/* ===== 项目中心 /projects/ 页面专属样式 ===== */
.page-products{
  --pr-red-soft:rgba(180,18,31,.16);
  --pr-red-mid:rgba(180,18,31,.42);
  --pr-cyan-soft:rgba(25,242,212,.08);
  --pr-pad-y:clamp(46px,7vw,92px);
  display:block;
  background:var(--black-900);
  color:var(--ink);
  overflow-x:hidden;
}

/* ---- 面包屑 ---- */
.page-products .pr-crumb{
  display:flex;
  align-items:center;
  gap:10px;
  padding:clamp(18px,3vw,30px) 0 0;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--slate);
}
.page-products .pr-crumb a{
  color:var(--slate);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.page-products .pr-crumb a:hover{ color:var(--cyan); }
.page-products .pr-crumb__sep{ color:var(--graphite); }
.page-products .pr-crumb [aria-current="page"]{ color:var(--cyan); }

/* ---- 首屏框景 ---- */
.page-products .pr-hero{
  position:relative;
  padding:clamp(16px,3vw,34px) 0 clamp(34px,5vw,64px);
}
.page-products .pr-hero__frame{
  position:relative;
  padding:clamp(26px,5vw,58px) clamp(20px,4vw,54px) clamp(28px,5vw,52px);
  background:
    radial-gradient(128% 118% at 6% -6%, var(--pr-red-mid) 0%, rgba(110,10,24,.24) 44%, transparent 72%),
    linear-gradient(152deg, #15171E 0%, #0A0B0F 64%);
  overflow:hidden;
}
.page-products .pr-hero__frame::after{
  content:"";
  position:absolute;
  right:-14%;
  top:-40%;
  width:52%;
  height:180%;
  background:linear-gradient(180deg, rgba(25,242,212,.10), transparent 68%);
  transform:rotate(11deg);
  pointer-events:none;
}
.page-products .pr-hero__tag{
  position:relative;
  z-index:1;
  color:var(--slate);
}
.page-products .pr-hero__title{
  position:relative;
  z-index:1;
  margin:clamp(14px,2.2vw,24px) 0 0;
  font-size:clamp(36px,6.6vw,92px);
  line-height:1.04;
  letter-spacing:-.02em;
  font-weight:200;
  color:var(--paper);
}
.page-products .pr-hero__title em{
  font-style:normal;
  font-weight:900;
  color:var(--yellow);
}
.page-products .pr-hero__lead{
  position:relative;
  z-index:1;
  margin:clamp(18px,2.6vw,28px) 0 0;
  max-width:66ch;
  font-size:clamp(15px,1.5vw,16.5px);
  line-height:1.8;
  color:#C7CCD6;
}

.page-products .pr-hero__quick{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  margin-top:clamp(26px,4vw,44px);
  background:var(--line-soft);
  border:1px solid var(--line);
}
@media (min-width:620px){
  .page-products .pr-hero__quick{ grid-template-columns:repeat(2,1fr); }
}
@media (min-width:1080px){
  .page-products .pr-hero__quick{ grid-template-columns:repeat(4,1fr); }
}
.page-products .pr-quick{
  display:flex;
  flex-direction:column;
  gap:7px;
  padding:18px 18px 20px;
  background:var(--black-900);
  color:var(--ink);
  text-decoration:none;
  transition:background var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-products .pr-quick:hover,
.page-products .pr-quick:focus-visible{
  background:var(--black-700);
  outline:none;
}
.page-products .pr-quick__num{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--cyan);
}
.page-products .pr-quick__label{
  font-size:16px;
  font-weight:700;
  color:var(--paper);
  transition:color var(--dur) var(--ease);
}
.page-products .pr-quick:hover .pr-quick__label{ color:var(--cyan); }
.page-products .pr-quick__hint{
  font-size:12.5px;
  color:var(--slate);
  line-height:1.6;
}

/* ---- 通用分节 ---- */
.page-products .pr-sec{
  padding:var(--pr-pad-y) 0;
  position:relative;
}
.page-products .pr-sec--last{
  padding-bottom:clamp(60px,9vw,120px);
}
.page-products .pr-chapter{
  margin-bottom:clamp(26px,4vw,48px);
}
.page-products .pr-sec:target .chapter-num{
  color:var(--cyan);
}
.page-products [id]{ scroll-margin-top:calc(var(--header-h) + 20px); }

/* ---- 01 四条功能线 ---- */
.page-products .pr-lines{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--line-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media (min-width:760px){
  .page-products .pr-lines{ grid-template-columns:repeat(2,1fr); }
}
@media (min-width:1180px){
  .page-products .pr-lines{ grid-template-columns:repeat(4,1fr); }
}
.page-products .pr-line{ background:var(--black-900); }
.page-products .pr-line__link{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  height:100%;
  padding:clamp(22px,3vw,34px);
  text-decoration:none;
  color:inherit;
  transition:background var(--dur) var(--ease);
}
.page-products .pr-line__link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--cyan);
  transition:width var(--dur) var(--ease);
}
.page-products .pr-line__link:hover{ background:var(--black-700); }
.page-products .pr-line__link:hover::after{ width:100%; }
.page-products .pr-line__idx{
  font-family:var(--font-mono);
  font-weight:200;
  font-size:clamp(42px,5.6vw,68px);
  line-height:1;
  color:var(--graphite);
  transition:color var(--dur) var(--ease);
}
.page-products .pr-line__link:hover .pr-line__idx{ color:var(--crimson-glow); }
.page-products .pr-line__title{
  margin:0;
  font-size:19px;
  font-weight:700;
  color:var(--paper);
  letter-spacing:.01em;
}
.page-products .pr-line__desc{
  margin:0;
  flex:1;
  font-size:14.5px;
  line-height:1.78;
  color:var(--slate);
}
.page-products .pr-line__go{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--cyan);
}

/* ---- 02 联赛导航分类 ---- */
.page-products .pr-cat{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,4vw,44px);
  align-items:start;
}
@media (min-width:1024px){
  .page-products .pr-cat{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  }
}
.page-products .pr-tree{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--line);
}
.page-products .pr-tree__item{
  position:relative;
  padding:16px 0 16px 48px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.page-products .pr-tree__item::before{
  content:"";
  position:absolute;
  left:22px;
  top:0;
  bottom:0;
  width:1px;
  background:var(--line-soft);
}
.page-products .pr-tree__item::after{
  content:"";
  position:absolute;
  left:18px;
  top:26px;
  width:9px;
  height:9px;
  border:1px solid var(--cyan);
  background:var(--black-900);
  transform:rotate(45deg);
  transition:background var(--dur) var(--ease);
}
.page-products .pr-tree__item:hover{ background:rgba(21,23,30,.7); }
.page-products .pr-tree__item:hover::after{ background:var(--cyan); }
.page-products .pr-tree__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 14px;
}
.page-products .pr-tree__l1{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--cyan);
}
.page-products .pr-tree__name{
  font-size:16.5px;
  font-weight:700;
  color:var(--paper);
}
.page-products .pr-tree__meta{
  font-size:12.5px;
  color:var(--slate);
}
.page-products .pr-tree__sub{
  list-style:none;
  margin:11px 0 0;
  padding:0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.page-products .pr-tree__sub li{
  padding:3px 10px;
  border:1px solid var(--line);
  font-size:12.5px;
  color:var(--slate);
  transition:border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products .pr-tree__sub li:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}
.page-products .pr-cat__note{
  margin:clamp(18px,2.4vw,26px) 0 0;
  padding-left:16px;
  border-left:2px solid var(--crimson-700);
  font-size:14.5px;
  line-height:1.8;
  color:#B9BFC9;
  max-width:64ch;
}
.page-products .pr-cat__media{
  margin:0;
  border:1px solid var(--line);
  background:var(--black-700);
}
.page-products .pr-cat__media .media__img{
  display:block;
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
}
.page-products .pr-cat__media .media__cap{
  display:block;
  padding:12px 14px;
  font-size:12.5px;
  color:var(--slate);
  letter-spacing:.02em;
  border-top:1px solid var(--line-soft);
}

