.page-products {
  background: var(--c-ink);
  color: var(--c-fog);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 40px;
  border-bottom: 1px solid var(--line-soft);
}
.page-products .pr-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -170px;
  width: 440px;
  height: 460px;
  background: var(--orange-soft);
  border: 1px solid rgba(183, 154, 98, .40);
  transform: rotate(-14deg) skewY(-8deg);
  pointer-events: none;
}
.page-products .pr-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}
.page-products .pr-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-cyan);
}
.page-products .pr-hero__title {
  margin: 0 0 22px;
  font-size: clamp(31px, 5.4vw, 58px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--c-fog);
}
.page-products .pr-hero__lead {
  margin: 0 0 36px;
  max-width: 38em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--fog-70);
}
.page-products .pr-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.page-products .pr-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 15px 16px;
  background: var(--c-ink);
}
.page-products .pr-fact__num {
  font-family: var(--f-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}
.page-products .pr-fact__label {
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--fog-50);
}

/* ---------- 双栏骨架 ---------- */
.page-products .pr-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 36px 0 64px;
}
.page-products .pr-side {
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--c-orange);
  background: var(--c-charcoal);
  padding: 16px 14px;
}
.page-products .pr-side .side-nav__title {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--fog-50);
}
.page-products .pr-side .side-nav__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-products .pr-side .side-nav__list li {
  flex: 0 0 auto;
}
.page-products .pr-side .side-nav__link {
  display: block;
  padding: 7px 11px;
  border: 1px solid var(--line-soft);
  font-size: 13px;
  white-space: nowrap;
  color: var(--fog-70);
  text-decoration: none;
  transition: color var(--t-base) var(--ease), border-color var(--t-base) var(--ease), background var(--t-base) var(--ease);
}
.page-products .pr-side .side-nav__link:hover,
.page-products .pr-side .side-nav__link:focus-visible {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}
.page-products .pr-body {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-products .pr-section {
  padding: 34px 0 6px;
  scroll-margin-top: 20px;
}
.page-products .pr-section + .pr-section {
  margin-top: 38px;
  border-top: 1px dashed var(--line-soft);
}

/* ---------- 01 产品线 ---------- */
.page-products .pr-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 26px;
}
.page-products .pr-line {
  position: relative;
  padding: 22px 20px;
  background: var(--c-charcoal);
  border: 1px solid var(--line-soft);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.page-products .pr-line:hover {
  transform: translateY(-2px);
  border-color: var(--c-brass);
}
.page-products .pr-line__title {
  margin: 14px 0 10px;
  font-size: 21px;
  font-weight: 700;
  color: var(--c-fog);
}
.page-products .pr-line__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog-70);
}
.page-products .pr-line__list {
  margin: 0 0 16px;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--fog-50);
}
.page-products .pr-line__link {
  display: inline-block;
  font-size: 14px;
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base) var(--ease);
}
.page-products .pr-line__link:hover {
  border-bottom-color: var(--c-orange);
}
.page-products .pr-line__figure {
  margin: 18px 0 0;
}
.page-products .pr-line__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-soft);
}
.page-products .media__caption {
  margin-top: 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--fog-50);
}
.page-products .pr-kv {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line-soft);
}
.page-products .pr-kv__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-products .pr-kv__v {
  font-family: var(--f-mono);
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}
.page-products .pr-kv__k {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--fog-50);
}

/* ---------- 02 规格与步骤 ---------- */
.page-products .pr-spec {
  margin: 26px 0 0;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--c-cyan);
}
.page-products .pr-spec__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.page-products .pr-spec__row:last-child {
  border-bottom: 0;
}
.page-products .pr-spec__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--fog-50);
}
.page-products .pr-spec__val {
  margin: 0;
  font-size: 15px;
  color: var(--c-fog);
}
.page-products .pr-steps {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}
.page-products .pr-step {
  position: relative;
  background: var(--c-charcoal);
  border: 1px solid var(--line-soft);
}
.page-products .pr-step__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.page-products .pr-step__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.page-products .pr-step__head:hover {
  background: rgba(217, 227, 222, .04);
}
.page-products .pr-step__num {
  min-width: 30px;
  padding: 3px 7px;
  text-align: center;
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-paper);
  background: var(--c-graphite);
  transition: background var(--t-base) var(--ease), color var(--t-base) var(--ease);
}
.page-products .pr-step__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-fog);
}
.page-products .pr-step__hint {
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--fog-50);
}
.page-products .pr-step__body {
  display: none;
  padding: 0 18px 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog-70);
}
.page-products .pr-step__body p {
  margin: 0 0 10px;
}
.page-products .pr-step__body p:last-child {
  margin-bottom: 0;
}
.page-products .pr-step__input:checked ~ .pr-step__head {
  border-left-color: var(--c-orange);
  background: var(--orange-soft);
}
.page-products .pr-step__input:checked ~ .pr-step__head .pr-step__num {
  background: var(--c-orange);
  color: var(--c-ink);
}
.page-products .pr-step__input:checked ~ .pr-step__body {
  display: block;
}
.page-products .pr-step__input:focus-visible ~ .pr-step__head {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

