.product-detail-page {
  display: grid;
  gap: clamp(30px, 4vw, 54px);
}

.product-detail-hero {
  align-items: center;
  background:
    linear-gradient(132deg, rgba(4, 45, 88, .98), rgba(12, 84, 160, .95) 65%, rgba(54, 126, 190, .92)),
    repeating-linear-gradient(115deg, transparent 0 46px, rgba(255, 255, 255, .08) 46px 47px);
  border-radius: calc(var(--brand-radius-card) * 2);
  box-shadow: 0 18px 44px color-mix(in srgb, var(--brand-color-primary) 22%, transparent);
  color: #fff;
  display: grid;
  gap: clamp(22px, 4vw, 42px);
  grid-template-columns: auto minmax(0, 1fr);
  overflow: hidden;
  padding: clamp(26px, 4vw, 44px);
  position: relative;
}

.product-detail-hero::after {
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 50%;
  content: "";
  height: 270px;
  position: absolute;
  right: -90px;
  top: -155px;
  width: 270px;
}

.product-detail-hero-icon {
  position: relative;
  z-index: 1;
}

.product-detail-hero .product-card-icon {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .3);
  box-shadow: inset 0 -10px 0 rgba(255, 255, 255, .08);
  color: #fff;
  height: clamp(72px, 9vw, 96px);
  width: clamp(72px, 9vw, 96px);
}

.product-detail-hero .product-card-icon::after { background: #fff; }

.product-detail-hero .product-card-icon svg {
  height: 48%;
  width: 48%;
}

.product-detail-hero-copy {
  max-width: 880px;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.product-detail-hero h1 {
  color: inherit;
  font-size: clamp(2rem, 4vw, 3.35rem);
  letter-spacing: -.035em;
  line-height: 1;
  margin: 0;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.product-detail-hero-copy p {
  color: rgba(255, 255, 255, .88);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.58;
  margin: 16px 0 0;
  max-width: 72ch;
}

.product-detail-status {
  border: 1px solid rgba(255, 255, 255, .62);
  border-radius: var(--brand-radius-control);
  display: inline-block;
  font-size: .84rem;
  font-weight: 700;
  margin-top: 18px;
  padding: 6px 10px;
}

.product-detail-layout {
  align-items: start;
  display: grid;
  gap: clamp(28px, 5vw, 72px);
  grid-template-columns: minmax(0, 1fr) minmax(230px, 300px);
}

.product-detail-main,
.product-detail-content { min-width: 0; }

.product-detail-key-points {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  margin-bottom: 28px;
}

.product-detail-key-point {
  background: color-mix(in srgb, var(--brand-color-surface) 74%, var(--brand-color-primary-soft));
  border-left: 3px solid var(--brand-color-primary);
  color: var(--brand-color-ink);
  font-weight: 650;
  line-height: 1.45;
  padding: 14px 16px;
}

.product-detail-key-point a {
  color: var(--brand-color-primary);
  text-decoration: none;
}

.product-detail-content > h2,
.product-detail-content > h3 {
  color: var(--brand-color-ink);
  line-height: 1.18;
  text-wrap: balance;
}

.product-detail-content > h2 {
  border-top: 1px solid var(--brand-color-border);
  font-size: clamp(1.55rem, 2.3vw, 2rem);
  margin: 0 0 20px;
  padding-top: 30px;
}

.product-detail-content > h2:first-child {
  border-top: 0;
  padding-top: 0;
}

.product-detail-content > p,
.product-detail-content > ul,
.product-detail-content > ol {
  color: var(--brand-color-text-muted);
  font-size: 1.04rem;
  line-height: 1.72;
  max-width: 78ch;
}

.product-detail-content > p { text-align: justify; }

.product-detail-content .product-accordion {
  background: var(--brand-color-surface);
  border: 1px solid color-mix(in srgb, var(--brand-color-primary) 17%, var(--brand-color-border));
  border-left: 4px solid var(--brand-color-primary);
  border-radius: calc(var(--brand-radius-card) * 1.35);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--brand-color-primary) 6%, transparent);
  margin: 0 0 14px;
  overflow: hidden;
}

