.page-products{
  --pd-gold-line:rgba(212,175,55,.26);
  --pd-soft-line:rgba(125,140,163,.22);
  --pd-panel:linear-gradient(158deg,#12263A 0%,#16293E 58%,rgba(5,12,20,.94) 100%);
  background:
    radial-gradient(120% 70% at 90% -8%, rgba(212,175,55,.13), transparent 62%),
    radial-gradient(90% 60% at -8% 34%, rgba(42,157,143,.08), transparent 60%),
    var(--ink-night);
  color:var(--paper);
  overflow-x:hidden;
}

.page-products .wrap{width:100%;}

.page-products .num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}

.page-products .hl{color:var(--gold);}

/* ---------- 首屏 ---------- */
.page-products .dl-hero{
  padding-block:clamp(20px,4vw,40px) clamp(40px,6vw,72px);
}
.page-products .dl-hero__grid{
  display:grid;
  gap:36px;
  margin-top:26px;
}
.page-products .dl-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(29px,5.2vw,52px);
  line-height:1.14;
  letter-spacing:-.02em;
  margin:12px 0 0;
  max-width:16em;
}
.page-products .eyebrow{
  font-family:var(--font-sans);
  font-size:13px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold);
  margin:0;
}
.page-products .dl-hero__lede{
  margin:20px 0 0;
  max-width:640px;
  font-size:17px;
  line-height:1.78;
  color:rgba(244,241,232,.84);
}
.page-products .dl-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.page-products .dl-hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  list-style:none;
  margin:26px 0 0;
  padding:0;
  font-size:14px;
  color:var(--mist);
}
.page-products .dl-hero__meta li{position:relative;padding-left:14px;}
.page-products .dl-hero__meta li::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:6px;height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:var(--gold);
}
.page-products .dl-hero__meta .num{color:var(--paper);font-size:15px;}

.page-products .dl-hero__side{
  display:flex;
  flex-direction:column;
  gap:20px;
}

.page-products .ver-card{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--radius-card);
  background:var(--pd-panel);
  border:1px solid var(--pd-gold-line);
  box-shadow:var(--shadow-stack);
  overflow:hidden;
}
.page-products .ver-card::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft) 58%,transparent);
}
.page-products .ver-card__head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.page-products .ver-card__num{
  font-size:clamp(38px,7vw,52px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--gold);
}
.page-products .ver-card__line{
  margin:16px 0 0;
  font-size:15px;
  line-height:1.75;
  color:rgba(244,241,232,.8);
}
.page-products .ver-list{
  list-style:none;
  margin:20px 0 22px;
  padding:0;
}
.page-products .ver-list li{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:12px 0;
  border-top:1px dashed var(--pd-soft-line);
}
.page-products .ver-list__k{
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--gold);
}
.page-products .ver-list__v{
  font-size:14px;
  line-height:1.7;
  color:rgba(244,241,232,.78);
}

.page-products .media-frame{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:12px;
  border:1px solid var(--pd-gold-line);
  background:linear-gradient(140deg,#0d2135,#050c14);
}
.page-products .media-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.page-products .media-frame__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 16px 12px;
  font-size:12px;
  line-height:1.6;
  letter-spacing:.02em;
  color:rgba(244,241,232,.82);
  background:linear-gradient(180deg,transparent,rgba(5,12,20,.92) 62%);
}
.page-products .dl-hero__media{aspect-ratio:3/2;}

/* ---------- 横贯条带 ---------- */
.page-products .dl-band{
  position:relative;
  border-top:1px solid var(--pd-gold-line);
  border-bottom:1px solid var(--pd-gold-line);
  background:linear-gradient(90deg,rgba(212,175,55,.16),rgba(212,175,55,.03) 62%,transparent);
  padding:16px clamp(20px,4vw,40px);
}
.page-products .dl-band p{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:rgba(244,241,232,.86);
}
.page-products .dl-band .num{color:var(--gold);font-size:15px;}
.page-products .dl-band i{font-style:normal;color:var(--mist);padding:0 10px;}
.page-products .dl-band a{color:var(--gold-soft);text-decoration:underline;text-underline-offset:3px;}

/* ---------- 章节抬头 ---------- */
.page-products .section-head{max-width:760px;}
.page-products .section-head h2,
.page-products .install-body h2,
.page-products .help-body h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,3.6vw,36px);
  line-height:1.2;
  letter-spacing:-.015em;
  margin:10px 0 0;
}
.page-products .section-head__lede{
  margin:14px 0 0;
  font-size:16px;
  line-height:1.78;
  color:rgba(244,241,232,.78);
}
.page-products a{color:var(--gold-soft);}

/* ---------- 通道对比 ---------- */
.page-products .chan-switch{
  position:relative;
  margin-top:34px;
}
.page-products .chan-radio,
.page-products .fault-radio{
  position:absolute;
  width:1px;height:1px;
  opacity:0;
  pointer-events:none;
}
.page-products .chan-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.page-products .chan-tab{
  font-family:var(--font-sans);
  font-size:14px;
  letter-spacing:.06em;
  padding:11px 22px;
  border-radius:var(--radius-pill);
  border:1px solid var(--pd-soft-line);
  color:var(--mist);
  background:rgba(18,38,58,.5);
  cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.page-products .chan-tab:hover{border-color:var(--pd-gold-line);color:var(--paper);}
.page-products #chan-android:checked ~ .chan-tabs .chan-tab[for="chan-android"],
.page-products #chan-web:checked ~ .chan-tabs .chan-tab[for="chan-web"]{
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  border-color:var(--gold);
  color:var(--ink-night);
  font-weight:600;
}
.page-products .chan-panel{display:none;margin-top:26px;}
.page-products #chan-android:checked ~ .chan-panels .chan-panel--android,
.page-products #chan-web:checked ~ .chan-panels .chan-panel--web{display:block;}

.page-products .spec-grid{
  display:grid;
  gap:1px;
  grid-template-columns:1fr;
  background:var(--pd-soft-line);
  border:1px solid var(--pd-soft-line);
  border-radius:12px;
  overflow:hidden;
}
.page-products .spec{
  background:linear-gradient(150deg,rgba(18,38,58,.92),rgba(11,27,43,.92));
  padding:20px 20px 22px;
  border-left:3px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.page-products .spec:hover{border-left-color:var(--gold);}
.page-products .spec__k{
  display:block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:8px;
}
.page-products .spec__v{
  margin:0;
  font-size:15px;
  line-height:1.76;
  color:rgba(244,241,232,.82);
}

/* ---------- 版本节奏 ---------- */
.page-products .ver-media{
  aspect-ratio:12/5;
  margin-top:30px;
}
.page-products .tl{
  list-style:none;
  margin:34px 0 0;
  padding:0;
  display:grid;
  gap:22px;
  grid-template-columns:1fr;
}
.page-products .tl-node{
  position:relative;
  padding:0 0 0 26px;
  outline:none;
}
.page-products .tl-node::before{
  content:"";
  position:absolute;
  left:5px;top:8px;bottom:-22px;
  width:1px;
  background:var(--pd-soft-line);
}
.page-products .tl-node:last-child::before{display:none;}
.page-products .tl-dot{
  position:absolute;
  left:0;top:4px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--ink-night);
  border:2px solid var(--gold);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.page-products .tl-node:hover .tl-dot,
.page-products .tl-node:focus .tl-dot{
  transform:scale(1.05);
  box-shadow:0 0 0 5px rgba(212,175,55,.16);
}
.page-products .tl-ver{
  display:block;
  font-size:20px;
  line-height:1.2;
  color:var(--gold);
  letter-spacing:-.01em;
}
.page-products .tl-name{
  display:block;
  margin-top:6px;
  font-size:16px;
  font-weight:600;
  color:var(--paper);
}
.page-products .tl-note{
  margin:4px 0 0;
  max-height:none;
  font-size:14px;
  line-height:1.72;
  color:var(--mist);
}
.page-products .tl-node.is-current .tl-ver{color:var(--gold-soft);}
.page-products .tl-node.is-current .tl-name::after{
  content:"当前";
  display:inline-block;
  margin-left:10px;
  padding:2px 8px;
  font-size:11px;
  letter-spacing:.12em;
  border-radius:var(--radius-pill);
  background:rgba(212,175,55,.16);
  border:1px solid var(--pd-gold-line);
  color:var(--gold);
  vertical-align:middle;
}
.page-products .ver-foot{
  margin:32px 0 0;
  font-size:15px;
  line-height:1.78;
  color:rgba(244,241,232,.76);
  max-width:720px;
}