/* ---------- 截图 ---------- */
.page-products .pr-shot,
.page-products .pr-scene-shot {
  margin: 26px 0 0;
  padding: 10px;
  background: var(--c-ink-soft);
  border: 1px solid var(--line-soft);
}
.page-products .pr-shot img,
.page-products .pr-scene-shot img,
.page-products .pr-fav__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 03 版本说明 ---------- */
.page-products .pr-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}
.page-products .pr-note {
  padding: 18px 18px 20px;
  background: var(--c-paper);
  color: var(--c-ink);
  border-left: 3px solid var(--c-orange);
}
.page-products .pr-note__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-vermilion);
}
.page-products .pr-note__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}
.page-products .pr-note__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-graphite);
}

/* ---------- 04 统计维度 ---------- */
.page-products .pr-dims {
  margin-top: 26px;
  border-top: 1px solid var(--c-graphite);
}
.page-products .pr-dim {
  position: relative;
  display: grid;
  grid-template-columns: 24px 40px minmax(0, 1fr);
  align-items: baseline;
  column-gap: 10px;
  row-gap: 5px;
  padding: 14px 12px;
  border-bottom: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.page-products .pr-dim:hover {
  background: rgba(217, 227, 222, .04);
}
.page-products .pr-dim__check {
  grid-column: 1;
  align-self: start;
  width: 15px;
  height: 15px;
  margin: 5px 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--c-graphite);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.page-products .pr-dim__check:checked {
  border-color: var(--c-cyan);
  background: var(--cyan-soft);
}
.page-products .pr-dim__num {
  grid-column: 2;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--fog-30);
}
.page-products .pr-dim__name {
  grid-column: 3;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-fog);
}
.page-products .pr-dim__desc {
  grid-column: 2 / -1;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog-50);
}
.page-products .pr-dim__form {
  grid-column: 2 / -1;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}
.page-products .pr-dim__check:checked ~ .pr-dim__name {
  color: var(--c-cyan);
}
.page-products .pr-dim__check:checked ~ .pr-dim__num {
  color: var(--c-orange);
}
.page-products .pr-dim:has(.pr-dim__check:checked) {
  border-left-color: var(--c-cyan);
  background: rgba(58, 211, 192, .05);
}

/* ---------- 05 收藏与筛选 ---------- */
.page-products .pr-fav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 26px;
}
.page-products .pr-fav__path {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .pr-fav__path li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog-70);
}
.page-products .pr-fav__step {
  padding-top: 5px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-orange);
}
.page-products .pr-fav__tip {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--c-orange);
  background: var(--orange-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog-70);
}
.page-products .pr-fav__figure {
  margin: 0;
}
.page-products .pr-fav__figure img {
  border: 1px solid var(--line-soft);
}

/* ---------- 06 版本切换 ---------- */
.page-products .pr-vers {
  margin-top: 26px;
  background: var(--c-charcoal);
  border: 1px solid var(--line-soft);
}
.page-products .pr-vers__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-products .pr-vers__tabs {
  display: flex;
  border-bottom: 1px solid var(--line-soft);
}
.page-products .pr-vers__tab {
  flex: 1 1 0;
  padding: 13px 8px;
  text-align: center;
  cursor: pointer;
  font-family: var(--f-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--fog-50);
  border-right: 1px solid var(--line-soft);
  transition: color var(--t-base) var(--ease), background var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.page-products .pr-vers__tab:last-child {
  border-right: 0;
}
.page-products .pr-vers__tab span {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--fog-30);
}
.page-products .pr-vers__tab:hover {
  color: var(--c-fog);
}
.page-products .pr-vers:has(#pr-ver-1:checked) .pr-vers__tab[for="pr-ver-1"],
.page-products .pr-vers:has(#pr-ver-2:checked) .pr-vers__tab[for="pr-ver-2"],
.page-products .pr-vers:has(#pr-ver-3:checked) .pr-vers__tab[for="pr-ver-3"] {
  color: var(--c-orange);
  background: var(--orange-soft);
  box-shadow: inset 0 -2px 0 var(--c-orange);
}
.page-products .pr-vers:has(.pr-vers__input:focus-visible) .pr-vers__tabs {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}
.page-products .pr-vers__panels {
  padding: 22px 18px;
}
.page-products .pr-vers__panel {
  display: block;
}
.page-products .pr-vers__panel + .pr-vers__panel {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed var(--line-soft);
}
.page-products .pr-vers:has(#pr-ver-1:checked) .pr-vers__panel:not(.pr-vers__panel--1),
.page-products .pr-vers:has(#pr-ver-2:checked) .pr-vers__panel:not(.pr-vers__panel--2),
.page-products .pr-vers:has(#pr-ver-3:checked) .pr-vers__panel:not(.pr-vers__panel--3) {
  display: none;
}
.page-products .pr-vers__title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-fog);
}
.page-products .pr-vers__vtag {
  margin-left: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--c-cyan);
}
.page-products .pr-vers__panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog-70);
}
.page-products .pr-vers__list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--fog-50);
}

