:root {
  --ink: #1f2937;
  --muted: #475569;
  --muted-light: #64748b;
  --page: #f6f7fa;
  --paper: #fff;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --brand: #a72b36;
  --brand-dark: #8e2530;
  --brand-soft: #f8ebed;
  --nav: #fff;
  --nav-hover: #f5f7fa;
  --nav-text: #475569;
  --warn: #a54322;
  --warn-soft: #fff2e8;
  --shadow: none;
  --shadow-overlay: 0 14px 32px #1724332e;
  --shadow-toast: 0 4px 14px #1724331c;
  --overlay-scrim: #1724334d;
  --round: 12px;
  --workspace-width: 1440px;
  --workspace-rail-width: 0px;
  --workspace-gutter: clamp(18px, 3vw, 44px);
  --receipt: #64748b;
  --motion-feedback: 120ms;
  --ease-ui: cubic-bezier(.2,.8,.2,1);
  font-family: Inter, "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, summary:focus-visible, .dash-chart-box:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.sidebar {
  width: min(268px, 86vw);
  visibility: hidden;
  border-right: 1px solid var(--line);
  color: var(--ink);
  padding: 22px 14px 16px;
  overflow-y: auto;
}
.sidebar.is-open { visibility: visible; box-shadow: var(--shadow-overlay); }
.brand { gap: 11px; padding-inline: 8px; margin-bottom: 24px; }
.brand-mark { border-radius: 50%; background: var(--brand-dark); color: #fff; font-weight: 680; }
.brand strong { font-size: 16px; letter-spacing: .025em; }
.brand small { color: var(--muted-light); }
.nav-group + .nav-group { margin-top: 24px; }
.nav-caption { color: var(--muted-light); letter-spacing: .03em; font-weight: 610; }
.nav-history > summary { display: flex; align-items: center; justify-content: space-between; min-height: 32px; padding-inline: 10px; list-style: none; cursor: pointer; }
.nav-history > summary::-webkit-details-marker { display: none; }
.nav-history > summary svg { width: 13px; height: 13px; }
.nav-history[open] > summary svg { transform: rotate(90deg); }
.nav-link { min-height: 44px; margin: 3px 0; border-radius: 0 7px 7px 0; font-size: 14px; }
.nav-link:hover { color: var(--ink); }
.nav-link[aria-current=page] { background: var(--brand-soft); color: var(--brand-dark); font-weight: 700; }
.nav-link[aria-current=page]::before { background: var(--brand); inset-block: 0; width: 3px; }
.sidebar-bottom { padding-top: 18px; border-color: var(--line); color: var(--muted-light); }
.local-dot { width: 6px; height: 6px; background: #378960; box-shadow: none; }
.menu-backdrop { position: fixed; inset: 0; z-index: 14; border: 0; background: var(--overlay-scrim); }
.sidebar-mobile-controls { display: flex; justify-content: flex-end; margin: -14px 0 8px; }
.sidebar-mobile-controls .icon-btn { min-width: 44px; min-height: 44px; }
.drawer-grip { position: relative; width: 44px; height: 44px; touch-action: pan-y; user-select: none; }
.drawer-grip::before { content: ''; position: absolute; inset: 19px 8px; border-radius: 999px; background: var(--line-strong); }
.workspace-access { margin-inline-start: auto; color: var(--brand-dark); font-weight: 650; white-space: nowrap; }
.workspace-access:hover { text-decoration: underline; }
.skip-link { position: fixed; z-index: 30; inset: 8px auto auto 8px; padding: 10px 14px; border-radius: 6px; background: var(--paper); color: var(--ink); }
.skip-link:not(:focus) { clip-path: inset(50%); pointer-events: none; }

