/* ===== リセット・ベース ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* ライトモノトーン（淡いグレー・濃いチャコール） */
  --paper: #f3f3f1;
  --paper-2: #e7e7e4;
  --paper-3: #ffffff;
  --ink: #222220;
  --black: #111110;
  --soft: #555550;
  --gray: #85847d;
  --line: #bdbbb4;
  --line-soft: #d8d7d1;
  --placeholder: #dcdbd6;
  --placeholder-dark: #c9c8c2;
  --accent: #3b3b38;
  --accent-soft: rgba(59, 59, 56, 0.14);
  --panel: #ededeb;
  --panel-2: #ffffff;

  --font-serif: 'Cormorant Garamond', serif;
  --font-grotesk: 'Jost', sans-serif;
  --font-jp: 'Noto Serif JP', serif;

  --pad-x: clamp(1.5rem, 6vw, 9rem);
  --maxw: 1480px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 300;
  line-height: 1.95;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  text-underline-offset: 0.24em;
}

a:focus-visible {
  outline: 1px solid var(--black);
  outline-offset: 0.45rem;
}

.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;
}

::selection {
  background: var(--black);
  color: var(--paper);
}

/* 共通：細ラベル（Jost・ワイドトラッキング） */
.label {
  font-family: var(--font-grotesk);
  font-weight: 400;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

/* 共通：矢印リンク */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-grotesk);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  transition: gap 0.18s ease-out, color 0.18s ease-out;
}
.link-arrow:hover { gap: 1.45rem; color: var(--black); }
.link-arrow svg { width: 40px; height: 12px; }

/* ===== ナビゲーション ===== */
.nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(1.05rem + env(safe-area-inset-top)) var(--pad-x) 1.05rem;
  background-color: rgba(243, 243, 241, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.nav__logo { display: inline-flex; align-items: center; text-decoration: none; }
.nav__logo img {
  height: 46px;
  width: auto;
  display: block;
  filter: grayscale(1) contrast(1.08);
}

.nav__menu { display: flex; gap: clamp(1.5rem, 3vw, 3.4rem); }

.nav__menu a {
  font-family: var(--font-grotesk);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.18s ease-out;
}
.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width 0.18s ease-out;
}
.nav__menu a:hover::after { width: 100%; }
.nav__menu a:hover { color: var(--black); }

/* ===== HERO（抽象的な黒のファーストビュー）===== */
.hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  min-height: 86dvh;
  display: flex;
  flex-direction: column;
  padding: 6.4rem var(--pad-x) clamp(2rem, 4vh, 3rem);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 7.8rem;
  right: var(--pad-x);
  width: clamp(12rem, 28vw, 31rem);
  height: clamp(12rem, 28vw, 31rem);
  border: 1px solid var(--line-soft);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  left: var(--pad-x);
  bottom: clamp(4rem, 9vh, 6rem);
  width: clamp(8rem, 18vw, 18rem);
  height: 1px;
  background: var(--accent);
  opacity: 0.76;
  pointer-events: none;
}
.hero__abstract {
  position: absolute;
  right: clamp(1rem, 5vw, 5rem);
  top: clamp(5.8rem, 12vh, 8rem);
  z-index: 0;
  font-family: var(--font-serif);
  font-size: clamp(9rem, 21vw, 22rem);
  font-weight: 300;
  line-height: 0.75;
  color: rgba(17, 17, 16, 0.045);
  pointer-events: none;
}

/* 見出し＋画像帯を下寄り中央に・上端を揃える */
.hero__main {
  position: relative;
  z-index: 1;
  margin-top: clamp(4.8rem, 13vh, 8.5rem);
  display: grid;
  grid-template-columns: minmax(17rem, 0.64fr) minmax(26rem, 1.36fr);
  align-items: center;
  gap: clamp(2.4rem, 6vw, 6rem);
}

.hero__head {
  position: relative;
  flex-shrink: 0;
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
}
.hero__mark {
  display: block;
  width: 13px;
  height: 13px;
  background: var(--accent);
  margin-bottom: 1.5rem;
}
.hero__kicker {
  display: block;
  margin-bottom: 1.1rem;
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--accent);
}
.hero__title {
  font-family: var(--font-serif);
  font-variant: small-caps;
  font-size: clamp(2rem, 4.1vw, 4.25rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0.03em;
  color: var(--black);
}
.hero__lead {
  max-width: 22rem;
  margin-top: clamp(1.2rem, 3vw, 2rem);
  font-size: 0.8rem;
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--soft);
}

/* 画像帯：全部同じ高さ、幅だけ違う */
.hero__strip {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: 0.85fr 1fr 1.55fr 1.05fr;
  align-items: flex-start;
  height: clamp(210px, 34vh, 360px);
  padding: clamp(1rem, 2vw, 1.4rem);
  background: var(--panel);
  border: 1px solid var(--line-soft);
}
.hero__strip::after {
  content: '';
  position: absolute;
  left: clamp(1rem, 2vw, 1.4rem);
  bottom: clamp(1rem, 2vw, 1.4rem);
  width: clamp(4rem, 12vw, 9rem);
  height: 1px;
  background: var(--accent);
  z-index: 2;
}
/* 左：3枚を密着 */
.hero__cluster {
  display: contents;
}
/* .frame の width:100% を打ち消し、高さ×aspect-ratio で幅を決める */
.hero__strip .hf {
  width: 100%;
  height: 100%;
  min-width: 0;
  flex-shrink: 0;
}
.hf .frame__ph { font-size: 0.5rem; }
.hf--a { aspect-ratio: 3 / 4; }
.hf--b {
  aspect-ratio: 1 / 1;
  transform: translateY(clamp(0.8rem, 2vw, 1.6rem));
}
.hf--c { aspect-ratio: 16 / 10; }
/* 間を空けて右に大きめの1点 */
.hf--d {
  aspect-ratio: 4 / 3;
  margin-left: 0;
  transform: translateY(clamp(-0.8rem, -1.4vw, -0.4rem));
}

/* 右下の小ラベル＋細罫線 */
.hero__foot {
  position: relative;
  z-index: 1;
  margin-top: clamp(1.6rem, 4vh, 3.2rem);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.2rem;
}
.hero__foot-label,
.hero__foot-place {
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--soft);
}
.hero__rule {
  width: clamp(2rem, 6vw, 5rem);
  height: 1px;
  background: var(--line);
}

