/* 迪比 PC 对话页 — 对齐小程序迪比模块 */
.dc-page {
  --dc-teal: #14b8a6;
  --dc-teal-dark: #0f766e;
  --dc-coral: #ea580c;
  --dc-bg: #f6f7f4;
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 8% 4%, rgba(20, 184, 166, 0.14), transparent 32%),
    radial-gradient(circle at 96% 92%, rgba(234, 88, 12, 0.08), transparent 28%),
    var(--dc-bg);
}

.dc-site-body .dc-page {
  min-height: calc(100vh - 200px);
}

.dc-layout--single {
  max-width: 1120px;
}

.dc-layout {
  flex: 1;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 0;
  min-height: 0;
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  position: relative;
}

.dc-history-panel {
  border-right: 1px solid var(--color-border-light);
  background: rgba(255, 255, 255, 0.72);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.dc-history-head {
  padding: 16px 14px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.dc-history-head h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
}

.dc-history-new {
  border: 1px solid rgba(20, 184, 166, 0.45);
  background: #ecfdf5;
  color: var(--dc-teal-dark);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.dc-history-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.dc-history-item {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 10px;
  padding: 10px 10px;
  cursor: pointer;
  margin-bottom: 4px;
}

.dc-history-item:hover,
.dc-history-item.is-active {
  background: #ecfdf5;
  border-color: rgba(20, 184, 166, 0.35);
}

.dc-history-item-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dc-history-item-preview {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dc-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
}

.dc-topbar {
  padding: 12px 20px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}

.dc-topbar-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--dc-teal-dark);
  letter-spacing: 0.02em;
}

.dc-topbar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.dc-topbar-link {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 5px 10px;
}

.dc-topbar-link:hover {
  border-color: var(--dc-teal);
  color: var(--dc-teal-dark);
}

.dc-banner {
  margin: 0 20px 8px;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.5;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
}

.dc-banner--trial {
  background: #ecfdf5;
  border-color: #99f6e4;
  color: #115e59;
}

.dc-banner-link {
  color: var(--dc-coral);
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
}

.dc-banner-em {
  font-weight: 800;
  color: var(--dc-coral);
}

.dc-profile-hint {
  margin: 0 20px 10px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #fff;
  border: 1px dashed rgba(148, 163, 184, 0.55);
  font-size: 13px;
  line-height: 1.55;
}

.dc-profile-hint-title {
  font-weight: 700;
  margin-bottom: 4px;
}

.dc-profile-hint-actions {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dc-hint-btn {
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
}

.dc-hint-btn--primary {
  background: var(--dc-teal);
  border-color: var(--dc-teal);
  color: #fff;
}

.dc-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 20px 16px;
  min-height: 0;
}

.dc-home {
  max-width: 640px;
  margin: 24px auto 0;
  text-align: center;
}

.dc-home-avatar {
  width: 88px;
  height: 88px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(145deg, #5eead4, #14b8a6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 12px 28px rgba(20, 184, 166, 0.28);
}

.dc-home-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 12px;
}

.dc-home-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
  text-align: left;
}

.dc-home-feat {
  color: var(--dc-teal-dark);
  font-weight: 700;
}

.dc-home-sub {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
  text-align: left;
}

.dc-suggest-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dc-suggest-chip {
  text-align: left;
  border: 1px solid rgba(20, 184, 166, 0.35);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.5;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.dc-suggest-chip:hover {
  background: #ecfdf5;
  border-color: var(--dc-teal);
}

.dc-messages {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dc-msg {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.dc-msg--user {
  flex-direction: row-reverse;
}

.dc-msg-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
  background: linear-gradient(145deg, #5eead4, #14b8a6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
}

.dc-msg--user .dc-msg-avatar {
  background: #64748b;
}

.dc-bubble {
  max-width: min(88%, 560px);
  padding: 12px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.65;
  word-break: break-word;
}

.dc-msg--assistant .dc-bubble {
  background: #fff;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  border-top-left-radius: 4px;
}

