.page-products {
  --pr-rail-w: 200px;
  --pr-paper-ink: #0B1E33;
  --pr-paper-soft: rgba(11, 30, 51, 0.72);
  display: block;
  color: var(--yl-paper);
  background:
    radial-gradient(1100px 620px at 88% -8%, rgba(226, 179, 60, 0.12), transparent 62%),
    radial-gradient(900px 520px at 6% 32%, rgba(30, 90, 138, 0.28), transparent 65%),
    linear-gradient(180deg, var(--yl-deep) 0%, var(--yl-deep) 46%, var(--yl-deep-2) 100%);
  overflow-x: hidden;
}

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

/* ---------- 面包屑与首屏 ---------- */
.page-products .pr-context {
  padding-top: clamp(18px, 3vw, 32px);
}

.page-products .pr-context .yl-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--yl-text-faint);
}

.page-products .pr-context .yl-breadcrumb__list a {
  color: var(--yl-text-soft);
  text-decoration: none;
}

.page-products .pr-context .yl-breadcrumb__list a:hover {
  color: var(--yl-gold);
}

.page-products .pr-hero {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(32px, 5vw, 72px);
  position: relative;
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0 var(--yl-gutter) auto;
  height: 1px;
  background: var(--yl-line);
}

.page-products .pr-hero__title {
  margin: 14px 0 0;
  max-width: 16ch;
  line-height: 1.06;
  letter-spacing: 0.04em;
  color: var(--yl-paper);
}

.page-products .pr-hero__lede {
  margin: 22px 0 0;
  max-width: 38ch;
  color: var(--yl-text-soft);
}

.page-products .pr-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--yl-line-gold);
}

.page-products .pr-hero__facts .yl-mono {
  font-size: 26px;
  font-weight: 700;
  color: var(--yl-gold);
  line-height: 1;
}

.page-products .pr-hero__facts em {
  font-style: normal;
  font-size: 13px;
  color: var(--yl-text-faint);
}

.page-products .pr-hero__figure {
  margin: clamp(28px, 5vw, 56px) 0 0;
}

.page-products .pr-figure {
  margin: clamp(24px, 4vw, 44px) 0 0;
}

.page-products .yl-figure img {
  width: 100%;
  border-radius: var(--yl-radius);
  border: 1px solid var(--yl-line);
}

.page-products .yl-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--yl-text-faint);
}

/* ---------- 主体：左侧索引 + 右侧章节 ---------- */
.page-products .pr-sheet {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(40px, 6vw, 96px);
}

.page-products .pr-rail {
  position: relative;
}

.page-products .pr-rail__title {
  margin: 0 0 12px;
  font-family: var(--yl-font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--yl-rock-soft);
}

.page-products .pr-rail__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pr-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--yl-line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--yl-text-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.3s var(--yl-ease), color 0.3s var(--yl-ease), background 0.3s var(--yl-ease);
}

.page-products .pr-rail__link .yl-mono {
  color: var(--yl-gold);
  font-size: 11px;
}

.page-products .pr-rail__link:hover,
.page-products .pr-rail__link:focus-visible {
  border-color: var(--yl-line-gold);
  color: var(--yl-paper);
  background: rgba(226, 179, 60, 0.08);
}

.page-products .pr-body {
  min-width: 0;
}

.page-products .pr-block {
  padding: clamp(28px, 4vw, 52px) 0;
  border-top: 1px solid var(--yl-line);
}

.page-products .pr-block:first-child {
  border-top: none;
  padding-top: 0;
}

.page-products .pr-block[data-chapter].is-visible .yl-chapter__num {
  color: var(--yl-gold);
  border-color: var(--yl-line-gold);
}

.page-products .yl-chapter {
  position: relative;
  padding-left: 56px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .yl-chapter__num {
  position: absolute;
  left: 0;
  top: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--yl-line);
  border-radius: 50%;
  font-family: var(--yl-font-mono);
  font-size: 14px;
  color: var(--yl-rock-soft);
  transition: color 0.4s var(--yl-ease), border-color 0.4s var(--yl-ease);
}