/* ===== 画像フレーム（プレースホルダー）===== */
.frame {
  position: relative;
  width: 100%;
  background: var(--placeholder);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--gray);
}
.frame::before {
  content: '';
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  width: 2.4rem;
  height: 1px;
  background: rgba(17, 17, 16, 0.22);
}
.frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--line);
  pointer-events: none;
}
.frame__ph {
  position: absolute;
  right: 1rem;
  bottom: 0.72rem;
  font-family: var(--font-grotesk);
  font-size: 0.5rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(34, 34, 32, 0.62);
}

.visual {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(1.02);
}
.visual--crop-1 { object-position: 5% 50%; }
.visual--crop-2 { object-position: 34% 50%; }
.visual--crop-3 { object-position: 63% 50%; }
.visual--crop-4 { object-position: 92% 50%; }
.visual + .frame__ph {
  color: rgba(255, 255, 255, 0.86);
}
.visual ~ .frame__ph::before {
  background: rgba(255, 255, 255, 0.58);
}

/* ===== 共通セクション ===== */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(5.8rem, 12vh, 11rem) var(--pad-x);
  border-top: 1px solid var(--line-soft);
}
.section:nth-of-type(even) {
  background: var(--paper-2);
}

/* セクション見出し（セリフ番号＋細ラベル＋和文タイトル）*/
.head {
  display: flex;
  align-items: flex-start;
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-bottom: clamp(3.2rem, 7vw, 6rem);
}
.head__num {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: 0;
  color: rgba(17, 17, 16, 0.18);
  flex-shrink: 0;
}
.head__text { padding-top: 0.4rem; }
.head__label {
  display: block;
  font-family: var(--font-grotesk);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.3rem;
}
.head__title {
  font-family: var(--font-jp);
  font-size: clamp(1.5rem, 3.4vw, 2.8rem);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 0.03em;
  color: var(--black);
}
.head__link {
  margin-left: auto;
  align-self: center;
  font-family: var(--font-grotesk);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--soft);
  text-decoration: none;
  transition: color 0.18s ease-out;
}
.head__link:hover { color: var(--black); }

/* ===== ABOUT ===== */
.about__body {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2.5rem, 7vw, 7rem);
}
.about__statement {
  font-family: var(--font-jp);
  font-size: clamp(1.1rem, 1.9vw, 1.55rem);
  font-weight: 300;
  line-height: 2.1;
  letter-spacing: 0.03em;
  color: var(--ink);
  max-width: 34rem;
}
.about__detail p {
  font-size: 0.8rem;
  line-height: 2.4;
  letter-spacing: 0.05em;
  color: var(--soft);
}
.about__meta {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
}
.about__meta > div {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.about__meta dt {
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray);
  padding-top: 0.3rem;
}
.about__meta dd {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.statement-band {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 1fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
  margin-top: clamp(4rem, 10vw, 8rem);
  padding-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--line-soft);
  position: relative;
}
.statement-band::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: clamp(4rem, 12vw, 9rem);
  height: 1px;
  background: var(--accent);
}
.statement-band__label {
  display: block;
  margin-bottom: 1.3rem;
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gray);
}
.statement-band p {
  max-width: 35rem;
  font-size: clamp(1rem, 1.45vw, 1.28rem);
  line-height: 2.05;
  letter-spacing: 0.04em;
}
.statement-band__visual {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--placeholder-dark);
}
.statement-band__visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(1.02);
}

/* ===== SERVICES ===== */
.services {
  list-style: none;
  border-top: 1px solid var(--line);
}
.services__item {
  display: grid;
  grid-template-columns: 5rem 1fr 2fr;
  gap: clamp(1rem, 4vw, 4rem);
  align-items: baseline;
  padding: clamp(2rem, 4.5vw, 3.2rem) 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  transition: padding-left 0.18s ease-out, background-color 0.18s ease-out;
}
.services__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.18s ease-out;
}
.services__item:hover {
  padding-left: 1rem;
  background: rgba(255, 255, 255, 0.42);
}
.services__item:hover::before { width: 5rem; }
.services__no {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--gray);
}
.services__name {
  font-family: var(--font-jp);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--black);
}
.services__scope {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-grotesk);
  font-size: 0.55rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.services__desc {
  font-size: 0.76rem;
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--soft);
}

/* ===== PROCESS ===== */
.section--process {
  background: var(--paper-2);
}
.process {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.process__item {
  min-height: 16rem;
  padding: clamp(1.6rem, 3vw, 2.4rem) clamp(1.2rem, 2.5vw, 2rem);
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.34);
}
.process__item:first-child { border-left: 1px solid var(--line-soft); }
.process__no {
  display: block;
  margin-bottom: clamp(3rem, 7vw, 5rem);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: rgba(17, 17, 16, 0.42);
}
.process__item h3 {
  margin-bottom: 1rem;
  font-size: clamp(1rem, 1.4vw, 1.24rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--black);
}
.process__item p {
  font-size: 0.74rem;
  line-height: 2.05;
  letter-spacing: 0.04em;
  color: var(--soft);
}

/* ===== WORKS ===== */
.works {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2.5rem, 5vw, 4.5rem) clamp(2rem, 4vw, 3.5rem);
}
.works__link { display: block; text-decoration: none; color: inherit; }
.works__item:nth-child(1) .frame--work { aspect-ratio: 16 / 10; }
.works__item:nth-child(2) { padding-top: clamp(2rem, 5vw, 5rem); }
.works__item:nth-child(3) { padding-top: clamp(1rem, 2vw, 2.2rem); }
.frame--work {
  aspect-ratio: 4 / 3;
  background-color: var(--placeholder-dark);
}
.frame--work::after,
.archive-card__frame::after {
  border-color: rgba(17, 17, 16, 0.18);
}
.works__caption {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1.5rem;
}
.works__year {
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: var(--gray);
}
.works__name {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--black);
  transition: opacity 0.18s ease-out;
}
.works__link:hover .works__name { opacity: 0.45; }
.works__type {
  font-family: var(--font-jp);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.07em;
  color: var(--soft);
}
.works__viewall { margin-top: clamp(3rem, 6vw, 4.5rem); }

