:root {
  --ink: #173329;
  --muted: #61756d;
  --cream: #f5f1e8;
  --paper: #fffdf8;
  --green: #1f5a47;
  --green-deep: #123a2e;
  --lime: #cfe26a;
  --line: rgba(23, 51, 41, 0.16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", Arial, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  padding: 0 5vw;
  background: rgba(255, 253, 248, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.brand { display: inline-flex; align-items: center; gap: 13px; line-height: 1.2; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 15px;
  letter-spacing: .08em;
}
.brand b { display: block; font-family: Georgia, serif; font-size: 15px; letter-spacing: .13em; }
.brand small { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; letter-spacing: .08em; }
nav { display: flex; align-items: center; gap: 34px; font-size: 13px; font-weight: 600; }
nav a { transition: opacity .2s ease; }
nav a:hover { opacity: .6; }
.nav-contact { padding: 10px 18px; color: #fff; background: var(--green); border-radius: 999px; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  align-items: center;
  min-height: 720px;
  padding: 90px 8vw 100px;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 24%, rgba(207, 226, 106, .18), transparent 28%),
    linear-gradient(135deg, var(--paper), var(--cream));
}
.hero::before {
  content: "";
  position: absolute;
  inset: auto auto -210px -130px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(31, 90, 71, .13);
  border-radius: 50%;
}
.hero-copy { position: relative; z-index: 2; max-width: 740px; }
.eyebrow {
  margin: 0 0 20px;
  color: var(--green);
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .24em;
}
.hero h1 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", Georgia, serif;
  font-size: clamp(43px, 5vw, 76px);
  font-weight: 500;
  letter-spacing: -.03em;
  line-height: 1.36;
}
.hero h1 span { color: var(--green); }
.hero-lead { max-width: 620px; margin: 32px 0 0; color: #435b52; font-size: 17px; line-height: 2; }
.hero-lead strong { color: var(--ink); font-weight: 700; white-space: nowrap; }
.hero-actions { display: flex; align-items: center; gap: 25px; margin-top: 42px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 28px; font-size: 13px; font-weight: 700; }
.button.primary { color: #fff; background: var(--green); border-radius: 3px; box-shadow: 0 13px 30px rgba(31, 90, 71, .18); }
.button.text { min-height: auto; padding: 8px 0; border-bottom: 1px solid var(--ink); }
.hero-art { position: relative; display: grid; place-items: center; min-height: 480px; }
.hero-orbit { position: absolute; border: 1px solid rgba(31, 90, 71, .24); border-radius: 50%; }
.orbit-one { width: 430px; height: 430px; }
.orbit-two { width: 310px; height: 310px; border-color: rgba(31, 90, 71, .11); }
.hero-card {
  position: relative;
  z-index: 2;
  width: min(310px, 74%);
  padding: 42px 34px 38px;
  color: #fff;
  background: var(--green-deep);
  box-shadow: 32px 32px 0 rgba(207, 226, 106, .65);
}
.hero-card::after { content: ""; position: absolute; inset: 12px; border: 1px solid rgba(255,255,255,.14); pointer-events: none; }
.hero-card small { display: block; color: var(--lime); font-size: 10px; letter-spacing: .22em; }
.service-monogram {
  display: block;
  margin: 44px 0 33px;
  font-family: Georgia, serif;
  font-size: 90px;
  font-style: italic;
  line-height: .8;
}
.hero-card h2 { margin: 0; font-family: Georgia, serif; font-size: 31px; font-weight: 400; letter-spacing: .03em; }
.hero-card p { margin: 5px 0 0; color: rgba(255,255,255,.63); font-size: 11px; letter-spacing: .13em; }

.statement { padding: 84px 8vw; color: #fff; background: var(--green); text-align: center; }
.statement p { margin: 0 auto; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(20px, 2.2vw, 30px); line-height: 2.15; letter-spacing: .04em; }

.section { padding: 120px 8vw; }
.section-heading { display: grid; grid-template-columns: .6fr 1.1fr 1fr; align-items: end; gap: 35px; margin-bottom: 55px; }
.section-heading .eyebrow { margin: 0; }
.section-heading h2 { margin: 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(36px, 4vw, 56px); font-weight: 500; letter-spacing: .03em; }
.section-heading > p:last-child { margin: 0; color: var(--muted); font-size: 14px; }

.service-section { background: var(--paper); }
.service-panel { display: grid; grid-template-columns: 150px 1fr; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.service-number { padding: 45px 0; color: var(--green); font-family: Georgia, serif; font-size: 18px; }
.service-content { padding: 45px 0 55px; }
.service-label { margin: 0 0 6px; color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .18em; }
.service-content h3 { margin: 0 0 28px; font-family: Georgia, serif; font-size: clamp(42px, 5vw, 68px); font-weight: 400; line-height: 1.2; }
.service-description { max-width: 850px; margin: 0; color: #435b52; font-size: 16px; line-height: 2; }
.service-details { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 48px 0 0; border-top: 1px solid var(--line); }
.service-details div { padding: 27px 28px 0 0; }
.service-details div + div { padding-left: 28px; border-left: 1px solid var(--line); }
.service-details dt { color: var(--green); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.service-details dd { margin: 8px 0 0; font-size: 14px; }

