/* ============ 基础布局(与主题无关) ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font-body, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif);
  background: var(--bg-main, #fff);
  color: var(--fg, #1a1a1a);
  overflow: hidden;
}
.hidden { display: none !important; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 14px; }

.gemini-settings-menu {
  position: fixed; z-index: 180; width: 244px; max-height: min(78vh, 520px); overflow-y: auto;
  padding: 7px; background: var(--bg-menu, #fff); color: var(--fg, #222);
  border: 1px solid var(--border-strong, rgba(0,0,0,.12)); border-radius: 14px;
  box-shadow: 0 10px 32px rgba(0,0,0,.16); font-size: 13px;
}
.gemini-settings-menu button {
  display: block; width: 100%; padding: 9px 10px; border: 0; border-radius: 8px;
  background: transparent; color: inherit; text-align: left; font: inherit;
}
.gemini-settings-menu button:hover, .gemini-settings-menu button:focus-visible { background: var(--item-hover, rgba(0,0,0,.06)); outline: 0; }
.gemini-schedule-list { display: flex; flex-direction: column; gap: 6px; margin-top: 16px; max-height: 190px; overflow-y: auto; }
.gemini-schedule-row { display: flex; align-items: center; gap: 8px; padding: 8px 9px; border: 1px solid var(--border, #e5e5e5); border-radius: 9px; }
.gemini-schedule-row > span { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.gemini-schedule-row small { color: var(--fg-dim, #888); font-size: 11px; }
.gemini-schedule-row button { flex-shrink: 0; padding: 4px 6px; border: 0; border-radius: 6px; background: transparent; color: #c0392b; font-size: 11px; }
.gemini-schedule-row button:hover { background: rgba(192,57,43,.08); }

/* ---------- 登录 ---------- */
.login-layer {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-main, #f5f4ef);
}
.login-card {
  width: 340px; text-align: center; padding: 40px 32px;
  background: var(--bg-panel, #fff); border-radius: 16px;
  border: 1px solid var(--border, #e5e2d9);
  box-shadow: 0 8px 40px rgba(0,0,0,.06);
}
.login-logo { font-size: 40px; color: var(--accent, #d97757); margin-bottom: 8px; }
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-card p { font-size: 13px; color: var(--fg-dim, #888); margin-bottom: 20px; }
.login-card input {
  width: 100%; padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--border, #ddd); background: transparent; color: inherit;
  outline: none; margin-bottom: 12px;
}
.login-card button {
  width: 100%; padding: 10px; border-radius: 10px; border: none;
  background: var(--accent, #d97757); color: #fff; font-size: 15px;
}
.login-error { color: #d33; font-size: 13px; margin-top: 10px; min-height: 18px; }

/* ---------- 应用骨架 ---------- */
.app {
  display: flex;
  height: 100vh;
  height: 100dvh;
}

.sidebar {
  width: var(--sidebar-w, 264px); flex-shrink: 0;
  display: flex; flex-direction: column;
  background: var(--bg-sidebar, #f0eee6);
  border-right: 1px solid var(--border, transparent);
  transition: margin-left .25s ease;
}
body.sidebar-collapsed .sidebar { margin-left: calc(var(--sidebar-w, 264px) * -1); }
button.icon-btn.expand-btn { display: none; }
body.sidebar-collapsed button.icon-btn.expand-btn { display: inline-flex; }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 14px 8px;
}
.header-btns { display: flex; align-items: center; gap: 4px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; }
.brand-icon { color: var(--accent, #d97757); font-size: 18px; }

.new-chat-btn {
  margin: 8px 12px; padding: 9px 12px;
  display: flex; align-items: center; gap: 8px;
  border-radius: var(--radius-btn, 10px);
  border: var(--newchat-border, none);
  background: var(--newchat-bg, transparent);
  color: var(--newchat-fg, var(--accent, #d97757));
  font-size: 14px; font-weight: 500;
}
.new-chat-btn:hover { background: var(--newchat-bg-hover, rgba(0,0,0,.05)); }
.new-chat-btn .plus { font-size: 16px; line-height: 1; }

.session-list-title {
  padding: 12px 18px 6px; font-size: 11px; letter-spacing: .4px;
  color: var(--fg-dim, #8a8a8a); text-transform: uppercase;
}
.session-list { flex: 1; overflow-y: auto; padding: 0 8px; }
.session-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-radius: var(--radius-item, 8px);
  font-size: 13.5px; color: var(--fg, #333); cursor: pointer;
  margin-bottom: 1px; user-select: none;
}
.session-item:hover { background: var(--item-hover, rgba(0,0,0,.05)); }
.session-item.active { background: var(--item-active, rgba(0,0,0,.08)); }
.session-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-del {
  border: none; background: none; color: var(--fg-dim, #999);
  font-size: 11px; visibility: hidden; padding: 2px 4px;
}
.session-item:hover .session-del { visibility: visible; }

