/* ============================================================
   BOILER-TUBE LIFECYCLE MANAGEMENT SYSTEM · AI 数据助手 · 样式
   assets/app/assistant-v1.css · v1.0.0
   ------------------------------------------------------------
   约定：
   1. 只使用 app-v8.0.css 的 :root / html[data-theme="light"] 设计令牌，
      不新增任何未定义的 CSS 变量；深浅主题自动跟随 <html data-theme>。
   2. 与既有玻璃态工业控制台质感一致（参考 .card / .btn / .btn-ai /
      .llm-panel / .llm-view-tabs / .toast-host 的写法）。
   3. 类名统一 assistant-* 前缀；悬浮入口固定右下角，≤700px 面板全屏。
   ============================================================ */

/* ---------- 挂载容器：不占文档流，不遮挡页面 ---------- */
.assistant-root {
  position: fixed;
  inset: 0;
  z-index: 1003;
  pointer-events: none;
}

/* 悬浮入口让出右下角 Toast 的位置（仅当助手已挂载时生效） */
body:has(> .assistant-root) .toast-host {
  bottom: 108px;
}

/* 按需入口在完整助手挂载后退出，避免两个入口重叠。 */
#assistant-lazy-launcher[hidden],
body:has(#assistantMount .assistant-launcher) #assistant-lazy-launcher { display: none; }

/* ---------- 悬浮入口 ---------- */
.assistant-launcher {
  position: absolute;
  right: 24px;
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px 10px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-full);
  background: var(--surface-glass-1);
  backdrop-filter: blur(18px) saturate(1.5);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.4px;
  cursor: pointer;
  pointer-events: auto;
  box-shadow: var(--shadow-lift);
  transition: transform var(--dur-med) var(--ease-out),
              box-shadow var(--dur-med) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}

.assistant-launcher:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-pop), var(--glow-soft);
}

.assistant-launcher:active {
  transform: translateY(0) scale(0.98);
}

.assistant-launcher-orb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--info-violet));
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  box-shadow: var(--glow-soft), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.assistant-launcher-label {
  white-space: nowrap;
}

.assistant-launcher-badge {
  position: absolute;
  top: 7px;
  right: 9px;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--danger);
  box-shadow: 0 0 0 2px var(--bg-1), 0 0 10px var(--danger);
}

.assistant-launcher-badge[hidden] {
  display: none;
}

/* ---------- 面板骨架 ---------- */
.assistant-panel {
  position: absolute;
  right: 24px;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  width: min(430px, calc(100vw - 40px));
  height: min(680px, calc(100vh - 148px));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-2xl);
  background: var(--surface-glass-2);
  backdrop-filter: blur(28px) saturate(1.5);
  -webkit-backdrop-filter: blur(28px) saturate(1.5);
  box-shadow: var(--shadow-pop);
  overflow: hidden;
  pointer-events: auto;
  animation: assistantPanelIn var(--dur-med) var(--ease-out);
}

.assistant-panel[hidden] {
  display: none;
}

@keyframes assistantPanelIn {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

/* ---------- 头部 ---------- */
.assistant-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, transparent), transparent);
}

.assistant-ident {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.assistant-ident-orb {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--info-violet));
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 800;
  box-shadow: var(--glow-soft), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.assistant-ident-text {
  min-width: 0;
}

.assistant-title {
  margin: 0;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.4px;
  color: var(--text-hi);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.assistant-status {
  display: flex;
  align-items: center;
  gap: 5px;
  margin: 1px 0 0;
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: 0.3px;
  color: var(--text-faint);
}

.assistant-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--warn);
  box-shadow: 0 0 6px var(--warn);
}

.assistant-status.is-online::before {
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
}

.assistant-head-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.assistant-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}

.assistant-icon-btn:hover {
  color: var(--accent-bright);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: var(--line-strong);
}

.assistant-icon-btn--close:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 14%, transparent);
  border-color: var(--danger);
}

