/* ============================================================
   ChatGPT 皮肤 — 对照本地 gpt/ 参考（浅色默认 + 深色）
   作用域：body.theme-chatgpt，映射 chat.html 现有 DOM
   ============================================================ */

body.theme-chatgpt {
  --provider-sidebar-width: 260px;
  --provider-content-width: 768px;
  --font-body: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Helvetica, "Apple Color Emoji", Arial, sans-serif, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei";
  --font-display: inherit;

  --sidebar-w: var(--provider-sidebar-width);
  --topbar-h: 48px;
  --chat-w: var(--provider-content-width);
  --msg-max: 720px;

  /* Light (gpt default) */
  --bg-main: #ffffff;
  --bg-sidebar: #f9f9f9;
  --bg-panel: #ffffff;
  --bg-menu: #ffffff;
  --bg-elevated: #ffffff;
  --fg: #0d0d0d;
  --fg-dim: #6e6e80;
  --text-tertiary: #8e8e9e;
  --border: #f0f0f0;
  --border-strong: #e5e5e5;
  --item-hover: #f0f0f0;
  --item-active: #ececec;
  --hover-strong: #e3e3e3;
  --accent: #0d0d0d;

  --composer-bg: #ffffff;
  --composer-border: 1px solid #e5e5e5;
  --composer-radius: 26px;
  --composer-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  --composer-focus: #8e8e9e;

  --send-bg: #0d0d0d;
  --send-fg: #ffffff;
  --send-radius: 50%;

  --voice-bg: #0d0d0d;
  --voice-fg: #ffffff;

  --user-bubble: #f4f4f4;
  --user-bubble-fg: #0d0d0d;
  --user-bubble-radius: 22px;
  --user-bubble-pad: 10px 16px;

  --avatar-radius: 50%;
  --radius-btn: 8px;
  --radius-item: 8px;

  --newchat-fg: #0d0d0d;
  --newchat-bg: transparent;
  --newchat-bg-hover: #f0f0f0;
  --newchat-border: none;

  --search-bg: transparent;
  --code-bg: #f4f4f4;
  --code-bar-bg: #ececec;
  --code-inline-bg: #f4f4f4;
  --scrollbar: #e0e0e0;
  --user-avatar: #ef4444;
}

/* 深色：html[data-theme=dark] 或 body.cgpt-dark */
html[data-theme="dark"] body.theme-chatgpt,
body.theme-chatgpt.cgpt-dark {
  --bg-main: #212121;
  --bg-sidebar: #171717;
  --bg-panel: #2f2f2f;
  --bg-menu: #2f2f2f;
  --bg-elevated: #2f2f2f;
  --fg: #ececec;
  --fg-dim: #b4b4b4;
  --text-tertiary: #8e8e8e;
  --border: #2f2f2f;
  --border-strong: #424242;
  --item-hover: #2f2f2f;
  --item-active: #2f2f2f;
  --hover-strong: #3a3a3a;
  --accent: #ececec;

  --composer-bg: #303030;
  --composer-border: 1px solid #424242;
  --composer-shadow: none;
  --composer-focus: #8e8e8e;

  --send-bg: #ffffff;
  --send-fg: #000000;
  --voice-bg: #ffffff;
  --voice-fg: #000000;

  --user-bubble: #2f2f2f;
  --user-bubble-fg: #ececec;

  --newchat-fg: #ececec;
  --newchat-bg-hover: #2f2f2f;

  --search-bg: rgba(255, 255, 255, 0.04);
  --code-bg: #2b2b2b;
  --code-bar-bg: #232323;
  --code-inline-bg: rgba(255, 255, 255, 0.1);
  --scrollbar: #4a4a4a;
}

body.theme-chatgpt {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 侧栏 ---------- */
body.theme-chatgpt .sidebar {
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
}

body.theme-chatgpt .sidebar-header {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

body.theme-chatgpt .brand {
  gap: 0;
}
body.theme-chatgpt .brand-icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--fg);
}
body.theme-chatgpt .brand-icon:hover { background: var(--item-hover); }
body.theme-chatgpt .brand-icon svg,
body.theme-chatgpt .brand-icon .cgpt-logo { width: 24px; height: 24px; display: block; }
body.theme-chatgpt .mi-icon.skin-chatgpt svg { width: 18px; height: 18px; display: block; }
body.theme-chatgpt .brand-name { display: none; }

body.theme-chatgpt .header-btns { display: flex; align-items: center; gap: 4px; }
body.theme-chatgpt .header-btns .icon-btn,
body.theme-chatgpt .icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--fg-dim);
}
body.theme-chatgpt .icon-btn:hover {
  background: var(--item-hover);
  color: var(--fg);
}

/* 新对话按钮 → 参考 nav-item 样式 */
body.theme-chatgpt .new-chat-btn {
  margin: 0 8px 2px;
  padding: 8px 10px;
  gap: 10px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 400;
  color: var(--fg);
  background: transparent;
}
body.theme-chatgpt .new-chat-btn:hover { background: var(--item-hover); }
body.theme-chatgpt .new-chat-btn .plus {
  display: none;
}
body.theme-chatgpt .new-chat-btn::before {
  content: "";
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background: currentColor;
  opacity: 0.7;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M12 20h9'/><path d='M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4Z'/></svg>") center / contain no-repeat;
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M12 20h9'/><path d='M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4Z'/></svg>") center / contain no-repeat;
}

body.theme-chatgpt .sidebar-nav {
  padding: 0 8px;
  gap: 2px;
}
body.theme-chatgpt .snav-item {
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--fg);
  line-height: 1.3;
}
body.theme-chatgpt .snav-item svg { color: var(--fg-dim); }
body.theme-chatgpt .snav-item:hover { background: var(--item-hover); }
body.theme-chatgpt .snav-item.active { background: var(--item-active); }

body.theme-chatgpt .sidebar-search {
  margin: 4px 8px 0;
  padding: 8px 10px;
  border-radius: 8px;
  background: transparent;
  color: var(--fg-dim);
}
body.theme-chatgpt .sidebar-search:hover,
body.theme-chatgpt .sidebar-search:focus-within {
  background: var(--item-hover);
}
body.theme-chatgpt .sidebar-search input {
  font-size: 13px;
  color: var(--fg);
}
body.theme-chatgpt .sidebar-search input::placeholder { color: var(--text-tertiary); }

