:root {
  --ink: #071a3b;
  --text: #1c3150;
  --muted: #60718a;
  --blue: #0873dc;
  --blue-deep: #0356be;
  --cyan: #31c5ef;
  --pale: #f3f9ff;
  --line: #dbe8f3;
  --white: #fff;
  --shadow: 0 22px 55px rgba(14, 70, 124, .12);
  --container: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 82px; }
body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: var(--container); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 9999; padding: 10px 14px; border-radius: 8px; background: var(--ink); color: #fff; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.mobile-only { display: none; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: 82px;
  border-bottom: 1px solid rgba(15, 81, 145, .07);
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px);
  transition: box-shadow .25s ease, background .25s ease;
}
.site-header.scrolled { background: rgba(255, 255, 255, .97); box-shadow: 0 8px 28px rgba(11, 62, 112, .09); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 32px; }
.header-logo { display: flex; align-items: center; width: 152px; height: 62px; }
.header-logo img { width: 100%; height: 100%; object-fit: contain; }
.global-nav { display: flex; align-items: center; gap: clamp(26px, 3.5vw, 52px); color: #1d2c45; font-size: 14px; font-weight: 700; letter-spacing: .05em; }
.global-nav a { position: relative; padding: 27px 0 23px; }
.global-nav a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 16px; height: 2px; background: var(--blue); transition: left .22s ease, right .22s ease; }
.global-nav a:hover, .global-nav a.active { color: var(--blue); }
.global-nav a:hover::after, .global-nav a.active::after { left: 0; right: 0; }
.menu-button { display: none; }

.hero {
  position: relative;
  min-height: 760px;
  padding-top: 82px;
  overflow: hidden;
  background: linear-gradient(112deg, #fff 0%, #fff 45%, #eef8ff 100%);
}
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 1px; background: linear-gradient(90deg, transparent, #dbeaf6 15%, #dbeaf6 85%, transparent); }
.hero-bg { position: absolute; inset: 82px 0 0; pointer-events: none; background:
  linear-gradient(125deg, transparent 0 58%, rgba(61, 169, 235, .08) 58.1% 58.25%, transparent 58.4%),
  linear-gradient(125deg, transparent 0 68%, rgba(61, 169, 235, .07) 68.1% 68.2%, transparent 68.3%);
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, .92fr) minmax(440px, 1.08fr); align-items: center; min-height: 678px; gap: 24px; }
.hero-copy { padding: 78px 0 68px; }
.hero-kicker { margin: 0 0 22px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .24em; }
.hero h1 { margin: 0; color: var(--ink); font-size: clamp(44px, 4.7vw, 64px); line-height: 1.34; letter-spacing: -.055em; font-weight: 800; }
.hero-title-line { display: block; width: max-content; max-width: 100%; white-space: nowrap; }
.hero-lead { max-width: 610px; margin: 24px 0 24px; color: #415570; font-size: 16px; line-height: 2; font-weight: 500; }
.hero-brand { display: block; width: 330px; max-width: 66%; margin: 18px 0 22px; }
.hero-brand img { width: 100%; height: auto; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-width: 166px; min-height: 50px; padding: 12px 22px; border-radius: 9px; font-size: 13px; font-weight: 700; letter-spacing: .03em; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: linear-gradient(135deg, #0b86ea, #075bc9); box-shadow: 0 14px 28px rgba(5, 105, 211, .22); }
.button-outline { border: 1px solid #bbd6eb; color: #135fae; background: rgba(255,255,255,.72); }
.button-outline:hover { background: #fff; box-shadow: 0 10px 24px rgba(14, 76, 132, .09); }
.hero-visual { position: relative; align-self: stretch; display: flex; align-items: center; justify-content: center; min-width: 0; }
.hero-visual::before { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(85, 188, 245, .16), rgba(85,188,245,0) 70%); filter: blur(10px); }
.hero-visual img { position: relative; z-index: 1; width: min(760px, 112%); max-width: none; transform: translateX(3%); }
.scroll-cue { position: absolute; z-index: 4; left: 50%; bottom: 17px; display: flex; align-items: center; gap: 10px; color: #6c91af; font-size: 9px; font-weight: 800; letter-spacing: .2em; transform: translateX(-50%); }
.scroll-cue span { width: 34px; height: 1px; background: #78a4c4; }

.section { padding: 108px 0; }
.section-heading { text-align: center; margin-bottom: 52px; }
.section-heading > p { margin: 0 0 6px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.section-heading h2 { margin: 0; color: var(--ink); font-size: clamp(34px, 4vw, 46px); line-height: 1.35; letter-spacing: -.04em; }
.section-heading > span { display: block; width: 56px; height: 2px; margin: 14px auto 0; background: linear-gradient(90deg, var(--cyan), var(--blue)); }

