.page-products{
  background: var(--ink-900);
  color: var(--mist);
  font-family: var(--font-display);
  overflow-x: hidden;
}

.page-products .pd-sr{
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.25rem, 3.5vw, 2.25rem) 0 clamp(2.5rem, 6vw, 4.5rem);
  background: var(--ink-950);
  border-bottom: 1px solid rgba(143,163,184,.18);
}

.page-products .pd-hero__bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center 35%;
  opacity: .3;
  z-index: -2;
}

.page-products .pd-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 12% 6%, rgba(255,106,26,.24), transparent 58%),
    radial-gradient(90% 70% at 92% 18%, rgba(20,102,168,.4), transparent 62%),
    linear-gradient(180deg, rgba(7,26,47,.74) 0%, rgba(7,26,47,.95) 64%, var(--ink-900) 100%);
}

.page-products .pd-hero__inner{
  position: relative;
}

.page-products .pd-hero__grid{
  display: grid;
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.page-products .pd-kicker{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
  font-family: var(--font-serif);
  font-size: .8125rem;
  letter-spacing: .16em;
  color: var(--orange-300);
}

.page-products .pd-hero__title{
  margin: .65rem 0 0;
  font-size: clamp(1.95rem, 7vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.025em;
  color: #fff;
}

.page-products .pd-hero__title-accent{
  color: var(--orange-300);
}

.page-products .pd-hero__lead{
  margin: 1rem 0 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(244,247,250,.82);
}

.page-products .pd-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.4rem;
}

/* 版本选择器 */
.page-products .pd-picker{
  padding: 1rem;
  border: 1px solid rgba(143,163,184,.24);
  border-radius: var(--radius);
  background: rgba(14,46,79,.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.page-products .pd-picker__label{
  margin: 0 0 .75rem;
  font-family: var(--font-serif);
  font-size: .8125rem;
  letter-spacing: .12em;
  color: var(--orange-300);
}

.page-products .pd-picker__item{
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .75rem .8rem;
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-products .pd-picker__item + .pd-picker__item{
  margin-top: .3rem;
}

.page-products .pd-picker__item:hover,
.page-products .pd-picker__item:focus-visible{
  background: rgba(20,102,168,.26);
  border-left-color: var(--orange);
}

.page-products .pd-picker__ver{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  white-space: nowrap;
}

.page-products .pd-picker__body{
  display: flex;
  flex-direction: column;
  gap: .18rem;
  min-width: 0;
}

.page-products .pd-picker__name{
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
}

.page-products .pd-picker__desc{
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--gray);
}

/* ---------- 通用区块 ---------- */
.page-products .pd-section{
  padding: clamp(2.25rem, 5.5vw, 4rem) 0;
  border-bottom: 1px solid rgba(143,163,184,.14);
}

.page-products .pd-h2{
  margin: .65rem 0 0;
  font-size: clamp(1.45rem, 4.2vw, 2.25rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: #fff;
}

.page-products .pd-lede{
  margin: .85rem 0 0;
  max-width: 64ch;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(244,247,250,.78);
}

.page-products .pd-section__head{
  display: grid;
  gap: 1.4rem;
}

.page-products .pd-figure{
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(143,163,184,.2);
  border-radius: var(--radius);
  background: var(--ink-700);
}

.page-products .pd-figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .pd-figure figcaption{
  padding: .6rem .85rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--gray);
  background: rgba(4,16,29,.72);
  border-top: 1px solid rgba(143,163,184,.16);
}

/* ---------- 版本矩阵 ---------- */
.page-products .pd-table-scroll{
  margin-top: 1.6rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(143,163,184,.2);
  border-radius: var(--radius);
  background: rgba(4,16,29,.6);
}

.page-products .pd-matrix{
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: .875rem;
}

.page-products .pd-matrix th,
.page-products .pd-matrix td{
  padding: .8rem .95rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(143,163,184,.13);
}

