.page-products {
  --pd-line: rgba(30, 74, 102, 0.55);
  --pd-line-strong: rgba(57, 230, 255, 0.35);
  --pd-sheen: rgba(57, 230, 255, 0.08);
}

.page-products a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 230, 255, 0.35);
}

.page-products a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.page-products .pd-hero__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .pd-hero__copy h1 {
  margin: 0.35rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--paper);
}

.page-products .pd-hero__copy .lede {
  margin: 0 0 1.5rem;
  max-width: 68ch;
  color: var(--steel);
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  line-height: 1.8;
}

.page-products .pd-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.page-products .pd-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pd-line);
}

.page-products .pd-quick__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.85rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--pd-line);
}

.page-products .pd-quick__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--paper);
  border-bottom: 0;
}

.page-products .pd-quick__link:hover {
  color: var(--cyan);
}

.page-products .pd-quick__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-products .pd-quick__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel-dim);
  letter-spacing: 0.03em;
}

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

.page-products .pd-gauge {
  display: flex;
  gap: 6px;
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--pd-line);
}

.page-products .pd-gauge__tick {
  flex: 1;
  height: 3px;
  background: var(--rail);
}

.page-products .pd-gauge__tick--hot {
  background: var(--gold);
  box-shadow: 0 0 12px rgba(244, 184, 96, 0.5);
}

/* ---------- 章节骨架 ---------- */
.page-products .pd-section {
  position: relative;
  border-top: 1px solid var(--pd-line);
}

.page-products .pd-slant {
  overflow: hidden;
}

.page-products .pd-slant::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 60%;
  background: linear-gradient(160deg, rgba(11, 39, 64, 0.9), rgba(110, 79, 130, 0.16) 70%, transparent);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
  pointer-events: none;
}

.page-products .pd-section--dark {
  background: linear-gradient(180deg, rgba(3, 32, 46, 0.95), rgba(6, 24, 38, 0.85));
}

.page-products .pd-section > .container {
  position: relative;
  z-index: 1;
}

.page-products .pd-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1rem;
  align-items: start;
  padding-bottom: 1.1rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--pd-line-strong);
}

.page-products .pd-head .index {
  font-size: clamp(1.9rem, 5vw, 2.75rem);
  line-height: 1;
  color: var(--gold);
}

.page-products .pd-head__text h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--paper);
}

.page-products .pd-head__text p {
  margin: 0;
  max-width: 70ch;
  color: var(--steel);
  font-size: 0.95rem;
  line-height: 1.8;
}

.page-products .pd-ver {
  position: relative;
  grid-column: 1 / -1;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--gold);
  border-radius: 2px;
  cursor: default;
}

.page-products .pd-ver__pop {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: max-content;
  max-width: 240px;
  padding: 0.5rem 0.7rem;
  background: var(--panel);
  border: 1px solid var(--gold);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0;
  z-index: 4;
}

.page-products .pd-ver:hover .pd-ver__pop,
.page-products .pd-ver:focus-within .pd-ver__pop {
  display: block;
}

/* ---------- 01 入口 ---------- */
.page-products .pd-split {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: 1fr;
}

.page-products .pd-points {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-products .pd-points__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  padding: 0.9rem 1rem;
  background: rgba(3, 32, 46, 0.6);
  border-left: 2px solid var(--rail);
}

.page-products .pd-points__dot {
  width: 9px;
  height: 9px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(57, 230, 255, 0.7);
}

.page-products .pd-points__item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pd-points__item p {
  margin: 0;
  color: var(--steel);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-products .pd-note {
  margin: 0;
  padding-left: 0.9rem;
  border-left: 1px solid var(--pd-line-strong);
  color: var(--steel-dim);
  font-size: 0.86rem;
  line-height: 1.8;
}

/* ---------- 02 设置清单 ---------- */
.page-products .pd-settings {
  display: grid;
  gap: 0.75rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .pd-group {
  border: 1px solid var(--pd-line);
  background: var(--panel);
}

.page-products .pd-group[open] {
  border-color: var(--pd-line-strong);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-products .pd-group__summary {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

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

.page-products .pd-group[open] .pd-group__summary::after {
  content: "−";
  color: var(--gold);
}

.page-products .pd-group__num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--gold);
}

.page-products .pd-group__title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pd-group__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel-dim);
  letter-spacing: 0.05em;
}

.page-products .pd-group__list {
  list-style: none;
  margin: 0;
  padding: 0 1rem 1rem 1rem;
  display: grid;
  gap: 0.55rem;
}

.page-products .pd-group__list li {
  display: block;
  padding: 0.55rem 0.7rem;
  color: var(--steel);
  font-size: 0.88rem;
  line-height: 1.7;
  background: rgba(11, 39, 64, 0.55);
  border-left: 1px solid var(--rail);
}

.page-products .pd-group__list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .pd-figure {
  margin: 0;
}

.page-products .pd-figure--narrow {
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
}

/* ---------- 03 适配矩阵 ---------- */
.page-products .pd-adapter {
  position: relative;
}