/* ---------- 消息区 ---------- */
.assistant-messages {
  flex: 1 1 auto;
  min-height: 0;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.assistant-empty {
  margin: auto 4px;
  padding: 10px 6px;
  text-align: left;
}

.assistant-empty-title {
  margin: 0 0 6px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-hi);
}

.assistant-empty-desc {
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-dim);
}

.assistant-empty-list {
  margin: 0 0 10px;
  padding-left: 17px;
  font-size: 11.5px;
  line-height: 1.85;
  color: var(--text-faint);
}

.assistant-empty-role {
  margin: 0;
  font-size: 10.5px;
  letter-spacing: 0.4px;
  color: var(--text-ghost);
}

.assistant-msg {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  max-width: 100%;
}

.assistant-msg[data-role="user"] {
  flex-direction: row-reverse;
}

.assistant-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--info-violet), var(--info-violet-soft));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.assistant-msg[data-role="user"] .assistant-avatar {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: var(--accent-ink);
}

.assistant-bubble-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  max-width: calc(100% - 35px);
}

.assistant-msg[data-role="user"] .assistant-bubble-wrap {
  align-items: flex-end;
}

.assistant-bubble {
  padding: 9px 12px;
  border: 1px solid var(--line-subtle);
  border-radius: 14px 14px 14px 5px;
  background: var(--surface-sunken);
  color: var(--text-mid);
  font-size: 12.5px;
  line-height: 1.7;
  word-break: break-word;
}

.assistant-msg[data-role="user"] .assistant-bubble {
  border-color: var(--line-strong);
  border-radius: 14px 14px 5px 14px;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 20%, transparent),
    color-mix(in srgb, var(--accent) 8%, transparent));
  color: var(--text-hi);
}

.assistant-bubble-text {
  margin: 0;
  white-space: pre-wrap;
}

.assistant-bubble--empty .assistant-bubble-text {
  color: var(--text-ghost);
  font-style: italic;
}

.assistant-msg-time {
  display: block;
  margin-top: 3px;
  font-size: 10px;
  line-height: 1.4;
  text-align: right;
  color: var(--text-ghost);
  font-variant-numeric: tabular-nums;
}

.assistant-source {
  align-self: flex-start;
  font-size: 10px;
  letter-spacing: 0.4px;
  color: var(--text-ghost);
}

/* ---------- 附件 ---------- */
.assistant-attachment {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 6px 10px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  color: var(--text-dim);
  font-size: 11.5px;
}

.assistant-attachment-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  min-width: 30px;
  height: 20px;
  padding: 0 5px;
  border-radius: var(--radius-xs);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.assistant-attachment-name {
  min-width: 0;
  max-width: 210px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.assistant-attachment-size {
  flex: none;
  font-size: 10px;
  color: var(--text-ghost);
  font-variant-numeric: tabular-nums;
}

/* ---------- 卡片通用（清洗报告 / 操作卡 / 分析卡） ---------- */
.assistant-cleaning,
.assistant-op,
.assistant-analysis {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  color: var(--text-mid);
  font-size: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.assistant-cleaning[data-tone="ok"],
.assistant-op[data-tone="success"] { border-left-color: var(--ok); }
.assistant-cleaning[data-tone="warn"],
.assistant-op[data-tone="warning"] { border-left-color: var(--warn); }
.assistant-cleaning[data-tone="danger"],
.assistant-op[data-tone="error"] { border-left-color: var(--danger); }

.assistant-card-head {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.assistant-card-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  color: var(--text-hi);
}

.assistant-card-sub {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 10.5px;
  color: var(--text-faint);
}

.assistant-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent-bright);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  white-space: nowrap;
}

.assistant-chip[data-tone="ok"] {
  border-color: color-mix(in srgb, var(--ok) 45%, transparent);
  background: color-mix(in srgb, var(--ok) 14%, transparent);
  color: var(--ok);
}

.assistant-chip[data-tone="warn"] {
  border-color: color-mix(in srgb, var(--warn) 45%, transparent);
  background: color-mix(in srgb, var(--warn) 14%, transparent);
  color: var(--warn);
}