/* ===== PAGE / WORKS ARCHIVE ===== */
.page-hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vh, 6rem) var(--pad-x) clamp(5rem, 10vh, 8rem);
  border-bottom: 1px solid var(--line-soft);
  background: var(--paper);
}
.page-hero::after {
  content: '';
  position: absolute;
  left: var(--pad-x);
  bottom: clamp(3rem, 7vh, 5rem);
  width: clamp(5rem, 16vw, 14rem);
  height: 1px;
  background: var(--accent);
}
.page-hero__inner {
  max-width: 52rem;
}
.page-hero__label,
.archive-note__label,
.archive-contact__label {
  display: block;
  margin-bottom: 1.2rem;
  font-family: var(--font-grotesk);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gray);
}
.page-hero__title {
  margin-bottom: 1.8rem;
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 0.95;
  color: var(--black);
}
.page-hero__lead {
  max-width: 37rem;
  font-size: clamp(0.92rem, 1.3vw, 1.08rem);
  line-height: 2.05;
  letter-spacing: 0.04em;
  color: var(--soft);
}
.archive-note {
  display: grid;
  grid-template-columns: 14rem minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-bottom: clamp(3rem, 7vw, 5.5rem);
  padding: 1.7rem 0;
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--line-soft);
}
.archive-note p {
  max-width: 40rem;
  font-size: 0.82rem;
  line-height: 2.1;
  color: var(--soft);
}
.archive-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2.5rem, 5vw, 5rem) clamp(2rem, 4vw, 3.5rem);
}
.archive-card a {
  display: block;
  color: inherit;
  text-decoration: none;
}
.archive-card:nth-child(even) {
  padding-top: clamp(2rem, 5vw, 4.5rem);
}
.archive-card__frame {
  aspect-ratio: 16 / 10;
  margin-bottom: 1.5rem;
  background: var(--panel);
}
.archive-card__year {
  display: block;
  margin-bottom: 0.7rem;
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  letter-spacing: 0.26em;
  color: var(--gray);
}
.archive-card h2 {
  margin-bottom: 0.45rem;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  font-weight: 400;
  color: var(--black);
}
.archive-card p {
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  color: var(--soft);
}
.section--archive-contact {
  padding-top: clamp(4rem, 8vw, 7rem);
}
.archive-contact {
  max-width: 54rem;
}
.archive-contact h2 {
  font-size: clamp(1.45rem, 3.4vw, 2.8rem);
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.03em;
}

/* ===== CONTACT ===== */
.contact__lead {
  font-family: var(--font-jp);
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  font-weight: 300;
  line-height: 2.1;
  color: var(--ink);
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
  max-width: 36rem;
}
.contact__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.6rem clamp(2rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
  padding-top: 2.8rem;
}
.contact__label {
  display: block;
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.85rem;
}
.contact__value {
  font-size: 0.84rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--ink);
}
/* Instagram などSNSリンク（アイコン＋テキスト） */
.contact__sns {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: opacity 0.3s ease;
}
.contact__sns:hover {
  opacity: 0.55;
}
.contact__sns-icon {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
}
.contact__cta {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding: 1.3rem 0;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-jp);
  font-size: 0.84rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--ink);
  transition: gap 0.18s ease-out;
}
.contact__cta:hover { gap: 1.55rem; }
.contact__cta svg { width: 40px; height: 12px; }

/* ===== フッター ===== */
.site-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.5rem, 6vw, 6rem) var(--pad-x) clamp(1.6rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.4fr;
  gap: clamp(2rem, 4vw, 4rem) clamp(1.5rem, 3vw, 3rem);
  align-items: start;
}

/* ブランド面 */
.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 1.1rem;
  color: inherit;
  text-decoration: none;
}
.footer__brand-logo {
  display: block;
  height: clamp(22px, 2.2vw, 30px);
  width: auto;
}
.site-footer__tagline {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--soft);
}

/* 各カラム */
.site-footer__heading {
  font-family: var(--font-grotesk);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1.2rem;
}
.site-footer__col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.site-footer__col li {
  font-family: var(--font-jp);
  font-size: 0.82rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--ink);
}
.site-footer__col a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}
.site-footer__col a:hover { color: var(--gray); }

/* 下段バー */
.site-footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem 2rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: clamp(1.4rem, 2.5vw, 2rem);
  border-top: 1px solid var(--line-soft);
}
.site-footer__bar span,
.site-footer__top {
  font-family: var(--font-grotesk);
  font-size: 0.56rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--gray);
}
.site-footer__reg { font-family: var(--font-jp) !important; letter-spacing: 0.1em !important; }
.site-footer__copy { text-transform: uppercase; }
.site-footer__top {
  margin-left: auto;
  text-decoration: none;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  transition: color 0.3s ease;
}
.site-footer__top:hover { color: var(--ink); }

