.page-products {
  --prd-line: rgba(42, 53, 87, 0.9);
  --prd-line-soft: rgba(42, 53, 87, 0.55);
  --prd-strong: #E8ECF6;
  --prd-gap: clamp(16px, 2.6vw, 28px);
  position: relative;
  overflow-x: hidden;
  background: var(--sy-deep);
  color: var(--sy-mist);
  font-family: var(--sy-font);
  font-size: var(--sy-t4);
  line-height: 1.75;
  padding-bottom: clamp(36px, 6vw, 80px);
}

.page-products a {
  color: inherit;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--sy-font-display);
  color: var(--prd-strong);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
}

.page-products h1 {
  font-size: var(--sy-t1);
  font-weight: 800;
  max-width: 12em;
}

.page-products h2 {
  font-size: var(--sy-t2);
  font-weight: 800;
}

.page-products h3 {
  font-size: var(--sy-t3);
  font-weight: 700;
}

.page-products p {
  margin: 0 0 14px;
  max-width: 34em;
}

/* ---------- 面包屑 ---------- */

.page-products .prd-topbar {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */

.page-products .prd-hero {
  position: relative;
  padding-block: clamp(26px, 4vw, 44px) clamp(44px, 7vw, 84px);
  background-image: var(--sy-grid-pattern);
  background-size: 8px 8px;
  background-position: center;
}

.page-products .prd-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(130% 90% at 24% 6%, rgba(11, 19, 48, 0) 0%, rgba(11, 19, 48, 0.88) 68%);
  pointer-events: none;
}

.page-products .prd-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.page-products .prd-hero__copy .sy-eyebrow {
  margin: 0 0 14px;
}

.page-products .prd-hero__lead {
  margin-top: clamp(16px, 2.6vw, 24px);
  font-size: var(--sy-t4);
  line-height: 1.8;
  color: var(--sy-mist);
}

.page-products .prd-hero__index {
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-products .prd-hero__index a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas: "num name" "num hint";
  align-items: center;
  gap: 0 10px;
  padding: 10px 12px;
  border: 1px solid var(--prd-line);
  border-radius: var(--sy-radius-sm);
  background: rgba(22, 34, 74, 0.6);
  text-decoration: none;
  transition: border-color var(--sy-dur) var(--sy-ease), transform var(--sy-dur) var(--sy-ease);
}

.page-products .prd-hero__index a:hover,
.page-products .prd-hero__index a:focus-visible {
  border-color: var(--sy-gold-line);
  transform: translateY(-2px);
}

.page-products .prd-hero__num {
  grid-area: num;
  font-family: var(--sy-font-display);
  font-weight: 300;
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  color: var(--sy-gold);
  letter-spacing: 0.02em;
}

.page-products .prd-hero__name {
  grid-area: name;
  font-size: 14px;
  font-weight: 600;
  color: var(--prd-strong);
}

.page-products .prd-hero__hint {
  grid-area: hint;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sy-mist);
  opacity: 0.85;
}

.page-products .prd-orbit {
  position: relative;
  width: min(100%, 340px);
  margin-inline: auto;
  aspect-ratio: 1 / 1;
}

.page-products .prd-orbit svg {
  width: 100%;
  height: 100%;
  display: block;
  animation: prd-drift 14s ease-in-out infinite alternate;
}

@keyframes prd-drift {
  from { transform: translateY(0); }
  to { transform: translateY(-4px); }
}

/* ---------- 章节头 ---------- */

.page-products .prd-head {
  border-left: 1px solid var(--prd-line);
  padding-left: clamp(14px, 2.6vw, 26px);
  margin-bottom: clamp(24px, 4vw, 40px);
  max-width: 44em;
}

.page-products .prd-head__kicker {
  margin: 0 0 10px;
  font-size: var(--sy-t5);
  letter-spacing: 0.12em;
  color: var(--sy-gold);
  font-weight: 600;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .prd-head__num {
  font-family: var(--sy-font-display);
  font-weight: 200;
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1;
  color: rgba(242, 184, 87, 0.55);
}

.page-products .prd-head__lead {
  margin: 12px 0 0;
  color: var(--sy-mist);
}

/* ---------- 总览图 ---------- */

.page-products .prd-banner {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border-radius: var(--sy-radius);
  overflow: hidden;
  border: 1px solid var(--prd-line);
}

.page-products .prd-banner img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 产品线卡片 ---------- */

