/* ===== 下载与选型中心 · 页面专属样式 ===== */
.page-products{
  --sel-line: var(--gray-200);
  --sel-card: #ffffff;
  --sel-shadow: 0 1px 2px rgba(7, 12, 20, .05), 0 16px 36px rgba(7, 12, 20, .07);
  background: var(--gray-050);
  color: var(--text-900);
}

.page-products .sel-sec{
  padding: 48px 0;
}
.page-products .sel-sec--paper{ background: #ffffff; }
.page-products .sel-sec--tint{ background: var(--blue-050); }
.page-products .sel-sec--ink{
  background: linear-gradient(168deg, var(--ink-950), #0A1729 62%, var(--ink-800));
  color: #ffffff;
}

@media (min-width: 900px){
  .page-products .sel-sec{ padding: 78px 0; }
}

/* ---------- 首屏 ---------- */
.page-products .sel-hero{
  position: relative;
  overflow: hidden;
  color: #ffffff;
  padding-bottom: 34px;
  background:
    radial-gradient(120% 96% at 84% 4%, rgba(0, 87, 184, .55), transparent 60%),
    linear-gradient(165deg, var(--ink-950) 0%, #0A1729 56%, var(--ink-800) 100%);
}
.page-products .sel-hero::after{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(168, 201, 238, .13) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(168, 201, 238, .13) 0 1px, transparent 1px 72px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 84%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 84%);
}

.page-products .sel-hero .breadcrumb{
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 13px;
  color: rgba(168, 201, 238, .7);
}
.page-products .sel-hero .breadcrumb a{
  color: rgba(255, 255, 255, .86);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-products .sel-hero .breadcrumb a:hover,
.page-products .sel-hero .breadcrumb a:focus-visible{
  color: var(--orange-500);
}

.page-products .sel-hero__inner{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding: 30px 0 6px;
}
@media (min-width: 960px){
  .page-products .sel-hero__inner{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
    padding: 54px 0 14px;
  }
}

.page-products .sel-hero .eyebrow{
  margin: 0;
  color: var(--orange-500);
}
.page-products .sel-hero h1{
  margin: 10px 0 0;
  font-size: clamp(31px, 7.2vw, 56px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -.015em;
}
.page-products .sel-hero__desc{
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(255, 255, 255, .78);
}
.page-products .sel-hero__actions{
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .sel-hero__panel{
  border: 1px solid rgba(168, 201, 238, .26);
  border-radius: var(--radius-m);
  background: rgba(232, 241, 251, .06);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  padding: 22px 20px;
}
.page-products .sel-hero__panel-title{
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--blue-200);
}
.page-products .sel-quick{
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products .sel-quick a{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px;
  border-bottom: 1px dashed rgba(168, 201, 238, .22);
  color: #ffffff;
  font-size: 15px;
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}
.page-products .sel-quick li:last-child a{ border-bottom: 0; }
.page-products .sel-quick a:hover,
.page-products .sel-quick a:focus-visible{
  color: var(--orange-500);
  padding-left: 8px;
}
.page-products .sel-quick a span:last-child{
  flex: 0 0 auto;
  font-size: 11.5px;
  color: rgba(168, 201, 238, .72);
}

/* ---------- 筛选条 ---------- */
.page-products .sel-filter{
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(255, 255, 255, .95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sel-line);
}
.page-products .sel-filter__inner{
  display: grid;
  gap: 10px;
  padding-top: 12px;
  padding-bottom: 12px;
}
@media (min-width: 900px){
  .page-products .sel-filter__inner{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    align-items: center;
  }
}
.page-products .sel-filter__row{
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.page-products .sel-filter__label{
  flex: 0 0 auto;
  padding-right: 10px;
  border-right: 1px solid var(--sel-line);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gray-600);
}
.page-products .sel-filter__chips{
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 2px 2px;
  list-style: none;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.page-products .sel-filter__chips::-webkit-scrollbar{ display: none; }
.page-products .sel-filter__chips a{
  display: inline-block;
  white-space: nowrap;
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid var(--sel-line);
  background: #ffffff;
  color: var(--text-900);
  font-size: 13px;
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.page-products .sel-filter__chips a.chip-tint{
  background: var(--blue-050);
  border-color: var(--blue-200);
  color: var(--blue-700);
  font-family: var(--font-mono);
  font-size: 12px;
}
.page-products .sel-filter__chips a:hover,
.page-products .sel-filter__chips a:focus-visible{
  background: var(--blue-600);
  border-color: var(--blue-600);
  color: #ffffff;
}
.page-products .sel-filter__chips a:focus-visible{
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
}