body.theme-chatgpt .session-list-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
body.theme-chatgpt .chatgpt-organization-btn {
  border: 0;
  padding: 3px 5px;
  border-radius: 6px;
  background: transparent;
  color: var(--fg-dim);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}
body.theme-chatgpt .chatgpt-organization-btn:hover,
body.theme-chatgpt .chatgpt-organization-btn[aria-expanded="true"] {
  background: var(--item-hover);
  color: var(--fg);
}
body.theme-chatgpt .chatgpt-organization-menu { min-width: 170px; }
body.theme-chatgpt .chatgpt-organization-menu button { white-space: nowrap; }
body.theme-chatgpt .chatgpt-local-only-control:focus-visible {
  outline: 2px solid var(--fg-dim);
  outline-offset: 2px;
}
body.theme-chatgpt .snav-item[data-chatgpt-action-state="active"],
body.theme-chatgpt .snav-item[aria-current="page"] {
  background: var(--item-hover);
  color: var(--fg);
}
body.theme-chatgpt [data-chatgpt-action-state="unavailable"] {
  cursor: not-allowed;
}
body.theme-chatgpt #chatgpt-action-feedback {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 260;
  max-width: min(420px, calc(100vw - 36px));
  padding: 9px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg-menu);
  color: var(--fg);
  box-shadow: 0 8px 26px rgba(0, 0, 0, .14);
  font-size: 12px;
  line-height: 1.45;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity .16s ease, transform .16s ease;
  pointer-events: none;
}
body.theme-chatgpt #chatgpt-action-feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}
body.theme-chatgpt .chatgpt-local-codex-card {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--item-hover);
}
body.theme-chatgpt .chatgpt-local-codex-card h2 { margin: 0; font-size: 15px; }
body.theme-chatgpt .chatgpt-local-codex-card p,
body.theme-chatgpt .chatgpt-local-codex-status { margin: 0; color: var(--fg-dim); font-size: 12px; line-height: 1.5; }
body.theme-chatgpt .chatgpt-local-codex-card .workspace-primary-btn { justify-self: start; }

body.theme-chatgpt .session-list-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  padding: 12px 18px 4px;
  text-transform: none;
  letter-spacing: 0.01em;
}

body.theme-chatgpt .session-list {
  padding: 0 8px 8px;
}
body.theme-chatgpt .session-list::-webkit-scrollbar { width: 8px; }
body.theme-chatgpt .session-list::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
  border-radius: 8px;
  border: 2px solid var(--bg-sidebar);
}

body.theme-chatgpt .session-item {
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--fg);
  line-height: 1.4;
}
body.theme-chatgpt .session-item:hover { background: var(--item-hover); }
body.theme-chatgpt .session-item.active { background: var(--item-active); }
body.theme-chatgpt .session-actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  visibility: hidden;
  opacity: 0;
  transition: opacity .12s ease;
}
body.theme-chatgpt .session-item:hover .session-actions,
body.theme-chatgpt .session-item:focus-within .session-actions,
body.theme-chatgpt .session-item[data-menu-open="true"] .session-actions {
  visibility: visible;
  opacity: 1;
}
body.theme-chatgpt .session-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
  line-height: 1;
}
body.theme-chatgpt .session-more:hover {
  background: var(--item-hover);
  color: var(--fg);
}
body.theme-chatgpt .session-del {
  opacity: 0;
  color: var(--fg-dim);
}
body.theme-chatgpt .session-item:hover .session-del,
body.theme-chatgpt .session-item:focus-within .session-del,
body.theme-chatgpt .session-del:focus-visible {
  visibility: visible;
  opacity: 1;
}

body.theme-chatgpt .sidebar-footer {
  padding: 8px;
  border-top: 1px solid var(--border);
}
body.theme-chatgpt .user-chip {
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
}
body.theme-chatgpt .user-chip:hover { background: var(--item-hover); }
body.theme-chatgpt .user-chip-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--user-avatar);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}
body.theme-chatgpt .user-chip-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
}
body.theme-chatgpt .user-chip-balance {
  font-size: 12px;
  color: var(--text-tertiary);
}
body.theme-chatgpt .user-chip-balance b { color: var(--fg-dim); font-weight: 500; }
body.theme-chatgpt .user-chip-caret { display: none; }

body.theme-chatgpt .user-menu,
body.theme-chatgpt .model-menu {
  background: var(--bg-menu);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}
html[data-theme="dark"] body.theme-chatgpt .user-menu,
html[data-theme="dark"] body.theme-chatgpt .model-menu,
body.theme-chatgpt.cgpt-dark .user-menu,
body.theme-chatgpt.cgpt-dark .model-menu {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}
body.theme-chatgpt .chatgpt-thinking-group {
  padding: 4px 0 2px;
}
body.theme-chatgpt .chatgpt-thinking-heading {
  padding: 6px 12px 4px;
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 600;
}
body.theme-chatgpt .chatgpt-thinking-option {
  width: 100%;
  text-align: left;
}
body.theme-chatgpt .chatgpt-thinking-option:hover,
body.theme-chatgpt .chatgpt-thinking-option:focus-visible,
body.theme-chatgpt .chatgpt-thinking-option.active,
body.theme-chatgpt .chatgpt-thinking-option[aria-checked="true"] {
  background: var(--item-hover);
}
body.theme-chatgpt .chatgpt-thinking-option .mi-sub {
  color: var(--fg-dim);
  font-size: 10px;
}
body.theme-chatgpt .chatgpt-thinking-option .mi-check {
  min-width: 18px;
  color: var(--fg);
  text-align: center;
}
body.theme-chatgpt .model-item.model-unavailable {
  cursor: not-allowed;
  background: var(--item-hover);
  color: var(--fg-dim);
}
body.theme-chatgpt .model-item.model-unavailable .mi-label {
  color: var(--fg);
}
body.theme-chatgpt .model-item.model-unavailable .mi-sub {
  color: var(--fg-dim);
  white-space: normal;
}

/* ---------- 主区 / 顶栏 ---------- */
body.theme-chatgpt .main {
  background: var(--bg-main);
  position: relative;
}

body.theme-chatgpt .topbar {
  height: var(--topbar-h);
  min-height: var(--topbar-h);
  padding: 0 12px;
  border-bottom: none;
  background: transparent;
  gap: 8px;
}
body.theme-chatgpt .topbar-wordmark { display: none; }

body.theme-chatgpt .model-picker-btn {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  padding: 6px 10px;
  border-radius: 8px;
  gap: 4px;
}
body.theme-chatgpt .model-picker-btn:hover { background: var(--item-hover); }
body.theme-chatgpt .model-picker-btn svg { color: var(--fg-dim); width: 14px; height: 14px; }

