.page-products {
  --pp-sticky-top: 96px;
  --pp-rule: 1px solid var(--line);
}

/* ---------- 首屏 ---------- */
.page-products .dl-top {
  padding-top: 28px;
  padding-bottom: 8px;
}

.page-products .dl-top__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-products .dl-top__main h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 50px);
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--ink);
  margin: 14px 0 18px;
  max-width: 15em;
}

.page-products .dl-top__intro {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.78;
  color: var(--fog);
  max-width: 33em;
  margin: 0 0 24px;
}

.page-products .dl-top__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .dl-top__figure {
  margin: 32px 0 0;
}

/* 版本摘要卡 */
.page-products .vcard {
  background: var(--ink);
  color: var(--white);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px 18px;
}

.page-products .vcard__label {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  border: 1px solid var(--cyan);
  padding: 3px 8px;
  margin-bottom: 16px;
}

.page-products .vcard__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--white);
}

.page-products .vcard__date {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--line);
}

.page-products .vcard__rows {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid rgba(251, 248, 241, .2);
}

.page-products .vcard__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(251, 248, 241, .12);
}

.page-products .vcard__k {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--line);
}

.page-products .vcard__v {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--white);
}

.page-products .vcard__copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 18px;
  padding: 10px 12px;
  background: var(--red);
  border: 1px solid var(--red);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .vcard__copy:hover {
  background: var(--red-deep);
  border-color: var(--red-deep);
}

.page-products .vcard__foot {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--line);
}

/* ---------- 下载矩阵 ---------- */
.page-products .dl-matrix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.page-products .dl-entry {
  display: flex;
  flex-direction: column;
}

.page-products .dl-entry__specs {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  border-top: var(--pp-rule);
}

.page-products .dl-entry__specs li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: var(--pp-rule);
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--fog);
}

.page-products .dl-entry__specs li span:last-child {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  text-align: right;
}

.page-products .dl-entry__actions {
  margin-top: auto;
}

/* ---------- 版本库 ---------- */
.page-products .lib-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .lib-lead__text {
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--fog);
  margin: 24px 0 18px;
}

.page-products .lib-lead__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pp-rule);
}

.page-products .lib-lead__list li {
  display: flex;
  gap: 12px;
  padding: 11px 0;
  border-bottom: var(--pp-rule);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--fog);
}

.page-products .lib-lead__list li span {
  flex: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  border: 1px solid var(--red);
  color: var(--red);
}

.page-products .lib-lead__figure {
  margin: 22px 0 0;
}

.page-products .lib-table-wrap {
  overflow-x: auto;
  border: var(--pp-rule);
  background: var(--paper-2);
  -webkit-overflow-scrolling: touch;
}

.page-products .lib-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-family: var(--font-body);
  font-size: 14.5px;
  text-align: left;
}

.page-products .lib-table__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 14px;
  font-family: var(--font-head);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--fog);
  border-bottom: var(--pp-rule);
}

.page-products .lib-table thead th {
  background: var(--fog);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .06em;
  padding: 10px 14px;
  white-space: nowrap;
}

.page-products .lib-table td {
  padding: 11px 14px;
  border-bottom: var(--pp-rule);
  color: var(--fog);
  vertical-align: middle;
}

.page-products .lib-table tbody tr:nth-child(even) {
  background: var(--paper);
}

.page-products .lib-table tbody tr:hover {
  background: var(--white);
}

.page-products .lib-table td.mono {
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  white-space: nowrap;
}

.page-products .ver-copy {
  background: none;
  border: 0;
  padding: 0 0 1px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  border-bottom: 1px dashed var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .ver-copy:hover,
.page-products .ver-copy:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-products .ver-copy[data-copied] {
  color: var(--cyan-deep);
  border-bottom-color: var(--cyan-deep);
}

.page-products .lib-note {
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--fog);
}

.page-products .lib-note a {
  color: var(--red-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 安装条件 ---------- */
.page-products .check-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .check-list {
  margin-top: 24px;
  border-top: var(--pp-rule);
}