/* ===== レスポンシブ ===== */
@media (max-width: 900px) {
  .nav {
    padding: calc(0.8rem + env(safe-area-inset-top)) var(--pad-x) 0.8rem;
  }
  .nav__logo img { height: 38px; }
  .hero {
    min-height: auto;
    padding-top: 7.5rem;
    padding-bottom: 4.5rem;
  }
  .hero::before {
    top: 7rem;
    right: 1.5rem;
    width: 13rem;
    height: 13rem;
  }
  .hero::after { width: 6rem; }
  .hero__abstract {
    top: 7rem;
    right: 0.8rem;
    font-size: 8rem;
  }
  .hero__main {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 2.2rem;
    margin-top: clamp(4.5rem, 12vh, 7rem);
  }
  .hero__strip {
    height: auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.6rem;
    padding: 0.65rem;
  }
  .hero__cluster { display: contents; }
  .hf { height: auto; width: auto; }
  .hf--a, .hf--b, .hf--c, .hf--d {
    aspect-ratio: 4 / 3;
    margin-left: 0;
    transform: none;
  }
  .about__body { grid-template-columns: 1fr; }
  .statement-band { grid-template-columns: 1fr; }
  .head { flex-wrap: wrap; }
  .services__item { grid-template-columns: 3.5rem 1fr; gap: 0.5rem 1.5rem; }
  .services__desc { grid-column: 1 / -1; margin-top: 0.4rem; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .process__item:nth-child(odd) { border-left: 1px solid var(--line-soft); }
  .works { grid-template-columns: 1fr; }
  .works__item:nth-child(2),
  .works__item:nth-child(3) { padding-top: 0; }
  .contact__grid { grid-template-columns: 1fr; }
  .archive-note { grid-template-columns: 1fr; }
  .archive-grid { grid-template-columns: 1fr; }
  .archive-card:nth-child(even) { padding-top: 0; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  :root { --pad-x: 1.5rem; }
  .site-footer__bar { flex-direction: column; align-items: flex-start; gap: 0.6rem; }
  .site-footer__top { margin-left: 0; }
  .nav { align-items: flex-start; gap: 0.9rem; }
  .nav__logo img { height: 34px; }
  .nav__menu {
    flex: 1;
    min-width: 0;
    justify-content: flex-end;
    gap: 0.65rem;
    overflow: visible;
  }
  .nav__menu a {
    font-size: 0.5rem;
    letter-spacing: 0.14em;
    white-space: nowrap;
  }
  .hero__main { margin-top: clamp(5rem, 14vh, 7rem); }
  .hero__title { font-size: clamp(2.05rem, 10vw, 2.9rem); }
  .hero__lead {
    max-width: 19rem;
    font-size: 0.76rem;
  }
  .hero__foot {
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.9rem;
  }
  .hero__foot-label,
  .hero__foot-place {
    font-size: 0.52rem;
    letter-spacing: 0.2em;
    line-height: 1.7;
  }
  .hero__rule { flex: 1; min-width: 2rem; margin-top: 0.62rem; }
  .section { padding-top: 5rem; padding-bottom: 5.5rem; }
  .statement-band {
    margin-top: 3.5rem;
  }
  .statement-band__visual { aspect-ratio: 4 / 3; }
  .process { grid-template-columns: 1fr; }
  .process__item {
    min-height: auto;
    border-left: 1px solid var(--line-soft);
  }
  .process__no {
    margin-bottom: 2.5rem;
  }
  .page-hero {
    padding-top: 3rem;
    padding-bottom: 4.5rem;
  }
  .page-hero__title {
    font-size: clamp(2.2rem, 11vw, 3.4rem);
  }
  .head__link { margin-left: 0; width: 100%; margin-top: 0.5rem; }
  .about__meta > div { grid-template-columns: 1fr; gap: 0.3rem; }
  .contact__value { overflow-wrap: anywhere; }
}

/* =====================================================================
   HOME INDEX（Pattern 02を本番トップ用に調整）
   ===================================================================== */
.home-index {
  min-height: 100vh;
  background: #f7f6f2;
  color: #111;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  line-height: 1.5;
  border: 1px solid #111;
}

.home-index a {
  color: inherit;
  text-decoration: none;
}

.home-index img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(100% - 7.5vw, 1780px);
  margin: 0 auto;
  padding: 2rem 0 1.6rem;
  border-bottom: 1px solid rgba(17, 17, 17, 0.55);
}

.site-header--line {
  width: 100%;
  padding: 1.55rem 3.1vw;
  border-bottom-color: rgba(17, 17, 17, 0.34);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 1.45rem;
  font-size: clamp(1rem, 1.05vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.brand img {
  width: clamp(48px, 4vw, 72px);
  height: clamp(48px, 4vw, 72px);
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.08);
}

.brand--compact img {
  width: clamp(40px, 3vw, 56px);
  height: clamp(40px, 3vw, 56px);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.3rem, 2.6vw, 3.4rem);
  font-size: clamp(0.72rem, 0.72vw, 0.88rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.site-nav span {
  color: rgba(17, 17, 17, 0.55);
}

.index-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.58fr) minmax(620px, 1fr);
  min-height: calc(100vh - 96px);
}

.index-intro {
  position: relative;
  min-height: 610px;
  padding: clamp(2.6rem, 5vw, 5.4rem) 3.1vw 2rem;
  border-right: 1px solid rgba(17, 17, 17, 0.34);
}

.index-intro__line {
  position: absolute;
  top: 2rem;
  left: 3.1vw;
  width: 1px;
  height: 15rem;
  background: rgba(17, 17, 17, 0.38);
}

.index-intro h1 {
  max-width: 31rem;
  margin: 0 0 7.8rem clamp(5.5rem, 8vw, 10rem);
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-size: clamp(2.2rem, 3vw, 4rem);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: -0.04em;
}

.index-intro__number {
  margin: 0;
  font-size: clamp(8rem, 12vw, 15.5rem);
  font-weight: 400;
  line-height: 0.78;
  letter-spacing: -0.07em;
}

.index-intro__accent {
  display: block;
  width: 4.1rem;
  height: 2px;
  margin: 3rem 0 1.75rem;
  background: #111;
}

.index-intro__label {
  margin: 0;
  font-size: clamp(1.2rem, 1.5vw, 2rem);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: 0.02em;
}

.index-intro__copy {
  max-width: 26rem;
  margin: 2rem 0 0;
  color: rgba(17, 17, 17, 0.72);
  font-size: clamp(0.86rem, 0.95vw, 1rem);
  line-height: 1.85;
}

.project-board {
  display: grid;
  grid-template-columns: 1.05fr 1fr 1fr;
  grid-auto-rows: minmax(250px, 31vh);
  border-bottom: 1px solid rgba(17, 17, 17, 0.34);
}

.project-card {
  display: grid;
  grid-template-rows: 1fr auto auto;
  min-width: 0;
  border-right: 1px solid rgba(17, 17, 17, 0.34);
  border-bottom: 1px solid rgba(17, 17, 17, 0.34);
  background: #f7f6f2;
}

.project-card--large {
  grid-row: span 2;
}

.project-card img {
  min-height: 0;
  filter: grayscale(1) contrast(1.08);
  transition: filter 0.2s ease-out, transform 0.2s ease-out;
}

.project-card:hover img {
  filter: grayscale(1) contrast(1.18);
  transform: scale(1.015);
}

.project-card span {
  padding: 0.72rem 0.85rem 0.08rem;
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.25;
}

.project-card small {
  padding: 0 0.85rem 0.78rem;
  font-size: 0.72rem;
  color: rgba(17, 17, 17, 0.68);
}