.product-detail-content .product-accordion > summary {
  align-items: center;
  background: color-mix(in srgb, var(--brand-color-surface) 86%, var(--brand-color-primary-soft));
  color: var(--brand-color-ink);
  display: flex;
  font-size: clamp(1.05rem, 1.5vw, 1.18rem);
  font-weight: 750;
  justify-content: space-between;
  line-height: 1.35;
  min-height: 68px;
  padding: 17px 22px;
}

.product-detail-content .product-accordion > summary::after {
  align-items: center;
  background: var(--brand-color-surface);
  border: 1px solid var(--brand-color-primary-mid);
  border-radius: 50%;
  color: var(--brand-color-primary);
  display: flex;
  flex: 0 0 auto;
  height: 30px;
  justify-content: center;
  margin-left: 18px;
  width: 30px;
}

.product-detail-content .product-accordion[open] > summary {
  background: var(--brand-color-primary);
  color: #fff;
}

.product-detail-content .product-accordion[open] > summary::after {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .55);
  color: #fff;
}

.product-detail-content .product-accordion-content {
  color: var(--brand-color-text-muted);
  line-height: 1.7;
  padding: 22px 24px 26px;
}

.product-detail-content .product-accordion-content p {
  max-width: 78ch;
  text-align: justify;
}

.product-detail-content .product-accordion-content a {
  color: var(--brand-color-primary);
  font-weight: 650;
  overflow-wrap: anywhere;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.product-detail-content .product-accordion-content li + li { margin-top: 9px; }

.product-detail-aside {
  display: grid;
  gap: 16px;
  position: sticky;
  top: 24px;
}

.product-detail-nav {
  background: color-mix(in srgb, var(--brand-color-surface) 76%, var(--brand-color-primary-soft));
  border: 1px solid color-mix(in srgb, var(--brand-color-primary) 18%, var(--brand-color-border));
  border-top: 4px solid var(--brand-color-primary);
  border-radius: calc(var(--brand-radius-card) * 1.5);
  display: grid;
  gap: 8px;
  padding: 24px;
}

.product-detail-nav h2 {
  color: var(--brand-color-ink);
  font-size: 1.16rem;
  line-height: 1.25;
  margin: 0 0 9px;
  overflow-wrap: anywhere;
}

.product-detail-nav a {
  background: var(--brand-color-surface);
  border-left: 3px solid var(--brand-color-primary-accent);
  border-radius: 0 var(--brand-radius-control) var(--brand-radius-control) 0;
  color: var(--brand-color-primary);
  font-weight: 650;
  line-height: 1.4;
  padding: 11px 12px;
  text-decoration: none;
}

.product-detail-nav a:hover { color: var(--brand-color-primary-hover); }

.product-detail-nav a:focus-visible {
  outline: 3px solid var(--brand-color-primary);
  outline-offset: 2px;
}

.product-detail-cta {
  box-sizing: border-box;
  margin: 0;
  text-align: center;
  width: 100%;
}

@media (max-width: 760px) {
  .product-detail-layout { grid-template-columns: minmax(0, 1fr); }

  .product-detail-aside {
    grid-row: 1;
    position: static;
  }

  .product-detail-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-detail-nav h2 { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .product-detail-hero {
    align-items: start;
    gap: 18px;
    grid-template-columns: minmax(0, 1fr);
    padding: 26px 22px;
  }

  .product-detail-hero .product-card-icon {
    height: 62px;
    width: 62px;
  }

  .product-detail-nav { grid-template-columns: minmax(0, 1fr); }

  .product-detail-content > p,
  .product-detail-content .product-accordion-content p { text-align: left; }

  .product-detail-content .product-accordion > summary { padding: 15px 16px; }
  .product-detail-content .product-accordion-content { padding: 18px 18px 22px; }
}