/* === can.css — CAN 面板/工作台/1Hz反馈/ID快照/报文行展开/节点过滤 等 CAN 专用样式 === */
/* === CAN PANEL === */
.can-grid {
  display: grid; grid-template-columns: 70px 1fr 60px 1fr; gap: 10px;
}
.can-launch-card {
  background:
    radial-gradient(circle at top right, rgba(34,211,238,.18), transparent 28%),
    linear-gradient(138deg, rgba(18,29,41,.96), rgba(20,29,40,.92) 48%, rgba(14,21,31,.98) 100%);
  border: 1px solid rgba(34,211,238,.14);
  border-radius: 14px;
  padding: 20px;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.02),
    0 18px 40px rgba(0,0,0,.18);
  position: relative;
  overflow: hidden;
}
.can-launch-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, rgba(34,211,238,.9), rgba(34,211,238,.18));
}
.can-launch-copy {
  position: relative;
  z-index: 1;
}
.can-launch-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.can-launch-copy h3 {
  font-size: 22px;
  line-height: 1.2;
  margin: 6px 0 0;
}
.can-launch-desc {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.7;
  max-width: 700px;
}
.can-launch-kicker {
  color: #88ecff;
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  opacity: .92;
}
.can-launch-badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.18);
  color: #a9f4ff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.can-launch-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.can-launch-point {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  color: #c6d7e8;
  font-size: 12px;
}
.can-launch-point::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(34,211,238,.35);
}
.can-launch-actions {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(180px, .85fr);
  gap: 10px;
  margin-top: 18px;
  position: relative;
  z-index: 1;
}
.can-launch-primary,
.can-launch-secondary {
  min-height: 42px;
}
.can-launch-primary {
  box-shadow: 0 10px 24px rgba(34,211,238,.18);
}
.can-launch-secondary {
  color: #d5e4f4;
  border-color: rgba(255,255,255,.08);
  background: rgba(255,255,255,.015);
}
.can-launch-secondary:hover:not(:disabled) {
  background: rgba(255,255,255,.05);
  border-color: rgba(34,211,238,.18);
}
.can-launch-foot {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,.06);
  color: #91a6bc;
  font-size: 12px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}
.can-launch-foot-label {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  color: #d8e6f4;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.spi-grid {
  display: grid; grid-template-columns: 80px 1fr 80px 80px; gap: 10px;
}