.page-products .prd-cards {
  display: grid;
  gap: var(--prd-gap);
}

.page-products .prd-card {
  position: relative;
  background: var(--sy-panel);
  border: 1px solid var(--prd-line);
  border-radius: var(--sy-radius);
  overflow: hidden;
  transition: border-color var(--sy-dur) var(--sy-ease);
}

.page-products .prd-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--sy-teal);
}

.page-products .prd-card--orange::before {
  background: var(--sy-orange);
}

.page-products .prd-card:hover {
  border-color: var(--sy-gold-line);
}

.page-products .prd-card__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas: "num title icon" "num sub icon";
  align-items: center;
  gap: 2px 14px;
  width: 100%;
  padding: 20px 16px 20px 20px;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-products .prd-card__num {
  grid-area: num;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--sy-gold-line);
  border-radius: 50%;
  color: var(--sy-gold);
  font-family: var(--sy-font-display);
  font-weight: 300;
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-products .prd-card__title {
  grid-area: title;
  font-family: var(--sy-font-display);
  font-size: var(--sy-t3);
  font-weight: 700;
  color: var(--prd-strong);
  letter-spacing: -0.01em;
}

.page-products .prd-card__sub {
  grid-area: sub;
  font-size: var(--sy-t5);
  line-height: 1.6;
  color: var(--sy-mist);
}

.page-products .prd-card__head .sy-collapse__icon {
  grid-area: icon;
}

.page-products .prd-card__body {
  padding: 0 18px 20px 20px;
}

.page-products .prd-card__body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--sy-mist);
}

.page-products .prd-card__link {
  display: inline-block;
  font-size: var(--sy-t5);
  letter-spacing: 0.04em;
  color: var(--sy-gold);
  text-decoration: none;
  border-bottom: 1px solid var(--sy-gold-line);
  padding-bottom: 2px;
}

.page-products .prd-card__link:hover,
.page-products .prd-card__link:focus-visible {
  color: var(--sy-gold-soft);
  border-bottom-color: var(--sy-gold-soft);
}

/* ---------- 图文分栏 ---------- */

.page-products .prd-split {
  display: grid;
  gap: clamp(22px, 4vw, 48px);
  align-items: center;
}

.page-products .prd-split__text p {
  color: var(--sy-mist);
}

.page-products .prd-points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prd-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--sy-mist);
}

.page-products .prd-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--sy-gold);
}

.page-products .prd-figure {
  margin: 0;
  border-radius: var(--sy-radius);
  overflow: hidden;
  border: 1px solid var(--prd-line);
}

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

.page-products .prd-figure .sy-media__caption {
  padding: 10px 14px 12px;
  font-size: var(--sy-t5);
  letter-spacing: 0.04em;
  color: var(--sy-mist);
  background: rgba(22, 34, 74, 0.6);
}

/* ---------- 对比带 ---------- */

.page-products .prd-compare {
  border-top: 1px solid var(--prd-line);
}

.page-products .prd-compare__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 14px 0;
  border-bottom: 1px solid var(--prd-line-soft);
  transition: background-color var(--sy-dur) var(--sy-ease);
}

.page-products .prd-compare__row--head {
  display: none;
}

.page-products .prd-compare__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--prd-strong);
  letter-spacing: 0.01em;
}

.page-products .prd-compare__cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: var(--sy-t5);
  letter-spacing: 0.06em;
  color: var(--sy-mist);
}

.page-products .prd-compare__name {
  display: inline-block;
}

.page-products .prd-dot {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--sy-mist);
  flex: none;
}

.page-products .prd-dot--full {
  background: var(--sy-gold);
  border-color: var(--sy-gold);
}

.page-products .prd-dot--half {
  background: linear-gradient(90deg, var(--sy-gold) 50%, transparent 50%);
  border-color: var(--sy-gold);
}

.page-products .prd-dot--none {
  background: transparent;
  border-color: var(--prd-line);
}

.page-products .prd-legend {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: var(--sy-t5);
  letter-spacing: 0.05em;
  color: var(--sy-mist);
}

.page-products .prd-legend li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ---------- 组合方案 ---------- */

.page-products .prd-paths {
  display: grid;
  gap: var(--prd-gap);
}

.page-products .prd-path {
  position: relative;
  padding: 22px 20px 20px;
  border: 1px solid var(--prd-line);
  border-radius: var(--sy-radius);
  background: rgba(22, 34, 74, 0.55);
}

