:root {
  --site-border: #dee2e6;
  --site-text: #212529;
  --site-muted: #6c757d;
  --site-bg: #f8f9fa;
  --site-card-bg: #ffffff;
  --site-nav: #1f2327;
  --site-accent: #0d6efd;
}

html {
  -webkit-text-size-adjust: 100%;
}

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

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.site-navbar {
  background: var(--site-nav);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
}

.site-navbar .navbar-brand {
  letter-spacing: 0.01em;
}

.site-navbar .nav-link {
  opacity: 1;
  color: rgba(255, 255, 255, 0.92);
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link:focus {
  opacity: 1;
  color: #fff;
}

.site-navbar .navbar-text {
  color: rgba(255, 255, 255, 0.72) !important;
}

.page-chatbox-app .site-navbar {
  position: sticky;
  top: 0;
  z-index: 40;
}

.page-chatbox-app .site-navbar {
  position: sticky;
  top: 0;
  z-index: 30;
}

.chatbox-flash-stack {
  z-index: 20;
}

.prewrap {
  white-space: pre-wrap;
}

.form-group label {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.form-group .form-control,
.form-group select,
.form-group textarea {
  font-size: 1rem;
}

.field-help,
.field-error {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

.field-help {
  color: var(--site-muted);
}

.field-error {
  color: #dc3545;
}

.template-select {
  width: 100%;
  max-width: 320px;
}

.template-pill {
  white-space: normal;
  text-align: left;
}

.home-consult-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px;
  gap: 1rem;
  align-items: start;
}

.home-consult-card {
  padding: 1rem;
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  background: #f8f9fa;
}

.home-wechat-qr {
  max-width: 132px;
  margin: 0 auto;
}

.spread-card {
  border: 1px solid var(--site-border);
  background: var(--site-card-bg);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.spread-card-active {
  border-color: #adb5bd;
  box-shadow: 0 0 0 1px rgba(33, 37, 41, 0.08);
}

.detail-report dt {
  font-weight: 600;
}

.detail-report dd {
  margin-bottom: 1rem;
  color: #343a40;
  line-height: 1.75;
}

.report-section {
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  padding: 1rem 1.125rem;
  background: #fff;
}

.report-section__title {
  margin-bottom: 0.625rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.panel,
.side-card,
.reply-card,
.result-card {
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075);
}

.panel {
  padding: 1.5rem;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.section-title,
.result-title {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.panel-subtitle,
.muted,
.empty-state,
.workspace-thread-card__meta,
.workspace-thread-card__preview {
  color: var(--site-muted);
  line-height: 1.7;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--site-muted);
}

.hero,
.workspace-hero,
.workspace-detail-grid,
.layout-grid,
.result-grid,
.hero-side,
.hero-copy {
  display: block;
}

.hero-copy,
.workspace-hero__copy {
  padding: 1.5rem;
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075);
}

.hero-title {
  margin-bottom: 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  line-height: 1.25;
}

.hero-text {
  margin-bottom: 0;
  color: var(--site-muted);
  line-height: 1.8;
}

.hero-actions,
.badge-row,
.meta-row,
.inline-notice__actions,
.action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero-actions,
.badge-row {
  margin-top: 1rem;
}

.tag,
.topic-chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  border-radius: 999px;
  background: #f8f9fa;
  border: 1px solid var(--site-border);
  color: #495057;
}

.info-list,
.history-list,
.message-list,
.article-list {
  display: grid;
  gap: 1rem;
}

.history-item,
.article-item,
.message-card,
.workspace-thread-card,
.imported-reading-card,
.message-bubble {
  display: block;
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  padding: 1rem;
}

.history-item:hover,
.workspace-thread-card:hover {
  text-decoration: none;
  border-color: #ced4da;
}

.history-item-head,
.result-meta,
.workspace-thread-card__meta,
.message-bubble__meta,
.chat-thread-card__head,
.reply-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.history-item--compact {
  padding: 0.875rem 1rem;
}

.workspace-hero {
  margin-bottom: 1.5rem;
}

.workspace-hero__stats {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.workspace-stat-card {
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  box-shadow: 0 .125rem .25rem rgba(0, 0, 0, .075);
}

.workspace-stat-card__label {
  font-size: 0.875rem;
  color: var(--site-muted);
}

.workspace-stat-card__value {
  margin-top: 0.5rem;
  font-size: 1.75rem;
  font-weight: 600;
}

.workspace-grid,
.workspace-detail-grid {
  display: grid;
  gap: 1.5rem;
}

.workspace-shell {
  min-height: calc(100svh - 10rem);
}

.workspace-sticky-card {
  position: sticky;
  top: 5.5rem;
}

.workspace-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.workspace-mini-stat,
.workspace-inline-stat {
  border: 1px solid var(--site-border);
  border-radius: 0.75rem;
  background: #fff;
}

.workspace-mini-stat {
  padding: 0.875rem 1rem;
}

.workspace-mini-stat__label {
  font-size: 0.75rem;
  color: var(--site-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.workspace-mini-stat__value {
  margin-top: 0.35rem;
  font-size: 1.25rem;
  font-weight: 600;
}