.dc-msg--user .dc-bubble {
  background: #0f766e;
  color: #fff;
  border-top-right-radius: 4px;
}

.dc-msg-link {
  display: inline-block;
  margin: 4px 0;
  padding: 4px 10px;
  border-radius: 8px;
  background: #ecfdf5;
  color: var(--dc-teal-dark);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(20, 184, 166, 0.35);
}

.dc-msg-link:hover {
  background: #d1fae5;
}

.dc-msg-pending-img {
  max-width: 160px;
  max-height: 120px;
  border-radius: 10px;
  margin-bottom: 6px;
  display: block;
}

.dc-more-btn {
  margin-left: 46px;
  border: none;
  background: transparent;
  color: var(--dc-teal-dark);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  padding: 4px 0;
}

.dc-typing {
  margin-left: 46px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.dc-compose {
  flex-shrink: 0;
  border-top: 1px solid var(--color-border-light);
  background: rgba(255, 255, 255, 0.94);
  padding: 12px 20px 16px;
}

.dc-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.dc-tool-btn {
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-text-secondary);
}

.dc-tool-btn:hover {
  border-color: var(--dc-teal);
  color: var(--dc-teal-dark);
}

.dc-skill-tag-row {
  margin-bottom: 8px;
}

.dc-skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ecfdf5;
  border: 1px solid rgba(20, 184, 166, 0.4);
  border-radius: var(--radius-pill);
  padding: 4px 8px 4px 12px;
  font-size: 12px;
  color: var(--dc-teal-dark);
  font-weight: 600;
}

.dc-skill-tag-close {
  border: none;
  background: rgba(15, 118, 110, 0.12);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  color: var(--dc-teal-dark);
}

.dc-pending-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

.dc-pending-thumb {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--color-border);
}

.dc-pending-remove {
  border: none;
  background: #fee2e2;
  color: #b91c1c;
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}

.dc-input-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.dc-input-row textarea {
  flex: 1;
  min-height: 44px;
  max-height: 120px;
  resize: vertical;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 15px;
  font-family: inherit;
  line-height: 1.45;
  outline: none;
}

.dc-input-row textarea:focus {
  border-color: var(--dc-teal);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.16);
}

.dc-send-btn {
  border: none;
  border-radius: 12px;
  background: var(--dc-coral);
  color: #fff;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
}

.dc-send-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.dc-send-btn.is-stop {
  background: #64748b;
}

.dc-compose-note {
  margin-top: 8px;
  font-size: 11px;
  color: var(--color-text-muted);
}

.dc-history-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  z-index: 80;
}

.dc-history-overlay.is-open {
  display: block;
}

@media (max-width: 900px) {
  .dc-layout {
    grid-template-columns: 1fr;
  }
  .dc-history-panel {
    display: none;
  }
  .dc-history-panel.is-mobile-open {
    display: flex;
    position: fixed;
    left: 0;
    top: 56px;
    bottom: 0;
    width: min(300px, 86vw);
    z-index: 90;
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.12);
  }
  .dc-topbar-menu {
    display: inline-flex;
  }
}

@media (min-width: 901px) {
  .dc-topbar-menu {
    display: none;
  }
}

.dc-topbar-menu {
  border: 1px solid var(--color-border);
  background: #fff;
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
}

.dc-skills-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.4);
  padding: 16px;
}

.dc-skills-modal.is-open {
  display: flex;
}

.dc-skills-sheet {
  background: #fff;
  border-radius: 16px;
  max-width: 400px;
  width: 100%;
  max-height: 70vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
}

.dc-skills-sheet-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dc-skills-list {
  overflow-y: auto;
  padding: 8px;
}

.dc-skill-option {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
}

.dc-skill-option:hover {
  background: #ecfdf5;
  border-color: rgba(20, 184, 166, 0.35);
}

.dc-skill-option-name {
  font-weight: 700;
  font-size: 14px;
}

.dc-skill-option-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}