:root {
  color-scheme: light dark;
  --bg: #f4f6f3;
  --panel: #ffffff;
  --panel-soft: #fbfcfa;
  --control: #ffffff;
  --table-head: #f0f4f2;
  --canvas-bg: #fbfcfa;
  --hero: linear-gradient(135deg, #ffffff 0%, #eef5f2 52%, #f8efe9 100%);
  --metric-bg: rgba(255, 255, 255, .72);
  --active-bg: #edf7f4;
  --active-strong-bg: #e4f1ee;
  --risk-warn-bg: #fff8ea;
  --risk-danger-bg: #fff0ef;
  --risk-ok-bg: #edf8f3;
  --strategy-bg: #eef5f2;
  --ink: #1f2933;
  --muted: #6b7280;
  --line: #d8ded6;
  --primary: #1f766d;
  --primary-dark: #13534d;
  --accent: #b5523b;
  --warn: #b7791f;
  --danger: #b42318;
  --ok: #16845f;
  --shadow: 0 12px 36px rgba(31, 41, 51, .09);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101417;
    --panel: #171d21;
    --panel-soft: #13191d;
    --control: #1d252a;
    --table-head: #202a2f;
    --canvas-bg: #11191d;
    --hero: linear-gradient(135deg, #171d21 0%, #132724 56%, #2a201c 100%);
    --metric-bg: rgba(29, 37, 42, .78);
    --active-bg: #17322e;
    --active-strong-bg: #173b35;
    --risk-warn-bg: #342717;
    --risk-danger-bg: #3a1c1b;
    --risk-ok-bg: #183327;
    --strategy-bg: #142521;
    --ink: #edf2f4;
    --muted: #a7b0b7;
    --line: #2d393f;
    --primary: #37a99b;
    --primary-dark: #77d8cf;
    --accent: #d78168;
    --warn: #e3a83d;
    --danger: #ff766e;
    --ok: #45c68f;
    --shadow: 0 12px 36px rgba(0, 0, 0, .28);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f6f3;
  --panel: #ffffff;
  --panel-soft: #fbfcfa;
  --control: #ffffff;
  --table-head: #f0f4f2;
  --canvas-bg: #fbfcfa;
  --hero: linear-gradient(135deg, #ffffff 0%, #eef5f2 52%, #f8efe9 100%);
  --metric-bg: rgba(255, 255, 255, .72);
  --active-bg: #edf7f4;
  --active-strong-bg: #e4f1ee;
  --risk-warn-bg: #fff8ea;
  --risk-danger-bg: #fff0ef;
  --risk-ok-bg: #edf8f3;
  --strategy-bg: #eef5f2;
  --ink: #1f2933;
  --muted: #6b7280;
  --line: #d8ded6;
  --primary: #1f766d;
  --primary-dark: #13534d;
  --accent: #b5523b;
  --warn: #b7791f;
  --danger: #b42318;
  --ok: #16845f;
  --shadow: 0 12px 36px rgba(31, 41, 51, .09);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101417;
  --panel: #171d21;
  --panel-soft: #13191d;
  --control: #1d252a;
  --table-head: #202a2f;
  --canvas-bg: #11191d;
  --hero: linear-gradient(135deg, #171d21 0%, #132724 56%, #2a201c 100%);
  --metric-bg: rgba(29, 37, 42, .78);
  --active-bg: #17322e;
  --active-strong-bg: #173b35;
  --risk-warn-bg: #342717;
  --risk-danger-bg: #3a1c1b;
  --risk-ok-bg: #183327;
  --strategy-bg: #142521;
  --ink: #edf2f4;
  --muted: #a7b0b7;
  --line: #2d393f;
  --primary: #37a99b;
  --primary-dark: #77d8cf;
  --accent: #d78168;
  --warn: #e3a83d;
  --danger: #ff766e;
  --ok: #45c68f;
  --shadow: 0 12px 36px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

button, input, select {
  font: inherit;
}

input, select, textarea {
  background: var(--control);
  color: var(--ink);
  border-color: var(--line);
}

