.page-products {
  --pd-rail-line: linear-gradient(180deg, var(--yb-teal) 0%, rgba(14, 158, 143, 0.45) 60%, rgba(239, 135, 34, 0.55) 100%);
  background: var(--yb-surface);
  padding-bottom: var(--yb-gap-4);
}

/* ---------- 面包屑 ---------- */
.page-products .pd-crumb {
  padding-top: var(--yb-gap-1);
  font-size: 14px;
  color: var(--yb-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-products .pd-crumb a {
  color: var(--yb-blue);
  text-decoration: none;
}
.page-products .pd-crumb a:hover { text-decoration: underline; }
.page-products .pd-crumb span[aria-current] {
  color: var(--yb-ink);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding: var(--yb-gap-2) 0 var(--yb-gap-3);
}
.page-products .pd-hero__grid {
  display: grid;
  gap: var(--yb-gap-2);
}
.page-products .pd-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yb-deep);
}
.page-products .pd-hero__facts {
  list-style: none;
  margin: var(--yb-gap-2) 0 0;
  padding: var(--yb-gap-2) 0 0;
  border-top: 1px solid var(--yb-line);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--yb-gap-1);
}
.page-products .pd-num {
  display: block;
  font-size: clamp(30px, 6vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--yb-blue);
  font-variant-numeric: tabular-nums;
}
.page-products .pd-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--yb-muted);
}
.page-products .pd-hero__panel {
  padding: var(--yb-gap-1);
  border-radius: var(--yb-r-lg);
  display: grid;
  gap: 16px;
  align-content: center;
}
.page-products .pd-hero__figure {
  display: block;
  width: 100%;
  max-width: 380px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--yb-r-sm);
  object-fit: contain;
}
.page-products .pd-hero__caption {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-muted);
  text-align: center;
}

/* ---------- 通用小标题行 ---------- */
.page-products .pd-head {
  display: grid;
  gap: 16px;
  margin-bottom: var(--yb-gap-2);
}
.page-products .pd-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
  max-width: 46ch;
}
.page-products .pd-link {
  align-self: flex-start;
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--yb-teal);
  text-decoration: none;
  border-bottom: 1px dashed rgba(14, 158, 143, 0.5);
  padding-bottom: 2px;
}
.page-products .pd-link:hover {
  color: var(--yb-blue);
  border-bottom-color: var(--yb-blue);
}

/* ---------- 下载卡片 ---------- */
.page-products .pd-downloads {
  background: var(--yb-white);
  border-radius: var(--yb-r-lg);
  padding: var(--yb-gap-3) 0;
}
.page-products .pd-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--yb-gap-2);
}
.page-products .pd-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--yb-gap-1);
}
.page-products .pd-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: var(--yb-gap-1);
  background: var(--yb-white);
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-r-lg);
  box-shadow: 0 2px 10px rgba(27, 75, 143, 0.06);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}
.page-products .pd-card:hover {
  border-color: var(--yb-bright);
  box-shadow: 0 10px 28px rgba(27, 75, 143, 0.12);
}
.page-products .pd-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.page-products .pd-card__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--yb-deep);
}
.page-products .pd-spec {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--yb-r-sm);
  background: var(--yb-ice);
  display: grid;
  gap: 8px;
}
.page-products .pd-spec > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: baseline;
}
.page-products .pd-spec dt {
  font-size: 13px;
  color: var(--yb-muted);
  white-space: nowrap;
}
.page-products .pd-spec dd {
  margin: 0;
  font-size: 14px;
  color: var(--yb-ink);
  text-align: right;
}
.page-products .pd-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
  flex: 1;
}

/* ---------- 三步适配 ---------- */
.page-products .pd-steps__figure {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--yb-r-lg);
  margin-bottom: var(--yb-gap-3);
  object-fit: cover;
}
.page-products .pd-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--yb-gap-2);
}
.page-products .pd-step {
  position: relative;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-left: 18px;
}
.page-products .pd-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: -32px;
  width: 3px;
  border-radius: 3px;
  background: var(--pd-rail-line);
}
.page-products .pd-step:last-child::before { bottom: 20px; }
.page-products .pd-step__num { line-height: 0.9; }
.page-products .yb-step-num {
  display: block;
  font-size: 54px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--yb-teal);
  font-variant-numeric: tabular-nums;
}
.page-products .yb-step-num--warm { color: var(--yb-orange); }
.page-products .pd-step__time {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--yb-muted);
  letter-spacing: 0.04em;
}
.page-products .pd-step__body h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--yb-deep);
}
.page-products .pd-step__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--yb-ink);
  max-width: 60ch;
}

/* ---------- 能力对照 ---------- */
.page-products .pd-matrix__figure {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--yb-r-lg);
  margin-bottom: var(--yb-gap-2);
  object-fit: cover;
}
.page-products .pd-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-r-lg);
  background: var(--yb-white);
  -webkit-overflow-scrolling: touch;
}
.page-products .pd-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 15px;
}
.page-products .pd-table caption {
  caption-side: top;
  text-align: left;
  padding: 16px 20px;
  font-size: 13px;
  color: var(--yb-muted);
  border-bottom: 1px solid var(--yb-line-soft);
}
.page-products .pd-table th,
.page-products .pd-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--yb-line-soft);
  vertical-align: top;
}
.page-products .pd-table thead th {
  background: var(--yb-ice);
  color: var(--yb-deep);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.page-products .pd-table tbody tr:nth-child(even) { background: var(--yb-surface); }
.page-products .pd-table tbody th {
  font-weight: 700;
  color: var(--yb-blue);
  white-space: nowrap;
}
.page-products .pd-table td { color: var(--yb-ink); }
.page-products .pd-ok {
  color: var(--yb-teal);
  font-weight: 600;
}

