:root {
  --ink: #111915;
  --ink-soft: #1a241f;
  --paper: #f2efe6;
  --paper-soft: #e1ddd1;
  --muted: #9da69e;
  --line: rgba(242, 239, 230, 0.18);
  --red: #d64b3d;
  --gold: #cbb57c;
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  font-feature-settings: "palt";
  line-height: 1.9;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 1rem;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 30;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  padding: 0 4vw;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, height 0.3s ease;
}

.site-header.is-scrolled {
  height: 68px;
  background: rgba(17, 25, 21, 0.9);
  border-color: var(--line);
  backdrop-filter: blur(16px);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.brand-mark {
  display: inline-block;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--red);
}

.nav {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.8rem);
}

.nav a {
  color: var(--paper-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--red);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  align-items: center;
  min-height: 100svh;
  padding: 120px max(5vw, calc((100vw - var(--max)) / 2)) 70px;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(17, 25, 21, 0.98) 0%, rgba(17, 25, 21, 0.88) 52%, rgba(17, 25, 21, 0.6) 100%),
    radial-gradient(circle at 85% 34%, rgba(214, 75, 61, 0.2), transparent 29%),
    radial-gradient(circle at 72% 74%, rgba(203, 181, 124, 0.08), transparent 24%);
}

.hero-grain {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.23;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  pointer-events: none;
}

.eyebrow,
.section-kicker {
  margin: 0 0 1.8rem;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
}

.hero h1 {
  max-width: 860px;
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.8rem, 6.7vw, 6.9rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.17;
}

.hero h1 em {
  color: var(--red);
  font-style: normal;
}

.hero-lead {
  margin: 2.1rem 0 2.4rem;
  color: var(--paper-soft);
  font-size: clamp(0.92rem, 1.15vw, 1.08rem);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--red);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.text-link span {
  color: var(--red);
  font-size: 1.1rem;
}

.hero-symbol {
  position: relative;
  justify-self: center;
  width: min(34vw, 470px);
  aspect-ratio: 1;
}

.sun {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 31%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--red);
  transform: translate(-50%, -50%);
}

.orbit {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(242, 239, 230, 0.18);
  border-radius: 50%;
  animation: rotate 28s linear infinite;
}

.orbit-b {
  inset: 2%;
  border-style: dashed;
  animation-duration: 43s;
  animation-direction: reverse;
}

.orbit i {
  position: absolute;
  top: 48%;
  left: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.orbit-b i {
  top: 10%;
  right: 12%;
  left: auto;
  background: var(--paper);
}

.symbol-label {
  position: absolute;
  color: rgba(242, 239, 230, 0.58);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
}

.label-air { top: 3%; left: 29%; }
.label-forest { top: 30%; right: -7%; }
.label-island { right: 12%; bottom: 8%; }
.label-nature { bottom: 13%; left: -5%; }

.scroll-note {
  position: absolute;
  right: 4vw;
  bottom: 3rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.58rem;
  letter-spacing: 0.26em;
  writing-mode: vertical-rl;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(6rem, 11vw, 10rem) 5vw;
}

.vision {
  position: relative;
}

.vision-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(3rem, 8vw, 8rem);
  align-items: end;
}

.display-title {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.6rem, 5.8vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.25;
}

.display-title span {
  color: var(--red);
}

.vision-copy {
  max-width: 440px;
  padding-bottom: 0.8rem;
  color: var(--paper-soft);
  font-size: 1rem;
}

.vision-copy p {
  margin: 0 0 1.2rem;
}

.vision-line {
  width: 100%;
  height: 1px;
  margin-top: clamp(4rem, 8vw, 7rem);
  background: linear-gradient(90deg, var(--red) 0 11%, var(--line) 11% 100%);
}

.projects {
  max-width: none;
  padding-right: max(5vw, calc((100vw - var(--max)) / 2));
  padding-left: max(5vw, calc((100vw - var(--max)) / 2));
  background: var(--paper);
  color: var(--ink);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto 3rem;
}

.section-head .section-kicker {
  color: #8b704c;
}

.section-head h2 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  font-weight: 400;
}

.section-head > p {
  margin: 0 0 0.7rem;
  color: #5f675f;
  font-size: 0.88rem;
}

.project-list {
  max-width: var(--max);
  margin: 0 auto;
  border-top: 1px solid rgba(17, 25, 21, 0.2);
}

.project {
  position: relative;
  display: grid;
  grid-template-columns: 70px minmax(130px, 0.72fr) minmax(300px, 1.35fr) 110px;
  gap: 2rem;
  align-items: center;
  min-height: 250px;
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(17, 25, 21, 0.2);
  overflow: hidden;
}

.project-number {
  align-self: start;
  color: #7b837d;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.76rem;
}

.project-word {
  color: rgba(17, 25, 21, 0.12);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.5rem, 5.2vw, 5rem);
  line-height: 1;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.project-main {
  max-width: 650px;
}

.project-jp {
  margin: 0 0 0.35rem;
  color: #8b704c;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}

.project h3 {
  margin: 0 0 1rem;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.55rem, 2.4vw, 2.4rem);
  font-weight: 400;
  line-height: 1.4;
}

.project-main > p:last-child {
  margin: 0;
  color: #515a54;
  font-size: 0.9rem;
  line-height: 1.95;
}

.project-mark {
  position: relative;
  justify-self: end;
  width: 88px;
  height: 88px;
  border: 1px solid rgba(17, 25, 21, 0.25);
  border-radius: 50%;
}

.project-mark::before,
.project-mark::after,
.project-mark span {
  content: "";
  position: absolute;
  background: var(--red);
}

.project-mark::before {
  top: 50%;
  left: 18%;
  width: 64%;
  height: 1px;
}

.project-mark::after {
  top: 18%;
  left: 50%;
  width: 1px;
  height: 64%;
}

.project-mark span {
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.project-forest .project-mark span { border-radius: 2px; transform: translate(-50%, -50%) rotate(45deg); }
.project-island .project-mark::after { transform: rotate(45deg); transform-origin: center; }
.project-nature .project-mark { border-style: dashed; }

.approach {
  padding-bottom: clamp(7rem, 13vw, 12rem);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: clamp(4rem, 8vw, 7rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.steps li {
  min-height: 300px;
  padding: 2.2rem clamp(1.3rem, 3vw, 2.5rem);
  border-right: 1px solid var(--line);
}

.steps li:first-child {
  padding-left: 0;
}

.steps li:last-child {
  border-right: 0;
}

.step-num {
  display: block;
  margin-bottom: 4rem;
  color: var(--red);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
}

.steps h3 {
  margin: 0 0 1rem;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.65rem;
  font-weight: 400;
}

.steps p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.closing {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 84svh;
  padding: 6rem 5vw;
  background: #e7e1d5;
  color: var(--ink);
  text-align: center;
  overflow: hidden;
}

.closing-sun {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(42vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--red);
  opacity: 0.92;
  transform: translate(-50%, -50%);
}

.closing-en {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--paper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.5rem, 7vw, 7.6rem);
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.closing-jp {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 3.6rem;
  left: 0;
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(0.86rem, 1.5vw, 1.1rem);
  letter-spacing: 0.12em;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem 4vw;
  background: #0b100d;
  color: var(--paper-soft);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.site-footer p {
  margin: 0;
}

.copyright {
  justify-self: end;
  color: var(--muted);
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes rotate {
  to { transform: rotate(360deg); }
}

@media (max-width: 860px) {
  .site-header {
    height: 68px;
    padding: 0 1.25rem;
  }

  .brand { font-size: 0.68rem; }
  .nav { gap: 1rem; }
  .nav a { font-size: 0.66rem; }

  .hero {
    grid-template-columns: 1fr;
    align-content: center;
    min-height: 100svh;
    padding: 100px 1.4rem 70px;
  }

  .hero-copy { position: relative; z-index: 2; }

  .hero h1 {
    font-size: clamp(2.3rem, 10.3vw, 4.8rem);
    line-height: 1.23;
  }

  .hero-lead {
    max-width: 34ch;
    font-size: 0.86rem;
    overflow-wrap: anywhere;
  }

  .hero-symbol {
    position: absolute;
    z-index: 0;
    top: 14%;
    right: -38%;
    width: 78vw;
    opacity: 0.35;
  }

  .hero-symbol .symbol-label { display: none; }

  .scroll-note { display: none; }

  .section { padding-right: 1.4rem; padding-left: 1.4rem; }

  .vision-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section-head {
    display: block;
  }

  .section-head > p {
    margin-top: 0.8rem;
  }

  .project {
    grid-template-columns: 46px 1fr 64px;
    gap: 1rem;
    min-height: 0;
    padding: 2.5rem 0;
  }

  .project-word { display: none; }
  .project-mark { width: 58px; height: 58px; }

  .steps {
    grid-template-columns: 1fr;
  }

  .steps li,
  .steps li:first-child {
    min-height: 0;
    padding: 2rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .step-num { margin-bottom: 1.5rem; }

  .closing-sun { width: 72vw; }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 1.1rem;
    text-align: center;
  }

  .footer-brand,
  .copyright {
    justify-self: center;
  }
}

@media (max-width: 540px) {
  .nav { display: none; }

  .project {
    grid-template-columns: 34px 1fr;
  }

  .project-mark { display: none; }

  .closing-jp {
    right: 1rem;
    left: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}
/* 1104 multi-page extension, retaining the original JAPAN PROJECT design. */
.official-logo{width:46px;height:46px;object-fit:contain;display:block}.site-header{background:rgba(17,25,21,.94);border-bottom:1px solid var(--line)}.menu-toggle{display:none}img{max-width:100%;display:block}.wrap{width:min(90%,1100px);margin:auto}.page-intro{padding:150px 0 80px;border-bottom:1px solid var(--line)}.page-intro h1{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(2.6rem,5.6vw,5.6rem);font-weight:400;line-height:1.35;margin:0 0 30px;letter-spacing:-.035em}.lead{font-size:1.05rem;color:var(--paper-soft);max-width:800px}.cover{height:400px;margin-top:82px;overflow:hidden}.cover img{width:100%;height:100%;object-fit:cover}.cover+.page-intro{padding-top:60px}.detail-section{padding-top:65px;padding-bottom:75px}.prose{max-width:870px}.prose h2{font-family:"Yu Mincho",serif;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:400;margin:30px 0 22px}.prose p{margin-bottom:28px;color:var(--paper-soft)}.arrow{display:inline-flex;gap:20px;text-decoration:none;border-bottom:1px solid var(--red);padding-bottom:5px;margin:20px 0}.arrow span{color:var(--red)}.soft{background:var(--ink-soft)}.soft h2,.detail-section>h2{font-family:"Yu Mincho",serif;font-size:2.6rem;font-weight:400}.steps article{padding:28px 0;border-top:1px solid var(--line)}.steps article>span{color:var(--gold)}.steps article h3{font-weight:500;font-size:1.5rem}.steps article p{color:var(--muted)}.timeline article{display:grid;grid-template-columns:150px 1fr;gap:40px;border-top:1px solid var(--line);padding:30px 0}.timeline article>span{font:1.6rem Georgia,serif;color:var(--gold)}.timeline h3{font-family:"Yu Mincho",serif;font-size:1.6rem;font-weight:400;margin:0 0 14px}.timeline p{color:var(--paper-soft);margin:0}.company>div{display:grid;grid-template-columns:180px 1fr;gap:25px;border-top:1px solid var(--line);padding:21px 0}.company dt{color:var(--muted)}.company dd{margin:0}.csr-item{display:grid;grid-template-columns:32% 1fr;gap:7%;padding:45px 0;border-top:1px solid var(--line)}.csr-banner{display:flex;align-items:center;justify-content:center;min-height:230px;padding:30px;border:1px solid var(--line);color:var(--gold);font:1.7rem/1.3 Georgia,serif;text-align:center;letter-spacing:.05em;background:#1a241f}.csr-item h2{font-family:"Yu Mincho",serif;font-size:2rem;font-weight:400;margin:0 0 24px}.csr-item p{color:var(--paper-soft)}.csr-home{background:#1a241f}.about-home{border-top:1px solid var(--line)}.project-main .text-link{margin-top:20px}.site-footer a{font-size:.8rem;text-decoration:none}.site-footer .official-logo{width:38px;height:38px}a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:6px}
@media(max-width:860px){.page-intro{padding-top:120px;padding-bottom:48px}.page-intro h1{font-size:clamp(2rem,7vw,3rem)}.cover{height:250px;margin-top:68px}.cover+.page-intro{padding-top:40px}.detail-section{padding:40px 0}.official-logo{width:34px;height:34px}.company>div{grid-template-columns:1fr;gap:6px}.company dt{font-size:.8rem}.timeline article{grid-template-columns:1fr;gap:12px}.csr-item{grid-template-columns:1fr;gap:25px;padding:32px 0}.csr-banner{min-height:150px}.csr-item h2{font-size:1.6rem}.nav{gap:1.2rem}.menu-toggle{display:block;border:1px solid var(--line);background:none;color:var(--paper);font-size:.65rem;padding:8px 10px}.site-header .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:22px;flex-wrap:wrap;border-bottom:1px solid var(--line)}.site-header .nav.is-open{display:flex}.nav a{font-size:.85rem}.brand{gap:.6rem}.site-footer .footer-brand{font-size:.65rem}.hero-symbol{right:-30%;opacity:.3}}
.official-logo{position:relative;display:block;flex:none;width:46px;height:40px;overflow:hidden}.official-logo img{position:absolute;max-width:none;width:148.809524%;height:auto;left:-31.964286%;top:-4.272915%}.site-footer .official-logo{width:38px;height:33px}@media(max-width:860px){.official-logo{width:34px;height:29.36px}}
.hero{overflow:hidden}
@media(max-width:860px){.prose h2,.detail-section>h2,.soft h2{font-size:1.65rem;line-height:1.6}.prose h2{margin-top:18px}.prose p{font-size:.94rem}}

/* Exact original-pixel mark crop; no text in asset. */
.official-logo img{position:static;display:block;max-width:100%;width:100%;height:100%;object-fit:contain;left:auto;top:auto}