.sidebar-footer { padding: 10px 12px; border-top: 1px solid var(--border, rgba(0,0,0,.06)); }
.settings-btn {
  width: 100%; text-align: left; padding: 8px 10px;
  border: none; background: none; color: var(--fg, #444);
  border-radius: 8px; font-size: 13.5px;
}
.settings-btn:hover { background: var(--item-hover, rgba(0,0,0,.05)); }

/* ---------- 主区 ---------- */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-main, #fff); }

.topbar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; min-height: 52px;
  background: var(--bg-topbar, transparent);
  border-bottom: var(--topbar-border, none);
}
.topbar-right { flex: 1; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px;
  border: none; background: none; color: var(--fg-dim, #666); font-size: 15px;
}
.icon-btn:hover { background: var(--item-hover, rgba(0,0,0,.06)); }

.model-picker { position: relative; }
.model-picker-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px; font-size: 14.5px; font-weight: 500;
  border: none; border-radius: var(--radius-btn, 8px);
  background: none; color: var(--fg, #333);
}
.model-picker-btn:hover { background: var(--item-hover, rgba(0,0,0,.06)); }
.model-menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 30;
  min-width: 270px; padding: 6px;
  background: var(--bg-menu, #fff); border-radius: 14px;
  border: 1px solid var(--border, #e5e5e5);
  box-shadow: 0 10px 36px rgba(0,0,0,.14);
}
.model-item {
  display: flex; gap: 10px; align-items: center; width: 100%;
  padding: 8px 10px; border: none; background: none; text-align: left;
  border-radius: 9px; color: var(--fg, #333);
}
.model-item:hover { background: var(--item-hover, rgba(0,0,0,.05)); }
.mi-icon { width: 28px; height: 28px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 15px; flex-shrink: 0; }
.mi-icon.skin-claude { background: #f0e7dd; color: #d97757; }
.mi-icon.skin-chatgpt { background: #e8e8e8; color: #000; }
.mi-icon.skin-grok { background: #1a1a1a; color: #fff; }
.mi-icon.skin-gemini { background: #e8f0fe; color: #4285f4; }
.mi-body { display: flex; flex-direction: column; }
.mi-label { font-size: 14px; font-weight: 500; }
.mi-sub { font-size: 11.5px; color: var(--fg-dim, #999); }

/* ---------- 聊天区 ---------- */
.chat-scroll { flex: 1; overflow-y: auto; }
.messages { max-width: var(--chat-w, 760px); margin: 0 auto; padding: 24px 20px 12px; }

.welcome {
  max-width: var(--chat-w, 760px); margin: 0 auto;
  padding: 18vh 24px 0; text-align: var(--welcome-align, center);
}
.welcome-icon { font-size: 34px; color: var(--accent, #d97757); margin-bottom: 14px; }
.welcome-title { font-family: var(--font-display, inherit); font-size: var(--welcome-size, 30px); font-weight: var(--welcome-weight, 500); }
.welcome-sub { margin-top: 8px; color: var(--fg-dim, #888); font-size: 16px; }

.msg { display: flex; gap: 14px; margin-bottom: 26px; }
.msg-avatar {
  width: 30px; height: 30px; flex-shrink: 0; border-radius: var(--avatar-radius, 50%);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
  background: var(--avatar-bg, #eee); color: var(--avatar-fg, #555);
}
.msg-assistant .msg-avatar { background: var(--avatar-ai-bg, #f0e7dd); color: var(--avatar-ai-fg, var(--accent, #d97757)); }
.msg-body { min-width: 0; flex: 1; }
.msg-content { font-size: 15px; line-height: 1.75; word-wrap: break-word; }
.msg-content p { margin: 0 0 .8em; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content ul, .msg-content ol { margin: 0 0 .8em 1.4em; }
.msg-content h1, .msg-content h2, .msg-content h3 { margin: 1em 0 .5em; }
.msg-content blockquote {
  border-left: 3px solid var(--accent, #d97757); padding-left: 12px;
  color: var(--fg-dim, #777); margin: .6em 0;
}
.msg-content table { border-collapse: collapse; margin: .8em 0; font-size: 14px; }
.msg-content th, .msg-content td { border: 1px solid var(--border, #ddd); padding: 6px 12px; }
.msg-content code { background: var(--code-inline-bg, rgba(0,0,0,.06)); padding: 2px 5px; border-radius: 5px; font-size: 13px; }
.msg-content pre {
  position: relative; background: var(--code-bg, #f8f8f8);
  border: 1px solid var(--border, #e5e5e5); border-radius: 10px;
  margin: .8em 0; overflow: hidden;
}
.msg-content pre code { display: block; padding: 12px 14px; overflow-x: auto; background: none; font-size: 13px; }
.gemini-gem-modal { width: min(620px, 94vw); max-height: min(760px, 92vh); overflow-y: auto; }
.gemini-gem-editor { padding: 4px 0 18px; border-bottom: 1px solid var(--border, #e5e7eb); }
.gemini-gem-list { display: grid; gap: 10px; padding-top: 16px; }
.gemini-gem-list .settings-list-card { align-items: flex-start; }
.gemini-gem-list .settings-list-card.active { border-color: var(--accent, #d97757); }
.gemini-gem-list .settings-action-stack { justify-content: flex-end; margin: 0; }
.code-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 12px; font-size: 11.5px; color: var(--fg-dim, #888);
  border-bottom: 1px solid var(--border, #e8e8e8);
  background: var(--code-bar-bg, rgba(0,0,0,.025));
}
.code-copy { border: none; background: none; color: inherit; font-size: 11.5px; }
.code-copy:hover { color: var(--accent, #d97757); }