/* ---- 03 收藏常用版 ---- */
.page-products .pr-collect{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(26px,4vw,48px);
  align-items:start;
}
@media (min-width:1024px){
  .page-products .pr-collect{
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  }
}
.page-products .pr-grid20{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:6px;
}
@media (min-width:820px){
  .page-products .pr-grid20{ grid-template-columns:repeat(10,minmax(0,1fr)); }
}
.page-products .pr-cell{
  display:grid;
  place-items:center;
  aspect-ratio:3/2;
  border:1px solid var(--graphite);
  background:linear-gradient(158deg, var(--pr-cyan-soft), var(--pr-red-soft));
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--slate);
  transition:border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-products .pr-cell:hover{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateY(-2px);
}
.page-products .pr-cell--on{
  border-color:var(--yellow);
  color:var(--yellow);
  background:linear-gradient(158deg, rgba(255,216,77,.10), var(--pr-red-soft));
}
.page-products .pr-collect__caption{
  margin:12px 0 0;
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--slate);
}
.page-products .pr-points{
  display:grid;
  gap:1px;
  background:var(--line-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.page-products .pr-point{
  background:var(--black-900);
  padding:18px 0;
}
.page-products .pr-point__num{
  display:block;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--cyan);
}
.page-products .pr-point__title{
  margin:8px 0 6px;
  font-size:17px;
  font-weight:700;
  color:var(--paper);
}
.page-products .pr-point p{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:var(--slate);
  max-width:62ch;
}
.page-products .pr-flow{
  margin-top:clamp(22px,3vw,32px);
  padding:clamp(18px,3vw,26px);
  border:1px solid var(--line);
  background:linear-gradient(150deg, var(--pr-red-soft), transparent 62%);
}
.page-products .pr-flow__label{
  margin:0;
  color:var(--slate);
}
.page-products .pr-flow__steps{
  list-style:none;
  margin:14px 0 0;
  padding:0;
  display:grid;
  gap:10px;
  counter-reset:none;
}
.page-products .pr-flow__steps li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:14px;
  line-height:1.72;
  color:#C2C7D1;
}
.page-products .pr-flow__steps .num{
  flex:none;
  display:grid;
  place-items:center;
  width:22px;
  height:22px;
  margin-top:2px;
  border:1px solid var(--graphite);
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--cyan);
}
.page-products .pr-collect__media{
  margin:clamp(28px,4vw,52px) 0 0;
  border:1px solid var(--line);
  background:var(--black-700);
}
.page-products .pr-collect__media .media__img{
  display:block;
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
}
.page-products .pr-collect__media .media__cap{
  display:block;
  padding:12px 14px;
  border-top:1px solid var(--line-soft);
  font-size:12.5px;
  color:var(--slate);
}

/* ---- 04 数据响应 ---- */
.page-products .pr-sec--resp{
  padding:0;
}
.page-products .pr-resp{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--black-700);
}
.page-products .pr-resp__bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.34;
}
.page-products .pr-resp__veil{
  position:absolute;
  inset:0;
  background:
    linear-gradient(102deg, rgba(10,11,15,.95) 0%, rgba(10,11,15,.76) 46%, rgba(110,10,24,.56) 100%);
}
.page-products .pr-resp__inner{
  position:relative;
  z-index:1;
  padding:var(--pr-pad-y) 0;
}
.page-products .pr-resp__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:rgba(154,161,174,.16);
  border:1px solid var(--line);
}
@media (min-width:680px){
  .page-products .pr-resp__grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (min-width:1180px){
  .page-products .pr-resp__grid{ grid-template-columns:repeat(4,minmax(0,1fr)); }
}
.page-products .pr-stat{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:clamp(20px,3vw,30px);
  background:rgba(10,11,15,.86);
  transition:background var(--dur) var(--ease);
}
.page-products .pr-stat:hover{ background:rgba(21,23,30,.94); }
.page-products .pr-stat__val{
  font-family:var(--font-mono);
  font-size:clamp(30px,3.6vw,44px);
  font-weight:500;
  line-height:1;
  color:var(--cyan);
  letter-spacing:-.01em;
}
.page-products .pr-stat__val em{
  font-style:normal;
  font-size:14px;
  letter-spacing:.08em;
  color:var(--slate);
  margin-left:4px;
}
.page-products .pr-stat__name{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--paper);
}
.page-products .pr-stat p{
  margin:0;
  font-size:14px;
  line-height:1.76;
  color:#B6BCC6;
}

/* ---- 05 场景 ---- */
.page-products .pr-scenes{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line);
}
@media (min-width:900px){
  .page-products .pr-scenes{ grid-template-columns:repeat(12,minmax(0,1fr)); }
  .page-products .pr-scene--a{ grid-column:span 7; }
  .page-products .pr-scene--b{ grid-column:span 5; }
  .page-products .pr-scene--c{ grid-column:span 5; }
  .page-products .pr-scene--d{ grid-column:span 7; }
}
.page-products .pr-scene{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(22px,3vw,36px);
  background:var(--black-900);
  transition:background var(--dur) var(--ease);
}
.page-products .pr-scene--a,
.page-products .pr-scene--d{
  background:linear-gradient(158deg, rgba(21,23,30,.96), rgba(10,11,15,1));
}
.page-products .pr-scene:hover{ background:var(--black-700); }
.page-products .pr-scene__title{
  margin:0;
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  color:var(--paper);
  max-width:26ch;
}
.page-products .pr-scene p{
  margin:0;
  font-size:14.5px;
  line-height:1.8;
  color:var(--slate);
  max-width:60ch;
}
.page-products .pr-scene__fit{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cyan) !important;
}
.page-products .pr-scenes__media{
  margin:clamp(26px,4vw,44px) 0 0;
  border:1px solid var(--line);
  background:var(--black-700);
}
.page-products .pr-scenes__media .media__img{
  display:block;
  width:100%;
  aspect-ratio:2/1;
  object-fit:cover;
}
.page-products .pr-scenes__media .media__cap{
  display:block;
  padding:12px 14px;
  border-top:1px solid var(--line-soft);
  font-size:12.5px;
  color:var(--slate);
}