/* === CAN WORKSPACE PAGE === */
.can-page::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 18%, rgba(34,211,238,.08), transparent 26%),
    radial-gradient(circle at 85% 14%, rgba(245,158,11,.05), transparent 24%);
}
.can-container {
  max-width: 1700px;
}
.can-header {
  position: sticky;
  top: 16px;
  z-index: 5;
  backdrop-filter: blur(14px);
  background: rgba(15,22,31,.86);
}
.can-header-actions {
  margin-left: auto;
}
.can-link-pill {
  text-decoration: none;
  color: var(--text);
}
.can-toolbar-card,
.can-table-card,
.can-editor-layout {
  margin-top: 18px;
}
.can-toolbar-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.1fr) 180px minmax(220px, .9fr) minmax(260px, 1fr);
  gap: 14px;
  align-items: stretch;
}
.can-toolbar-block {
  min-width: 0;
}
.can-toolbar-upload .upload-zone {
  height: 100%;
  min-height: 88px;
  padding: 18px 14px;
}
.can-file-info-inline {
  margin-top: 14px;
}
.can-file-name {
  font-weight: 700;
}
.can-toolbar-foot {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  margin-top: 14px;
  align-items: start;
}
.can-table-card-body {
  padding: 0;
}
.can-editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}
.can-sidepanel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.dbc-dropzone {
  position: relative;
  overflow: hidden;
}
.dbc-dropzone::after {
  content: "";
  position: absolute;
  inset: -40% auto auto -10%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(34,211,238,.18), transparent 68%);
  pointer-events: none;
}
.message-list {
  max-height: 390px;
  overflow: auto;
}
.message-table {
  /* 列宽随左栏宽度自适应压缩，不再强制水平滚动 */
  min-width: 0;
  width: 100%;
}
.message-table-head,
.message-row {
  display: grid;
  grid-template-columns:
    36px              /* 勾选 */
    32px              /* 展开 */
    40px              /* # */
    minmax(0, 1.6fr)  /* 报文名称 */
    96px              /* 标识符 */
    52px              /* 通道 */
    52px              /* 类型 */
    46px              /* DLC */
    50px              /* 信号 */
    minmax(0, 1fr)    /* 发送节点 */
    minmax(0, 2fr);   /* 注释 */
  align-items: center;
  min-width: 0;
}
.message-table-head {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #182330;
  border-bottom: 1px solid var(--border);
}
.message-row {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,.04);
  transition: background .12s ease, border-color .12s ease;
}
.message-row:hover {
  background: rgba(255,255,255,.03);
}
.message-row.active {
  background: linear-gradient(90deg, rgba(34,211,238,.2), rgba(34,211,238,.07));
  box-shadow: inset 3px 0 0 0 var(--accent);
}
.message-col {
  padding: 11px 12px;
  font-size: 12px;
  line-height: 1.45;
  border-right: 1px solid rgba(255,255,255,.03);
}
.message-table-head .message-col {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: #c8d6e7;
  text-transform: uppercase;
}
.message-col:last-child {
  border-right: 0;
}
.message-col-index,
.message-col-dlc,
.message-col-signal,
.message-col-channel,
.message-col-type {
  text-align: center;
}
.message-col-id,
.history-item-hex,
.can-frame-hex,
.can-title,
.can-subtitle,
.byte-pill,
.history-item-main,
.history-item-foot,
.signal-table,
.signal-cell-meta,
.signal-cell-range {
  font-family: var(--font-mono);
}
.message-col-id {
  color: var(--accent);
  font-size: 12px;
}
.can-empty-state {
  display: grid;
  place-items: center;
  min-height: 300px;
  text-align: center;
  border: 1px dashed rgba(34,211,238,.2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(26,36,50,.7), rgba(20,29,40,.96));
  padding: 28px;
}
.can-empty-icon {
  width: 70px;
  height: 70px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: rgba(34,211,238,.12);
  font-size: 32px;
  box-shadow: inset 0 0 0 1px rgba(34,211,238,.16);
}
.can-empty-state h3 {
  font-size: 22px;
  margin-bottom: 8px;
}
.can-empty-state p {
  max-width: 560px;
  color: var(--text-dim);
  line-height: 1.75;
}
.can-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .02em;
}
.can-subtitle {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 13px;
}
.can-selection-bar,
.history-item-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.can-selection-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.can-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}
.can-meta-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}
.can-meta-card span {
  display: block;
  font-size: 10px;
  color: var(--text-label);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.can-meta-card b {
  font-size: 14px;
}
.can-comment-note {
  margin-top: 16px;
}
.can-frame-panel {
  background: linear-gradient(180deg, rgba(26,36,50,.95), rgba(13,19,27,.98));
  border: 1px solid rgba(34,211,238,.12);
  border-radius: 16px;
  padding: 18px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.02);
}
.can-frame-panel-compact {
  padding: 16px;
}
.can-panel-kicker {
  color: var(--text-label);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.can-panel-title {
  margin-top: 6px;
  font-size: 16px;
  font-weight: 700;
}
.can-frame-hex {
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #081019;
  color: #7ef3ff;
  font-size: 18px;
  line-height: 1.6;
  word-break: break-all;
  border: 1px solid rgba(34,211,238,.16);
}
.can-byte-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.byte-pill {
  min-width: 62px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(34,211,238,.08);
  border: 1px solid rgba(34,211,238,.16);
  text-align: center;
  font-size: 12px;
}
.byte-pill b {
  display: block;
  color: var(--text-label);
  font-size: 10px;
  margin-bottom: 3px;
}
.signal-table-host {
  display: block;
  margin-top: 18px;
}
.signal-table {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.signal-table-head,
.signal-row {
  display: grid;
  grid-template-columns: 52px minmax(220px, 1.2fr) minmax(220px, 1fr) minmax(220px, 1fr) minmax(190px, .9fr) minmax(220px, 1fr);
  align-items: stretch;
}
.signal-table-head {
  background: #182330;
  border-bottom: 1px solid var(--border);
}
.signal-table-body {
  max-height: 520px;
  overflow: auto;
}
.signal-row {
  border-bottom: 1px solid rgba(255,255,255,.04);
  background: rgba(255,255,255,.01);
}
.signal-row:nth-child(even) {
  background: rgba(255,255,255,.025);
}
.signal-cell {
  padding: 11px 12px;
  border-right: 1px solid rgba(255,255,255,.03);
  font-size: 12px;
  line-height: 1.5;
  min-width: 0;
}
.signal-cell:last-child {
  border-right: 0;
}
.signal-table-head .signal-cell {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  color: #c8d6e7;
  text-transform: uppercase;
}
.signal-cell-index {
  text-align: center;
}
.signal-cell-name b,
.signal-cell-range b,
.signal-cell-meta b {
  display: block;
  font-size: 12px;
  color: var(--text);
}
.signal-cell-name small,
.signal-cell-range small,
.signal-cell-meta small,
.signal-cell-comment {
  display: block;
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.45;
}
.signal-input-compact {
  min-width: 0;
  padding: 8px 10px;
  font-size: 12px;
}
.can-response {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
  word-break: break-all;
}
.can-response.ok {
  border-color: rgba(34,197,94,.25);
  color: #c7f9d5;
}
.can-response.err {
  border-color: rgba(239,68,68,.25);
  color: #fecaca;
}
.can-response-label {
  color: var(--text-label);
  font-size: 11px;
  margin-bottom: 6px;
  font-family: var(--font);
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 620px;
  overflow: auto;
  padding-right: 4px;
}
.history-list-compact {
  max-height: 360px;
}
.history-item {
  padding: 12px 13px;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}
.history-item-time {
  color: var(--text-label);
  font-size: 11px;
}
.history-item-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
}
.history-item-tag.ok {
  background: rgba(34,197,94,.12);
  color: #b8f5cb;
}
.history-item-tag.err {
  background: rgba(239,68,68,.12);
  color: #fecaca;
}
.history-item-main {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text);
}
.history-item-hex {
  margin-top: 8px;
  font-size: 12px;
  color: #7ef3ff;
  word-break: break-all;
}
.history-item-foot {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-dim);
}