.msg-images { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.msg-images img { max-width: 220px; max-height: 220px; border-radius: 12px; border: 1px solid var(--border, #e2e2e2); }
.msg-media { display: flex; flex-direction: column; gap: 10px; margin: 4px 0 10px; max-width: 640px; }
.msg-media-item { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.msg-media audio { width: min(100%, 420px); }
.msg-media video { width: min(100%, 620px); max-height: 420px; border-radius: 12px; background: #111; }
.msg-media a { color: var(--accent, #b4553d); font-size: 12px; text-decoration: none; }

/* 用户消息:默认气泡右侧样式由主题覆盖 */
.msg-user .msg-content {
  background: var(--user-bubble, #f4f4f4); color: var(--user-bubble-fg, inherit);
  padding: var(--user-bubble-pad, 10px 16px); border-radius: var(--user-bubble-radius, 18px);
  display: inline-block; white-space: pre-wrap;
}

.typing-dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent, #d97757); animation: pulse 1s infinite alternate;
}
.cursor {
  display: inline-block; width: 7px; height: 15px; margin-left: 2px;
  background: var(--accent, #d97757); vertical-align: -2px;
  animation: pulse .8s infinite alternate;
}
@keyframes pulse { from { opacity: .25; } to { opacity: 1; } }

/* ---------- 输入区 ---------- */
.composer-wrap { padding: 8px 20px calc(10px + env(safe-area-inset-bottom)); }
.composer {
  max-width: var(--chat-w, 760px); margin: 0 auto;
  background: var(--composer-bg, #fff);
  border: var(--composer-border, 1px solid #ddd);
  border-radius: var(--composer-radius, 24px);
  box-shadow: var(--composer-shadow, none);
  padding: 8px 10px;
}
.composer:focus-within { border-color: var(--composer-focus, var(--accent, #d97757)); }
/* 对话框聚焦时仅保留 composer 自身边框,屏蔽全局 focus-visible 的 outline+box-shadow 双线 */
.composer textarea:focus-visible,
.composer input:focus-visible {
  outline: none !important;
  box-shadow: none !important;
}
.composer-row { display: flex; align-items: flex-end; gap: 6px; }
.composer textarea {
  flex: 1; border: none; outline: none; resize: none; background: none;
  color: inherit; font-size: 15px; line-height: 1.5; padding: 8px 4px; max-height: 200px;
}
.composer textarea::placeholder { color: var(--fg-dim, #9a9a9a); }
.send-btn {
  width: 34px; height: 34px; border-radius: var(--send-radius, 50%);
  border: none; display: flex; align-items: center; justify-content: center;
  background: var(--send-bg, var(--accent, #d97757)); color: var(--send-fg, #fff);
  flex-shrink: 0;
}
.send-btn:hover { opacity: .85; }
.attach-btn { align-self: flex-end; margin-bottom: 1px; }
.composer-hint {
  max-width: var(--chat-w, 760px); margin: 6px auto 0;
  text-align: center; font-size: 11.5px; color: var(--fg-dim, #9a9a9a);
}
.attach-previews { display: flex; gap: 8px; flex-wrap: wrap; padding: 6px 6px 2px; }
.attach-chip { position: relative; }
.attach-chip img { width: 58px; height: 58px; object-fit: cover; border-radius: 10px; border: 1px solid var(--border, #ddd); }
.attach-chip button {
  position: absolute; top: -6px; right: -6px; width: 18px; height: 18px;
  border-radius: 50%; border: none; background: #333; color: #fff; font-size: 9px;
}