.business { background: #fff; }
.business-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.business-card { position: relative; display: grid; grid-template-columns: 112px 1fr; gap: 28px; min-height: 320px; padding: 42px 40px; border: 1px solid #e3edf5; border-radius: 18px; background: #fff; box-shadow: 0 20px 48px rgba(30, 82, 130, .09); overflow: hidden; }
.business-card::after { content: ""; position: absolute; right: -76px; bottom: -84px; width: 190px; height: 190px; border-radius: 50%; background: radial-gradient(circle, rgba(34, 155, 235, .11), transparent 69%); }
.business-icon { display: grid; place-items: center; width: 94px; height: 94px; border-radius: 50%; color: #fff; background: linear-gradient(145deg, #1e8cf0, #66b7ff); box-shadow: 0 14px 28px rgba(27, 132, 226, .25); }
.business-icon svg { width: 54px; height: 54px; }
.card-index { margin: 0 0 10px; color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.business-card h3 { margin: 0 0 20px; color: var(--ink); font-size: 23px; line-height: 1.55; letter-spacing: -.025em; }
.business-card p:last-child { margin: 0; color: #52637b; font-size: 14px; line-height: 2; }

.company { position: relative; min-height: 660px; overflow: hidden; background: linear-gradient(110deg, #f8fcff 0%, #eff8ff 54%, #dff1fd 100%); }
.company::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 1px 1px, rgba(26, 134, 205, .12) 1px, transparent 1.5px); background-size: 19px 19px; mask-image: linear-gradient(90deg, transparent 0 54%, #000 80%, transparent 100%); }
.company-art { position: absolute; z-index: 0; right: -35px; bottom: -5px; width: min(55vw, 790px); opacity: .88; }
.company-inner { position: relative; z-index: 2; }
.company .section-heading { margin-bottom: 28px; }
.company-table { width: min(710px, 68%); margin: 0; border-top: 1px solid #caddeb; background: rgba(255,255,255,.26); backdrop-filter: blur(2px); }
.company-table > div { display: grid; grid-template-columns: 170px 1fr; gap: 24px; align-items: start; padding: 16px 4px; border-bottom: 1px solid #caddeb; }
.company-table dt { color: #086dce; font-size: 14px; font-weight: 800; letter-spacing: .03em; }
.company-table dd { margin: 0; color: #223754; font-size: 14px; font-weight: 600; line-height: 1.85; }
.company-table a { color: #075fc2; }
.company-table a:hover { text-decoration: underline; }

.contact { position: relative; overflow: hidden; padding: 86px 0 82px; color: #fff; background: linear-gradient(125deg, #0878df 0%, #0758c9 52%, #034cb5 100%); }
.contact::before { content: ""; position: absolute; left: -10%; right: -10%; bottom: -130px; height: 300px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; transform: rotate(-4deg); }
.contact::after { content: ""; position: absolute; left: -12%; right: -12%; bottom: -180px; height: 350px; border: 1px solid rgba(80,221,255,.24); border-radius: 50%; transform: rotate(4deg); }
.contact-lines { position: absolute; inset: 0; opacity: .24; background-image: radial-gradient(circle at 1px 1px, #8be7ff 1px, transparent 1.3px); background-size: 15px 15px; mask-image: linear-gradient(90deg, transparent, #000 65%, #000); }
.contact-inner { position: relative; z-index: 2; text-align: center; }
.contact-icon { display: grid; place-items: center; width: 58px; height: 58px; margin: 0 auto 12px; border-radius: 50%; color: var(--blue); background: #fff; box-shadow: 0 12px 30px rgba(1, 43, 105, .2); }
.contact-icon svg { width: 30px; }
.contact-label { margin: 0; color: #9de9ff; font-size: 10px; font-weight: 800; letter-spacing: .2em; }
.contact h2 { margin: 2px 0 8px; font-size: clamp(32px, 4vw, 44px); letter-spacing: -.04em; }
.contact-inner > p:not(.contact-label) { margin: 0 0 22px; color: rgba(255,255,255,.86); font-size: 14px; }
.contact-mail { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-width: min(100%, 410px); padding: 15px 26px; border-radius: 10px; color: #075dc7; background: #fff; box-shadow: 0 16px 38px rgba(0, 45, 112, .24); font-size: 18px; font-weight: 800; letter-spacing: .01em; transition: transform .2s ease, box-shadow .2s ease; }
.contact-mail:hover { transform: translateY(-3px); box-shadow: 0 20px 44px rgba(0, 45, 112, .3); }
.contact-mail svg { width: 25px; flex: 0 0 auto; }

