/* 校园智聊 · 后端对接层（模板样式之上的少量补丁） */

/* 品牌 Logo：favicon.ico */
.brand-logo.logo,
.auth-card__logo.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  margin: 0;
}

.auth-card__logo.brand-logo {
  margin: 0 auto 16px;
}

.brand-logo__img {
  display: block;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-elevated);
  aspect-ratio: 1;
  flex-shrink: 0;
  max-width: none;
}

.sidebar-brand .brand-logo__img,
.sidebar-brand img.logo {
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
}

.auth-card__logo .brand-logo__img {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  margin: 0 auto;
}

.sidebar-user .c-avatar {
  flex: 0 0 32px;
}

/* 登录页 · 服务商 */
.auth-page {
  flex-direction: column;
  gap: 20px;
}

.auth-sponsor {
  width: 100%;
  max-width: 400px;
  text-align: center;
  padding: 0 8px 8px;
}

.auth-sponsor__logos {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.auth-sponsor__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.auth-sponsor__caption {
  margin: 0;
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.auth-sponsor__logo {
  display: block;
  width: auto;
  height: auto;
  object-fit: contain;
}

.auth-sponsor__logo--main {
  max-width: 220px;
  max-height: 80px;
}

.auth-sponsor__logo--partner {
  max-width: 140px;
  max-height: 56px;
}

.auth-sponsor__credit {
  margin: 0;
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
}

.auth-card__footer-html {
  margin-top: 16px;
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  line-height: 1.5;
}

.auth-card__footer-html img {
  max-width: 100%;
  height: auto;
}

/* SSO 授权确认页（展示用，OAuth 风格） */
.consent-page {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent),
    var(--bg-canvas);
}

.consent-card--premium {
  width: 100%;
  max-width: 420px;
  padding: 32px 28px 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: calc(var(--radius-xl) + 4px);
  box-shadow: var(--shadow-lg);
}

.consent-card--premium .auth-card__logo {
  margin: 0;
}

.consent-card--premium .brand-logo__img {
  width: 40px;
  height: 40px;
}

.consent-hero {
  text-align: center;
  margin-bottom: 22px;
}

.consent-hero__apps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 14px;
}

.consent-hero__app {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-canvas);
  color: var(--text-secondary);
}

.consent-hero__app--client {
  padding: 6px;
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border-subtle));
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-canvas));
}

.consent-hero__arrow {
  display: flex;
  color: var(--text-tertiary);
  opacity: 0.7;
}

.consent-hero__identity {
  margin: 0;
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

.consent-hero__identity strong {
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}

.consent-card__title {
  margin: 0 0 8px;
  font-size: 1.125rem;
  font-weight: var(--fw-semibold);
  text-align: center;
  color: var(--text-primary);
  line-height: var(--lh-snug);
  letter-spacing: -0.01em;
}

.consent-card__desc {
  margin: 0 0 20px;
  font-size: var(--fs-caption);
  text-align: center;
  color: var(--text-tertiary);
  line-height: var(--lh-normal);
}

.consent-scopes {
  list-style: none;
  margin: 0 0 24px;
  padding: 4px 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-canvas);
}

.consent-scopes__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.consent-scopes__item:last-child {
  border-bottom: none;
}

.consent-scopes__check {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
}

.consent-scopes__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.consent-scopes__label {
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
}

.consent-scopes__value {
  font-size: var(--fs-caption);
  color: var(--text-tertiary);
  word-break: break-all;
}

.consent-actions {
  margin: 0;
}

.consent-actions--decline {
  margin-top: 12px;
  text-align: center;
}

.consent-decline-btn {
  margin: 0;
  padding: 6px 12px;
  border: none;
  background: none;
  font: inherit;
  font-size: var(--fs-body-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s;
}

.consent-decline-btn:hover {
  color: var(--text-secondary);
}

.consent-footnote {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  font-size: 11px;
  line-height: 1.5;
  text-align: center;
  color: var(--text-tertiary);
}

.sidebar-header__actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.app-sidebar .sidebar-history {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 0;
  overflow-y: auto;
}

.conv-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.conv-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  width: 100%;
  padding: 0.5rem 0.65rem;
  margin: 0;
  border: none;
  border-radius: var(--radius-md, 8px);
  background: transparent;
  font: inherit;
  font-size: var(--fs-body-sm, 0.875rem);
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.conv-item:hover,
.conv-item.active {
  background: var(--bg-hover);
}

.conv-title {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conv-del {
  opacity: 0.45;
  padding: 0 0.2rem;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.conv-del:hover {
  opacity: 1;
  color: var(--danger, #ef4444);
}

.conv-empty-hint {
  padding: 0.75rem 0.5rem;
  font-size: var(--fs-body-sm);
  color: var(--text-tertiary);
  text-align: center;
  list-style: none;
}

.sidebar-search-box {
  margin: 0 0 0.75rem;
  padding: 0 0.25rem;
}

.sidebar-search-box[hidden] {
  display: none !important;
}

.sidebar-search-input {
  width: 100%;
  padding: 0.5rem 0.65rem;
  font: inherit;
  font-size: var(--fs-body-sm);
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  outline: none;
}

