/* ================= 体验中心 · 页面专属样式 ================= */
.page-products{
  --pc-pad: clamp(56px, 7.5vw, 118px);
  --pc-gap: clamp(24px, 3.6vw, 56px);
  background: var(--abyss);
  color: var(--limestone);
}

/* ---------- 首屏 ---------- */
.page-products .pc-hero{
  padding-block: clamp(24px, 3.4vw, 46px) clamp(40px, 5.4vw, 76px);
}
.page-products .pc-frame{
  position: relative;
  margin-top: clamp(18px, 2.4vw, 32px);
  padding: clamp(28px, 5vw, 68px) clamp(20px, 4.4vw, 68px) clamp(32px, 5.4vw, 74px);
  background:
    linear-gradient(158deg, rgba(22,68,60,.62) 0%, rgba(15,46,42,.32) 44%, rgba(10,26,28,.1) 100%),
    var(--abyss);
  border: 1px solid var(--line-strong);
  overflow: hidden;
}
.page-products .pc-frame::after{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 62px 62px;
  opacity: .75;
  -webkit-mask-image: radial-gradient(118% 92% at 82% 8%, #000 0%, transparent 74%);
  mask-image: radial-gradient(118% 92% at 82% 8%, #000 0%, transparent 74%);
}
.page-products .pc-tick{
  position: absolute;
  width: 26px;
  height: 26px;
  pointer-events: none;
  z-index: 2;
}
.page-products .pc-tick--tl{
  top: 7px;
  left: 7px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}
.page-products .pc-tick--br{
  bottom: 7px;
  right: 7px;
  border-bottom: 2px solid var(--gold);
  border-right: 2px solid var(--gold);
}
.page-products .pc-kicker{
  position: relative;
  margin: 0;
  z-index: 2;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
}
.page-products .pc-title{
  position: relative;
  z-index: 2;
  margin: clamp(14px, 2vw, 26px) 0 0;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(38px, 8.2vw, 104px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--limestone);
}
.page-products .pc-title span{
  display: block;
  color: var(--light-teal);
}
.page-products .pc-lead{
  position: relative;
  z-index: 2;
  max-width: 32em;
  margin: clamp(20px, 2.6vw, 32px) 0 0;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.85;
  color: var(--limestone);
  opacity: .9;
}
.page-products .pc-cta{
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 40px);
}
.page-products .pc-cta--end{
  margin-top: clamp(20px, 2.6vw, 32px);
}

/* 首屏数据条 */
.page-products .pc-stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 3.6vw, 48px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pc-stats li{
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px clamp(14px, 2vw, 26px);
  background: var(--abyss);
}
.page-products .pc-stats__num{
  font-size: clamp(25px, 3.2vw, 38px);
  line-height: 1;
  color: var(--gold);
  letter-spacing: .01em;
}
.page-products .pc-stats__txt{
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}
@media (min-width: 780px){
  .page-products .pc-stats{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 章节目录条 ---------- */
.page-products .pc-subnav{
  position: sticky;
  top: var(--bar-h);
  z-index: 20;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(10,26,28,.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.page-products .pc-subnav__in{
  display: flex;
  gap: clamp(16px, 2.4vw, 34px);
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-products .pc-subnav__in::-webkit-scrollbar{ display: none; }
.page-products .pc-subnav a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding-bottom: 3px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-products .pc-subnav a:hover,
.page-products .pc-subnav a:focus-visible{
  color: var(--limestone);
  border-bottom-color: var(--vermilion);
}
.page-products .pc-subnav .mono{
  color: var(--gold);
  font-size: 11px;
  letter-spacing: .1em;
}