/* ---------- 安装检查 ---------- */
.page-products .install-grid{
  display:grid;
  gap:34px;
}
.page-products .install-media{aspect-ratio:1/1;}
.page-products .install-lede{
  margin:14px 0 0;
  font-size:16px;
  line-height:1.78;
  color:rgba(244,241,232,.78);
  max-width:640px;
}
.page-products .checklist{
  list-style:none;
  margin:26px 0 0;
  padding:0;
  display:grid;
  gap:12px;
}
.page-products .checklist label{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:12px;
  border:1px solid var(--pd-soft-line);
  background:rgba(18,38,58,.5);
  cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.page-products .checklist label:hover{border-color:var(--pd-gold-line);}
.page-products .checklist input{
  flex:0 0 auto;
  width:20px;height:20px;
  margin:2px 0 0;
  accent-color:var(--gold);
  cursor:pointer;
}
.page-products .checklist input:checked ~ .checklist__text{color:var(--mist);}
.page-products .checklist input:checked ~ .checklist__text strong{color:var(--jade);}
.page-products .checklist__text{
  font-size:15px;
  line-height:1.72;
  color:rgba(244,241,232,.84);
}
.page-products .checklist__text strong{
  display:block;
  font-size:16px;
  color:var(--paper);
  margin-bottom:4px;
}
.page-products .install-foot{
  margin:24px 0 0;
  font-size:15px;
  line-height:1.78;
  color:var(--mist);
}

/* ---------- 故障对照表 ---------- */
.page-products .faults-media{
  aspect-ratio:10/7;
  margin-top:30px;
}
.page-products .fault-shell{
  position:relative;
  margin-top:30px;
}
.page-products .fault-chips{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-bottom:18px;
  border-bottom:1px solid var(--pd-soft-line);
}
.page-products .fault-chips__label{
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
  margin-right:6px;
}
.page-products .fault-chip{
  font-size:13px;
  letter-spacing:.06em;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--pd-soft-line);
  color:var(--mist);
  background:rgba(18,38,58,.5);
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.page-products .fault-chip:hover{color:var(--paper);border-color:var(--pd-gold-line);}
.page-products #f-all:checked ~ .fault-chips .fault-chip[for="f-all"],
.page-products #f-red:checked ~ .fault-chips .fault-chip[for="f-red"],
.page-products #f-amber:checked ~ .fault-chips .fault-chip[for="f-amber"],
.page-products #f-jade:checked ~ .fault-chips .fault-chip[for="f-jade"]{
  background:linear-gradient(180deg,var(--gold-soft),var(--gold));
  border-color:var(--gold);
  color:var(--ink-night);
  font-weight:600;
}
.page-products #f-red:checked ~ .fault-list .fault-row:not(.fault-row--red),
.page-products #f-amber:checked ~ .fault-list .fault-row:not(.fault-row--amber),
.page-products #f-jade:checked ~ .fault-list .fault-row:not(.fault-row--jade){display:none;}

.page-products .fault-list{
  display:grid;
  gap:12px;
  margin-top:22px;
}
.page-products .fault-row{
  border-radius:12px;
  border:1px solid var(--pd-soft-line);
  border-left-width:4px;
  border-left-style:solid;
  background:linear-gradient(150deg,rgba(18,38,58,.86),rgba(11,27,43,.9));
  padding:18px 20px 20px;
}
.page-products .fault-row--red{border-left-color:var(--red);}
.page-products .fault-row--amber{border-left-color:var(--amber);}
.page-products .fault-row--jade{border-left-color:var(--jade);}
.page-products .fault-row__head{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
}
.page-products .fault-row__title{
  margin:0;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--paper);
  font-family:var(--font-sans);
}
.page-products .fault-row__body{
  margin:14px 0 0;
  display:grid;
  gap:12px;
}
.page-products .fault-row__body dt{
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:4px;
}
.page-products .fault-row__body dd{
  margin:0;
  font-size:15px;
  line-height:1.74;
  color:rgba(244,241,232,.8);
}