.service-strip {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(17, 17, 17, 0.34);
}

.service-strip article {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1.5rem;
  min-height: 132px;
  padding: 2rem 3vw;
  border-right: 1px solid rgba(17, 17, 17, 0.34);
}

.service-strip span {
  font-size: 1rem;
  line-height: 1.25;
}

.service-strip h2 {
  margin: 0 0 0.65rem;
  font-size: 0.98rem;
  font-weight: 500;
  line-height: 1.25;
}

.service-strip p {
  grid-column: 2;
  max-width: 16rem;
  margin: 0;
  font-size: 0.76rem;
  color: rgba(17, 17, 17, 0.7);
  line-height: 1.55;
}

.info-section,
.detail-grid,
.contact-panel,
.home-footer {
  border-top: 1px solid rgba(17, 17, 17, 0.34);
}

.info-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 8rem);
  padding: clamp(4rem, 7vw, 7rem) 3.1vw;
}

.info-section__head span,
.detail-grid__label,
.contact-panel__label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.info-section__head h2,
.contact-panel h2 {
  max-width: 36rem;
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 4.2rem);
  font-weight: 400;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.info-section__body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 4rem);
}

.info-section__body p,
.contact-panel p {
  margin: 0;
  color: rgba(17, 17, 17, 0.74);
  font-size: 0.92rem;
  line-height: 1.9;
}

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

.detail-grid > section {
  padding: clamp(2.5rem, 5vw, 5rem) 3.1vw;
  border-right: 1px solid rgba(17, 17, 17, 0.34);
}

.detail-grid dl {
  margin: 0;
}

.detail-grid dl > div {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.4rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(17, 17, 17, 0.2);
}

.detail-grid dt {
  color: rgba(17, 17, 17, 0.55);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.detail-grid dd {
  margin: 0;
  font-size: 0.9rem;
}

.compact-process {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.compact-process li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(17, 17, 17, 0.2);
  font-size: 0.95rem;
}

.compact-process span {
  color: rgba(17, 17, 17, 0.55);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 8rem);
  padding: clamp(4rem, 7vw, 7rem) 3.1vw;
}

.contact-panel__list {
  display: grid;
  gap: 1.2rem;
}

.contact-panel__list p {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(17, 17, 17, 0.2);
}

.contact-panel__list span {
  color: rgba(17, 17, 17, 0.55);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.home-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 3.1vw;
  color: rgba(17, 17, 17, 0.64);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.home-footer img {
  width: 46px;
  height: 46px;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.08);
}

@media (max-width: 980px) {
  .site-header,
  .site-header--line {
    width: 100%;
    padding: 1.2rem 1.1rem;
  }

  .brand {
    gap: 0.9rem;
    font-size: 0.86rem;
    letter-spacing: 0.12em;
  }

  .brand img {
    width: 42px;
    height: 42px;
  }

  .site-nav {
    gap: 0.9rem;
    font-size: 0.68rem;
  }

  .index-layout {
    grid-template-columns: 1fr;
  }

  .index-intro {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.34);
  }

  .index-intro h1 {
    margin: 0 0 4rem 4rem;
  }

  .project-board {
    grid-template-columns: 1fr;
    grid-auto-rows: minmax(260px, 52vw);
  }

  .project-card--large {
    grid-row: auto;
  }

  .service-strip,
  .info-section,
  .detail-grid,
  .contact-panel,
  .info-section__body {
    grid-template-columns: 1fr;
  }

  .detail-grid > section {
    border-right: 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.34);
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .index-intro__line {
    left: 1.1rem;
    height: 10rem;
  }

  .index-intro h1 {
    margin-left: 2.5rem;
    font-size: 2.35rem;
  }

  .index-intro__number {
    font-size: 8rem;
  }

  .service-strip article {
    padding: 1.4rem 1.1rem;
  }

  .detail-grid dl > div,
  .contact-panel__list p {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .home-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* =====================================================================
   HERO GATEWAY（トップページ：ヒーロー完結型）
   ===================================================================== */
.home-gateway {
  min-height: 100dvh;
  background: #f4f4f1;
  color: #111;
  font-family: "Noto Serif JP", serif;
  line-height: 1.7;
  overflow-x: hidden;
}

.home-gateway a {
  color: inherit;
  text-decoration: none;
}

.gateway {
  position: relative;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(1.2rem, 2.6vw, 2.4rem);
  isolation: isolate;
}

.gateway::before {
  content: "";
  position: absolute;
  inset: clamp(0.7rem, 1.3vw, 1.1rem);
  border: 1px solid rgba(17, 17, 17, 0.35);
  pointer-events: none;
  z-index: -1;
}

.gateway__header,
.gateway__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  position: relative;
  z-index: 2;
}

.gateway__brand {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-grotesk);
  font-size: clamp(0.72rem, 0.8vw, 0.86rem);
  font-weight: 400;
  letter-spacing: 0.18em;
}

.gateway__brand img {
  width: clamp(42px, 4vw, 58px);
  height: clamp(42px, 4vw, 58px);
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.08);
}

.gateway__nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.8vw, 3.2rem);
  font-family: var(--font-grotesk);
  font-size: clamp(0.62rem, 0.72vw, 0.78rem);
  font-weight: 400;
  letter-spacing: 0.2em;
}

.gateway__nav a,
.gateway__links a {
  transition: color 0.18s ease-out, background-color 0.18s ease-out;
}

.gateway__nav a:hover,
.gateway__links a:hover {
  color: rgba(17, 17, 17, 0.55);
}

.gateway__hero {
  position: relative;
  z-index: 2;
  align-self: center;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.42fr);
  align-items: end;
  gap: clamp(2rem, 7vw, 8rem);
  width: min(100%, 1480px);
  margin: 0 auto;
  padding: clamp(4rem, 8vh, 7rem) clamp(0.5rem, 2vw, 2rem);
}

.gateway__label {
  display: block;
  margin-bottom: clamp(1rem, 2vw, 1.6rem);
  font-family: var(--font-grotesk);
  font-size: clamp(0.64rem, 0.72vw, 0.78rem);
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(17, 17, 17, 0.58);
}

.gateway__copy h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(4rem, 10vw, 11rem);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: 0;
  color: #111;
}

