.page-products{
  --rail-w:132px;
  --pc-line:rgba(18,36,29,.14);
  --pc-muted:#5f665e;
  color:var(--deep);
  background:var(--paper);
  padding-bottom:clamp(40px,6vw,84px);
  overflow-x:clip;
}
.page-products .breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  padding-top:clamp(14px,2.6vw,26px);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--pc-muted);
}
.page-products .breadcrumb a{
  color:inherit;
  text-decoration:none;
  border-bottom:1px solid var(--edge);
  padding-bottom:1px;
}
.page-products .breadcrumb a:hover{ color:var(--ink); border-color:var(--gold); }

.page-products a:focus-visible,
.page-products button:focus-visible{
  outline:2px solid var(--gold-line);
  outline-offset:3px;
}

/* ---------- 首屏 ---------- */
.page-products .hero{
  display:grid;
  gap:clamp(22px,4vw,44px);
  align-items:center;
  padding:clamp(18px,3.4vw,38px) 0 clamp(30px,4.6vw,56px);
}
.page-products .hero h1{
  font-family:var(--font-head);
  font-size:clamp(29px,5.2vw,54px);
  line-height:1.14;
  letter-spacing:.02em;
  margin:.18em 0 .44em;
  color:var(--deep);
}
.page-products .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin:0;
  font-size:12px;
  letter-spacing:.24em;
  color:#4a544d;
}
.page-products .eyebrow::before{
  content:"";
  width:20px;
  height:2px;
  background:var(--gold);
}
.page-products .hero .lede{
  margin:0;
  font-size:clamp(15px,1.35vw,17px);
  line-height:1.8;
  max-width:34em;
  color:#333d37;
}
.page-products .hero-figure{
  position:relative;
  margin:0;
  border:1px solid var(--edge);
  background:var(--paper);
  box-shadow:var(--shadow-paper);
}
.page-products .hero-figure img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
}
.page-products .hero-figure figcaption{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border-top:1px solid var(--edge);
  font-size:12px;
  line-height:1.6;
  color:#4a544d;
}

.page-products .picker{
  display:grid;
  gap:10px;
  margin-top:clamp(20px,3vw,30px);
}
.page-products .pick{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:13px 15px;
  border:1px solid var(--edge);
  border-radius:10px;
  background:var(--paper);
  text-decoration:none;
  color:var(--deep);
  transition:transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
}
.page-products .pick:hover{
  transform:translateY(-2px);
  border-color:var(--gold-line);
  background:#fbf6ec;
}
.page-products .pick-q{
  font-family:var(--font-head);
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.02em;
}
.page-products .pick-a{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--pc-muted);
}

/* ---------- 左右栅格 ---------- */
.page-products .layout{
  display:grid;
  gap:clamp(22px,3.6vw,52px);
  align-items:start;
}
.page-products .rail{ display:none; }
.page-products .flow{
  display:grid;
  gap:clamp(46px,7vw,92px);
  min-width:0;
}
.page-products .rail .toc-title{
  margin:0 0 14px;
  font-size:11px;
  letter-spacing:.28em;
  color:#7a8078;
}
.page-products .rail .toc-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:20px;
}
.page-products .rail .toc-list a{
  display:flex;
  flex-direction:column;
  gap:3px;
  text-decoration:none;
  color:var(--deep);
}
.page-products .rail-num{
  font-family:var(--font-mono);
  font-size:32px;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px #b9b2a4;
  transition:color .28s var(--ease), -webkit-text-stroke-color .28s var(--ease);
}
.page-products .rail-label{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--pc-muted);
  transition:color .28s var(--ease);
}
.page-products .rail .toc-list a:hover .rail-num{ color:var(--gold-line); }
.page-products .rail .toc-list a[aria-current="location"] .rail-num{
  color:var(--gold);
  -webkit-text-stroke-color:var(--gold);
}
.page-products .rail .toc-list a[aria-current="location"] .rail-label{
  color:var(--deep);
  font-weight:700;
}

/* ---------- 章节头 ---------- */
.page-products .stage{ min-width:0; }
.page-products .stage-head{
  display:flex;
  align-items:flex-end;
  gap:12px;
  padding-bottom:10px;
  border-bottom:1px solid var(--edge);
  margin-bottom:clamp(16px,2.6vw,26px);
}
.page-products .stage-num{
  font-family:var(--font-mono);
  font-size:clamp(30px,4.4vw,52px);
  line-height:.86;
  color:var(--gold-line);
}
.page-products .stage-head h2{
  margin:0;
  font-family:var(--font-head);
  font-size:clamp(21px,3vw,32px);
  line-height:1.26;
  letter-spacing:.01em;
  color:var(--deep);
}
.page-products .stage-lede{
  margin:0 0 clamp(16px,2.4vw,24px);
  font-size:16px;
  line-height:1.8;
  max-width:34em;
  color:#333d37;
}
.page-products .body-copy p{
  margin:0 0 14px;
  font-size:15.5px;
  line-height:1.8;
  color:#333d37;
  max-width:34em;
}
.page-products .body-copy p:last-child{ margin-bottom:0; }
.page-products .body-copy a{
  color:var(--ink);
  text-decoration:none;
  border-bottom:1px solid var(--gold);
}
.page-products .body-copy a:hover{ color:#8a4f08; }

/* ---------- 四端筛选与卡片 ---------- */
.page-products .filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:clamp(16px,2.4vw,24px);
}
.page-products .filter-btn{
  font-family:var(--font-body);
  font-size:13px;
  line-height:1.2;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--edge);
  background:var(--paper);
  color:#45503f;
  cursor:pointer;
  transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .filter-btn:hover{
  border-color:var(--gold-line);
  color:var(--deep);
}
.page-products .filter-btn[aria-pressed="true"]{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--paper);
}

.page-products .port-grid{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:14px;
}
.page-products .port-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:18px;
  background:var(--paper);
  border:1px solid var(--edge);
  border-top:3px solid var(--gold);
  box-shadow:4px 4px 0 var(--pc-line);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.page-products .port-card:hover{
  transform:translateY(-2px);
  border-color:var(--gold-line);
  border-top-color:var(--gold);
  box-shadow:6px 6px 0 rgba(18,36,29,.2);
}
.page-products .port-head{
  display:flex;
  align-items:center;
  gap:9px;
}
.page-products .port-head h3{
  flex:1;
  margin:0;
  font-family:var(--font-head);
  font-size:16px;
  line-height:1.4;
  letter-spacing:.01em;
}
.page-products .port-icon{
  width:22px;
  height:22px;
  flex:none;
  fill:none;
  stroke:var(--gold);
  stroke-width:1.6;
  stroke-linecap:round;
}
.page-products .port-facts{
  margin:0;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 14px;
}
.page-products .port-facts dt{
  font-size:11px;
  letter-spacing:.14em;
  color:#7a8078;
  margin-bottom:3px;
}
.page-products .port-facts dd{
  margin:0;
  font-size:14px;
  line-height:1.5;
  color:var(--deep);
}
.page-products .port-facts .mono{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.5;
  padding:2px 6px;
  border-radius:4px;
  background:var(--tag);
  color:#2c352f;
  word-break:break-all;
}
.page-products .port-card .link-arrow{ margin-top:auto; }

/* ---------- 图文两栏 ---------- */
.page-products .split{
  display:grid;
  gap:clamp(20px,3.4vw,40px);
  align-items:start;
}
.page-products .media-fig{
  margin:0;
  padding:8px;
  border:1px solid var(--edge);
  background:var(--paper);
  box-shadow:4px 4px 0 var(--pc-line);
}
.page-products .media-fig img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  object-fit:cover;
}
.page-products .media-fig figcaption{
  padding:9px 4px 2px;
  font-size:12px;
  line-height:1.65;
  color:var(--pc-muted);
}

/* ---------- 五步编号 ---------- */
.page-products .steps{
  list-style:none;
  margin:clamp(16px,2.6vw,24px) 0 0;
  padding:0;
  display:grid;
  gap:clamp(15px,2.4vw,24px);
}
.page-products .step{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:13px;
  padding-top:clamp(13px,2.2vw,20px);
  border-top:1px solid var(--edge);
}
.page-products .step:first-child{
  border-top:0;
  padding-top:0;
}
.page-products .step-num{
  font-family:var(--font-mono);
  font-size:clamp(26px,3.6vw,40px);
  line-height:.9;
  color:var(--gold);
}
.page-products .step h3{
  margin:0 0 6px;
  font-family:var(--font-head);
  font-size:16.5px;
  line-height:1.45;
}
.page-products .step p{
  margin:0;
  font-size:14.8px;
  line-height:1.75;
  color:#333d37;
}
.page-products .step .step-note{
  margin:7px 0 0;
  padding-left:10px;
  border-left:2px solid var(--gold-line);
  font-size:13px;
  line-height:1.7;
  color:#6f6a5c;
}

.page-products .bullets{
  list-style:none;
  margin:16px 0 20px;
  padding:0;
  display:grid;
  gap:10px;
}
.page-products .bullets li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  line-height:1.7;
  color:#333d37;
}
.page-products .bullets li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--gold);
}

/* ---------- 礼包深色带 ---------- */
.page-products .gift-band{
  display:grid;
  gap:clamp(20px,3.4vw,36px);
  padding:clamp(22px,4vw,42px);
  border-radius:8px;
  background:var(--ink);
  color:var(--paper);
}
.page-products .gift-band h2{
  margin:12px 0;
  font-family:var(--font-head);
  font-size:clamp(21px,2.9vw,30px);
  line-height:1.3;
  color:var(--paper);
}
.page-products .gift-band p{
  margin:0 0 14px;
  font-size:15px;
  line-height:1.8;
  color:#e9dfcd;
  max-width:34em;
}
.page-products .gift-band .bullets{ margin-top:18px; }
.page-products .gift-band .bullets li{ color:#e9dfcd; }
.page-products .gift-band .bullets li::before{ background:var(--gold-line); }
.page-products .gift-band figure{
  margin:0;
}
.page-products .gift-band img{
  display:block;
  width:100%;
  height:auto;
  max-width:100%;
  border:1px solid rgba(242,200,121,.35);
  border-radius:6px;
}
.page-products .gift-band .btn{ align-self:start; margin-top:4px; }

/* ---------- 校验 ---------- */
.page-products .copy-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin:18px 0 22px;
}
.page-products .version-note{
  margin:0;
  display:grid;
  gap:12px;
}
.page-products .version-note > div{
  padding:12px 14px;
  background:var(--tag);
  border-left:3px solid var(--gold-line);
  border-radius:0 4px 4px 0;
}
.page-products .version-note dt{
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--deep);
}
.page-products .version-note dd{
  margin:5px 0 0;
  font-size:14px;
  line-height:1.75;
  color:#333d37;
}

/* ---------- 配置 ---------- */
.page-products .spec-band{
  display:grid;
  gap:14px;
  margin-bottom:clamp(18px,2.8vw,26px);
}
.page-products .spec-col{
  padding:18px;
  border:1px solid var(--edge);
  border-radius:6px;
  background:var(--tag);
}
.page-products .spec-col--hi{
  background:var(--paper);
  border-color:var(--gold-line);
  box-shadow:4px 4px 0 rgba(224,138,30,.2);
}
.page-products .spec-col h3{
  margin:0 0 11px;
  font-family:var(--font-head);
  font-size:14.5px;
  letter-spacing:.08em;
  color:var(--deep);
}
.page-products .spec-col ul{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:9px;
}
.page-products .spec-col li{
  font-size:14px;
  line-height:1.65;
  color:#333d37;
}
.page-products .spec-col li span{
  display:inline-block;
  margin-right:7px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:#6d726b;
}
.page-products .sys-list{
  list-style:none;
  margin:0 0 clamp(16px,2.6vw,22px);
  padding:0;
  border-top:1px solid var(--edge);
}
.page-products .sys-list li{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:10px;
  padding:12px 2px;
  border-bottom:1px solid var(--edge);
  font-size:14px;
  line-height:1.6;
}
.page-products .sys-list b{
  font-family:var(--font-head);
  font-size:14px;
  font-weight:700;
  color:var(--deep);
}
.page-products .sys-list span{
  font-family:var(--font-mono);
  font-size:12px;
  color:#48524b;
  text-align:right;
}

/* ---------- 收尾 ---------- */
.page-products .closing-inner{
  display:grid;
  gap:20px;
  padding:clamp(22px,3.6vw,38px);
  border:1px solid var(--gold-line);
  border-radius:8px;
  background:linear-gradient(135deg, rgba(224,138,30,.12), rgba(18,36,29,.05));
}
.page-products .closing h2{
  margin:0 0 9px;
  font-family:var(--font-head);
  font-size:clamp(19px,2.6vw,26px);
  line-height:1.35;
  color:var(--deep);
}
.page-products .closing p{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:#333d37;
  max-width:32em;
}
.page-products .closing-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- 响应式 ---------- */
@media (min-width:600px){
  .page-products .picker{ grid-template-columns:repeat(3,minmax(0,1fr)); }
}
@media (min-width:680px){
  .page-products .port-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .page-products .spec-band{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (min-width:760px){
  .page-products .closing-inner{ grid-template-columns:minmax(0,1fr) auto; align-items:center; }
}
@media (min-width:860px){
  .page-products .gift-band{ grid-template-columns:minmax(0,1fr) minmax(0,.82fr); align-items:center; }
}
@media (min-width:880px){
  .page-products .hero{ grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr); }
  .page-products .split{ grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr); }
  .page-products .split--flip{ grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr); }
  .page-products .split--flip .media-fig{ order:2; }
}
@media (min-width:960px){
  .page-products .layout{ grid-template-columns:var(--rail-w) minmax(0,1fr); }
  .page-products .rail{
    display:block;
    position:sticky;
    top:84px;
    align-self:start;
  }
}
@media (prefers-reduced-motion:reduce){
  .page-products .pick,
  .page-products .port-card,
  .page-products .rail-num,
  .page-products .rail-label{
    transition:none;
  }
  .page-products .pick:hover,
  .page-products .port-card:hover{ transform:none; }
}