.assistant-chip[data-tone="danger"] {
  border-color: color-mix(in srgb, var(--danger) 45%, transparent);
  background: color-mix(in srgb, var(--danger) 14%, transparent);
  color: var(--danger);
}

.assistant-chip[data-tone="pending"] {
  border-color: var(--line);
  background: var(--surface-sunken);
  color: var(--text-dim);
}

/* ---------- 指标 ---------- */
.assistant-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(62px, 1fr));
  gap: 7px;
  margin: 8px 0 10px;
}

/* 分析卡片的指标更多（4~6 个），给每格更宽的基准，避免长数值挤成两行 */
.assistant-analysis .assistant-metrics {
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
}

.assistant-metric {
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  text-align: center;
}

.assistant-metric-k {
  display: block;
  font-size: 9.5px;
  letter-spacing: 0.4px;
  color: var(--text-faint);
}

.assistant-metric-v {
  display: block;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-hi);
  font-variant-numeric: tabular-nums;
}

.assistant-metric[data-tone="ok"] .assistant-metric-v { color: var(--ok); }
.assistant-metric[data-tone="warn"] .assistant-metric-v { color: var(--warn); }
.assistant-metric[data-tone="danger"] .assistant-metric-v { color: var(--danger); }
.assistant-metric[data-tone="accent"] .assistant-metric-v { color: var(--accent-bright); }

/* ---------- 检查项 ---------- */
.assistant-checks {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.assistant-check {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent) 4%, transparent);
}

.assistant-check[data-severity="error"] { background: color-mix(in srgb, var(--danger) 8%, transparent); }
.assistant-check[data-severity="warning"] { background: color-mix(in srgb, var(--warn) 8%, transparent); }

.assistant-check-tag {
  flex: none;
  margin-top: 1px;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent-bright);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.assistant-check[data-severity="error"] .assistant-check-tag {
  background: color-mix(in srgb, var(--danger) 16%, transparent);
  color: var(--danger);
}

.assistant-check[data-severity="warning"] .assistant-check-tag {
  background: color-mix(in srgb, var(--warn) 16%, transparent);
  color: var(--warn);
}

.assistant-check-body {
  min-width: 0;
  flex: 1 1 auto;
}

.assistant-check-title {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin: 0;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-mid);
}

.assistant-check-rows {
  font-size: 9.5px;
  font-weight: 500;
  color: var(--text-ghost);
}

.assistant-check-detail,
.assistant-check-rows-line,
.assistant-check-sample,
.assistant-check-suggest {
  margin: 2px 0 0;
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--text-faint);
}

.assistant-check-suggest { color: var(--text-dim); }

.assistant-cleaning-notes {
  margin-top: 8px;
  font-size: 10.5px;
  color: var(--text-faint);
}

.assistant-cleaning-notes summary {
  cursor: pointer;
  color: var(--text-dim);
  user-select: none;
}

.assistant-cleaning-notes ul {
  margin: 5px 0 0;
  padding-left: 17px;
  line-height: 1.7;
}

/* ---------- 操作卡 ---------- */
.assistant-op-detail {
  margin: 0 0 8px;
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--text-dim);
}

.assistant-op-summary {
  margin: 8px 0 0;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text-mid);
}

.assistant-op[data-tone="success"] .assistant-op-summary { color: var(--ok); }
.assistant-op[data-tone="warning"] .assistant-op-summary { color: var(--warn); }
.assistant-op[data-tone="error"] .assistant-op-summary { color: var(--danger); }

.assistant-warnings {
  margin: 4px 0 8px;
  padding-left: 17px;
  font-size: 10.5px;
  line-height: 1.65;
  color: var(--warn);
}

.assistant-op[data-status="running"] {
  opacity: 0.85;
}

/* ---------- 卡片动作按钮 ---------- */
.assistant-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.assistant-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-sunken);
  color: var(--text-mid);
  font-family: var(--font-ui);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.assistant-btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-bright);
}