.gateway__copy p {
  max-width: 34rem;
  margin: clamp(1.5rem, 3vw, 2.6rem) 0 0;
  color: rgba(17, 17, 17, 0.72);
  font-size: clamp(0.88rem, 1vw, 1.02rem);
  line-height: 2.1;
  letter-spacing: 0.03em;
}

.gateway__links {
  display: grid;
  border-top: 1px solid rgba(17, 17, 17, 0.4);
}

.gateway__links a {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  align-items: baseline;
  gap: 1rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.24);
}

.gateway__links span,
.gateway__links small {
  font-family: var(--font-grotesk);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: rgba(17, 17, 17, 0.56);
}

.gateway__links strong {
  font-size: clamp(1rem, 1.45vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.gateway__visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.18;
  overflow: hidden;
}

.gateway__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(244, 244, 241, 0.96) 0%, rgba(244, 244, 241, 0.76) 46%, rgba(244, 244, 241, 0.9) 100%);
}

.gateway__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

.gateway__footer {
  font-family: var(--font-grotesk);
  font-size: clamp(0.58rem, 0.7vw, 0.72rem);
  letter-spacing: 0.14em;
  color: rgba(17, 17, 17, 0.62);
}

/* =====================================================================
   PROFILE / CONTACT PAGES
   ===================================================================== */
.profile-page,
.contact-page {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(20rem, 1fr);
  gap: clamp(2.5rem, 7vw, 7rem);
}

.profile-page {
  align-items: start;
  grid-template-columns: minmax(0, 0.58fr) minmax(20rem, 1fr);
}

.profile-page__portrait {
  grid-row: span 2;
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--panel);
}

.profile-page__portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(1) contrast(1.04);
}

.profile-page__statement {
  display: grid;
  gap: 1.6rem;
}

.profile-page__statement p,
.contact-page__message p {
  margin: 0;
  font-size: clamp(0.92rem, 1.2vw, 1.08rem);
  line-height: 2.15;
  color: var(--soft);
}

.profile-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.profile-list > div {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1.4rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.profile-list dt {
  font-family: var(--font-grotesk);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
}

.profile-list dd {
  margin: 0;
  font-size: 0.84rem;
  color: var(--ink);
}

.profile-list a {
  color: inherit;
}

.contact-page__message span {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-grotesk);
  font-size: 0.62rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gray);
}

.contact-page__message h2 {
  margin: 0 0 1.8rem;
  font-size: clamp(1.7rem, 3.6vw, 3.4rem);
  font-weight: 400;
  line-height: 1.35;
  color: var(--black);
}

.contact-page__message .profile-list {
  margin-top: 0;
}

/* ===== お問い合わせフォーム ===== */
.contact-form {
  display: grid;
  gap: clamp(1.7rem, 3.2vw, 2.4rem);
  align-self: start;
}

.contact-form__field {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.contact-form__field > label,
.contact-form__group legend {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0;
  font-family: var(--font-grotesk);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
}

.contact-form__req,
.contact-form__opt {
  padding: 0.12rem 0.5rem;
  font-family: var(--font-jp);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--soft);
  border: 1px solid var(--line);
}

.contact-form__req {
  color: var(--black);
  border-color: var(--accent);
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 0;
  font-family: var(--font-jp);
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  transition: border-color 0.2s ease;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-bottom-color: var(--black);
}

.contact-form ::placeholder {
  color: var(--placeholder-dark);
}

.contact-form__checks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 0.7rem 1.5rem;
}

.contact-form__check {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-jp);
  font-size: 0.88rem;
  color: var(--ink);
  cursor: pointer;
}

.contact-form__check input {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  accent-color: var(--accent);
}

.contact-form__submit {
  justify-self: start;
  margin-top: 0.6rem;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--ink);
  cursor: pointer;
}

@media (max-width: 900px) {
  .gateway {
    min-height: 100dvh;
  }

  .gateway__header {
    align-items: flex-start;
    flex-direction: column;
  }

  .gateway__hero {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 2.4rem;
    padding-top: 3.8rem;
    padding-bottom: 3.8rem;
  }

  .gateway__copy h1 {
    font-size: clamp(3.6rem, 17vw, 6.4rem);
  }

  .gateway__footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .profile-page,
  .contact-page {
    grid-template-columns: 1fr;
  }

  .profile-page__portrait {
    grid-row: auto;
    max-width: 34rem;
  }
}

@media (max-width: 600px) {
  .gateway {
    min-height: 100dvh;
    padding: 1rem;
  }

  .gateway::before {
    inset: 0.55rem;
  }

  .gateway__nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.8rem;
  }

  .gateway__hero {
    gap: 1.6rem;
    padding: 1.8rem 0.9rem 2rem;
  }

  .gateway__label {
    margin-bottom: 0.8rem;
    font-size: 0.58rem;
  }

  .gateway__copy h1 {
    font-size: clamp(3.05rem, 14.5vw, 4.25rem);
  }

  .gateway__copy p {
    margin-top: 1.1rem;
    font-size: 0.76rem;
    line-height: 1.85;
  }

  .gateway__links a {
    padding: 0.82rem 0;
  }

  .gateway__links a {
    grid-template-columns: 2.2rem 1fr;
  }

  .gateway__links small {
    grid-column: 2;
  }

  .gateway__footer {
    padding: 0 0.9rem 0.5rem;
    font-size: 0.54rem;
  }

  .profile-list > div {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

/* =====================================================================
   HERO BOARD（トップページ：参照画像型のプロジェクトインデックス）
   ===================================================================== */
.home-board {
  min-height: 100dvh;
  margin: 0;
  background: #f7f7f4;
  color: #0f0f0e;
  font-family: var(--font-grotesk);
  overflow-x: hidden;
}

.home-board a {
  color: inherit;
  text-decoration: none;
}

.board {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid rgba(15, 15, 14, 0.78);
}

.board__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: clamp(4.8rem, 7vw, 6.6rem);
  padding: 1.15rem clamp(1.5rem, 3vw, 3.4rem);
  border-bottom: 1px solid rgba(15, 15, 14, 0.24);
}

.board__brand {
  display: inline-flex;
  align-items: center;
  gap: 1.3rem;
  min-width: 0;
  font-size: clamp(0.92rem, 1.15vw, 1.22rem);
  font-weight: 500;
  letter-spacing: 0.28em;
  white-space: nowrap;
}