/* ---------- 设置弹窗 ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.modal-layer {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
}
.modal {
  width: min(680px, 94vw); max-height: 86vh; overflow-y: auto;
  background: var(--bg-panel, #fff); color: var(--fg, #222);
  border-radius: 16px; padding: 20px 24px;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-header h2 { font-size: 18px; }
.modal-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border, #e5e5e5); margin-bottom: 16px; }
.modal-tabs .tab {
  padding: 8px 14px; border: none; background: none; font-size: 14px;
  color: var(--fg-dim, #888); border-bottom: 2px solid transparent;
}
.modal-tabs .tab.active { color: var(--accent, #d97757); border-bottom-color: var(--accent, #d97757); font-weight: 600; }
.tab-page label { display: block; font-size: 13px; color: var(--fg-dim, #777); margin-bottom: 12px; }
.tab-page label input {
  display: block; width: 100%; margin-top: 4px; padding: 9px 12px;
  border: 1px solid var(--border, #ddd); border-radius: 9px; background: transparent; color: inherit; outline: none;
}
.tab-page label input:focus { border-color: var(--accent, #d97757); }
.tab-page fieldset { border: 1px solid var(--border, #e5e5e5); border-radius: 12px; padding: 12px 14px 4px; margin-bottom: 14px; }
.tab-page legend { font-size: 13px; font-weight: 600; padding: 0 6px; }
.tip { font-size: 12.5px; color: var(--fg-dim, #999); margin-bottom: 14px; line-height: 1.6; }
.model-row {
  display: grid; grid-template-columns: 1.2fr .9fr .8fr .8fr 1.2fr 28px;
  gap: 6px; margin-bottom: 8px; align-items: center;
}
.model-row input, .model-row select {
  padding: 7px 8px; border: 1px solid var(--border, #ddd); border-radius: 8px;
  background: transparent; color: inherit; font-size: 12.5px; min-width: 0;
}
.me-del { border: none; background: none; color: #c66; }
.add-model-btn {
  margin-top: 6px; padding: 8px 14px; border-radius: 9px;
  border: 1px dashed var(--border, #ccc); background: none; color: var(--fg-dim, #777); font-size: 13px;
}
.modal-footer { display: flex; justify-content: flex-end; align-items: center; gap: 12px; margin-top: 16px; }
#settings-status { font-size: 13px; color: var(--accent, #2a9d3f); }
.primary-btn {
  padding: 9px 22px; border: none; border-radius: 10px;
  background: var(--accent, #d97757); color: #fff; font-size: 14px;
}
.btn-secondary {
  padding: 9px 22px; border: 1px solid var(--border, #e5e5e5); border-radius: 10px;
  background: transparent; color: var(--fg, #222); font-size: 14px;
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--scrollbar, rgba(0,0,0,.18)); border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }

@media (max-width: 720px) {
  .sidebar {
    position: fixed;
    z-index: 50;
    height: 100vh;
    height: 100dvh;
  }
  body:not(.sidebar-collapsed) .sidebar { box-shadow: 0 0 40px rgba(0,0,0,.3); }
  /* 移动端侧栏遮罩:侧栏打开时半透明遮罩覆盖主区域,点击可关闭侧栏 */
  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0; z-index: 49;
    background: rgba(0,0,0,.4);
    opacity: 0; transition: opacity .25s ease;
  }
  body:not(.sidebar-collapsed) .sidebar-overlay { display: block; opacity: 1; }
  .model-row { grid-template-columns: 1fr 1fr; }
}

/* ---------- 会员系统 UI ---------- */
.auth-tabs { display: flex; gap: 6px; margin-bottom: 16px; justify-content: center; }
.login-card button.auth-tab {
  width: auto; padding: 6px 22px; border: none; background: none; font-size: 14px;
  color: var(--fg-dim, #888); border-bottom: 2px solid transparent; border-radius: 0;
}
.login-card button.auth-tab.active { color: var(--accent, #d97757); border-bottom-color: var(--accent, #d97757); font-weight: 600; }

.user-chip { display: flex; align-items: center; gap: 10px; padding: 6px 4px 10px; }
.user-chip-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent, #d97757); color: #fff; font-weight: 700; font-size: 15px;
}
.user-chip-name { font-size: 13.5px; font-weight: 600; }
.user-chip-balance { font-size: 11.5px; color: var(--fg-dim, #999); }
.user-chip-balance b { color: var(--accent, #d97757); }
.user-actions { display: flex; flex-wrap: wrap; gap: 4px; }
.user-actions button {
  flex: 1; min-width: 46px; padding: 6px 4px; font-size: 11.5px;
  border: none; background: none; color: var(--fg, #555); border-radius: 7px; white-space: nowrap;
}
.user-actions button:hover { background: var(--item-hover, rgba(0,0,0,.06)); }