.page-products .yl-chapter__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--yl-paper);
  line-height: 1.2;
}

.page-products .yl-chapter__note {
  margin: 10px 0 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yl-text-faint);
}

.page-products .pr-block__text {
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--yl-text-soft);
  margin: 0;
}

/* ---------- 01 两步 ---------- */
.page-products .pr-steps {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .pr-step {
  position: relative;
  padding: 22px 20px 22px 24px;
  background: rgba(30, 90, 138, 0.14);
  border: 1px solid var(--yl-line);
  border-left: 3px solid var(--yl-gold);
  border-radius: var(--yl-radius);
}

.page-products .pr-step__idx {
  display: block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--yl-gold);
  margin-bottom: 10px;
}

.page-products .pr-step__title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  color: var(--yl-paper);
}

.page-products .pr-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yl-text-soft);
}

.page-products .pr-note-line {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  border-left: 1px solid var(--yl-line-gold);
}

.page-products .pr-note-line p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--yl-text-soft);
  max-width: 52ch;
}

/* ---------- 02 大屏 ---------- */
.page-products .pr-screen {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--yl-line);
  border-radius: var(--yl-radius-lg);
  padding: clamp(22px, 3.6vw, 40px);
  background:
    radial-gradient(620px 320px at 82% 0%, rgba(226, 179, 60, 0.18), transparent 62%),
    radial-gradient(560px 360px at 4% 100%, rgba(30, 90, 138, 0.42), transparent 66%),
    linear-gradient(160deg, #0d2540 0%, #0a1a2c 100%);
}

.page-products .pr-screen__body {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-products .pr-screen__lead {
  margin: 0 0 20px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--yl-text-soft);
}

.page-products .pr-screen__list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-screen__item {
  padding: 12px 0 12px 16px;
  border-left: 2px solid rgba(226, 179, 60, 0.4);
  font-size: 15px;
  line-height: 1.8;
  color: var(--yl-text-soft);
}

.page-products .pr-screen__item strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--yl-paper);
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.page-products .pr-screen__glow {
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(111, 158, 136, 0.32), transparent 68%);
  pointer-events: none;
  animation: pr-breathe 6s ease-in-out infinite;
}

@keyframes pr-breathe {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

/* ---------- 03 对照台 ---------- */
.page-products .pr-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.page-products .pr-filter {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--yl-paper);
  background: rgba(111, 158, 136, 0.18);
  border: 1px solid rgba(111, 158, 136, 0.42);
}

.page-products .pr-compare {
  border: 1px solid var(--yl-line);
  border-radius: var(--yl-radius);
  background: rgba(11, 30, 51, 0.5);
  padding: 4px clamp(16px, 3vw, 28px);
}

.page-products .pr-compare__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--yl-line);
}

.page-products .pr-compare__row:last-child {
  border-bottom: none;
}

.page-products .pr-compare__key {
  font-family: var(--yl-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--yl-gold);
}

.page-products .pr-compare__val {
  font-size: 15px;
  line-height: 1.85;
  color: var(--yl-text-soft);
}

/* ---------- 04 资讯栏目 ---------- */
.page-products .pr-newsbar {
  display: grid;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--yl-radius);
  border: 1px solid var(--yl-line);
  background: linear-gradient(90deg, rgba(18, 58, 94, 0.9), rgba(11, 30, 51, 0.7));
}

.page-products .pr-newsbar__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--yl-rock-soft);
  text-transform: uppercase;
}

.page-products .pr-newsbar__list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-products .pr-newsbar__item {
  flex: 0 0 auto;
  padding: 8px 15px;
  border-radius: var(--yl-radius-sm);
  font-size: 14px;
  color: var(--yl-text-soft);
  background: rgba(246, 241, 231, 0.05);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.page-products .pr-newsbar__item.is-current {
  color: var(--yl-deep);
  background: var(--yl-gold);
  border-bottom-color: var(--yl-gold-soft);
  font-weight: 700;
}

