/* Download cards are primary; the two rails share a quiet, compact rhythm. */
.download-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 240px;
  column-gap: 48px;
  width: min(1776px, calc(100% - 96px));
  align-items: start;
}
.download-layout > .download-page-hero,
.download-layout > .download-platform-grid,
.download-layout > .download-release {
  grid-column: 2;
  min-width: 0;
}
.download-tutorials,
.download-help {
  grid-row: 2 / span 2;
  min-width: 0;
  margin-top: 54px;
  padding-top: 4px;
}
.download-tutorials { grid-column: 1; }
.download-help { grid-column: 3; }
.download-tutorials h2,
.download-help h2 {
  margin: 0 0 16px;
  color: var(--c-ink-soft);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}
.download-tutorials-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.download-tutorials-list li + li,
.download-help-qq,
.download-help-wechat,
.download-help-en-only { border-top: 1px solid var(--c-line); }
.tutorial-video {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  color: var(--c-ink-soft);
}
.tutorial-video-cover {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: 5px;
  background: var(--c-surface);
}
.tutorial-video-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.tutorial-video-copy { min-width: 0; }
.tutorial-video-title {
  display: block;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.65;
  overflow-wrap: anywhere;
}
.tutorial-video-duration {
  display: block;
  margin-top: 6px;
  color: var(--c-muted);
  font-family: var(--font-number);
  font-size: 10px;
  line-height: 1.5;
}
.download-tutorials-channel,
.download-help-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  color: var(--c-ink-soft);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
}
.download-tutorials-channel {
  justify-content: flex-start;
  width: fit-content;
  margin-top: 8px;
  color: var(--c-body);
  font-size: 12px;
}
.download-help-links > .download-help-link { min-height: 86px; }
.download-help-link > [aria-hidden] {
  color: var(--c-muted);
  font-size: 12px;
}
.download-help-qq,
.download-help-wechat { padding-top: 12px; }
.download-help-wechat { margin-top: 24px; }
.download-help-label {
  display: flex;
  align-items: center;
  min-height: 44px;
  margin: 0;
  color: var(--c-ink-soft);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
}
.download-help-number {
  margin: 0;
  color: var(--c-muted);
  font-family: var(--font-number);
  font-size: 11px;
  line-height: 1.6;
}
.download-help-qr { margin-top: 20px; }
.download-help-qr img {
  display: block;
  width: 128px;
  height: 128px;
  margin-top: 8px;
  border: 6px solid #fff;
  border-radius: 6px;
  object-fit: cover;
}
.download-help-en-only,
html[lang="en"] .download-help-cn-only { display: none; }
html[lang="en"] .download-help-en-only { display: flex; }
.tutorial-video:hover,
.download-tutorials-channel:hover,
.download-help-link:hover { color: var(--c-primary); }
.tutorial-video:focus-visible,
.download-tutorials-channel:focus-visible,
.download-help-link:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 4px;
  border-radius: 3px;
}
@media (max-width: 1439px) {
  .download-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
    width: min(1200px, calc(100% - 56px));
  }
  .download-layout > .download-page-hero,
  .download-layout > .download-platform-grid,
  .download-layout > .download-release { grid-column: 1 / -1; }
  .download-tutorials,
  .download-help {
    grid-row: 3;
    margin-top: 40px;
    padding: 24px 0 16px;
    border-top: 1px solid var(--c-line);
  }
  .download-help { grid-column: 2; }
  .download-layout > .download-release { grid-row: 4; }
}
@media (max-width: 680px) {
  .download-layout {
    display: block;
    width: calc(100% - 40px);
  }
  .download-help { margin-top: 16px; }
}