.workspace { margin-inline-start: var(--workspace-rail-width); min-width: 0; }
.topbar { display: block; min-height: 0; padding: 0; background: var(--paper); }
.topbar-content {
  display: grid;
  grid-template-areas: "brand nav filters search menu";
  grid-template-columns: auto auto minmax(0, 1fr) minmax(138px, 172px) auto;
  align-items: center;
  gap: 14px;
  max-width: var(--workspace-width);
  min-height: 66px;
  padding: 0 var(--workspace-gutter);
  margin-inline: auto;
}
.topbar-brand { grid-area: brand; display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; }
.topbar-brand .brand-mark { width: 32px; height: 32px; border-radius: 9px; font-size: 17px; }
.topbar-brand strong { font-size: 14px; font-weight: 720; }
.primary-nav { grid-area: nav; display: flex; align-self: stretch; align-items: stretch; gap: 4px; position: relative; isolation: isolate; }
.primary-link {
  display: grid;
  position: relative;
  place-items: center;
  min-height: 44px;
  padding-inline: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 580;
  white-space: nowrap;
}
.primary-link:hover, .primary-link[aria-current="page"] { color: var(--ink); }
.primary-link[aria-current="page"] { font-weight: 700; color: var(--brand-dark); }
.primary-highlight { position: absolute; z-index: -1; border-radius: 9px; background: var(--brand-soft); pointer-events: none; }
.topbar-actions { grid-area: menu; display: flex; align-items: center; gap: 4px; }
.nav-toggle { width: auto; gap: 5px; padding-inline: 10px; min-height: 38px; border-color: var(--line); }
.admin-profile { display: grid; place-items: center; width: 38px; height: 38px; flex: none; border-radius: 50%; }
.admin-profile:hover { background: var(--page); }
.admin-profile img { border-radius: 50%; object-fit: cover; }
.nav-toggle.is-current { background: var(--brand-soft); color: var(--brand-dark); border-color: #e8d5d9; }
.nav-toggle svg { width: 16px; height: 16px; }
.nav-toggle span { font-size: 12px; }
.quick-search { grid-area: search; width: 100%; min-width: 0; background: var(--page); border-color: var(--line); }
.quick-search:focus-within { outline: 2px solid var(--brand); outline-offset: 2px; border-color: var(--line-strong); box-shadow: none; }
.topbar-filters { grid-area: filters; display: flex; justify-content: flex-end; align-items: center; gap: 12px; min-width: 0; }
.topbar-filter { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.topbar-filter select { min-width: 108px; border-color: var(--line-strong); padding-inline: 9px; color: var(--ink); background: var(--paper); box-shadow: none; font-weight: 620; }
.topbar-filter select:hover { border-color: var(--muted-light); }
.business-picker-control { position: relative; display: block; min-width: 0; }
.business-picker-control:has(img:not([hidden])) select { padding-inline-start: 39px; }
.business-picker-control .seller-avatar { position: absolute; inset: 50% auto auto 8px; transform: translateY(-50%); width: 23px; height: 23px; pointer-events: none; }
.seller-avatar { display: inline-block; flex: none; width: 28px; height: 28px; border-radius: 50%; object-fit: cover; vertical-align: middle; }
.seller-identity { display: inline-flex; align-items: center; gap: 7px; }
.seller-identity small { margin-inline-start: 0; }

main { max-width: var(--workspace-width); padding: 34px var(--workspace-gutter) 56px; }
.view-heading h1 { letter-spacing: -.04em; }
.btn:hover, .icon-btn:hover { background: #f8fafc; border-color: #b7c4d5; }
.btn.primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.badge.success { background: #e6f5ed; color: #186844; }
.dash-page { --dash-gap: clamp(16px, 1.75vw, 24px); display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--dash-gap); }
.dash-heading { align-items: center; margin: 0; }
.dash-heading h1 { font-size: clamp(27px, 3vw, 38px); }
.work-main-action { min-height: 42px; padding-inline: 15px; }
.dash-year { height: 35px; font-weight: 620; }