/* ---------- 章节标题 ---------- */
.page-products .sel-head{
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: 30px;
}
.page-products .sel-head h2{
  margin: 0;
  font-size: clamp(24px, 3.6vw, 35px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.01em;
}
.page-products .sel-head__lead{
  margin: 0;
  font-size: 16px;
  line-height: 1.76;
  color: var(--gray-600);
}
.page-products .sel-sec--ink .sel-head h2{ color: #ffffff; }
.page-products .sel-sec--ink .sel-head__lead{ color: rgba(255, 255, 255, .74); }
.page-products .sel-sec--ink .sel-head .eyebrow{ color: var(--orange-500); }

/* ---------- 媒体框 ---------- */
.page-products .sel-media{
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--sel-line);
  background: #ffffff;
}
.page-products .sel-media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .sel-media--wide{ margin-bottom: 26px; }
.page-products .sel-sec--ink .sel-media{
  border-color: rgba(168, 201, 238, .24);
  background: rgba(255, 255, 255, .04);
}
.page-products .tier__figure{ margin: 32px 0 0; }
.page-products .resp__figure{ margin: 26px 0 0; }
.page-products .dl-figure{ margin: 28px 0 0; }

/* ---------- 十二组产品线 ---------- */
.page-products .line-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 620px){
  .page-products .line-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px){
  .page-products .line-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }
}

.page-products .line-card{
  position: relative;
  scroll-margin-top: 160px;
  background: var(--sel-card);
  border: 1px solid var(--sel-line);
  border-radius: var(--radius-m);
  padding: 24px 20px 20px;
  transition: border-color .28s var(--ease), box-shadow .28s var(--ease), transform .28s var(--ease);
}
.page-products .line-card::before{
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  width: 34px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--blue-600);
  transition: width .3s var(--ease), background .3s var(--ease);
}
.page-products .line-card:hover{
  border-color: var(--blue-200);
  box-shadow: var(--sel-shadow);
  transform: translateY(-3px);
}
.page-products .line-card:hover::before{
  width: 68px;
  background: var(--orange-500);
}
.page-products .line-card__idx{
  display: inline-block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--blue-600);
}
.page-products .line-card__title{
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}
.page-products .line-card__scope{
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray-600);
}
.page-products .line-card__facts{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  padding-top: 14px;
  border-top: 1px solid var(--gray-200);
}
.page-products .line-card__fact{
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 13.5px;
  color: var(--text-900);
}
.page-products .line-card__fact b{
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--gray-600);
}
.page-products .line-card__reveal{
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height .32s var(--ease), opacity .32s var(--ease), margin-top .32s var(--ease);
}
.page-products .line-card__reveal p{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--blue-700);
}
.page-products .line-card:hover .line-card__reveal{
  max-height: 140px;
  opacity: 1;
  margin-top: 14px;
}
@media (hover: none){
  .page-products .line-card__reveal{ max-height: none; opacity: 1; margin-top: 14px; }
}

/* ---------- 价格档位 ---------- */
.page-products .tier{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 640px){
  .page-products .tier{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px){
  .page-products .tier{
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
  }
}
.page-products .tier__item{
  position: relative;
  background: #ffffff;
  border: 1px solid var(--sel-line);
  border-radius: var(--radius-m);
  padding: 22px 20px;
}
.page-products .tier__item::before{
  content: "";
  display: block;
  height: 6px;
  border-radius: 999px;
  margin-bottom: 16px;
  background: var(--blue-200);
}
.page-products .tier__item:nth-child(1)::before{ background: linear-gradient(90deg, var(--blue-200), #CFE1F7); }
.page-products .tier__item:nth-child(2)::before{ background: linear-gradient(90deg, var(--blue-600), var(--blue-200)); }
.page-products .tier__item:nth-child(3)::before{ background: linear-gradient(90deg, var(--blue-700), var(--blue-600)); }
.page-products .tier__item:nth-child(4)::before{ background: linear-gradient(90deg, var(--orange-500), var(--orange-100)); }
@media (min-width: 1024px){
  .page-products .tier__item:nth-child(1){ padding: 24px 20px; }
  .page-products .tier__item:nth-child(2){ padding: 32px 20px; }
  .page-products .tier__item:nth-child(3){ padding: 40px 20px; }
  .page-products .tier__item:nth-child(4){ padding: 48px 20px; }
}
.page-products .tier__idx{
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gray-600);
}
.page-products .tier__name{
  margin: 10px 0 4px;
  font-size: 19px;
  font-weight: 700;
}
.page-products .tier__price{
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--blue-600);
}
.page-products .tier__desc{
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--gray-600);
}
.page-products .tier__for{
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--gray-200);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-900);
}

/* ---------- 响应时限 ---------- */
.page-products .resp{
  display: grid;
  gap: 14px;
}
.page-products .resp__row{
  display: grid;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--sel-line);
  border-radius: var(--radius-m);
  padding: 18px 20px;
}
@media (min-width: 860px){
  .page-products .resp__row{
    grid-template-columns: 148px minmax(0, 1fr) 220px;
    align-items: center;
    gap: 28px;
  }
}
.page-products .resp__tag{
  font-size: 14px;
  font-weight: 500;
  color: var(--blue-700);
}
.page-products .resp__desc{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray-600);
}
.page-products .resp__bar{
  height: 8px;
  border-radius: 999px;
  background: var(--blue-050);
  overflow: hidden;
}
.page-products .resp__bar span{
  display: block;
  height: 100%;
  border-radius: 999px;
}
.page-products .resp__row:nth-child(1) .resp__bar span{ width: 30%; background: var(--orange-500); }
.page-products .resp__row:nth-child(2) .resp__bar span{ width: 64%; background: var(--blue-600); }
.page-products .resp__row:nth-child(3) .resp__bar span{ width: 100%; background: var(--blue-700); }

/* ---------- 下载中心 ---------- */
.page-products .dl-shell{
  background: #ffffff;
  border: 1px solid var(--sel-line);
  border-radius: var(--radius-l);
  overflow: hidden;
}
.page-products .tabs__nav{
  display: flex;
  gap: 4px;
  padding: 8px;
  background: var(--gray-050);
  border-bottom: 1px solid var(--sel-line);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.page-products .tabs__nav::-webkit-scrollbar{ display: none; }
.page-products .tabs__btn{
  flex: 0 0 auto;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  padding: 8px 18px;
  font-family: inherit;
  font-size: 14px;
  color: var(--gray-600);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .tabs__btn:hover{ color: var(--text-900); }
.page-products .tabs__btn[aria-selected="true"]{
  background: var(--blue-600);
  border-color: var(--blue-600);
  color: #ffffff;
  font-weight: 600;
}
.page-products .tabs__btn:focus-visible{
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
}
.page-products .tabs__panel[hidden]{ display: none; }