/* ---------- 章节通用 ---------- */
.page-products .pc-sec{
  padding-block: var(--pc-pad);
  scroll-margin-top: calc(var(--bar-h) + 56px);
}
.page-products .pc-note{
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-products .pc-fig{
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--teal-deep);
  overflow: hidden;
}
.page-products .pc-fig--16x9{ aspect-ratio: 16 / 9; }
.page-products .pc-fig--3x2{ aspect-ratio: 3 / 2; }
.page-products .pc-fig--14x9{ aspect-ratio: 14 / 9; }
.page-products .pc-fig--2x1{ aspect-ratio: 2 / 1; }
.page-products .pc-fig img{
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}
.page-products .pc-fig .media__tag{
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--limestone);
  background: rgba(10,26,28,.82);
  border-top: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
}
.page-products .pc-fig + .pc-fig,
.page-products .pc-methods + .pc-fig,
.page-products .pc-overview + .pc-fig{
  margin-top: clamp(28px, 4vw, 56px);
}

/* ---------- 01 总览 ---------- */
.page-products .pc-overview{
  margin-top: clamp(28px, 4vw, 56px);
  align-items: start;
}
.page-products .pc-cards{
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pc-card{
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 14px;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--teal-deep);
}
.page-products .pc-card__num{
  grid-row: span 2;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}
.page-products .pc-card h3{
  margin: 0;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--limestone);
}
.page-products .pc-card p{
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 02 三种定位方式 ---------- */
.page-products .pc-methods{
  margin-top: clamp(28px, 4vw, 54px);
  border-bottom: 1px solid var(--line);
}
.page-products .pc-method{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  padding-block: clamp(26px, 3.6vw, 46px);
  border-top: 1px solid var(--line);
}
.page-products .pc-method__head{
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.page-products .pc-method__num{
  flex: none;
  padding: 4px 8px;
  font-size: 11px;
  line-height: 1;
  letter-spacing: .16em;
  color: var(--gold);
  border: 1px solid var(--gold-line);
}
.page-products .pc-method__title{
  margin: 0;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--limestone);
}
.page-products .pc-method__desc{
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--limestone);
  opacity: .88;
}
.page-products .pc-method__steps{
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pmstep;
}
.page-products .pc-method__steps li{
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
  counter-increment: pmstep;
}
.page-products .pc-method__steps li::before{
  content: counter(pmstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--live);
}
.page-products .pc-method__note{
  align-self: start;
  margin: 0;
  padding-left: clamp(14px, 2vw, 24px);
  border-left: 1px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
@media (min-width: 900px){
  .page-products .pc-method{
    grid-template-columns: minmax(0, 1fr) minmax(0, .42fr);
    column-gap: clamp(28px, 4vw, 76px);
  }
}
@media (max-width: 899px){
  .page-products .pc-method__note{
    padding-left: 0;
    padding-top: 14px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

/* ---------- 03 两端使用 ---------- */
.page-products .pc-dual{
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 52px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pc-dual__item{
  padding: clamp(22px, 3vw, 36px);
  background: var(--teal-deep);
}
.page-products .pc-dual__item h3{
  margin: 0 0 12px;
  font-size: clamp(18px, 1.9vw, 23px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--limestone);
}
.page-products .pc-dual__item > p{
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}
@media (min-width: 900px){
  .page-products .pc-dual{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 04 导出与反馈 ---------- */
.page-products .pc-scroll{
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(268px, 84%);
  gap: 1px;
  margin-top: clamp(28px, 4vw, 52px);
  padding-bottom: 2px;
  overflow-x: auto;
  background: var(--line);
  border: 1px solid var(--line);
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}
.page-products .pc-scroll:focus-visible{
  outline: 1px solid var(--vermilion);
  outline-offset: 3px;
}
.page-products .pc-format{
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--abyss);
  scroll-snap-align: start;
  border-top: 2px solid transparent;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}
.page-products .pc-format:hover,
.page-products .pc-format:focus-within{
  background: var(--teal-deep);
  border-top-color: var(--vermilion);
}
.page-products .pc-format__head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.page-products .pc-format__id{
  font-size: 20px;
  letter-spacing: .14em;
  color: var(--gold);
}
.page-products .pc-format__title{
  margin: 0;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--limestone);
}
.page-products .pc-format__desc{
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
.page-products .pc-format__fields{
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .pc-format__fields li{
  padding: 4px 9px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--light-teal);
  border: 1px solid var(--line-strong);
}
.page-products .pc-format__meta{
  margin: auto 0 0;
  padding-top: 12px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gold);
  border-top: 1px solid var(--line);
}
@media (min-width: 880px){
  .page-products .pc-scroll{
    grid-auto-columns: minmax(0, 1fr);
    overflow-x: visible;
  }
}