.sidebar-search-input:focus {
  border-color: var(--border-strong);
}

.sidebar-hint-account {
  margin: 0 0 0.5rem;
  padding: 0 0.25rem;
  font-size: 0.6875rem;
  color: var(--text-tertiary);
  line-height: 1.4;
}

.sync-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-subtle);
  flex-shrink: 0;
}

.sync-indicator.is-active {
  background: var(--text-secondary);
  animation: syncPulse 1s ease-in-out infinite;
}

@keyframes syncPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.sidebar-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0 0.25rem;
  margin-bottom: 0.35rem;
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--text-tertiary);
}

/* 空状态：欢迎语居中 + 输入条贴底（对齐 chat.html） */
.app-main.is-empty .chat-stream {
  display: none;
  flex: 0;
  min-height: 0;
}

.app-main.is-empty .chat-welcome {
  display: flex;
  flex: 1;
}

.app-main:not(.is-empty) .chat-welcome {
  display: none;
}

.app-main.is-empty .composer {
  margin-top: auto;
}

/* 消息：chat.js 渲染结构对齐模板 */
.chat-stream .msg {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.chat-stream .msg--user,
.chat-stream .msg-user {
  flex-direction: row-reverse;
}

.chat-stream .msg__avatar,
.chat-stream .msg-avatar {
  width: 28px;
  height: 28px;
  min-width: 28px;
  min-height: 28px;
  aspect-ratio: 1;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: 600;
  border-radius: 50%;
}

.chat-stream .msg__avatar--user,
.chat-stream .msg-user .msg-avatar {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}

.chat-stream .msg__avatar--ai,
.chat-stream .msg-assistant .msg-avatar {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.chat-stream .msg__body,
.chat-stream .msg-body {
  flex: 1;
  min-width: 0;
}

.chat-stream .msg-header {
  display: none;
}

.chat-stream .msg__content,
.chat-stream .msg-content {
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text-primary);
  word-break: break-word;
}

.chat-stream .msg__actions,
.chat-stream .msg-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  margin-top: 0.5rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.chat-stream .msg:hover .msg__actions,
.chat-stream .msg:hover .msg-toolbar,
.chat-stream .msg:focus-within .msg__actions,
.chat-stream .msg:focus-within .msg-toolbar {
  opacity: 1;
}

.msg-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
}

.msg-tool-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.msg-tool-btn.is-active {
  color: var(--accent-primary);
  background: var(--bg-hover);
}

/* Markdown */
.md-body {
  font-size: inherit;
  line-height: inherit;
}

.md-body pre,
.code-block-wrap {
  margin: 0.65rem 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-elevated);
}

.code-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.55rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.6875rem;
  color: var(--text-tertiary);
}

.btn-code-copy,
.btn-code-run,
.msg-btn-copy {
  padding: 0.25rem 0.55rem;
  font-size: 0.6875rem;
  font-weight: 500;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
}

.code-output {
  margin: 0;
  padding: 0.55rem 0.75rem;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  white-space: pre-wrap;
  background: var(--bg-input);
  color: var(--text-primary);
}

.code-output.is-error {
  color: var(--danger);
}

.typing-indicator {
  display: inline-flex;
  gap: 5px;
  padding: 0.35rem 0;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-tertiary);
  animation: aiTypingDot 1.25s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.18s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.36s; }

@keyframes aiTypingDot {
  0%, 70%, 100% { opacity: 0.35; transform: translateY(0); }
  35% { opacity: 1; transform: translateY(-4px); }
}

/* 生图 / 生视频进度 */
.media-gen-progress {
  padding: 0.85rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  max-width: 360px;
}

.media-gen-progress__label {
  font-size: var(--fs-body-sm, 0.875rem);
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.media-gen-progress__status {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
}

.media-gen-progress__track {
  height: 6px;
  background: var(--border-subtle);
  border-radius: 6px;
  overflow: hidden;
}

.media-gen-progress__bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-primary-hover, #4a9eff));
  border-radius: 6px;
  transition: width 0.35s ease;
}

.media-gen-progress.is-indeterminate .media-gen-progress__bar {
  width: 35% !important;
  animation: mediaGenIndeterminate 1.2s ease-in-out infinite;
}

@keyframes mediaGenIndeterminate {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

/* 附件 / 上传 */
.file-attachments {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 140px;
  overflow-y: auto;
  margin-bottom: 0.5rem;
}

.file-upload-card {
  padding: 0.65rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.file-upload-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.5rem;
}

.file-upload-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-secondary);
}

.file-upload-cancel {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  color: var(--text-tertiary);
}

.file-upload-cancel:hover { color: var(--text-primary); }

.file-upload-track {
  height: 4px;
  background: var(--border-subtle);
  border-radius: 4px;
  overflow: hidden;
}

.file-upload-bar {
  height: 100%;
  width: 0%;
  background: var(--accent-primary);
  transition: width 0.2s;
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  background: var(--bg-elevated);
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  align-self: flex-start;
}

.file-chip button {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-tertiary);
}

.btn-attach.disabled,
.btn-voice.disabled,
.send-btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}