/* 官方 ChatGPT 把模型选择放在输入框右下角，而不是顶栏。 */
body.theme-chatgpt .topbar .model-picker { display: none; }
body.theme-chatgpt .composer-picker { display: block; }
body.theme-chatgpt .composer-model-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 4px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--fg);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
}
body.theme-chatgpt .composer-model-btn .picker-dot { display: none; }
body.theme-chatgpt .composer-model-btn:hover,
body.theme-chatgpt .composer-model-btn[aria-expanded="true"] {
  background: var(--item-hover);
}
body.theme-chatgpt .composer-model-btn svg { color: var(--fg-dim); width: 10px; height: 6px; }
body.theme-chatgpt .composer-picker .model-menu {
  min-width: 236px;
  padding: 10px 8px 8px;
  border-radius: 18px;
  border: 1px solid var(--border-strong);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.12);
}
body.theme-chatgpt .chatgpt-model-default {
  padding: 6px 12px 10px;
}
body.theme-chatgpt .chatgpt-model-default-title {
  color: var(--fg);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
}
body.theme-chatgpt .chatgpt-model-default-sub {
  margin-top: 2px;
  color: var(--text-tertiary);
  font-size: 12px;
  line-height: 1.4;
}
body.theme-chatgpt .chatgpt-model-option {
  min-height: 40px;
  padding: 8px 12px;
  border-radius: 12px;
}
body.theme-chatgpt .chatgpt-model-option .mi-label {
  font-size: 14px;
  font-weight: 500;
}
body.theme-chatgpt .chatgpt-model-option .mi-check {
  margin-left: auto;
  color: var(--fg);
  font-size: 14px;
}
body.theme-chatgpt .chatgpt-effort-option {
  min-height: 36px;
  padding: 7px 12px;
  border-radius: 12px;
}
body.theme-chatgpt .chatgpt-effort-option .mi-label {
  font-size: 14px;
  font-weight: 500;
}
body.theme-chatgpt .chatgpt-effort-option .mi-check {
  margin-left: auto;
  color: var(--fg);
  font-size: 14px;
}
body.theme-chatgpt .chatgpt-effort-option[aria-checked="true"] {
  background: var(--item-hover);
}
body.theme-chatgpt .send-btn {
  background: #c9d7f5;
  color: #1f2937;
}
body.theme-chatgpt .send-btn:hover { opacity: 0.92; }
body.theme-chatgpt .send-btn:disabled,
body.theme-chatgpt .send-btn[aria-disabled="true"] {
  opacity: 0.55;
}
html[data-theme="dark"] body.theme-chatgpt .send-btn,
body.theme-chatgpt.cgpt-dark .send-btn {
  background: #8aa4d6;
  color: #111827;
}

body.theme-chatgpt .announcement {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ---------- 空状态 ---------- */
body.empty-chat.theme-chatgpt .main {
  /* 顶栏 + 居中内容 + 输入 */
}
body.empty-chat.theme-chatgpt .main::before { content: ""; flex: 1 1 0; min-height: 0; }
body.empty-chat.theme-chatgpt .main::after { content: ""; flex: 1.15 1 0; min-height: 0; }
body.empty-chat.theme-chatgpt .chat-scroll {
  flex: 0 0 auto;
  overflow: visible;
}
body.empty-chat.theme-chatgpt .welcome {
  padding: 0 24px 8px;
  max-width: var(--msg-max);
  margin: 0 auto;
}
body.theme-chatgpt .welcome-icon { display: none; }
body.theme-chatgpt .welcome-title {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-align: center;
  color: var(--fg);
  line-height: 1.25;
  margin: 0;
}
body.theme-chatgpt .welcome-sub { display: none; }

body.theme-chatgpt .welcome-suggest {
  max-width: var(--msg-max);
  margin: 12px auto 0;
  padding: 0;
  gap: 0;
}
body.theme-chatgpt .suggest-item {
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--fg-dim);
}
body.theme-chatgpt .suggest-item:hover {
  background: var(--item-hover);
  color: var(--fg);
}
body.theme-chatgpt .suggest-item svg {
  color: var(--fg-dim);
  opacity: 1;
}

/* ---------- 消息 ---------- */
body.theme-chatgpt .chat-scroll {
  background: var(--bg-main);
}
body.theme-chatgpt .messages {
  max-width: var(--msg-max);
  padding: 24px 20px 40px;
}
body.theme-chatgpt .msg {
  margin-bottom: 8px;
  gap: 12px;
  padding: 12px 0;
}
body.theme-chatgpt .msg-avatar { display: none; }
body.theme-chatgpt .msg-user { flex-direction: row-reverse; }
body.theme-chatgpt .msg-user .msg-body {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
body.theme-chatgpt .msg-user .msg-content {
  max-width: 70%;
  background: var(--user-bubble);
  color: var(--user-bubble-fg);
  border-radius: var(--user-bubble-radius);
  padding: var(--user-bubble-pad);
}
body.theme-chatgpt .msg-assistant .msg-content {
  font-size: 16px;
  line-height: 1.75;
  color: var(--fg);
  max-width: 100%;
}
body.theme-chatgpt .msg-content code {
  background: var(--code-inline-bg);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 14px;
}
body.theme-chatgpt .msg-content pre {
  background: var(--code-bg);
  border: none;
  border-radius: 10px;
}
body.theme-chatgpt .msg-actions { opacity: 0; }
body.theme-chatgpt .msg:hover .msg-actions,
body.theme-chatgpt .msg:last-child .msg-actions,
body.theme-chatgpt .msg:focus-within .msg-actions,
body.theme-chatgpt .msg-actions:focus-within { opacity: 1; }
body.theme-chatgpt .msg-action-btn:focus-visible {
  color: var(--fg);
  background: var(--item-hover);
}

/* ---------- 输入区（gpt composer） ---------- */
body.theme-chatgpt .composer-wrap {
  padding: 0 16px 18px;
  background: var(--bg-main);
}
body.empty-chat.theme-chatgpt .composer-wrap {
  /* 跟在欢迎语下方，不贴死底 */
}

body.theme-chatgpt .composer {
  max-width: var(--msg-max);
  padding: 8px 10px 8px 12px;
  background: var(--composer-bg);
  border: var(--composer-border);
  border-radius: var(--composer-radius);
  box-shadow: var(--composer-shadow);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
body.theme-chatgpt .composer:focus-within {
  border-color: var(--composer-focus);
}
body.theme-chatgpt:not(.cgpt-dark) .composer:focus-within {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}
html[data-theme="light"] body.theme-chatgpt .composer:focus-within {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

body.theme-chatgpt .composer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
body.theme-chatgpt .composer-grid #input {
  order: -1;
  flex: 1 1 100%;
  min-height: 28px;
}
body.theme-chatgpt .composer-picker {
  margin-left: auto;
}
body.theme-chatgpt .composer-grid textarea,
body.theme-chatgpt #input {
  font-size: 16px;
  line-height: 1.5;
  padding: 7px 4px;
  color: var(--fg);
}
body.theme-chatgpt #input::placeholder { color: var(--text-tertiary); }

body.theme-chatgpt .attach-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--fg-dim);
  flex-shrink: 0;
  align-self: center;
}
body.theme-chatgpt .mic-area {
  gap: 4px;
  align-self: center;
  padding-bottom: 1px;
}
body.theme-chatgpt .mic-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--fg-dim);
}
body.theme-chatgpt .voice-pill {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 50%;
  background: var(--send-bg);
  color: var(--send-fg);
  justify-content: center;
}
body.theme-chatgpt .voice-pill span { display: none; }
body.theme-chatgpt .voice-pill:hover { opacity: 0.85; }

body.theme-chatgpt .send-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #c9d7f5;
  color: #1f2937;
  align-self: center;
}
body.theme-chatgpt .send-btn:hover { opacity: 0.92; }
body.theme-chatgpt .send-btn:disabled,
body.theme-chatgpt .send-btn[aria-disabled="true"] { opacity: 0.55; }
html[data-theme="dark"] body.theme-chatgpt .send-btn,
body.theme-chatgpt.cgpt-dark .send-btn {
  background: #8aa4d6;
  color: #111827;
}
body.theme-chatgpt .stop-btn {
  background: var(--fg);
  color: var(--bg-main);
}

body.theme-chatgpt .composer-hint {
  max-width: var(--msg-max);
  padding: 12px 0 0;
  margin: 0 auto;
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ---------- 弹层 / 按钮 ---------- */
body.theme-chatgpt .primary-btn,
body.theme-chatgpt .login-card button:not(.auth-tab) {
  background: var(--send-bg);
  color: var(--send-fg);
}
body.theme-chatgpt .modal-tabs .tab.active {
  color: var(--fg);
  border-bottom-color: var(--fg);
}
body.theme-chatgpt .modal {
  background: var(--bg-panel);
  color: var(--fg);
  border: 1px solid var(--border-strong);
}
body.theme-chatgpt #settings-status { color: #2a9d3f; }

