.page-products {
  --pr-line: rgba(46, 70, 117, 0.22);
  --pr-text: #37362e;
  --pr-railw: 58px;
  --pr-gap: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-products .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 42px);
  align-items: start;
}

.page-products .pr-hero h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--indigo);
  margin: 10px 0 18px;
  max-width: 15em;
}

.page-products .pr-hero__lede {
  max-width: 33em;
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.9;
  letter-spacing: 0.01em;
  color: var(--pr-text);
  margin: 0;
}

.page-products .pr-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-stats li {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-products .pr-stats strong {
  display: block;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--indigo);
  margin-bottom: 4px;
}

/* ---------- 图片框 ---------- */
.page-products .pr-frame {
  border: var(--hairline);
  background: var(--paper-shade);
  padding: 8px;
  box-shadow: var(--shadow-sheet);
}

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

.page-products figure {
  margin: 0;
}

.page-products figcaption {
  margin-top: 10px;
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.page-products .pr-hero__fig {
  align-self: stretch;
}

/* ---------- 刻度带 ---------- */
.page-products .pr-scale {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
  border-top: 1px solid var(--indigo-mid);
  margin: clamp(28px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
  padding-bottom: 2px;
}

.page-products .pr-scale::-webkit-scrollbar {
  display: none;
}

.page-products .pr-scale span {
  position: relative;
  flex: 1 1 0;
  min-width: 34px;
  padding-top: 12px;
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .pr-scale span::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: 6px;
  background: var(--ochre);
  transform: translateX(-50%);
}

/* ---------- 章节头 ---------- */
.page-products .pr-sec-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .pr-sec-head h2 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--indigo);
  margin: 8px 0 12px;
}

.page-products .pr-sec-head__lede {
  max-width: 34em;
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--pr-text);
  margin: 0;
}

/* ---------- 四组矩阵 ---------- */
.page-products .pr-groups__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pr-gap);
}

.page-products .pr-group {
  position: relative;
  background: var(--paper-white);
  border: var(--hairline);
  padding: 20px 18px 22px;
  box-shadow: 0 1px 0 -1px var(--paper-shade), 0 18px 30px -30px rgba(12, 21, 38, 0.7);
}

.page-products .pr-group::before {
  content: "";
  display: block;
  height: 5px;
  width: var(--pr-bar-w, 100%);
  background: var(--pr-bar, var(--indigo-mid));
  margin-bottom: 18px;
}

.page-products .pr-group--nav {
  --pr-bar: var(--indigo-mid);
  --pr-bar-w: 100%;
}

.page-products .pr-group--guide {
  --pr-bar: var(--turquoise);
  --pr-bar-w: 72%;
}

.page-products .pr-group--content {
  --pr-bar: var(--ochre);
  --pr-bar-w: 88%;
}

.page-products .pr-group--support {
  --pr-bar: var(--cinnabar);
  --pr-bar-w: 56%;
}

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

.page-products .pr-group__head h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--indigo);
  margin: 0;
}

.page-products .pr-group__range {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-products .pr-group p {
  margin: 10px 0 16px;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.85;
  color: var(--pr-text);
}

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

.page-products .pr-group__items li {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--indigo-mid);
  background: var(--paper);
  border: 1px solid var(--pr-line);
  padding: 3px 7px;
}

.page-products .pr-band {
  margin-top: clamp(26px, 4vw, 46px);
}

/* ---------- 14 栏明细 ---------- */
.page-products .pr-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pr-row {
  display: grid;
  grid-template-columns: var(--pr-railw) minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--pr-line);
}

.page-products .pr-rows .pr-row:first-child {
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-row__id {
  align-self: start;
}

.page-products .pr-row__num {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
  transition: color 0.22s var(--ease);
}

.page-products .pr-row__count {
  display: block;
  margin-top: 7px;
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
  opacity: 0;
  transition: opacity 0.22s var(--ease);
}

.page-products .pr-row:hover .pr-row__num,
.page-products .pr-row:focus-within .pr-row__num {
  color: var(--indigo);
}

.page-products .pr-row:hover .pr-row__count,
.page-products .pr-row:focus-within .pr-row__count {
  opacity: 1;
}

.page-products .pr-row__body h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--indigo);
  margin: 0 0 6px;
}

.page-products .pr-row__body p {
  margin: 0;
  max-width: 32em;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.85;
  color: var(--pr-text);
}

