:root {
  --color-primary: #003a58;
  --color-primary-dark: #022641;
  --color-accent: #00a6d6;
  --color-accent-strong: #0084ad;
  --color-surface: #ffffff;
  --color-surface-muted: #f4f6fa;
  --color-border: #d8dee9;
  --color-text: #1c1f24;
  --color-text-muted: #5c6770;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 4px 8px rgba(6, 37, 74, 0.08);
  --shadow-lg: 0 18px 38px rgba(2, 27, 50, 0.18);
  --transition-fast: 0.2s ease;
  font-size: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-surface-muted);
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  line-height: 1.5;
}

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.14);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 1px;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-weight: 600;
  font-size: 20px;
}

.brand-subtitle {
  font-size: 13px;
  opacity: 0.7;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.search-field {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 6px 8px 6px 18px;
  backdrop-filter: blur(8px);
}

.search-field input {
  background: transparent;
  border: none;
  color: #fff;
  min-width: 240px;
  padding: 6px 12px 6px 0;
  font-size: 14px;
}

.search-field input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.search-field input:focus {
  outline: none;
}

.pill-button,
.ghost-button {
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  padding: 10px 18px;
  font-size: 14px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.pill-button {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.pill-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(0, 23, 43, 0.24);
}

.pill-button.accent {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.pill-button.accent:hover {
  background: var(--color-accent);
  color: #fff;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border: 1px solid transparent;
}

.ghost-button:hover {
  background: rgba(255, 255, 255, 0.24);
}

.parameter-edit {
  padding: 6px 12px;
  font-size: 12px;
}

.app-content {
  display: grid;
  grid-template-columns: 300px minmax(380px, 36%) minmax(620px, 1fr);
  gap: 20px;
  flex: 1;
  padding: 24px;
}

aside,
main {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 24px 8px;
}

.panel-header h2 {
  margin: 0;
  font-size: 18px;
}

.icon-button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.icon-button:hover {
  background: var(--color-surface-muted);
  transform: translateY(-1px);
}

.panel-filter {
  padding: 0 24px 16px;
}

.panel-filter label {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.panel-filter select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 14px;
}

.project-list {
  padding: 0 16px 24px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  background: #fff;
  cursor: pointer;
  transition: border var(--transition-fast), box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.project-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 14px rgba(2, 37, 62, 0.12);
  transform: translateY(-2px);
}

.project-card.active {
  border: 2px solid var(--color-accent);
  box-shadow: 0 10px 18px rgba(0, 60, 100, 0.18);
}

.project-card h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.project-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 12px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--color-surface-muted);
  color: var(--color-primary);
  font-weight: 600;
}

.chat-area {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 18px;
  height: 100%;
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.chat-header h1 {
  margin: 0;
  font-size: 24px;
}

.chat-header p {
  margin: 4px 0 0;
  color: var(--color-text-muted);
}

.chat-metadata {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-surface-muted);
}

.chat-body {
  flex: 0 0 auto;
  max-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 8px 18px rgba(6, 29, 50, 0.08);
}

.chat-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.assistant-overview {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
  gap: 20px;
  margin: 0;
}

.sync-panel,
.workflow-panel,
.parameter-panel,
.data-ops,
.analysis-ops,
.extras-ops {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: 0 6px 16px rgba(2, 32, 56, 0.08);
}

.insight-panels {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.insight-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: 0 10px 20px rgba(4, 32, 54, 0.08);
  overflow: hidden;
}

.insight-card summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-primary-dark);
  list-style: none;
}

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

.insight-summary {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 400;
}

.insight-card .insight-content {
  padding: 0 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.insight-card:not([open]) .insight-content {
  display: none;
}

.insight-card[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.sync-panel header,
.workflow-panel header,
.parameter-panel header,
.data-ops header,
.analysis-ops header,
.extras-ops header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.sync-panel h3,
.workflow-panel h3,
.parameter-panel h3,
.data-ops h3,
.analysis-ops h3,
.extras-ops h3 {
  margin: 0;
  font-size: 16px;
  color: var(--color-primary-dark);
}

.sync-panel span,
.workflow-panel span,
.data-ops header span,
.analysis-ops header span,
.extras-ops header span {
  font-size: 12px;
  color: var(--color-text-muted);
}

.sync-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sync-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: var(--color-surface-muted);
}

.sync-item strong {
  font-size: 14px;
  color: var(--color-primary);
}

.sync-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.sync-status {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 166, 214, 0.14);
  color: var(--color-accent-strong);
  font-size: 12px;
  font-weight: 600;
}

.sync-status.synced {
  background: rgba(0, 166, 214, 0.14);
  color: var(--color-accent-strong);
}

.sync-status.queued {
  background: rgba(255, 184, 0, 0.16);
  color: #9c6800;
}

.workflow-stepper {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.workflow-step {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  background: var(--color-surface-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.workflow-step h4 {
  margin: 0;
  font-size: 14px;
  color: var(--color-primary);
}

.workflow-step p {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-muted);
}

.workflow-step.completed {
  border-color: rgba(0, 166, 214, 0.4);
  background: rgba(0, 166, 214, 0.12);
}

.workflow-step.in-progress {
  border-color: rgba(255, 184, 0, 0.5);
  background: rgba(255, 219, 128, 0.18);
}

.workflow-step.ready {
  border-color: rgba(0, 150, 90, 0.4);
  background: rgba(0, 150, 90, 0.12);
}

.workflow-step.pending {
  opacity: 0.75;
}

.workflow-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.workflow-tag {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 166, 214, 0.12);
  color: var(--color-primary);
}

.parameter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.parameter-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.parameter-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.parameter-value {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 14px;
}

.parameter-note {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--color-text-muted);
}

