/* ============================================================
   官网子页：下载、定价、模板、反馈
   公共部分（颜色、玻璃、顶栏、页脚、按钮、表单控件）在 site.css。
   ============================================================ */

main { padding-bottom: clamp(88px, 11vw, 140px); }
.section { padding-top: clamp(80px, 10vw, 128px); }
.section-head { margin-bottom: 40px; }
.mini-label { margin-bottom: 10px; font-size: 12.5px; letter-spacing: .2em; color: var(--txt3); }
.link { cursor: pointer; }
code {
  padding: 1px 6px;
  border-radius: 6px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: .88em;
  background: var(--well);
  border: 1px solid var(--edge);
}

/* ============================================================
   下载
   ============================================================ */
.dl-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  gap: clamp(40px, 6vw, 96px);
  align-items: end;
}
.dl-hero .btn small { color: color-mix(in srgb, var(--on-accent) 65%, transparent); }
.dl-hero .btn-glass small { color: var(--txt3); }
.dl-note { max-width: 34em; margin-top: 22px; padding: 12px 16px; font-size: 14.5px; color: var(--txt2); }

.dl-status { padding: 28px 28px 30px; border-radius: var(--r-xl); }
.dl-version { display: flex; align-items: center; gap: 10px; }
.dl-version b { font-size: 34px; font-weight: 600; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.dl-date { margin-top: 2px; font-size: 13.5px; color: var(--txt3); }
.dl-summary {
  display: -webkit-box;
  margin: 16px 0 18px;
  font-size: 14.5px;
  color: var(--txt2);
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.platforms { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.plat { display: flex; flex-direction: column; align-items: flex-start; padding: 28px 26px 26px; }
.plat-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 22px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
}
.plat-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linejoin: round; }
.plat h3 { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 600; font-size: 22px; letter-spacing: .04em; }
.plat h3 .tag { font-family: var(--sans); margin: 0; }
.plat-meta { margin: 6px 0 22px; font-size: 14px; color: var(--txt3); flex: 1; }
.plat-planned { background: transparent; box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
.plat-planned::before { opacity: .6; }
.plat-planned .plat-icon { background: var(--well); color: var(--txt3); }
.plat-planned .plat-meta { margin-bottom: 0; }

.dl-support { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.support { padding: 26px 28px 28px; }
.support h3 { font-family: var(--serif); font-weight: 600; font-size: 19px; letter-spacing: .06em; }
.support p { margin-top: 8px; color: var(--txt2); font-size: 15px; }

.changelog { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 28px; align-items: start; }
.release { padding: 32px 34px 34px; border-radius: var(--r-xl); }
.release-head { display: flex; align-items: center; gap: 12px; }
.release-head b { font-size: 26px; font-weight: 600; font-variant-numeric: tabular-nums; }
.release-head time { margin-left: auto; font-size: 13.5px; color: var(--txt3); }
.release-summary:empty { display: none; }
.release-summary { margin-top: 14px; color: var(--txt2); }
.rel-group { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--sep); }
.rel-group h3 { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; letter-spacing: .1em; }
.rel-group .count {
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--txt3);
  background: var(--well);
}
.rel-group ul { display: grid; gap: 10px; margin-top: 14px; }
.rel-group li { position: relative; padding-left: 18px; font-size: 14.5px; line-height: 1.75; color: var(--txt2); }
.rel-group li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .8;
}
.more {
  margin-top: 14px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--accent);
  background: var(--accent-soft);
  transition: background .2s;
}
.more:hover { background: color-mix(in srgb, var(--accent) 24%, transparent); }

.history ol { display: grid; gap: 8px; }
.hist {
  display: block;
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--edge);
  background: var(--glass);
  text-align: left;
  transition: background .2s, border-color .2s;
}
.hist:hover { background: var(--glass-lite); }
.hist[aria-expanded="true"] { border-color: var(--accent-line); }
.hist-top { display: flex; justify-content: space-between; align-items: baseline; }
.hist-top b { font-weight: 600; font-variant-numeric: tabular-nums; }
.hist-top time { font-size: 12.5px; color: var(--txt3); }
.hist-note {
  display: -webkit-box;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--txt2);
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hist[aria-expanded="true"] .hist-note { display: block; }

/* ============================================================
   反馈
   ============================================================ */
.fb-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 48px 0 20px;
}
.fb-toolbar .seg { margin: 0; }
.fb-search { flex: 1 1 240px; }
.fb-toolbar .select { width: auto; min-width: 150px; }
.fb-toolbar .btn { height: 46px; }