/* 主题切换按钮（JS 注入） */
body.theme-chatgpt .cgpt-theme-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
}
body.theme-chatgpt .cgpt-theme-btn:hover {
  background: var(--item-hover);
  color: var(--fg);
}

/* ---------- 当前聊天操作 ---------- */
body.theme-chatgpt .session-title-bar {
  display: inline-flex;
  max-width: min(340px, 36vw);
  overflow: hidden;
  padding: 6px 9px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--fg-dim);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}
body.theme-chatgpt .session-title-bar:hover { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .chatgpt-header-action {
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--fg-dim);
  padding: 7px 9px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
body.theme-chatgpt .chatgpt-header-action:hover { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .chatgpt-header-action { margin-right: 2px; }
body.theme-chatgpt .chatgpt-more-menu {
  min-width: 205px;
  max-height: min(60vh, 420px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 5px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--bg-menu);
  color: var(--fg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
  z-index: 180;
}
body.theme-chatgpt .chatgpt-more-menu button {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 8px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: inherit;
  text-align: left;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}
body.theme-chatgpt .chatgpt-more-menu button:focus-visible,
body.theme-chatgpt .chatgpt-more-menu button:hover { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-more-menu button small { color: var(--fg-dim); font-size: 10px; text-align: right; }

/* ---------- 当前聊天文件弹窗 ---------- */
body.theme-chatgpt .chatgpt-session-files-modal { width: min(500px, 94vw); }
body.theme-chatgpt .chatgpt-session-file-list { display: flex; flex-direction: column; gap: 6px; max-height: 48vh; overflow-y: auto; }
body.theme-chatgpt .chatgpt-session-file {
  display: grid;
  grid-template-columns: 25px 1fr auto;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--fg);
  text-align: left;
  cursor: pointer;
}
body.theme-chatgpt .chatgpt-session-file:hover { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-session-file > span:nth-child(2) { display: flex; min-width: 0; flex-direction: column; gap: 2px; }
body.theme-chatgpt .chatgpt-session-file strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
body.theme-chatgpt .chatgpt-session-file small { color: var(--fg-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body.theme-chatgpt .chatgpt-session-file-icon { display: inline-flex; align-items: center; justify-content: center; width: 25px; height: 25px; border-radius: 7px; background: var(--item-hover); color: var(--fg-dim); }
body.theme-chatgpt .chatgpt-session-file-add { color: var(--fg-dim); font-size: 11px; }

/* ---------- ChatGPT 专属设置 ---------- */
body.theme-chatgpt .chatgpt-settings-modal { width: min(760px, 94vw); }
body.theme-chatgpt .chatgpt-settings-layout { display: grid; grid-template-columns: 174px minmax(0, 1fr); gap: 20px; min-height: 390px; }
body.theme-chatgpt .chatgpt-settings-tabs { display: flex; flex-direction: column; gap: 2px; padding-right: 10px; border-right: 1px solid var(--border); }
body.theme-chatgpt .chatgpt-settings-tab { width: 100%; padding: 8px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--fg-dim); text-align: left; font: inherit; font-size: 12px; cursor: pointer; }
body.theme-chatgpt .chatgpt-settings-tab:hover,
body.theme-chatgpt .chatgpt-settings-tab.active,
body.theme-chatgpt .chatgpt-settings-tab[aria-selected="true"] { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .chatgpt-settings-tab.active,
body.theme-chatgpt .chatgpt-settings-tab[aria-selected="true"] { font-weight: 600; }
body.theme-chatgpt .chatgpt-settings-panel { min-width: 0; max-height: min(54vh, 500px); overflow-y: auto; padding-right: 4px; }
body.theme-chatgpt .chatgpt-settings-section { padding: 12px 0; border-top: 1px solid var(--border); }
body.theme-chatgpt .chatgpt-settings-section:first-of-type { border-top: 0; }
body.theme-chatgpt .chatgpt-settings-section h3 { margin: 0 0 10px; font-size: 13px; }
body.theme-chatgpt .chatgpt-settings-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
body.theme-chatgpt .chatgpt-settings-row > span { display: flex; min-width: 0; flex-direction: column; gap: 3px; }
body.theme-chatgpt .chatgpt-settings-row strong { font-size: 13px; }
body.theme-chatgpt .chatgpt-settings-row small,
body.theme-chatgpt .chatgpt-settings-note { color: var(--fg-dim); font-size: 11px; line-height: 1.45; }
body.theme-chatgpt .chatgpt-settings-select { min-width: 120px; padding: 7px 8px; border: 1px solid var(--border-strong); border-radius: 7px; background: var(--bg-panel); color: var(--fg); font: inherit; font-size: 12px; }
body.theme-chatgpt .chatgpt-settings-row input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--fg); }
body.theme-chatgpt .chatgpt-settings-unavailable { padding: 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-settings-unavailable strong { font-size: 14px; }
body.theme-chatgpt .chatgpt-settings-unavailable p { margin: 8px 0; color: var(--fg-dim); font-size: 12px; line-height: 1.55; }
body.theme-chatgpt .chatgpt-settings-unavailable span { color: var(--fg-dim); font-size: 11px; }
body.theme-chatgpt .chatgpt-local-balance { margin: 0 0 12px; padding: 10px 12px; border-radius: 8px; background: var(--item-hover); color: var(--fg-dim); font-size: 12px; }
body.theme-chatgpt .chatgpt-local-balance strong { color: var(--fg); font-size: 16px; }
body.theme-chatgpt .chatgpt-shortcut-table { display: grid; gap: 7px; margin-bottom: 14px; }
body.theme-chatgpt .chatgpt-shortcut-table > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--fg-dim); font-size: 12px; }
body.theme-chatgpt .chatgpt-shortcut-table kbd { padding: 3px 6px; border: 1px solid var(--border-strong); border-radius: 5px; background: var(--item-hover); color: var(--fg); font-size: 11px; }
body.theme-chatgpt .chatgpt-local-capability-note { display: flex; align-items: flex-start; gap: 8px; margin: 0 0 16px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 9px; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-local-capability-note strong { color: var(--fg); font-size: 12px; white-space: nowrap; }
body.theme-chatgpt .chatgpt-local-capability-note span { color: var(--fg-dim); font-size: 11px; line-height: 1.45; }
body.theme-chatgpt [aria-disabled="true"],
body.theme-chatgpt :disabled {
  cursor: not-allowed;
}
body.theme-chatgpt .user-menu-balance { display: none; }