.page-products .pd-matrix tbody tr:last-child th,
.page-products .pd-matrix tbody tr:last-child td{
  border-bottom: 0;
}

.page-products .pd-matrix thead th{
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gray);
  background: rgba(14,46,79,.9);
  white-space: nowrap;
}

.page-products .pd-matrix thead th em{
  display: block;
  margin-top: .25rem;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: .9rem;
  color: var(--green);
}

.page-products .pd-matrix tbody th{
  font-weight: 500;
  color: var(--gray);
  white-space: nowrap;
}

.page-products .pd-matrix tbody td{
  color: rgba(244,247,250,.88);
  line-height: 1.6;
}

.page-products .pd-matrix tr > *:nth-child(2){
  background: linear-gradient(180deg, rgba(255,106,26,.15), rgba(255,106,26,.05));
  box-shadow: inset 2px 0 0 var(--orange);
  color: #fff;
}

.page-products .pd-matrix thead th.is-current{
  color: #fff;
}

/* ---------- 升级版 ---------- */
.page-products .pd-split{
  display: grid;
  gap: 1.6rem;
}

.page-products .pd-feature-list{
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-products .pd-feature-list li{
  position: relative;
  padding-left: 1.5rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(244,247,250,.85);
}

.page-products .pd-feature-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .5rem;
  height: .5rem;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-products .pd-feature-list strong{
  color: #fff;
  font-weight: 700;
}

.page-products .pd-feature-list a{
  color: var(--orange-300);
}

/* ---------- 历史归档 ---------- */
.page-products .pd-timeline{
  list-style: none;
  position: relative;
  margin: 1.9rem 0 0;
  padding: 0;
}

.page-products .pd-timeline::before{
  content: "";
  position: absolute;
  left: .32rem;
  top: .45rem;
  bottom: .45rem;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(20,102,168,.35));
}

.page-products .pd-timeline__item{
  position: relative;
  padding: 0 0 1.5rem 1.9rem;
}

.page-products .pd-timeline__item:last-child{
  padding-bottom: 0;
}

.page-products .pd-timeline__item::before{
  content: "";
  position: absolute;
  left: .05rem;
  top: .5rem;
  width: .58rem;
  height: .58rem;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255,106,26,.14);
}

.page-products .pd-timeline__year{
  margin: 0 0 .3rem;
  font-family: var(--font-serif);
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--gray);
}

.page-products .pd-timeline__head{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .65rem;
  margin-bottom: .45rem;
}

.page-products .pd-timeline__ver{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.01em;
}

.page-products .pd-timeline__text{
  margin: 0;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(244,247,250,.8);
}

.page-products .pd-timeline__tags{
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .7rem 0 0;
}

.page-products .pd-copy{
  padding: .25rem .6rem;
  border: 1px solid rgba(143,163,184,.42);
  border-radius: 999px;
  background: transparent;
  color: var(--gray);
  font-family: var(--font-display);
  font-size: .75rem;
  line-height: 1.5;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .pd-copy:hover,
.page-products .pd-copy:focus-visible{
  color: var(--orange-300);
  border-color: var(--orange-300);
}

/* ---------- 费用 ---------- */
.page-products .pd-cost{
  display: grid;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-products .pd-cost__item{
  overflow: hidden;
  border: 1px solid rgba(143,163,184,.2);
  border-radius: var(--radius);
  background: rgba(14,46,79,.45);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-products .pd-cost__item[open]{
  border-color: rgba(255,106,26,.45);
  background: rgba(14,46,79,.72);
}

.page-products .pd-cost__item summary{
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .95rem 1rem;
  cursor: pointer;
  list-style: none;
}

.page-products .pd-cost__item summary::-webkit-details-marker{
  display: none;
}

.page-products .pd-cost__idx{
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  color: var(--orange-300);
}

.page-products .pd-cost__name{
  flex: 1;
  font-size: .98rem;
  font-weight: 700;
  color: #fff;
}

