:root {
  --bg: #FFFFFF;
  --bg-deep: #F8F9FA;
  --card: #FFFFFF;
  --card-strong: #FDFDFD;
  --line: #E5E5E5;
  --line-strong: #BD0000;
  --text: #1A1A1A;
  --muted: #666666;
  --primary: #BD0000;
  --primary-soft: rgba(189, 0, 0, 0.08);
  --teal: #BD0000;
  --teal-soft: rgba(189, 0, 0, 0.08);
  --orange: #E65100;
  --orange-soft: rgba(230, 81, 0, 0.08);
  --red: #BD0000;
  --green: #2E7D32;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --display: "Bahnschrift", "DIN Alternate", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.ambient-shell {
  position: fixed;
  inset: 0;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.05), transparent 82%);
  pointer-events: none;
}

.app-frame {
  width: min(100vw, 430px);
  min-height: 100vh;
  margin: 0 auto;
  padding: calc(14px + env(safe-area-inset-top, 0px)) 14px calc(18px + env(safe-area-inset-bottom, 0px));
  position: relative;
  background: var(--bg);
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 10px;
  padding: 2px 6px 0;
  letter-spacing: 0.08em;
}

.view {
  min-height: calc(100vh - 56px - env(safe-area-inset-bottom, 0px));
}

.view-home {
  display: grid;
  gap: 14px;
  padding-bottom: 22px;
}

.view-session {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: calc(100vh - 56px - env(safe-area-inset-bottom, 0px));
  overflow: hidden;
}

.view-followup {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: calc(100vh - 56px - env(safe-area-inset-bottom, 0px));
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 6px 0;
}

.topbar--home {
  align-items: center;
  justify-content: space-between;
}

.topbar--home h1 {
  font-size: 24px;
}

.vehicle-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
}

.vehicle-selector__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.vehicle-selector__icon {
  font-size: 12px;
  opacity: 0.6;
}

.intake__meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.history-trigger {
  background: transparent;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 0;
  border-bottom: 1px solid var(--primary-soft);
}

.tool-grid-simple {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.tool-chip-simple {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 14px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.topbar h1,
.topbar h2 {
  margin: 4px 0 0;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.08;
}

.topbar h1 {
  font-size: 31px;
  color: var(--text);
}

.topbar h2 {
  font-size: 20px;
  color: var(--text);
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ghost-icon {
  min-width: 56px;
  height: 42px;
  padding: 0 14px;
  border-radius: 16px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
}

.ghost-icon--back {
  min-width: 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(189, 0, 0, 0.03), transparent 35%, transparent 65%, rgba(230, 81, 0, 0.03));
  pointer-events: none;
}

.hero,
.vehicle-panel,
.intake,
.step-card {
  padding: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tag--accent {
  color: #FFFFFF;
  background: var(--primary);
}

.hero__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
}

.hero__meta {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero__meta span,
.step-strip__item,
.meta-pill,
.tool-chip,
.branch-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
}

.section-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
}

.section-title h2,
.panel-summary h2 {
  margin: 0;
  font-size: 16px;
  font-family: var(--display);
  letter-spacing: 0.02em;
  color: var(--text);
}

.section-title p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.section-title span {
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.section-title--wide {
  align-items: center;
}

.vehicle-card {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.vehicle-card__avatar {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), var(--orange-soft));
  color: var(--primary);
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
}

.vehicle-card strong {
  display: block;
  font-size: 15px;
  color: var(--text);
}

.vehicle-card p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.input-shell {
  display: block;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.input-shell span {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-size: 12px;
  opacity: 0.8;
}

.input-shell textarea {
  width: 100%;
  border: 0;
  resize: vertical;
  min-height: 92px;
  background: transparent;
  color: var(--text);
  outline: none;
  font-size: 16px;
  line-height: 1.6;
}

.input-shell textarea::placeholder {
  color: var(--muted);
  opacity: 0.5;
}

.quick-inputs,
.tool-row,
.assist-grid,
.branch-preview,
.meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-inputs {
  margin-top: 14px;
}

.quick-chip,
.tool-chip,
.assist-button,
.resume-item__button,
.secondary-button,
.tertiary-button {
  border-radius: 16px;
}