.page-products .prd-path__step {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  border: 1px solid var(--sy-gold-line);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--sy-gold);
  font-variant-numeric: tabular-nums;
}

.page-products .prd-path p {
  color: var(--sy-mist);
  font-size: 15px;
}

.page-products .prd-path__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 12px 0 0;
  border-top: 1px dashed var(--prd-line);
  display: grid;
  gap: 8px;
}

.page-products .prd-path__list a {
  font-size: var(--sy-t5);
  letter-spacing: 0.04em;
  color: var(--sy-teal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: border-color var(--sy-dur) var(--sy-ease), color var(--sy-dur) var(--sy-ease);
}

.page-products .prd-path__list a:hover,
.page-products .prd-path__list a:focus-visible {
  color: var(--sy-gold);
  border-bottom-color: var(--sy-gold-line);
}

/* ---------- 文档分卷 ---------- */

.page-products .prd-docs {
  padding: clamp(20px, 4vw, 40px);
  border-radius: var(--sy-radius);
  color: var(--sy-ink);
}

.page-products .prd-docs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .prd-docs__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(20, 22, 28, 0.22);
}

.page-products .prd-docs__name {
  font-family: var(--sy-font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--sy-ink);
}

.page-products .prd-docs__vol {
  font-size: var(--sy-t5);
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(47, 191, 166, 0.22);
  color: #0C3B33;
}

.page-products .prd-docs__desc {
  font-size: var(--sy-t5);
  color: rgba(20, 22, 28, 0.72);
}

.page-products .prd-docs__note {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.75;
  max-width: 40em;
}

/* ---------- 下一步 ---------- */

.page-products .prd-next {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .prd-next__card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas: "num title" "num desc";
  align-items: center;
  gap: 2px 14px;
  padding: 16px 18px;
  border: 1px solid var(--prd-line);
  border-radius: var(--sy-radius-sm);
  background: rgba(22, 34, 74, 0.5);
  text-decoration: none;
  transition: border-color var(--sy-dur) var(--sy-ease), transform var(--sy-dur) var(--sy-ease);
}

.page-products .prd-next__card:hover,
.page-products .prd-next__card:focus-visible {
  border-color: var(--sy-gold-line);
  transform: translateY(-2px);
}

.page-products .prd-next__num {
  grid-area: num;
  font-size: 18px;
  color: var(--sy-gold);
  line-height: 1;
}

.page-products .prd-next__title {
  grid-area: title;
  font-family: var(--sy-font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--prd-strong);
}

.page-products .prd-next__desc {
  grid-area: desc;
  font-size: var(--sy-t5);
  letter-spacing: 0.03em;
  color: var(--sy-mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 600px) {
  .page-products .prd-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prd-compare__row {
    grid-template-columns: minmax(0, 2fr) repeat(4, minmax(0, 1fr));
    align-items: center;
    gap: 10px;
    padding: 14px 0;
  }

  .page-products .prd-compare__cell {
    justify-content: center;
  }

  .page-products .prd-compare__name {
    display: none;
  }

  .page-products .prd-compare__row--head {
    display: grid;
    border-bottom: 1px solid var(--prd-line);
  }

  .page-products .prd-compare__row--head .prd-compare__cell {
    font-size: 12px;
    letter-spacing: 0.1em;
    color: var(--sy-gold);
    font-weight: 600;
  }

  .page-products .prd-compare__row:hover {
    background: rgba(22, 34, 74, 0.55);
  }
}

@media (min-width: 820px) {
  .page-products .prd-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .prd-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .prd-hero__index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 480px;
  }

  .page-products .prd-cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .prd-card:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-products .prd-card:nth-child(2) {
    grid-column: 9 / span 4;
    margin-top: 44px;
  }

  .page-products .prd-card:nth-child(3) {
    grid-column: 1 / span 4;
  }

  .page-products .prd-card:nth-child(4) {
    grid-column: 6 / span 7;
    margin-top: 28px;
  }

  .page-products .prd-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-products .prd-split--flip .prd-split__text {
    order: 2;
  }

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

@media (min-width: 1180px) {
  .page-products .prd-hero {
    padding-block: clamp(34px, 4vw, 56px) clamp(64px, 6vw, 96px);
  }

  .page-products .prd-head {
    max-width: 40em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prd-orbit svg {
    animation: none;
  }

  .page-products .prd-hero__index a,
  .page-products .prd-next__card {
    transition: none;
  }
}
<<<END>>>