.page-products {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products .pd {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .pd-intro {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 34px) 0 clamp(24px, 3.4vw, 40px);
  border-bottom: 1px solid var(--line-ink-strong);
}

.page-products .pd-intro h1 {
  margin: 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.02;
  letter-spacing: 0.01em;
}

.page-products .pd-intro__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 端类型切换 ---------- */
.page-products .endpick {
  margin: clamp(20px, 3vw, 34px) 0 clamp(6px, 1vw, 12px);
  position: relative;
}

.page-products .endpick__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}

.page-products .endpick__tabs {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line-ink-strong);
}

.page-products .endpick__tab {
  flex: 1 1 auto;
  min-width: 0;
  padding: 13px clamp(8px, 2vw, 22px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-align: center;
  color: var(--graphite);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
  user-select: none;
}

.page-products .endpick__tab:hover {
  color: var(--ink);
}

.page-products .endpick__radio--ios:checked ~ .endpick__tabs .endpick__tab--ios,
.page-products .endpick__radio--web:checked ~ .endpick__tabs .endpick__tab--web,
.page-products .endpick__radio--big:checked ~ .endpick__tabs .endpick__tab--big {
  color: var(--ink);
  border-bottom-color: var(--gold);
  background: linear-gradient(180deg, rgba(201, 162, 39, 0.14), rgba(201, 162, 39, 0));
}

.page-products .endpick:has(.endpick__radio--ios:focus-visible) .endpick__tab--ios,
.page-products .endpick:has(.endpick__radio--web:focus-visible) .endpick__tab--web,
.page-products .endpick:has(.endpick__radio--big:focus-visible) .endpick__tab--big {
  outline: 2px solid var(--gold-hi);
  outline-offset: -3px;
}

.page-products .endpick__panels {
  border: 1px solid var(--line-ink);
  border-top: 0;
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--paper-2);
}

.page-products .endpick__panel {
  display: none;
}

.page-products .endpick__radio--ios:checked ~ .endpick__panels .endpick__panel--ios,
.page-products .endpick__radio--web:checked ~ .endpick__panels .endpick__panel--web,
.page-products .endpick__radio--big:checked ~ .endpick__panels .endpick__panel--big {
  display: block;
}

.page-products .endpick__panel h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.2;
}

.page-products .endpick__panel p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
}

.page-products .endpick__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-products .endpick__facts li {
  padding: 4px 10px;
  border: 1px solid var(--line-ink-strong);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--ink-2);
}

/* ---------- 通用链接 ---------- */
.page-products .pd-link {
  color: var(--gold-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .pd-link:hover,
.page-products .pd-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-products .pd-link:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 2px;
}

/* ---------- 主分屏 ---------- */
.page-products .pd-main {
  padding: clamp(32px, 4.5vw, 60px) 0 clamp(30px, 4vw, 52px);
}

.page-products .pd-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.6vw, 48px);
}

.page-products .pd-spec {
  background: var(--ink);
  color: var(--white);
  padding: clamp(18px, 2.4vw, 26px);
  border-top: 3px solid var(--gold);
}

.page-products .pd-spec__head {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-light-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-hi);
}

.page-products .pd-spec__dl {
  margin: 0;
  display: grid;
}

.page-products .pd-spec__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-light);
  font-size: 13px;
}

.page-products .pd-spec__row dt {
  color: rgba(247, 250, 252, 0.62);
  flex: 0 0 auto;
}

.page-products .pd-spec__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--white);
  text-align: right;
}

.page-products .pd-spec__anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 18px 0 0;
}

.page-products .pd-spec__anchors a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--gold-hi);
  text-decoration: none;
  padding: 3px 0;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}

.page-products .pd-spec__anchors a:hover,
.page-products .pd-spec__anchors a:focus-visible {
  border-bottom-color: var(--gold-hi);
}

.page-products .pd-spec__anchors a:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