.quick-chip {
  padding: 10px 12px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
}

.intake__footer {
  margin-top: 16px;
  display: grid;
  gap: 14px;
}

.intake__footer p,
.empty-state p,
.resume-item__meta,
.step-card__goal,
.step-card__instruction,
.field-hint,
.helper-note,
.ai-card__body,
.case-list p,
.node-detail p,
.modal__hint {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 13px;
}

.primary-button,
.secondary-button,
.tertiary-button {
  min-height: 54px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.primary-button {
  width: 100%;
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 8px 16px var(--primary-soft);
}

.secondary-button {
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
}

.tertiary-button {
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--primary-soft);
}

.resume-list {
  display: grid;
  gap: 12px;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.module-item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 86px;
  padding: 12px;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all 180ms ease;
  text-align: left;
  align-items: flex-start;
}

.module-item:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
}

.module-item__title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
  font-family: var(--display);
}

.module-item__desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
  margin: 0;
}

.resume-item,
.ai-card,
.helper-panel,
.completion-card,
.case-card,
.modal-card,
.field-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.resume-item {
  display: grid;
  gap: 12px;
}

.resume-item__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.resume-item strong,
.step-card__title,
.completion-card h3,
.modal__header h3,
.node-detail strong {
  font-family: var(--display);
  letter-spacing: 0.02em;
}

.resume-item strong {
  display: block;
  font-size: 15px;
  color: var(--text);
}

.resume-item__button {
  min-height: 44px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid var(--primary-soft);
}

.resume-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.resume-item__button--secondary {
  background: var(--bg-deep);
  border-color: var(--line);
  color: var(--text);
}

.empty-state {
  padding: 18px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-deep);
  border: 1px dashed var(--line);
}

.tool-chip {
  background: var(--bg-deep);
  color: var(--text);
}

.session-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 12px;
}

.panel-card {
  padding: 0;
  flex: 0 0 auto;
}

.panel-card > * {
  position: relative;
  z-index: 1;
}

.panel-summary {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 18px;
  cursor: pointer;
}

.panel-summary::-webkit-details-marker {
  display: none;
}

.panel-summary__right {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.panel-summary__toggle {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  transition: transform 180ms ease;
  color: var(--text);
}

.panel-card[open] .panel-summary__toggle {
  transform: rotate(180deg);
}

.panel-body {
  display: grid;
  gap: 14px;
  padding: 0 18px 18px;
}

.panel-hint {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.session-headline {
  flex: 1 1 auto;
  min-width: 0;
}

.session-headline h2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text);
}

.topbar--session {
  align-items: center;
}

.mode-toggle {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 18px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.mode-toggle__button {
  min-width: 76px;
  min-height: 36px;
  padding: 0 10px;
  border-radius: 14px;
  background: transparent;
  color: var(--muted);
}

.mode-toggle__button.is-active {
  background: var(--primary);
  color: #FFFFFF;
}

.progress__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 12px;
}

.progress__row strong {
  font-size: 19px;
  color: var(--text);
}

.progress-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--bg-deep);
  overflow: hidden;
}

.progress-bar__fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
  transition: width 180ms ease;
}

.step-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.step-strip__item {
  width: 100%;
  min-width: 0;
  min-height: 60px;
  border-radius: 16px;
  text-align: center;
  flex-direction: column;
  gap: 4px;
  padding: 8px 6px;
  color: var(--muted);
  appearance: none;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.step-strip__item strong {
  font-size: 13px;
}

.step-strip__item span {
  font-size: 11px;
}

.step-strip__item:disabled {
  opacity: 0.46;
  cursor: default;
}

.step-strip__item.is-editable {
  cursor: pointer;
}

.step-strip__item.is-current {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.step-strip__item.is-done {
  border-color: var(--green);
  background: rgba(46, 125, 50, 0.08);
  color: var(--green);
}

.step-strip__item.is-skipped {
  border-color: var(--line);
  background: var(--bg-deep);
}

.ai-panel__content {
  display: grid;
  gap: 12px;
}

.ai-card h3,
.step-card__title,
.completion-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: var(--text);
}

