.page-products{
  --pd-notch: 22px;
  --pd-gap: clamp(14px, 2.6vw, 28px);
  background: var(--ink-900);
  color: var(--text-dark);
  font-family: var(--font-display);
  overflow-x: clip;
}

.page-products .pd-wrap{
  max-width: var(--sheet);
  margin-inline: auto;
  padding-inline: var(--edge);
}

.page-products .pd-sec{
  padding-block: clamp(44px, 6.4vw, 92px);
  border-top: 1px solid var(--line-soft);
}

.page-products .pd-sec--alt{
  background: var(--ink-800);
}

.page-products .pd-sec--paper{
  background: var(--paper);
  color: var(--text-on-paper);
}

.page-products .pd-kicker{
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-soft);
  margin: 0 0 14px;
}

.page-products .pd-sec--paper .pd-kicker{
  color: rgba(16,25,34,.52);
}

.page-products .pd-h2{
  font-size: clamp(23px, 3.5vw, 38px);
  font-weight: 300;
  letter-spacing: .04em;
  line-height: 1.24;
  margin: 0 0 16px;
  color: inherit;
}

.page-products h3{
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 400;
  letter-spacing: .03em;
  line-height: 1.4;
  margin: 0 0 10px;
  color: inherit;
}

.page-products p{
  margin: 0 0 1.1em;
  line-height: 1.8;
}

.page-products .pd-lead{
  font-size: 16px;
  line-height: 1.85;
  max-width: 34em;
  color: inherit;
  opacity: .9;
}

.page-products .pd-lead--sm{
  font-size: 15px;
  max-width: 38em;
  opacity: .8;
}

.page-products .pd-note{
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 48em;
  margin-top: 18px;
}

.page-products .pd-sec--paper .pd-note{
  color: rgba(16,25,34,.58);
}

/* ---------- hero ---------- */
.page-products .pd-hero{
  position: relative;
  padding-block: clamp(28px, 4.4vw, 56px) clamp(44px, 6vw, 88px);
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(79,227,208,.14), transparent 62%),
    repeating-linear-gradient(0deg, rgba(214,228,236,.04) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(214,228,236,.04) 0 1px, transparent 1px 48px),
    var(--ink-900);
}

.page-products .breadcrumb__link{
  color: var(--cyan-soft);
}

.page-products .breadcrumb__current{
  color: var(--muted);
}

.page-products .pd-hero__grid{
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(24px, 3.4vw, 44px);
  align-items: end;
}

.page-products .pd-hero__copy h1{
  font-size: clamp(31px, 6.2vw, 72px);
  font-weight: 300;
  letter-spacing: .045em;
  line-height: 1.1;
  margin: 0 0 20px;
  color: var(--text-dark);
}

.page-products .pd-hero__meta{
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
  margin: 0 0 22px;
}

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

/* ---------- 四栏面板缩略 ---------- */
.page-products .pd-board{
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(11,42,66,.94), rgba(30,40,51,.76));
  padding: clamp(14px, 2.2vw, 20px);
  backdrop-filter: blur(6px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pd-notch)), calc(100% - var(--pd-notch)) 100%, 0 100%);
}

.page-products .pd-board__head{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-products .pd-board__hint{
  color: var(--muted);
  letter-spacing: .1em;
}

.page-products .pd-board__cols{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
}

.page-products .pd-col{
  border: 1px solid var(--line-soft);
  background: rgba(5,25,43,.62);
  padding: 8px 7px 12px;
}

.page-products .pd-col__id{
  display: block;
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-products .pd-col__meta{
  display: block;
  font-size: 10px;
  line-height: 1.4;
  color: var(--muted);
  margin: 4px 0 12px;
  min-height: 2.8em;
}

.page-products .pd-col__bars i{
  display: block;
  height: 5px;
  margin-bottom: 7px;
  background: var(--line-strong);
}

.page-products .pd-col__bars i:nth-child(1){ width: 86%; background: var(--cyan); }
.page-products .pd-col__bars i:nth-child(2){ width: 52%; }
.page-products .pd-col__bars i:nth-child(3){ width: 70%; background: rgba(255,122,89,.72); }
.page-products .pd-col__bars i:nth-child(4){ width: 38%; }
.page-products .pd-col__bars i:nth-child(5){ width: 62%; }

.page-products .pd-board__foot{
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--muted);
  margin: 14px 0 0;
}

/* ---------- 场景 ---------- */
.page-products .pd-scenes{
  display: grid;
  gap: var(--pd-gap);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-products .pd-scene{
  border-left: 2px solid var(--line-strong);
  padding: 4px 0 4px 18px;
}

.page-products .pd-scene__n{
  display: inline-block;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--coral);
  margin-bottom: 8px;
}

.page-products .pd-scene p{
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dark);
  opacity: .84;
  margin: 0;
}

/* ---------- 图片 ---------- */
.page-products .pd-fig{
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .pd-fig img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-700);
  filter: saturate(.86) contrast(1.02);
}