.workspace-thread-list {
  display: grid;
  gap: 0.875rem;
  max-height: 72vh;
  overflow: auto;
  padding-right: 0.125rem;
}

.workspace-thread-card {
  border: 1px solid var(--site-border);
  border-radius: 0.875rem;
  padding: 1rem;
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.workspace-thread-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 .35rem 1rem rgba(15, 23, 42, 0.06);
}

.workspace-thread-card--active {
  border-color: #adb5bd;
  box-shadow: 0 0 0 1px rgba(33, 37, 41, 0.08);
}

.workspace-mini-stat-list {
  display: grid;
  gap: 0.75rem;
}

.workspace-inline-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0.875rem;
}

.workspace-thread-card__preview {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
}

.chatbox-app {
  padding: 1rem;
}

.chatbox-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 320px;
  height: calc(100svh - 56px);
  background: #fff;
}

.chatbox-sidebar {
  display: grid;
  grid-template-rows: auto auto auto auto auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.25rem;
  background: #111827;
  color: #f9fafb;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.chatbox-sidebar .form-control,
.chatbox-sidebar .form-select {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: #f9fafb;
}

.chatbox-sidebar .form-control::placeholder {
  color: rgba(249, 250, 251, 0.52);
}

.chatbox-sidebar .form-select {
  color: #f9fafb;
}

.chatbox-sidebar .form-select option {
  color: #111827;
}

.chatbox-sidebar__top,
.chatbox-panel__head,
.chatbox-main__header,
.chatbox-compose-form__footer,
.chatbox-main__actions,
.chatbox-main__meta,
.chatbox-conversation__meta,
.chatbox-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.chatbox-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.chatbox-brand {
  margin: 0.25rem 0 0;
  font-size: 1.375rem;
  font-weight: 600;
}

.chatbox-back-btn {
  border-color: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.chatbox-back-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.chatbox-sidebar__stats {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

.chatbox-sidebar__stats span {
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.chatbox-account-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.08);
}

.chatbox-account-card__avatar,
.chatgpt-sidecard__avatar {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.chatbox-account-card__avatar {
  background: rgba(255, 255, 255, 0.16);
}

.chatbox-account-card__copy {
  display: grid;
  gap: 0.1rem;
}

.chatbox-account-card__copy span {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.62);
}

.chatbox-quick-form,
.chatbox-filter-form {
  padding: 0.875rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.05);
}

.chatbox-sidebar__links {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.chatbox-sidebar__links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8125rem;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.chatbox-sidebar__links a:hover {
  color: #fff;
  text-decoration: none;
}

.chatbox-sidebar__textarea {
  min-height: 88px;
  resize: vertical;
}

.chatbox-conversation-list {
  display: grid;
  gap: 0.75rem;
  overflow: auto;
  padding-right: 0.25rem;
}

.chatbox-conversation {
  display: block;
  padding: 0.9rem 0.95rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.05);
  color: #f9fafb;
  transition: background 0.15s ease, transform 0.15s ease;
}

.chatbox-conversation:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
  transform: translateY(-1px);
}

.chatbox-conversation--active {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.chatbox-conversation__title {
  font-size: 0.95rem;
  line-height: 1.45;
}

.chatbox-conversation__meta,
.chatbox-conversation__preview,
.chatbox-empty-small {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.58);
  line-height: 1.6;
}

.chatbox-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-width: 0;
  background: #f3f4f6;
  overflow: hidden;
}

.chatbox-main__header {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid #e5e7eb;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
}

.chatbox-main__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #111827;
}

.chatbox-main__meta {
  margin-top: 0.35rem;
  justify-content: flex-start;
  color: #6b7280;
  font-size: 0.85rem;
}

.chatbox-thread {
  overflow: auto;
  padding: 1.5rem 1.25rem;
  display: grid;
  gap: 1rem;
  align-content: start;
}

.chatbox-message {
  display: flex;
}

.chatbox-message--assistant {
  justify-content: flex-start;
}

.chatbox-message--user {
  justify-content: flex-end;
}

.chatbox-message__card {
  max-width: min(760px, 88%);
  padding: 1rem 1.05rem;
  border-radius: 1.125rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.chatbox-message--assistant .chatbox-message__card {
  background: #fff;
  border: 1px solid #e5e7eb;
}

.chatbox-message--user .chatbox-message__card {
  background: #dbeafe;
  border: 1px solid #bfdbfe;
}

.chatbox-message__meta {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.55rem;
  font-size: 0.8125rem;
  color: #6b7280;
}

.chatbox-message__body {
  color: #111827;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
}

.chatbox-empty-state {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 3rem 1rem;
  text-align: center;
  color: #6b7280;
}

.chatbox-empty-state h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  color: #111827;
}

.chatbox-composer {
  padding: 1rem 1.25rem 1.25rem;
  border-top: 1px solid #e5e7eb;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.chatbox-searchbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  margin-bottom: 0.875rem;
}

.chatbox-compose-form textarea {
  min-height: 108px;
  border-radius: 1rem;
  resize: vertical;
}