.site-footer { padding: 34px 0 24px; color: rgba(255,255,255,.68); background: #062359; }
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 24px; margin: 0 0 10px; font-size: 12px; }
.footer-links a:hover { color: #fff; }
.site-footer p { margin: 4px 0 0; font-size: 10px; letter-spacing: .04em; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .72s ease, transform .72s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  :root { --container: min(900px, calc(100% - 40px)); }
  .hero-inner { grid-template-columns: 1fr 1fr; }
  .hero-visual img { width: 125%; }
  .business-card { grid-template-columns: 90px 1fr; padding: 36px 30px; gap: 20px; }
  .business-icon { width: 80px; height: 80px; }
  .business-icon svg { width: 46px; }
  .company-table { width: 72%; }
}

@media (max-width: 820px) {
  html { scroll-padding-top: 72px; }
  .site-header { height: 72px; }
  .header-logo { width: 134px; height: 54px; }
  .menu-button { display: grid; place-content: center; gap: 5px; width: 44px; height: 44px; border: 0; border-radius: 10px; color: var(--ink); background: #eef7ff; cursor: pointer; }
  .menu-button span:not(.sr-only) { width: 21px; height: 2px; border-radius: 3px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .global-nav { position: fixed; top: 72px; left: 16px; right: 16px; display: grid; gap: 0; padding: 10px 16px; border: 1px solid #dbe9f5; border-radius: 14px; background: rgba(255,255,255,.98); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .2s ease, transform .2s ease, visibility .2s ease; }
  .global-nav.open { opacity: 1; visibility: visible; transform: none; }
  .global-nav a { padding: 13px 4px; border-bottom: 1px solid #edf3f8; }
  .global-nav a:last-child { border-bottom: 0; }
  .global-nav a::after { display: none; }
  .hero { padding-top: 72px; min-height: 0; }
  .hero-bg { inset: 72px 0 0; }
  .hero-inner { grid-template-columns: 1fr; min-height: 0; padding-top: 54px; padding-bottom: 54px; }
  .hero-copy { padding: 20px 0 0; }
  .hero h1 { font-size: clamp(40px, 8.2vw, 62px); }
  .hero-lead { max-width: 680px; }
  .hero-brand { width: 290px; }
  .hero-visual { min-height: 390px; margin-top: -20px; }
  .hero-visual img { width: min(760px, 104%); transform: none; }
  .scroll-cue { display: none; }
  .section { padding: 86px 0; }
  .business-grid { grid-template-columns: 1fr; }
  .business-card { min-height: 0; }
  .company { padding-bottom: 430px; }
  .company-table { width: 100%; }
  .company-art { width: 760px; max-width: 110%; right: -80px; bottom: 0; }
}

@media (max-width: 560px) {
  :root { --container: calc(100% - 28px); }
  body { font-size: 15px; }
  .mobile-only { display: initial; }
  .desktop-only { display: none; }
  .hero-inner { padding-top: 38px; padding-bottom: 38px; }
  .hero-kicker { margin-bottom: 13px; font-size: 10px; }
  .hero h1 { font-size: clamp(31px, 9.2vw, 46px); line-height: 1.34; }
  .hero-lead { margin: 18px 0; font-size: 14px; line-height: 1.9; }
  .hero-brand { width: 235px; max-width: 72%; margin: 12px 0 18px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .button { min-width: 0; min-height: 48px; padding: 10px 12px; font-size: 12px; }
  .hero-visual { min-height: 290px; margin-top: -25px; }
  .hero-visual img { width: 116%; }
  .section { padding: 72px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2 { font-size: 34px; }
  .business-card { grid-template-columns: 1fr; gap: 20px; padding: 28px 24px; border-radius: 15px; }
  .business-icon { width: 76px; height: 76px; }
  .business-card h3 { font-size: 21px; }
  .business-card p:last-child { font-size: 13px; line-height: 1.9; }
  .company { padding-bottom: 330px; }
  .company-table > div { grid-template-columns: 112px 1fr; gap: 13px; padding: 14px 2px; }
  .company-table dt, .company-table dd { font-size: 12px; }
  .company-art { width: 620px; max-width: 145%; right: -160px; }
  .contact { padding: 72px 0 68px; }
  .contact-inner > p:not(.contact-label) { font-size: 13px; }
  .contact-mail { min-width: 0; width: 100%; padding: 14px 15px; font-size: 16px; }
  .footer-links { gap: 8px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}