.assistant-btn:active {
  transform: translateY(0) scale(0.98);
}

.assistant-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.assistant-btn--primary {
  border-color: var(--accent);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: var(--accent-ink);
  font-weight: 700;
  box-shadow: var(--shadow-sm), var(--glow-soft);
}

.assistant-btn--primary:hover {
  border-color: var(--accent-bright);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-deep));
  color: var(--accent-ink);
  box-shadow: var(--shadow-md), var(--glow-accent);
}

.assistant-btn--danger {
  border-color: var(--danger);
  background: linear-gradient(135deg, var(--danger-soft), var(--danger));
  color: #ffffff;
  font-weight: 700;
}

.assistant-btn--danger:hover {
  border-color: var(--danger-soft);
  background: linear-gradient(135deg, var(--danger), var(--danger-deep));
  color: #ffffff;
}

.assistant-btn--ghost {
  border-color: var(--line);
  background: transparent;
  color: var(--text-dim);
}

/* ---------- 快捷指令 ---------- */
.assistant-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 9px 13px;
  border-top: 1px solid var(--line-subtle);
  max-height: 132px;
  overflow-y: auto;
}

.assistant-quick[hidden] {
  display: none;
}

.assistant-chip--prompt {
  border-color: color-mix(in srgb, var(--accent) 32%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--accent-bright);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
  padding: 5px 11px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.assistant-chip--prompt:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text-hi);
}

.assistant-quick.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* ---------- 忙碌指示 ---------- */
.assistant-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  border-top: 1px solid var(--line-subtle);
}

.assistant-typing[hidden] {
  display: none;
}

.assistant-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--accent);
  animation: assistantTyping 1.2s var(--ease-in-out) infinite;
}

.assistant-typing-dot:nth-child(2) { animation-delay: 0.16s; }
.assistant-typing-dot:nth-child(3) { animation-delay: 0.32s; }

@keyframes assistantTyping {
  0%, 100% { opacity: 0.25; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}

/* ---------- 输入区 ---------- */
.assistant-composer {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  background: linear-gradient(0deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent);
}

.assistant-attach {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
  color: var(--text-dim);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.2px;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.assistant-attach:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-bright);
}

.assistant-attach:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.assistant-attach.is-disabled {
  opacity: 0.45;
  pointer-events: none;
}

.assistant-file {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.assistant-input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 36px;
  max-height: 132px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 12.5px;
  line-height: 1.5;
  resize: none;
  overflow-y: auto;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.assistant-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

.assistant-input::placeholder {
  color: var(--text-ghost);
}

.assistant-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: var(--accent-ink);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow-sm), var(--glow-soft);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}

.assistant-send:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md), var(--glow-accent);
}

.assistant-send:active:not(:disabled) {
  transform: translateY(0) scale(0.97);
}

.assistant-send:disabled,
.assistant-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- 底部状态 ---------- */
.assistant-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px 9px;
}

.assistant-model-hint {
  padding: 0;
  border: 0;
  background: none;
  color: var(--text-faint);
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.2px;
  text-decoration: underline dotted;
  text-underline-offset: 2px;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}

.assistant-model-hint:hover { color: var(--accent-bright); }
.assistant-model-hint.is-configured { color: var(--ok); }

.assistant-role {
  margin-left: auto;
  padding: 1px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius-full);
  font-size: 9.5px;
  letter-spacing: 0.4px;
  color: var(--text-dim);
}

/* ---------- 历史抽屉 ---------- */
.assistant-history {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  padding: 13px 14px;
  background: var(--surface-glass-2);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  overflow-y: auto;
  animation: assistantHistoryIn var(--dur-fast) var(--ease-out);
}

.assistant-history[hidden] {
  display: none;
}

@keyframes assistantHistoryIn {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: none; }
}

.assistant-history-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.assistant-history-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-hi);
}

.assistant-history-count {
  font-size: 10px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}

