.page-products {
  --prod-tint: #F0E9DF;
  --prod-tint-deep: #E3D6C4;
  --prod-navy-soft: #123452;
  --prod-gold-soft: #E8C97E;
  --prod-line: rgba(11, 42, 70, 0.16);
  --prod-font-display: "Montserrat Black", "Helvetica Neue", "Arial Black", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --prod-font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--color-paper);
  color: var(--color-ink);
}

.page-products .container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-products .prod-hero {
  background: var(--color-navy);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background: linear-gradient(135deg, rgba(212, 168, 67, 0.16), rgba(255, 94, 43, 0.08) 70%, transparent);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--color-gold) 0 38%, var(--color-orange) 38% 62%, var(--color-gold) 62% 100%);
}

.page-products .breadcrumb {
  padding-top: 1.25rem;
  position: relative;
  z-index: 2;
}

.page-products .breadcrumb__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(246, 241, 235, 0.62);
}

.page-products .breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-products .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(246, 241, 235, 0.32);
}

.page-products .breadcrumb__link {
  color: var(--color-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-products .breadcrumb__link:hover {
  color: var(--color-orange);
}

.page-products .breadcrumb__current {
  color: rgba(246, 241, 235, 0.9);
}

.page-products .prod-hero__inner {
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
  gap: 2rem;
  padding-top: 2rem;
  padding-bottom: 4.5rem;
}

.page-products .prod-hero__copy {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-products .prod-hero__kicker {
  font-family: var(--prod-font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: rgba(212, 168, 67, 0.14);
  border-left: 4px solid var(--color-gold);
  padding: 0.6rem 0.9rem;
  margin: 0 0 1rem;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 12px 100%);
}

.page-products .prod-hero h1 {
  font-family: var(--prod-font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.08;
  margin: 0 0 1rem;
  max-width: 12em;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.page-products .prod-hero__lead {
  font-size: clamp(1rem, 1.4vw, 1.1875rem);
  line-height: 1.75;
  max-width: 31em;
  margin: 0 0 1.5rem;
  color: rgba(246, 241, 235, 0.8);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.page-products .prod-hero .btn-primary {
  background: var(--color-orange);
  border: 1px solid var(--color-orange);
  color: var(--color-white);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 100%, 14px 100%);
}

.page-products .prod-hero .btn-outline {
  background: transparent;
  border: 1px solid rgba(246, 241, 235, 0.36);
  color: var(--color-paper);
}

.page-products .prod-hero .btn-outline:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-products .prod-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(246, 241, 235, 0.18);
  width: 100%;
}

.page-products .prod-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-products .prod-hero__fact dt {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin: 0;
}

.page-products .prod-hero__fact dd {
  font-size: 0.9375rem;
  color: rgba(246, 241, 235, 0.82);
  margin: 0;
  line-height: 1.5;
}

.page-products .prod-hero__visual {
  margin: 0;
  flex: 1;
  min-width: 0;
}

.page-products .prod-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  clip-path: polygon(2% 0, 100% 0, 98% 96%, 0 100%);
}

.page-products .prod-overview {
  padding-top: 4rem;
  padding-bottom: 4rem;
  background:
    linear-gradient(135deg, transparent 0 22%, rgba(11, 42, 70, 0.03) 22% 24%, transparent 24% 100%),
    var(--color-paper);
}

.page-products .prod-section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--prod-font-display);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-orange);
  background: rgba(255, 94, 43, 0.1);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.page-products .prod-section-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-orange);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.page-products .prod-section-tag--dark {
  background: rgba(212, 168, 67, 0.14);
  color: var(--color-gold);
}

.page-products .prod-section-tag--dark::before {
  background: var(--color-gold);
}

.page-products .prod-section-tag--on-dark {
  background: rgba(212, 168, 67, 0.2);
  color: var(--color-gold-light);
}

.page-products .prod-overview__head {
  margin-bottom: 2.5rem;
}

.page-products .prod-overview__head h2,
.page-products .prod-compare__head h2,
.page-products .prod-guide__head h2,
.page-products .prod-archive__head h2,
.page-products .prod-dataflow__head h2 {
  font-family: var(--prod-font-display);
  color: var(--color-navy);
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  line-height: 1.1;
  margin: 0 0 0.75rem;
}

.page-products .prod-overview__lead,
.page-products .prod-compare__note,
.page-products .prod-guide__lead,
.page-products .prod-archive__lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-steel);
  max-width: 38em;
  margin: 0;
}

.page-products .prod-overview__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .prod-overview__content {
  min-width: 0;
}

.page-products .prod-overview__text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-ink);
  margin: 0 0 1rem;
}