/* ---------- 版本演进 ---------- */
.page-products .pd-version__figure {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--yb-r-lg);
  margin-bottom: var(--yb-gap-2);
  object-fit: cover;
}
.page-products .pd-versions {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--yb-gap-1);
}
.page-products .pd-ver {
  padding: var(--yb-gap-1);
  border-radius: var(--yb-r-lg);
  background: var(--yb-white);
  border: 1px solid var(--yb-line);
  border-left: 4px solid var(--yb-line);
}
.page-products .pd-ver--now {
  background: var(--yb-orange-soft);
  border-color: rgba(239, 135, 34, 0.35);
  border-left-color: var(--yb-orange);
}
.page-products .pd-ver__year {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--yb-blue);
  font-variant-numeric: tabular-nums;
}
.page-products .pd-ver--now .pd-ver__year { color: var(--yb-orange); }
.page-products .pd-ver h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--yb-deep);
  line-height: 1.4;
}
.page-products .pd-ver p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
}
.page-products .pd-version__more {
  margin: var(--yb-gap-2) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-muted);
}
.page-products .pd-version__more a {
  color: var(--yb-blue);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 75, 143, 0.3);
}
.page-products .pd-version__more a:hover { border-bottom-color: var(--yb-blue); }

/* ---------- 系统要求与 FAQ ---------- */
.page-products .pd-env__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--yb-gap-3);
}
.page-products .pd-env__main h2 {
  margin: 10px 0 var(--yb-gap-2);
  font-size: clamp(24px, 4.4vw, 34px);
  font-weight: 800;
  color: var(--yb-deep);
  letter-spacing: -0.01em;
}
.page-products .pd-checks {
  list-style: none;
  margin: 0 0 var(--yb-gap-3);
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-products .pd-checks li {
  padding: 16px 18px;
  border-radius: var(--yb-r-sm);
  background: var(--yb-white);
  border: 1px solid var(--yb-line);
  border-left: 3px solid var(--yb-teal);
}
.page-products .pd-checks h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--yb-deep);
}
.page-products .pd-checks p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--yb-muted);
}
.page-products .pd-faq {
  display: grid;
  gap: 10px;
}
.page-products .pd-faq__title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 700;
  color: var(--yb-deep);
}
.page-products .pd-faq details {
  background: var(--yb-white);
  border: 1px solid var(--yb-line);
  border-radius: var(--yb-r-sm);
  padding: 0 18px;
}
.page-products .pd-faq summary {
  cursor: pointer;
  padding: 15px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--yb-deep);
  list-style: none;
}
.page-products .pd-faq summary::-webkit-details-marker { display: none; }
.page-products .pd-faq summary::after {
  content: "+";
  float: right;
  margin-left: 12px;
  font-weight: 800;
  color: var(--yb-teal);
}
.page-products .pd-faq details[open] summary::after { content: "–"; }
.page-products .pd-faq p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-muted);
}
.page-products .pd-faq a {
  color: var(--yb-blue);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 75, 143, 0.3);
}
.page-products .pd-env__aside {
  display: grid;
  gap: var(--yb-gap-1);
  align-content: start;
}
.page-products .pd-env__figure {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--yb-r-lg);
  object-fit: cover;
}
.page-products .pd-env__aside .yb-callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 下一步 ---------- */
.page-products .pd-next__title {
  margin: 0 0 var(--yb-gap-2);
  font-size: clamp(24px, 4.4vw, 34px);
  font-weight: 800;
  color: var(--yb-deep);
  letter-spacing: -0.01em;
}
.page-products .pd-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--yb-gap-1);
}
.page-products .pd-next__card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: var(--yb-gap-2);
  border-radius: var(--yb-r-lg);
  background: var(--yb-white);
  border: 1px solid var(--yb-line);
}
.page-products .pd-next__card--teal {
  background: var(--yb-teal-soft);
  border-color: rgba(14, 158, 143, 0.28);
}
.page-products .pd-next__card--warm {
  background: var(--yb-orange-soft);
  border-color: rgba(239, 135, 34, 0.28);
}
.page-products .pd-next__kicker {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--yb-muted);
}
.page-products .pd-next__card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: var(--yb-deep);
  line-height: 1.35;
}
.page-products .pd-next__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-ink);
  flex: 1;
}
.page-products .pd-next__card .yb-btn { align-self: flex-start; }

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pd-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pd-checks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pd-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .pd-step {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: var(--yb-gap-2);
    padding-left: 24px;
    align-items: start;
  }
  .page-products .yb-step-num { font-size: 112px; }
  .page-products .pd-step__body { padding-top: 10px; }
  .page-products .pd-head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
  }
  .page-products .pd-versions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-products .pd-hero {
    padding-top: var(--yb-gap-3);
  }
  .page-products .pd-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: var(--yb-gap-3);
    align-items: center;
  }
  .page-products .pd-env__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: var(--yb-gap-3);
  }
  .page-products .pd-downloads {
    padding-left: var(--yb-gap-3);
    padding-right: var(--yb-gap-3);
  }
}

@media (min-width: 1160px) {
  .page-products .pd-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-card { transition: none; }
}
<<<END>>>