.assistant-history-close {
  margin-left: auto;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--dur-fast), background var(--dur-fast);
}

.assistant-history-close:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 12%, transparent);
}

.assistant-history-empty {
  margin: 16px 2px;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--text-faint);
}

.assistant-history-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-top: 10px;
}

.assistant-history-item {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
  overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease-out);
}

.assistant-history-item:hover {
  border-color: var(--line-strong);
}

.assistant-history-item.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent);
}

.assistant-history-open {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  padding: 8px 10px;
  border: 0;
  background: transparent;
  color: inherit;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.assistant-history-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text);
}

.assistant-history-item.is-active .assistant-history-name {
  color: var(--accent-bright);
}

.assistant-history-meta {
  font-size: 9.5px;
  color: var(--text-ghost);
  font-variant-numeric: tabular-nums;
}

.assistant-history-del {
  flex: none;
  width: 30px;
  border: 0;
  border-left: 1px solid var(--line-subtle);
  background: transparent;
  color: var(--text-ghost);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--dur-fast), background var(--dur-fast);
}

.assistant-history-del:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 12%, transparent);
}

/* ---------- 浅色主题微调（令牌已随主题切换，这里补玻璃层次） ---------- */
html[data-theme="light"] .assistant-panel {
  background: linear-gradient(168deg, #ffffff, #f6fafc);
  border-color: var(--line-strong);
}

html[data-theme="light"] .assistant-launcher {
  background: linear-gradient(168deg, #ffffff, #f2f8fa);
}

html[data-theme="light"] .assistant-head {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent);
}

html[data-theme="light"] .assistant-cleaning,
html[data-theme="light"] .assistant-op {
  background: linear-gradient(165deg, #ffffff, #f7fbfc);
  box-shadow: var(--shadow-xs);
}

html[data-theme="light"] .assistant-history {
  background: linear-gradient(180deg, #ffffff, #f5fafb);
}

html[data-theme="light"] .assistant-bubble {
  background: #f3f7f9;
  border-color: var(--line);
}

html[data-theme="light"] .assistant-msg[data-role="user"] .assistant-bubble {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 14%, #ffffff),
    color-mix(in srgb, var(--accent) 6%, #ffffff));
  border-color: var(--line-strong);
}

html[data-theme="light"] .assistant-launcher-badge {
  box-shadow: 0 0 0 2px #ffffff;
}

html[data-theme="light"] .assistant-btn {
  background: #ffffff;
}

html[data-theme="light"] .assistant-btn--primary {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: var(--accent-ink);
}

html[data-theme="light"] .assistant-btn--danger {
  background: linear-gradient(135deg, var(--danger-soft), var(--danger));
  color: #ffffff;
}

/* ---------- 移动端：面板全屏、输入贴底、安全区 ---------- */
@media (max-width: 700px) {
  body:has(> .assistant-root) .toast-host {
    bottom: 92px;
  }

  .assistant-launcher {
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    padding: 9px 14px 9px 9px;
  }

  .assistant-launcher-label {
    font-size: 12px;
  }

  .assistant-panel {
    position: fixed;
    inset: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    max-height: none;
    border: 0;
    border-radius: 0;
    animation: assistantPanelInMobile var(--dur-med) var(--ease-out);
  }

  .assistant-head {
    padding-top: calc(13px + env(safe-area-inset-top, 0px));
  }

  .assistant-messages {
    padding: 14px 12px;
  }

  .assistant-bubble-wrap {
    max-width: calc(100% - 31px);
  }

  .assistant-quick {
    max-height: 108px;
    padding: 8px 12px;
  }

  .assistant-composer {
    padding: 9px 10px calc(9px + env(safe-area-inset-bottom, 0px));
  }

  .assistant-foot {
    padding: 0 12px calc(8px + env(safe-area-inset-bottom, 0px));
  }
}

@keyframes assistantPanelInMobile {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 420px) {
  .assistant-head-actions {
    gap: 2px;
  }