button {
  border: 1px solid var(--line);
  background: var(--control);
  color: var(--ink);
  min-height: 36px;
  padding: 0 14px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover { border-color: var(--primary); color: var(--primary-dark); }
button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
button.active-choice, .tabs button.active {
  background: var(--active-strong-bg);
  border-color: var(--primary);
  color: var(--primary-dark);
}
.file-button {
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--control);
  color: var(--ink);
  min-height: 36px;
  padding: 0 14px;
  border-radius: 6px;
  cursor: pointer;
}
.file-button {
  position: relative;
  overflow: hidden;
}
.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.visually-hidden-file {
  position: fixed;
  left: -10000px;
  top: -10000px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.shell {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr) 286px;
  grid-template-rows: 48px minmax(0, 1fr) 34px;
  height: 100vh;
  overflow: hidden;
}

.top-menu {
  grid-column: 1 / -1;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.menu-brand {
  font-weight: 800;
  letter-spacing: .08em;
}
.menu-title {
  min-width: 0;
  flex: 1;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.menu-tabs, .menu-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.menu-tabs {
  overflow-x: auto;
  scrollbar-width: none;
}
.menu-tabs button {
  min-height: 30px;
  padding: 0 10px;
  white-space: nowrap;
}
.menu-tabs button.active {
  background: var(--active-strong-bg);
  border-color: var(--primary);
  color: var(--primary-dark);
}
.menu-actions label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}
.menu-actions select {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 8px;
}

.output-rail {
  display: none;
  align-content: start;
  gap: 8px;
  padding: 12px 6px;
  background: var(--panel-soft);
  border-right: 1px solid var(--line);
}
.output-rail button {
  width: 42px;
  min-height: 40px;
  padding: 0;
  font-size: 10px;
  font-weight: 800;
}

.sidebar, .inspector {
  grid-row: 2;
  background: var(--panel-soft);
  border-right: 1px solid var(--line);
  padding: 16px;
  overflow: auto;
  min-width: 0;
}
.sidebar { grid-column: 1; }
.inspector {
  grid-column: 3;
  border-right: 0;
  border-left: 1px solid var(--line);
}
.help-drawer {
  position: fixed;
  right: 18px;
  top: 66px;
  z-index: 30;
  width: min(420px, calc(100vw - 36px));
  max-height: calc(100vh - 100px);
  overflow: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.help-drawer-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 12px;
}
.help-drawer-head strong,
.help-drawer-head span {
  display: block;
}
.help-drawer-head span {
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}
.help-block {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.help-block:last-child {
  border-bottom: 0;
}
.help-block h4 {
  margin: 0 0 8px;
}
.help-block p,
.help-block ol {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
}
.brand-logo {
  width: 92px;
  max-height: 34px;
  object-fit: contain;
  flex: 0 0 auto;
}
.brand h1 { font-size: 16px; margin: 0 0 4px; }
.brand p { font-size: 12px; margin: 0; color: var(--muted); }

.tabs { display: grid; gap: 8px; }
.tabs button {
  justify-content: flex-start;
  text-align: left;
  width: 100%;
}

.status {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
#statusDot {
  width: 10px;
  height: 10px;
  background: var(--ok);
  border-radius: 50%;
}

