.page-products .page-head {
  padding-block: 30px 24px;
  position: relative;
}
.page-products .page-head__title {
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.08;
  max-width: 16em;
}
.page-products .page-head__lead {
  max-width: 62ch;
  color: var(--muted);
  margin-top: 14px;
}
@media (min-width: 760px) {
  .page-products .page-head::after {
    content: "";
    position: absolute;
    right: 0;
    top: 18px;
    width: 180px;
    height: 180px;
    border: 1px solid var(--line);
    border-radius: 50%;
    opacity: .55;
    pointer-events: none;
  }
  .page-products .page-head__title,
  .page-products .page-head__lead,
  .page-products .page-head__label {
    position: relative;
    z-index: 1;
  }
}

/* 入口对比 */
.page-products .entry-split {
  display: grid;
  border: 1px solid var(--line);
  background: var(--ink-1);
}
.page-products .entry-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 18px 22px;
  transition: background var(--t) var(--ease);
}
.page-products .entry-side--desk {
  border-top: 3px solid var(--neon);
}
.page-products .entry-side--ios {
  border-top: 3px solid var(--blue);
}
.page-products .entry-side--desk + .entry-side--ios {
  border-top-color: var(--blue);
}
.page-products .entry-side:hover,
.page-products .entry-side:focus-within {
  background: var(--ink-2);
}
.page-products .entry-side__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--neon);
  color: var(--neon);
}
.page-products .entry-side--ios .entry-side__tag {
  border-color: var(--blue);
  color: var(--blue);
}
.page-products .entry-side__title {
  font-size: clamp(20px, 3.2vw, 26px);
  line-height: 1.25;
  color: var(--text);
}
.page-products .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-products .entry-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}
.page-products .entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--neon);
}
.page-products .entry-side--ios .entry-list li::before {
  border-color: var(--blue);
}
.page-products .entry-side__use {
  margin-top: 2px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}
.page-products .entry-side__use strong {
  color: var(--text);
  font-weight: 700;
}
.page-products .entry-side .btn {
  align-self: flex-start;
  margin-top: 2px;
}
.page-products .entry-foot {
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--neon-dim);
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
  max-width: 68ch;
}
@media (min-width: 860px) {
  .page-products .entry-split {
    grid-template-columns: 1fr 1fr;
  }
  .page-products .entry-side {
    padding: 30px 26px 28px;
  }
  .page-products .entry-side--ios {
    border-left: 1px dashed var(--line);
  }
  .page-products .entry-side--desk + .entry-side--ios {
    border-top-color: var(--blue);
  }
}

/* 页内章节索引 */
.page-products .jump-index {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  gap: 2px;
  margin-top: 28px;
  padding-inline: max(var(--gutter), calc((100vw - var(--wrap)) / 2));
  background: var(--ink-0);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}
.page-products .jump-index::-webkit-scrollbar {
  display: none;
}
.page-products .jump-index__link {
  flex: none;
  padding: 13px 13px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.page-products .jump-index__link:hover,
.page-products .jump-index__link:focus-visible {
  color: var(--text);
}
.page-products .jump-index__link.is-active {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* 苹果端四步 */
.page-products .ios-layout {
  display: grid;
  gap: 24px;
}
.page-products .ios-layout__fig {
  margin: 0;
}
.page-products .ios-layout__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}
.page-products .step {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.page-products .step:last-child {
  border-bottom: 1px solid var(--line);
}
.page-products .step__num {
  font-size: clamp(26px, 5vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
  letter-spacing: 0;
}
.page-products .step__title {
  font-size: 19px;
  line-height: 1.3;
  margin-bottom: 6px;
}
.page-products .step__body p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-products .fold--ios {
  margin-top: 22px;
}
.page-products .fold__panel p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 68ch;
}
.page-products .fold__panel p + p {
  margin-top: 10px;
}
@media (min-width: 900px) {
  .page-products .ios-layout {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    gap: 34px;
    align-items: start;
  }
  .page-products .ios-layout__fig {
    position: sticky;
    top: 76px;
  }
}

