.page-products {
  --prd-edge: rgba(217, 169, 74, .32);
  --prd-edge-soft: rgba(183, 175, 192, .16);
  --prd-shadow: 0 22px 44px -28px rgba(0, 0, 0, .85);
  --prd-cyan-soft: rgba(53, 199, 232, .14);
}

/* ---------- 首屏 ---------- */
.page-products .prd-hero {
  padding-top: clamp(1.2rem, 4vw, 2.2rem);
}

.page-products .prd-hero .breadcrumb {
  margin-bottom: 1.1rem;
}

.page-products .prd-hero__frame {
  position: relative;
  border: 1px solid var(--prd-edge);
  padding: clamp(1.4rem, 4vw, 3rem);
  background:
    radial-gradient(120% 150% at 88% 0%, rgba(140, 75, 255, .20), transparent 62%),
    radial-gradient(90% 120% at 0% 100%, rgba(53, 199, 232, .10), transparent 60%),
    linear-gradient(180deg, rgba(23, 20, 31, .94), rgba(10, 9, 16, .94));
  box-shadow: var(--prd-shadow);
  overflow: hidden;
}

.page-products .prd-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: repeating-linear-gradient(180deg, var(--gold) 0 2px, transparent 2px 11px);
  opacity: .6;
}

.page-products .prd-hero__frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), var(--violet) 45%, transparent 92%);
}

.page-products .prd-hero__grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 3rem);
  grid-template-columns: 1fr;
}

.page-products .prd-hero h1 {
  margin: .55rem 0 1rem;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 17ch;
  text-shadow: 0 0 26px rgba(217, 169, 74, .3);
}

.page-products .prd-hero__lead .lede {
  color: var(--body-on-ink);
  max-width: 40ch;
}

.page-products .prd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-products .prd-hero__aside {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding-left: 1.1rem;
  border-left: 1px solid var(--prd-edge-soft);
}

.page-products .prd-hero__aside-text {
  margin: 0;
  max-width: 24ch;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.9;
}

@media (min-width: 940px) {
  .page-products .prd-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .8fr);
    align-items: end;
  }
}

/* ---------- 区块头 ---------- */
.page-products .prd-head {
  max-width: 46rem;
  margin-bottom: clamp(1.3rem, 3vw, 2.2rem);
}

.page-products .prd-head .section__title {
  margin: .45rem 0 .8rem;
}

/* ---------- 四个系列 ---------- */
.page-products .prd-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: clamp(1.2rem, 3vw, 1.9rem);
}

.page-products .prd-series__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-products .prd-series__card {
  position: relative;
  padding: 1.4rem 1.3rem 1.35rem;
  display: flex;
  flex-direction: column;
}

.page-products .prd-series__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--gold);
  opacity: .55;
  margin-bottom: .7rem;
}

.page-products .prd-series__card .card__title {
  margin: 0;
}

.page-products .prd-series__one {
  margin: .55rem 0 0;
  color: var(--body-on-ink);
  font-size: .97rem;
  line-height: 1.85;
}

.page-products .prd-series__facts {
  margin: 1.1rem 0 0;
  display: grid;
  gap: .45rem;
}

.page-products .prd-series__facts > div {
  display: grid;
  grid-template-columns: 4.4rem minmax(0, 1fr);
  gap: .6rem;
  padding-top: .45rem;
  border-top: 1px dashed var(--prd-edge-soft);
}

.page-products .prd-series__facts dt {
  color: var(--muted);
  font-size: .76rem;
  letter-spacing: .08em;
}

.page-products .prd-series__facts dd {
  margin: 0;
  color: var(--body-on-ink);
  font-size: .9rem;
  line-height: 1.65;
}

@media (min-width: 660px) {
  .page-products .prd-series__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-products .prd-series__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .prd-series__card:nth-child(1) { grid-column: span 5; }
  .page-products .prd-series__card:nth-child(2) { grid-column: span 7; }
  .page-products .prd-series__card:nth-child(3) { grid-column: span 7; }
  .page-products .prd-series__card:nth-child(4) { grid-column: span 5; }
}

/* ---------- 四档配置 ---------- */
.page-products .prd-tiers__top {
  display: grid;
  gap: clamp(1.3rem, 4vw, 2.6rem);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-products .prd-tiers__intro .section__title {
  margin: .45rem 0 .8rem;
}

.page-products .prd-tiers__media {
  margin: 0;
}

.page-products .prd-tiers__banner {
  margin: clamp(1.5rem, 4vw, 2.6rem) 0 clamp(1.2rem, 3vw, 2rem);
}

.page-products .prd-stairs {
  display: grid;
  gap: .9rem;
  grid-template-columns: 1fr;
  align-items: end;
  margin-bottom: clamp(1.6rem, 4vw, 2.4rem);
}

.page-products .prd-step {
  border: 1px solid var(--prd-edge-soft);
  background: linear-gradient(180deg, rgba(23, 20, 31, .9), rgba(10, 9, 16, .92));
  padding: .9rem 1rem 1rem;
  transition: border-color .24s var(--ease);
}

.page-products .prd-step:hover,
.page-products .prd-step[open] {
  border-color: var(--prd-edge);
}

.page-products .prd-step__sum {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  cursor: pointer;
  list-style: none;
}

.page-products .prd-step__sum::-webkit-details-marker {
  display: none;
}

.page-products .prd-step__bar {
  display: block;
  width: 100%;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(180deg, rgba(217, 169, 74, .85), rgba(140, 75, 255, .34));
  box-shadow: 0 0 26px -8px rgba(217, 169, 74, .6);
  margin-bottom: .8rem;
}

.page-products .prd-step--a .prd-step__bar { height: 62px; }
.page-products .prd-step--b .prd-step__bar { height: 96px; }
.page-products .prd-step--c .prd-step__bar { height: 132px; }
.page-products .prd-step--d .prd-step__bar { height: 172px; }

.page-products .prd-step__idx {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-products .prd-step__name {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .prd-step__meta {
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: .04em;
}

.page-products .prd-step__body {
  margin-top: .85rem;
  padding-top: .8rem;
  border-top: 1px dashed var(--prd-edge-soft);
}

.page-products .prd-step__body p {
  margin: 0 0 .6rem;
  color: var(--body-on-ink);
  font-size: .9rem;
  line-height: 1.8;
}

.page-products .prd-step__list {
  margin: 0;
  padding-left: 1rem;
  color: var(--muted);
  font-size: .85rem;
  line-height: 1.85;
}

@media (min-width: 720px) {
  .page-products .prd-stairs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 对照表 ---------- */
.page-products .prd-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(122, 31, 43, .35);
  background: var(--paper);
  box-shadow: var(--shadow-paper);
}

.page-products .prd-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  color: var(--ink-text);
  font-size: .92rem;
}

.page-products .prd-table__cap {
  caption-side: top;
  text-align: left;
  padding: .9rem 1rem .4rem;
  font-family: var(--font-serif);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--red);
}

.page-products .prd-table thead th {
  background: var(--red);
  color: var(--paper);
  text-align: left;
  padding: .78rem .9rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-products .prd-table tbody th {
  text-align: left;
  padding: .85rem .9rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(46, 42, 54, .14);
  white-space: nowrap;
}

.page-products .prd-table tbody td {
  padding: .85rem .9rem;
  line-height: 1.65;
  border-bottom: 1px solid rgba(46, 42, 54, .14);
}

.page-products .prd-table tbody tr:nth-child(even) {
  background: rgba(232, 217, 188, .62);
}

.page-products .prd-table tbody tr:hover {
  background: var(--prd-cyan-soft);
}

.page-products .prd-table__ver {
  display: inline-block;
  margin-left: .35rem;
  padding: .06rem .34rem;
  font-size: .7rem;
  font-family: var(--font-mono);
  color: #0A0910;
  background: var(--cyan);
  border-radius: 2px;
  vertical-align: middle;
}

/* ---------- 场景卡 ---------- */
.page-products .prd-scenes__grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}

.page-products .prd-scene {
  position: relative;
  background: linear-gradient(180deg, rgba(23, 20, 31, .95), rgba(10, 9, 16, .95));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  box-shadow: inset 0 0 0 1px var(--prd-edge-soft);
  transition: box-shadow .24s var(--ease), transform .24s var(--ease);
  overflow: hidden;
}

.page-products .prd-scene:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 1px var(--orange), 0 0 34px -14px rgba(255, 122, 61, .7);
}

.page-products .prd-scene__media {
  margin: 0;
}

.page-products .prd-scene__body {
  padding: 1.15rem 1.25rem 1.5rem;
}

.page-products .prd-scene__body h3 {
  margin: .6rem 0 .55rem;
  font-size: 1.18rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .prd-scene__body p {
  margin: 0 0 .7rem;
  color: var(--body-on-ink);
  font-size: .94rem;
  line-height: 1.85;
}

