:root {
  color-scheme: dark;
  --updates-bg: #111216;
  --updates-panel: #191b22;
  --updates-line: #30333d;
  --updates-text: #f6f7fb;
  --updates-muted: #a5a8b4;
  --updates-subtle: #777b89;
  --updates-accent: #9d91ff;
  --updates-accent-strong: #7366ed;
  --updates-success: #9be0a7;
}

* { box-sizing: border-box; }
html { background: var(--updates-bg); }
body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 80% -10%, rgba(99, 89, 233, .18), transparent 30rem),
    var(--updates-bg);
  color: var(--updates-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
a { color: var(--updates-accent); text-decoration: none; }
a:hover { color: #c0b9ff; text-decoration: underline; }

.updates-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0 86px;
}
.updates-eyebrow {
  margin: 0 0 11px;
  color: var(--updates-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3 { line-height: 1.25; }
h1 { max-width: 720px; margin: 0; font-size: clamp(32px, 5vw, 56px); letter-spacing: -.035em; }
h2 { margin: 0; font-size: 22px; }
h3 { margin: 0; font-size: 18px; }
.updates-lead {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--updates-muted);
  font-size: 17px;
}
.updates-section { margin-top: 52px; }
.updates-section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.updates-section-heading p,
.release-meta,
.release-copy,
.archive-copy { color: var(--updates-muted); }
.updates-section-heading p { margin: 0; font-size: 13px; }
.release-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.release-card,
.archive-card,
.detail-card {
  display: block;
  border: 1px solid var(--updates-line);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(32, 34, 43, .96), rgba(25, 27, 34, .96));
  box-shadow: 0 12px 34px rgba(0, 0, 0, .15);
}
.release-card {
  padding: 24px;
  transition: border-color .18s ease, transform .18s ease;
}
.release-card:hover {
  border-color: var(--updates-accent-strong);
  text-decoration: none;
  transform: translateY(-2px);
}
.release-card-top,
.release-actions,
.archive-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.release-version { color: var(--updates-text); font-size: 25px; font-weight: 750; }
.release-meta { margin-top: 6px; font-size: 13px; }
.release-copy { margin: 16px 0 0; font-size: 14px; }
.release-tag,
.archive-status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(155, 224, 167, .12);
  color: var(--updates-success);
  font-size: 12px;
  white-space: nowrap;
}
.release-actions { justify-content: flex-start; margin-top: 21px; flex-wrap: wrap; }
.button-link,
.download-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 13px;
  border-radius: 9px;
  font-size: 13px;
}
.button-link { background: var(--updates-accent-strong); color: #fff; }
.button-link:hover { background: #8579f7; color: #fff; text-decoration: none; }
.download-link {
  border: 1px solid rgba(157, 145, 255, .46);
  color: #d5d0ff;
}
.download-link:hover { background: rgba(115, 102, 237, .16); text-decoration: none; }
.notice {
  margin-top: 28px;
  padding: 15px 17px;
  border: 1px solid rgba(157, 145, 255, .25);
  border-left: 3px solid var(--updates-accent-strong);
  border-radius: 12px;
  background: rgba(32, 34, 43, .7);
  color: var(--updates-muted);
  font-size: 14px;
}
.archive-list { display: grid; gap: 13px; }
.archive-card { padding: 20px 22px; }
.archive-card-top { align-items: flex-start; }
.archive-version { font-weight: 700; }
.archive-copy { margin: 7px 0 0; font-size: 14px; }
.archive-date { color: var(--updates-subtle); font-size: 13px; white-space: nowrap; }
.archive-card .download-link,
.archive-card .download-unavailable { margin-top: 14px; }
.download-unavailable { color: var(--updates-subtle); font-size: 13px; }
.detail-card { padding: 28px; }
.detail-card h2 { margin-top: 30px; }
.detail-card h2:first-child { margin-top: 0; }
.detail-card ul { margin: 12px 0 0; padding-left: 21px; color: var(--updates-muted); }
.detail-card li + li { margin-top: 7px; }
.detail-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 24px 0 28px; }
.back-link { display: inline-flex; margin-bottom: 27px; color: var(--updates-muted); font-size: 14px; }
.back-link:hover { color: var(--updates-text); }
@media (max-width: 760px) {
  .updates-shell { padding-top: 46px; }
  .release-grid { grid-template-columns: 1fr; }
}
@media (max-width: 450px) {
  .updates-shell { width: min(100% - 28px, 1120px); }
  h1 { font-size: 36px; }
  .updates-lead { font-size: 15px; }
  .detail-card,
  .release-card,
  .archive-card { padding: 20px; }
  .archive-card-top { display: block; }
  .archive-date { display: block; margin-top: 4px; }
}