/* === CAN 1Hz FEEDBACK === */
.can-feedback-card { margin-top: 18px; }
.can-feedback-card .card-head {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}
.feedback-controls { display: flex; align-items: center; gap: 8px; }
.feedback-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.feedback-channel {
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
  border-radius: 10px; padding: 14px 16px;
}
.feedback-ch-head {
  font-weight: 700; font-size: 15px; margin-bottom: 10px;
  display: flex; align-items: center; gap: 8px;
}
.ch-dot {
  width: 10px; height: 10px; border-radius: 50%; display: inline-block;
}
.ch-dot.ch0 { background: #22d3ee; }
.ch-dot.ch1 { background: #a78bfa; }
.ch-dot.ch2 { background: #f59e0b; }
.feedback-row {
  display: flex; justify-content: space-between; padding: 3px 0;
  font-size: 13px; border-bottom: 1px solid rgba(255,255,255,.04);
}
.feedback-row:last-child { border-bottom: none; }
.fb-label { color: var(--muted, #8892a4); }
.fb-val { font-weight: 600; font-variant-numeric: tabular-nums; }
.fb-val.mono { font-family: monospace; }
.fb-val.ok  { color: #34d399; }
.fb-val.warn { color: #f59e0b; }
.fb-val.err  { color: #f87171; }
.fb-val.zero { color: #64748b; }
@media (max-width: 900px) {
  .feedback-grid { grid-template-columns: 1fr; }
}

