.page-products{
  --prod-tint: var(--ice-guide);
  --prod-tint-soft: rgba(127,200,240,.14);
  --prod-gridline: rgba(242,237,227,.07);
  --prod-paper-line: rgba(8,19,15,.12);
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: clip;
}

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

/* ---------- 首屏：海报式分层 ---------- */
.page-products .prod-hero{
  position:relative;
  background:
    radial-gradient(120% 90% at 88% -12%, rgba(47,227,206,.18), transparent 62%),
    repeating-linear-gradient(90deg, var(--prod-gridline) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--prod-gridline) 0 1px, transparent 1px 72px),
    var(--ink-900);
  border-bottom:1px solid var(--line);
}

.page-products .prod-hero::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:min(46%,520px);
  height:2px;
  background:linear-gradient(90deg, var(--cyan-electric), transparent);
}

.page-products .prod-hero__inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(18px,3.6vw,32px) var(--pad) clamp(30px,6vw,64px);
}

.page-products .breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:.8rem;
  letter-spacing:.06em;
  color:var(--neutral-400);
  margin-bottom:clamp(20px,4vw,38px);
}

.page-products .breadcrumbs a{
  color:var(--neutral-400);
  text-decoration:none;
  border-bottom:1px solid transparent;
}

.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible{
  color:var(--cyan-electric);
  border-bottom-color:var(--cyan-electric);
}

.page-products .prod-hero__grid{
  display:grid;
  gap:clamp(24px,4vw,44px);
  align-items:start;
}

.page-products .kicker{
  color:var(--cyan-electric);
  margin:0 0 14px;
}

.page-products .prod-hero h1{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(2rem,7vw,4.3rem);
  line-height:1.08;
  letter-spacing:-.03em;
  margin:0 0 18px;
  max-width:22ch;
}

.page-products .lede{
  font-size:clamp(1rem,1.6vw,1.1rem);
  line-height:1.8;
  color:var(--paper-dim);
  max-width:62ch;
  margin:0 0 clamp(20px,3vw,30px);
}

.page-products .prod-stats{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:.86rem;
  color:var(--neutral-400);
}

.page-products .prod-stats li{
  display:flex;
  align-items:baseline;
  gap:8px;
}

.page-products .prod-stats .data-num{
  font-family:var(--font-data);
  font-weight:700;
  font-size:1.32rem;
  color:var(--cyan-electric);
  letter-spacing:-.02em;
}

/* 索引玻璃层 */
.page-products .prod-index{
  padding:clamp(18px,3vw,26px);
  border-radius:var(--r-lg);
  border:1px solid var(--line-strong);
  background:var(--glass-layer);
  backdrop-filter:blur(8px);
}

.page-products .prod-index .index-label{
  color:var(--cyan-electric);
  margin:0 0 16px;
}

.page-products .prod-index__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
  counter-reset:none;
}

.page-products .prod-index__list a{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:9px 6px;
  font-size:.94rem;
  color:var(--paper-dim);
  text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color .2s var(--ease), padding-left .2s var(--ease);
}

.page-products .prod-index__list a:hover,
.page-products .prod-index__list a:focus-visible,
.page-products .prod-index__list a.is-active{
  color:var(--cyan-electric);
  padding-left:12px;
}

.page-products .prod-index__num{
  font-family:var(--font-data);
  font-size:.76rem;
  letter-spacing:.08em;
  color:var(--neutral-400);
}

.page-products .prod-index__list a:hover .prod-index__num,
.page-products .prod-index__list a.is-active .prod-index__num{
  color:var(--cyan-deep);
}

/* ---------- 章节骨架 ---------- */
.page-products .prod-sec{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(34px,6vw,72px) var(--pad);
}

.page-products .prod-sec--paper{
  background:var(--paper);
  color:var(--ink-900);
  border-radius:var(--r-lg);
  margin-block:clamp(18px,3vw,30px);
}