.board__brand img {
  display: none;
}

.board__brand::before {
  content: "";
  width: clamp(38px, 3.3vw, 52px);
  height: clamp(38px, 3.3vw, 52px);
  flex: 0 0 auto;
  background-image: url("image_data/logo.png");
  background-repeat: no-repeat;
  background-position: center top;
  background-size: clamp(67px, 5.8vw, 92px) auto;
  filter: grayscale(1) contrast(1.18);
}

.board__nav {
  display: flex;
  align-items: center;
  gap: clamp(1.4rem, 2.4vw, 3rem);
  font-size: clamp(0.68rem, 0.82vw, 0.9rem);
  font-weight: 400;
  letter-spacing: 0.08em;
}

.board__nav span {
  color: rgba(15, 15, 14, 0.55);
}

.board__stage {
  display: grid;
  grid-template-columns: minmax(11rem, 0.28fr) minmax(30rem, 0.98fr) minmax(31rem, 1.12fr);
  min-height: 0;
  border-bottom: 1px solid rgba(15, 15, 14, 0.24);
}

.board__index {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.4rem, 2.8vw, 3.2rem);
  border-right: 1px solid rgba(15, 15, 14, 0.24);
}

.board__rule {
  width: 1px;
  height: clamp(8rem, 18vh, 13.5rem);
  margin-bottom: clamp(1.7rem, 5vh, 3rem);
  background: rgba(15, 15, 14, 0.32);
}

.board__number {
  margin: 0;
  font-size: clamp(7rem, 11vw, 12rem);
  font-weight: 300;
  line-height: 0.82;
  letter-spacing: -0.08em;
}

.board__accent {
  width: 4.1rem;
  height: 2px;
  margin: clamp(1.2rem, 3vh, 2rem) 0 1.4rem;
  background: #9d4b34;
}

.board__label {
  margin: 0;
  font-size: clamp(1.05rem, 1.4vw, 1.55rem);
  font-weight: 400;
  line-height: 1.26;
  letter-spacing: 0.08em;
}

.board__main {
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  padding: clamp(2rem, 4vw, 4.2rem) clamp(1.2rem, 2.3vw, 2.2rem) 0;
  border-right: 1px solid rgba(15, 15, 14, 0.24);
}

.board__main h1 {
  max-width: 38rem;
  margin: 0 0 clamp(1.3rem, 3vh, 2rem);
  padding-left: clamp(0rem, 7vw, 9rem);
  font-family: var(--font-grotesk);
  font-size: clamp(2.1rem, 3.4vw, 4.2rem);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.025em;
}

.board-card {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto auto;
  min-width: 0;
  min-height: 0;
  background: #f7f7f4;
  overflow: hidden;
}

.board-card img {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  object-fit: cover;
  filter: grayscale(0.88) contrast(1.04) brightness(1.02);
  transition: transform 0.24s ease-out, filter 0.24s ease-out;
}

.board-card:hover img {
  transform: scale(1.018);
  filter: grayscale(0.65) contrast(1.08) brightness(1.02);
}

.board-card span {
  padding: 0.64rem 1rem 0.06rem;
  font-size: clamp(0.66rem, 0.72vw, 0.78rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 0.035em;
}

.board-card small {
  padding: 0 1rem 0.72rem;
  font-size: clamp(0.6rem, 0.66vw, 0.72rem);
  color: rgba(15, 15, 14, 0.68);
}

.board-card--feature {
  position: relative;
  min-height: clamp(20rem, 50vh, 33rem);
}

.board-card--feature::before {
  content: "";
  position: absolute;
  top: -1rem;
  left: -0.6rem;
  width: 1px;
  height: 100%;
  background: rgba(15, 15, 14, 0.24);
}

.board-card--feature img {
  aspect-ratio: 16 / 10;
}

.board__projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: minmax(0, 1fr);
  min-height: 0;
}

.board__projects .board-card {
  border-right: 1px solid rgba(15, 15, 14, 0.24);
  border-bottom: 1px solid rgba(15, 15, 14, 0.24);
}

.board__projects .board-card:nth-child(even) {
  border-right: 0;
}

.board__services {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  min-height: clamp(7rem, 14vh, 10.5rem);
}

.board__services a {
  display: grid;
  grid-template-columns: 2.3rem minmax(0, 1fr);
  align-content: center;
  column-gap: 1.4rem;
  row-gap: 0.35rem;
  padding: 1.3rem clamp(1rem, 2.7vw, 3.1rem);
  border-right: 1px solid rgba(15, 15, 14, 0.24);
}

.board__services a:last-child {
  border-right: 0;
}

.board__services span {
  grid-row: span 2;
  font-size: 0.95rem;
  line-height: 1.25;
}

.board__services strong {
  font-size: clamp(0.8rem, 0.88vw, 1rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.board__services small {
  max-width: 14rem;
  font-size: clamp(0.62rem, 0.68vw, 0.74rem);
  line-height: 1.45;
  color: rgba(15, 15, 14, 0.66);
}

@media (max-width: 1180px) {
  .board {
    min-height: auto;
  }

  .board__stage {
    grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr);
  }

  .board__projects {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid rgba(15, 15, 14, 0.24);
  }

  .board__projects .board-card:nth-child(even) {
    border-right: 1px solid rgba(15, 15, 14, 0.24);
  }

  .board__projects .board-card:last-child {
    border-right: 0;
  }
}

@media (max-width: 760px) {
  .board__header {
    align-items: flex-start;
    flex-direction: column;
    min-height: auto;
    padding: 1.1rem;
  }

  .board__brand {
    gap: 0.9rem;
    font-size: 0.82rem;
    letter-spacing: 0.16em;
  }

  .board__brand img {
    display: none;
  }

  .board__brand::before {
    width: 40px;
    height: 40px;
    background-size: 70px auto;
  }

  .board__nav {
    width: 100%;
    justify-content: space-between;
    gap: 0.8rem;
    font-size: 0.66rem;
  }

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

  .board__index {
    min-height: 15rem;
    justify-content: flex-end;
    border-right: 0;
    border-bottom: 1px solid rgba(15, 15, 14, 0.24);
    padding: 1.3rem;
  }

