/* 独立客服中心：沿用站点令牌，聊天绑定与状态继续由 support-chat.ts 管理。 */
body.theme-pd .pd-support-center {
  display: flex;
  flex-direction: column;
  gap: var(--pd-space-4);
}

body.theme-pd .pd-support-center-title {
  display: flex;
  align-items: center;
  gap: var(--pd-space-3);
}

body.theme-pd .pd-support-center-title h1 {
  margin: 0 0 calc(var(--pd-space-1) / 2);
  font-size: var(--pd-fs-xl);
  line-height: var(--pd-lh-tight);
}

body.theme-pd .pd-support-center-title p {
  margin: 0;
  color: var(--pd-color-text-secondary);
  font-size: var(--pd-fs-sm);
}

body.theme-pd .pd-support-center-icon {
  display: grid;
  flex: none;
  place-items: center;
  width: calc(var(--pd-space-4) * 2);
  height: calc(var(--pd-space-4) * 2);
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  border-radius: var(--pd-radius-lg);
  font-size: var(--pd-fs-xl);
}

body.theme-pd .pd-support-center-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 280px);
  align-items: start;
  gap: var(--pd-space-4);
}

body.theme-pd .pd-support-center .pd-support,
body.theme-pd .pd-support-side-card {
  min-width: 0;
  margin: 0;
  padding: var(--pd-space-4);
  background: var(--pd-color-surface);
  border: 1px solid var(--pd-color-border);
  border-radius: var(--pd-card-radius-page);
  box-shadow: var(--pd-shadow-1);
}

body.theme-pd .pd-support-center .pd-support-head {
  gap: var(--pd-space-2);
  margin-bottom: 0;
  padding-bottom: var(--pd-space-3);
  border-bottom: 1px solid var(--pd-color-divider);
}

body.theme-pd .pd-support-center .pd-support-avatar {
  width: calc(var(--pd-space-4) * 2);
  height: calc(var(--pd-space-4) * 2);
}

body.theme-pd .pd-support-avatar-fallback {
  display: grid;
  place-items: center;
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  font-size: var(--pd-fs-lg);
}

body.theme-pd .pd-support-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--pd-space-1);
  margin-bottom: calc(var(--pd-space-1) / 2);
}

body.theme-pd .pd-support-name h2 {
  margin: 0;
  font-size: var(--pd-fs-md);
  line-height: var(--pd-lh-tight);
}

body.theme-pd .pd-support-kind {
  padding: calc(var(--pd-space-1) / 4) var(--pd-space-1);
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  border-radius: var(--pd-radius-pill);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-head p {
  font-size: var(--pd-fs-xs);
  line-height: var(--pd-lh-normal);
}

body.theme-pd .pd-support-center .pd-support-log {
  gap: var(--pd-space-2);
  min-height: calc(var(--pd-space-5) * 7);
  max-height: min(52vh, 520px);
  padding: var(--pd-space-4) 0;
  scrollbar-width: thin;
}

body.theme-pd .pd-support-center .pd-support-msg {
  padding: var(--pd-space-2) var(--pd-space-3);
  font-size: var(--pd-fs-sm);
}

body.theme-pd .pd-support-center .pd-support-msg--bot {
  border-top-left-radius: calc(var(--pd-radius-lg) / 3);
}

body.theme-pd .pd-support-center .pd-support-msg--user {
  border-top-right-radius: calc(var(--pd-radius-lg) / 3);
}

body.theme-pd .pd-support-quick {
  margin-bottom: var(--pd-space-3);
}

body.theme-pd .pd-support-quick-label {
  margin: 0 0 var(--pd-space-1);
  color: var(--pd-color-text-tertiary);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-quick:has(.pd-support-chips[hidden]) {
  display: none;
}

body.theme-pd .pd-support-center .pd-support-chips {
  margin: 0;
}

body.theme-pd .pd-support-center .pd-support-chip {
  padding: var(--pd-space-1) var(--pd-space-2);
  color: var(--pd-color-text-secondary);
  background: var(--pd-color-surface);
  border: 1px solid var(--pd-color-border);
  transition:
    color 150ms ease,
    border-color 150ms ease,
    background 150ms ease;
}

body.theme-pd .pd-support-center .pd-support-chip:hover {
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  border-color: var(--pd-color-primary-muted);
}

body.theme-pd .pd-support-center .pd-support-form {
  gap: var(--pd-space-2);
  margin-top: 0;
}

body.theme-pd .pd-support-center .pd-support-form textarea {
  padding: var(--pd-space-2) var(--pd-space-3);
  background: var(--pd-color-surface-subtle);
  border: 1px solid var(--pd-color-border);
  border-radius: var(--pd-radius-md);
  line-height: var(--pd-lh-normal);
}

body.theme-pd .pd-support-center .pd-support-form textarea:focus {
  background: var(--pd-color-surface);
  border-color: var(--pd-color-primary);
  box-shadow: var(--pd-focus-ring);
  outline: none;
}

body.theme-pd .pd-support-center .pd-support-send,
body.theme-pd .pd-support-center .pd-support-reset {
  min-height: calc(var(--pd-space-5) + var(--pd-space-1));
}

