.page-products {
  --fp-card-line: rgba(127, 211, 238, 0.18);
  --fp-card-line-strong: rgba(127, 211, 238, 0.34);
  --fp-soft-text: rgba(246, 241, 231, 0.78);
  --fp-soft-text-2: rgba(246, 241, 231, 0.88);
  --fp-gap: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */

.page-products .products-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(40px, 8vw, 86px)) 0 clamp(40px, 7vw, 76px);
}

.page-products .products-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -22%;
  width: 68%;
  height: 74%;
  background: linear-gradient(136deg, rgba(23, 162, 214, 0.26), rgba(23, 162, 214, 0) 66%);
  transform: skewX(-18deg);
  pointer-events: none;
}

.page-products .products-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--header-h) + 22px);
  width: 3px;
  height: clamp(90px, 18vw, 170px);
  background: linear-gradient(180deg, var(--accent), var(--pulse));
  pointer-events: none;
}

.page-products .products-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .products-hero .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-products .products-hero__note {
  position: absolute;
  right: clamp(8px, 2.4vw, 30px);
  top: 46%;
  transform: rotate(90deg);
  transform-origin: right center;
  white-space: nowrap;
  z-index: 2;
  pointer-events: none;
}

.page-products .products-hero__title {
  margin: clamp(10px, 2vw, 18px) 0 clamp(18px, 3vw, 28px);
  font-size: clamp(40px, 10.4vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .products-hero__lede {
  max-width: 46ch;
  color: var(--fp-soft-text-2);
}

.page-products .products-hero__strip {
  display: flex;
  gap: clamp(20px, 4vw, 44px);
  margin: clamp(28px, 5vw, 48px) 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .products-hero__strip::-webkit-scrollbar {
  height: 3px;
}

.page-products .products-hero__strip::-webkit-scrollbar-track {
  background: rgba(127, 211, 238, 0.16);
}

.page-products .products-hero__strip::-webkit-scrollbar-thumb {
  background: var(--brand);
  border-radius: var(--pill);
}

.page-products .strip-item {
  flex: 0 0 auto;
  min-width: 132px;
  scroll-snap-align: start;
  padding-top: 12px;
  border-top: 2px solid var(--brand);
}

.page-products .strip-item__num {
  display: block;
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
}

.page-products .strip-item__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--brand-soft);
}

.page-products .products-hero__hint {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 索引矩阵 ---------- */

.page-products .products-index {
  position: relative;
  padding: clamp(46px, 8vw, 92px) 0 clamp(78px, 13vw, 140px);
}

.page-products .products-index::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(34px, 7vw, 66px);
  background: var(--ink);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-products .products-index__head {
  max-width: 52ch;
  margin-bottom: clamp(22px, 3.6vw, 34px);
}

.page-products .index-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-products .index-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--rule);
  background: var(--paper-raise);
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: background 160ms var(--ease-out), border-color 160ms var(--ease-out), color 160ms var(--ease-out);
}

.page-products .index-pill:hover,
.page-products .index-pill:focus-visible {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.page-products .index-matrix {
  margin: 0;
  border-top: 1px solid var(--rule);
}

.page-products .index-matrix__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.page-products .index-matrix dt {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-products .index-matrix dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 字段卡片区 ---------- */

.page-products .products-fields {
  position: relative;
  overflow: hidden;
  padding: clamp(50px, 9vw, 104px) 0 clamp(56px, 9vw, 112px);
}

.page-products .products-fields::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 211, 238, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 211, 238, 0.07) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.92), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.92), transparent 88%);
  pointer-events: none;
}

.page-products .products-fields__inner {
  position: relative;
  z-index: 1;
}

.page-products .products-fields__head {
  max-width: 52ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-products .fields-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-products .field-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--ink-deep);
  border: 1px solid var(--fp-card-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  color: var(--paper);
  transition: border-color 160ms var(--ease-out);
}

.page-products .field-card:hover,
.page-products .field-card:focus-within {
  border-color: var(--fp-card-line-strong);
}

.page-products .field-card__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}

.page-products .field-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 170px;
  max-height: 260px;
  object-fit: cover;
  filter: saturate(0.72);
}

.page-products .field-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 27, 51, 0.12) 0%, rgba(7, 21, 39, 0.86) 100%);
  pointer-events: none;
}

.page-products .field-card__tag {
  position: absolute;
  left: clamp(14px, 2vw, 22px);
  bottom: clamp(12px, 1.8vw, 18px);
  z-index: 2;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pulse);
}

.page-products .field-card__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  padding: clamp(18px, 2.4vw, 28px);
}

