.page-products {
  --pd-r: 3px;
  --pd-line: 1px solid var(--hair);
  display: block;
  padding-bottom: 64px;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  padding-top: 20px;
  font-size: 13px;
}
.page-products .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--mute);
}
.page-products .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-products .breadcrumbs li + li::before {
  content: "/";
  color: var(--dim);
}
.page-products .breadcrumbs a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-products .breadcrumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.page-products .breadcrumbs [aria-current="page"] {
  color: var(--ice);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding-top: 34px;
}
.page-products .pd-hero-grid {
  display: grid;
  gap: 30px;
}
.page-products .pd-display {
  margin: 12px 0 0;
  font-size: clamp(33px, 8.6vw, 74px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ice);
}
.page-products .pd-lede {
  margin-top: 18px;
  max-width: 34em;
  color: var(--body);
}
.page-products .pd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-products .pd-hero-figure .figure-frame {
  border: var(--pd-line);
  background: var(--panel);
}

/* 首屏数据带 */
.page-products .pd-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 34px 0 0;
  background: var(--hair);
  border: var(--pd-line);
}
.page-products .pd-fact {
  background: var(--panel);
  padding: 15px 16px;
  transition: background .18s ease;
}
.page-products .pd-fact:hover {
  background: var(--raised);
}
.page-products .pd-fact dt {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}
.page-products .pd-fact dd {
  margin: 9px 0 0;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--ice);
  letter-spacing: -0.01em;
}
.page-products .pd-fact dd em {
  font-family: var(--sans);
  font-style: normal;
  font-size: 12px;
  font-weight: 400;
  color: var(--mute);
  margin-left: 5px;
}

/* ---------- 章节骨架 ---------- */
.page-products .chapter {
  margin-top: 62px;
}
.page-products .chapter-head {
  padding-top: 20px;
  border-top: var(--pd-line);
}
.page-products .chapter-title {
  color: var(--ice);
}
.page-products .chapter-deck {
  max-width: 38em;
}
.page-products .pd-sub {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ice);
}

/* ---------- 01 横向滚动卡片序列 ---------- */
.page-products .pd-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(238px, 76vw);
  gap: 14px;
  margin-top: 26px;
  padding: 2px 2px 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-products .pd-rail::-webkit-scrollbar {
  height: 4px;
}
.page-products .pd-rail::-webkit-scrollbar-track {
  background: var(--hair);
}
.page-products .pd-rail::-webkit-scrollbar-thumb {
  background: var(--lime);
}
.page-products .pd-rail:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 4px;
}
.page-products .pd-chip {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 196px;
  padding: 20px 18px 20px;
  background: var(--panel);
  border: var(--pd-line);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .35);
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
.page-products .pd-chip:hover {
  border-color: var(--lime);
  transform: translateY(-2px);
  background: var(--raised);
}
.page-products .pd-chip-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--lime);
}
.page-products .pd-chip h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  color: var(--ice);
  letter-spacing: -0.01em;
}
.page-products .pd-chip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
}
.page-products .pd-chip .tag {
  margin-top: auto;
  align-self: flex-start;
}
.page-products .pd-hint {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--dim);
}

/* ---------- 02 入口层级 ---------- */
.page-products .pd-levels-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}
.page-products .pd-levels-figure .figure-frame {
  border: var(--pd-line);
  background: var(--panel);
}
.page-products .pd-tree,
.page-products .pd-tree ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .pd-tree ul {
  margin-left: 12px;
  padding-left: 18px;
  border-left: 1px solid var(--hair);
}
.page-products .pd-tree li {
  position: relative;
  padding: 9px 0;
}
.page-products .pd-tree ul > li::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 22px;
  width: 13px;
  height: 1px;
  background: var(--hair);
}
.page-products .pd-tree-k {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ice);
}
.page-products .pd-tree-k.is-accent {
  color: var(--lime);
}
.page-products .pd-tree-d {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mute);
}

/* 三段标签切换 */
.page-products .pd-tabs {
  position: relative;
  margin-top: 32px;
}
.page-products .pd-tab-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}
.page-products .pd-tab-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--hair);
  border: var(--pd-line);
}
.page-products .pd-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 6px;
  font-size: 12.5px;
  font-family: var(--mono);
  letter-spacing: .1em;
  color: var(--mute);
  background: var(--panel);
  cursor: pointer;
  text-align: center;
  transition: background .18s ease, color .18s ease;
}
.page-products .pd-tab:hover {
  background: var(--raised);
  color: var(--ice);
}
.page-products #pd-lv1:checked ~ .pd-tab-bar .pd-tab[for="pd-lv1"],
.page-products #pd-lv2:checked ~ .pd-tab-bar .pd-tab[for="pd-lv2"],
.page-products #pd-lv3:checked ~ .pd-tab-bar .pd-tab[for="pd-lv3"] {
  background: var(--lime);
  color: #06170A;
  font-weight: 700;
}
.page-products .pd-tab-input:focus-visible ~ .pd-tab-bar {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-products .pd-tab-panels {
  margin-top: 16px;
}
.page-products .pd-panel {
  display: none;
  padding: 20px 18px;
  background: var(--panel);
  border: var(--pd-line);
}
.page-products #pd-lv1:checked ~ .pd-tab-panels .pd-panel[data-panel="1"],
.page-products #pd-lv2:checked ~ .pd-tab-panels .pd-panel[data-panel="2"],
.page-products #pd-lv3:checked ~ .pd-tab-panels .pd-panel[data-panel="3"] {
  display: block;
  animation: pd-fade .2s ease both;
}
@keyframes pd-fade {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}
.page-products .pd-panel-kicker {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