.policy-section { color: #fff; background: var(--green-deep); }
.section-heading.light { grid-template-columns: .6fr 1.1fr 1fr; }
.section-heading.light .eyebrow { color: var(--lime); }
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.24); }
.policy-grid article { min-height: 250px; padding: 35px 36px 20px 0; }
.policy-grid article + article { padding-left: 36px; border-left: 1px solid rgba(255,255,255,.16); }
.policy-grid span { color: var(--lime); font-family: Georgia, serif; font-size: 14px; }
.policy-grid h3 { margin: 38px 0 15px; font-family: "Yu Mincho", serif; font-size: 23px; font-weight: 500; }
.policy-grid p { margin: 0; color: rgba(255,255,255,.7); font-size: 14px; }

.company-section { background: var(--cream); }
.company-section .section-heading { grid-template-columns: .6fr 1.1fr 1fr; }
.company-card { margin-left: calc(60% / 3 + 35px); background: var(--paper); border: 1px solid var(--line); }
.company-card dl { margin: 0; padding: 15px 45px; }
.company-card dl > div { display: grid; grid-template-columns: 150px 1fr; gap: 25px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.company-card dl > div:last-child { border-bottom: 0; }
.company-card dt { color: var(--muted); font-size: 12px; font-weight: 700; }
.company-card dd { margin: 0; font-size: 14px; }

.contact-section { display: grid; grid-template-columns: .82fr 1.18fr; gap: 90px; padding: 110px 8vw; color: #fff; background: var(--green); }
.contact-section h2 { margin: 0 0 24px; font-family: "Yu Mincho", serif; font-size: clamp(36px, 4vw, 56px); font-weight: 500; }
.contact-section .eyebrow { color: var(--lime); }
.contact-section > div > p:last-child { color: rgba(255,255,255,.72); font-size: 14px; }
.contact-links { border-top: 1px solid rgba(255,255,255,.34); }
.contact-links a { position: relative; display: grid; grid-template-columns: 120px 1fr 30px; align-items: center; min-height: 96px; border-bottom: 1px solid rgba(255,255,255,.34); }
.contact-links small { color: var(--lime); font-size: 9px; letter-spacing: .18em; }
.contact-links strong { font-family: Arial, sans-serif; font-size: clamp(16px, 2vw, 24px); font-weight: 400; letter-spacing: .02em; }
.contact-links span { font-size: 22px; }

.privacy-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; padding: 90px 8vw; background: var(--paper); }
.section-heading.compact { display: block; margin: 0; }
.section-heading.compact h2 { font-size: 28px; }
.privacy-copy { color: var(--muted); font-size: 13px; }
.privacy-copy p { margin: 0 0 17px; }

footer { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 35px; padding: 55px 5vw 35px; color: #fff; background: #0c251d; }
.footer-brand .brand-mark { border-color: rgba(255,255,255,.6); }
.footer-brand small { color: rgba(255,255,255,.54); }
.footer-links { display: flex; gap: 25px; font-size: 11px; }
footer > p { grid-column: 1 / -1; margin: 35px 0 0; padding-top: 22px; color: rgba(255,255,255,.43); border-top: 1px solid rgba(255,255,255,.12); font-size: 10px; letter-spacing: .08em; }

@media (max-width: 900px) {
  .site-header { min-height: 72px; }
  nav a:not(.nav-contact) { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; }
  .hero-art { min-height: 450px; margin-top: 35px; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; }
  .section-heading > p:last-child { margin-top: 12px; }
  .service-panel { grid-template-columns: 70px 1fr; }
  .service-details { grid-template-columns: 1fr; }
  .service-details div, .service-details div + div { padding: 20px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .policy-grid { grid-template-columns: 1fr; }
  .policy-grid article { min-height: auto; padding: 30px 0; }
  .policy-grid article + article { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.16); }
  .policy-grid h3 { margin-top: 20px; }
  .company-card { margin-left: 0; }
  .contact-section, .privacy-section { grid-template-columns: 1fr; gap: 45px; }
}

@media (max-width: 560px) {
  .site-header { padding: 0 20px; }
  .brand b { font-size: 13px; }
  .brand small { display: none; }
  .nav-contact { padding: 9px 13px; }
  .hero { min-height: auto; padding: 62px 24px 80px; }
  .hero h1 { font-size: 39px; }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-art { min-height: 370px; }
  .orbit-one { width: 330px; height: 330px; }
  .orbit-two { width: 240px; height: 240px; }
  .hero-card { width: 235px; box-shadow: 20px 20px 0 rgba(207,226,106,.65); }
  .statement, .section, .contact-section, .privacy-section { padding-left: 24px; padding-right: 24px; }
  .section { padding-top: 85px; padding-bottom: 85px; }
  .service-panel { grid-template-columns: 1fr; }
  .service-number { padding-bottom: 0; }
  .company-card dl { padding: 8px 20px; }
  .company-card dl > div { grid-template-columns: 1fr; gap: 5px; }
  .contact-links a { grid-template-columns: 1fr 24px; padding: 18px 0; }
  .contact-links small { grid-column: 1 / -1; }
  .contact-links strong { font-size: 18px; }
  footer { grid-template-columns: 1fr; padding: 45px 24px 30px; }
  footer > p { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }