:root {
  --bg: #f7f3ee;
  --surface: #fffdf9;
  --ink: #2f3440;
  --muted: #6a707d;
  --accent: #7eb8d6;
  --accent-deep: #28506a;
  --shadow: 0 18px 48px rgba(31, 41, 55, 0.12);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: radial-gradient(circle at top left, rgba(126, 184, 214, 0.25), transparent 28%), linear-gradient(180deg, #fbf7f1 0%, #f5f1eb 100%);
  color: var(--ink);
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.8;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    background-color 0.25s ease,
    color 0.25s ease;
}

a:hover {
  opacity: 0.92;
}

.sp-br {
  display: none;
}

main {
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 18px 20px;
  background: #fff;
  backdrop-filter: blur(14px);
}

.site-header__inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-header__brand img {
  width: 170px;
}

.site-header__cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-header__cta,
.button--primary {
  background: var(--accent-deep);
  color: #fff;
}

.button--secondary,
.button--ghost {
  background: transparent;
  color: var(--accent-deep);
  border-color: rgba(40, 80, 106, 0.24);
}

.kv {
  width: 100%;
  margin: 0 auto;
}

.kv__visual img {
  width: 100%;
}

.intro,
.products,
.highlight,
.cta {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head__sub,
.cta__sub,
.product__tag,
.highlight__grid span {
  display: inline-block;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
}

.section-head__sub,
.cta__sub {
  color: #353d6b;
}

.section-head h2,
.cta h2 {
  margin: 20px 0;
  font-family: "Cormorant Garamond", serif;
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: #353d6b;
}

.intro {
  padding: 50px 0;
}

.section-head {
  text-align: center;
}

.intro__grid,
.highlight__grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.intro-card,
.highlight__grid article,
.product,
.cta {
  background: rgba(255, 253, 249, 0.92);
  border: 1px solid rgba(47, 52, 64, 0.08);
  box-shadow: var(--shadow);
}

.intro-card {
  min-height: 100%;
  padding: 28px;
  border-radius: var(--radius-md);
}

.intro-card h3,
.highlight__grid h3,
.product__body h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  color: #353d6b;
}

.intro-card p,
.highlight__grid p,
.product__lead,
.product__points {
  margin-top: 12px;
  color: var(--muted);
}

.products {
  padding: 10px 0 72px;
}

.product {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 30px;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.product + .product,
.product-pair,
.product-pair + .product {
  margin-top: 28px;
}

.product--featured,
.product--reverse {
  align-items: center;
}

.product--reverse .product__gallery {
  order: 2;
}

.product--reverse .product__body {
  order: 1;
}

.product-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.product-pair .product {
  grid-template-columns: 1fr;
}

.product__gallery {
  display: grid;
  gap: 14px;
}

.product__gallery figure {
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.product__gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.product__gallery--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product__gallery--four {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product__gallery--stack {
  grid-template-columns: 1fr;
}

.product__gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.product__tag {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(126, 184, 214, 0.15);
  color: #353d6b;
}

.product__body h3 {
  margin-top: 16px;
}

.product__points {
  display: grid;
  gap: 10px;
}

.product__points li {
  position: relative;
  padding-left: 18px;
}

.product__points li::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.product .button {
  margin-top: 22px;
}

.highlight {
  padding: 10px 0 72px;
}

.highlight__grid article {
  padding: 28px;
  border-radius: var(--radius-md);
}

.highlight__grid span {
  color: rgba(40, 80, 106, 0.55);
}

.cta {
  margin-bottom: 72px;
  padding: 52px 28px;
  text-align: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(126, 184, 214, 0.16), rgba(215, 197, 175, 0.2)), rgba(255, 253, 249, 0.94);
}

.cta .button {
  margin-top: 26px;
}

.footer {
  padding: 28px 0 38px;
  text-align: center;
  color: #28506a;
}

@media (max-width: 1024px) {
  .product,
  .product-pair {
    grid-template-columns: 1fr;
  }

  .product--reverse .product__gallery,
  .product--reverse .product__body {
    order: initial;
  }

  .intro__grid,
  .highlight__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .sp-br {
    display: block;
  }
  .site-header {
    padding: 14px 16px;
  }

  .site-header__brand img {
    width: 132px;
  }

  .site-header__cta,
  .button {
    min-height: 46px;
    padding: 0 20px;
    font-size: 12px;
  }

  .kv {
    width: 100%;
  }

  .intro,
  .products,
  .highlight,
  .cta {
    width: calc(100% - 20px);
  }

  .product,
  .intro-card,
  .highlight__grid article,
  .cta {
    padding: 22px;
  }

  .product__gallery--three,
  .product__gallery--four,
  .product__gallery-grid {
    grid-template-columns: 1fr 1fr;
  }

  .product__gallery--three figure:first-child,
  .product__gallery--stack > figure:first-child {
    grid-column: 1 / -1;
  }

  .section-head h2,
  .cta h2 {
    font-size: 22px;
  }
}

.product__price {
  margin-top: 10px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  color: #353d6b;
}

@media (max-width: 767px) {
  .product__price {
    font-size: 21px;
  }
}

.product__gallery-placeholder {
  background: transparent;
  border-radius: var(--radius-sm);
}

.product__gallery-placeholder::before {
  content: "";
  display: block;
  width: 100%;
  padding-top: 100%;
}