.page-products {
  position: relative;
  padding-bottom: 5rem;
  overflow-x: hidden;
  --cover-line: rgba(199, 154, 74, 0.28);
  --cover-soft: rgba(233, 220, 200, 0.45);
}

.page-products .breadcrumb {
  max-width: var(--content-w);
  margin: 1.25rem auto 0;
  padding: 0 1.25rem;
}

.page-products .solutions-cover {
  position: relative;
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 2.75rem 1.25rem 2rem;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 84% 14%, rgba(255, 255, 255, 0.7), transparent 44%),
    linear-gradient(145deg, var(--cover-soft), transparent 72%),
    var(--clr-bg);
}

.page-products .solutions-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--cover-line);
  border-radius: var(--radius);
  pointer-events: none;
}

.page-products .solutions-cover > * {
  position: relative;
  z-index: 1;
}

.page-products .cover-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.page-products .cover-meta .section-label {
  margin: 0;
}

.page-products .cover-info {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--clr-ink-secondary);
  border: 1px solid rgba(199, 154, 74, 0.4);
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
}

.page-products h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.55rem, 5vw, 2.3rem);
  line-height: 1.35;
  margin: 0 0 1rem;
  max-width: 21em;
  color: var(--clr-ink);
}

.page-products .cover-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--clr-ink-secondary);
  max-width: 44em;
  margin: 0 0 1.75rem;
}

.page-products .cover-figure {
  margin: 0 0 1.5rem;
}

.page-products .cover-figure img {
  width: 100%;
  max-width: 720px;
  height: auto;
  display: block;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-products .cover-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-products .chapter-directory {
  max-width: var(--content-w);
  margin: 2rem auto;
  padding: 0.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-products .dir-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 0.9rem;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--cover-line);
  border-radius: 10px;
  color: var(--clr-ink);
  font-size: 0.94rem;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-products .dir-item:hover,
.page-products .dir-item:focus-visible {
  border-color: var(--clr-gold);
  background: rgba(255, 255, 255, 0.86);
  transform: translateX(2px);
}

.page-products .dir-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--clr-gold);
  min-width: 2em;
}

.page-products .dir-label {
  font-weight: 600;
  flex: 1;
}

.page-products .dir-tip {
  font-size: 0.78rem;
  color: var(--clr-ink-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 12em;
}

.page-products .section-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.page-products .section-index {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--clr-gold);
  border: 1px solid rgba(199, 154, 74, 0.4);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
  line-height: 1;
  letter-spacing: 0.03em;
}

.page-products .section-tag {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--clr-ink-secondary);
  border: 1px solid rgba(76, 66, 53, 0.3);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
}

.page-products .section-head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.38rem;
  line-height: 1.4;
  margin: 0;
  color: var(--clr-ink);
}

.page-products .solutions-overview {
  max-width: var(--content-w);
  margin: 0 auto 3rem;
  padding: 2rem 1.25rem 1rem;
}

.page-products .overview-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-products .overview-intro p {
  margin: 0 0 0.75rem;
  color: var(--clr-ink-secondary);
  line-height: 1.8;
  font-size: 0.97rem;
}

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

.page-products .overview-card {
  position: relative;
  padding: 1.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.68);
  border-radius: var(--radius);
  border: 1px solid rgba(199, 154, 74, 0.3);
  box-shadow: var(--shadow);
}

.page-products .overview-card .card-index {
  position: absolute;
  top: 1rem;
  right: 1.15rem;
  font-size: 2rem;
  opacity: 0.16;
  font-weight: 600;
}

.page-products .overview-card h3 {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  margin: 0 0 0.4rem;
  color: var(--clr-ink);
}

.page-products .overview-card .card-role {
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--clr-ink-secondary);
  margin: 0 0 0.75rem;
}

.page-products .overview-card .card-note {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--clr-ink);
  margin: 0 0 1rem;
}

.page-products .activity-card {
  border-color: rgba(158, 58, 45, 0.35);
  background: linear-gradient(160deg, rgba(158, 58, 45, 0.06), rgba(255, 255, 255, 0.72));
}