.page-products .pd-fig--square img{
  aspect-ratio: 1 / 1;
}

.page-products .pd-fig--port img{
  aspect-ratio: 5 / 7;
}

.page-products .pd-sec--paper .pd-fig img{
  border-color: rgba(16,25,34,.18);
}

.page-products .pd-fig__cap{
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
  margin-top: 10px;
}

.page-products .pd-sec--paper .pd-fig__cap{
  color: rgba(16,25,34,.55);
}

/* ---------- 三层切换 ---------- */
.page-products .pd-layers{
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .pd-layer-input{
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  clip-path: inset(50%);
  overflow: hidden;
}

.page-products .pd-layer-tab{
  display: inline-block;
  padding: 9px 16px;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--text-dark);
  border: 1px solid var(--line);
  background: rgba(11,42,66,.5);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-products .pd-layer-tab:hover{
  border-color: var(--line-strong);
  color: var(--cyan-soft);
}

.page-products #pd-layer-1:checked + .pd-layer-tab,
.page-products #pd-layer-2:checked + .pd-layer-tab,
.page-products #pd-layer-3:checked + .pd-layer-tab{
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products #pd-layer-1:focus-visible + .pd-layer-tab,
.page-products #pd-layer-2:focus-visible + .pd-layer-tab,
.page-products #pd-layer-3:focus-visible + .pd-layer-tab{
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-products .pd-layer-panels{
  flex: 0 0 100%;
  margin-top: 16px;
}

.page-products .pd-layer-panel{
  display: none;
  padding: clamp(18px, 3vw, 30px);
  background: linear-gradient(180deg, var(--ink-700), var(--ink-800));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pd-notch)), calc(100% - var(--pd-notch)) 100%, 0 100%);
}

.page-products #pd-layer-1:checked ~ .pd-layer-panels > [data-layer="1"],
.page-products #pd-layer-2:checked ~ .pd-layer-panels > [data-layer="2"],
.page-products #pd-layer-3:checked ~ .pd-layer-panels > [data-layer="3"]{
  display: block;
}

.page-products .pd-layer-panel p{
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dark);
  opacity: .84;
  max-width: 40em;
}

.page-products .pd-fields{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .pd-field{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
}

.page-products .pd-field__name{
  color: var(--text-dark);
}

.page-products .pd-field__val{
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan-soft);
  white-space: nowrap;
}

/* ---------- 覆盖清单 ---------- */
.page-products .pd-cover__grid{
  display: grid;
  gap: var(--pd-gap);
  margin-top: clamp(22px, 3.2vw, 36px);
}

.page-products .pd-proj{
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(16,25,34,.16);
}

.page-products .pd-proj__row{
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(16,25,34,.14);
}

.page-products .pd-proj__k{
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--ink-800);
  font-weight: 500;
}

.page-products .pd-proj__v{
  font-size: 14px;
  line-height: 1.75;
  color: rgba(16,25,34,.82);
}

/* ---------- 并排筛选 ---------- */
.page-products .pd-filter{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  position: relative;
}

.page-products .pd-filter__input{
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  clip-path: inset(50%);
  overflow: hidden;
}

.page-products .pd-filter__chip{
  display: inline-block;
  padding: 7px 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .pd-filter__chip:hover{
  color: var(--cyan-soft);
  border-color: var(--line-strong);
}

.page-products #pd-f-all:checked + .pd-filter__chip,
.page-products #pd-f-fb:checked + .pd-filter__chip,
.page-products #pd-f-bk:checked + .pd-filter__chip,
.page-products #pd-f-tn:checked + .pd-filter__chip{
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(79,227,208,.1);
}

.page-products #pd-f-all:focus-visible + .pd-filter__chip,
.page-products #pd-f-fb:focus-visible + .pd-filter__chip,
.page-products #pd-f-bk:focus-visible + .pd-filter__chip,
.page-products #pd-f-tn:focus-visible + .pd-filter__chip{
  outline: 2px solid var(--cyan-soft);
  outline-offset: 2px;
}

.page-products .pd-filter__list{
  flex: 0 0 100%;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-products #pd-f-fb:checked ~ .pd-filter__list .pd-row:not([data-g="fb"]),
.page-products #pd-f-bk:checked ~ .pd-filter__list .pd-row:not([data-g="bk"]),
.page-products #pd-f-tn:checked ~ .pd-filter__list .pd-row:not([data-g="tn"]){
  display: none;
}

.page-products .pd-row{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pd-row__id{
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .pd-row__name{
  font-size: 14px;
  color: var(--text-dark);
}

.page-products .pd-row__meta{
  grid-column: 2;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

/* ---------- 版本对照 ---------- */
.page-products .pd-diffblock{
  display: grid;
  gap: var(--pd-gap);
  margin-top: clamp(30px, 4.4vw, 56px);
}

.page-products .pd-diffblock__text p{
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dark);
  opacity: .84;
  max-width: 36em;
}

.page-products .pd-diff{
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-products .pd-diff__col{
  background: var(--ink-700);
  border: 1px solid var(--line-soft);
  padding: 16px 18px;
}