/* ---------- 图片、文件库、插件和研究工作区 ---------- */
body.theme-chatgpt .chatgpt-image-create-card,
body.theme-chatgpt .chatgpt-plugin-workspace-card,
body.theme-chatgpt .chatgpt-research-panel {
  margin: 16px 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-panel);
}
body.theme-chatgpt .chatgpt-image-create-card h2,
body.theme-chatgpt .chatgpt-plugin-workspace-card h2,
body.theme-chatgpt .chatgpt-research-panel h2 { margin: 0 0 7px; font-size: 16px; }
body.theme-chatgpt .chatgpt-image-create-card p,
body.theme-chatgpt .chatgpt-plugin-workspace-card p,
body.theme-chatgpt .chatgpt-research-panel p { margin: 0 0 12px; color: var(--fg-dim); font-size: 12px; line-height: 1.5; }
body.theme-chatgpt .chatgpt-image-create-card textarea,
body.theme-chatgpt .chatgpt-research-panel textarea { display: block; width: 100%; min-height: 80px; resize: vertical; }
body.theme-chatgpt .chatgpt-image-create-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; }
body.theme-chatgpt .chatgpt-image-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; margin-top: 14px; }
body.theme-chatgpt .chatgpt-image-card { overflow: hidden; border: 1px solid var(--border); border-radius: 13px; background: var(--bg-panel); }
body.theme-chatgpt .chatgpt-image-card > img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-image-card-copy { display: flex; flex-direction: column; gap: 5px; padding: 10px; }
body.theme-chatgpt .chatgpt-image-card-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
body.theme-chatgpt .chatgpt-image-card-copy small { overflow: hidden; color: var(--fg-dim); text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
body.theme-chatgpt .chatgpt-image-card-actions,
body.theme-chatgpt .chatgpt-plugin-actions { display: flex; flex-wrap: wrap; gap: 6px; }
body.theme-chatgpt .chatgpt-image-card-actions .btn-secondary { padding: 5px 7px; font-size: 11px; }
body.theme-chatgpt .chatgpt-library-row { min-height: 64px; }
body.theme-chatgpt .chatgpt-library-asset { display: inline-flex; align-items: center; justify-content: center; width: 58px; height: 50px; overflow: hidden; border-radius: 8px; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-library-preview { display: block; width: 100%; height: 100%; object-fit: cover; }
body.theme-chatgpt .chatgpt-library-asset audio { width: 54px; }
body.theme-chatgpt .chatgpt-library-actions { display: flex; align-items: center; gap: 6px; }
body.theme-chatgpt .chatgpt-library-actions .btn-secondary { padding: 5px 7px; font-size: 11px; }
body.theme-chatgpt .chatgpt-library-file-icon { color: var(--fg-dim); font-size: 20px; }
body.theme-chatgpt .chatgpt-research-tabs { display: flex; gap: 3px; margin: 16px 0 0; border-bottom: 1px solid var(--border); }
body.theme-chatgpt .chatgpt-research-tabs button { padding: 8px 12px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--fg-dim); cursor: pointer; }
body.theme-chatgpt .chatgpt-research-tabs button.active { border-bottom-color: var(--fg); color: var(--fg); }
body.theme-chatgpt .chatgpt-research-suggestions { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 8px; margin-bottom: 12px; }
body.theme-chatgpt .chatgpt-research-suggestions button,
body.theme-chatgpt .chatgpt-research-report-list button { padding: 10px; border: 1px solid var(--border); border-radius: 9px; background: transparent; color: var(--fg); text-align: left; cursor: pointer; }
body.theme-chatgpt .chatgpt-research-suggestions button:hover,
body.theme-chatgpt .chatgpt-research-report-list button:hover { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-research-report-list { display: grid; gap: 7px; }
body.theme-chatgpt .chatgpt-research-report-list button { display: flex; justify-content: space-between; gap: 12px; }
body.theme-chatgpt .chatgpt-research-report-list small { color: var(--fg-dim); }
body.theme-chatgpt .chatgpt-health-list { display: grid; gap: 8px; }
body.theme-chatgpt .chatgpt-health-row { display: flex; align-items: center; gap: 10px; padding: 9px; border-radius: 9px; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-health-row > span:last-child { display: flex; min-width: 0; flex-direction: column; gap: 2px; }
body.theme-chatgpt .chatgpt-health-row small { color: var(--fg-dim); font-size: 11px; }
body.theme-chatgpt .chatgpt-health-dot { display: inline-flex; align-items: center; justify-content: center; width: 21px; height: 21px; border-radius: 50%; font-weight: 700; }
body.theme-chatgpt .chatgpt-health-dot.ok { background: #d9f4e4; color: #167347; }
body.theme-chatgpt .chatgpt-health-dot.warn { background: #fff0c7; color: #8a5b00; }

/* ---------- 官方添加菜单 / 搜索 ---------- */
body.theme-chatgpt .add-menu.chatgpt-add-menu {
  min-width: 330px;
  max-width: min(360px, calc(100vw - 16px));
  max-height: min(70vh, 520px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 8px;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  background: var(--bg-menu);
  color: var(--fg);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .14);
  z-index: 190;
}
body.theme-chatgpt .chatgpt-add-menu .add-menu-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 7px 9px;
  border-radius: 10px;
  color: var(--fg);
  background: transparent;
  text-align: left;
}
body.theme-chatgpt .chatgpt-add-menu .add-menu-item:hover,
body.theme-chatgpt .chatgpt-add-menu .add-menu-item:focus-visible,
body.theme-chatgpt .chatgpt-add-menu .add-menu-item.active,
body.theme-chatgpt .chatgpt-add-menu .add-menu-item[aria-checked="true"] { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-add-menu .add-menu-item:focus-visible {
  outline: 2px solid var(--fg-dim);
  outline-offset: -2px;
}
body.theme-chatgpt .chatgpt-add-menu .add-menu-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--item-hover);
  color: var(--fg-dim);
  font-size: 18px;
}
body.theme-chatgpt .chatgpt-add-menu .add-menu-item.active .add-menu-icon,
body.theme-chatgpt .chatgpt-add-menu .add-menu-item[aria-checked="true"] .add-menu-icon { color: var(--fg); }
body.theme-chatgpt .chatgpt-add-menu .add-menu-label { min-width: 0; }
body.theme-chatgpt .chatgpt-add-menu .add-menu-label > span { font-size: 13px; line-height: 1.25; }
body.theme-chatgpt .chatgpt-add-menu .add-menu-label small { color: var(--fg-dim); font-size: 11px; line-height: 1.25; }
body.theme-chatgpt .chatgpt-add-menu .add-menu-right { min-width: 22px; justify-content: center; color: var(--fg); font-size: 13px; }