  .assistant-icon-btn {
    width: 28px;
    height: 28px;
  }

  .assistant-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .assistant-launcher-label {
    display: none;
  }

  .assistant-launcher {
    padding: 9px;
  }
}

/* ---------- 打印：不输出助手界面 ---------- */
@media print {
  .assistant-root {
    display: none !important;
  }
}


/* ============================================================
   契约类名别名：操作卡片实现用 .assistant-op，契约文档写的是
   .assistant-operation；两者保持同一套视觉，避免外部引用失效。
   ============================================================ */
.assistant-operation {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-elevated);
  color: var(--text-mid);
  font-size: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}
.assistant-operation[data-tone="success"] { border-left-color: var(--ok); }
.assistant-operation[data-tone="warning"] { border-left-color: var(--warn); }
.assistant-operation[data-tone="error"] { border-left-color: var(--danger); }

/* ============================================================
   分析卡片：指标 + SVG 图表 + 结论 + 明细
   ------------------------------------------------------------
   图表内部颜色全部由 JS 写入 var(--*) 设计令牌，
   因此深浅主题切换无需额外样式分支。
   ============================================================ */
.assistant-analysis {
  margin-top: 8px;
}

.assistant-analysis[data-tone="warn"] { border-left-color: var(--warn); }
.assistant-analysis[data-tone="danger"] { border-left-color: var(--danger); }

.assistant-analysis-chart {
  margin: 10px 0 8px;
  padding: 8px 8px 4px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
}

.assistant-chart-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  font-family: var(--font-ui);
}

.assistant-analysis-chart-empty {
  margin: 0;
  padding: 28px 0;
  text-align: center;
  font-size: 11.5px;
  color: var(--text-faint);
}

.assistant-analysis-caption {
  display: block;
  margin-top: 6px;
  text-align: right;
  font-size: 9.5px;
  letter-spacing: 0.2px;
  color: var(--text-ghost);
}

/* 图表数据表：与图形同源，用于核对数值口径；默认折叠，不抢占图表的视觉重心 */
.chart-data {
  margin-top: 6px;
  border-top: 1px dashed var(--line-subtle);
  padding-top: 4px;
}

.chart-data > summary {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  list-style: none;
  font-size: 10.5px;
  color: var(--text-faint);
  padding: 3px 2px;
  border-radius: var(--radius-xs);
  transition: color 0.18s ease;
}

.chart-data > summary::-webkit-details-marker {
  display: none;
}

.chart-data > summary::before {
  content: '▸';
  font-size: 9px;
  transition: transform 0.18s ease;
}

.chart-data[open] > summary::before {
  transform: rotate(90deg);
}

.chart-data > summary:hover,
.chart-data > summary:focus-visible {
  color: var(--accent);
}

.chart-data-count {
  margin-left: auto;
  font-size: 9.5px;
  color: var(--text-ghost);
}

.chart-data-scroll {
  max-height: 220px;
  overflow: auto;
  margin-top: 4px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-xs);
}

.chart-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
}

.chart-data-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  text-align: left;
  font-weight: 600;
  padding: 5px 8px;
  background: var(--surface-sunken);
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-subtle);
  white-space: nowrap;
}

.chart-data-table td {
  padding: 4px 8px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-subtle);
  word-break: break-all;
}

.chart-data-table tbody tr:last-child td {
  border-bottom: none;
}

.chart-data-more {
  margin: 4px 2px 2px;
  font-size: 9.5px;
  color: var(--text-ghost);
}

.assistant-insights {
  margin: 8px 0 6px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.assistant-insight {
  position: relative;
  padding-left: 13px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text-mid);
}

.assistant-insight::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 4px;
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--accent);
  opacity: 0.85;
}

.assistant-analysis-table {
  margin-top: 6px;
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  background: var(--surface-sunken);
}

.assistant-analysis-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
}

.assistant-analysis-table th,
.assistant-analysis-table td {
  padding: 5px 8px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--line-subtle);
}

.assistant-analysis-table th {
  color: var(--text-faint);
  font-weight: 600;
  letter-spacing: 0.2px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