.page-products .field-card__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .field-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fp-soft-text);
}

.page-products .field-card--plain .field-card__body {
  gap: 16px;
}

.page-products .formula {
  margin: 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(255, 106, 43, 0.1);
  font-size: clamp(14px, 2vw, 17px);
  color: var(--paper);
}

/* ---------- 展开面板 ---------- */

.page-products .field-details {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--fp-card-line);
}

.page-products .field-details summary {
  display: flex;
  align-items: center;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--brand-soft);
  transition: color 160ms var(--ease-out);
}

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

.page-products .field-details summary::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 3px rgba(180, 255, 87, 0.18);
  flex: 0 0 auto;
}

.page-products .field-details summary::after {
  content: "";
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 160ms var(--ease-out);
}

.page-products .field-details summary:hover {
  color: var(--paper);
}

.page-products .field-details summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-products .field-details[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

.page-products .field-details__list {
  display: grid;
  gap: 12px;
  margin: 6px 0 4px;
  padding: 0;
}

.page-products .field-details__list > div {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid rgba(255, 106, 43, 0.55);
}

.page-products .field-details__list dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--brand);
}

.page-products .field-details__list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fp-soft-text-2);
}

/* ---------- 底部边界区 ---------- */

.page-products .products-edge {
  padding: clamp(50px, 8vw, 100px) 0 clamp(56px, 9vw, 108px);
}

.page-products .products-edge__inner {
  display: grid;
  gap: clamp(30px, 4.4vw, 52px);
}

.page-products .products-edge__lead > .prose {
  max-width: 40ch;
}

.page-products .edge-steps {
  display: grid;
  gap: 18px;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .edge-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.page-products .edge-step__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 28px;
  border-radius: var(--pill);
  background: var(--ink);
  color: var(--brand-soft);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-products .edge-step__title {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--text);
}

.page-products .edge-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .edge-mobile {
  margin: clamp(22px, 3.4vw, 30px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--brand);
  background: var(--paper-raise);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-products .products-edge__notes {
  display: grid;
  gap: 16px;
}

.page-products .edge-note {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: transparent;
}

.page-products .edge-note:first-child {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-products .edge-note__title {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
}

.page-products .edge-note:first-child .edge-note__title {
  color: var(--paper);
}

.page-products .edge-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

.page-products .edge-note:first-child p {
  color: var(--fp-soft-text-2);
}

.page-products .edge-links {
  display: grid;
  gap: 0;
  margin-top: 6px;
  border-top: 1px solid var(--rule);
}

.page-products .edge-links .link-line {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  transition: color 160ms var(--ease-out), padding-left 160ms var(--ease-out);
}

.page-products .edge-links .link-line::before {
  content: "→";
  margin-right: 10px;
  color: var(--accent);
  font-size: 14px;
}

.page-products .edge-links .link-line:hover,
.page-products .edge-links .link-line:focus-visible {
  color: var(--brand);
  padding-left: 6px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 720px) {
  .page-products .index-matrix__row {
    grid-template-columns: minmax(150px, 210px) 1fr;
    gap: 24px;
    align-items: baseline;
  }

  .page-products .edge-step {
    grid-template-columns: 62px 1fr;
    gap: 18px;
  }

  .page-products .edge-step__idx {
    width: 62px;
  }
}

@media (min-width: 900px) {
  .page-products .products-hero {
    padding-top: calc(var(--header-h) + 92px);
  }

  .page-products .fields-grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-products .field-card--split {
    grid-column: span 12;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-products .field-card--split .field-card__media {
    height: 100%;
  }

  .page-products .field-card--split .field-card__media img {
    max-height: none;
    min-height: 100%;
  }

  .page-products .field-card--half {
    grid-column: span 6;
  }

  .page-products .field-card--plain {
    grid-column: span 12;
  }

  .page-products .field-card--seven {
    grid-column: span 7;
  }

  .page-products .field-card--five {
    grid-column: span 5;
  }

  .page-products .field-card--plain .field-card__body {
    padding: clamp(26px, 3vw, 40px);
  }

  .page-products .field-card--plain .field-card__text {
    max-width: 68ch;
    font-size: 16px;
  }

  .page-products .products-edge__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-products .products-edge__lead {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (min-width: 1180px) {
  .page-products .products-hero__strip {
    gap: 52px;
  }

  .page-products .strip-item {
    min-width: 158px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .index-pill,
  .page-products .field-card,
  .page-products .field-details summary,
  .page-products .field-details summary::after,
  .page-products .edge-links .link-line {
    transition: none;
  }
}
<<<END>>>
</main>