.page-products .prod-sec--ink{
  color:var(--paper);
}

.page-products .prod-sec--tint{
  background:
    linear-gradient(180deg, rgba(127,200,240,.06), transparent 40%),
    var(--ink-700);
  border-radius:var(--r-lg);
  border:1px solid var(--line);
}

.page-products .prod-sec__head{
  margin-bottom:clamp(22px,4vw,38px);
  max-width:70ch;
}

.page-products .prod-sec--paper .index-label{
  color:var(--cyan-deep);
}

.page-products .prod-sec--ink .index-label{
  color:var(--cyan-electric);
}

.page-products .sect-title{
  margin:0 0 10px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(1.5rem,3.4vw,2.4rem);
  line-height:1.24;
  letter-spacing:-.02em;
  padding-left:16px;
  border-left:3px solid var(--cyan-electric);
}

.page-products .prod-sec__note{
  margin:0;
  padding-left:16px;
  font-size:.96rem;
  line-height:1.8;
  color:var(--neutral-400);
}

.page-products .prod-sec--paper .prod-sec__note{
  color:#4B5751;
}

.page-products .prod-sec__foot{
  margin:18px 0 0;
  font-size:.84rem;
  color:#4B5751;
}

/* ---------- 表格 ---------- */
.page-products .table-wrap{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}

.page-products .prod-table{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:.92rem;
}

.page-products .prod-table__caption{
  text-align:left;
  font-size:.78rem;
  letter-spacing:.08em;
  color:var(--neutral-400);
  padding-bottom:10px;
}

.page-products .prod-sec--paper .prod-table__caption{
  color:#5C665F;
}

.page-products .prod-table th,
.page-products .prod-table td{
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
  line-height:1.7;
}

.page-products .prod-table thead th{
  font-size:.78rem;
  letter-spacing:.1em;
  font-weight:600;
  white-space:nowrap;
}

.page-products .prod-table tbody th{
  font-weight:600;
}

.page-products .prod-table tbody tr:nth-child(even){
  background:rgba(255,255,255,.03);
}

.page-products .prod-sec--paper .prod-table th,
.page-products .prod-sec--paper .prod-table td{
  border-bottom:1px solid var(--prod-paper-line);
}

.page-products .prod-sec--paper .prod-table thead th{
  border-bottom:2px solid var(--ink-900);
}

.page-products .prod-sec--paper .prod-table tbody tr:nth-child(even){
  background:rgba(8,19,15,.045);
}

.page-products .prod-sec--ink .prod-table th,
.page-products .prod-sec--ink .prod-table td{
  border-bottom:1px solid var(--line);
}

.page-products .prod-sec--ink .prod-table thead th{
  border-bottom:2px solid var(--cyan-electric);
  color:var(--cyan-electric);
}

.page-products .prod-table a{
  color:var(--cyan-deep);
  text-decoration:none;
  border-bottom:1px solid rgba(15,179,166,.4);
}

.page-products .prod-sec--ink .prod-table a{
  color:var(--cyan-electric);
  border-bottom-color:var(--line-strong);
}

.page-products .prod-table a:hover,
.page-products .prod-table a:focus-visible{
  border-bottom-color:currentColor;
}

/* ---------- 图片容器 ---------- */
.page-products .prod-media{
  margin:0 0 clamp(22px,4vw,34px);
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--ink-700);
}

.page-products .prod-media img{
  width:100%;
  height:auto;
  object-fit:cover;
  aspect-ratio:16 / 9;
}

.page-products .prod-media--tablet img{
  aspect-ratio:4 / 3;
}

.page-products .prod-media--steps img{
  aspect-ratio:3 / 2;
}

.page-products .media-caption{
  padding:10px 14px 12px;
  font-size:.8rem;
  line-height:1.6;
  color:var(--neutral-400);
  border-top:1px solid var(--line);
}

.page-products .prod-sec--paper .prod-media{
  border-color:var(--prod-paper-line);
  background:#E4DDD0;
}

.page-products .prod-sec--paper .media-caption{
  color:#4B5751;
  border-top-color:var(--prod-paper-line);
}