.page-products .prd-scene__pick {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--gold);
}

@media (min-width: 700px) {
  .page-products .prd-scenes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .prd-scenes__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .prd-scene:nth-child(1) { grid-column: span 7; }
  .page-products .prd-scene:nth-child(2) { grid-column: span 5; }
  .page-products .prd-scene:nth-child(3) { grid-column: span 5; }
  .page-products .prd-scene:nth-child(4) { grid-column: span 7; }
}

/* ---------- 版本条目 ---------- */
.page-products .prd-versions__art {
  margin: 0 0 clamp(1.4rem, 4vw, 2.2rem);
}

.page-products .prd-versions__head {
  max-width: 46rem;
  margin-bottom: clamp(1.2rem, 3vw, 1.9rem);
}

.page-products .prd-versions__head .section__title {
  margin: .45rem 0 .8rem;
}

.page-products .prd-vers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
  grid-template-columns: 1fr;
}

.page-products .prd-vers__item {
  display: grid;
  grid-template-columns: 4.9rem minmax(0, 1fr) auto;
  align-items: center;
  gap: .8rem;
  padding: .68rem .9rem;
  border: 1px solid var(--prd-edge-soft);
  background: rgba(23, 20, 31, .74);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-products .prd-vers__item:hover {
  border-color: var(--cyan);
  background: rgba(53, 199, 232, .09);
}

.page-products .prd-vers__no {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--cyan);
  text-align: center;
  padding: .1rem .3rem;
  border: 1px solid rgba(53, 199, 232, .45);
  border-radius: 2px;
}

.page-products .prd-vers__title {
  color: var(--body-on-ink);
  font-size: .93rem;
  line-height: 1.6;
}

.page-products .prd-vers__tag {
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--muted);
  padding: .12rem .5rem;
  border: 1px solid var(--prd-edge-soft);
  border-radius: 999px;
  white-space: nowrap;
}

@media (max-width: 519px) {
  .page-products .prd-vers__item {
    grid-template-columns: 1fr auto;
  }
  .page-products .prd-vers__title {
    grid-column: 1 / -1;
  }
}

@media (min-width: 880px) {
  .page-products .prd-vers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 设置折叠 ---------- */
.page-products .prd-folds {
  display: grid;
  gap: .7rem;
  grid-template-columns: 1fr;
}

.page-products .prd-fold {
  border: 1px solid var(--prd-edge-soft);
  background: linear-gradient(180deg, rgba(23, 20, 31, .9), rgba(10, 9, 16, .9));
  transition: border-color .24s var(--ease);
}

.page-products .prd-fold[open],
.page-products .prd-fold:hover {
  border-color: var(--prd-edge);
}

.page-products .prd-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--paper);
  font-size: .98rem;
}

.page-products .prd-fold > summary::-webkit-details-marker {
  display: none;
}

.page-products .prd-fold > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--gold);
}

.page-products .prd-fold[open] > summary::after {
  content: "–";
  color: var(--orange);
}

.page-products .prd-fold .fold__body {
  padding: 0 1.1rem 1.05rem;
}

.page-products .prd-fold .fold__body ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--body-on-ink);
  font-size: .9rem;
  line-height: 1.95;
}

@media (min-width: 900px) {
  .page-products .prd-folds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

/* ---------- 收束 ---------- */
.page-products .prd-next__panel {
  position: relative;
  max-width: 58rem;
  padding: clamp(1.5rem, 4vw, 2.7rem);
}

.page-products .prd-next__panel h2 {
  margin: .3rem 0 .9rem;
  max-width: 20ch;
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  line-height: 1.3;
  color: var(--ink-text);
}

.page-products .prd-next__panel p {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-text);
  font-size: .98rem;
  line-height: 1.95;
}

.page-products .prd-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-products .prd-next__ghost {
  border-color: var(--red);
  color: var(--red);
}

.page-products .prd-next__more {
  margin-top: 1.1rem;
  font-size: .9rem;
  color: var(--ink-text);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .prd-scene,
  .page-products .prd-vers__item,
  .page-products .prd-step,
  .page-products .prd-fold {
    transition: none;
  }
  .page-products .prd-scene:hover {
    transform: none;
  }
}