/* ---------- 07 使用场景 ---------- */
.page-products .pr-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}
.page-products .pr-scene {
  padding: 20px 18px;
  background: var(--c-ink-soft);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--c-cyan);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.page-products .pr-scene:hover {
  transform: translateY(-2px);
  border-color: var(--c-brass);
}
.page-products .pr-scene__num {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--fog-30);
}
.page-products .pr-scene__title {
  margin: 10px 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-fog);
}
.page-products .pr-scene__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fog-70);
}
.page-products .pr-scene__tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--line-soft);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-cyan);
}

/* ---------- 结尾入口 ---------- */
.page-products .pr-outro {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 22px 20px;
  background: var(--c-charcoal);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--c-orange);
}
.page-products .pr-outro .entry-bar__text {
  flex: 1 1 300px;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog-70);
}
.page-products .pr-outro .entry-bar__link {
  flex: 0 0 auto;
  display: inline-block;
  padding: 11px 20px;
  background: var(--c-orange);
  color: var(--c-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--t-base) var(--ease);
}
.page-products .pr-outro .entry-bar__link:hover {
  background: var(--c-cyan);
}
.page-products .pr-outro__more {
  margin: 18px 0 56px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--fog-50);
}
.page-products .pr-outro__more a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: border-color var(--t-base) var(--ease);
}
.page-products .pr-outro__more a:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pr-spec__row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
  .page-products .pr-step__body {
    padding-left: 62px;
  }
  .page-products .pr-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .pr-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pr-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pr-dim {
    grid-template-columns: 24px 42px 156px minmax(0, 1fr) 68px;
    row-gap: 0;
  }
  .page-products .pr-dim__num {
    grid-column: 2;
  }
  .page-products .pr-dim__name {
    grid-column: 3;
  }
  .page-products .pr-dim__desc {
    grid-column: 4;
  }
  .page-products .pr-dim__form {
    grid-column: 5;
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-products .pr-hero {
    padding: 68px 0 56px;
  }
  .page-products .pr-hero::after {
    content: "";
    position: absolute;
    right: 130px;
    bottom: -70px;
    width: 210px;
    height: 210px;
    background: var(--cyan-soft);
    transform: rotate(18deg);
    pointer-events: none;
  }
  .page-products .pr-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 52px;
    padding: 52px 0 88px;
    align-items: start;
  }
  .page-products .pr-side {
    position: sticky;
    top: 24px;
  }
  .page-products .pr-side .side-nav__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-products .pr-side .side-nav__link {
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    padding: 10px 0 10px 12px;
    position: relative;
  }
  .page-products .pr-side .side-nav__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: transparent;
    transition: background var(--t-base) var(--ease);
  }
  .page-products .pr-side .side-nav__link:hover::before {
    background: var(--c-orange);
  }
  .page-products .pr-fav {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-products .pr-lines {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .pr-line--mobile {
    grid-column: span 7;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 22px;
    align-items: start;
  }
  .page-products .pr-line--mobile .pr-line__figure {
    margin: 0;
  }
  .page-products .pr-line--panel {
    grid-column: span 5;
  }
  .page-products .pr-line--lib {
    grid-column: span 12;
  }
  .page-products .pr-kv {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-products .pr-scenes {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pr-scene-shot {
    margin-top: 32px;
  }
}

@media (max-width: 560px) {
  .page-products .pr-step__hint {
    display: none;
  }
  .page-products .pr-fav__path li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .page-products .pr-fav__step {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-line,
  .page-products .pr-scene,
  .page-products .pr-side .side-nav__link::before {
    transition: none;
  }
  .page-products .pr-line:hover,
  .page-products .pr-scene:hover {
    transform: none;
  }
}
<<<END>>>