.page-products{
  --pr-gap: clamp(16px, 3.5vw, 32px);
  --pr-section-gap: clamp(44px, 8vw, 96px);
  color: var(--og-pale);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-products > section{
  margin-top: var(--pr-section-gap);
}

.page-products > section:first-of-type{
  margin-top: clamp(20px, 4vw, 40px);
}

.page-products h1,
.page-products h2,
.page-products h3{
  font-family: var(--og-font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-products h1{
  font-size: clamp(2rem, 8vw, 3.6rem);
  line-height: 1.06;
  margin: 0.35em 0 0.5em;
}

.page-products h1 em{
  display: block;
  font-style: normal;
  color: var(--og-cyan);
}

.page-products h2{
  font-size: clamp(1.35rem, 4.6vw, 2.1rem);
  line-height: 1.18;
  margin: 0 0 0.55em;
}

.page-products h3{
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  margin: 0 0 0.4em;
}

.page-products p{
  font-family: var(--og-font-body);
  font-size: clamp(14px, 3.6vw, 16px);
  line-height: 1.75;
  color: var(--og-silver);
  margin: 0 0 1em;
  overflow-wrap: break-word;
}

.page-products a{
  color: var(--og-cyan);
}

.page-products img{
  display: block;
  max-width: 100%;
  height: auto;
}

.page-products .og-kicker{
  margin: 0 0 0.9em;
}

/* ---------- 首屏 ---------- */
.pr-hero__lede{
  max-width: 46rem;
  color: var(--og-pale);
  font-size: clamp(15px, 3.9vw, 17px);
}

.pr-hero__grid{
  display: grid;
  gap: var(--pr-gap);
  margin-top: clamp(20px, 4vw, 34px);
}

.pr-dash{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 4vw, 30px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(47,124,255,.18), transparent 62%),
    var(--og-deep);
}

.pr-dash__top{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-right: 76px;
}

.pr-dash__ver{
  font-size: clamp(2.2rem, 10vw, 3.4rem);
  line-height: 1;
  color: var(--og-pale);
  letter-spacing: 0.02em;
  margin: 0;
}

.pr-dash__sub{
  margin: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--og-cyan);
}

.pr-dash__spec{
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--og-metal);
}

.pr-dash__spec li{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--og-metal);
  font-size: 14px;
  color: var(--og-silver);
}

.pr-dash__spec strong{
  color: var(--og-pale);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.pr-dash__ring{
  position: absolute;
  top: clamp(18px, 4vw, 30px);
  right: clamp(18px, 4vw, 30px);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: conic-gradient(var(--og-acid) 0 74%, var(--og-metal) 74% 100%);
  display: grid;
  place-items: center;
}

.pr-dash__ring::before{
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--og-deep);
}

.pr-dash__ring span{
  position: relative;
  z-index: 1;
  font-family: var(--og-font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--og-acid);
}

.pr-dash__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pr-dash__note{
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--og-silver);
  padding-left: 12px;
  border-left: 2px solid var(--og-orange);
}

/* ---------- 下载前检查 ---------- */
.pr-pre__head{
  max-width: 48rem;
}

.pr-pre__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.pr-pre__item{
  padding: 16px 18px;
  background: var(--og-ink);
  border: 1px solid var(--og-metal);
  border-left: 3px solid var(--og-orange);
  clip-path: polygon(0 0, calc(100% - var(--og-cut)) 0, 100% var(--og-cut), 100% 100%, 0 100%);
}

.pr-pre__item p{
  margin: 0;
  font-size: 14px;
}

.pr-pre__num{
  display: block;
  color: var(--og-orange);
  font-size: 12px;
  letter-spacing: 0.2em;
  margin-bottom: 6px;
}

/* ---------- 适配清单 ---------- */
.pr-fit__head{
  max-width: 48rem;
}

.pr-fit__grid{
  display: grid;
  gap: var(--pr-gap);
}

.pr-fit__panel{
  padding: clamp(14px, 3.5vw, 26px);
  background: var(--og-deep);
}