.page-products .pr-row__items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-products .pr-row__items li {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pr-row__code {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--indigo);
  background: var(--paper-shade);
  padding: 1px 5px;
  white-space: nowrap;
}

/* ---------- 速查标签 ---------- */
.page-products .pr-chips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(205px, 1fr));
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pr-chip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "flag name"
    "flag meta";
  align-items: center;
  gap: 3px 12px;
  background: var(--paper-white);
  border: var(--hairline);
  border-left: 3px solid var(--ochre);
  padding: 14px 14px 14px 13px;
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-products .pr-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 26px -24px rgba(12, 21, 38, 0.85);
}

.page-products .pr-chip__flag {
  grid-area: flag;
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: var(--indigo);
  padding: 0 7px;
}

.page-products .pr-chip__name {
  grid-area: name;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--indigo);
}

.page-products .pr-chip__meta {
  grid-area: meta;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 编号规则 ---------- */
.page-products .pr-code__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-code__body h2,
.page-products .pr-cadence__body h2 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--indigo);
  margin: 8px 0 14px;
}

.page-products .pr-code__body > p,
.page-products .pr-cadence__body > p {
  max-width: 33em;
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--pr-text);
  margin: 0 0 20px;
}

.page-products .pr-code__ways {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pr-code__ways li {
  position: relative;
  padding: 13px 0 13px 0;
  border-top: 1px solid var(--pr-line);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pr-text);
}

.page-products .pr-code__k {
  display: inline-block;
  min-width: 4.6em;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cinnabar);
  margin-right: 8px;
}

.page-products .pr-code__svg {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
  background: var(--paper-white);
  border: var(--hairline);
  padding: 14px 16px;
  box-sizing: content-box;
}

/* ---------- 更新节奏 ---------- */
.page-products .pr-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-cadence__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pr-cadence__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-cadence__k {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--turquoise);
}

.page-products .pr-cadence__list p {
  margin: 0;
  max-width: 32em;
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pr-text);
}

/* ---------- 选择建议 ---------- */
.page-products .pr-which__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-products .pr-which__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding: clamp(18px, 3vw, 26px) 0;
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-which__item:last-child {
  border-bottom: 1px solid var(--pr-line);
}

.page-products .pr-which__num {
  font-family: var(--mono);
  font-size: 24px;
  line-height: 1;
  color: var(--ochre);
  padding-top: 2px;
}

.page-products .pr-which__body h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--indigo);
  margin: 0 0 8px;
}

.page-products .pr-which__body p {
  margin: 0 0 10px;
  max-width: 34em;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.9;
  color: var(--pr-text);
}

.page-products .pr-which__go {
  margin: 0;
}

.page-products .pr-which__go a {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid var(--cinnabar-light);
  padding-bottom: 1px;
}

.page-products .pr-which__go a:hover {
  color: var(--indigo);
  border-bottom-color: var(--indigo);
}

/* ---------- 收束 ---------- */
.page-products .pr-cta {
  margin-top: clamp(34px, 5vw, 62px);
  padding: clamp(24px, 4vw, 36px);
  background: var(--indigo);
  color: var(--paper);
  position: relative;
  box-shadow: 0 3px 0 -1px var(--indigo-deep), 0 26px 40px -36px rgba(12, 21, 38, 0.9);
}

.page-products .pr-cta::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: var(--ochre);
}

.page-products .pr-cta p {
  margin: 0;
  max-width: 34em;
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(244, 238, 227, 0.92);
}

.page-products .pr-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px !important;
}

.page-products .pr-cta .btn--ghost {
  color: var(--paper);
  border-color: rgba(244, 238, 227, 0.5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .pr-groups__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .pr-rows {
    --pr-railw: 92px;
  }

  .page-products .pr-row {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 4px 32px;
  }

  .page-products .pr-which__item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 4px 20px;
  }

  .page-products .pr-which__num {
    font-size: 30px;
  }
}

@media (min-width: 900px) {
  .page-products .pr-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }

  .page-products .pr-code__grid,
  .page-products .pr-cadence__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-products .pr-cadence__fig {
    order: -1;
  }
}

@media (min-width: 1000px) {
  .page-products .pr-row__id {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-chip,
  .page-products .pr-row__num,
  .page-products .pr-row__count {
    transition: none;
  }

  .page-products .pr-chip:hover {
    transform: none;
  }
}
<<<END>>>