:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2329;
  --muted: #8a919f;
  --accent: #4f6ef2;
  --accent-weak: #eef1ff;
  --user-bg: #4f6ef2;
  --user-text: #ffffff;
  --border: #e4e7ec;
  --danger: #d94c4c;
}

* { box-sizing: border-box; }

/* 强制 hidden 属性真正隐藏元素（不被 .app/.login-screen 等 display:flex 覆盖） */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1100px 460px at 50% -6%, var(--glow, transparent), transparent 70%), var(--bg);
  color: var(--text);
  height: 100vh;
  transition: background .35s ease, color .35s ease;
}

/* 主题随所选模型切换 */
body[data-theme="deepseek"] {
  --bg: #eef2ff; --card: #ffffff; --text: #1f2329; --muted: #6c7484;
  --accent: #4d6bfe; --accent-weak: #e4e9ff; --user-bg: #4d6bfe; --user-text: #ffffff;
  --border: #d9e0ff; --danger: #d94c4c; --glow: rgba(77, 107, 254, .16);
}
body[data-theme="gemini"] {
  --bg: #eafaf3; --card: #ffffff; --text: #1b2420; --muted: #5f6f68;
  --accent: #0da170; --accent-weak: #d9f3ea; --user-bg: #0da170; --user-text: #ffffff;
  --border: #c4e8d8; --danger: #d94c4c; --glow: rgba(13, 161, 112, .14);
}
body[data-theme="grok"] {
  --bg: #14141b; --card: #1f1f29; --text: #f2f2f5; --muted: #9ba0ad;
  --accent: #f97316; --accent-weak: #3a2c1e; --user-bg: #f97316; --user-text: #ffffff;
  --border: #33333f; --danger: #ef4444; --glow: rgba(249, 115, 22, .20);
}
body[data-theme="kimi"] {
  --bg: #f4f1fb; --card: #ffffff; --text: #221d30; --muted: #6f6684;
  --accent: #7c5cff; --accent-weak: #e9e2ff; --user-bg: #7c5cff; --user-text: #ffffff;
  --border: #dcd3f5; --danger: #d94c4c; --glow: rgba(124, 92, 255, .16);
}
body[data-theme="qwen"] {
  --bg: #ecf6f4; --card: #ffffff; --text: #16302c; --muted: #5c746f;
  --accent: #0ea5a4; --accent-weak: #d6f1ef; --user-bg: #0ea5a4; --user-text: #ffffff;
  --border: #bfe2df; --danger: #d94c4c; --glow: rgba(14, 165, 164, .14);
}

.app {
  max-width: 820px;
  margin: 0 auto;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  transition: background .35s ease, border-color .35s ease;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-text h1 { font-size: 17px; margin: 0; font-weight: 600; }
.model-name { font-size: 12px; color: var(--accent); font-weight: 500; }

.mascot {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  box-shadow: 0 2px 10px var(--glow);
  background: #fff;
  transition: border-color .35s ease, box-shadow .35s ease, transform .2s ease;
}
.mascot:hover { transform: scale(1.06); }
.mascot[data-theme-bg] { background: var(--card); }

.controls { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); flex-wrap: wrap; justify-content: flex-end; }
.controls select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font-size: 13px;
}
.controls label { white-space: nowrap; }

.logout {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
}
.logout:hover { color: var(--danger); border-color: var(--danger); }

/* 登录页 */
.login-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(1000px 460px at 50% 0%, rgba(77, 107, 254, .18), transparent 70%), var(--bg);
  transition: background .35s ease;
}
.login-card {
  width: 300px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px 26px;
  text-align: center;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .12);
}
.login-logo { width: 64px; height: 64px; margin: 0 auto 10px; display: block; }
.login-card h1 { font-size: 18px; margin: 4px 0 2px; }
.login-sub { font-size: 12px; color: var(--muted); margin: 0 0 18px; }
.login-card input {
  width: 100%;
  margin-bottom: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
}
.login-card input:focus { outline: none; border-color: var(--accent); }
.login-card button {
  width: 100%;
  padding: 10px 0;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}
.login-card button:hover { opacity: .92; }
.login-err { color: var(--danger); font-size: 12px; margin: 10px 0 0; min-height: 16px; }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.msg {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 14px;
}

.msg.user { align-self: flex-end; background: var(--user-bg); color: var(--user-text); border-bottom-right-radius: 4px; }
.msg.ai   { align-self: flex-start; background: var(--card); border: 1px solid var(--border); border-bottom-left-radius: 4px; }

