/* =====================================================================
 * 对话式排查布局（桌面：侧栏 + 主对话；手机：抽屉侧栏 + 单列）
 * ===================================================================== */

html, body { height: 100%; }
body.chat-body { margin: 0; background: var(--bg); color: var(--fg); }

.chat-app {
  display: flex;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}
.only-mobile { display: none !important; }

/* ---------------- 侧栏 ---------------- */
.chat-side {
  width: 278px;
  flex: 0 0 278px;
  display: flex;
  flex-direction: column;
  background: var(--bg-soft);
  border-right: 2px solid var(--line-strong);
  min-height: 0;
}
.side-head { padding: 16px 14px 10px; border-bottom: 1px solid var(--line); }
.side-brand { font-size: 18px; font-weight: 700; line-height: 1.3; }
.side-sub { font-size: 12.5px; color: var(--fg-mute); margin-top: 3px; }
.side-new {
  width: 100%;
  margin-top: 12px;
  padding: 9px 12px;
  font-size: 14.5px;
}
.side-label {
  padding: 12px 16px 4px;
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: .05em;
}
.side-list { flex: 1; overflow-y: auto; padding: 0 8px 10px; min-height: 0; }
.chat-item {
  position: relative;
  padding: 9px 10px 8px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  margin-bottom: 2px;
}
.chat-item:hover { background: var(--bg-sunken); }
.chat-item.active { background: var(--bg); border-color: var(--line-strong); }
.chat-item .ci-title {
  font-size: 14px;
  line-height: 1.45;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 22px;
}
.chat-item .ci-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--fg-mute);
}
.chat-item .ci-del {
  position: absolute;
  right: 4px;
  top: 6px;
  border: 0;
  background: transparent;
  color: var(--fg-mute);
  cursor: pointer;
  font-size: 15px;
  padding: 2px 5px;
  border-radius: 4px;
  display: none;
}
.chat-item:hover .ci-del { display: block; }
.chat-item .ci-del:hover { color: var(--danger); background: var(--danger-soft); }
.side-foot {
  border-top: 1px solid var(--line);
  padding: 10px 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  font-size: 13px;
}
.side-foot a { color: var(--fg-soft); text-decoration: none; }
.side-foot a:hover { color: var(--accent); }
.side-foot .spacer { flex: 1; }

/* ---------------- 主区 ---------------- */
.chat-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg);
}
.chat-top {
  height: 54px;
  flex: 0 0 54px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.chat-title {
  font-size: 15.5px;
  font-weight: 650;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 42vw;
}
.chat-badges { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.chat-badge {
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--fg-soft);
  background: var(--bg-soft);
  white-space: nowrap;
}
.chat-badge.ok { color: var(--ok); border-color: var(--ok); background: var(--ok-soft); }
.icon-btn {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg);
  border-radius: 5px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
}
.back-btn {
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
  color: var(--fg-soft);
  font-size: 21px;
  padding: 0;
  margin-right: 2px;
}
.back-btn:hover { color: var(--accent); }
.chat-machine {
  font: inherit;
  font-size: 13px;
  padding: 5px 7px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--bg);
  color: var(--fg);
}

/* ---------------- 模式切换 / L1 部署 ---------------- */
.mode-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  flex: 0 0 auto;
}
.mode-seg {
  display: flex;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  overflow: hidden;
}
.mode-btn {
  border: 0;
  background: transparent;
  padding: 6px 12px;
  font: inherit;
  font-size: 13px;
  color: var(--fg-soft);
  cursor: pointer;
}
.mode-btn.active { background: var(--accent); color: #fff; }
.mode-btn:disabled { opacity: .55; cursor: wait; }
.mode-cloud {
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--fg-soft);
  border-radius: 999px;
  padding: 5px 12px;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
}
.mode-cloud:hover { border-color: var(--accent); color: var(--accent); }

.mode-hint {
  padding: 4px 16px 6px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--fg-mute);
  font-size: 12px;
  line-height: 1.5;
}
.l1-deploy {
  padding: 10px 16px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--accent-soft);
  flex: 0 0 auto;
}
.l1-deploy-head {
  display: flex;
  justify-content: space-between;
  font-size: 13.5px;
  margin-bottom: 6px;
}
.l1-bar {
  height: 8px;
  background: var(--bg-sunken);
  border-radius: 999px;
  overflow: hidden;
}
.l1-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .2s;
}
.l1-deploy .hint { margin: 6px 0 0; font-size: 12px; }

@media (max-width: 860px) {
  .mode-bar { padding: 5px 10px; }
  .mode-btn { padding: 5px 9px; font-size: 12.5px; }
  .mode-cloud { font-size: 11.5px; padding: 4px 8px; }
  .l1-deploy { padding: 8px 10px 10px; }
}

/* ---------------- 消息区 ---------------- */
.chat-thread {
  flex: 1;
  overflow-y: auto;
  padding: 22px 20px 28px;
  min-height: 0;
  /* 不要平滑滚动：切换任务时会从顶部动画拉到底部，体感很差 */
  scroll-behavior: auto;
}
.msg-row { display: flex; gap: 10px; margin: 0 auto 18px; max-width: 920px; align-items: flex-start; }
.msg-row.user { flex-direction: row-reverse; }
.avatar {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  margin-top: 2px;
}
.msg-row.user .avatar { background: var(--fg-soft); }
.bubble {
  max-width: min(780px, calc(100% - 50px));
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 10px;
  padding: 12px 14px;
  line-height: 1.7;
  font-size: 15px;
  overflow-wrap: anywhere;
}
.msg-row.user .bubble {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  white-space: pre-wrap;
}
.msg-row.assistant .bubble { border-top-left-radius: 3px; }
.msg-row.user .bubble { border-top-right-radius: 3px; }
.bubble .result-title { font-size: 17px; font-weight: 700; line-height: 1.4; margin: 0 0 4px; }
.bubble .result-summary { font-size: 14px; color: var(--fg-soft); margin: 0 0 10px; }
.bubble .warn-line { font-size: 13.5px; color: var(--warn); margin: 6px 0; }
.bubble .note-line { font-size: 13px; color: var(--fg-mute); margin: 5px 0; }
.bubble .badge { margin-bottom: 8px; }