.page-products .prod-overview__points {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-products .prod-overview__point {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  background: var(--color-white);
  border-left: 4px solid var(--color-gold);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow-sm);
}

.page-products .prod-overview__rings {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(160deg, var(--color-navy) 0 46%, var(--color-white) 46%);
  border-radius: var(--radius-lg);
  padding: 2rem 1rem;
  box-shadow: var(--shadow-md);
}

.page-products .prod-rings {
  width: 100%;
  height: auto;
  max-width: 520px;
}

.page-products .prod-overview__diagram-note {
  font-size: 0.875rem;
  color: var(--color-steel);
  text-align: center;
  max-width: 30em;
  margin: 1rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-compare {
  background: var(--color-navy);
  color: var(--color-white);
  padding-top: 4rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.page-products .prod-compare::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(90deg, rgba(212, 168, 67, 0.06) 0 25%, transparent 25% 75%, rgba(212, 168, 67, 0.06) 75% 100%);
  pointer-events: none;
}

.page-products .prod-compare__head {
  position: relative;
  z-index: 1;
  margin-bottom: 2rem;
}

.page-products .prod-compare__head .prod-section-tag {
  background: rgba(212, 168, 67, 0.16);
  color: var(--color-gold-light);
}

.page-products .prod-compare__head h2 {
  color: var(--color-white);
}

.page-products .prod-compare__note {
  color: rgba(246, 241, 235, 0.72);
}

.page-products .prod-compare__scroll {
  overflow-x: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-compare__table {
  width: 100%;
  min-width: 640px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-white);
  color: var(--color-ink);
  font-size: 0.875rem;
}

.page-products .prod-compare__table thead {
  position: sticky;
  top: var(--header-height);
  z-index: 5;
}

.page-products .prod-compare__table thead th {
  background: var(--color-navy);
  color: var(--color-white);
  text-align: left;
  font-family: var(--prod-font-display);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 1rem 1.25rem;
  border-bottom: 3px solid var(--color-gold);
}

.page-products .prod-compare__table th:first-child,
.page-products .prod-compare__table td:first-child {
  padding-left: 1.5rem;
}

.page-products .prod-compare__table th:last-child,
.page-products .prod-compare__table td:last-child {
  padding-right: 1.5rem;
}

.page-products .prod-compare__table tbody tr:nth-child(even) {
  background: rgba(212, 168, 67, 0.06);
}

.page-products .prod-compare__table tbody th {
  text-align: left;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-steel);
  background: var(--prod-tint);
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(11, 42, 70, 0.08);
}

.page-products .prod-compare__table tbody td {
  padding: 1rem 1.25rem;
  line-height: 1.6;
  border-bottom: 1px solid rgba(11, 42, 70, 0.08);
  transition: background 0.2s ease;
}

.page-products .prod-compare__table tbody tr:hover td {
  background: var(--color-gold-light);
  color: var(--color-navy);
}

.page-products .prod-badge {
  display: inline-block;
  font-family: var(--prod-font-display);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
}

.page-products .prod-badge--new {
  background: var(--color-orange);
  color: var(--color-white);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-products .prod-badge--legacy {
  background: rgba(74, 98, 116, 0.18);
  color: var(--color-navy);
  border: 1px solid rgba(74, 98, 116, 0.3);
}

.page-products .prod-compare__caption {
  position: relative;
  z-index: 1;
  font-size: 0.8125rem;
  color: rgba(246, 241, 235, 0.62);
  margin: 1rem 0 0;
}

.page-products .prod-pc-guide {
  padding-top: 4rem;
  padding-bottom: 4rem;
  background:
    linear-gradient(115deg, transparent 0 58%, rgba(11, 42, 70, 0.04) 58% 60%, transparent 60% 100%),
    var(--color-paper);
}

.page-products .prod-guide__head {
  margin-bottom: 2rem;
}

.page-products .prod-guide__head h2 {
  margin-bottom: 0.5rem;
}

.page-products .prod-guide__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-products .prod-guide__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: prod-steps;
}

.page-products .prod-guide__step {
  background: var(--color-white);
  border-left: 3px solid var(--color-orange);
  box-shadow: var(--shadow-sm);
  margin-bottom: 0.75rem;
  transition: box-shadow 0.2s ease;
}

.page-products .prod-guide__step:hover {
  box-shadow: var(--shadow-md);
}

.page-products .prod-guide__step details summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 0.9375rem;
  list-style: none;
  color: var(--color-navy);
}

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

.page-products .prod-guide__step .step-number {
  position: relative;
  z-index: 0;
  font-family: var(--prod-font-display);
  font-size: 1.25rem;
}

.page-products .prod-guide__detail {
  padding: 0 1.25rem 1.1rem 4rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-steel);
}