/* ---------- 设备筛选与卡片 ---------- */
.page-products .prod-chipset{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:clamp(18px,3vw,26px);
}

.page-products .prod-chipset .chip{
  cursor:pointer;
  font-size:.86rem;
  letter-spacing:.04em;
}

.page-products .prod-devices{
  display:grid;
  gap:16px;
}

.page-products .prod-device{
  padding:clamp(18px,3vw,26px);
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--ink-700);
  border-left:3px solid var(--cyan-deep);
}

.page-products .prod-device--tablet{
  border-left-color:var(--cyan-electric);
  background:linear-gradient(160deg, rgba(47,227,206,.1), transparent 55%), var(--ink-700);
}

.page-products .prod-device[hidden]{
  display:none;
}

.page-products .prod-device__tag{
  margin:0 0 10px;
  font-family:var(--font-data);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--prod-tint);
}

.page-products .prod-device h3{
  margin:0 0 10px;
  font-size:1.16rem;
  font-weight:600;
  letter-spacing:-.01em;
}

.page-products .prod-device p{
  margin:0 0 12px;
  font-size:.95rem;
  line-height:1.8;
  color:var(--paper-dim);
  max-width:62ch;
}

.page-products .prod-device__list{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap:6px;
  font-size:.86rem;
  color:var(--neutral-400);
}

.page-products .prod-device__list li{
  padding-left:14px;
  position:relative;
  line-height:1.7;
}

.page-products .prod-device__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.65em;
  width:5px;
  height:5px;
  background:var(--prod-tint);
  transform:rotate(45deg);
}

.page-products .prod-device .prod-media{
  margin:18px 0 0;
}

/* ---------- 步骤 ---------- */
.page-products .prod-track{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:6px;
  margin-bottom:clamp(20px,3vw,30px);
}

.page-products .prod-track__seg{
  height:5px;
  border-radius:2px;
  background:rgba(127,200,240,.22);
}

.page-products .prod-track__seg.is-on{
  background:var(--cyan-electric);
}

.page-products .prod-steps{
  list-style:none;
  margin:0 0 clamp(24px,4vw,36px);
  padding:0;
  display:grid;
  gap:0;
}

.page-products .prod-step{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:14px;
  padding:clamp(18px,3vw,26px) 0;
  border-top:1px solid var(--line);
}

.page-products .prod-step__num{
  font-family:var(--font-data);
  font-weight:700;
  font-size:clamp(2rem,6vw,3.4rem);
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px var(--prod-tint);
  paint-order:stroke;
}

.page-products .prod-step__body h3{
  margin:0 0 10px;
  font-size:1.1rem;
  font-weight:600;
}

.page-products .prod-step__body p{
  margin:0 0 8px;
  font-size:.92rem;
  line-height:1.8;
  color:var(--paper-dim);
  max-width:66ch;
}

.page-products .prod-step__do{
  color:var(--paper);
}

.page-products .prod-step__res::before{
  content:"预期：";
  font-family:var(--font-data);
  font-size:.76rem;
  letter-spacing:.1em;
  color:var(--prod-tint);
  margin-right:4px;
}

.page-products .prod-step__stall::before{
  content:"停顿：";
  font-family:var(--font-data);
  font-size:.76rem;
  letter-spacing:.1em;
  color:var(--neutral-400);
  margin-right:4px;
}

.page-products .prod-step__body a{
  color:var(--cyan-electric);
  text-decoration:none;
  border-bottom:1px solid var(--line-strong);
}

.page-products .prod-qna{
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--glass-layer);
  padding:6px clamp(14px,2.4vw,22px);
}

.page-products .prod-qna .qna__item + .qna__item{
  border-top:1px solid var(--line);
}

.page-products .prod-qna .qna__q{
  width:100%;
  text-align:left;
  background:none;
  border:0;
  color:var(--paper);
  font-family:inherit;
  font-size:.98rem;
  font-weight:600;
  padding:16px 0;
  cursor:pointer;
  display:flex;
  gap:10px;
  align-items:baseline;
}