.page-products .record-card {
  border-color: rgba(21, 37, 54, 0.3);
  background: linear-gradient(160deg, rgba(21, 37, 54, 0.06), rgba(255, 255, 255, 0.72));
}

.page-products .solutions-chapter {
  position: relative;
  max-width: var(--content-w);
  margin: 0 auto 3rem;
  padding: 2rem 1.25rem;
  border-radius: var(--radius);
}

.page-products .chapter-rail {
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  right: 0.35rem;
  width: 4px;
  border-radius: 4px;
  background: var(--clr-gold);
}

.page-products .chapter-game .chapter-rail {
  background: var(--clr-gold);
}

.page-products .chapter-activity .chapter-rail {
  background: var(--clr-red);
}

.page-products .chapter-record .chapter-rail {
  background: var(--clr-gold);
}

.page-products .chapter-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-products .chapter-copy {
  min-width: 0;
}

.page-products .chapter-lead {
  font-size: 1.04rem;
  line-height: 1.85;
  color: var(--clr-ink);
  margin: 0 0 1rem;
}

.page-products .chapter-copy h3 {
  font-family: var(--font-serif);
  font-size: 1.08rem;
  margin: 1.5rem 0 0.65rem;
  color: var(--clr-ink);
}

.page-products .chapter-copy p {
  line-height: 1.8;
  color: var(--clr-ink-secondary);
  font-size: 0.95rem;
}

.page-products .chapter-figure {
  margin: 0;
  align-self: center;
}

.page-products .chapter-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.page-products .chapter-figure figcaption,
.page-products .combo-figure figcaption {
  font-size: 0.82rem;
  color: var(--clr-ink-secondary);
  margin-top: 0.5rem;
  text-align: left;
}

.page-products .chapter-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed rgba(76, 66, 53, 0.25);
}

.page-products .foot-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--clr-ink-secondary);
}

.page-products .tag-badge-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
  gap: 0.5rem;
}

.page-products .tag-badge-grid li {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.3rem;
  border-radius: 999px;
  background: rgba(199, 154, 74, 0.1);
  border: 1px solid rgba(199, 154, 74, 0.32);
  font-size: 0.84rem;
  color: var(--clr-ink);
  text-align: center;
  transition: background 0.18s ease, transform 0.18s ease;
}

.page-products .tag-badge-grid li:hover {
  background: rgba(199, 154, 74, 0.2);
  transform: translateY(-2px);
}

.page-products .accordion {
  margin: 1rem 0;
  border: 1px solid rgba(199, 154, 74, 0.3);
  border-radius: 10px;
  overflow: hidden;
}

.page-products .accordion-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0.8rem 1rem;
  border: 0;
  background: rgba(199, 154, 74, 0.08);
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--clr-ink);
  cursor: pointer;
  text-align: left;
}

.page-products .accordion-icon {
  position: relative;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

.page-products .accordion-icon::before,
.page-products .accordion-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 2px;
  background: var(--clr-gold);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.2s ease;
}

.page-products .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-products .accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-products .accordion-trigger[aria-expanded="false"] .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-products .accordion-panel {
  padding: 0.5rem 1rem 1rem;
  background: rgba(255, 255, 255, 0.6);
}

.page-products .code-breakdown {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-products .code-breakdown li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(76, 66, 53, 0.12);
  font-size: 0.92rem;
  color: var(--clr-ink);
}

.page-products .code-breakdown li:last-child {
  border-bottom: 0;
}

.page-products .code-chip {
  display: inline-block;
  background: var(--clr-night);
  color: #fff;
  font-size: 0.82rem;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  letter-spacing: 0.04em;
}

.page-products .chapter-record {
  background: var(--clr-night);
  color: #F5EFE4;
}

.page-products .chapter-record .section-head h2 {
  color: #F5EFE4;
}

.page-products .chapter-record .section-tag {
  border-color: rgba(245, 239, 228, 0.3);
  color: #D6CBB8;
}

.page-products .chapter-record .section-index {
  border-color: rgba(199, 154, 74, 0.6);
  color: var(--clr-gold);
}