.assistant-analysis-table td {
  color: var(--text-dim);
}

.assistant-analysis-table tbody tr:last-child td {
  border-bottom: none;
}

.assistant-analysis-more {
  margin: 0;
  padding: 5px 8px;
  border-top: 1px dashed var(--line-subtle);
  font-size: 9.5px;
  color: var(--text-ghost);
}

.assistant-analysis-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  border: 1px solid color-mix(in srgb, var(--info-violet) 45%, transparent);
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--info-violet) 14%, transparent);
  color: var(--info-violet);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
  white-space: nowrap;
}

.assistant-analysis-advice {
  margin: 8px 0 0;
  padding: 7px 10px;
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text-mid);
}

.assistant-analysis-advice b {
  margin-right: 6px;
  color: var(--accent-bright);
  font-weight: 700;
}

.assistant-analysis-note {
  margin: 6px 0 0;
  font-size: 10px;
  line-height: 1.6;
  color: var(--text-ghost);
}

@media (max-width: 700px) {
  .assistant-analysis-chart {
    padding: 6px 4px 2px;
  }
  .assistant-analysis-table table {
    font-size: 10px;
  }
  .assistant-analysis-table th,
  .assistant-analysis-table td {
    padding: 4px 6px;
  }
}

/* ============ v1.1 文档识别与拖拽上传 ============ */
.assistant-panel.is-dragover {
  outline: 2px dashed var(--accent, #2dd4ff);
  outline-offset: -8px;
}
.assistant-panel.is-dragover .assistant-composer {
  background: rgba(45, 212, 255, 0.08);
}
.assistant-panel.is-dragover::after {
  content: '松开即上传：表格 / 图片 / PDF';
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  padding: 10px 22px;
  border-radius: 10px;
  background: rgba(4, 16, 28, 0.88);
  border: 1px solid var(--accent, #2dd4ff);
  color: var(--accent-bright, #5de0ff);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  pointer-events: none;
  z-index: 30;
}
html[data-theme="light"] .assistant-panel.is-dragover::after {
  background: rgba(255, 255, 255, 0.95);
  color: #0e7c9e;
}

/* ============ v1.2 会话附件条（多轮上下文） ============ */
.assistant-attachments {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 9px 13px 0;
  border-top: 1px solid var(--line-subtle);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 5%, transparent), transparent);
  max-height: 104px;
  overflow-y: auto;
}

.assistant-attachments[hidden] {
  display: none;
}

.assistant-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  padding: 3px 6px 3px 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius-full);
  background: var(--surface-sunken);
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 11px;
  line-height: 1.5;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.assistant-attachment-chip:hover {
  border-color: var(--line-strong);
  color: var(--text-mid);
}

.assistant-attachment-chip.is-current {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-bright);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.assistant-attachment-seq {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent-bright);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
}

.assistant-attachment-chip.is-current .assistant-attachment-seq {
  background: var(--accent);
  color: var(--accent-ink);
}

.assistant-attachment-label {
  min-width: 0;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

.assistant-attachment-meta {
  flex: none;
  font-size: 9.5px;
  letter-spacing: 0.2px;
  color: var(--text-ghost);
  font-variant-numeric: tabular-nums;
}

.assistant-attachment-chip.is-current .assistant-attachment-meta {
  color: inherit;
  opacity: 0.82;
}

.assistant-attachment-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 16px;
  height: 16px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--text-ghost);
  font-family: var(--font-ui);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.assistant-attachment-remove:hover {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 16%, transparent);
}

html[data-theme="light"] .assistant-attachment-chip {
  background: #ffffff;
}

html[data-theme="light"] .assistant-attachment-chip.is-current {
  background: color-mix(in srgb, var(--accent) 10%, #ffffff);
}

@media (max-width: 700px) {
  .assistant-attachments {
    padding: 8px 12px 0;
    max-height: 92px;
  }

  .assistant-attachment-label {
    max-width: 110px;
  }
}