.page-products .pr-newsbar + .pr-block__text {
  margin-top: 20px;
}

/* ---------- 05 反馈 ---------- */
.page-products .pr-feedback {
  display: grid;
  gap: 20px;
}

.page-products .pr-feedback__fields {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-field {
  padding: 14px 16px;
  border: 1px solid var(--yl-line);
  border-radius: var(--yl-radius-sm);
  background: rgba(246, 241, 231, 0.04);
}

.page-products .pr-field__label {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--yl-paper);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.page-products .pr-field__hint {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--yl-text-faint);
}

.page-products .pr-feedback__note {
  margin: 0;
  padding: 16px 18px;
  border-left: 3px solid var(--yl-clay);
  border-radius: 0 var(--yl-radius-sm) var(--yl-radius-sm) 0;
  background: rgba(196, 115, 90, 0.12);
  font-size: 15px;
  line-height: 1.85;
  color: var(--yl-text-soft);
  max-width: 56ch;
}

/* ---------- 06 设备适配（浅色区块） ---------- */
.page-products .pr-block--paper {
  margin-top: clamp(24px, 4vw, 48px);
  padding: clamp(26px, 4vw, 44px);
  border-radius: var(--yl-radius-lg);
  border: 1px solid rgba(11, 30, 51, 0.12);
  background: var(--yl-paper);
  color: var(--pr-paper-ink);
}

.page-products .pr-block--paper .yl-chapter__title {
  color: var(--pr-paper-ink);
}

.page-products .pr-block--paper .yl-chapter__note {
  color: var(--pr-paper-soft);
}

.page-products .pr-block--paper .yl-chapter__num {
  border-color: rgba(11, 30, 51, 0.18);
  color: var(--yl-rock);
}

.page-products .pr-device {
  display: grid;
  gap: 18px;
}

.page-products .pr-device__col {
  padding-top: 14px;
  border-top: 2px solid var(--yl-tide);
}

.page-products .pr-device__name {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--pr-paper-ink);
}

.page-products .pr-device__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pr-paper-soft);
}

.page-products .pr-device__foot {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(11, 30, 51, 0.14);
  font-size: 14px;
  line-height: 1.9;
  color: var(--pr-paper-soft);
  max-width: 62ch;
}

/* ---------- 服务规模 ---------- */
.page-products .pr-stats-band {
  border-top: 1px solid var(--yl-line);
  border-bottom: 1px solid var(--yl-line);
  background: rgba(11, 30, 51, 0.55);
  padding: clamp(26px, 4vw, 48px) 0;
}

.page-products .pr-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
}

.page-products .pr-stat {
  display: grid;
  gap: 6px;
}

.page-products .pr-stat__num {
  font-size: clamp(28px, 6vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--yl-gold);
  letter-spacing: 0.02em;
}

.page-products .pr-stat__label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--yl-text-faint);
}

/* ---------- 结尾行动区 ---------- */
.page-products .pr-cta {
  padding: clamp(32px, 5vw, 64px) 0 clamp(48px, 7vw, 96px);
  display: grid;
  gap: 20px;
}

.page-products .pr-cta__text {
  margin: 0;
  max-width: 44ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--yl-text-soft);
}

.page-products .pr-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pr-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-products .pr-compare__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-products .pr-feedback {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
}

@media (min-width: 1000px) {
  .page-products .pr-sheet {
    grid-template-columns: var(--pr-rail-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-products .pr-rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-products .pr-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 4px;
  }

  .page-products .pr-rail__link {
    border: none;
    border-left: 2px solid var(--yl-line);
    border-radius: 0;
    padding: 9px 0 9px 14px;
    background: none;
  }

  .page-products .pr-rail__link:hover,
  .page-products .pr-rail__link:focus-visible {
    border-left-color: var(--yl-gold);
    background: none;
  }

  .page-products .yl-chapter {
    padding-left: 72px;
  }

  .page-products .yl-chapter__num {
    width: 48px;
    height: 48px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-screen__glow {
    animation: none;
  }

  .page-products .pr-rail__link,
  .page-products .yl-chapter__num {
    transition: none;
  }
}
<<<END>>>