qwen-code/packages/web-shell/client/components/MessageList.module.css

.list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  min-height: 0;
}

.list::-webkit-scrollbar {
  width: 6px;
}

.list::-webkit-scrollbar-track {
  background: transparent;
}

.list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.list > * {
  width: min(
    100%,
    var(--chat-content-width, var(--chat-regular-content-width, 1000px))
  );
  margin-right: auto;
  margin-left: auto;
  transition: width 320ms ease;
}

.rowFlash {
  border-radius: 8px;
  animation: row-flash 1.6s ease-out;
}

.turnStatusRow,
.turnAnswerRow {
  max-width: 100%;
}

.turnAnswerRow {
  margin-top: 10px;
}

.turnContentRow {
  min-width: 0;
}

.turnContentClip {
  display: grid;
  grid-template-rows: 1fr;
  min-height: 0;
  overflow: hidden;
  transition: grid-template-rows 180ms ease;
}

.turnContentCollapsed {
  grid-template-rows: 0fr;
}

.turnContentInner {
  min-height: 0;
  overflow: hidden;
}

.sessionTimelineLayer {
  position: sticky;
  top: 50%;
  z-index: 4;
  width: 0 !important;
  height: 0;
  margin-right: 0 !important;
  margin-left: 0 !important;
  transition: none;
  transform: translateX(-22px);
  pointer-events: none;
}

.sessionTimelinePanel {
  position: absolute;
  top: 0;
  left: 22px;
  width: 86px;
  overflow: visible;
  color: var(--muted-foreground);
  pointer-events: auto;
  transform: translateY(-50%);
}

.sessionTimelineList {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sessionTimelineItem {
  position: relative;
  height: 8px;
}

.sessionTimelineButton {
  position: relative;
  top: -4px;
  display: flex;
  align-items: center;
  width: 58px;
  height: 16px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.sessionTimelineButton:focus-visible {
  outline: none;
}

.sessionTimelineButton:focus-visible .sessionTimelineTick {
  box-shadow:
    0 0 0 2px var(--background),
    0 0 0 4px color-mix(in srgb, var(--foreground) 82%, transparent);
}

.sessionTimelineTick {
  display: block;
  width: 10px;
  height: 4px;
  border-radius: 1px;
  background: color-mix(in srgb, var(--muted-foreground) 30%, transparent);
  transform-origin: left center;
  transition:
    background-color 160ms cubic-bezier(0.25, 1, 0.5, 1),
    transform 180ms cubic-bezier(0.25, 1, 0.5, 1);
}

.sessionTimelineButton:hover .sessionTimelineTick,
.sessionTimelineButton:focus-visible .sessionTimelineTick {
  background: color-mix(in srgb, var(--foreground) 94%, transparent);
  transform: scaleX(3.8);
}

.sessionTimelineItem:has(.sessionTimelineButton:hover)
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(.sessionTimelineButton:focus-visible)
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(+ .sessionTimelineItem .sessionTimelineButton:hover)
  .sessionTimelineTick,
.sessionTimelineItem:has(
    + .sessionTimelineItem .sessionTimelineButton:focus-visible
  )
  .sessionTimelineTick {
  transform: scaleX(3);
}

.sessionTimelineItem:has(.sessionTimelineButton:hover)
  + .sessionTimelineItem
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(.sessionTimelineButton:focus-visible)
  + .sessionTimelineItem
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(
    + .sessionTimelineItem + .sessionTimelineItem .sessionTimelineButton:hover
  )
  .sessionTimelineTick,
.sessionTimelineItem:has(
    + .sessionTimelineItem
      + .sessionTimelineItem
      .sessionTimelineButton:focus-visible
  )
  .sessionTimelineTick {
  transform: scaleX(2.2);
}

.sessionTimelineItem:has(.sessionTimelineButton:hover)
  + .sessionTimelineItem
  + .sessionTimelineItem
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(.sessionTimelineButton:focus-visible)
  + .sessionTimelineItem
  + .sessionTimelineItem
  + .sessionTimelineItem
  .sessionTimelineTick,
.sessionTimelineItem:has(
    + .sessionTimelineItem
      + .sessionTimelineItem
      + .sessionTimelineItem
      .sessionTimelineButton:hover
  )
  .sessionTimelineTick,
.sessionTimelineItem:has(
    + .sessionTimelineItem
      + .sessionTimelineItem
      + .sessionTimelineItem
      .sessionTimelineButton:focus-visible
  )
  .sessionTimelineTick {
  transform: scaleX(1.5);
}

.sessionTimelineButtonInRange .sessionTimelineTick {
  background: color-mix(in srgb, var(--foreground) 50%, transparent);
}

.sessionTimelineButtonCurrent .sessionTimelineTick {
  background: color-mix(in srgb, var(--foreground) 86%, transparent);
}

.sessionTimelineButtonInRange:hover .sessionTimelineTick,
.sessionTimelineButtonInRange:focus-visible .sessionTimelineTick,
.sessionTimelineButtonCurrent:hover .sessionTimelineTick,
.sessionTimelineButtonCurrent:focus-visible .sessionTimelineTick {
  background: color-mix(in srgb, var(--foreground) 94%, transparent);
}

.sessionTimelineDetails {
  position: absolute;
  top: 50%;
  left: 56px;
  z-index: 1;
  box-sizing: border-box;
  display: grid;
  gap: 6px;
  width: min(350px, calc(100vw - 150px));
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--border) 72%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--background) 96%, white);
  box-shadow: 0 10px 28px color-mix(in srgb, black 10%, transparent);
  opacity: 0;
  pointer-events: none;
  text-align: left;
  transform: translate3d(-8px, -50%, 0) scale(0.985);
  transform-origin: left center;
  transition:
    opacity 160ms cubic-bezier(0.25, 1, 0.5, 1),
    transform 180ms cubic-bezier(0.25, 1, 0.5, 1);
}

.sessionTimelineButton:hover .sessionTimelineDetails,
.sessionTimelineButton:focus-visible .sessionTimelineDetails {
  opacity: 1;
  transform: translate3d(0, -50%, 0) scale(1);
}

.sessionTimelineDetails::before {
  content: attr(data-title);
  overflow: hidden;
  color: var(--foreground);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sessionTimelineDetails::after {
  content: attr(data-detail);
  display: -webkit-box;
  overflow: hidden;
  color: color-mix(in srgb, var(--muted-foreground) 86%, transparent);
  font-size: 13px;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

@media (prefers-reduced-motion: reduce) {
  .sessionTimelineTick,
  .sessionTimelineDetails {
    transition-duration: 0.01ms;
  }
}

@media (max-width: 720px) {
  .sessionTimelinePanel {
    display: none;
  }
}

@keyframes row-flash {
  0%,
  30% {
    background: color-mix(in srgb, var(--agent-blue-500) 16%, transparent);
  }
  100% {
    background: transparent;
  }
}