.page-products .prod-qna .qna__q::before{
  content:"＋";
  font-family:var(--font-data);
  color:var(--cyan-electric);
  font-size:.9rem;
}

.page-products .prod-qna .qna__q[aria-expanded="true"]::before{
  content:"－";
}

.page-products .prod-qna .qna__a{
  padding:0 0 16px 24px;
}

.page-products .prod-qna .qna__a p{
  margin:0;
  font-size:.92rem;
  line-height:1.8;
  color:var(--paper-dim);
  max-width:66ch;
}

/* ---------- 版本清单 ---------- */
.page-products .prod-versions{
  list-style:none;
  margin:0 0 clamp(26px,4vw,40px);
  padding:0;
  display:grid;
  gap:0;
}

.page-products .prod-ver{
  display:grid;
  grid-template-columns:74px 1fr;
  gap:16px;
  padding:18px 0;
  border-top:1px solid var(--line);
  position:relative;
}

.page-products .prod-ver::after{
  content:"";
  position:absolute;
  left:66px;
  top:26px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--cyan-electric);
  box-shadow:0 0 0 3px rgba(47,227,206,.18);
}

.page-products .prod-ver__year{
  font-family:var(--font-data);
  font-weight:700;
  font-size:1.05rem;
  color:var(--cyan-electric);
  letter-spacing:-.01em;
}

.page-products .prod-ver__name{
  display:block;
  font-size:1.04rem;
  font-weight:600;
  margin-bottom:8px;
}

.page-products .prod-ver p{
  grid-column:2;
  margin:0;
  font-size:.92rem;
  line-height:1.8;
  color:var(--paper-dim);
  max-width:64ch;
}

.page-products .prod-boundary{
  border-radius:var(--r-md);
  border:1px solid var(--line-strong);
  background:var(--glass-layer);
  padding:clamp(18px,3vw,26px);
  backdrop-filter:blur(8px);
}

.page-products .prod-boundary .index-label{
  color:var(--cyan-electric);
  margin:0 0 12px;
}

.page-products .prod-boundary ul{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap:8px;
}

.page-products .prod-boundary li{
  position:relative;
  padding-left:16px;
  font-size:.9rem;
  line-height:1.8;
  color:var(--paper-dim);
  max-width:70ch;
}

.page-products .prod-boundary li::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:6px;
  height:1px;
  background:var(--cyan-electric);
}

/* ---------- 场景收口 ---------- */
.page-products .prod-table--scene tbody tr{
  transition:background .2s var(--ease);
}

.page-products .prod-next{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:clamp(22px,3.4vw,32px);
}

.page-products .prod-next .btn{
  text-decoration:none;
}

/* ---------- 响应式 ---------- */
@media (min-width:760px){
  .page-products .prod-devices{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }

  .page-products .prod-device--tablet{
    grid-column:1 / -1;
  }

  .page-products .prod-step{
    grid-template-columns:110px minmax(0,1fr);
    gap:22px;
  }

  .page-products .prod-ver{
    grid-template-columns:110px minmax(0,1fr);
  }

  .page-products .prod-ver::after{
    left:100px;
  }
}

@media (min-width:1000px){
  .page-products .prod-hero__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  }

  .page-products .prod-devices{
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    grid-template-areas:
      "phone tablet"
      "screen tablet";
    align-items:start;
  }

  .page-products .prod-device--phone{ grid-area:phone; }
  .page-products .prod-device--tablet{ grid-area:tablet; grid-column:auto; }
  .page-products .prod-device--screen{ grid-area:screen; }

  .page-products .prod-ver{
    grid-template-columns:110px 200px minmax(0,1fr);
    align-items:baseline;
  }

  .page-products .prod-ver p{
    grid-column:3;
  }

  .page-products .prod-ver::after{
    top:30px;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-products .prod-index__list a,
  .page-products .prod-table--scene tbody tr{
    transition:none;
  }

  .page-products .reveal{
    opacity:1;
    transform:none;
  }
}