/* 电脑端大屏 */
.page-products .screen-frame {
  position: relative;
  margin-top: 20px;
  padding: 14px 14px 40px;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  border: 1px solid var(--line);
  background:
    linear-gradient(var(--line-soft) 1px, transparent 1px) 0 0 / 100% 34px,
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 34px 100%,
    var(--ink-1);
}
.page-products .screen-frame__rail {
  display: grid;
  grid-template-rows: repeat(5, 1fr);
  gap: 8px;
}
.page-products .screen-frame__rail span {
  border: 1px solid var(--line);
  background: var(--ink-2);
}
.page-products .screen-frame__rail span:first-child {
  border-color: var(--neon);
  background: rgba(198, 255, 61, .12);
}
.page-products .screen-frame__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.page-products .screen-frame__card {
  border: 1px dashed var(--line);
  background: var(--ink-2);
  min-height: 72px;
}
.page-products .screen-frame__card:nth-child(2) {
  border-style: solid;
  border-color: var(--blue-dim);
}
.page-products .screen-frame__note {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--neon);
}
.page-products .tips {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}
.page-products .tip {
  border-left: 2px solid var(--blue);
  padding-left: 14px;
}
.page-products .tip__title {
  font-size: 17px;
  line-height: 1.35;
  margin-bottom: 6px;
}
.page-products .tip p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
@media (min-width: 760px) {
  .page-products .tips {
    grid-template-columns: 1fr 1fr;
    gap: 22px 30px;
  }
}

/* 赛程卡片字段 */
.page-products .field-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .field-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  background: var(--ink-1);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}
.page-products .field-block:hover {
  border-color: var(--blue-dim);
  transform: translateY(-2px);
}
.page-products .field-block__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--blue);
}
.page-products .field-block__name {
  font-size: 18px;
  line-height: 1.3;
}
.page-products .field-block p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-products .field-block__upd {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}
.page-products .field-block--alert {
  border-color: var(--orange-dim);
}
.page-products .field-block--alert .field-block__key {
  color: var(--orange);
}
.page-products .field-block--alert .field-block__upd {
  color: var(--orange);
}
.page-products .field-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
@media (min-width: 760px) {
  .page-products .field-grid > .field-block:nth-child(5) {
    grid-column: 1 / -1;
  }
}

/* 中段转折图 */
.page-products .transit-shot {
  margin-block: 8px 0;
}
.page-products .transit-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 设备与版本 */
.page-products .device-rows {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}
.page-products .device-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.page-products .device-row__key {
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--neon);
}
.page-products .device-row__body h3 {
  font-size: 17px;
  line-height: 1.35;
  margin-bottom: 6px;
}
.page-products .device-row__body p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
@media (min-width: 700px) {
  .page-products .device-row {
    grid-template-columns: 158px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

.page-products .ver-note {
  margin-top: 26px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 68ch;
}
.page-products .ver-bar {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-products .ver-node {
  position: relative;
  padding: 14px 0 14px 22px;
  margin-left: 5px;
  border-left: 1px solid var(--line);
  outline: none;
}
.page-products .ver-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 2px solid var(--neon);
}
.page-products .ver-node__ver {
  display: block;
  font-size: 17px;
  color: var(--text);
  letter-spacing: .04em;
}
.page-products .ver-node__stage {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  color: var(--muted);
}
.page-products .ver-node__pop {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}
@media (min-width: 820px) {
  .page-products .ver-bar {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin-top: 30px;
    border-top: 1px solid var(--line);
    padding-bottom: 118px;
  }
  .page-products .ver-node {
    padding: 26px 14px 0 0;
    margin-left: 0;
    border-left: 0;
  }
  .page-products .ver-node::before {
    top: -5px;
    left: 0;
    border-radius: 0;
  }
  .page-products .ver-node:hover,
  .page-products .ver-node:focus-visible {
    color: var(--neon);
  }
  .page-products .ver-node__ver {
    font-size: 18px;
  }
  .page-products .ver-node__pop {
    position: absolute;
    left: 0;
    top: calc(100% + 10px);
    width: 210px;
    margin-top: 0;
    padding: 10px 12px;
    background: var(--ink-2);
    border: 1px solid var(--line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t) var(--ease);
    z-index: 6;
  }
  .page-products .ver-node:hover .ver-node__pop,
  .page-products .ver-node:focus-within .ver-node__pop {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .page-products .ver-node:last-child .ver-node__pop {
    left: auto;
    right: 0;
  }
}
.page-products .ver-media {
  margin-top: 26px;
}

/* 延伸入口 */
.page-products .next-links {
  display: grid;
  gap: 12px;
}
.page-products .next-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 16px 15px;
  border: 1px solid var(--line);
  background: var(--ink-1);
  text-decoration: none;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.page-products .next-link__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.page-products .next-link__note {
  font-size: 13px;
  color: var(--muted);
}
.page-products .next-link:hover,
.page-products .next-link:focus-visible {
  border-color: var(--neon);
  background: var(--ink-2);
}
.page-products .next-link:hover .next-link__note {
  color: var(--neon);
}
@media (min-width: 780px) {
  .page-products .next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .entry-side,
  .page-products .field-block,
  .page-products .jump-index__link,
  .page-products .next-link,
  .page-products .ver-node__pop {
    transition: none;
  }
  .page-products .field-block:hover {
    transform: none;
  }
}
<<<END>>>