.msg.meta { align-self: flex-start; color: var(--muted); font-size: 12px; background: transparent; border: none; }

.msg.error { border-color: var(--danger); color: var(--danger); }
.msg.warn { background: #fff7e6; border-color: #ffd591; }

.welcome {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 30px 0;
  line-height: 1.8;
}

.composer {
  display: flex;
  gap: 10px;
  padding: 12px 18px;
  background: var(--card);
  border-top: 1px solid var(--border);
}

.composer textarea {
  flex: 1;
  resize: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  max-height: 140px;
  outline: none;
}
.composer textarea:focus { border-color: var(--accent); }

.composer button {
  align-self: flex-end;
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
}
.composer button:disabled { opacity: 0.6; cursor: not-allowed; }

.toast {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: #32363b;
  color: #fff;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0,0,0,.2);
}

/* ---------- 视图切换（对话 / 智能体） ---------- */
.view-switch {
  display: flex;
  gap: 6px;
  padding: 8px 18px 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  transition: background .35s ease, border-color .35s ease;
}
.view-tab {
  border: 1px solid var(--border);
  border-bottom: none;
  background: transparent;
  padding: 8px 18px;
  font: inherit;
  font-size: 14px;
  color: var(--muted);
  border-radius: 10px 10px 0 0;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.view-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

/* ---------- 智能体面板 ---------- */
#chat-view { display: flex; flex-direction: column; flex: 1; min-height: 0; }
#agent-view { flex: 1; min-height: 0; overflow-y: auto; display: flex; }
#agent-view[hidden] { display: none; }
.agent-panel {
  width: 100%;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.agent-config { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.agent-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.agent-row label { font-size: 13px; color: var(--muted); }
.agent-row select {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
  outline: none;
}
.agent-task, .agent-cwd {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
  resize: vertical;
  outline: none;
}
.agent-task:focus, .agent-cwd:focus { border-color: var(--accent); }
.agent-cwd { flex: 1; }
.agent-cwd[readonly] { opacity: .75; cursor: default; }
.codex-access-row { align-items: center; }
.codex-access-row[hidden] { display: none; }
#codex-access {
  flex: 1 1 240px;
  min-width: 180px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
  outline: none;
}
#codex-access:focus { border-color: var(--accent); }
.codex-access-hint { flex-basis: 100%; font-size: 12px; color: var(--muted); }
#agent-run {
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 9px 22px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
#agent-run:disabled { opacity: 0.6; cursor: not-allowed; }
.agent-status {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
}
.agent-status.running { background: var(--accent-weak); color: var(--accent); }
.agent-status.done { background: var(--accent-weak); color: var(--accent); }
.agent-status.error { background: var(--accent-weak); color: var(--danger); }
.agent-output {
  flex: 1;
  min-height: 180px;
  overflow: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

/* ---------- 智能体：会话线程 / 新建会话 ---------- */
.agent-new {
  margin-left: auto;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
}
.agent-new:hover { color: var(--accent); border-color: var(--accent); }

.agent-thread {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 40vh;
  overflow: auto;
}
.agent-turn {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  overflow: hidden;
}
.agent-turn-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  background: var(--accent-weak);
  border-bottom: 1px solid var(--border);
}
.agent-turn-order {
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.agent-turn-prompt {
  font-size: 13px;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}
.agent-turn-body {
  margin: 0;
  padding: 8px 12px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 30vh;
  overflow: auto;
}

/* ---------- 智能体：产物文件面板 ---------- */
.agent-files {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  overflow: hidden;
}
.agent-files-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--accent-weak);
  border-bottom: 1px solid var(--border);
}
.agent-files-title { font-size: 13px; font-weight: 600; color: var(--accent); }
.agent-files-path {
  flex: 1;
  font-size: 12px;
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, monospace;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.agent-files-refresh {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
}
.agent-files-refresh:hover { color: var(--accent); border-color: var(--accent); }

.agent-files-body {
  display: flex;
  flex-direction: column;
  max-height: 34vh;
  overflow: auto;
}
.agent-file-hint { padding: 12px; font-size: 12.5px; color: var(--muted); text-align: center; }
.agent-file-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 7px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
}
.agent-file-row:last-child { border-bottom: none; }
.agent-file-row:hover { background: var(--accent-weak); }
.agent-file-icon { flex: 0 0 auto; }
.agent-file-name {
  flex: 1;
  font-family: "SFMono-Regular", Consolas, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.agent-file-meta { flex: 0 0 auto; color: var(--muted); font-size: 11.5px; }
.agent-file-dir { color: var(--accent); font-weight: 500; }