.parameter-note.warning {
  color: #b43b3b;
  font-weight: 600;
}

.ops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.ops-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-muted);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ops-card h4 {
  margin: 0;
  font-size: 14px;
  color: var(--color-primary);
}

.ops-card p {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-muted);
}

.ops-status {
  align-self: flex-start;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(0, 166, 214, 0.16);
  color: var(--color-primary);
  font-weight: 600;
}

.ops-status.warning {
  background: rgba(255, 184, 0, 0.22);
  color: #8d5a00;
}

.ops-status.accent {
  background: rgba(0, 150, 90, 0.16);
  color: #00613a;
}

.ops-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ops-actions button {
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background var(--transition-fast), border var(--transition-fast);
}

.ops-actions button:hover {
  background: var(--color-surface-muted);
  border-color: var(--color-accent);
}

.preview-toolbar button.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.message {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 14px;
}

.message.ai .message-avatar {
  background: var(--color-accent);
}

.message-content {
  background: var(--color-surface-muted);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  max-width: 90%;
  box-shadow: 0 4px 12px rgba(6, 29, 50, 0.12);
}

.message-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 8px;
}

.message-header span {
  font-size: 12px;
  color: var(--color-text-muted);
}

.message-actions {
  display: inline-flex;
  gap: 8px;
  margin-top: 12px;
}

.message-action {
  font-size: 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 10px;
  background: #fff;
  cursor: pointer;
}

.chat-composer {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.composer-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

#chat-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: 14px;
  resize: vertical;
}

#chat-input:focus {
  outline: 2px solid rgba(0, 166, 214, 0.3);
}

.composer-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.composer-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag-chip {
  border-radius: 999px;
  background: rgba(0, 166, 214, 0.12);
  color: var(--color-accent-strong);
  padding: 4px 10px;
  font-size: 12px;
}

.preview-panel {
  display: flex;
  flex-direction: column;
  padding: 28px 30px;
  gap: 24px;
  min-height: 0;
}

.preview-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-muted);
}

.preview-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.preview-toolbar button {
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  padding: 8px 14px;
  font-size: 12px;
  cursor: pointer;
}

.preview-toolbar button:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-muted);
}

.meta-badge {
  background: rgba(0, 166, 214, 0.16);
  color: var(--color-accent-strong);
  padding: 4px 12px;
  border-radius: 999px;
}

.preview-body {
  flex: 1;
  overflow-y: auto;
  padding-right: 10px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 23, 40, 0.52);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  padding: 24px;
  z-index: 20;
}

.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  width: min(620px, 100%);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  max-height: 80vh;
}

.modal-header,
.modal-footer {
  padding: 22px 28px;
  border-bottom: 1px solid var(--color-border);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  font-size: 18px;
}

.modal-body {
  padding: 0 28px 24px;
  overflow-y: auto;
}

.template-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.template-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  cursor: pointer;
  transition: border var(--transition-fast), box-shadow var(--transition-fast);
}

.template-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 10px 18px rgba(0, 40, 68, 0.12);
}

.template-item.selected {
  border-color: var(--color-accent);
  box-shadow: 0 12px 20px rgba(0, 50, 82, 0.15);
}

.modal-footer {
  border-top: 1px solid var(--color-border);
  border-bottom: none;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.pill-button.ghost {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.pill-button.ghost:hover {
  background: var(--color-surface-muted);
}

.word-doc {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  box-shadow: 0 18px 32px rgba(2, 36, 62, 0.14);
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: min(720px, 100%);
}

.doc-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.doc-header h3 {
  margin: 0;
  font-size: 20px;
  color: var(--color-primary-dark);
}

.doc-header p {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

.doc-header-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr));
  gap: 10px 16px;
}

.doc-header-meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.doc-summary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.doc-summary-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: var(--color-surface-muted);
}

.doc-summary-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.doc-summary-value {
  display: block;
  margin-top: 6px;
  font-weight: 600;
  color: var(--color-primary);
}

.doc-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.doc-section h4 {
  margin: 0;
  font-size: 16px;
  color: var(--color-primary-dark);
}

.doc-section p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text);
}

.doc-section ul {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.doc-table-wrapper {
  overflow-x: auto;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.doc-table th,
.doc-table td {
  border: 1px solid var(--color-border);
  padding: 10px 12px;
  text-align: left;
}

.doc-table th {
  background: rgba(0, 166, 214, 0.12);
  color: var(--color-primary);
  font-weight: 600;
}

.doc-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.empty-preview {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 18px;
}

@media (max-width: 1280px) {
  .app-content {
    grid-template-columns: 260px minmax(320px, 45%) minmax(460px, 1fr);
    gap: 16px;
    padding: 20px;
  }
}

@media (max-width: 1080px) {
  .top-actions {
    flex-direction: column;
    align-items: flex-end;
  }

  .search-field input {
    min-width: 160px;
  }

  .app-content {
    grid-template-columns: 260px 1fr;
  }

  .preview-panel {
    grid-column: span 2;
  }

  .assistant-overview {
    grid-template-columns: 1fr;
  }

  .insight-card .insight-content {
    padding: 0 18px 18px;
  }
}

@media (max-width: 900px) {
  .app-content {
    grid-template-columns: 1fr;
  }

  .project-panel,
  .chat-area,
  .preview-panel {
    grid-column: span 1;
  }

  .chat-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .chat-metadata {
    flex-direction: row;
    gap: 12px;
  }

  .insight-card summary {
    flex-direction: column;
    align-items: flex-start;
  }

  .ops-grid {
    grid-template-columns: 1fr;
  }

  .word-doc {
    padding: 24px;
  }

  .doc-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .doc-header-meta {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
}