.cause-list { margin: 8px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.cause-list li { border-left: 3px solid var(--line-strong); padding: 2px 0 2px 9px; }
.cause-list li:first-child { border-left-color: var(--accent); }
.cause-list .c-main { font-size: 14.5px; font-weight: 600; }
.cause-list .c-meta { font-size: 12.5px; color: var(--fg-mute); margin-top: 2px; }
.cause-list .c-src { font-size: 12.5px; color: var(--fg-soft); margin-top: 3px; }
.cause-list .c-src a, .bubble a { color: var(--accent); }

details.result-fold { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
details.result-fold > summary { cursor: pointer; font-size: 14px; font-weight: 600; padding: 3px 0; }
details.result-fold ol, details.result-fold ul { margin: 6px 0 2px; padding-left: 22px; font-size: 14px; }
details.result-fold li { margin: 4px 0; }

.result-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.result-actions .btn { font-size: 13px; padding: 5px 10px; }
.quick-chips { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 10px; }
.chip {
  font: inherit;
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }

.msg-img {
  display: block;
  max-width: min(360px, 100%);
  max-height: 320px;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid var(--line);
  margin-bottom: 7px;
  background: #111;
}
.msg-text { white-space: pre-wrap; }

/* AI 观察（图片识别结果） */
.obs-card { font-size: 14px; }
.obs-title { font-weight: 700; font-size: 15.5px; margin-bottom: 8px; }
.obs-block {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  margin: 7px 0;
  background: var(--bg-soft);
}
.obs-label { font-size: 12px; color: var(--fg-mute); margin-bottom: 2px; }
.obs-main { font-size: 15px; font-weight: 650; }
.obs-code { font-family: Consolas, monospace; font-size: 26px; letter-spacing: 2px; font-weight: 700; }
.obs-meta { font-size: 12.5px; color: var(--fg-soft); line-height: 1.6; }
.obs-raw {
  max-height: 180px;
  overflow: auto;
  background: var(--bg-sunken);
  padding: 8px;
  font-size: 12px;
  white-space: pre-wrap;
  margin: 6px 0 0;
}
.obs-foot { font-size: 12px; color: var(--fg-mute); margin-top: 6px; }

.typing .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--fg-mute); display: inline-block; margin-right: 4px; animation: chat-blink 1.2s infinite; }
.typing .dot:nth-child(2) { animation-delay: .2s; }
.typing .dot:nth-child(3) { animation-delay: .4s; }
@keyframes chat-blink { 0%, 80%, 100% { opacity: .2; } 40% { opacity: 1; } }

.welcome h3 { margin: 0 0 6px; font-size: 17px; }
.welcome p { margin: 0 0 8px; color: var(--fg-soft); font-size: 14.5px; }

/* ---------------- 输入区 ---------------- */
.chat-composer {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding: 10px 20px 12px;
}
.composer-box {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  border: 2px solid var(--line-strong);
  border-radius: 10px;
  padding: 7px 8px;
  background: var(--bg);
}
.composer-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.composer-box textarea {
  flex: 1;
  min-width: 0;
  resize: none;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 16px;
  line-height: 1.55;
  max-height: 160px;
  padding: 6px 4px;
}
.composer-box .icon-btn { flex: 0 0 auto; height: 38px; width: 38px; }
.composer-box .send-btn { flex: 0 0 auto; height: 38px; padding: 0 16px; }
.composer-hint {
  max-width: 920px;
  margin: 6px auto 0;
  font-size: 12px;
  color: var(--fg-mute);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---------------- 手机端 ---------------- */
.chat-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(12, 16, 22, .45);
  z-index: 40;
}
@media (max-width: 860px) {
  .only-mobile { display: inline-flex !important; }
  .chat-side {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    z-index: 50;
    width: 82vw;
    max-width: 320px;
    transform: translateX(-105%);
    transition: transform .22s ease;
    box-shadow: 0 0 30px rgba(0,0,0,.25);
  }
  .chat-side.open { transform: translateX(0); }
  .chat-overlay.open { display: block; }
  .chat-top { padding: 0 10px; height: 50px; flex-basis: 50px; }
  .chat-title { max-width: 38vw; font-size: 14.5px; }
  .chat-badges { display: none; }
  .chat-machine { font-size: 12px; max-width: 110px; }
  .chat-thread { padding: 14px 10px 18px; }
  .msg-row { gap: 7px; margin-bottom: 14px; }
  .avatar { width: 26px; height: 26px; flex-basis: 26px; font-size: 11px; }
  .bubble { padding: 10px 11px; font-size: 14.5px; max-width: calc(100% - 36px); }
  .bubble .result-title { font-size: 16px; }
  .chat-composer { padding: 8px 8px 10px; }
  .composer-box { padding: 5px 6px; }
  .composer-box textarea { font-size: 16px; }
  .composer-hint { font-size: 11px; padding: 0 2px; }
}