.pr-fit__rows{
  list-style: none;
  margin: 0;
  padding: 0;
}

.pr-fit__rows li{
  display: grid;
  grid-template-columns: 2.4rem 1fr auto;
  align-items: center;
  gap: 6px 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--og-metal);
}

.pr-fit__rows li:last-child{
  border-bottom: 0;
}

.pr-fit__k{
  color: var(--og-metal);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.pr-fit__name{
  font-family: var(--og-font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--og-pale);
}

.pr-fit__desc{
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.7;
  color: var(--og-silver);
}

.pr-fit__foot{
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--og-metal);
  font-size: 13px;
  color: var(--og-silver);
}

/* ---------- 房间工具 ---------- */
.pr-rooms__head{
  max-width: 48rem;
}

.pr-rooms__radio{
  position: absolute;
}

.pr-rooms__tabs{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.pr-rooms__tab{
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  font-family: var(--og-font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--og-silver);
  background: var(--og-ink);
  border: 1px solid var(--og-metal);
  cursor: pointer;
  transition: color .2s var(--og-ease), background .2s var(--og-ease), border-color .2s var(--og-ease);
}

.pr-rooms__tab:hover{
  color: var(--og-pale);
  border-color: var(--og-blue);
}

.page-products #pr-tab-1:checked ~ .pr-rooms__tabs label[for="pr-tab-1"],
.page-products #pr-tab-2:checked ~ .pr-rooms__tabs label[for="pr-tab-2"],
.page-products #pr-tab-3:checked ~ .pr-rooms__tabs label[for="pr-tab-3"],
.page-products #pr-tab-4:checked ~ .pr-rooms__tabs label[for="pr-tab-4"]{
  color: var(--og-ink);
  background: var(--og-cyan);
  border-color: var(--og-cyan);
}

.page-products #pr-tab-1:focus-visible ~ .pr-rooms__tabs label[for="pr-tab-1"],
.page-products #pr-tab-2:focus-visible ~ .pr-rooms__tabs label[for="pr-tab-2"],
.page-products #pr-tab-3:focus-visible ~ .pr-rooms__tabs label[for="pr-tab-3"],
.page-products #pr-tab-4:focus-visible ~ .pr-rooms__tabs label[for="pr-tab-4"]{
  outline: 2px solid var(--og-acid);
  outline-offset: 2px;
}

.pr-rooms__panels{
  padding: clamp(16px, 4vw, 28px);
  background: var(--og-deep);
}

.pr-rooms__panel{
  display: none;
}

.pr-rooms__panel p{
  margin-bottom: 0.9em;
}

.page-products #pr-tab-1:checked ~ .pr-rooms__panels .pr-rooms__panel:nth-child(1),
.page-products #pr-tab-2:checked ~ .pr-rooms__panels .pr-rooms__panel:nth-child(2),
.page-products #pr-tab-3:checked ~ .pr-rooms__panels .pr-rooms__panel:nth-child(3),
.page-products #pr-tab-4:checked ~ .pr-rooms__panels .pr-rooms__panel:nth-child(4){
  display: block;
  animation: pr-fade .32s var(--og-ease) both;
}

@keyframes pr-fade{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: none; }
}

.pr-rooms__panel-h{
  color: var(--og-pale);
}

.pr-rooms__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.pr-rooms__list li{
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--og-silver);
}

.pr-rooms__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--og-blue);
  transform: rotate(45deg);
}

.pr-rooms__media{
  margin: var(--pr-gap) 0 0;
}

/* ---------- 安装四步 ---------- */
.pr-install__head{
  max-width: 48rem;
}

.pr-steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: pr-step;
}

.pr-steps__item details{
  background: var(--og-ink);
  border: 1px solid var(--og-metal);
  border-left: 3px solid var(--og-blue);
  clip-path: polygon(0 0, calc(100% - var(--og-cut)) 0, 100% var(--og-cut), 100% 100%, 0 100%);
}

.pr-steps__item details[open]{
  background: var(--og-deep);
  border-left-color: var(--og-cyan);
}

.pr-steps__item summary{
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--og-font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--og-pale);
}

