:root {
  color-scheme: light;
  --ink: #173038;
  --muted: #5f7178;
  --paper: #fffefa;
  --wash: #eef8fb;
  --line: rgba(23, 48, 56, 0.14);
  --navy: #1269b3;
  --sea: #119f9b;
  --red: #df563e;
  --gold: #efaa31;
  --white: #ffffff;
  --shadow: 0 20px 55px rgba(16, 75, 106, 0.14);
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

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

a {
  color: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
  padding: 16px clamp(18px, 4vw, 56px);
  color: var(--white);
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(255, 253, 247, 0.95);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(22, 31, 32, 0.1);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-weight: 900;
}

.site-nav {
  display: flex;
  justify-content: flex-end;
  gap: clamp(16px, 3vw, 34px);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a,
.header-call,
.text-link {
  text-decoration: none;
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: currentColor;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.18s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-call {
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 800;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 88svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: #dff5ff;
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  filter: brightness(1.1) saturate(1.05);
  object-fit: cover;
  object-position: 52% 43%;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 34, 47, 0.22), rgba(8, 34, 47, 0.06) 44%, rgba(8, 34, 47, 0)),
    linear-gradient(0deg, rgba(7, 45, 69, 0.14), rgba(7, 45, 69, 0.01) 58%);
}

.hero-content {
  position: relative;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 140px 0 clamp(42px, 8vw, 86px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-size: clamp(3.2rem, 8.8vw, 7rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-shadow: 0 4px 28px rgba(5, 34, 50, 0.36);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4.3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(1.35rem, 2.2vw, 1.9rem);
  line-height: 1.2;
}

.lead {
  width: min(590px, 100%);
  margin-bottom: 30px;
  font-size: clamp(1.08rem, 2vw, 1.38rem);
  font-weight: 700;
  text-shadow: 0 3px 18px rgba(5, 34, 50, 0.42);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 22px;
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  background: var(--red);
  color: var(--white);
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.92);
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.hero-facts {
  display: grid;
  width: min(720px, 100%);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
}

.hero-facts div {
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.2);
}

dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

.hero-facts dt {
  color: var(--sea);
}

.hero-facts dd {
  color: var(--ink);
}

dd {
  margin: 0;
  font-weight: 800;
}

.notice-band {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: var(--navy);
  color: var(--white);
  text-align: center;
}

.notice-band p {
  display: grid;
  gap: 2px;
  margin: 0;
  font-weight: 700;
  line-height: 1.65;
}

.notice-band a {
  flex: 0 0 auto;
  color: #ffe3a3;
  font-weight: 900;
}

.section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(70px, 9vw, 118px) 0;
}

.section-heading {
  display: grid;
  max-width: 720px;
  gap: 4px;
  margin-bottom: 34px;
}

.section-heading p:not(.eyebrow),
.split-copy p,
.shop-info {
  color: var(--muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.product-card {
  min-height: 210px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--white);
  box-shadow: 0 14px 34px rgba(33, 122, 157, 0.08);
}

.product-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
  border-top: 1px solid var(--line);
}

.concept-panel {
  border-radius: 8px;
  padding: clamp(26px, 5vw, 46px);
  background: linear-gradient(135deg, var(--navy), #16a0bd);
  color: var(--white);
  box-shadow: var(--shadow);
}

.concept-panel p {
  margin-bottom: 12px;
  color: #ffe3a3;
  font-weight: 900;
}

.concept-panel a {
  display: block;
  margin-bottom: 14px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
}

.concept-panel span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}

.instagram {
  border-top: 1px solid var(--line);
}

.instagram-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.insta-post {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  box-shadow: 0 14px 34px rgba(22, 31, 32, 0.12);
  aspect-ratio: 1 / 1;
}

.insta-post img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}

.insta-post:hover img,
.insta-post:focus-visible img {
  transform: scale(1.04);
}

.insta-post span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  left: 12px;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(13, 22, 24, 0.72);
  font-size: 0.86rem;
  font-weight: 900;
  text-align: center;
}

.text-link {
  display: inline-flex;
  margin-top: 24px;
  color: var(--navy);
  font-weight: 900;
}

.access {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(24px, 5vw, 60px);
  border-top: 1px solid var(--line);
}

.shop-info {
  display: grid;
  gap: 18px;
  margin: 0;
}

.shop-info div {
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
}

.shop-info dt {
  margin-bottom: 3px;
}

.shop-info dd {
  color: var(--ink);
}

.map-wrap {
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--wash);
}

.map-wrap iframe {
  width: 100%;
  height: 100%;
  min-height: 420px;
  border: 0;
}

.site-footer {
  display: grid;
  gap: 4px;
  padding: 34px clamp(18px, 4vw, 56px);
  background: #0b4f82;
  color: rgba(255, 255, 255, 0.76);
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.site-footer strong,
.site-footer a {
  color: var(--white);
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto 1fr;
    gap: 12px;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav {
    position: absolute;
    top: 74px;
    right: 18px;
    left: 18px;
    display: none;
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

  .site-header.is-open .site-nav {
    display: grid;
  }

  .site-nav a {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after {
    display: none;
  }

  .header-call {
    justify-self: end;
    padding: 8px 12px;
    font-size: 0.88rem;
  }

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

  .split,
  .access {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 12px 14px;
  }

  .brand span:last-child {
    font-size: 0.96rem;
  }

  .header-call {
    display: none;
  }

  .hero {
    min-height: 86svh;
  }

  .hero-image {
    object-position: 58% 50%;
  }

  .hero-shade {
    background:
      linear-gradient(0deg, rgba(8, 38, 55, 0.26), rgba(8, 38, 55, 0.02) 68%),
      linear-gradient(90deg, rgba(8, 38, 55, 0.14), rgba(8, 38, 55, 0.01));
  }

  .hero-content {
    width: min(100% - 28px, 1120px);
    padding-bottom: 76px;
  }

  .eyebrow {
    margin-bottom: 8px;
    font-size: 0.72rem;
  }

  h2 {
    margin-bottom: 14px;
    font-size: clamp(2rem, 8vw, 2.8rem);
    line-height: 1.12;
  }

  h3 {
    margin-bottom: 10px;
    font-size: 1.55rem;
  }

  .lead {
    width: min(100%, 560px);
    margin-bottom: 24px;
    font-size: 1.08rem;
    line-height: 1.55;
  }

  .hero-actions,
  .notice-band {
    align-items: stretch;
    flex-direction: column;
  }

  .notice-band {
    gap: 12px;
    padding: 22px 22px 24px;
  }

  .notice-band p {
    line-height: 1.55;
  }

  .hero-facts,
  .product-grid,
  .instagram-grid {
    grid-template-columns: 1fr;
  }

  .hero-facts div {
    padding: 13px 14px;
  }

  .section {
    width: min(100% - 28px, 1120px);
    padding: 48px 0;
  }

  .section-heading {
    gap: 2px;
    margin-bottom: 28px;
  }

  .section-heading p:not(.eyebrow),
  .split-copy p {
    line-height: 1.85;
  }

  .product-card {
    min-height: auto;
    padding: 24px 26px 26px;
  }

  .product-card p {
    font-size: 1rem;
    line-height: 1.8;
  }

  .concept-panel {
    padding: 26px;
  }

  .concept-panel a {
    font-size: clamp(1.7rem, 8.8vw, 2.2rem);
    white-space: nowrap;
  }

  .instagram-grid {
    gap: 12px;
  }
}