.announcement { font-size: 12px; color: var(--fg-dim, #999); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.modal-sm { width: min(430px, 94vw); }
.big-input {
  width: 100%; padding: 12px 14px; font-size: 15px; letter-spacing: 1px;
  border: 1px solid var(--border, #ddd); border-radius: 10px; background: transparent; color: inherit; outline: none;
}
.big-input:focus { border-color: var(--accent, #d97757); }
.ok { color: #2a9d3f; }
.err { color: #d33; }

.record-list { max-height: 300px; overflow-y: auto; font-size: 13px; }
.record-row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 12px;
  padding: 8px 4px; border-bottom: 1px solid var(--border, #eee);
}
.agent-user-row { grid-template-columns: 1fr auto auto auto; align-items: center; }
.agent-user-row small { display: block; margin-top: 3px; color: var(--fg-dim, #999); font-size: 11px; }
.record-actions { display: flex; gap: 6px; }
.record-action { border: 0; background: transparent; color: var(--accent, #d97757); font-size: 12px; cursor: pointer; white-space: nowrap; }
.record-action:hover { text-decoration: underline; }
.field-label { display: block; margin: 12px 0 6px; font-size: 12px; color: var(--fg-dim, #777); }
.check-row { display: flex; align-items: center; gap: 7px; margin-top: 14px; font-size: 13px; }
.record-row span:last-child { color: var(--fg-dim, #999); font-size: 12px; }
.record-empty { padding: 24px; text-align: center; color: var(--fg-dim, #999); font-size: 13px; }

.agent-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.stat-card {
  padding: 14px 10px; text-align: center; border-radius: 12px;
  border: 1px solid var(--border, #e5e5e5); background: var(--bg-main, #fafafa);
}
.stat-num { font-size: 19px; font-weight: 700; color: var(--accent, #d97757); }
.stat-label { font-size: 11.5px; color: var(--fg-dim, #999); margin-top: 4px; }
/* 代码高亮配色(自研) */
.hl-kw { color: #c678dd; }
.hl-str { color: #98c379; }
.hl-num { color: #d19a66; }
.hl-cmt { color: #7f848e; font-style: italic; }
@media (max-width: 720px) { .agent-cards { grid-template-columns: repeat(2, 1fr); } }

/* ---------- SVG 图标尺寸(去 emoji 统一线条风) ---------- */
.brand-icon { display: inline-flex; align-items: center; }
.brand-icon svg { width: 19px; height: 19px; }
.brand-icon .claude-logo-img { width: 24px; height: 24px; display: block; }
.welcome-icon svg { width: 38px; height: 38px; }
.welcome-icon .claude-logo-img { width: 40px; height: 40px; display: block; }
.mi-icon svg { width: 15px; height: 15px; }
.msg-avatar svg { width: 15px; height: 15px; }
.login-logo { display: flex; justify-content: center; }

/* ============ v2.2 深度还原:新输入框结构 / 用户弹出菜单 / 消息操作行 ============ */

/* 输入框:文本域在上,按钮行在下(四家官方当前通用结构) */
.composer { display: flex; flex-direction: column; padding: 10px 12px 8px; }
.composer textarea { width: 100%; padding: 4px 6px 8px; }
.composer-bottom { display: flex; align-items: center; gap: 6px; }
.composer-spacer { flex: 1; }
.attach-btn { align-self: auto; margin-bottom: 0; }

.composer-picker { position: relative; }
.composer-model-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 6px 10px; font-size: 12.5px; font-weight: 500;
  border: none; border-radius: 8px; background: none;
  color: var(--fg-dim, #888);
}
.composer-model-btn:hover { background: var(--item-hover, rgba(0,0,0,.06)); color: var(--fg, #333); }
.model-menu.menu-up { top: auto; bottom: calc(100% + 8px); left: auto; right: 0; }

/* 顶栏 wordmark 与会话标题 */
.topbar-wordmark { display: flex; align-items: center; gap: 8px; font-size: 19px; font-weight: 600; color: var(--fg, #333); }
.topbar-wordmark .wm-logo { display: inline-flex; align-items: center; }
.topbar-wordmark .wm-logo svg { width: 22px; height: 22px; display: block; }
.session-title-bar {
  display: none; font-size: 13.5px; color: var(--fg, #444);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 40%;
}

