:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: #d2d2d7;
  --gray: #f5f5f7;
  --link: #203e60;
  --font: "Jost", "Zen Kaku Gothic New", -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 56px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  line-height: 1.7;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p, dl, dd { margin: 0; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 22px; }
.wrap--narrow { max-width: 692px; }
.sp { display: none; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, .06);
}
.nav__inner {
  max-width: 980px; height: 56px; margin: 0 auto; padding: 0 22px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo { display: flex; align-items: center; }
.nav__logo img { display: block; height: 36px; width: auto; margin-left: -6px; }
.nav__links { display: flex; gap: 28px; }
.nav__links a { font-size: 12px; color: var(--muted); transition: color .2s; }
.nav__links a:hover { color: var(--ink); }
.nav__toggle { display: none; }

/* Hero */
.hero {
  min-height: calc(100svh - 56px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 96px 22px;
  text-align: center;
}
.hero__mark { width: 72px; height: 72px; margin-bottom: 28px; }
.eyebrow { font-size: 13px; font-weight: 400; color: var(--muted); letter-spacing: .28em; text-transform: uppercase; }
.hero__title {
  margin-top: 12px;
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 500; line-height: 1.2; letter-spacing: -.01em;
}
.hero__lead { margin-top: 24px; font-size: clamp(17px, 2.2vw, 21px); color: var(--muted); }

/* Section */
.section { padding: 120px 0; }
.section--gray { background: var(--gray); }
.headline {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 500; line-height: 1.25; letter-spacing: -.005em;
  text-align: center;
}
.sub { margin-top: 16px; text-align: center; color: var(--muted); font-size: 17px; }

/* Tiles */
.tiles { display: flex; gap: 20px; margin-top: 64px; }
.tile {
  flex: 1 1 0;
  display: flex; flex-direction: column;
  background: #fff;
  border-radius: 22px;
  overflow: hidden;
}
.tile__photo { display: block; aspect-ratio: 4 / 3; overflow: hidden; }
.tile__photo img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2, .7, .2, 1); }
.tile:hover .tile__photo img { transform: scale(1.03); }
.tile__body { flex-grow: 1; display: flex; flex-direction: column; padding: 40px 40px 40px; }
.tile__label { font-size: 14px; font-weight: 500; color: var(--muted); }
.tile__name { margin-top: 8px; font-size: 32px; font-weight: 500; line-height: 1.3; }
.tile__kana { font-size: 15px; font-weight: 400; color: var(--muted); letter-spacing: .1em; }
.tile__text { margin-top: 20px; font-size: 17px; color: var(--ink); flex-grow: 1; }

.spec { margin-top: 32px; font-size: 14px; }
.spec div { display: flex; gap: 16px; padding: 12px 0; border-top: 1px solid var(--line); }
.spec dt { flex: 0 0 64px; color: var(--muted); }
.spec a { color: var(--link); }

.more { margin-top: 28px; align-self: flex-start; font-size: 17px; color: var(--link); }
.more::after { content: " ›"; }
.more:hover { text-decoration: underline; }

/* Company */
.list { margin-top: 56px; }
.list div { display: flex; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
.list div:first-child { border-top: 1px solid var(--line); }
.list dt { flex: 0 0 140px; color: var(--muted); }

/* Contact */
.contact { display: flex; margin-top: 56px; text-align: center; }
.contact--company { margin-bottom: -24px; }
.contact--company + .contact { padding-top: 32px; border-top: 1px solid var(--line); }
.contact > div { flex: 1 1 0; padding: 8px 16px; }
.contact > div + div { border-left: 1px solid var(--line); }
.contact__name { font-size: 14px; color: var(--muted); }
.contact__value { display: inline-block; margin-top: 8px; font-size: 28px; font-weight: 500; color: var(--link); }

/* Footer */
.footer { padding: 24px 0; background: var(--gray); border-top: 1px solid var(--line); }
.footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.footer__logo { display: block; height: 24px; width: auto; opacity: .85; }
.footer p { font-size: 12px; color: var(--muted); }