.page-products .pc-feedback{
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(28px, 4vw, 52px);
  padding: clamp(24px, 3.4vw, 44px);
  background: rgba(10,26,28,.6);
  border: 1px solid var(--line-strong);
}
.page-products .pc-feedback__title{
  margin: 0 0 10px;
  font-size: clamp(18px, 1.9vw, 23px);
  font-weight: 700;
  color: var(--limestone);
}
.page-products .pc-feedback__main > p{
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}
.page-products .pc-feedback__list{
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.page-products .pc-feedback__list li{
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--limestone);
  opacity: .9;
}
.page-products .pc-feedback__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 1px;
  background: var(--vermilion);
}
.page-products .pc-feedback__list .mono{
  margin-right: 6px;
  font-size: 12px;
  color: var(--gold);
}
.page-products .pc-feedback__side{
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}
.page-products .pc-feedback__linkline{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-products .pc-feedback__linkline a{
  color: var(--light-teal);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}
.page-products .pc-feedback__linkline a:hover{
  border-bottom-color: var(--vermilion);
}
@media (min-width: 900px){
  .page-products .pc-feedback{
    grid-template-columns: minmax(0, 1fr) minmax(0, .45fr);
    align-items: start;
  }
}

/* ---------- 05 使用场景 ---------- */
.page-products .pc-scenes{
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 52px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pc-scene{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--abyss);
}
.page-products .pc-scene__num{
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}
.page-products .pc-scene h3{
  margin: 0;
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--limestone);
}
.page-products .pc-scene p{
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
.page-products .pc-scene a{
  color: var(--light-teal);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}
.page-products .pc-scene a:hover{
  border-bottom-color: var(--vermilion);
}
@media (min-width: 760px){
  .page-products .pc-scenes{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1120px){
  .page-products .pc-scenes{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 06 版本脉络 ---------- */
.page-products .pc-timeline{
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.page-products .pc-node{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(24px, 3vw, 36px) clamp(16px, 2vw, 28px);
  background: var(--teal-deep);
}
.page-products .pc-node::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: var(--gold-line);
}
.page-products .pc-node:first-child::before{ background: var(--gold); }
.page-products .pc-node__ver{
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
}
.page-products .pc-node__title{
  margin: 0;
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--limestone);
}
.page-products .pc-node__txt{
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
@media (min-width: 860px){
  .page-products .pc-timeline{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 07 三步上手 ---------- */
.page-products .pc-steps{
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin: clamp(28px, 4vw, 54px) 0 0;
  padding: 0;
  list-style: none;
}
.page-products .pc-step{
  position: relative;
  padding-top: 24px;
  border-top: 2px solid var(--line-strong);
}
.page-products .pc-step::before{
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--vermilion);
  transition: width .3s var(--ease);
}
.page-products .pc-step.is-active::before{ width: 34%; }
.page-products .pc-step:hover::before{ width: 100%; }
.page-products .pc-step__num{
  display: block;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}
.page-products .pc-step h3{
  margin: 10px 0 0;
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.4;
}
.page-products .pc-step h3 a{
  color: var(--limestone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.page-products .pc-step h3 a:hover,
.page-products .pc-step h3 a:focus-visible{
  color: var(--light-teal);
  border-bottom-color: var(--vermilion);
}
.page-products .pc-step p{
  margin: 10px 0 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}
@media (min-width: 820px){
  .page-products .pc-steps{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce){
  .page-products .pc-step::before,
  .page-products .pc-format,
  .page-products .pc-subnav a{
    transition: none;
  }
  .page-products .pc-step:hover::before,
  .page-products .pc-step.is-active::before{ width: 100%; }
}
<<<END>>>