.page-products .pd-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.page-products .pd-filter__label {
  padding: 0.4rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--steel);
  background: rgba(11, 39, 64, 0.8);
  border: 1px solid var(--pd-line);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-products .pd-filter__label:hover {
  color: var(--cyan);
  border-color: var(--pd-line-strong);
}

.page-products #pd-f-all:checked ~ .pd-filter label[for="pd-f-all"],
.page-products #pd-f-desktop:checked ~ .pd-filter label[for="pd-f-desktop"],
.page-products #pd-f-tablet:checked ~ .pd-filter label[for="pd-f-tablet"],
.page-products #pd-f-mobile:checked ~ .pd-filter label[for="pd-f-mobile"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products .pd-matrix {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.page-products .pd-adapt {
  display: grid;
  gap: 0.35rem;
  padding: 0.9rem 1rem 1rem;
  background: rgba(3, 32, 46, 0.75);
  border: 1px solid var(--pd-line);
  border-top: 2px solid var(--rail);
}

.page-products .pd-adapt__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pd-adapt__note {
  margin: 0;
  color: var(--steel-dim);
  font-size: 0.82rem;
  line-height: 1.7;
}

.page-products .pd-badge {
  justify-self: start;
  margin-top: 0.35rem;
  padding: 0.15rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  border: 1px solid currentColor;
}

.page-products .pd-badge--ok {
  color: var(--cyan);
  background: rgba(57, 230, 255, 0.08);
}

.page-products .pd-badge--alt {
  color: var(--gold);
  background: rgba(244, 184, 96, 0.1);
}

.page-products .pd-adapter:has(#pd-f-desktop:checked) .pd-adapt:not([data-type="desktop"]),
.page-products .pd-adapter:has(#pd-f-tablet:checked) .pd-adapt:not([data-type="tablet"]),
.page-products .pd-adapter:has(#pd-f-mobile:checked) .pd-adapt:not([data-type="mobile"]) {
  display: none;
}

/* ---------- 04 版本与回访 ---------- */
.page-products .pd-version {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: 1fr;
}

.page-products .pd-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.1rem;
  border-left: 1px solid var(--pd-line-strong);
  display: grid;
  gap: 1.25rem;
}

.page-products .pd-timeline__item {
  position: relative;
  display: grid;
  gap: 0.3rem;
}

.page-products .pd-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.45rem;
  top: 0.45rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
}

.page-products .pd-timeline__year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-products .pd-timeline__text h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pd-timeline__text p {
  margin: 0;
  color: var(--steel-dim);
  font-size: 0.86rem;
  line-height: 1.75;
}

.page-products .pd-version__path {
  padding: clamp(1.1rem, 3vw, 1.75rem);
  background: rgba(3, 32, 46, 0.85);
  border: 1px solid var(--pd-line);
  border-top: 2px solid var(--gold);
}

.page-products .pd-version__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .pd-steps {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-products .pd-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
}

.page-products .pd-steps__num {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(57, 230, 255, 0.45);
}

.page-products .pd-steps__item h4 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pd-steps__item p {
  margin: 0;
  color: var(--steel);
  font-size: 0.86rem;
  line-height: 1.75;
}

/* ---------- 05 问答入口 ---------- */
.page-products .pd-links {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr;
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
}

.page-products .pd-link {
  display: block;
  padding: 1.1rem 1.15rem 1.2rem;
  background: rgba(11, 39, 64, 0.7);
  border: 1px solid var(--pd-line);
  border-left: 2px solid var(--rail);
  color: var(--paper);
  border-bottom: 1px solid var(--pd-line);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-products .pd-link:hover {
  border-left-color: var(--gold);
  border-color: var(--pd-line-strong);
  background: rgba(11, 39, 64, 0.95);
  box-shadow: 0 0 0 1px rgba(57, 230, 255, 0.18), 0 10px 30px rgba(0, 0, 0, 0.35);
  color: var(--paper);
}

.page-products .pd-link__kicker {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .pd-link__title {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .pd-link__text {
  margin: 0 0 0.8rem;
  color: var(--steel-dim);
  font-size: 0.85rem;
  line-height: 1.75;
}

.page-products .pd-link__go {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-products .pd-tail {
  display: grid;
  gap: 1rem;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  background: rgba(3, 32, 46, 0.7);
  border: 1px solid var(--pd-line-strong);
}

.page-products .pd-tail p {
  margin: 0;
  color: var(--steel);
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-products .pd-tail .btn {
  justify-self: start;
  border-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .pd-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .pd-head {
    grid-template-columns: auto 1fr auto;
    align-items: start;
  }

  .page-products .pd-ver {
    grid-column: 3;
    justify-self: end;
  }

  .page-products .pd-tail {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-products .pd-hero__inner {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-products .pd-hero__media {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-products .pd-split {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-products .pd-version {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

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

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

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

  .page-products .pd-group__list {
    column-gap: 1rem;
  }
}
<<<END>>>