/* === ID SNAPSHOT TABLE === */
.idsnap-table-wrap { overflow-x: auto; }
.idsnap-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.idsnap-table th {
  text-align: left; padding: 6px 10px; font-weight: 600;
  border-bottom: 2px solid rgba(255,255,255,.12); color: var(--muted, #8892a4);
  white-space: nowrap;
}
.idsnap-table td {
  padding: 5px 10px; border-bottom: 1px solid rgba(255,255,255,.05);
  white-space: nowrap;
}
.idsnap-table td.mono { font-family: monospace; }
.idsnap-table tr:hover td { background: rgba(255,255,255,.03); }
.idsnap-table .flag-on  { color: #34d399; font-weight: 600; }
.idsnap-table .flag-off { color: #475569; }
.idsnap-data { font-family: monospace; max-width: 320px; overflow: hidden; text-overflow: ellipsis; }

.fb-data-cell {
  max-width: 200px; overflow: hidden; text-overflow: ellipsis;
  font-size: 11px; word-break: break-all; line-height: 1.4;
}

/* === CAN message row expand / batch additions === */
.message-col-check,
.message-col-toggle {
  text-align: center;
  padding: 6px 4px;
}
.message-check {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent, #22d3ee);
}
.message-toggle {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: #c8d6e7;
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.message-toggle:hover {
  background: rgba(34,211,238,.12);
  border-color: rgba(34,211,238,.4);
  color: #e6fbff;
}
.message-toggle.expanded {
  background: rgba(34,211,238,.18);
  border-color: rgba(34,211,238,.55);
  color: #e6fbff;
}

.message-row-expand {
  grid-column: 1 / -1;
  background: rgba(255,255,255,.02);
  border-top: 1px dashed rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.04);
  padding: 10px 14px 14px;
}
.message-row-expand[hidden] {
  display: none;
}
.message-row-expand .signal-table-host {
  margin-top: 0;
}
.message-row-expand .signal-table {
  border-radius: 10px;
}
.message-row-expand .signal-table-body {
  max-height: 360px;
}

.can-batch-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-wrap: wrap;
}
.checkbox-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim, #93a4bf);
  cursor: pointer;
  user-select: none;
}
.checkbox-inline input {
  accent-color: var(--accent, #22d3ee);
  cursor: pointer;
}
.card-head-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}
.btn[disabled] {
  opacity: .55;
  cursor: not-allowed;
}

/* === 2026-06-30c: 报文列表与右侧操作栏并列布局调整 === */
/* 报文列表移入 can-editor-layout 后，作为左列；侧栏作为右列；不再需要顶部独立信号编辑卡。 */
.can-editor-layout > .can-table-card {
  margin-top: 0;
}
.can-sidepanel .card-body { padding-top: 14px; }
.can-frame-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.can-frame-actions .btn { flex: 1 1 auto; min-width: 120px; }
.can-frame-panel-compact .can-frame-hex { word-break: break-all; }


/* === 2026-06-30c: 报文列表压缩列宽 + 纵向滚动美化 === */
.message-list {
  /* 提高可视高度，并改用美化的纵向滚动条 */
  max-height: calc(100vh - 300px);
  min-height: 420px;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(34,211,238,.35) transparent;
}
.message-list::-webkit-scrollbar { width: 8px; }
.message-list::-webkit-scrollbar-track {
  background: transparent;
  margin: 4px 0;
}
.message-list::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(34,211,238,.45), rgba(34,211,238,.18));
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.message-list::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(34,211,238,.65), rgba(34,211,238,.28));
  background-clip: padding-box;
  border: 2px solid transparent;
}

/* 单元格统一省略号 */
.message-row .message-col,
.message-table-head .message-col {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* 紧凑列的内边距收一点，腾出空间给名称/注释 */
.message-col-index,
.message-col-channel,
.message-col-type,
.message-col-dlc,
.message-col-signal {
  padding-left: 6px;
  padding-right: 6px;
}
.message-col-check,
.message-col-toggle {
  padding-left: 4px;
  padding-right: 4px;
}
/* 注释列允许浅色降权显示 */
.message-row .message-col-comment {
  color: var(--muted);
}