.main {
  grid-column: 2;
  grid-row: 2;
  overflow: auto;
  padding: 18px;
  min-width: 0;
}
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
}
.topbar h2 { margin: 0 0 4px; font-size: 24px; }
.topbar p { margin: 0; color: var(--muted); }
.planning-progress {
  margin: -6px 0 16px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.planning-progress.is-running {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 118, 109, .16);
}
.planning-progress-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 7px;
}
.planning-progress-track {
  height: 8px;
  border-radius: 999px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  overflow: hidden;
}
.planning-progress-track span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width .28s ease;
}
.workflow-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, .72fr);
  gap: 12px;
  margin: 0 0 16px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--primary) 45%, var(--line));
  border-radius: 8px;
  background: var(--active-bg);
}
.guide-title {
  font-weight: 800;
  margin-bottom: 4px;
}
.guide-copy {
  color: var(--muted);
  line-height: 1.55;
}
.guide-next {
  display: grid;
  gap: 6px;
  padding-left: 12px;
  border-left: 3px solid var(--primary);
}
.guide-next strong {
  color: var(--primary-dark);
}
.guide-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.guide-actions button {
  min-height: 30px;
  padding: 0 10px;
  font-size: 12px;
}
.actions, .toolbar, .import-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.screen { display: none; }
.screen.active {
  display: block;
  min-width: 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 14px;
  margin-bottom: 14px;
}
.sku-workbench {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}
.dashboard-grid > *,
.split > *,
.sku-workbench > *,
.panel {
  min-width: 0;
}
.sku-project {
  grid-column: 1 / -1;
}
.sku-guide {
  grid-column: 1 / -1;
}
.sku-project-hint {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.sku-guide-step {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--control);
  min-height: 64px;
}
.sku-guide-step strong {
  display: block;
  margin-bottom: 4px;
}
.sku-guide-step span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.hidden {
  display: none !important;
}
.stacked-tools {
  display: grid;
  gap: 10px;
}
.button-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.master-list {
  display: grid;
  gap: 8px;
  max-height: 620px;
  overflow: auto;
  margin-top: 12px;
}
.master-item {
  display: grid;
  gap: 8px;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--control);
}
.master-item-head {
  cursor: pointer;
}
.master-item-actions {
  display: grid;
  grid-template-columns: minmax(92px, 120px) minmax(84px, auto) minmax(80px, auto);
  gap: 8px;
  align-items: center;
}
.master-item-actions input {
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  background: var(--panel);
  color: var(--ink);
}
.master-item-actions button {
  min-height: 32px;
  padding: 6px 9px;
}
.master-item.selected {
  border-color: var(--primary);
  background: var(--active-bg);
}
.master-item strong {
  display: block;
}
.master-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 3px;
}
.compact-list {
  max-height: 360px;
}
.estimator-sku-row {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(120px, .7fr) 86px;
  gap: 8px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
}
.estimator-sku-row label {
  display: flex;
  gap: 8px;
  align-items: center;
  min-width: 0;
}
.estimator-sku-row span {
  color: var(--muted);
  font-size: 12px;
}
.estimator-sku-row input[type="number"] {
  width: 100%;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 7px;
  background: var(--control);
  color: var(--ink);
}
.mode-hint,
.unit-summary {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--active-bg);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.5;
}
.unit-summary strong {
  font-size: 13px;
}
.unit-summary span {
  color: var(--muted);
}
.estimator-sku-row input[disabled] {
  opacity: .55;
  cursor: not-allowed;
}
.detail-panel {
  display: grid;
  gap: 14px;
}
.detail-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--panel-soft);
}
.detail-section h4 {
  margin: 0 0 10px;
  font-size: 14px;
}
.compact-table {
  max-height: 520px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 22px rgba(31, 41, 51, .06);
  padding: 14px;
  overflow: hidden;
}
.input-panel {
  border-left: 4px solid var(--primary);
}
.output-panel {
  border-left: 4px solid var(--muted);
  background: var(--panel-soft);
}
.guide-panel {
  border-left: 4px solid var(--accent);
}
.input-panel > h3::before {
  content: "输入 · ";
  color: var(--primary-dark);
  font-size: 12px;
}
.output-panel > h3::before {
  content: "输出 · ";
  color: var(--muted);
  font-size: 12px;
}
.guide-panel > h3::before {
  content: "引导 · ";
  color: var(--accent);
  font-size: 12px;
}
.panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
}
.hero-panel {
  min-height: 240px;
  background: var(--hero);
}
.hero-panel h3 { font-size: 30px; margin-top: 8px; }
.hero-panel p { max-width: 640px; color: var(--muted); line-height: 1.7; }

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 34px;
}
.metric-row div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--metric-bg);
}
.metric-row strong { display: block; font-size: 28px; }
.metric-row span { color: var(--muted); font-size: 13px; }

.flow { margin: 0; padding-left: 22px; line-height: 2.2; }
.flow li.done { color: var(--ok); font-weight: 700; }
.flow li.warn { color: var(--warn); font-weight: 700; }