.page-products .pd-spec__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-light);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(247, 250, 252, 0.6);
}

/* ---------- 正文流 ---------- */
.page-products .pd-flow {
  display: grid;
  gap: clamp(36px, 5vw, 66px);
  min-width: 0;
}

.page-products .pd-block {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
  min-width: 0;
}

.page-products .pd-block__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.page-products .pd-block h2 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.12;
  letter-spacing: 0.01em;
}

.page-products .pd-block h3.pd-sub {
  margin: 26px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.25;
}

.page-products .pd-block p {
  margin: 0 0 14px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.82;
}

/* ---------- 图 ---------- */
.page-products .pd-fig {
  margin: 22px 0 18px;
  border: 1px solid var(--line-ink);
  background: var(--ink);
  overflow: hidden;
}

.page-products .pd-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pd-fig--square img {
  max-height: 460px;
  object-position: center;
}

.page-products .pd-fig figcaption {
  padding: 9px 14px;
  border-top: 1px solid var(--line-ink);
  background: var(--paper-2);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: var(--graphite);
}

/* ---------- 步骤 ---------- */
.page-products .pd-steps {
  margin: 20px 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: pdstep;
}

.page-products .pd-steps li {
  position: relative;
  counter-increment: pdstep;
  padding: 14px 0 14px 48px;
  border-bottom: 1px solid var(--line-ink);
  font-size: 15px;
  line-height: 1.78;
  max-width: 66ch;
}

.page-products .pd-steps li:first-child {
  border-top: 1px solid var(--line-ink);
}

.page-products .pd-steps li::before {
  content: counter(pdstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 15px;
  padding: 3px 6px;
  border: 1px solid var(--line-gold);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--gold-deep);
}

.page-products .pd-steps strong {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 分辨率比例尺 ---------- */
.page-products .pd-res {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(10px, 2.4vw, 26px);
  margin: 0 0 8px;
  padding: 22px 0 16px;
  list-style: none;
  border-bottom: 2px solid var(--ink);
  overflow-x: auto;
}

.page-products .pd-res__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
}

.page-products .pd-res__screen {
  display: block;
  border: 1px solid var(--line-ink-strong);
  background: linear-gradient(160deg, var(--ink-2), var(--ink));
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, 0.22);
}

.page-products .pd-res__screen--a { height: 28px; aspect-ratio: 16 / 9; }
.page-products .pd-res__screen--b { height: 38px; aspect-ratio: 16 / 9; }
.page-products .pd-res__screen--c { height: 50px; aspect-ratio: 16 / 9; }
.page-products .pd-res__screen--d { height: 38px; aspect-ratio: 3440 / 1440; }

.page-products .pd-res__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--ink);
  white-space: nowrap;
}

.page-products .pd-res__note {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--survey);
  white-space: nowrap;
}

/* ---------- 频道 ---------- */
.page-products .pd-ch {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 0 0 6px;
  padding: 0;
  list-style: none;
}

.page-products .pd-ch li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line-ink);
  border-left: 2px solid var(--gold);
  background: var(--paper-2);
  font-size: 14px;
  line-height: 1.5;
}

.page-products .pd-ch__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold-deep);
  flex: 0 0 auto;
}

.page-products .pd-ch__name {
  font-weight: 700;
  flex: 0 0 auto;
}

.page-products .pd-ch__desc {
  color: var(--graphite);
  font-size: 13px;
  min-width: 0;
}

/* ---------- 路径对比 ---------- */
.page-products .pd-path {
  display: grid;
  gap: 8px;
  margin: 0 0 6px;
}

.page-products .pd-path__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px dashed var(--line-ink-strong);
  background: var(--paper);
  font-size: 13.5px;
  flex-wrap: wrap;
}

.page-products .pd-path__row--now {
  border-style: solid;
  border-color: var(--gold);
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.16), rgba(201, 162, 39, 0.02));
}