.page-products .chapter-record .chapter-lead {
  color: #F5EFE4;
}

.page-products .chapter-record .chapter-copy h3 {
  color: #EDE3D2;
}

.page-products .chapter-record .chapter-copy p {
  color: rgba(245, 239, 228, 0.82);
}

.page-products .chapter-record .feature-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.6rem;
}

.page-products .chapter-record .feature-list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 0.94rem;
  line-height: 1.65;
  color: rgba(245, 239, 228, 0.88);
}

.page-products .chapter-record .feature-icon {
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--clr-gold);
  box-shadow: 0 0 0 3px rgba(199, 154, 74, 0.2);
}

.page-products .record-visual {
  margin: 0;
  align-self: center;
}

.page-products .record-visual img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.page-products .visual-caption {
  color: rgba(245, 239, 228, 0.68);
  font-size: 0.8rem;
  margin-top: 0.5rem;
  text-align: center;
}

.page-products .chapter-record .chapter-foot {
  border-top-color: rgba(245, 239, 228, 0.18);
}

.page-products .chapter-record .foot-note {
  color: rgba(245, 239, 228, 0.68);
}

.page-products .chapter-record .btn-primary {
  background: var(--clr-gold);
  color: var(--clr-ink);
  border-color: var(--clr-gold);
}

.page-products .combo-section {
  max-width: var(--content-w);
  margin: 0 auto 3rem;
  padding: 2rem 1.25rem;
  background: linear-gradient(180deg, rgba(233, 220, 200, 0.5), rgba(245, 239, 228, 0));
  border-radius: var(--radius);
}

.page-products .combo-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-products .combo-figure {
  margin: 0;
  align-self: center;
}

.page-products .combo-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.page-products .combo-list {
  display: grid;
  gap: 0.75rem;
}

.page-products .combo-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1rem;
  background: var(--clr-glass);
  border-radius: 12px;
  border: 1px solid rgba(199, 154, 74, 0.2);
  box-shadow: 0 2px 12px rgba(36, 30, 24, 0.04);
}

.page-products .combo-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--clr-gold);
  border: 1px solid rgba(199, 154, 74, 0.45);
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.page-products .combo-content h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  margin: 0 0 0.4rem;
  color: var(--clr-ink);
}

.page-products .combo-content p {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--clr-ink-secondary);
  margin: 0;
}

.page-products .combo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

@media (min-width: 768px) {
  .page-products .breadcrumb {
    padding: 0 2.5rem;
  }

  .page-products .solutions-cover {
    padding: 4rem 2.5rem 2.5rem;
  }

  .page-products .chapter-directory {
    flex-direction: row;
    padding: 1.5rem 2.5rem;
  }

  .page-products .dir-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    padding: 0.9rem 1rem;
  }

  .page-products .dir-tip {
    max-width: 0;
    opacity: 0;
    transition: opacity 0.2s ease, max-width 0.2s ease, margin-left 0.2s ease;
  }

  .page-products .dir-item:hover .dir-tip,
  .page-products .dir-item:focus-visible .dir-tip {
    opacity: 1;
    max-width: 18em;
    margin-left: 0.75rem;
  }

  .page-products .solutions-overview,
  .page-products .solutions-chapter,
  .page-products .combo-section {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }

  .page-products .overview-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-products .overview-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }

  .page-products .overview-card:nth-child(2) {
    transform: translateY(1rem);
  }

  .page-products .overview-card:nth-child(3) {
    transform: translateY(0.35rem);
  }

  .page-products .chapter-layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
    align-items: center;
  }

  .page-products .chapter-activity .chapter-layout {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .page-products .chapter-record .chapter-layout {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-products .combo-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 2.5rem;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-products {
    padding-bottom: 6rem;
  }

  .page-products .solutions-cover {
    padding-top: 5rem;
  }

  .page-products .solutions-cover h1 {
    font-size: 2.3rem;
  }

  .page-products .chapter-game {
    transform: translateX(-0.75rem);
  }

  .page-products .chapter-activity {
    transform: translateX(0.75rem);
  }

  .page-products .chapter-record {
    transform: translateX(0.25rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition: none !important;
    animation: none !important;
  }
}