.page-products .dl-list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-products .dl-row{
  display: grid;
  gap: 4px 16px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  transition: background .2s var(--ease);
}
.page-products .dl-row:last-child{ border-bottom: 0; }
.page-products .dl-row:hover{ background: var(--blue-050); }
.page-products .dl-row__name{
  grid-area: 1 / 1;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-900);
}
.page-products .dl-row__ver{
  grid-area: 1 / 2;
  font-size: 12.5px;
  color: var(--blue-600);
}
.page-products .dl-row__size{
  grid-area: 2 / 2;
  text-align: right;
  font-size: 12px;
  color: var(--gray-600);
}
.page-products .dl-row__note{
  grid-area: 2 / 1;
  font-size: 13px;
  line-height: 1.62;
  color: var(--gray-600);
}
@media (min-width: 860px){
  .page-products .dl-row{
    grid-template-columns: minmax(200px, 1.6fr) 108px 92px minmax(200px, 2.2fr);
    align-items: center;
    gap: 18px;
  }
  .page-products .dl-row__name{ grid-area: 1 / 1; }
  .page-products .dl-row__ver{ grid-area: 1 / 2; }
  .page-products .dl-row__size{ grid-area: 1 / 3; text-align: left; }
  .page-products .dl-row__note{ grid-area: 1 / 4; }
}
.page-products .dl-note{
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--gray-600);
}
.page-products .dl-note a{
  color: var(--blue-600);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-200);
}
.page-products .dl-note a:hover{ border-bottom-color: var(--orange-500); color: var(--blue-700); }

/* ---------- App 与工具 ---------- */
.page-products .app-wrap{
  display: grid;
  gap: 32px;
}
@media (min-width: 900px){
  .page-products .app-wrap{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: center;
  }
}
.page-products .app-list{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-products .app-list li{
  position: relative;
  padding-left: 20px;
  display: grid;
  gap: 4px;
}
.page-products .app-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange-500);
}
.page-products .app-list strong{
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}
.page-products .app-list span{
  font-size: 14px;
  line-height: 1.72;
  color: rgba(255, 255, 255, .72);
}
.page-products .app-actions{
  margin-top: 28px;
}

/* ---------- 下载与安装常见疑问 ---------- */
.page-products .dl-faq{
  display: grid;
  gap: 10px;
  max-width: 880px;
}
.page-products .dl-faq details{
  background: #ffffff;
  border: 1px solid var(--sel-line);
  border-radius: var(--radius-m);
  padding: 0 20px;
  transition: border-color .2s var(--ease);
}
.page-products .dl-faq details[open]{ border-color: var(--blue-200); }
.page-products .dl-faq summary{
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 17px 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
}
.page-products .dl-faq summary::-webkit-details-marker{ display: none; }
.page-products .dl-faq summary::before{
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--blue-600);
}
.page-products .dl-faq details[open] summary::before{
  content: "−";
  color: var(--orange-500);
}
.page-products .dl-faq summary:focus-visible{
  outline: 2px solid var(--blue-600);
  outline-offset: 3px;
  border-radius: 6px;
}
.page-products .dl-faq__body{
  margin: 0 0 18px;
  padding-left: 24px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--gray-600);
}
.page-products .dl-faq__body a{
  color: var(--blue-600);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-200);
}
.page-products .dl-faq__body a:hover{ border-bottom-color: var(--orange-500); }

/* ---------- 选型顾问 ---------- */
.page-products .cta-band{
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-l);
  padding: 38px 24px;
  color: #ffffff;
  background: linear-gradient(150deg, var(--ink-950), #0A2A55 60%, var(--blue-700));
}
.page-products .cta-band::after{
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 107, 53, .32), transparent 68%);
}
.page-products .cta-band__inner{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}
@media (min-width: 900px){
  .page-products .cta-band{ padding: 56px 48px; }
  .page-products .cta-band__inner{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }
}
.page-products .cta-band h2{
  margin: 0;
  font-size: clamp(23px, 3.4vw, 33px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.01em;
}
.page-products .cta-band p{
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
}
.page-products .cta-band__actions{
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products .cta-facts{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}
.page-products .cta-facts li{
  padding-left: 14px;
  border-left: 2px solid var(--orange-500);
  font-size: 14px;
  line-height: 1.68;
  color: rgba(255, 255, 255, .85);
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  .page-products .line-card,
  .page-products .line-card::before,
  .page-products .line-card__reveal,
  .page-products .sel-filter__chips a,
  .page-products .sel-quick a{
    transition: none;
  }
  .page-products .line-card:hover{ transform: none; }
}
<<<END>>>