.work-metrics { display: grid; gap: var(--dash-gap); grid-template-columns: repeat(4,minmax(0,1fr)); }
.work-metric { display: grid; align-content: start; min-height: 140px; padding: clamp(15px, 2vw, 23px); }
.work-metric-label { display: flex; align-items: center; gap: 9px; min-height: 28px; }
.work-metric-label svg { width: 25px; height: 25px; color: var(--brand); }
.work-metric h2 { font-size: 14px; font-weight: 600; color: var(--muted); line-height: 1.35; }
.work-metric-value { margin-top: 9px; font-size: clamp(23px, 2.55vw, 36px); line-height: 1.15; font-weight: 730; letter-spacing: -.036em; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.work-metric-foot { margin-top: 9px; color: var(--muted-light); font-size: 12px; line-height: 1.4; }

.work-grid, .dash-analysis { display: grid; grid-template-columns: minmax(0, 2.1fr) minmax(285px, 1fr); gap: var(--dash-gap); }
.work-grid > .dash-rail { align-content: start; }
.workspace-operations { align-items: start; }
.dash-analysis { align-items: start; }
.work-tasks { display: grid; grid-template-rows: auto 1fr auto; min-height: 330px; }
.work-task-tabs { position: relative; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin-inline: 21px; border-bottom: 1px solid var(--line); }
.work-task-tabs button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 56px; padding: 0 0 2px; border: 0; color: var(--muted); background: transparent; white-space: nowrap; }
.work-task-tabs button span { font-size: 11px; font-variant-numeric: tabular-nums; background: #f1f5f9; border-radius: 5px; padding: 2px 5px; }
.work-task-tabs button[aria-pressed=true] { color: var(--brand-dark); font-weight: 700; }
.work-task-tabs button[aria-pressed=true] span { background: var(--brand-soft); }
.work-task-ink { position: absolute; inset: auto auto -1px 0; width: calc(100% / 3); height: 2px; background: var(--brand); pointer-events: none; }
.work-tasks footer { border-top: 1px solid var(--line); margin-inline: 21px; padding-block: 12px; }
.work-task-list { margin: 0; padding: 0 21px; list-style: none; }
.work-task-list li { display: grid; grid-template-columns: 55px minmax(0,1fr) auto; align-items: center; gap: 9px; padding: 10px 0; }
.work-task-list li + li { border-top: 1px solid var(--line); }
.work-task-list time, .work-task-list p { color: var(--muted-light); font-size: 12px; }
.work-task-list p { margin-top: 3px; overflow-wrap: anywhere; }
.work-task-list .table-link { overflow-wrap: anywhere; }
.work-task-list .btn { min-height: 34px; }
.work-task-loading, .work-task-empty { display: grid; justify-items: center; align-content: center; gap: 9px; text-align: center; min-height: 191px; padding: 17px; color: var(--muted-light); }
.work-task-empty > svg { width: 27px; height: 27px; color: #8192aa; }
.work-followup-timeline { margin: 0 22px 15px; padding: 0; list-style: none; }
.work-followup-timeline li { display: grid; grid-template-columns: 85px minmax(0,1fr) auto; gap: 13px; padding: 10px 0; border-top: 1px solid var(--line); }
.work-followup-timeline li time, .work-followup-timeline li span { color: var(--muted-light); font-size: 12px; }
.work-followup-timeline li p { margin-top: 4px; color: var(--muted); line-height: 1.45; overflow-wrap: anywhere; }

.dash-rail { display: grid; gap: var(--dash-gap); }
.dash-page .card-head { padding: 20px clamp(15px, 2vw, 23px) 13px; }
.dash-page .card-head h2 { font-size: 17px; }
.dash-page .card-head p { font-size: 12px; }