body.theme-pd .pd-support-center .pd-support-send:hover:not(:disabled) {
  background: var(--pd-color-primary-hover);
}

body.theme-pd .pd-support-center .pd-support-reset:hover {
  color: var(--pd-color-text);
}

body.theme-pd .pd-support-keyboard-hint {
  margin-left: auto;
  color: var(--pd-color-text-tertiary);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-center .pd-support-note {
  margin: var(--pd-space-3) 0 0;
  line-height: var(--pd-lh-normal);
}

body.theme-pd .pd-support-center-side {
  display: flex;
  flex-direction: column;
  gap: var(--pd-space-3);
}

body.theme-pd .pd-support-side-card h2 {
  margin: 0 0 var(--pd-space-2);
  font-size: var(--pd-fs-md);
}

body.theme-pd .pd-support-side-card p {
  margin: 0 0 var(--pd-space-3);
  color: var(--pd-color-text-secondary);
  font-size: var(--pd-fs-sm);
  line-height: var(--pd-lh-normal);
}

body.theme-pd .pd-support-side-icon {
  display: grid;
  place-items: center;
  width: calc(var(--pd-space-5) + var(--pd-space-1));
  height: calc(var(--pd-space-5) + var(--pd-space-1));
  margin-bottom: var(--pd-space-3);
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  border-radius: var(--pd-radius-md);
  font-size: var(--pd-fs-lg);
}

body.theme-pd .pd-support-email {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pd-space-1);
  padding: var(--pd-space-2);
  color: var(--pd-color-primary);
  background: var(--pd-color-primary-soft);
  border-radius: var(--pd-radius-md);
  font-size: var(--pd-fs-sm);
  font-weight: var(--pd-fw-semibold);
  overflow-wrap: anywhere;
  text-decoration: none;
}

body.theme-pd .pd-support-email i {
  flex: none;
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-side-card .pd-support-email-hint {
  margin: var(--pd-space-2) 0 0;
  color: var(--pd-color-text-tertiary);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-help-link {
  display: flex;
  align-items: center;
  gap: var(--pd-space-2);
  padding: var(--pd-space-2) 0;
  color: var(--pd-color-text-secondary);
  text-decoration: none;
}

body.theme-pd .pd-support-help-link + .pd-support-help-link {
  border-top: 1px solid var(--pd-color-divider);
}

body.theme-pd .pd-support-help-link > i:first-child {
  width: var(--pd-space-4);
  color: var(--pd-color-primary);
  text-align: center;
  font-size: var(--pd-fs-md);
}

body.theme-pd .pd-support-help-link > i:last-child {
  margin-left: auto;
  color: var(--pd-color-text-tertiary);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-help-link strong,
body.theme-pd .pd-support-help-link small {
  display: block;
}

body.theme-pd .pd-support-help-link strong {
  color: var(--pd-color-text);
  font-size: var(--pd-fs-sm);
  font-weight: var(--pd-fw-semibold);
}

body.theme-pd .pd-support-help-link small {
  margin-top: calc(var(--pd-space-1) / 2);
  font-size: var(--pd-fs-xs);
}

body.theme-pd .pd-support-email:hover,
body.theme-pd .pd-support-help-link:hover strong {
  color: var(--pd-color-primary-hover);
}

body.theme-pd .pd-support-center button:focus-visible,
body.theme-pd .pd-support-center a:focus-visible {
  outline: 2px solid var(--pd-color-primary);
  outline-offset: 3px;
}

body.theme-pd .pd-support-unavailable {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--pd-space-2);
  padding: calc(var(--pd-space-5) * 2) var(--pd-space-3);
  text-align: center;
}

body.theme-pd .pd-support-unavailable-icon {
  color: var(--pd-color-text-tertiary);
  font-size: var(--pd-fs-display);
}

body.theme-pd .pd-support-unavailable h3 {
  margin: 0;
  font-size: var(--pd-fs-md);
}

body.theme-pd .pd-support-unavailable p {
  max-width: 400px;
  margin: 0;
  color: var(--pd-color-text-secondary);
  font-size: var(--pd-fs-sm);
  line-height: var(--pd-lh-normal);
}

@media (max-width: 900px) {
  body.theme-pd .pd-support-center-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--pd-space-3);
  }

  body.theme-pd .pd-support-center-side {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  body.theme-pd .pd-support-center {
    gap: var(--pd-space-3);
  }

  body.theme-pd .pd-support-center-title h1 {
    font-size: var(--pd-fs-lg);
  }

  body.theme-pd .pd-support-center .pd-support,
  body.theme-pd .pd-support-side-card {
    padding: var(--pd-space-3);
  }

  body.theme-pd .pd-support-center .pd-support-log {
    min-height: calc(var(--pd-space-5) * 6);
    max-height: 48vh;
    padding: var(--pd-space-3) 0;
  }

  body.theme-pd .pd-support-center .pd-support-msg {
    max-width: 92%;
  }

  body.theme-pd .pd-support-keyboard-hint {
    display: none;
  }

  body.theme-pd .pd-support-center-side {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.theme-pd .pd-support-center .pd-support-chip {
    transition: none;
  }
}