/* ---------- 文件预览弹窗 ---------- */
.file-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 24px;
}
.file-modal-card {
  width: min(720px, 100%);
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .25);
  overflow: hidden;
}
.file-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  background: var(--accent-weak);
  border-bottom: 1px solid var(--border);
}
.file-modal-title {
  font-size: 14px;
  font-weight: 600;
  font-family: "SFMono-Regular", Consolas, monospace;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-modal-actions { display: flex; align-items: center; gap: 8px; }
.file-download {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 12px;
  text-decoration: none;
}
.file-download:hover { background: var(--accent); color: #fff; }
.file-modal-close {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.file-modal-close:hover { color: var(--danger); }
.file-modal-body {
  margin: 0;
  padding: 12px 14px;
  overflow: auto;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 120px;
}

/* ================= 多 AI 对照 ================= */
.multi-shell {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.multi-selector {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 18px 10px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.multi-selector-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.multi-title { font-size: 13px; font-weight: 600; color: var(--text); }
.multi-count { font-size: 12px; color: var(--muted); flex: 1; }
.multi-view-toggle { display: flex; align-items: center; gap: 4px; }
.mvt {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
}
.mvt:hover { color: var(--accent); border-color: var(--accent); }
.mvt.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.mvt-reset {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 4px 12px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  margin-left: 6px;
}
.mvt-reset:hover { color: var(--danger); border-color: var(--danger); }

.multi-picker { display: flex; flex-wrap: wrap; gap: 8px; }
.ai-chip {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 12.5px;
  cursor: pointer;
  transition: all .15s ease;
}
.ai-chip:hover { border-color: var(--accent); }
.ai-chip.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.ai-chip[disabled] { opacity: .45; cursor: not-allowed; text-decoration: line-through; }
.ai-chip[disabled]:hover { border-color: var(--border); }

.multi-compare {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.multi-empty {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 40px 0;
  line-height: 1.8;
}

.multi-round { display: flex; flex-direction: column; gap: 10px; }
.multi-round-q {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border);
}
.multi-round-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 12px;
  align-items: start;
}
.multi-round-row.single { grid-template-columns: 1fr; }

.ai-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  overflow: hidden;
}
.ai-card-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--accent-weak);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.ai-card-name { font-size: 13px; font-weight: 600; color: var(--accent); white-space: nowrap; }
.ai-card-state {
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 10px;
  background: var(--border);
  color: var(--muted);
}
.ai-card-state.running { background: var(--accent); color: #fff; }
.ai-card-state.done { background: #e6f7ec; color: #0a7a43; }
.ai-card-state.failed { background: #fdeaec; color: var(--danger); }
.ai-card-meta { font-size: 11px; color: var(--muted); margin-left: auto; }
.ai-card-actions { display: flex; align-items: center; gap: 4px; }
.ai-mini {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 11px;
  cursor: pointer;
}
.ai-mini:hover { color: var(--accent); border-color: var(--accent); }
.ai-card-body {
  margin: 0;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  white-space: normal;
  word-break: break-word;
  max-height: 46vh;
  overflow-y: auto;
}
.ai-card-body.error { color: var(--danger); }
.ai-card-body.pending { color: var(--muted); font-style: italic; }

/* 综合视图 */
.multi-synthesis {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.syn-hint {
  font-size: 12.5px;
  color: var(--muted);
  background: var(--accent-weak);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  line-height: 1.6;
}
.syn-btn {
  align-self: flex-start;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
}
.syn-btn:disabled { opacity: .5; cursor: not-allowed; }
.syn-body { display: flex; flex-direction: column; gap: 10px; }

/* 综合结论工具栏与元信息 */
.syn-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.syn-provider-label { font-size: 13px; color: var(--muted); }
.syn-provider {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  max-width: 260px;
}
.syn-meta {
  font-size: 12px;
  color: var(--muted);
  background: var(--accent-weak);
  border-radius: 8px;
  padding: 6px 12px;
  line-height: 1.5;
  word-break: break-word;
}
.syn-err { color: var(--danger); border-color: var(--danger); }
.syn-result { display: flex; flex-direction: column; gap: 6px; }

/* 综合结论的安全 markdown 渲染 */
.syn-result .md-h { margin: 8px 0 4px; font-size: 14px; color: var(--accent); line-height: 1.4; }
.syn-result .md-h:first-child { margin-top: 0; }
.syn-result .md-p { margin: 0; font-size: 13.5px; color: var(--text); line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.syn-result .md-gap { height: 8px; }
.syn-result .md-li { margin: 2px 0; font-size: 13.5px; color: var(--text); line-height: 1.7; padding-left: 4px; word-break: break-word; }
.syn-result .md-hr { border: none; border-top: 1px solid var(--border); margin: 10px 0; }
.syn-result .md-code {
  margin: 4px 0;
  padding: 10px 12px;
  background: rgba(0, 0, 0, .05);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}
.syn-result code {
  background: rgba(0, 0, 0, .05);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: .92em;
}

.multi-composer { border-top: 1px solid var(--border); }

/* ---------- 个人笔记（Notes） ---------- */
#notes-view { flex: 1; min-height: 0; overflow: hidden; display: flex; }
#notes-view[hidden] { display: none; }
.notes-shell {
  display: grid;
  grid-template-columns: minmax(300px, 5fr) minmax(300px, 4fr);
  gap: 16px;
  flex: 1;
  min-height: 0;
  padding: 16px;
}
.notes-compose, .notes-list {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  min-height: 0;
}
.notes-compose-head, .notes-list-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--accent-weak);
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}
.notes-title { font-size: 14px; font-weight: 700; color: var(--text); }
.notes-hint { font-size: 12px; color: var(--muted); }
.notes-count { color: var(--accent); font-weight: 600; font-size: 12.5px; }
.notes-spacer { flex: 1; }

.note-title {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  background: var(--card);
  color: var(--text);
  outline: none;
}
.note-title:focus { border-color: var(--accent); }
.note-content {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13.5px;
  line-height: 1.6;
  font-family: inherit;
  resize: vertical;
  background: var(--card);
  color: var(--text);
  outline: none;
  margin-top: 10px;
}
.note-content:focus { border-color: var(--accent); }
.notes-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}
.note-file-label {
  display: inline-flex;
  align-items: center;
  border: 1px dashed var(--accent);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  cursor: pointer;
}
.note-file-label:hover { background: var(--accent-weak); }
.note-file-name { font-size: 12px; color: var(--muted); max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.note-save {
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 7px 22px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
}
.note-save:disabled { opacity: .55; cursor: not-allowed; }

.notes-list-head { justify-content: space-between; }
.notes-refresh {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 5px 14px;
  border-radius: 8px;
  font-size: 12.5px;
  cursor: pointer;
}
.notes-refresh:hover { border-color: var(--accent); color: var(--accent); }

.notes-items { flex: 1; overflow: auto; padding: 10px; }
.notes-empty {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 28px 12px;
}
.note-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
  background: var(--card);
}
.note-item:hover { border-color: var(--accent); }
.note-item-main { min-width: 0; }
.note-item-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.note-item-meta { font-size: 11.5px; color: var(--muted); margin-top: 3px; }
.note-item-actions { display: flex; gap: 6px; flex: 0 0 auto; }
.note-item-actions button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}
.note-item-actions .note-view:hover { border-color: var(--accent); color: var(--accent); }
.note-item-actions .note-del:hover { border-color: var(--danger); color: var(--danger); }
.note-item-actions button:disabled { opacity: .5; cursor: not-allowed; }

.notes-modal-card { width: min(680px, 100%); }
.notes-modal-title-box { min-width: 0; }
.notes-modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.notes-modal-meta { font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.notes-modal-body {
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  font-family: "SFMono-Regular", Consolas, "Microsoft YaHei", monospace;
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}

/* ---------- 图片附件（composer 缩略图条 / 消息内图片） ---------- */
.attach-row { display: flex; gap: 8px; flex: 1 0 100%; flex-wrap: wrap; padding: 8px 0 0; }
.attach-cell { position: relative; width: 62px; height: 62px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: var(--card); }
.attach-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }
.attach-del { position: absolute; top: 2px; right: 4px; cursor: pointer; color: var(--danger); font-size: 15px; line-height: 1; text-shadow: 0 0 3px #fff, 0 0 3px #fff; }
.attach-del:hover { transform: scale(1.2); }
.attach-btn { flex: 0 0 auto; width: 40px; padding: 0; font-size: 17px; background: transparent; border: 1px solid var(--border); border-radius: 10px; color: var(--text); cursor: pointer; }
.attach-btn:hover { background: var(--accent-weak); border-color: var(--accent); }
.composer { flex-wrap: wrap; }
.attach-row[hidden] { display: none !important; }

.msg-image { display: block; max-width: 180px; max-height: 180px; border-radius: 10px; border: 1px solid var(--border); margin: 4px 0; }

.multi-round-img { height: 42px; border-radius: 8px; border: 1px solid var(--border); margin-left: 8px; vertical-align: middle; }

/* ---------- 思考过程折叠面板（chat 气泡 / multi 卡片共用 think-text） ---------- */
.msg-think, .ai-card-think {
  margin: 0 0 8px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--accent-weak);
}
.msg-think summary, .ai-card-think summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  padding: 6px 10px;
  user-select: none;
  list-style: none;
}
.msg-think summary::marker, .ai-card-think summary::marker { content: ''; }
.msg-think summary::before, .ai-card-think summary::before { content: '▸ '; font-size: 10px; }
.msg-think[open] summary::before, .ai-card-think[open] summary::before { content: '▾ '; }
.think-text {
  padding: 0 10px 8px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 220px;
  overflow-y: auto;
}
.msg-err {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--danger);
  border-top: 1px dashed var(--border);
  padding-top: 6px;
}

/* ---------- Markdown 渲染（msg-text 气泡正文 / ai-card-body 卡片正文） ---------- */
.msg-text { white-space: normal; }
.msg-text > :first-child, .ai-card-body > :first-child, .syn-result > :first-child { margin-top: 0; }
.msg-text > :last-child, .ai-card-body > :last-child, .syn-result > :last-child { margin-bottom: 0; }
.msg-text p, .ai-card-body p, .syn-result p { margin: 6px 0; }
.msg-text h1, .msg-text h2, .msg-text h3, .msg-text h4, .msg-text h5, .msg-text h6,
.ai-card-body h1, .ai-card-body h2, .ai-card-body h3, .ai-card-body h4, .ai-card-body h5, .ai-card-body h6,
.syn-result h1, .syn-result h2, .syn-result h3, .syn-result h4, .syn-result h5, .syn-result h6 {
  margin: 10px 0 6px;
  line-height: 1.4;
  color: var(--text);
}
.msg-text h1, .ai-card-body h1, .syn-result h1 { font-size: 18px; }
.msg-text h2, .ai-card-body h2, .syn-result h2 { font-size: 16px; }
.msg-text h3, .ai-card-body h3, .syn-result h3 { font-size: 15px; }
.msg-text h4, .msg-text h5, .msg-text h6,
.ai-card-body h4, .ai-card-body h5, .ai-card-body h6,
.syn-result h4, .syn-result h5, .syn-result h6 { font-size: 14px; }
.msg-text ul, .msg-text ol, .ai-card-body ul, .ai-card-body ol, .syn-result ul, .syn-result ol {
  margin: 6px 0;
  padding-left: 20px;
}
.msg-text li, .ai-card-body li, .syn-result li { margin: 2px 0; }
.msg-text a, .ai-card-body a, .syn-result a { color: var(--accent); }
.msg-text code, .ai-card-body code, .syn-result code {
  background: rgba(127, 127, 127, .16);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: "SFMono-Regular", Consolas, "Microsoft YaHei", monospace;
  font-size: .92em;
}
.msg-text pre, .ai-card-body pre, .syn-result pre {
  margin: 8px 0;
  padding: 10px 12px;
  background: rgba(127, 127, 127, .12);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
  white-space: pre;
}
.msg-text pre code, .ai-card-body pre code, .syn-result pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}
.msg-text blockquote, .ai-card-body blockquote, .syn-result blockquote {
  margin: 8px 0;
  padding: 2px 0 2px 12px;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}
.msg-text table, .ai-card-body table, .syn-result table {
  border-collapse: collapse;
  margin: 8px 0;
  max-width: 100%;
  display: block;
  overflow-x: auto;
}
.msg-text th, .msg-text td, .ai-card-body th, .ai-card-body td, .syn-result th, .syn-result td {
  border: 1px solid var(--border);
  padding: 5px 10px;
  font-size: 13px;
}
.msg-text th, .ai-card-body th, .syn-result th { background: var(--accent-weak); }
.msg-text hr, .ai-card-body hr, .syn-result hr { border: none; border-top: 1px solid var(--border); margin: 10px 0; }

/* KaTeX：长公式横向滚动，避免撑破气泡/卡片 */
.katex-display { overflow-x: auto; overflow-y: hidden; padding: 4px 0; }
.katex { font-size: 1.05em; }