body.theme-chatgpt .chatgpt-search-layer { background: rgba(0, 0, 0, .38); }
body.theme-chatgpt .chatgpt-search-dialog {
  width: min(640px, calc(100vw - 32px));
  max-height: min(640px, calc(100vh - 80px));
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  background: var(--bg-panel);
  color: var(--fg);
  box-shadow: 0 20px 70px rgba(0, 0, 0, .2);
}
body.theme-chatgpt .chatgpt-search-heading { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px 10px; }
body.theme-chatgpt .chatgpt-search-heading h2 { margin: 0; font-size: 18px; }
body.theme-chatgpt .chatgpt-search-close { width: 30px; height: 30px; border: 0; border-radius: 8px; background: transparent; color: var(--fg-dim); font-size: 20px; cursor: pointer; }
body.theme-chatgpt .chatgpt-search-close:hover { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .chatgpt-search-input-wrap {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 16px 10px;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  color: var(--fg-dim);
}
body.theme-chatgpt .chatgpt-search-input-wrap:focus-within { border-color: var(--fg-dim); box-shadow: 0 0 0 2px color-mix(in srgb, var(--fg-dim) 18%, transparent); }
body.theme-chatgpt .chatgpt-search-input-wrap input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--fg); font: inherit; font-size: 14px; }
body.theme-chatgpt .chatgpt-search-results { max-height: min(430px, calc(100vh - 230px)); overflow-y: auto; padding: 2px 10px 10px; }
body.theme-chatgpt .chatgpt-search-result { display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px; border: 0; border-radius: 9px; background: transparent; color: var(--fg); text-align: left; cursor: pointer; }
body.theme-chatgpt .chatgpt-search-result:hover,
body.theme-chatgpt .chatgpt-search-result.selected,
body.theme-chatgpt .chatgpt-search-result[aria-selected="true"] { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-search-result-icon { width: 24px; color: var(--fg-dim); text-align: center; }
body.theme-chatgpt .chatgpt-search-result-copy { display: flex; min-width: 0; flex: 1; flex-direction: column; gap: 3px; }
body.theme-chatgpt .chatgpt-search-result-copy strong { overflow: hidden; font-size: 13px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
body.theme-chatgpt .chatgpt-search-result-copy small { color: var(--fg-dim); font-size: 11px; }
body.theme-chatgpt .chatgpt-search-empty { padding: 34px 16px; color: var(--fg-dim); text-align: center; font-size: 13px; }
body.theme-chatgpt .chatgpt-search-hints { display: flex; align-items: center; gap: 6px; padding: 10px 18px 14px; border-top: 1px solid var(--border); color: var(--fg-dim); font-size: 11px; }
body.theme-chatgpt .chatgpt-search-hints kbd { min-width: 20px; padding: 2px 5px; border: 1px solid var(--border-strong); border-radius: 5px; background: var(--item-hover); color: var(--fg); text-align: center; }

/* ---------- 动态状态与可用性 ---------- */
body.theme-chatgpt .chatgpt-add-menu .add-menu-item[aria-disabled="true"],
body.theme-chatgpt .chatgpt-more-menu button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: .55;
}
body.theme-chatgpt .msg-assistant .msg-content > blockquote {
  margin: 10px 0 0;
  padding: 9px 12px;
  border-inline-start: 3px solid #c0392b;
  border-radius: 6px;
  background: color-mix(in srgb, #c0392b 8%, var(--bg-panel));
  color: var(--fg);
}
body.theme-chatgpt .chatgpt-settings-panel,
body.theme-chatgpt .chatgpt-session-files-modal,
body.theme-chatgpt .chatgpt-library-picker-modal,
body.theme-chatgpt .chatgpt-health-modal {
  overscroll-behavior: contain;
}
body.theme-chatgpt .chatgpt-search-dialog,
body.theme-chatgpt .chatgpt-settings-modal,
body.theme-chatgpt .chatgpt-library-picker-modal,
body.theme-chatgpt .chatgpt-health-modal {
  padding-bottom: max(20px, env(safe-area-inset-bottom));
}

/* ---------- 语音模式、临时聊天与顶栏状态 ---------- */
body.theme-chatgpt .private-top-btn,
body.theme-chatgpt .chatgpt-header-action { min-height: 32px; }
body.theme-chatgpt .private-top-btn { padding: 6px 10px; border-radius: 8px; color: var(--fg-dim); font-size: 12px; }
body.theme-chatgpt .private-top-btn:hover,
body.theme-chatgpt .private-top-btn.active { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .incognito-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 34px;
  padding: 7px 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--item-hover) 72%, var(--bg-main));
  color: var(--fg-dim);
  font-size: 12px;
}
body.theme-chatgpt .chatgpt-voice-mode-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: min(var(--msg-max), calc(100% - 32px));
  margin: 0 auto 10px;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--bg-panel);
  color: var(--fg);
  box-shadow: 0 6px 22px rgba(0, 0, 0, .08);
  font-size: 12px;
}
body.theme-chatgpt .chatgpt-voice-mode-controls > div { display: flex; gap: 6px; }
body.theme-chatgpt .chatgpt-voice-mode-controls button { padding: 5px 9px; border: 1px solid var(--border-strong); border-radius: 7px; background: transparent; color: var(--fg); font: inherit; cursor: pointer; }
body.theme-chatgpt .chatgpt-voice-mode-controls button:hover { background: var(--item-hover); }

/* ---------- 工作区统一视觉 ---------- */
body.theme-chatgpt .workspace-view { flex: 1 1 auto; min-height: 0; overflow-y: auto; background: var(--bg-main); }
body.theme-chatgpt .workspace-inner { width: min(1040px, calc(100% - 64px)); margin: 0 auto; padding: 40px 0 68px; }
body.theme-chatgpt .workspace-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
body.theme-chatgpt .workspace-heading h1 { margin: 0; color: var(--fg); font-size: 28px; font-weight: 600; letter-spacing: -.02em; }
body.theme-chatgpt .workspace-heading p { margin: 7px 0 0; color: var(--fg-dim); font-size: 13px; line-height: 1.5; }
body.theme-chatgpt .workspace-actions,
body.theme-chatgpt .workspace-toolbar { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
body.theme-chatgpt .workspace-actions { justify-content: flex-end; }
body.theme-chatgpt .workspace-primary-btn,
body.theme-chatgpt .workspace-secondary-btn,
body.theme-chatgpt .workspace-danger-btn,
body.theme-chatgpt .btn-secondary { min-height: 32px; padding: 7px 11px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--bg-panel); color: var(--fg); font: inherit; font-size: 12px; cursor: pointer; text-decoration: none; }
body.theme-chatgpt .workspace-primary-btn { border-color: var(--fg); background: var(--fg); color: var(--bg-main); }
body.theme-chatgpt .workspace-danger-btn { color: #c0392b; }
body.theme-chatgpt .workspace-primary-btn:hover,
body.theme-chatgpt .workspace-secondary-btn:hover,
body.theme-chatgpt .workspace-danger-btn:hover,
body.theme-chatgpt .btn-secondary:hover { background: var(--item-hover); color: var(--fg); }
body.theme-chatgpt .workspace-primary-btn:hover { filter: brightness(.92); }
body.theme-chatgpt .workspace-search { display: flex; align-items: center; gap: 8px; max-width: 440px; flex: 1; padding: 9px 11px; border: 1px solid var(--border-strong); border-radius: 9px; color: var(--fg-dim); }
body.theme-chatgpt .workspace-search:focus-within { border-color: var(--fg-dim); }
body.theme-chatgpt .workspace-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--fg); font: inherit; font-size: 13px; }
body.theme-chatgpt .workspace-artifact-list,
body.theme-chatgpt .workspace-table { overflow: hidden; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-panel); }
body.theme-chatgpt .workspace-artifact-row { border-bottom: 1px solid var(--border); }
body.theme-chatgpt .workspace-artifact-row:last-child { border-bottom: 0; }
body.theme-chatgpt .workspace-artifact-row:hover { background: var(--item-hover); }
body.theme-chatgpt .workspace-empty { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 80px 24px; color: var(--fg-dim); text-align: center; }
body.theme-chatgpt .workspace-empty strong { color: var(--fg); font-size: 16px; }
body.theme-chatgpt .workspace-empty span { max-width: 440px; font-size: 13px; line-height: 1.6; }

