.page-products{
  --pp-radius: 20px;
  background: var(--wd-black);
  color: var(--wd-gray-200);
  overflow-x: hidden;
}

.page-products .section{
  padding: 52px 0;
  position: relative;
}

@media (min-width: 900px){
  .page-products .section{ padding: 80px 0; }
}

.page-products .breadcrumb{ padding-top: 22px; }
.page-products .breadcrumb__link{
  color: var(--text-dim);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-products .breadcrumb__link:hover{ color: var(--wd-blue); }
.page-products .breadcrumb__link[aria-current="page"]{ color: var(--wd-gray-200); }

.page-products .section__head{ margin: 0 0 6px; }
.page-products .section__head > p{
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-products a:focus-visible,
.page-products summary:focus-visible{
  outline: 2px solid var(--wd-blue);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 首屏 ---------- */

.dl-hero{ padding-top: 10px; }
.dl-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(880px 460px at 84% 4%, rgba(224, 27, 47, 0.3), transparent 64%),
    linear-gradient(180deg, rgba(23, 25, 29, 0.9), rgba(11, 12, 14, 0) 72%);
  pointer-events: none;
}
.dl-hero__inner{
  position: relative;
  display: grid;
  gap: 34px;
}
@media (min-width: 960px){
  .dl-hero__inner{
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
    gap: 52px;
  }
}

.dl-hero__eyebrow{
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--wd-green);
}
.dl-hero__title{
  margin: 0;
  max-width: 16ch;
  font-size: clamp(2.05rem, 7.2vw, 4rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--wd-white);
}
.dl-hero__lead{
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-mid);
}
@media (min-width: 900px){
  .dl-hero__lead{ font-size: 17px; }
}

.dl-hero__stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line-dark);
}
@media (min-width: 640px){
  .dl-hero__stats{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.page-products .dl-hero__stats .stat{
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-sm);
  background: rgba(23, 25, 29, 0.74);
}
.page-products .dl-hero__stats .stat__value{
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.8vw, 1.85rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--wd-white);
}
.page-products .dl-hero__stats .stat__unit{
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--wd-green);
}
.page-products .dl-hero__stats .stat__label{
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.dl-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.dl-hero__note{
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-dim);
}

.dl-hero__visual{ display: flex; justify-content: center; }
.dl-hero__shot{
  position: relative;
  margin: 0;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  background: var(--wd-gray-900);
  box-shadow: var(--shadow-glass);
}
.dl-hero__shot img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dl-hero__overlay{
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 15px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: rgba(11, 12, 14, 0.76);
  backdrop-filter: blur(8px);
}
.dl-hero__overlay-num{
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--wd-green);
}
.dl-hero__overlay-num span{
  margin-left: 2px;
  font-size: 13px;
  color: var(--text-dim);
}
.dl-hero__overlay-text{
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--text-mid);
}

/* ---------- 五步路径 ---------- */

.page-products .flow{
  background: linear-gradient(180deg, rgba(23, 25, 29, 0.88), rgba(11, 12, 14, 0) 88%);
}

.flow__line{ display: none; }

.flow__track{
  position: relative;
  display: grid;
  gap: 12px;
  margin-top: 32px;
}
@media (min-width: 960px){
  .flow__track{
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
    margin-top: 40px;
  }
  .flow__line{
    display: block;
    position: absolute;
    left: 0;
    top: 116px;
    width: 100%;
    height: 70px;
    z-index: 0;
  }
}

.flow__node{
  position: relative;
  z-index: 1;
  padding: 15px 16px 17px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: var(--wd-gray-900);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}
.flow__node:hover{
  transform: translateY(-4px);
  border-color: var(--wd-blue);
}
.flow__node[open]{
  border-color: rgba(57, 255, 136, 0.4);
  background: rgba(23, 25, 29, 0.97);
}

.flow__summary{
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--wd-white);
}
.flow__summary::-webkit-details-marker{ display: none; }
.flow__summary::after{
  content: "＋";
  margin-left: auto;
  font-size: 14px;
  color: var(--text-dim);
}
.flow__node[open] .flow__summary::after{
  content: "－";
  color: var(--wd-green);
}

.flow__num{
  flex: 0 0 auto;
  padding: 2px 9px;
  border: 1px solid rgba(57, 255, 136, 0.45);
  border-radius: var(--r-pill);
  background: rgba(57, 255, 136, 0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--wd-green);
}

.flow__body{
  margin-top: 13px;
  padding-top: 13px;
  border-top: 1px dashed var(--line-dark);
}
.flow__body p{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-mid);
}
.flow__list{
  margin: 10px 0 0;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-dim);
}
.flow__list li{ margin-bottom: 6px; }
.flow__list li::marker{ color: var(--wd-red-soft); }
.flow__list li:last-child{ margin-bottom: 0; }

/* ---------- 通用左右分栏 ---------- */

.split{ display: grid; gap: 30px; }
@media (min-width: 960px){
  .split{
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }
  .split--media-first .split__media{ order: 1; }
  .split--media-first .split__copy{ order: 2; }
}
.split__media{
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}
@media (min-width: 960px){
  .split__media{ max-width: 440px; }
}
.split__media img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 轮次与提醒 ---------- */