/* Motion */
.fade { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1); }
.fade.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .fade { opacity: 1; transform: none; transition: none; }
}

/* Mobile */
@media (max-width: 734px) {
  body { font-size: 16px; }
  .wrap, .nav__inner { padding: 0 max(20px, env(safe-area-inset-left)); }
  .sp { display: inline; }

  /* Nav：2本線 → 全画面メニュー */
  .nav__inner { height: 56px; }
  .nav__toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 7px;
    width: 44px; height: 44px; margin-right: -12px; padding: 0 12px;
    background: none; border: 0; cursor: pointer;
  }
  .nav__toggle span { display: block; height: 1.5px; background: var(--ink); border-radius: 1px; transition: transform .35s cubic-bezier(.2, .7, .2, 1); }
  .menu-open .nav__toggle span:first-child { transform: translateY(4.25px) rotate(45deg); }
  .menu-open .nav__toggle span:last-child { transform: translateY(-4.25px) rotate(-45deg); }
  .nav__links {
    position: fixed; inset: 56px 0 0 0;
    flex-direction: column; gap: 0;
    padding: 24px 32px;
    background: #fff;
    opacity: 0; visibility: hidden;
    transition: opacity .3s ease, visibility .3s;
  }
  .nav__links a {
    font-size: 28px; font-weight: 500; color: var(--ink); letter-spacing: .02em;
    padding: 14px 0;
    transform: translateY(-8px);
    transition: transform .45s cubic-bezier(.2, .7, .2, 1);
  }
  .menu-open { overflow: hidden; }
  .menu-open .nav { background: #fff; backdrop-filter: none; -webkit-backdrop-filter: none; border-bottom-color: transparent; }
  .menu-open .nav__links { opacity: 1; visibility: visible; }
  .menu-open .nav__links a { transform: none; }

  /* Hero */
  .hero { min-height: calc(100svh - 56px); padding: 72px 24px 96px; }
  .eyebrow { font-size: 11px; letter-spacing: .26em; }
  .hero__title { margin-top: 16px; font-size: 32px; line-height: 1.35; }
  .hero__lead { margin-top: 20px; font-size: 15px; line-height: 1.9; max-width: 18em; }

  /* Section */
  .section { padding: 80px 0; }
  .headline { font-size: 28px; line-height: 1.4; }
  .sub { font-size: 15px; }

  /* Tiles：写真を大きく、角丸は控えめに */
  .tiles { flex-direction: column; gap: 16px; margin: 40px -8px 0; }
  .tile { flex: none; border-radius: 20px; }
  .tile__photo { aspect-ratio: 5 / 4; }
  .tile:hover .tile__photo img { transform: none; }
  .tile__body { padding: 28px 24px 30px; }
  .tile__label { font-size: 12px; }
  .tile__name { font-size: 26px; }
  .tile__text { margin-top: 14px; font-size: 15px; line-height: 1.85; }
  .spec { margin-top: 24px; font-size: 13px; }
  .spec div { padding: 11px 0; }
  .spec dt { flex-basis: 60px; }
  .more { margin-top: 22px; font-size: 16px; }

  /* Company */
  .list { margin-top: 40px; }
  .list div { flex-direction: column; gap: 2px; padding: 18px 0; font-size: 15px; }
  .list dt { flex: none; font-size: 12px; }

  /* Contact */
  .contact { flex-direction: column; gap: 12px; margin-top: 36px; }
  .contact > div { padding: 24px 16px; background: #fff; border-radius: 18px; }
  .contact > div + div { border: 0; }
  .contact--company { margin-bottom: 0; }
  .contact--company + .contact { margin-top: 12px; padding-top: 0; border-top: 0; }
  .contact__name { font-size: 13px; }
  .contact__value { font-size: 24px; }

  .footer { padding: 28px 0 calc(28px + env(safe-area-inset-bottom)); }
  .footer .wrap { flex-direction: column; gap: 10px; }
  .hero__mark { width: 60px; height: 60px; margin-bottom: 24px; }
  .nav__logo img { height: 32px; margin-left: -5px; }
}