/* ---------- 本地项目 / GPT 入口 ---------- */
body.theme-chatgpt .chatgpt-parity-local-nav {
  position: relative;
}
body.theme-chatgpt .chatgpt-parity-local-nav .chatgpt-parity-nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--fg-dim);
  font-size: 16px;
  line-height: 1;
}
body.theme-chatgpt .chatgpt-parity-local-nav:hover .chatgpt-parity-nav-icon,
body.theme-chatgpt .chatgpt-parity-local-nav[aria-current="page"] .chatgpt-parity-nav-icon {
  color: var(--fg);
}
body.theme-chatgpt .chatgpt-local-gpt-workspace { display: grid; gap: 18px; }
body.theme-chatgpt .chatgpt-local-gpt-card,
body.theme-chatgpt .chatgpt-local-gpt-list {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--bg-panel);
}
body.theme-chatgpt .chatgpt-local-gpt-card h2,
body.theme-chatgpt .chatgpt-local-gpt-list h2 { margin: 0; color: var(--fg); font-size: 16px; }
body.theme-chatgpt .chatgpt-local-gpt-note,
body.theme-chatgpt .chatgpt-local-gpt-status { color: var(--fg-dim); font-size: 12px; line-height: 1.55; }
body.theme-chatgpt .chatgpt-local-gpt-note { margin: 7px 0 15px; }
body.theme-chatgpt .chatgpt-local-gpt-field { display: grid; gap: 6px; margin-top: 12px; color: var(--fg-dim); font-size: 12px; }
body.theme-chatgpt .chatgpt-local-gpt-field input,
body.theme-chatgpt .chatgpt-local-gpt-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg-main);
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  resize: vertical;
}
body.theme-chatgpt .chatgpt-local-gpt-field input:focus,
body.theme-chatgpt .chatgpt-local-gpt-field textarea:focus { border-color: var(--fg-dim); outline: 0; }
body.theme-chatgpt .chatgpt-local-gpt-form-actions,
body.theme-chatgpt .chatgpt-local-gpt-item-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; }
body.theme-chatgpt .chatgpt-local-gpt-form-actions { margin-top: 15px; }
body.theme-chatgpt .chatgpt-local-gpt-list { display: grid; gap: 10px; }
body.theme-chatgpt .chatgpt-local-gpt-list-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 2px; }
body.theme-chatgpt .chatgpt-local-gpt-list-heading > span { color: var(--fg-dim); font-size: 12px; }
body.theme-chatgpt .chatgpt-local-gpt-item { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; }
body.theme-chatgpt .chatgpt-local-gpt-item-copy { min-width: 0; flex: 1; }
body.theme-chatgpt .chatgpt-local-gpt-item-copy h3 { margin: 0; color: var(--fg); font-size: 14px; }
body.theme-chatgpt .chatgpt-local-gpt-item-copy p,
body.theme-chatgpt .chatgpt-local-gpt-item-copy small { display: block; margin: 4px 0 0; overflow-wrap: anywhere; color: var(--fg-dim); font-size: 12px; line-height: 1.5; }
body.theme-chatgpt .chatgpt-local-gpt-item-actions { justify-content: flex-end; }
body.theme-chatgpt .chatgpt-local-gpt-item-actions button { white-space: nowrap; }

/* ---------- 键盘焦点 / 小屏 ---------- */
body.theme-chatgpt :where(button, a, input, textarea, select, summary):focus-visible {
  outline: 2px solid var(--fg-dim);
  outline-offset: 2px;
}
body.theme-chatgpt .chatgpt-settings-modal .modal-footer { position: sticky; bottom: -20px; padding: 12px 0 0; background: var(--bg-panel); }
body.theme-chatgpt .chatgpt-library-picker-modal,
body.theme-chatgpt .chatgpt-health-modal { width: min(540px, 94vw); }
body.theme-chatgpt .chatgpt-library-picker-search { max-width: none; margin: 0 0 12px; }
body.theme-chatgpt .chatgpt-library-picker-list { display: flex; flex-direction: column; gap: 6px; max-height: 48vh; overflow-y: auto; }
body.theme-chatgpt .chatgpt-library-picker-row { display: grid; grid-template-columns: 46px minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 8px; border-radius: 9px; }
body.theme-chatgpt .chatgpt-library-picker-row:hover { background: var(--item-hover); }
body.theme-chatgpt .chatgpt-library-picker-asset { display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 40px; overflow: hidden; border-radius: 7px; background: var(--item-hover); }
body.theme-chatgpt .chatgpt-library-picker-preview { display: block; width: 100%; height: 100%; object-fit: cover; }
body.theme-chatgpt .chatgpt-library-picker-copy { display: flex; min-width: 0; flex-direction: column; gap: 3px; }
body.theme-chatgpt .chatgpt-library-picker-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
body.theme-chatgpt .chatgpt-library-picker-copy small { overflow: hidden; color: var(--fg-dim); text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
body.theme-chatgpt .chatgpt-library-picker-actions { display: flex; gap: 6px; }
body.theme-chatgpt .chatgpt-library-picker-actions .btn-secondary { padding: 5px 7px; font-size: 11px; }
body.theme-chatgpt .chatgpt-health-modal .chatgpt-health-list { max-height: 52vh; overflow-y: auto; }