/* 通用深浅色切换按钮(所有支持皮肤共用) */
.theme-toggle-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px; border: none;
  background: none; color: var(--fg-dim, #666); flex-shrink: 0;
}
.theme-toggle-btn:hover { background: var(--item-hover, rgba(0,0,0,.06)); color: var(--fg, #333); }

/* 官方 Gemini/ChatGPT/Grok 顶栏的临时、朗读按钮 */
.private-top-btn,
.gemini-tts-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 32px; padding: 6px 10px; border: 0; border-radius: 9px;
  background: transparent; color: var(--fg-dim, #777); font-size: 12.5px;
}
.private-top-btn:hover,
.gemini-tts-btn:hover,
.private-top-btn.active,
.gemini-tts-btn.active { background: var(--item-hover, rgba(0,0,0,.07)); color: var(--fg, #333); }
.gemini-tts-btn { width: 34px; padding: 6px; }
.gemini-tts-btn > span { font-size: 12px; line-height: 1; }

.incognito-banner {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  flex: 0 0 auto; min-height: 34px; padding: 7px 14px;
  border-bottom: 1px solid var(--border, #e5e5e5);
  background: var(--bg-panel, rgba(0,0,0,.025)); color: var(--fg-dim, #777); font-size: 12px;
}
.incognito-banner svg { width: 15px; height: 15px; }

.gemini-recent-toggle {
  display: inline-flex; align-items: center; justify-content: space-between; gap: 8px;
  width: 100%; padding: 3px 4px; border: 0; background: transparent;
  color: inherit; font: inherit; text-align: left; cursor: pointer;
}
.gemini-recent-toggle:hover { color: var(--fg, #333); }
.gemini-recent-collapsed { display: none !important; }

/* 用户区:头像条 + 向上弹出菜单(官方通用模式) */
.user-menu-wrap { position: relative; }
.user-chip {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 8px; border: none; background: none; border-radius: 10px;
  text-align: left; color: inherit;
}
.user-chip:hover { background: var(--item-hover, rgba(0,0,0,.06)); }
.user-chip-info { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.user-chip-caret { color: var(--fg-dim, #999); }
.user-menu {
  position: absolute; bottom: calc(100% + 8px); left: 0; right: 0; z-index: 40;
  background: var(--bg-menu, #fff); border: 1px solid var(--border, #e5e5e5);
  border-radius: 14px; padding: 6px;
  box-shadow: 0 10px 36px rgba(0,0,0,.16);
}
.user-menu-head { padding: 8px 10px 6px; }
.user-menu-name { font-size: 13.5px; font-weight: 600; }
.user-menu-balance { font-size: 12px; color: var(--fg-dim, #999); margin-top: 2px; }
.user-menu-balance b { color: var(--accent, #d97757); }
.user-menu-sep { height: 1px; background: var(--border, #eee); margin: 4px 6px; }
.user-menu-item {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 8px 10px; border: none; background: none; text-align: left;
  border-radius: 8px; font-size: 13px; color: var(--fg, #333);
}
.user-menu-item:hover { background: var(--item-hover, rgba(0,0,0,.06)); }
.user-menu-item svg { color: var(--fg-dim, #999); flex-shrink: 0; }

/* 助手消息操作行 */
.msg-actions { display: flex; gap: 2px; margin-top: 6px; opacity: 0; transition: opacity .15s; }
.msg:hover .msg-actions, .msg:last-child .msg-actions { opacity: 1; }
.msg-action-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border: none; background: none;
  border-radius: 7px; color: var(--fg-dim, #999);
}
.msg-action-btn:hover { background: var(--item-hover, rgba(0,0,0,.07)); color: var(--fg, #333); }
.msg-action-btn.done { color: #2a9d3f; }

/* 空对话居中布局:顶栏保持在最上,伪元素只在其下方撑开空间 */
body.empty-chat:is(.theme-claude, .theme-chatgpt, .theme-grok, .theme-gemini) .topbar { order: -1; }

/* 空对话时隐藏空消息容器,避免其内边距参与布局 */
body.empty-chat .messages { display: none; }

/* 明细中的 token 数标注 */
.tok { font-size: 11px; color: var(--fg-dim, #999); }

/* ---------- 输入框功能钮 / 侧栏搜索 / 轻提示 ---------- */
.composer-tools { display: flex; gap: 6px; }
.tool-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 11px; border-radius: 999px; font-size: 12px;
  border: 1px solid var(--border, #ddd); background: none;
  color: var(--fg-dim, #888);
}
.tool-pill.icon-only { padding: 6px 8px; border: none; }
.tool-pill:hover { background: var(--item-hover, rgba(0,0,0,.05)); color: var(--fg, #333); }