.page-products .pd-cost__hint{
  padding: .15rem .55rem;
  border: 1px solid rgba(143,163,184,.32);
  border-radius: 999px;
  font-size: .75rem;
  color: var(--gray);
  white-space: nowrap;
}

.page-products .pd-cost__item summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--orange);
}

.page-products .pd-cost__item[open] summary::after{
  content: "−";
}

.page-products .pd-cost__body{
  padding: .9rem 1rem 1.1rem;
  border-top: 1px solid rgba(143,163,184,.14);
}

.page-products .pd-cost__body ul{
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: .5rem;
}

.page-products .pd-cost__body li{
  font-size: .9rem;
  line-height: 1.7;
  color: rgba(244,247,250,.82);
}

.page-products .pd-cost__body a{
  color: var(--orange-300);
}

.page-products .pd-note{
  margin: 1.2rem 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--gray);
}

.page-products .pd-note a{
  color: var(--orange-300);
}

/* ---------- 步骤 ---------- */
.page-products .pd-steps{
  list-style: none;
  display: grid;
  gap: .9rem;
  margin: 1.6rem 0 0;
  padding: 0;
}

.page-products .pd-steps li{
  padding: 1.1rem 1rem 1.15rem;
  border-top: 2px solid var(--orange);
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(14,46,79,.42);
}

.page-products .pd-steps__num{
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(255,106,26,.6);
}

.page-products .pd-steps h3{
  margin: .55rem 0 .4rem;
  font-size: .98rem;
  font-weight: 700;
  color: #fff;
}

.page-products .pd-steps p{
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: rgba(244,247,250,.78);
}

/* ---------- 支持 ---------- */
.page-products .pd-qa{
  display: grid;
  gap: .95rem;
  margin-top: 1.4rem;
}

.page-products .pd-qa__item{
  padding-top: .9rem;
  border-top: 1px solid rgba(143,163,184,.16);
}

.page-products .pd-qa__item h3{
  margin: 0 0 .35rem;
  font-size: .95rem;
  font-weight: 700;
  color: #fff;
}

.page-products .pd-qa__item p{
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(244,247,250,.78);
}

/* ---------- 收尾 ---------- */
.page-products .pd-cta{
  padding: clamp(2.25rem, 5.5vw, 3.5rem) 0;
  background:
    linear-gradient(118deg, rgba(255,106,26,.2), transparent 58%),
    var(--ink-950);
  border-top: 1px solid rgba(255,106,26,.28);
}

.page-products .pd-cta__inner{
  display: grid;
  gap: 1.3rem;
}

.page-products .pd-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px){
  .page-products .pd-section__head{
    grid-template-columns: minmax(0,1fr) minmax(0,.78fr);
    align-items: end;
    gap: 2rem;
  }

  .page-products .pd-cost{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .page-products .pd-cost__item:first-child{
    grid-column: 1 / -1;
  }

  .page-products .pd-steps{
    grid-template-columns: repeat(2, minmax(0,1fr));
  }

  .page-products .pd-cta__inner{
    grid-template-columns: minmax(0,1fr) auto;
    align-items: center;
    gap: 2rem;
  }
}

@media (min-width: 900px){
  .page-products .pd-hero__grid{
    grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr);
    align-items: start;
    gap: 3rem;
    margin-top: 2.25rem;
  }

  .page-products .pd-split{
    grid-template-columns: minmax(0,1.5fr) minmax(0,1fr);
    align-items: center;
    gap: 2.75rem;
  }

  .page-products .pd-split--support{
    grid-template-columns: minmax(0,1.25fr) minmax(0,1fr);
    align-items: start;
  }
}

@media (min-width: 1100px){
  .page-products .pd-steps{
    grid-template-columns: repeat(4, minmax(0,1fr));
  }

  .page-products .pd-cost{
    grid-template-columns: repeat(3, minmax(0,1fr));
  }

  .page-products .pd-cost__item:first-child{
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products .pd-picker__item,
  .page-products .pd-copy,
  .page-products .pd-cost__item{
    transition: none;
  }
}
<<<END>>>