.send-btn.loading {
  opacity: 0.65;
}

/* 语音条 */
.composer.is-voice-active .composer__bar {
  display: none;
}

.voice-recorder {
  display: none;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
}

.composer.is-voice-active .voice-recorder {
  display: flex;
}

.voice-recorder[hidden] {
  display: none !important;
}

.voice-rec-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.voice-rec-cancel {
  background: var(--bg-surface);
  color: var(--text-secondary);
}

.voice-rec-confirm {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}

.voice-rec-center {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.voice-wave {
  width: 100%;
  flex: 0 0 auto;
  display: flex;
  gap: 3px;
  height: 32px;
  align-items: center;
  justify-content: center;
}

.voice-wave-bar {
  width: 3px;
  height: 6px;
  border-radius: 2px;
  background: var(--border-strong);
}

.voice-wave-bar.is-active {
  background: var(--text-secondary);
}

.voice-timer {
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

.voice-transcript {
  margin: 0;
  width: 100%;
  max-width: 100%;
  padding: 0 8px;
  font-size: var(--fs-body-sm);
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
  min-height: 1.25em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.voice-transcript.is-empty {
  color: var(--text-tertiary);
  font-style: italic;
}

.composer.is-voice-active .voice-recorder {
  background: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
}

.card-spotlight--composer .composer__bar,
.card-spotlight--composer #chat-form {
  position: relative;
  z-index: 1;
}

.card-spotlight--composer .composer__tools button,
.card-spotlight--composer .composer__tools select,
.card-spotlight--composer .composer__textarea,
.card-spotlight--composer .send-btn {
  pointer-events: auto;
}

body.delete-conv-open {
  overflow: hidden;
}

/* 上传说明弹窗 */
.upload-notice-modal {
  position: fixed;
  inset: 0;
  z-index: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.upload-notice-modal[hidden] {
  display: none;
}

.upload-notice-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}

.upload-notice-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.upload-notice-title {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
}

.upload-notice-text {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.upload-notice-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

body.upload-notice-open {
  overflow: hidden;
}

/* 对话页 · 系统公告 */
.chat-notice-modal {
  position: fixed;
  inset: 0;
  z-index: 650;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.chat-notice-modal[hidden] {
  display: none;
}

.chat-notice-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
}

.chat-notice-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 760px;
  max-height: min(85vh, 720px);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 1.35rem 1.15rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.chat-notice-title {
  margin: 0 0 0.75rem;
  font-size: 1.0625rem;
  font-weight: 600;
  flex-shrink: 0;
}

.chat-notice-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.chat-notice-body :first-child {
  margin-top: 0;
}

.chat-notice-body :last-child {
  margin-bottom: 0;
}

.chat-notice-body p,
.chat-notice-body ul,
.chat-notice-body ol {
  margin: 0 0 0.65rem;
}

.chat-notice-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.chat-notice-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.chat-notice-body h1,
.chat-notice-body h2,
.chat-notice-body h3,
.chat-notice-body h4 {
  margin: 0.75rem 0 0.5rem;
  color: var(--text-primary);
  line-height: var(--lh-snug);
}

.chat-notice-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

body.chat-notice-open {
  overflow: hidden;
}

.auth-card--error .auth-card__subtitle--error {
  color: var(--text-secondary);
  word-break: break-word;
}

/* 隐私政策页 */
.legal-page {
  min-height: 100dvh;
  padding: 24px 16px 40px;
  background: var(--bg-canvas);
}

.legal-page__inner {
  max-width: 760px;
  margin: 0 auto;
}

.legal-page__back {
  margin-bottom: 16px;
}

.legal-page__body .privacy-doc {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px 20px;
  line-height: 1.8;
  font-size: 15px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.legal-page__body .privacy-doc__title {
  font-size: 18px;
  font-weight: var(--fw-semibold);
  text-align: center;
  margin-bottom: 15px;
  color: var(--text-primary);
}

.legal-page__body .privacy-doc__heading {
  font-weight: var(--fw-semibold);
  margin-top: 12px;
  color: var(--text-primary);
}

.legal-page__body .privacy-doc p {
  margin: 0 0 0.65rem;
}

.legal-page__body .privacy-doc__logos {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.legal-page__body .privacy-doc__logo {
  display: block;
  width: auto;
  height: auto;
  object-fit: contain;
}

.legal-page__body .privacy-doc__logo--main {
  max-width: 220px;
  max-height: 80px;
}

.legal-page__body .privacy-doc__logo--partner {
  max-width: 140px;
  max-height: 56px;
}

#model-select {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* 管理后台简易表单（PHP 页复用） */
.admin-page .c-field {
  margin-bottom: 1rem;
}

.admin-page .c-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--fs-caption);
  color: var(--text-secondary);
}

.admin-page .c-input,
.admin-page .c-select {
  width: 100%;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-table th,
.admin-table td {
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.alert-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 28%, transparent);
}

.alert-success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid color-mix(in srgb, var(--success) 28%, transparent);
}

@media (max-width: 768px) {
  .chat-stream .msg__actions,
  .chat-stream .msg-toolbar {
    opacity: 1;
  }
}