.page-products .pd-diff__col--new{
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(30,40,51,.96), rgba(11,42,66,.9));
}

.page-products .pd-diff__h{
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
  margin: 0 0 10px;
}

.page-products .pd-diff__list{
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-diff__item{
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-dark);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pd-diff__item:last-child{
  border-bottom: 0;
}

.page-products .pd-diff__item .mono{
  color: var(--muted);
}

.page-products .pd-diff__item.is-diff{
  border-left: 2px solid var(--coral);
  padding-left: 10px;
  margin-left: -12px;
}

.page-products .pd-diff__item.is-diff .mono{
  color: var(--coral);
}

/* ---------- 下载资料 ---------- */
.page-products .pd-dl{
  display: grid;
  gap: var(--pd-gap);
  margin-top: clamp(22px, 3.2vw, 36px);
}

.page-products .pd-dl__cards{
  display: grid;
  gap: 14px;
}

.page-products .pd-dl__card{
  background: var(--paper);
  color: var(--text-on-paper);
  border: 1px solid rgba(16,25,34,.16);
  padding: clamp(18px, 2.6vw, 26px);
  box-shadow: 6px 6px 0 rgba(5,25,43,.5);
}

.page-products .pd-dl__card h3{
  color: var(--text-on-paper);
}

.page-products .pd-dl__tag{
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--coral);
  margin: 0 0 10px;
}

.page-products .pd-dl__card p{
  font-size: 14px;
  line-height: 1.78;
  color: rgba(16,25,34,.82);
  margin: 0 0 .9em;
}

.page-products .pd-dl__use{
  font-size: 12.5px;
  color: rgba(16,25,34,.6);
  border-top: 1px solid rgba(16,25,34,.14);
  padding-top: 10px;
  margin: 0;
}

/* ---------- 步骤条 ---------- */
.page-products .pd-steps{
  list-style: none;
  margin: clamp(22px, 3.2vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: pdstep;
}

.page-products .pd-step{
  border-top: 2px solid rgba(16,25,34,.2);
  padding-top: 14px;
}

.page-products .pd-step__n{
  display: block;
  font-size: 11px;
  letter-spacing: .18em;
  color: rgba(16,25,34,.5);
  margin-bottom: 8px;
}

.page-products .pd-step__t{
  font-size: 17px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--text-on-paper);
}

.page-products .pd-step__d{
  font-size: 14px;
  line-height: 1.75;
  color: rgba(16,25,34,.78);
  margin: 0;
}

.page-products .pd-step--now{
  border-top-color: var(--coral);
}

.page-products .pd-step--now .pd-step__n{
  color: var(--coral);
}

/* ---------- 适用人群 ---------- */
.page-products .pd-aud{
  display: grid;
  gap: var(--pd-gap);
  margin-top: clamp(22px, 3.2vw, 36px);
}

.page-products .pd-aud__item{
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-strong);
  background: rgba(11,42,66,.46);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-products .pd-aud__tag{
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--coral);
  margin: 0 0 10px;
}

.page-products .pd-aud__item p{
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dark);
  opacity: .84;
}

.page-products .pd-aud__link{
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
}

.page-products .pd-aud__link:hover{
  color: var(--cyan-soft);
}

/* ---------- 结尾 ---------- */
.page-products .pd-cta{
  margin-top: clamp(30px, 4.4vw, 56px);
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(79,227,208,.1), rgba(11,42,66,.7) 58%);
}

.page-products .pd-cta__t{
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 300;
  letter-spacing: .03em;
  line-height: 1.5;
  color: var(--text-dark);
  margin: 0 0 10px;
  max-width: 26em;
}

.page-products .pd-cta__d{
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 40em;
  margin: 0 0 18px;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px){
  .page-products .pd-scenes{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .pd-dl__cards{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .pd-aud{
    grid-template-columns: repeat(3, 1fr);
  }
  .page-products .pd-steps{
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .page-products .pd-diff{
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-products .pd-row{
    grid-template-columns: 76px 1fr auto;
  }
  .page-products .pd-row__meta{
    grid-column: auto;
    justify-self: end;
  }
  .page-products .pd-proj__row{
    grid-template-columns: 104px 1fr;
    align-items: baseline;
  }
}

@media (min-width: 900px){
  .page-products .pd-hero__grid{
    grid-template-columns: 1.04fr .96fr;
  }
  .page-products .pd-cover__grid{
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }
  .page-products .pd-diffblock{
    grid-template-columns: .86fr 1.14fr;
    align-items: start;
  }
  .page-products .pd-dl{
    grid-template-columns: .42fr 1fr;
    align-items: start;
  }
}

@media (min-width: 1080px){
  .page-products .pd-board__cols{
    gap: 10px;
  }
  .page-products .pd-hero__copy h1{
    letter-spacing: .05em;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products .pd-layer-tab,
  .page-products .pd-filter__chip,
  .page-products .pd-aud__link{
    transition: none;
  }
}
<<<END>>>