.page-products .pd-path__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--graphite);
  flex: 0 0 auto;
}

.page-products .pd-path__row--now .pd-path__tag {
  color: var(--ink);
}

.page-products .pd-path__chain {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--ink);
}

.page-products .pd-path__num {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 8px;
  border: 1px solid var(--line-ink-strong);
  color: var(--ink);
  flex: 0 0 auto;
}

.page-products .pd-path__row--now .pd-path__num {
  border-color: var(--ink);
  background: var(--gold);
  color: var(--ink);
}

/* ---------- 标签层级 ---------- */
.page-products .pd-layers {
  display: grid;
  gap: 0;
  margin: 20px 0 18px;
}

.page-products .pd-layers__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-ink);
}

.page-products .pd-layers__row:first-child {
  border-top: 1px solid var(--line-ink);
}

.page-products .pd-layers__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

.page-products .pd-layers__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 会员中心核对表 ---------- */
.page-products .pd-check {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 20px 0 16px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-ink-strong);
}

.page-products .pd-check li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-ink);
  font-size: 14.5px;
}

.page-products .pd-check__k {
  flex: 0 0 auto;
  min-width: 88px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  border-left: 2px solid var(--gold);
  padding-left: 9px;
}

.page-products .pd-check__v {
  color: var(--graphite);
  min-width: 0;
}

/* ---------- 版本刻度 ---------- */
.page-products .pd-scale {
  position: relative;
  height: 62px;
  margin: 22px 0 4px;
  border-bottom: 1px solid var(--line-ink-strong);
  background-image: repeating-linear-gradient(
    90deg,
    var(--line-ink-strong) 0 1px,
    transparent 1px 5.55%
  );
  background-repeat: no-repeat;
  background-position: bottom left;
  background-size: 100% 18px;
}

.page-products .pd-scale::before {
  content: "最近 18 个版本";
  position: absolute;
  left: 0;
  bottom: 26px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--graphite);
}

.page-products .pd-scale::after {
  content: "v3.2.1 当前";
  position: absolute;
  right: 0;
  bottom: 26px;
  padding: 3px 9px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
}

/* ---------- CTA ---------- */
.page-products .pd-cta {
  background: var(--ink);
  color: var(--white);
  border-top: 3px solid var(--gold);
  padding: clamp(30px, 4vw, 52px) 0;
}

.page-products .pd-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-products .pd-cta h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.15;
  color: var(--white);
}

.page-products .pd-cta p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.78);
}

.page-products .pd-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .pd-cta__links .btn {
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.page-products .pd-cta__links .btn--ghost {
  color: var(--white);
  border-color: var(--line-light-strong);
}

.page-products .pd-cta__links .btn--ghost:hover,
.page-products .pd-cta__links .btn--ghost:focus-visible {
  color: var(--ink);
  background: var(--gold-hi);
  border-color: var(--gold-hi);
}

.page-products .pd-cta__links .btn--gold:hover,
.page-products .pd-cta__links .btn--gold:focus-visible {
  background: var(--gold-hi);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-products .pd-ch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pd-split {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-products .pd-spec {
    position: sticky;
    top: calc(var(--topbar-h) + 18px);
  }

  .page-products .pd-layers__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-products .pd-cta__inner {
    grid-template-columns: 7fr 5fr;
  }

  .page-products .pd-cta__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-products .pd-intro {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 420px) {
  .page-products .endpick__tab {
    font-size: 12px;
    padding: 12px 6px;
  }

  .page-products .pd-res__screen--a { height: 22px; }
  .page-products .pd-res__screen--b { height: 30px; }
  .page-products .pd-res__screen--c { height: 40px; }
  .page-products .pd-res__screen--d { height: 30px; }

  .page-products .pd-spec__row {
    font-size: 12.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .endpick__tab,
  .page-products .pd-link,
  .page-products .pd-cta__links .btn {
    transition: none;
  }
}
<<<END>>>