.pr-steps__item summary::-webkit-details-marker{
  display: none;
}

.pr-steps__item summary::after{
  content: "+";
  margin-left: auto;
  font-family: var(--og-font-mono);
  font-size: 18px;
  color: var(--og-blue);
}

.pr-steps__item details[open] summary::after{
  content: "−";
  color: var(--og-cyan);
}

.pr-steps__num{
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--og-orange);
}

.pr-steps__title{
  flex: 1 1 auto;
  min-width: 0;
}

.pr-steps__body{
  padding: 0 18px 16px 18px;
}

.pr-steps__body p{
  margin: 0;
  font-size: 13.5px;
}

/* ---------- 网络诊断 ---------- */
.pr-diag__grid{
  display: grid;
  gap: var(--pr-gap);
  align-items: start;
}

.pr-diag__text h2{
  margin-top: 0;
}

.pr-diag__stats{
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pr-diag__stat{
  padding: 12px 14px;
  background: var(--og-deep);
  border-left: 2px solid var(--og-acid);
}

.pr-diag__stat > span{
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--og-acid);
  margin-bottom: 4px;
}

.pr-diag__stat strong{
  display: block;
  font-family: var(--og-font-body);
  font-size: 14.5px;
  color: var(--og-pale);
  margin-bottom: 4px;
}

.pr-diag__stat p{
  margin: 0;
  font-size: 13px;
}

.pr-diag__note{
  padding: 12px 14px;
  background: rgba(47,124,255,.1);
  border-left: 2px solid var(--og-blue);
  font-size: 13.5px;
  color: var(--og-pale);
}

/* ---------- 版本比对 ---------- */
.pr-ver__panel{
  padding: clamp(18px, 4.5vw, 34px);
  background:
    radial-gradient(90% 100% at 0% 0%, rgba(15,76,76,.85), transparent 70%),
    var(--og-deep);
}

.pr-ver__rows{
  display: grid;
  gap: 8px;
  margin: 0 0 1.1em;
}

.pr-ver__row{
  display: grid;
  gap: 2px;
  padding: 11px 14px;
  background: rgba(7,9,15,.55);
  border: 1px solid var(--og-metal);
}

.pr-ver__row span{
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--og-cyan);
}

.pr-ver__row strong{
  font-family: var(--og-font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--og-pale);
}

.pr-ver__row:nth-child(2) span{
  color: var(--og-orange);
}

.pr-ver__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 本地支持 ---------- */
.pr-local__grid{
  display: grid;
  gap: var(--pr-gap);
  align-items: start;
}

.pr-local__list{
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  display: grid;
  gap: 9px;
}

.pr-local__list li{
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 10px;
  align-items: baseline;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--og-metal);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--og-silver);
}

.pr-local__list span{
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--og-orange);
}

.pr-local__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 1.1em;
}

.pr-local__contact{
  padding-top: 12px;
  border-top: 1px dashed var(--og-metal);
  font-size: 13px;
  color: var(--og-silver);
}

.pr-local__contact .og-mono{
  color: var(--og-pale);
  letter-spacing: 0.06em;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px){
  .pr-hero__grid{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .pr-hero__media{
    align-self: stretch;
  }

  .pr-pre__list{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pr-fit__grid{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .pr-fit__rows li{
    grid-template-columns: 2.6rem minmax(6rem, 0.7fr) auto minmax(0, 1.6fr);
  }

  .pr-fit__desc{
    grid-column: auto;
  }

  .pr-diag__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .pr-diag__stats{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pr-local__grid{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .pr-rooms__media{
    margin-top: var(--pr-gap);
  }
}

@media (min-width: 1080px){
  .pr-hero__grid{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: clamp(20px, 2.4vw, 36px);
  }

  .pr-dash__ver{
    font-size: 3.6rem;
  }

  .pr-ver__rows{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pr-steps{
    gap: 14px;
  }

  .pr-steps__item summary{
    padding: 17px 22px;
  }

  .pr-steps__body{
    padding: 0 22px 18px 22px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products *{
    animation: none !important;
    transition: none !important;
  }
}