.page-products .rounds{
  background: var(--wd-gray-900);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.rounds__spec{
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}
.rounds__row{
  padding: 13px 16px;
  border-left: 3px solid var(--wd-red);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(11, 12, 14, 0.5);
}
.rounds__row dt{
  margin-bottom: 5px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--wd-green);
}
.rounds__row dd{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-mid);
}

/* ---------- 主客场对照 ---------- */

.steps{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}
.steps li{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-mid);
}
.steps__num{
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: var(--r-pill);
  background: var(--wd-red);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--wd-white);
}
.break-down__note{
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 数据面板 ---------- */

.panel-data__grid{
  margin-top: 32px;
  row-gap: 24px;
}

.field-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.field-list li{
  padding: 13px 15px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-sm);
  background: rgba(23, 25, 29, 0.7);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-dim);
}
.field-list strong{
  display: block;
  margin-bottom: 4px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--wd-white);
}

.stat-cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.stat-card{
  padding: 16px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: var(--wd-gray-900);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.stat-card:hover{
  transform: translateY(-4px);
  border-color: var(--wd-blue);
}
.stat-card__value{
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4.4vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--wd-green);
}
.stat-card__value span{
  margin-left: 2px;
  font-size: 0.85rem;
  color: var(--wd-green);
}
.stat-card__label{
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}

.panel-data__chart{
  margin: 36px 0 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--wd-gray-900);
}
.panel-data__chart img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.panel-data__caption{
  padding: 12px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-dim);
  border-top: 1px solid var(--line-dark);
}

/* ---------- 版本阶梯 ---------- */

.ladder{
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
@media (min-width: 820px){
  .ladder{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: end;
  }
}
.ladder__step{
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ladder__bar{
  display: block;
  height: 8px;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--wd-red), var(--wd-red-deep));
}
@media (min-width: 820px){
  .ladder__bar{ border-radius: var(--r-md) var(--r-md) 8px 8px; }
  .ladder__step--3 .ladder__bar{ height: 168px; }
  .ladder__step--2 .ladder__bar{ height: 122px; }
  .ladder__step--1 .ladder__bar{ height: 84px; }
}
.ladder__meta{
  padding-top: 12px;
  border-top: 1px solid var(--line-strong);
}
.ladder__ver{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--wd-white);
}
.ladder__title{
  margin: 7px 0 0;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--wd-green);
}
.ladder__text{
  margin: 9px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

/* ---------- 设备与网络（浅色分区） ---------- */

.page-products .compat{
  background: var(--wd-gray-200);
  color: var(--wd-gray-900);
}
.compat .section__index{ color: var(--wd-red); }
.compat .section__title{ color: var(--wd-gray-900); }
.compat .section__head > p{ color: var(--wd-gray-600); }

.compat__layout{
  margin-top: 28px;
  display: grid;
  gap: 22px;
}
@media (min-width: 960px){
  .compat__layout{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }
}

.compat__table-wrap{
  overflow-x: auto;
  border: 1px solid rgba(23, 25, 29, 0.14);
  border-radius: var(--r-md);
  background: var(--wd-white);
}
.compat__table{
  width: 100%;
  min-width: 470px;
  border-collapse: collapse;
  font-size: 14px;
}
.compat__table caption{
  padding: 14px 16px 6px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wd-gray-600);
}
.compat__table th,
.compat__table td{
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
  border-bottom: 1px solid rgba(23, 25, 29, 0.1);
}
.compat__table thead th{
  background: var(--wd-pink);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--wd-gray-900);
}
.compat__table tbody th{ font-weight: 600; }
.compat__table tbody tr{ transition: background .2s var(--ease); }
.compat__table tbody tr:hover{ background: var(--wd-pink); }
.compat__table tbody tr:last-child th,
.compat__table tbody tr:last-child td{ border-bottom: 0; }

.compat__figure{
  margin: 0;
  border: 1px solid rgba(23, 25, 29, 0.14);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--wd-white);
}
.compat__figure img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.compat__note{
  margin: 24px 0 0;
  max-width: 78ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--wd-gray-600);
}

/* ---------- 安装故障 ---------- */

.fail__list{
  margin-top: 28px;
  display: grid;
  gap: 12px;
}
.fail__item{
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: var(--wd-gray-900);
  overflow: hidden;
  transition: border-color .25s var(--ease);
}
.fail__item:hover{ border-color: var(--wd-blue); }
.fail__item[open]{ border-color: rgba(224, 27, 47, 0.55); }

.fail__summary{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--wd-white);
}
.fail__summary::-webkit-details-marker{ display: none; }
.fail__summary::after{
  content: "展开";
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wd-blue);
}
.fail__item[open] .fail__summary::after{
  content: "收起";
  color: var(--text-dim);
}
.fail__body{
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--line-dark);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text-mid);
}
.fail__body p{ margin: 0; }

.fail__more{
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}
.fail__more a{
  color: var(--wd-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 155, 255, 0.45);
}
.fail__more a:hover{ border-bottom-color: var(--wd-blue); }

/* ---------- 尾部指引 ---------- */

.page-products .cta-band{
  border-top: 1px solid var(--line-dark);
  background: linear-gradient(118deg, rgba(224, 27, 47, 0.24), rgba(11, 12, 14, 0) 62%);
}
.cta-band__inner{
  display: grid;
  gap: 20px;
}
@media (min-width: 820px){
  .cta-band__inner{
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}
.cta-band__links{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 520px){
  .cta-band__links .btn{ width: 100%; text-align: center; }
}