.panel-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.table-wrap {
  overflow: auto;
  max-height: 420px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 760px;
  font-size: 13px;
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  white-space: nowrap;
}
th { background: var(--table-head); position: sticky; top: 0; z-index: 1; }
td input[type="number"], td input[type="text"], td select {
  width: 100%;
  min-width: 82px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
}

.kv { display: grid; gap: 8px; }
.kv-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 7px;
}
.kv-row span:first-child { color: var(--muted); }
.kv-row span:last-child { font-weight: 700; text-align: right; }

.vehicle-list { display: grid; gap: 10px; }
.vehicle-card {
  text-align: left;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
}
.vehicle-card.selected { border-color: var(--primary); background: var(--active-bg); }
.vehicle-card strong { display: block; }
.vehicle-card span { color: var(--muted); font-size: 13px; }

canvas {
  width: 100%;
  max-width: 100%;
  background: var(--canvas-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.legacy-canvas {
  display: none;
}
.viewer-frame {
  width: 100%;
  min-height: min(680px, calc(100vh - 220px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f1720;
}
.scene-wrap { position: relative; }
.tooltip {
  position: absolute;
  left: 16px;
  top: 16px;
  max-width: 280px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(31, 41, 51, .92);
  color: white;
  font-size: 13px;
  pointer-events: none;
}
.hidden { display: none; }

.risk-list { display: grid; gap: 10px; }
.risk-item {
  border-left: 4px solid var(--warn);
  background: var(--risk-warn-bg);
  padding: 10px 12px;
  border-radius: 6px;
}
.risk-item.fatal {
  border-left-color: var(--danger);
  background: var(--risk-danger-bg);
}
.risk-item.ok {
  border-left-color: var(--ok);
  background: var(--risk-ok-bg);
}
.strategy {
  line-height: 1.65;
  background: var(--strategy-bg);
  border-radius: 8px;
  padding: 12px;
}
.log {
  height: 220px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--control);
  padding: 10px;
  font-size: 12px;
  line-height: 1.6;
}
.muted { color: var(--muted); }
.toolbar { margin-bottom: 14px; }
.step-info { line-height: 1.8; }
.export-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.export-grid.compact {
  grid-template-columns: repeat(2, minmax(150px, 1fr));
}
.export-grid button {
  min-height: 72px;
  font-weight: 700;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 14px;
}
.field {
  display: grid;
  gap: 6px;
}
.field label {
  color: var(--muted);
  font-size: 13px;
}
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  min-height: 38px;
  background: var(--control);
  color: var(--ink);
}
.field input[readonly],
button[disabled] {
  opacity: .62;
  cursor: not-allowed;
}
.field textarea {
  min-height: 76px;
  resize: vertical;
}
.report-preview {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 380px;
  padding: 18px;
  line-height: 1.8;
}
.report-modal {
  position: fixed;
  inset: 24px;
  z-index: 60;
  display: grid;
  grid-template-rows: 54px minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .34);
  overflow: hidden;
}
.report-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-soft);
}
.report-modal-head strong,
.report-modal-head span {
  display: block;
}
.report-modal-head span {
  color: var(--muted);
  font-size: 12px;
}
.report-modal iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