.fb-list { display: grid; gap: 12px; }
.fb-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 22px 18px 18px;
  border-radius: var(--r-lg);
}
.vote {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  height: 72px;
  border-radius: 14px;
  border: 1px solid var(--edge);
  background: var(--well);
  font-size: 12px;
  color: var(--txt3);
  transition: border-color .2s, background .2s, color .2s, transform .2s var(--ease);
}
.vote strong { font-size: 20px; font-weight: 600; color: var(--txt); font-variant-numeric: tabular-nums; }
.vote:not(:disabled):hover { border-color: var(--accent-line); color: var(--accent); transform: translateY(-1px); }
.vote.is-voted { border-color: var(--accent-line); background: var(--accent-soft); color: var(--accent); }
.vote.is-voted strong { color: var(--accent); }
.vote:disabled { cursor: default; }
.fb-row-head { display: flex; align-items: flex-start; gap: 12px; }
.fb-row h2 { flex: 1; font-size: 16.5px; font-weight: 600; line-height: 1.5; }
.fb-row p { margin-top: 4px; font-size: 14.5px; color: var(--txt2); white-space: pre-line; }
.fb-meta { margin-top: 10px; font-size: 12.5px; color: var(--txt4); }
.status {
  flex: none;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--txt3);
  border: 1px solid var(--edge);
}
.status.is-active { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }

.fb-empty { padding: 48px 24px; border-radius: var(--r-lg); text-align: center; }
.fb-empty strong { display: block; font-family: var(--serif); font-size: 20px; font-weight: 600; letter-spacing: .04em; }
.fb-empty p { margin-top: 8px; color: var(--txt3); }
.fb-skeleton { height: 108px; border-radius: var(--r-lg); background: linear-gradient(100deg, var(--well) 30%, var(--glass-lite) 50%, var(--well) 70%) 0 0 / 300% 100%; animation: shimmer 1.4s linear infinite; }
@keyframes shimmer { to { background-position: -150% 0; } }

.fb-login {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 40px 0 0;
  padding: 12px 18px;
  font-size: 14.5px;
  color: var(--txt2);
}
.fb-login svg { width: 16px; height: 16px; flex: none; fill: none; stroke: var(--accent); stroke-width: 1.7; }
.fb-login .link { margin-left: auto; }
.fb-forms { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; }
.fb-form { display: flex; flex-direction: column; gap: 18px; padding: 30px 30px 28px; border-radius: var(--r-xl); }
.fb-form-head { display: flex; gap: 14px; align-items: flex-start; }
.fb-form-head .plat-icon { width: 42px; height: 42px; margin: 0; flex: none; }
.fb-form-head .plat-icon svg { width: 20px; height: 20px; stroke-linecap: round; }
.fb-form-head h2 { font-family: var(--serif); font-weight: 600; font-size: 21px; letter-spacing: .06em; }
.fb-form-head p { margin-top: 2px; font-size: 14px; color: var(--txt3); }
.examples { display: flex; flex-wrap: wrap; gap: 6px; }
.examples button {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--txt2);
  background: var(--well);
  border: 1px solid var(--edge);
  transition: border-color .2s, color .2s;
}
.examples button:not(:disabled):hover { color: var(--accent); border-color: var(--accent-line); }
.examples button:disabled { opacity: .55; cursor: not-allowed; }
.field-wrap { position: relative; }
.counter { position: absolute; right: 12px; bottom: 10px; font-size: 12px; color: var(--txt4); pointer-events: none; font-variant-numeric: tabular-nums; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fb-form-foot { display: flex; align-items: center; gap: 14px; margin-top: 4px; }
.fb-form-foot small { font-size: 12.5px; color: var(--txt4); }
.fb-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 22px; font-size: 14px; color: var(--txt3); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 960px) {
  .dl-hero, .changelog, .fb-forms { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .dl-support, .field-row { grid-template-columns: 1fr; }
  .release { padding: 24px 20px 26px; }
  .fb-row { grid-template-columns: 56px minmax(0, 1fr); gap: 14px; padding: 16px; }
  .vote { height: 60px; }
  .fb-form { padding: 24px 20px; }
  .fb-toolbar .select, .fb-toolbar .btn { flex: 1 1 auto; }
}
@media (prefers-reduced-motion: reduce) {
  .fb-skeleton { animation: none; }
}