/* 下载页：简短标题、本机平台主卡、其余平台列表、注册引导一行 */
.tt-dl [hidden] {
  display: none !important;
}

.tt-dl-wrap {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.tt-dl-hero {
  padding-block: 40px 32px;
}

.tt-dl-hero h1 {
  margin: 0 0 10px;
  font: var(--t-display-small);
  color: var(--text-1);
}

.tt-dl-summary {
  margin: 0;
  max-width: 60ch;
  font: var(--t-lead);
  color: var(--text-2);
}

.tt-dl-body {
  padding-block: 8px var(--section-y);
}

.tt-dl-banner {
  display: grid;
  gap: 2px;
  margin-bottom: 20px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: var(--warning-soft);
  color: var(--warning-text);
  font: var(--t-body);
}

.tt-dl-banner.is-error {
  background: var(--danger-soft);
  color: var(--danger-text);
}

.tt-dl-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary-text);
}

.tt-dl-icon.is-lg {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-inner);
}

.tt-dl-meta {
  margin: 2px 0 0;
  font: var(--t-caption);
  color: var(--text-3);
}

.tt-dl-meta span {
  white-space: nowrap;
}

.tt-dl-note {
  margin: 4px 0 0;
  font: var(--t-caption);
  color: var(--warning-text);
}

.tt-dl-state {
  font: var(--t-body);
  color: var(--text-3);
  white-space: nowrap;
}

.tt-dl-state.is-warn {
  color: var(--warning-text);
}

.tt-dl-checksum {
  grid-column: 1 / -1;
  font: var(--t-caption);
  color: var(--text-3);
}

.tt-dl-checksum summary {
  cursor: pointer;
}

.tt-dl-checksum p {
  margin: 6px 0 2px;
}

.tt-dl-checksum code {
  display: block;
  font-family: var(--font-mono);
  overflow-wrap: anywhere;
}

/* 本机平台主卡 */
.tt-dl-featured {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: center;
  gap: 16px 20px;
  margin-bottom: 32px;
  padding: var(--card-pad);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-e1);
}

.tt-dl-featured-label {
  margin: 0 0 4px;
  font: var(--t-label);
  color: var(--primary-text);
}

.tt-dl-featured h2 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 10px;
  margin: 0;
  font: var(--t-headline);
  color: var(--text-1);
}

.tt-dl-featured h2 small {
  font: var(--t-body);
  color: var(--text-3);
}

.tt-dl-featured .tt-dl-meta {
  margin-top: 6px;
}

.tt-dl-featured-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
}

.tt-dl-featured .tt-dl-state {
  font: var(--t-body-strong);
  color: var(--text-2);
}

@media (min-width: 720px) {
  .tt-dl-featured {
    grid-template-columns: 64px minmax(0, 1fr) auto;
  }

  .tt-dl-featured-actions {
    grid-column: auto;
    flex-direction: column;
    align-items: flex-end;
  }
}

/* 其余平台：横向卡片，平台数变化时自动铺满一行（3 个或 4 个），窄屏换行 */
.tt-dl-list-title {
  margin: 0 0 12px;
  font: var(--t-title);
  color: var(--text-1);
}

.tt-dl-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--grid-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.tt-dl-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding: var(--card-pad);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-e1);
}

.tt-dl-row h3 {
  margin: 0;
  font: var(--t-title);
  color: var(--text-1);
}

/* 状态或下载按钮固定在卡片底部，几张卡的底边对齐 */
.tt-dl-row-end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin-top: auto;
}

.tt-dl-row .tt-dl-checksum {
  align-self: stretch;
}

.tt-dl-safety {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin: 20px 0 0;
  font: var(--t-caption);
  color: var(--text-3);
}

.tt-dl-safety svg {
  flex: none;
  margin-top: 2px;
}

.tt-dl-start {
  margin: 32px 0 0;
  font: var(--t-body-secondary);
  color: var(--text-2);
}

.tt-dl-start a {
  margin-left: 4px;
  font-weight: 500;
  color: var(--primary-text);
  text-decoration: none;
}

.tt-dl-start a:hover {
  text-decoration: underline;
}