/* ---------- 问答 ---------- */
.page-products .faq-list{margin-top:28px;}
.page-products .faq-item{
  border:1px solid var(--pd-soft-line);
  border-radius:12px;
  background:rgba(18,38,58,.5);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.page-products .faq-item:hover{border-color:var(--pd-gold-line);}
.page-products .faq-item summary{
  position:relative;
  cursor:pointer;
  list-style:none;
  padding:18px 54px 18px 20px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--paper);
}
.page-products .faq-item summary::-webkit-details-marker{display:none;}
.page-products .faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:20px;
  line-height:1;
  color:var(--gold);
}
.page-products .faq-item[open] summary::after{content:"–";}
.page-products .faq-item[open] summary{border-bottom:1px solid var(--pd-soft-line);}
.page-products .faq-body{
  padding:16px 20px 20px;
}
.page-products .faq-body p{
  margin:0;
  font-size:15px;
  line-height:1.78;
  color:rgba(244,241,232,.8);
}

/* ---------- 反馈引导 ---------- */
.page-products .help{
  padding-bottom:clamp(72px,10vw,120px);
}
.page-products .help-grid{
  display:grid;
  gap:34px;
  align-items:start;
}
.page-products .help-lede{
  margin:14px 0 0;
  font-size:16px;
  line-height:1.78;
  color:rgba(244,241,232,.78);
  max-width:620px;
}
.page-products .help-list{
  list-style:none;
  margin:24px 0 0;
  padding:0;
  display:grid;
  gap:12px;
}
.page-products .help-list li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  line-height:1.74;
  color:rgba(244,241,232,.8);
}
.page-products .help-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--gold);
}
.page-products .help-list strong{
  color:var(--paper);
  margin-right:8px;
}
.page-products .help-note{
  margin:22px 0 0;
  padding:16px 18px;
  border-radius:12px;
  border:1px solid var(--pd-gold-line);
  border-left:4px solid var(--gold);
  background:rgba(212,175,55,.07);
  font-size:14px;
  line-height:1.78;
  color:rgba(244,241,232,.84);
}
.page-products .help-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.page-products .help-media{aspect-ratio:4/3;}

/* ---------- 平板及以上 ---------- */
@media (min-width:720px){
  .page-products .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-products .help-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
}

@media (min-width:820px){
  .page-products .tl{
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:0;
    position:relative;
    margin-top:44px;
  }
  .page-products .tl::before{
    content:"";
    position:absolute;
    left:0;right:0;top:5px;
    height:1px;
    background:linear-gradient(90deg,transparent,var(--pd-gold-line) 10%,var(--pd-gold-line) 90%,transparent);
  }
  .page-products .tl-node{padding:32px 22px 0 0;}
  .page-products .tl-node::before{display:none;}
  .page-products .tl-dot{top:0;}
  .page-products .tl-note{
    max-height:0;
    opacity:0;
    margin-top:0;
    overflow:hidden;
    transition:max-height .28s var(--ease),opacity .28s var(--ease),margin-top .28s var(--ease);
  }
  .page-products .tl-node:hover .tl-note,
  .page-products .tl-node:focus .tl-note{
    max-height:160px;
    opacity:1;
    margin-top:8px;
  }
}

@media (min-width:980px){
  .page-products .dl-hero__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:56px;
    align-items:start;
  }
  .page-products .install-grid{
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    gap:48px;
    align-items:center;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-products .chan-tab,
  .page-products .spec,
  .page-products .tl-dot,
  .page-products .fault-chip,
  .page-products .checklist label,
  .page-products .faq-item,
  .page-products .tl-note{transition:none;}
  .page-products .tl-node:hover .tl-dot,
  .page-products .tl-node:focus .tl-dot{transform:none;}
}
<<<END>>>