.sidebar-search {
  margin: 2px 12px 4px; display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 9px;
  background: var(--search-bg, rgba(0,0,0,.045));
  color: var(--fg-dim, #999);
}
.sidebar-search input {
  flex: 1; border: none; outline: none; background: none;
  color: var(--fg, #333); font-size: 13px; min-width: 0;
}
.sidebar-search input::placeholder { color: var(--fg-dim, #9a9a9a); }

.toast {
  position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%);
  z-index: 200; padding: 9px 18px; border-radius: 999px;
  background: rgba(20, 20, 20, .88); color: #fff; font-size: 13px;
  pointer-events: none;
}
.toast.success { background: rgba(27, 118, 71, .94); }
.toast.error { background: rgba(176, 45, 45, .96); }


/* ============ v3 深色对齐:通用单行输入框网格 ============ */
.composer-grid { display: flex; align-items: center; gap: 6px; }
.composer-grid textarea { flex: 1; min-width: 0; }
.mic-area { display: flex; align-items: center; gap: 2px; }
.mic-btn { color: var(--fg-dim, #999); }
.voice-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 13px; border-radius: 999px; border: none;
  background: var(--voice-bg, #fff); color: var(--voice-fg, #000);
  font-size: 13px; font-weight: 500;
}
.seg {
  display: inline-flex; padding: 3px; border-radius: 999px;
  background: var(--seg-bg, rgba(0,0,0,.25)); gap: 2px;
}
.seg-item {
  padding: 4px 12px; border: none; border-radius: 999px;
  background: none; color: var(--fg-dim, #999); font-size: 12.5px;
}
.seg-item.active { background: var(--seg-active-bg, #444); color: var(--seg-active-fg, #fff); }
.picker-dot { display: none; width: 7px; height: 7px; border-radius: 50%; background: #7cacf8; }

.sidebar-nav { display: flex; flex-direction: column; padding: 2px 8px 4px; }
.snav-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 8px 10px; border: none; background: none; text-align: left;
  border-radius: var(--radius-item, 9px); font-size: 13.5px; color: var(--fg, #ddd);
}
.snav-item svg { color: var(--fg-dim, #999); flex-shrink: 0; }
.snav-item:hover { background: var(--item-hover, rgba(255,255,255,.06)); }

/* ---------- 空状态建议入口(输入框下方) ---------- */
.welcome-suggest {
  max-width: var(--chat-w, 760px); margin: 14px auto 0;
  display: none; flex-direction: column; gap: 2px; padding: 0 8px;
}
body.empty-chat .welcome-suggest { display: flex; }
.suggest-item {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 10px; border: none; background: none; text-align: left;
  border-radius: 10px; font-size: 14.5px; color: var(--fg-dim, #999);
}
.suggest-item:hover { background: var(--item-hover, rgba(255,255,255,.06)); color: var(--fg, #eee); }
.suggest-item svg { flex-shrink: 0; opacity: .8; }

/* ---------- v2.4:通用主题(hub)的菜单图标与代码高亮 ---------- */
.mi-icon.skin-hub { background: #f6e3db; color: #c96442; }
body.theme-hub .hl-kw { color: #a626a4; }
body.theme-hub .hl-str { color: #50a14f; }
body.theme-hub .hl-cmt { color: #a0a1a7; }

/* ---------- v2.5:专属主题的菜单图标配色 ---------- */
.mi-icon.skin-deepseek { background: #e0eaff; color: #4d6bfe; }
.mi-icon.skin-kimi { background: #16161a; color: #ffffff; }
.mi-icon.skin-glm { background: #e7edff; color: #3859ff; }
.mi-icon.skin-mimo { background: #f5f5f7; color: #1a1a1a; }

/* 浅色主题代码高亮统一用亮色系配色 */
body.theme-deepseek .hl-kw, body.theme-kimi .hl-kw,
body.theme-glm .hl-kw, body.theme-mimo .hl-kw { color: #d73a49; }
body.theme-deepseek .hl-str, body.theme-kimi .hl-str,
body.theme-glm .hl-str, body.theme-mimo .hl-str { color: #032f62; }
body.theme-deepseek .hl-cmt, body.theme-kimi .hl-cmt,
body.theme-glm .hl-cmt, body.theme-mimo .hl-cmt { color: #6a737d; }

.tip-mt{margin-top:14px}

/* ---------- 全站可用性基础：不覆盖厂商视觉主题 ---------- */
:where(a, button, input, textarea, select, summary):focus-visible {
  outline: 2px solid #fff !important;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px #0b3d91 !important;
}
/* 输入框聚焦时不使用全局双线焦点环,由各组件 :focus 提供 border 聚焦样式 */
:where(input, textarea, select):focus-visible {
  outline: none !important;
  box-shadow: none !important;
}