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  body.theme-chatgpt .chatgpt-settings-layout { grid-template-columns: 1fr; gap: 12px; }
  body.theme-chatgpt .chatgpt-settings-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 190px; overflow-y: auto; padding: 0 0 8px; border-right: 0; border-bottom: 1px solid var(--border); }
  body.theme-chatgpt .chatgpt-settings-panel { max-height: none; }
  body.theme-chatgpt .sidebar {
    position: absolute;
    z-index: 100;
    height: 100%;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.12);
  }
  body.theme-chatgpt .welcome-title { font-size: 24px; }
  body.empty-chat.theme-chatgpt .main::before,
  body.empty-chat.theme-chatgpt .main::after { flex: 0.4 1 0; }
  body.theme-chatgpt .workspace-inner { width: calc(100% - 32px); padding-top: 28px; }
  body.theme-chatgpt .workspace-heading { flex-direction: column; }
  body.theme-chatgpt .workspace-actions { justify-content: flex-start; }
  body.theme-chatgpt .chatgpt-add-menu { min-width: 0; width: min(340px, calc(100vw - 16px)); }
  body.theme-chatgpt .chatgpt-search-dialog { width: calc(100vw - 20px); }
  body.theme-chatgpt .chatgpt-search-hints { display: none; }
  body.theme-chatgpt .chatgpt-voice-mode-controls { width: calc(100% - 32px); }
  body.theme-chatgpt #chatgpt-action-feedback { right: 12px; bottom: 12px; }
  body.theme-chatgpt .chatgpt-local-gpt-item { flex-direction: column; }
  body.theme-chatgpt .chatgpt-local-gpt-item-actions { justify-content: flex-start; }
}

@media (max-width: 680px) {
  body.theme-chatgpt .composer-wrap {
    padding-bottom: calc(10px + env(safe-area-inset-bottom));
  }
  /* 移动端对齐官方图4：双层卡片 + 紧凑思考强度/模型胶囊 */
  body.theme-chatgpt .composer {
    border-radius: 24px;
    padding: 10px 14px 10px;
  }
  body.theme-chatgpt .composer-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 10px;
  }
  body.theme-chatgpt .composer-grid #input {
    order: 1;
    width: 100%;
    flex: 1 1 100%;
    min-height: 40px;
    padding: 2px 2px 6px;
    font-size: 16px;
  }
  body.theme-chatgpt .composer-grid .attach-btn {
    order: 2;
    margin: 0;
  }
  body.theme-chatgpt .composer-picker {
    order: 3;
    margin-left: auto;
    max-width: 140px;
  }
  body.theme-chatgpt .composer-model-btn {
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 999px;
    background: var(--item-hover, rgba(0, 0, 0, 0.06));
    color: var(--fg);
    white-space: nowrap;
  }
  html[data-theme="dark"] body.theme-chatgpt .composer-model-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  body.theme-chatgpt .composer-model-btn span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  body.theme-chatgpt .composer-grid .mic-area {
    order: 4;
    margin-left: 0;
  }
  body.theme-chatgpt .composer-grid #send-btn,
  body.theme-chatgpt .composer-grid #stop-btn {
    order: 5;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.theme-chatgpt .msg-actions { transition: none; }
  body.theme-chatgpt #chatgpt-action-feedback { transition: none; }
  body.theme-chatgpt .chatgpt-search-dialog,
  body.theme-chatgpt .chatgpt-settings-modal,
  body.theme-chatgpt .chatgpt-add-menu { scroll-behavior: auto; }
}

@media (forced-colors: active) {
  body.theme-chatgpt .user-menu,
  body.theme-chatgpt .model-menu,
  body.theme-chatgpt .chatgpt-add-menu,
  body.theme-chatgpt .chatgpt-search-dialog,
  body.theme-chatgpt .chatgpt-more-menu,
  body.theme-chatgpt .chatgpt-settings-modal,
  body.theme-chatgpt .chatgpt-library-picker-modal,
  body.theme-chatgpt .chatgpt-health-modal,
  body.theme-chatgpt #chatgpt-action-feedback,
  body.theme-chatgpt .chatgpt-local-codex-card,
  body.theme-chatgpt .chatgpt-local-gpt-card,
  body.theme-chatgpt .chatgpt-local-gpt-list,
  body.theme-chatgpt .chatgpt-local-gpt-item {
    background: Canvas;
    color: CanvasText;
    border-color: CanvasText;
    box-shadow: none;
  }
  body.theme-chatgpt .chatgpt-add-menu .add-menu-item:hover,
  body.theme-chatgpt .chatgpt-add-menu .add-menu-item:focus-visible,
  body.theme-chatgpt .chatgpt-add-menu .add-menu-item[aria-checked="true"],
  body.theme-chatgpt .chatgpt-thinking-option[aria-checked="true"],
  body.theme-chatgpt .chatgpt-search-result:hover,
  body.theme-chatgpt .chatgpt-search-result:focus-visible,
  body.theme-chatgpt .chatgpt-search-result[aria-selected="true"],
  body.theme-chatgpt .chatgpt-settings-tab[aria-selected="true"] {
    background: Highlight;
    color: HighlightText;
  }
  body.theme-chatgpt .chatgpt-search-input-wrap,
  body.theme-chatgpt .chatgpt-settings-select,
  body.theme-chatgpt .chatgpt-image-create-card,
  body.theme-chatgpt .chatgpt-plugin-workspace-card,
  body.theme-chatgpt .chatgpt-research-panel,
  body.theme-chatgpt .chatgpt-local-gpt-field input,
  body.theme-chatgpt .chatgpt-local-gpt-field textarea {
    border-color: CanvasText;
    background: Canvas;
    color: CanvasText;
  }
  body.theme-chatgpt .msg-assistant .msg-content > blockquote {
    border-color: CanvasText;
    background: Canvas;
    color: CanvasText;
  }
}

/* Official ChatGPT wait: gray "正在处理" status with elapsed seconds. */
body.theme-chatgpt .waiting-chatgpt {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: #8e8ea0;
  font-size: 16px;
  line-height: 1.5;
  animation: chatgpt-waiting-pulse 1.6s infinite ease-in-out;
}
body.theme-chatgpt .waiting-chatgpt-label,
body.theme-chatgpt .waiting-elapsed {
  font: inherit;
  color: inherit;
}
@keyframes chatgpt-waiting-pulse {
  0%, 100% { opacity: .62; }
  50% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  body.theme-chatgpt .waiting-chatgpt { animation: none; opacity: 1; }
}

/* ---------- 消息更多操作弹出菜单 ---------- */
body.theme-chatgpt .message-context-menu {
  min-width: 180px;
  max-width: min(290px, calc(100vw - 16px));
  max-height: min(70vh, 480px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 6px;
  background: var(--bg-menu, #ffffff);
  color: var(--fg, #0d0d0d);
  border: 1px solid var(--border-strong, #e5e5e5);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.04);
  z-index: 200;
}
html[data-theme="dark"] body.theme-chatgpt .message-context-menu,
body.theme-chatgpt.cgpt-dark .message-context-menu {
  background: var(--bg-menu, #2f2f2f);
  color: var(--fg, #ececec);
  border-color: var(--border-strong, #424242);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45), 0 2px 8px rgba(0, 0, 0, 0.2);
}
body.theme-chatgpt .message-context-menu button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 34px;
  padding: 7px 12px;
  border: none;
  outline: none;
  border-radius: 8px;
  background: transparent;
  color: var(--fg);
  text-align: left;
  font: inherit;
  font-size: 13px;
  line-height: 1.4;
  cursor: pointer;
  white-space: nowrap;
  box-sizing: border-box;
}
body.theme-chatgpt .message-context-menu button:hover,
body.theme-chatgpt .message-context-menu button:focus,
body.theme-chatgpt .message-context-menu button:focus-visible {
  background: var(--item-hover);
  color: var(--fg);
  outline: none;
}