.ai-card__list,
.case-list,
.node-detail ul,
.completion-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  opacity: 0.9;
}

.ai-card__list li,
.node-detail li,
.completion-list li {
  margin-bottom: 6px;
  line-height: 1.55;
}

.step-dock {
  position: relative;
  flex: 0 0 auto;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
}

.step-card {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  background: var(--card);
}

.step-card__top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.step-index {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), var(--orange-soft));
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  flex: 0 0 auto;
}

.step-card__title {
  margin-bottom: 8px;
  color: var(--text);
}

.step-card__goal {
  color: var(--text);
  opacity: 0.85;
}

.step-card__instruction {
  margin-top: 8px;
}

.meta-pills {
  margin-top: 12px;
}

.meta-pill {
  min-height: 30px;
  font-size: 12px;
  color: var(--text);
}

.fields {
  display: grid;
  gap: 10px;
}

.field-card {
  padding: 12px;
}

.field-card label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.field-control {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 12px;
  border-radius: 14px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
}

.field-control input,
.field-control select {
  width: 100%;
  background: transparent;
  border: 0;
  color: var(--text);
  outline: none;
  min-height: 48px;
}

.field-control select option {
  color: #333;
}

.field-unit {
  color: var(--primary);
  font-size: 12px;
  white-space: nowrap;
}

.field-hint {
  margin-top: 8px;
  font-size: 12px;
}

.helper-panel {
  padding: 0;
}

.helper-panel summary {
  list-style: none;
  cursor: pointer;
  padding: 14px;
  font-weight: 700;
  color: var(--text);
}

.helper-panel summary::-webkit-details-marker {
  display: none;
}

.helper-panel__content {
  padding: 0 14px 14px;
  display: grid;
  gap: 12px;
}

.assist-button {
  min-height: 46px;
  padding: 0 14px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
  text-align: left;
}

.actions {
  display: grid;
  gap: 10px;
}

.action-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  gap: 10px;
}

.step-error {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(189, 0, 0, 0.05);
  border: 1px solid var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
}

.completion-card {
  display: grid;
  gap: 12px;
}

.completion-card p {
  margin: 0;
  color: var(--text);
  opacity: 0.8;
  line-height: 1.6;
}

.completion-actions {
  display: grid;
  gap: 10px;
}

.followup-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  display: grid;
  gap: 14px;
  padding-bottom: 12px;
}

.followup-summary,
.followup-chat,
.followup-composer {
  padding: 18px;
}

.followup-chat {
  flex: 1 1 auto;
}

.followup-messages {
  display: grid;
  gap: 12px;
}

.followup-message {
  display: grid;
  gap: 6px;
}

.followup-message__role {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
}

.followup-message__bubble {
  padding: 14px;
  border-radius: 18px;
  line-height: 1.65;
  font-size: 14px;
  border: 1px solid var(--line);
}

.followup-message--assistant .followup-message__bubble {
  background: var(--bg-deep);
  color: var(--text);
}

.followup-message--user {
  justify-items: end;
}

.followup-message--user .followup-message__role {
  color: var(--muted);
}

.followup-message--user .followup-message__bubble {
  background: var(--primary-soft);
  color: var(--primary);
  max-width: 92%;
  border-color: var(--primary-soft);
}

.followup-message__points {
  margin: 0;
  padding-left: 18px;
  color: inherit;
}

.followup-message__points li {
  margin-bottom: 6px;
}

.followup-dock {
  flex: 0 0 auto;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.followup-prompts {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
}

.followup-prompt {
  min-height: 46px;
  padding: 0 14px;
  border-radius: 16px;
  background: var(--bg-deep);
  color: var(--text);
  border: 1px solid var(--line);
  text-align: left;
}

.agent-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.agent-overlay__content {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 30px 20px;
  gap: 20px;
}

.agent-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--line);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: agent-spin 1s linear infinite;
}

@keyframes agent-spin {
  to { transform: rotate(360deg); }
}

.agent-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  width: 100%;
  font-size: 13px;
  color: var(--text);
}