.chatbox-starter-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chatbox-compose-placeholder {
  padding: 1rem 1.125rem;
  border: 1px dashed #ced4da;
  border-radius: 1rem;
  background: #fff;
  color: #6b7280;
}

.chatbox-inspector {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: 1.25rem;
  overflow: auto;
  background: #fafafa;
  border-left: 1px solid #e5e7eb;
}

.chatbox-template-list,
.chatbox-custom-list,
.chatbox-import-list,
.chatbox-batch-list,
.chatbox-metric-list {
  display: grid;
  gap: 0.75rem;
}

.chatbox-custom-item,
.chatbox-import-item,
.chatbox-batch-item {
  padding: 0.875rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.9rem;
  background: #fbfbfb;
}

.chatbox-metric {
  padding: 0.8rem 0.875rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.9rem;
  background: #fbfbfb;
  color: #6b7280;
}

.chatbox-metric strong {
  color: #111827;
}

.chatgpt-sidecard {
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  background: #fff;
}

.chatgpt-sidecard__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chatgpt-sidecard__avatar {
  background: #e5e7eb;
  color: #111827;
}

.chatgpt-sidecard__title {
  font-weight: 600;
  color: #111827;
}

.chatgpt-sidecard__meta {
  font-size: 0.8125rem;
  color: #6b7280;
}

.chatgpt-side-section {
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  background: #fff;
  overflow: hidden;
}

.chatgpt-side-section summary {
  list-style: none;
  cursor: pointer;
  padding: 0.95rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.chatgpt-side-section summary::-webkit-details-marker {
  display: none;
}

.chatgpt-side-section summary span {
  font-weight: 600;
  color: #111827;
}

.chatgpt-side-section summary small {
  color: #6b7280;
  font-size: 0.78rem;
}

.chatgpt-side-section[open] summary {
  border-bottom: 1px solid #f1f3f5;
}

.chatgpt-side-section__body {
  padding: 1rem;
}

.chatgpt-meta-list {
  display: grid;
  gap: 0.55rem;
}

.chatgpt-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.chatgpt-meta-row span {
  color: #6b7280;
}

.chatgpt-meta-row strong {
  color: #111827;
  text-align: right;
}

.message-bubble--assistant {
  background: #f8f9fa;
}

.message-bubble__meta {
  margin-bottom: 0.625rem;
  font-size: 0.875rem;
  color: var(--site-muted);
}

.message-bubble__content {
  color: #343a40;
  line-height: 1.8;
}

.reply-card,
.side-card,
.imported-reading-card {
  padding: 1.25rem;
}

.button,
.button-secondary,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  line-height: 1.5;
  text-decoration: none;
  border: 1px solid transparent;
}

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

.button-secondary {
  color: #0d6efd;
  background: #fff;
  border-color: #0d6efd;
}

.button-ghost {
  color: #495057;
  background: #fff;
  border-color: var(--site-border);
}

.button:hover,
.button-secondary:hover,
.button-ghost:hover {
  text-decoration: none;
}

@media (min-width: 992px) {
  .workspace-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
    align-items: start;
    gap: 1.5rem;
  }

  .workspace-grid,
  .workspace-detail-grid,
  .layout-grid,
  .result-grid {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.48fr);
    align-items: start;
  }
}

@media (max-width: 991.98px) {
  .panel,
  .side-card,
  .reply-card,
  .result-card,
  .hero-copy,
  .workspace-hero__copy {
    padding: 1.25rem;
  }

  .workspace-sticky-card {
    position: static;
  }

  .workspace-thread-list {
    max-height: none;
  }

  .chatbox-shell {
    grid-template-columns: 1fr;
    height: auto;
  }

  .chatbox-sidebar,
  .chatbox-inspector {
    border: 0;
    overflow: visible;
  }

  .chatbox-main {
    min-height: 60vh;
    overflow: visible;
  }
}

@media (max-width: 767.98px) {
  main.container {
    padding-left: calc(var(--bs-gutter-x, 1.5rem) * .5 + env(safe-area-inset-left));
    padding-right: calc(var(--bs-gutter-x, 1.5rem) * .5 + env(safe-area-inset-right));
  }

  body {
    padding-bottom: env(safe-area-inset-bottom);
  }

  .hero-title {
    font-size: 1.625rem;
  }

  .detail-report dt,
  .detail-report dd {
    width: 100%;
  }

  .home-consult-grid {
    grid-template-columns: 1fr;
  }

  .workspace-shell {
    min-height: auto;
  }

  .workspace-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chatbox-app {
    padding: 0;
  }

  .chatbox-main__header,
  .chatbox-thread,
  .chatbox-composer,
  .chatbox-sidebar,
  .chatbox-inspector {
    padding-left: calc(1rem + env(safe-area-inset-left));
    padding-right: calc(1rem + env(safe-area-inset-right));
  }

  .chatbox-composer {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  }

  .chatbox-message__card {
    max-width: 100%;
  }

  .chatbox-searchbar {
    grid-template-columns: 1fr;
  }
}