@media (hover: none), (pointer: coarse) {
  body .session-del {
    visibility: visible !important;
    opacity: 1 !important;
    min-width: 44px;
    min-height: 44px;
  }
  body .msg-actions { opacity: 1 !important; }
  .icon-btn,
  .send-btn,
  .theme-toggle-btn,
  .msg-action-btn {
    min-width: 44px;
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- 记录区域状态与局部重试 ---------- */
.record-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 10px 12px;
  color: var(--fg-dim, #777);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}
.record-state.error { color: var(--danger, #b42318); }
.record-state:focus-visible {
  outline: 3px solid var(--accent, #d97757);
  outline-offset: -3px;
}
.record-focus-target:focus-visible {
  outline: 3px solid var(--accent, #d97757);
  outline-offset: -3px;
}
.retry-btn {
  flex: 0 0 auto;
  border: 1px solid currentColor;
  border-radius: 8px;
  padding: 5px 10px;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.retry-btn:disabled { cursor: wait; opacity: .65; }
.retry-btn:focus-visible {
  outline: 3px solid var(--accent, #d97757);
  outline-offset: 2px;
}
@media (hover: none), (pointer: coarse) {
  .retry-btn { min-width: 44px; min-height: 44px; }
}

:where(.record-state, .record-focus-target):focus-visible {
  outline: 2px solid #fff !important;
  outline-offset: 2px;
  box-shadow: 0 0 0 6px #0b3d91 !important;
}

@media (forced-colors: active) {
  body, .app, .sidebar, .topbar, .main, .composer, .modal, .model-menu,
  .user-menu, .login-card, .stat-card, .record-state {
    background: Canvas;
    color: CanvasText;
    border-color: CanvasText;
  }
  :where(input, textarea, select, button, .icon-btn, .send-btn, .retry-btn, .user-menu-item) {
    background: ButtonFace;
    color: ButtonText;
    border-color: ButtonText;
  }
  .btn-secondary { background: ButtonFace; color: ButtonText; border-color: ButtonText; }
  :where(.session-item.active, .modal-tabs .tab.active, .login-card .auth-tab.active,
  .seg-item.active, [aria-current="page"], [aria-selected="true"]) {
    background: Highlight;
    color: HighlightText;
    border-color: HighlightText;
  }
  :where(.record-row span:last-child, .record-empty, .user-menu-balance) { color: CanvasText; }
  :where(.sidebar-search input::placeholder, input::placeholder, textarea::placeholder) { color: GrayText; }
  :where(a, button, input, textarea, select, summary, .record-state, .record-focus-target):focus-visible {
    outline: 2px solid Highlight !important;
    outline-offset: 2px;
    box-shadow: none !important;
  }
  /* 输入框在 forced-colors 下清除 outline,用 border-color 指示焦点,避免双线 */
  :where(input, textarea, select):focus-visible {
    outline: none !important;
    box-shadow: none !important;
    border-color: Highlight !important;
  }
  .modal-layer { background: Canvas; }
  .toast { background: Canvas; color: CanvasText; border: 2px solid CanvasText; }
  .toast.success { border-color: Highlight; }
  .toast.error, .record-state.error { color: CanvasText; border: 2px solid CanvasText; }
  .login-error, .err {
    color: CanvasText;
    border-inline-start: 3px solid CanvasText;
    padding-inline-start: 8px;
  }
  .retry-btn:disabled { color: GrayText; border-color: GrayText; }
}

@media (prefers-contrast: more) {
  body { --fg-dim: color-mix(in srgb, var(--fg, currentColor) 82%, transparent); }
  :where(.record-empty, .record-row span:last-child, .user-menu-balance, .snav-item svg) { color: var(--fg, currentColor); }
  :where(.sidebar, .topbar, .composer, .modal, .model-menu, .user-menu, input, textarea, select) { border-color: currentColor; }
  :where(.session-item.active, .modal-tabs .tab.active, .login-card .auth-tab.active,
  .seg-item.active, [aria-current="page"], [aria-selected="true"]) { border: 2px solid currentColor; font-weight: 700; }
  :where(a, button, input, textarea, select, summary, .record-state, .record-focus-target):focus-visible {
    outline: 2px solid #fff !important;
    outline-offset: 2px;
    box-shadow: 0 0 0 6px #0b3d91 !important;
  }
  /* 输入框在高对比度下清除 outline,用 border-color 指示焦点,避免双线 */
  :where(input, textarea, select):focus-visible {
    outline: none !important;
    box-shadow: none !important;
    border-color: Highlight !important;
  }
}