.work-trend-summary { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 12px; padding: 0 clamp(15px, 2vw, 23px) 5px; color: var(--muted); }
.work-trend-summary strong { margin-left: 4px; color: var(--ink); font-size: 16px; }
.work-trend-summary small { margin-left: 6px; }
.dash-legend { display: flex; flex-wrap: wrap; gap: 7px 12px; font-size: 12px; color: var(--muted); }
.dash-legend span { display: flex; gap: 5px; align-items: center; white-space: nowrap; }
.dash-legend i { width: 9px; height: 9px; border-radius: 2px; background: var(--brand); }
.dash-legend span + span i { background: var(--receipt); }
.dash-chart-box { padding: 4px 15px 6px; overflow: auto; }
.dash-chart-box svg { width: 100%; height: auto; min-width: 420px; display: block; }
.dash-chart-axis { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.dash-chart-axis.is-future { fill: #8190a5; }
.dash-chart-grid { stroke: #e7edf4; stroke-width: 1; }
.dash-chart-grid.is-baseline { stroke: #cbd5e1; }
.dash-chart-order { fill: var(--brand); }
.dash-chart-order:hover { fill: var(--brand-dark); }
.dash-chart-line { fill: none; stroke: var(--receipt); stroke-width: 2; }
.dash-chart-dot { fill: #fff; stroke: var(--receipt); stroke-width: 1.7; }
.dash-months { border-top: 1px solid var(--line); }
.dash-months summary { margin: 0; padding: 12px clamp(15px, 2vw, 23px); font-size: 13px; }
.dash-months .dash-month-table { min-width: 400px; }
.dash-owner:hover strong { color: var(--brand); text-decoration: underline; }
.dash-owner-list { display: grid; gap: 10px; margin: 0; padding: 0 clamp(15px, 2vw, 23px) 16px; list-style: none; }
.dash-owner { display: grid; gap: 5px; }
.dash-owner-line { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; font-size: 12px; }
.dash-owner-line span { white-space: nowrap; font-variant-numeric: tabular-nums; }
.dash-owner-line small { margin-left: 7px; color: var(--muted-light); }
.dash-owner-bar { height: 3px; background: #edf1f5; border-radius: 3px; overflow: hidden; }
.dash-owner-bar i { display: block; height: 100%; border-radius: inherit; background: #8596ae; }
.dash-owner-list li:first-child i { background: var(--brand); }
.dash-recent { overflow: hidden; }
.dash-recent .section-link svg { margin-left: 4px; width: 15px; }
.dash-recent .data-table th, .dash-month-table th { background: #f8fafc; color: var(--muted); }
.dash-recent .data-table tr:hover td, .dash-month-table tr:hover td { background: #fafbfd; }
.dash-recent .data-table td, .dash-month-table td { border-color: var(--line); }

@media (prefers-reduced-motion: no-preference) {
  .work-task-ink[data-move] { transition: transform 140ms var(--ease-ui); }
  .btn { transition: background-color var(--motion-feedback) var(--ease-ui), color var(--motion-feedback) var(--ease-ui), border-color var(--motion-feedback) var(--ease-ui), opacity var(--motion-feedback) var(--ease-ui); }
  dialog.crm-dialog[open] { animation: crm-dialog-in var(--motion-feedback) var(--ease-ui) both; }
}
@keyframes crm-dialog-in { from { opacity: .75; } to { opacity: 1; } }

@media (max-width: 1240px) {
  .topbar-content {
    grid-template-areas: "brand nav search menu" "filters filters filters filters";
    grid-template-columns: auto minmax(0, 1fr) minmax(140px, 180px) auto;
    gap: 0 14px;
  }
  .primary-nav { min-height: 58px; }
  .topbar-filters { border-top: 1px solid var(--line); padding-block: 8px; }
}