@media (max-width: 1320px) {
  .shell {
    grid-template-columns: 216px minmax(0, 1fr);
  }
  .inspector {
    display: none;
  }
  .workflow-guide,
  .dashboard-grid,
  .split,
  .sku-workbench {
    grid-template-columns: 1fr;
  }
  .sku-project-hint {
    grid-template-columns: 1fr 1fr;
  }
  .sku-project {
    grid-column: auto;
  }
}
.report-preview h2 {
  margin-top: 0;
}
.report-footer {
  margin-top: 24px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 12px;
  font-size: 13px;
}
.report-visual .iso-scene {
  position: relative;
  height: 360px;
  border: 1px solid var(--line);
  background: linear-gradient(#fbfcfd, #f4f6f8);
  overflow: hidden;
  margin: 14px 0;
}
.report-visual .iso-floor {
  position: absolute;
  transform: skewX(28deg);
  transform-origin: left top;
  border: 2px solid #344054;
  background: rgba(217,238,233,.38);
}
.report-visual .iso-back {
  position: absolute;
  border-left: 2px solid #98a2b3;
  border-top: 2px solid #98a2b3;
  background: rgba(208,213,221,.22);
}
.report-visual .iso-box {
  position: absolute;
  background: var(--c);
  border: 1px solid #344054;
  box-shadow: 2px 2px 0 rgba(52,64,84,.28);
  font-size: 6px;
  text-align: center;
}
.report-visual .iso-box::after {
  content: "";
  position: absolute;
  right: calc(-1 * var(--d));
  top: 0;
  width: var(--d);
  height: 100%;
  background: rgba(52,64,84,.18);
  transform: skewY(-28deg);
  transform-origin: left top;
  border: 1px solid #344054;
}
.report-visual .iso-box em {
  font-style: normal;
  position: relative;
  z-index: 2;
}
.report-visual .iso-caption {
  position: absolute;
  left: 12px;
  bottom: 10px;
  color: var(--muted);
  font-size: 11px;
}
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 6px;
  background: var(--active-strong-bg);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
}
.copyright {
  color: var(--muted);
  font-size: 12px;
  margin-top: 24px;
}
.feedback-box {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.feedback-box h4 {
  margin: 0 0 12px;
}
.feedback-box textarea {
  min-height: 120px;
}

.bottom-status {
  grid-column: 1 / -1;
  grid-row: 3;
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
  padding: 0 14px;
  background: var(--panel);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
}
.bottom-status span {
  overflow: hidden;
  text-overflow: ellipsis;
}

.web-lite-only { display: none; }

body.web-lite .web-lite-only { display: inline-flex; }
body.web-lite .sidebar .brand p::after {
  content: " · Customer Service Online Preview";
}
body.web-lite #tabs button[data-tab="home"],
body.web-lite #tabs button[data-tab="order"],
body.web-lite #tabs button[data-tab="export"],
body.web-lite #tabs button[data-tab="about"],
body.web-lite #openProjectBtn,
body.web-lite #saveProjectTopBtn,
body.web-lite #duplicateProjectBtn,
body.web-lite #archiveProjectBtn,
body.web-lite #saveVehicleTemplateBtn,
body.web-lite #updateVehicleTemplateBtn,
body.web-lite #exportSequencePng,
body.web-lite #export2dPng,
body.web-lite #export3dPng,
body.web-lite #confirmReportBtn,
body.web-lite #reopenDraftBtn,
body.web-lite #openReportPreviewBtn,
body.web-lite #export {
  display: none !important;
}
body.web-lite .main {
  padding-bottom: 72px;
}
body.web-lite .topbar .actions {
  grid-template-columns: repeat(3, auto);
}
body.web-lite #screenHint {
  max-width: 920px;
}

@media print {
  .shell > .sidebar,
  .shell > .top-menu,
  .shell > .inspector,
  .bottom-status,
  .topbar,
  .workflow-guide,
  .planning-progress,
  .toolbar,
  .help-drawer {
    display: none !important;
  }
  .shell {
    display: block;
  }
  .main {
    padding: 0 !important;
  }
  .screen {
    display: block !important;
  }
  .screen:not(#report) {
    display: none !important;
  }
}

@media (max-width: 1180px) {
  .shell { grid-template-columns: 210px minmax(0, 1fr); }
  .inspector { display: none; }
  .workflow-guide { grid-template-columns: 1fr; }
  .split, .dashboard-grid, .sku-workbench { grid-template-columns: 1fr; }
  .sku-project-hint { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; grid-template-rows: auto auto minmax(0, 1fr) auto; }
  .top-menu { grid-column: 1; grid-row: 1; flex-wrap: wrap; height: auto; min-height: 48px; padding: 8px 12px; }
  .output-rail { display: none; }
  .sidebar { display: none; }
  .main { grid-column: 1; grid-row: 3; padding: 14px; }
  .bottom-status { grid-column: 1; grid-row: 4; }
  .form-grid { grid-template-columns: 1fr; }
  .sku-project-hint { grid-template-columns: 1fr; }
  .master-item-actions { grid-template-columns: 1fr; }
}