/* ---- 06 版本时间轴 ---- */
.page-products .pr-timeline{
  border-top:1px solid var(--line);
}
.page-products .pr-tl{
  border-bottom:1px solid var(--line);
}
.page-products .pr-timeline .acc-btn{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:16px;
  width:100%;
  padding:20px 6px;
  text-align:left;
  background:none;
  border:0;
  color:var(--ink);
  cursor:pointer;
  transition:background var(--dur) var(--ease);
}
.page-products .pr-timeline .acc-btn:hover{ background:rgba(21,23,30,.72); }
.page-products .pr-tl__year{
  font-family:var(--font-mono);
  font-size:clamp(20px,2.6vw,28px);
  font-weight:500;
  color:var(--cyan);
  letter-spacing:-.01em;
}
.page-products .pr-tl__label{
  font-size:16px;
  font-weight:700;
  color:var(--paper);
}
.page-products .pr-tl__hint{
  color:var(--slate);
  white-space:nowrap;
}
.page-products .pr-tl__panel{
  overflow:hidden;
}
.page-products .pr-tl__inner{
  padding:0 6px 22px 6px;
  border-left:2px solid var(--line);
  margin-left:4px;
  padding-left:18px;
}
.page-products .pr-tl__inner p{
  margin:0;
  font-size:14.5px;
  line-height:1.82;
  color:#B9BFC9;
  max-width:64ch;
}

/* ---- 07 接入路径 ---- */
.page-products .pr-path{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(14px,2vw,20px);
}
@media (min-width:700px){
  .page-products .pr-path{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (min-width:1140px){
  .page-products .pr-path{ grid-template-columns:repeat(4,minmax(0,1fr)); }
}
.page-products .pr-path__step{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:clamp(20px,3vw,28px);
  border:1px solid var(--line);
  background:linear-gradient(162deg, var(--pr-red-soft), transparent 60%);
  transition:border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-products .pr-path__step::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:2px;
  height:0;
  background:var(--cyan);
  transition:height var(--dur) var(--ease);
}
.page-products .pr-path__step:hover{
  border-color:rgba(25,242,212,.42);
  transform:translateY(-3px);
}
.page-products .pr-path__step:hover::before{ height:100%; }
.page-products .pr-path__num{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--cyan);
}
.page-products .pr-path__title{
  margin:0;
  font-size:17px;
  font-weight:700;
  color:var(--paper);
}
.page-products .pr-path__step p{
  margin:0;
  flex:1;
  font-size:14px;
  line-height:1.76;
  color:var(--slate);
}
.page-products .pr-path__link{
  align-self:flex-start;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--yellow);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products .pr-path__link:hover{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}
.page-products .pr-tail{
  margin-top:clamp(28px,4vw,46px);
  padding:clamp(20px,3vw,30px);
  border:1px solid var(--line);
  border-left:3px solid var(--crimson-700);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:var(--black-700);
}
.page-products .pr-tail__text{
  margin:0;
  font-size:15px;
  line-height:1.75;
  color:#C2C7D1;
  max-width:58ch;
}
.page-products .pr-tail__btn{
  flex:none;
  text-decoration:none;
}

/* ---- 窄屏收紧 ---- */
@media (max-width:600px){
  .page-products .pr-hero__frame::after{ display:none; }
  .page-products .pr-timeline .acc-btn{
    grid-template-columns:auto 1fr;
    gap:12px;
  }
  .page-products .pr-tl__hint{
    grid-column:1 / -1;
    font-size:11px;
  }
  .page-products .pr-scene__title{ font-size:17px; }
}

@media (prefers-reduced-motion:reduce){
  .page-products .pr-line__link::after,
  .page-products .pr-path__step::before,
  .page-products .pr-path__step,
  .page-products .pr-cell{
    transition:none;
  }
}
<<<END>>>