.page-products .check-item {
  border-bottom: var(--pp-rule);
}

.page-products .check-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  background: var(--paper-2);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .check-item summary::-webkit-details-marker {
  display: none;
}

.page-products .check-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--red);
}

.page-products .check-item[open] summary::after {
  content: "−";
}

.page-products .check-item summary:hover {
  background: var(--white);
}

.page-products .check-item__body {
  background: var(--paper-2);
  padding: 0 16px 14px;
  border-top: 1px solid var(--line);
}

.page-products .check-item__body p {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--fog);
}

.page-products .check-figure {
  margin: 0;
}

/* ---------- 三条分支 ---------- */
.page-products .branches__intro {
  margin: 24px 0 0;
  max-width: 44em;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--fog);
}

.page-products .branch-list {
  margin-top: 26px;
}

.page-products .branch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  position: relative;
  padding: 18px 0 18px 22px;
  border-left: 2px solid var(--line);
}

.page-products .branch::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 26px;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--fog);
  border-radius: 50%;
}

.page-products .branch:first-child::before {
  border-color: var(--red);
  background: var(--red);
}

.page-products .branch__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-products .branch__num {
  font-size: 12px;
  color: var(--red);
  letter-spacing: .08em;
}

.page-products .branch__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-products .branch__ver {
  font-size: 12px;
  color: var(--cyan-deep);
  border: 1px solid var(--line);
  padding: 2px 7px;
}

.page-products .branch__body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--fog);
  max-width: 40em;
}

.page-products .tag-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: var(--pp-rule);
}

.page-products .tag-strip__text h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-products .tag-strip__text p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--fog);
  max-width: 34em;
}

.page-products .tag-strip__figure {
  margin: 0;
}

/* ---------- 下一步 ---------- */
.page-products .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.page-products .next-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .next-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-products .next-figure {
  margin: 28px 0 0;
}

/* ---------- 节奏 ---------- */
.page-products .cadence {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  padding: 42px 0 46px;
}

.page-products .cadence::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(251, 248, 241, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(251, 248, 241, .07) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-products .cadence__inner {
  position: relative;
}

.page-products .cadence__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.6vw, 36px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: .02em;
  color: var(--white);
  max-width: 18em;
}

.page-products .cadence__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .cadence__list li {
  border-top: 2px solid var(--cyan);
  padding-top: 12px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.72;
  color: var(--line);
}

.page-products .cadence__list strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-products .cadence__cta {
  margin-top: 28px;
}

/* ---------- 结尾 ---------- */
.page-products .outro {
  padding-bottom: 56px;
}

.page-products .outro__copy {
  max-width: 36em;
}

.page-products .outro__title {
  margin: 12px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.4vw, 34px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--ink);
}

.page-products .outro__text {
  margin: 0 0 22px;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--fog);
}

.page-products .outro__figure {
  margin: 30px 0 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .dl-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 22px;
  }

  .page-products .dl-entry:nth-child(2) {
    margin-top: 24px;
  }

  .page-products .dl-entry:nth-child(3) {
    margin-top: 48px;
  }

  .page-products .branch {
    grid-template-columns: 170px minmax(0, 1fr);
    align-items: start;
    gap: 6px 24px;
  }

  .page-products .branch__head {
    flex-direction: column;
    gap: 4px;
  }

  .page-products .tag-strip {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
    gap: 32px;
  }

  .page-products .next-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .cadence__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-products .dl-top__grid {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 48px;
    align-items: start;
  }

  .page-products .dl-top__aside {
    position: sticky;
    top: var(--pp-sticky-top);
  }

  .page-products .lib-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 36px;
    align-items: start;
  }

  .page-products .check-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 36px;
  }

  .page-products .check-list {
    margin-top: 26px;
  }

  .page-products .outro .shell {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: center;
  }

  .page-products .outro__figure {
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .vcard__copy,
  .page-products .ver-copy,
  .page-products .check-item summary {
    transition: none;
  }
}
<<<END>>>