:8px}

.hidden{display:none !important}/* ===== 响应式 ===== */

@media(max-width:640px){
  .wrap{padding:16px 12px 50px}
  .combo-list{gap:10px}
  .hero-main{padding:18px 16px 16px}
  .period-panel{padding:14px 16px}
  .combo-header{flex-wrap:wrap;gap:8px}
  .combo-total{font-size:22px}
  .combo-table{font-size:11px}
  .combo-table td.src,.combo-table td.route{max-width:80px}
}/* ===== 后端两级优化结果 ===== */

.opt-best-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;background:linear-gradient(135deg,#0a8f4f,#0bb36a);color:#fff;border-radius:14px;padding:18px 22px;margin-bottom:16px;box-shadow:0 6px 20px rgba(10,143,79,.25)}
.opt-best-banner .ob-label{font-size:12px;opacity:.85;margin-bottom:2px}
.opt-best-banner .ob-fw{font-size:22px;font-weight:700}
.opt-best-banner .ob-right{text-align:right}
.opt-best-banner .ob-total{font-size:30px;font-weight:800;line-height:1}
.opt-best-banner .ob-meta{font-size:12px;opacity:.92;margin-top:4px}
.opt-plan{border:1px solid #e3e8ef;border-radius:12px;padding:14px 16px;margin-bottom:12px;background:#fff}
.opt-plan.best{border:2px solid #0bb36a;box-shadow:0 4px 16px rgba(11,179,106,.15)}
.opt-plan.infeasible{opacity:.6;background:#fafafa}
.op-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.op-fw{font-size:16px;font-weight:700;color:#1f2a37}
.op-cost{margin-left:auto;font-size:20px;font-weight:800;color:#0a8f4f}
.op-routes{font-size:12px;color:#6b7785;background:#f0f3f7;padding:3px 10px;border-radius:999px}
.op-tag{font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.op-tag.good{background:#0bb36a;color:#fff}
.op-tag.bad{background:#fde8e8;color:#c0392b}
.op-note{font-size:13px;color:#c0392b;margin-top:4px}
.opt-lines{width:100%;border-collapse:collapse;font-size:13px}
.opt-lines th{text-align:left;color:#6b7785;font-weight:600;padding:6px 8px;border-bottom:1px solid #eef1f5}
.opt-lines td{padding:7px 8px;border-bottom:1px solid #f4f6f9;color:#1f2a37}
.opt-lines td:nth-child(3),.opt-lines td:nth-child(4),.opt-lines td:nth-child(5){text-align:right;font-variant-numeric:tabular-nums}