.page-products {
  --pt-gap: clamp(16px, 2.4vw, 28px);
  --pt-card-bg: rgba(18, 38, 58, 0.68);
  --pt-card-bg-2: rgba(27, 58, 92, 0.4);
  --pt-radius: 4px;
  display: block;
}

.page-products img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-products .h-display {
  font-family: var(--font-serif);
  font-size: clamp(29px, 5.8vw, 54px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  max-width: 20em;
}

.page-products .h-section {
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.6vw, 35px);
  line-height: 1.26;
  margin: 0 0 14px;
}

.page-products .h-sub {
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.1vw, 23px);
  line-height: 1.3;
  margin: 0;
}

.page-products .pt-sec-head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-products .pt-sec-head__text {
  font-size: 16px;
  line-height: 1.78;
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-products .pt-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(34px, 5vw, 62px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(130% 100% at 92% -10%, rgba(168, 121, 44, 0.2), transparent 60%),
    radial-gradient(90% 80% at 4% 112%, rgba(58, 175, 169, 0.1), transparent 62%),
    var(--scale-tex),
    linear-gradient(180deg, var(--ink-night) 0%, var(--ink-deep) 100%);
}

.page-products .pt-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
  margin-top: clamp(18px, 3vw, 32px);
}

.page-products .pt-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

.page-products .pt-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  overflow: hidden;
}

.page-products .pt-hero__stat {
  background: var(--surface);
  padding: 16px 18px;
}

.page-products .pt-hero__stat dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin: 0 0 6px;
}

.page-products .pt-hero__stat dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.6vw, 28px);
  color: var(--gold-bright);
  line-height: 1.1;
}

/* ---------- 清单总览 ---------- */
.page-products .pt-overview__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  overflow: hidden;
}

.page-products .pt-idx {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "no name meta"
    "desc desc desc";
  align-items: center;
  gap: 8px 12px;
  padding: clamp(16px, 2vw, 22px);
  background: var(--ink-deep);
  color: var(--mist);
  text-decoration: none;
  transition: background var(--t-fast);
}

.page-products .pt-idx:hover,
.page-products .pt-idx:focus-visible {
  background: var(--blue-ultra);
}

.page-products .pt-idx__no {
  grid-area: no;
  color: var(--gold-dark);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-products .pt-idx__name {
  grid-area: name;
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.3;
}

.page-products .pt-idx__meta {
  grid-area: meta;
  font-size: 12px;
  color: var(--jade);
  letter-spacing: 0.06em;
}

.page-products .pt-idx__desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.62;
  color: var(--slate);
}

.page-products .pt-overview__figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
}

/* ---------- 核心模块 ---------- */
.page-products .pt-modules__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pt-gap);
}

.page-products .pt-mod {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: clamp(18px, 2.4vw, 28px);
  background: linear-gradient(158deg, var(--pt-card-bg), rgba(10, 22, 38, 0.55));
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-products .pt-mod::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-bright), rgba(212, 175, 55, 0) 82%);
  opacity: 0.7;
}

.page-products .pt-mod--jade::before {
  background: linear-gradient(180deg, var(--jade), rgba(58, 175, 169, 0) 82%);
}

.page-products .pt-mod--cinnabar::before {
  background: linear-gradient(180deg, var(--cinnabar), rgba(184, 58, 46, 0) 82%);
}

.page-products .pt-mod__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-products .pt-mod__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-dark);
}

.page-products .pt-mod__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
  opacity: 0.86;
}

.page-products .pt-acc {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-products .pt-acc__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 0;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
  transition: color var(--t-fast);
}

.page-products .pt-acc__sum::-webkit-details-marker {
  display: none;
}

.page-products .pt-acc__sum:hover,
.page-products .pt-acc__sum:focus-visible {
  color: var(--mist);
}

.page-products .pt-acc__sum::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--gold-dark);
}