/* 步骤列表 */
.page-products .pd-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .pd-steps li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body);
}
.page-products .pd-steps li + li {
  margin-top: 12px;
}
.page-products .pd-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 1px;
  background: var(--lime);
}
.page-products .pd-steps--num {
  counter-reset: pdstep;
}
.page-products .pd-steps--num li {
  padding-left: 34px;
}
.page-products .pd-steps--num li::before {
  counter-increment: pdstep;
  content: counter(pdstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: auto;
  height: auto;
  background: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--lime);
  letter-spacing: .04em;
}

/* 版本展开 */
.page-products .pd-versions {
  margin-top: 30px;
  border-top: var(--pd-line);
}
.page-products .pd-version {
  border-bottom: var(--pd-line);
}
.page-products .pd-version summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 14px 0;
  list-style: none;
  cursor: pointer;
  transition: color .18s ease;
}
.page-products .pd-version summary::-webkit-details-marker {
  display: none;
}
.page-products .pd-version summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--mute);
  transition: color .18s ease;
}
.page-products .pd-version[open] summary::after {
  content: "\2212";
  color: var(--lime);
}
.page-products .pd-version summary:hover .pd-vtitle {
  color: var(--lime);
}
.page-products .pd-vtag {
  flex: none;
  padding: 4px 9px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mute);
  border: var(--pd-line);
  white-space: nowrap;
}
.page-products .pd-vtag.is-current {
  color: var(--lime);
  border-color: var(--lime);
  background: rgba(166, 255, 61, .08);
}
.page-products .pd-vtitle {
  font-size: 15px;
  font-weight: 700;
  color: var(--ice);
  transition: color .18s ease;
}
.page-products .pd-version-body {
  padding: 0 0 20px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body);
}
.page-products .pd-version-body ul {
  margin: 0;
  padding-left: 18px;
}
.page-products .pd-version-body li + li {
  margin-top: 8px;
}
.page-products .pd-version-body li::marker {
  color: var(--lime);
}

/* ---------- 03 数据刷新 ---------- */
.page-products .pd-data {
  margin-top: 26px;
  border: var(--pd-line);
}
.page-products .pd-data .data-cell {
  background: var(--panel);
  border-bottom: var(--pd-line);
  transition: background .18s ease;
}
.page-products .pd-data .data-cell:hover {
  background: var(--raised);
}
.page-products .pd-refresh-grid {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}
.page-products .pd-refresh-figure .figure-frame {
  border: var(--pd-line);
  background: var(--panel);
}
.page-products .pd-refresh-copy .pd-sub:not(:first-child) {
  margin-top: 22px;
}
.page-products .pd-refresh-copy p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body);
  max-width: 36em;
}

/* ---------- 04 小屏适配 ---------- */
.page-products .pd-small-grid {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}
.page-products .pd-small-figure .figure-frame {
  border: var(--pd-line);
  background: var(--panel);
}
.page-products .pd-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 24px;
  padding: 16px;
  background: var(--panel);
  border: var(--pd-line);
  border-left: 2px solid var(--warn);
}
.page-products .pd-note .tag {
  flex: none;
  margin-top: 2px;
}
.page-products .pd-note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--body);
}

/* ---------- 05 资料下载区 ---------- */
.page-products .pd-download-figure {
  margin-top: 26px;
}
.page-products .pd-download-figure .figure-frame {
  border: var(--pd-line);
  background: var(--panel);
}
.page-products .pd-paths {
  margin-top: 30px;
}
.page-products .pd-path {
  padding: 20px 18px;
  background: var(--panel);
  border: var(--pd-line);
  transition: border-color .18s ease, transform .18s ease;
}
.page-products .pd-path:hover {
  border-color: var(--lime);
  transform: translateY(-2px);
}
.page-products .pd-path-idx {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--lime);
}
.page-products .pd-path p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body);
}
.page-products .pd-seasons {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--pd-line);
}
.page-products .pd-seasons li {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--pd-line);
}
.page-products .pd-season-label {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ice);
  letter-spacing: .02em;
}
.page-products .pd-season-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 页尾 ---------- */
.page-products .pd-tail {
  margin-top: 68px;
  padding-top: 26px;
  border-top: var(--pd-line);
}
.page-products .pd-tail-title {
  margin: 0;
}
.page-products .pd-tail-lede {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body);
}
.page-products .pd-tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pd-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pd-rail {
    grid-auto-columns: minmax(264px, 44vw);
  }
  .page-products .pd-seasons li {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 0 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-products {
    padding-bottom: 96px;
  }
  .page-products .pd-hero {
    padding-top: 52px;
  }
  .page-products .pd-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 52px;
    align-items: center;
  }
  .page-products .pd-hero-figure {
    margin-top: 18px;
  }
  .page-products .chapter {
    margin-top: 104px;
  }
  .page-products .pd-levels-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 44px;
    align-items: start;
  }
  .page-products .pd-rail {
    grid-auto-columns: minmax(276px, 22vw);
  }
  .page-products .pd-refresh-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: center;
  }
  .page-products .pd-small-grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    gap: 48px;
    align-items: start;
  }
  .page-products .pd-small-figure {
    position: sticky;
    top: 24px;
  }
  .page-products .pd-versions {
    margin-top: 40px;
  }
}

@media (min-width: 1180px) {
  .page-products .pd-rail {
    grid-auto-columns: minmax(290px, 1fr);
    grid-auto-flow: column;
    grid-template-columns: none;
  }
}