/* === 2026-06-30c: 窄屏报文表降级（按位置缩为 0 宽，保持 grid 对齐） === */
/* 列序：check(1) toggle(2) #(3) name(4) id(5) channel(6) type(7) dlc(8) signal(9) node(10) comment(11) */
@media (max-width: 1280px) {
  .message-table-head,
  .message-row {
    grid-template-columns:
      36px 32px 40px
      minmax(0, 1.6fr)  /* name */
      90px              /* id */
      52px              /* channel */
      0                 /* type 隐藏 */
      46px              /* dlc */
      0                 /* signal 隐藏 */
      minmax(0, 0.9fr)  /* node */
      minmax(0, 1.8fr); /* comment */
  }
  .message-col-type,
  .message-col-signal { padding: 0; border: 0; overflow: hidden; }
}
@media (max-width: 1024px) {
  .message-table-head,
  .message-row {
    grid-template-columns:
      36px 32px 36px
      minmax(0, 1.6fr)
      86px
      0
      0
      46px
      0
      0
      minmax(0, 1.8fr);
  }
  .message-col-channel,
  .message-col-node { padding: 0; border: 0; overflow: hidden; }
}


/* 行内信号编辑展开区允许局部横向滚动（信号字段较多时），不影响外层报文表 */
.message-row-expand {
  overflow-x: auto;
}
.message-row-expand::-webkit-scrollbar { height: 6px; }
.message-row-expand::-webkit-scrollbar-thumb {
  background: rgba(34,211,238,.35);
  border-radius: 4px;
}


/* === 2026-06-30e: 工作台设置 + 最近发送 双列布局 === */
.can-top-layout {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: stretch;
}
/* 工作台卡和历史卡都放进 grid 后不需要单独的顶部外边距 */
.can-top-layout > .can-toolbar-card,
.can-top-layout > .can-history-card {
  margin-top: 0;
}
/* 历史卡固定高度，仅容纳约 3 条历史，超出滚动 */
.can-history-card { align-self: start; }
.can-history-card .card-body {
  display: flex;
  flex-direction: column;
}
.can-history-card .history-list {
  /* 约 3 条历史的高度：(每条 ~96px) * 3 + gap 10px * 2 ≈ 308px */
  max-height: 312px;
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(34,211,238,.35) transparent;
}
.can-history-card .history-list::-webkit-scrollbar { width: 8px; }
.can-history-card .history-list::-webkit-scrollbar-track { background: transparent; margin: 4px 0; }
.can-history-card .history-list::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(34,211,238,.45), rgba(34,211,238,.18));
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.can-history-card .history-list::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(34,211,238,.65), rgba(34,211,238,.28));
  background-clip: padding-box;
}

/* 窄屏堆叠 */
@media (max-width: 1100px) {
  .can-top-layout { grid-template-columns: 1fr; }
  .can-history-card .history-list { max-height: 312px; }
}


/* === 2026-07-01a: 发送节点过滤下拉 === */
.can-node-filter {
  position: relative;
  display: inline-flex;
}
.can-node-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.can-node-filter-btn.active {
  border-color: rgba(34,211,238,.65);
  color: var(--accent);
  background: rgba(34,211,238,.08);
}
.can-node-filter-caret {
  font-size: 10px;
  opacity: .75;
}
.can-node-filter-panel {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 30;
  min-width: 260px;
  max-width: 320px;
  background: #182330;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 18px 38px rgba(0,0,0,.45);
  padding: 10px;
}
.can-node-filter-panel[hidden] { display: none; }
.can-node-filter-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}
.can-node-filter-search {
  width: 100%;
  padding: 6px 8px;
  font-size: 12px;
}
.can-node-filter-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}
.can-node-filter-list {
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(34,211,238,.35) transparent;
}
.can-node-filter-list::-webkit-scrollbar { width: 8px; }
.can-node-filter-list::-webkit-scrollbar-thumb {
  background: rgba(34,211,238,.35);
  border-radius: 6px;
}
.can-node-filter-item {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text);
  transition: background .12s;
}
.can-node-filter-item:hover {
  background: rgba(255,255,255,.04);
}
.can-node-filter-item input[type="checkbox"] {
  margin: 0;
}
.can-node-filter-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
}
.can-node-filter-count {
  font-size: 11px;
  color: var(--muted);
  background: rgba(255,255,255,.05);
  border-radius: 999px;
  padding: 1px 8px;
  min-width: 26px;
  text-align: center;
}