.page-products .pt-acc[open] .pt-acc__sum::after {
  content: "−";
}

.page-products .pt-acc__list {
  list-style: none;
  margin: 14px 0 2px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .pt-acc__list li {
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.68;
  color: var(--slate);
}

.page-products .pt-acc__name {
  display: block;
  color: var(--mist);
  font-weight: 500;
  margin-bottom: 2px;
}

.page-products .pt-mod__figure {
  margin: 0;
  align-self: stretch;
}

/* ---------- 适用场景 ---------- */
.page-products .pt-scenes__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pt-gap);
}

.page-products .pt-scene {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold-dark);
  border-radius: var(--pt-radius);
}

.page-products .pt-scene:nth-child(2) {
  border-top-color: var(--jade);
}

.page-products .pt-scene:nth-child(3) {
  border-top-color: var(--cinnabar);
}

.page-products .pt-scene__stage {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-products .pt-scene__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.34;
}

.page-products .pt-scene__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
  opacity: 0.84;
}

.page-products .pt-scene__combo {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
}

.page-products .pt-scenes__tags {
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-products .pt-scenes__tags-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-products .pt-tagrow {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

/* ---------- 使用流程 ---------- */
.page-products .pt-flow__figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-products .pt-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pt-gap);
}

.page-products .pt-step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2vw, 22px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  transition: border-color var(--t-mid), transform var(--t-mid), box-shadow var(--t-mid);
}

.page-products .pt-step:hover,
.page-products .pt-step:focus-within {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.page-products .pt-step__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-dark);
}

.page-products .pt-step__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.3;
}

.page-products .pt-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--mist);
  opacity: 0.82;
}

.page-products .pt-step__out {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--jade);
  line-height: 1.6;
}

/* ---------- 版本演进 ---------- */
.page-products .pt-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  overflow: hidden;
}

.page-products .pt-timeline__item {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--ink-deep);
}

.page-products .pt-timeline__year {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold-bright);
  margin-bottom: 10px;
}

.page-products .pt-timeline__title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.34;
}

.page-products .pt-timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 服务保障 ---------- */
.page-products .pt-guard__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .pt-guard__text {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
  opacity: 0.86;
}

.page-products .pt-guard__list {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  overflow: hidden;
}

.page-products .pt-guard__row {
  background: var(--surface);
  padding: 16px 18px;
}

.page-products .pt-guard__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--jade);
  margin: 0 0 6px;
}

.page-products .pt-guard__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.68;
  color: var(--mist);
}

/* ---------- 下一步 ---------- */
.page-products .pt-next__links {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--pt-radius);
  overflow: hidden;
}

.page-products .pt-next__links li {
  display: grid;
  gap: 5px;
  padding: 18px 20px;
  background: var(--ink-deep);
}

.page-products .pt-next__links a {
  justify-self: start;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--gold-bright);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-products .pt-next__links a:hover,
.page-products .pt-next__links a:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--line-strong);
}

.page-products .pt-next__links span {
  font-size: 14px;
  line-height: 1.64;
  color: var(--slate);
}

/* ---------- 断点 ---------- */
@media (min-width: 641px) {
  .page-products .pt-overview__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .page-products .pt-acc__list--cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px 20px;
  }
}

@media (min-width: 1025px) {
  .page-products .pt-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.85fr);
    gap: 56px;
  }

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

  .page-products .pt-modules__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: stretch;
  }

  .page-products .pt-span5 {
    grid-column: span 5;
  }

  .page-products .pt-span7 {
    grid-column: span 7;
  }

  .page-products .pt-span12 {
    grid-column: span 12;
  }

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

  .page-products .pt-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pt-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pt-guard__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pt-idx,
  .page-products .pt-step,
  .page-products .pt-acc__sum,
  .page-products .pt-next__links a {
    transition: none;
  }

  .page-products .pt-step:hover,
  .page-products .pt-step:focus-within {
    transform: none;
  }
}