@media (min-width: 1120px) {
  :root {
    --workspace-rail-width: 204px;
    --workspace-gutter: clamp(20px, 2.1vw, 34px);
  }
  .sidebar {
    width: var(--workspace-rail-width);
    visibility: visible;
    padding: 14px 12px 16px;
    box-shadow: none;
  }
  .sidebar .brand { min-height: 36px; gap: 9px; margin-bottom: 20px; }
  .sidebar .brand-mark { width: 34px; height: 34px; border-radius: 9px; font-size: 17px; }
  .sidebar .brand strong { font-size: 15px; letter-spacing: 0; }
  .sidebar-mobile-controls, .sidebar-bottom, .topbar-brand, .primary-nav, .nav-toggle { display: none; }
  .sidebar .nav-group + .nav-group { margin-top: 17px; }
  .sidebar .nav-caption { padding: 0 10px 5px; font-size: 11px; letter-spacing: 0; }
  .sidebar .nav-link { min-height: 39px; gap: 9px; margin: 2px 0; padding: 7px 10px; border-radius: 7px; font-size: 13px; }
  .sidebar .nav-link svg { flex: none; width: 16px; height: 16px; }
  .sidebar .nav-link[aria-current=page]::before { content: none; }
  .topbar-content {
    grid-template-areas: "search filters menu";
    grid-template-columns: minmax(160px, 238px) minmax(0, 1fr) auto;
    min-height: 60px;
    gap: 13px;
  }
  .topbar-filters { padding: 0; border: 0; }
  .topbar-filter select { max-inline-size: 190px; height: 36px; }
  .quick-search { height: 36px; }
  main { padding-block-start: 24px; }
}

@media (min-width: 781px) and (max-width: 960px) {
  .work-grid, .dash-analysis { grid-template-columns: minmax(0,1.65fr) minmax(236px,1fr); }
}

@media (max-width: 780px) {
  .topbar { position: static; }
  .topbar-content {
    grid-template-areas: "brand search menu" "nav nav nav" "filters filters filters";
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0 10px;
    padding-top: 8px;
  }
  .nav-toggle { min-width: 44px; min-height: 44px; }
  .admin-profile { width: 44px; height: 44px; }
  .nav-toggle span { display: none; }
  .primary-nav { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; min-height: 44px; }
  .primary-link { padding-inline: 4px; }
  .topbar-filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; padding-block: 8px 11px; }
  .topbar-filters:has(> label[hidden] + label[hidden]) { grid-template-columns: minmax(0, 1fr); }
  .topbar-filters:has(> label[hidden] + label[hidden]) .topbar-filter { display: flex; gap: 10px; }
  .topbar-filters:has(> label[hidden] + label[hidden]) select { flex: 1; width: auto; }
  .topbar-filters:has(> label[hidden] + label[hidden]) .business-picker-control { flex: 1; }
  .topbar-filters:has(> label[hidden] + label[hidden]) .business-picker-control select { width: 100%; }
  .topbar-filter { display: grid; gap: 3px; }
  .topbar-filter select { min-width: 0; width: 100%; min-height: 44px; }
  main { padding-top: 22px; }
  .work-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .work-grid, .dash-analysis { grid-template-columns: minmax(0,1fr); }
  .dash-rail { grid-template-columns: minmax(0,1fr) minmax(0,1fr); align-items: start; }
}
@media (pointer: coarse) {
  .workspace input, .workspace textarea, .workspace select { font-size: max(16px, 1em); }
  .workspace button, .workspace a, .sidebar a, .sidebar button { touch-action: manipulation; }
}

@media (max-width: 460px) {
  :root { --workspace-gutter: 14px; }
  .dash-heading { align-items: flex-start; gap: 10px; }
  .dash-heading h1 { font-size: 27px; }
  .work-metric { min-height: 110px; padding: 12px; }
  .work-metric-label { gap: 5px; }
  .work-metric-label svg { width: 20px; height: 20px; }
  .work-metric h2 { font-size: 12px; }
  .work-metric-value { font-size: clamp(20px, 5.8vw, 25px); }
  .work-metric-foot { font-size: 11px; }
  .work-task-tabs { margin-inline: 12px; }
  .work-task-tabs button { min-height: 45px; font-size: 12px; gap: 4px; }
  .work-task-list { padding-inline: 12px; }
  .work-task-list li { grid-template-columns: 41px minmax(0,1fr) auto; gap: 6px; }
  .work-tasks footer { margin-inline: 12px; }
  .dash-rail { grid-template-columns: minmax(0,1fr); }
  .dash-chart-box { padding-inline: 9px; }
}