.page-products .prod-guide__detail p {
  margin: 0;
}

.page-products .prod-guide__media {
  margin: 0;
  min-width: 0;
}

.page-products .prod-guide__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.page-products .prod-archive {
  background: var(--prod-tint);
  padding-top: 4rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.page-products .prod-archive::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: calc(50% - 4rem);
  height: 100%;
  background: linear-gradient(225deg, rgba(212, 168, 67, 0.08), transparent 70%);
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .prod-archive__head {
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.page-products .prod-archive__head h2 {
  color: var(--color-navy);
}

.page-products .prod-archive__lead {
  max-width: 42em;
}

.page-products .prod-archive__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.page-products .prod-archive__media {
  margin: 0;
  min-width: 0;
}

.page-products .prod-archive__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  flex: 1;
}

.page-products .prod-archive__content {
  min-width: 0;
}

.page-products .prod-archive__methods {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-products .prod-archive__method {
  background: var(--color-white);
  border-left: 4px solid var(--color-gold);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}

.page-products .prod-archive__method:hover {
  transform: translateX(6px);
}

.page-products .prod-archive__method strong {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--prod-font-display);
  font-size: 1.0625rem;
  color: var(--color-navy);
  margin-bottom: 0.4rem;
}

.page-products .prod-archive__num {
  font-family: var(--prod-font-display);
  color: var(--color-gold);
  font-size: 1.25rem;
}

.page-products .prod-archive__method p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-steel);
  margin: 0;
  padding-left: 2.1rem;
}

.page-products .prod-dataflow {
  background: var(--color-navy);
  color: var(--color-white);
  padding-top: 4rem;
  padding-bottom: 4rem;
  overflow: hidden;
}

.page-products .prod-dataflow__inner {
  position: relative;
}

.page-products .prod-dataflow__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-products .prod-dataflow__head h2 {
  font-family: var(--prod-font-display);
  font-size: clamp(1.75rem, 3.2vw, 2.25rem);
  color: var(--color-white);
  margin: 0;
}

.page-products .prod-dataflow__head p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(246, 241, 235, 0.68);
  margin: 0;
  max-width: 30em;
}

.page-products .prod-dataflow__figure {
  margin: 0;
}

.page-products .prod-dataflow__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-products .prod-local {
  background: linear-gradient(120deg, var(--color-gold-light) 0 18%, var(--prod-tint) 18% 100%);
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.page-products .prod-local__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-products .prod-local__inner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.page-products .prod-local__note {
  font-size: 0.875rem;
  color: var(--color-navy);
  text-align: center;
  margin: 1rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(11, 42, 70, 0.18);
  width: 100%;
  letter-spacing: 0.04em;
}

@media (min-width: 768px) {
  .page-products .prod-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
    padding-top: 2.5rem;
    padding-bottom: 5.5rem;
  }

  .page-products .prod-hero__copy {
    flex: 1.1;
  }

  .page-products .prod-hero__visual {
    flex: 0.9;
    align-self: stretch;
    display: flex;
    align-items: center;
  }

  .page-products .prod-hero__facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-products .prod-overview__grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-products .prod-guide__layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-products .prod-guide__media {
    position: sticky;
    top: calc(var(--header-height) + 1rem);
  }

  .page-products .prod-archive__layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
  }

  .page-products .prod-archive__media {
    order: 1;
  }

  .page-products .prod-archive__content {
    order: 2;
  }
}

@media (min-width: 1080px) {
  .page-products .prod-compare__scroll {
    border-radius: var(--radius-lg);
  }

  .page-products .prod-compare__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
  }

  .page-products .prod-compare__nav a {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: rgba(246, 241, 235, 0.82);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.8125rem;
    transition: background 0.2s ease, color 0.2s ease;
  }

  .page-products .prod-compare__nav a:hover {
    background: rgba(255, 94, 43, 0.24);
    color: var(--color-white);
  }
}

@media (max-width: 767px) {
  .page-products .prod-hero__inner {
    padding-top: 1.5rem;
    padding-bottom: 3.5rem;
  }

  .page-products .prod-hero__visual {
    margin-top: 0.5rem;
  }

  .page-products .prod-hero__img {
    clip-path: polygon(2% 0, 100% 0, 96% 100%, 0 92%);
  }

  .page-products .prod-overview,
  .page-products .prod-pc-guide,
  .page-products .prod-archive {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .page-products .prod-compare {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }

  .page-products .prod-archive__method br {
    display: none;
  }

  .page-products .prod-guide__detail {
    padding-left: 3.25rem;
  }

  .page-products .prod-archive__content {
    margin-top: 0;
  }

  .page-products .prod-archive__layout {
    gap: 1.5rem;
  }

  .page-products .prod-dataflow {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}