.agent-steps li {
  position: relative;
  padding-left: 20px;
}

.agent-steps li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
}

.modal__panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 60px;
  max-height: none;
  display: flex;
  flex-direction: column;
  border-radius: 26px 26px 0 0;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transform: translateY(0);
}

.modal__header,
.modal__body {
  padding: 18px;
}

.modal__header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.modal__header h3 {
  color: var(--text);
}

.modal__body {
  overflow: auto;
  display: grid;
  gap: 20px;
}

.video-card video {
  width: 100%;
  border-radius: 20px;
  background: #000;
  border: 1px solid var(--line);
}

.diagram-stage {
  position: relative;
  min-height: 300px;
  border-radius: 22px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  overflow: hidden;
}

.diagram-hotspot {
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--primary);
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 0 8px var(--primary-soft);
  transform: translate(-50%, -50%);
}

.diagram-hotspot.is-active {
  box-shadow: 0 0 0 10px var(--primary-soft);
}

.node-detail {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-radius: 18px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  color: var(--text);
}

.case-card h4 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--text);
}

.case-list li {
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.55;
  opacity: 0.9;
}

.toast {
  position: fixed;
  left: 50%;
  top: calc(42px + env(safe-area-inset-top, 0px));
  transform: translateX(-50%);
  max-width: min(300px, calc(100vw - 44px));
  padding: 10px 14px;
  border-radius: 16px;
  background: var(--text);
  color: var(--bg);
  border: 1px solid var(--line);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
  z-index: 30;
  pointer-events: none;
  font-size: 13px;
  line-height: 1.45;
}

/* 改版新增样式: 能力地图与需求溯源 */
.view-toggle-mini {
  display: flex;
  background: var(--bg-deep);
  border-radius: 8px;
  padding: 2px;
  border: 1px solid var(--line);
  margin-left: 8px;
}

.view-toggle-mini .toggle-btn {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  transition: all 0.2s;
}

.view-toggle-mini .toggle-btn.is-active {
  background: var(--primary);
  color: #FFFFFF;
}

.requirements-view {
  display: grid;
  gap: 12px;
}

.requirement-item {
  padding: 14px;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-align: left;
}

.requirement-item h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--primary);
}

.requirement-item .mapping-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mapping-tag {
  font-size: 11px;
  padding: 3px 8px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
}

/* 二级模块卡片 */
.sub-module-card {
  padding: 14px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  text-align: left;
}

.sub-module-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.sub-module-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.req-badges {
  display: flex;
  gap: 4px;
}

.req-badge {
  width: 18px;
  height: 18px;
  background: var(--primary);
  color: #FFFFFF;
  font-size: 10px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.function-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.function-chip {
  padding: 4px 10px;
  font-size: 11px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-soft);
  border-radius: 6px;
  color: var(--primary);
  cursor: pointer;
  transition: all 0.2s;
}

.function-chip:hover {
  background: var(--primary);
  color: #FFFFFF;
}

.demo-trigger-btn {
  width: 100%;
  padding: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid var(--primary-soft);
  border-radius: 8px;
  text-align: center;
}

/* 详情页特有样式 */
.function-detail-content {
  display: grid;
  gap: 20px;
}

.detail-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.detail-breadcrumb span:last-child {
  color: var(--text);
  font-weight: 700;
}

.detail-section {
  display: grid;
  gap: 10px;
}

.detail-section h4 {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  font-weight: 700;
}

.detail-content-box {
  padding: 14px;
  background: var(--bg-deep);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  color: var(--text);
  line-height: 1.6;
  font-size: 14px;
}

.detail-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-chip {
  padding: 6px 12px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text);
}

.demo-placeholder {
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 20px;
  background: var(--bg-deep);
}

.ai-skip-note {
  padding: 12px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-soft);
  border-radius: 12px;
  color: var(--primary);
  font-size: 13px;
  margin-bottom: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.ai-skip-note span {
  font-size: 16px;
}

.ai-skip-note strong {
  display: block;
  margin-bottom: 2px;
}

@media (max-width: 390px) {
  .app-frame::before {
    display: none;
  }
}

@media (min-width: 431px) {
  .app-frame::before {
    background: var(--bg);
    border: 1px solid var(--line);
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.1);
  }
}