  .board__rule {
    height: 5.5rem;
    margin-bottom: 1.4rem;
  }

  .board__number {
    font-size: 6.4rem;
  }

  .board__main {
    border-right: 0;
    padding: 1.6rem 1.1rem 0;
  }

  .board__main h1 {
    padding-left: 0;
    font-size: clamp(2.35rem, 10vw, 3.5rem);
  }

  .board-card--feature {
    min-height: 24rem;
  }

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

  .board__projects .board-card,
  .board__projects .board-card:nth-child(even),
  .board__projects .board-card:last-child {
    min-height: 17rem;
    border-right: 0;
  }

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

  .board__services a,
  .board__services a:last-child {
    min-height: 6.4rem;
    border-right: 0;
    border-bottom: 1px solid rgba(15, 15, 14, 0.24);
  }
}

/* =========================================================
   HOME - Split Cover
   ========================================================= */
.home-split {
  min-height: 100dvh;
  background: #f7f6f2;
  color: #111;
  font-family: "Inter", "Noto Sans JP", sans-serif;
  font-weight: 400;
  line-height: 1.5;
  border: 1px solid #111;
}

.home-split a {
  color: inherit;
  text-decoration: none;
}

.split-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
  min-height: 96px;
  padding: 1.55rem 3.1vw;
  border-bottom: 1px solid rgba(17, 17, 17, 0.34);
  color: #111;
  font-family: "Inter", "Noto Sans JP", sans-serif;
}

/* 全ページでヘッダーの見た目を統一（下線・色・フォントを固定） */
.split-header a {
  color: inherit;
  text-decoration: none;
}

.split-brand {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  white-space: nowrap;
}

.logo-crop {
  position: relative;
  display: inline-block;
  overflow: hidden;
  flex: 0 0 auto;
}

.logo-crop img {
  position: absolute;
  display: block;
  height: auto;
  max-width: none;
  filter: grayscale(1) contrast(1.08);
}

.logo-crop--mark {
  width: clamp(40px, 3vw, 56px);
  height: clamp(40px, 3vw, 56px);
}

.logo-crop--mark img {
  top: 0;
  left: clamp(-21px, -1.14vw, -15px);
  width: clamp(70px, 5.22vw, 98px);
}

.logo-crop--word {
  width: clamp(150px, 10.6vw, 204px);
  height: clamp(12px, 0.86vw, 17px);
}

.logo-crop--word img {
  top: clamp(-141px, -7.35vw, -104px);
  left: 0;
  width: clamp(150px, 10.6vw, 204px);
}

.split-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.4vw, 3.2rem);
  font-size: clamp(0.7rem, 0.72vw, 0.88rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.split-nav span {
  color: rgba(17, 17, 17, 0.55);
}

.home-split .split-cover {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  min-height: calc(100dvh - 98px);
}

.home-split .split-cover__text {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  padding: clamp(2.4rem, 4vw, 5rem) clamp(2rem, 4vw, 5.5rem);
  border-right: 1px solid rgba(17, 17, 17, 0.34);
}

.home-split .split-cover__side {
  position: absolute;
  top: clamp(2.4rem, 4vw, 5rem);
  right: clamp(1.4rem, 2vw, 2.4rem);
  writing-mode: vertical-rl;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: rgba(17, 17, 17, 0.55);
}

.home-split .split-cover__head {
  width: min(100%, 46rem);
  padding-right: clamp(2rem, 5vw, 5rem);
}

.home-split .split-cover__head h1 {
  margin: 0;
  font-family: "DIN Condensed", "Saira Condensed", "Arial Narrow", sans-serif;
  font-size: clamp(3.6rem, 6.6vw, 8.2rem);
  font-weight: 600;
  line-height: 0.94;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.home-split .split-cover__head p {
  max-width: 26rem;
  margin: 2rem 0 0;
  font-size: clamp(0.86rem, 0.95vw, 1.02rem);
  line-height: 1.85;
  color: rgba(17, 17, 17, 0.7);
  text-wrap: pretty;
}

.home-split .split-cover__meta {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(17, 17, 17, 0.28);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(17, 17, 17, 0.6);
}

.home-split .split-cover__meta p {
  margin: 0;
}

.home-split .split-cover__visual {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  filter: grayscale(1);
}

.home-split .split-cover__visual img,
.split-slider__image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: calc(100dvh - 98px);
  object-fit: cover;
  object-position: center;
}

.split-slider__image {
  position: absolute;
  inset: 0;
  opacity: 0;
  animation: splitSlide 22.5s infinite;
}

.split-slider__image:first-child {
  position: relative;
}

.split-slider__image:nth-child(2) {
  animation-delay: 4.5s;
}

.split-slider__image:nth-child(3) {
  animation-delay: 9s;
}

.split-slider__image:nth-child(4) {
  animation-delay: 13.5s;
}

.split-slider__image:nth-child(5) {
  animation-delay: 18s;
}

@keyframes splitSlide {
  0% { opacity: 0; transform: scale(1.02); }
  3% { opacity: 1; }
  17% { opacity: 1; }
  20% { opacity: 0; transform: scale(1.06); }
  100% { opacity: 0; transform: scale(1.06); }
}

@media (max-width: 900px) {
  .split-header {
    align-items: flex-start;
    flex-direction: column;
    min-height: auto;
    padding: 1.1rem;
  }

  .split-brand {
    gap: 0.9rem;
  }

  .split-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    max-width: 100%;
    gap: 0;
    font-size: 0.66rem;
  }

  .split-nav a {
    min-width: 0;
  }

  .split-nav a:nth-of-type(2) {
    text-align: center;
  }

  .split-nav a:nth-of-type(3) {
    text-align: right;
  }

  .split-nav span {
    display: none;
  }

  .home-split .split-cover {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .home-split .split-cover__text {
    min-height: 56dvh;
    padding: 2rem 1.1rem 1.4rem;
    border-right: 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.34);
    overflow: hidden;
  }

  .home-split .split-cover__side {
    position: static;
    writing-mode: horizontal-tb;
    margin-bottom: 2.2rem;
    font-size: 0.62rem;
    letter-spacing: 0.24em;
  }

  .home-split .split-cover__head {
    padding-right: 0;
  }

  .home-split .split-cover__head h1 {
    font-size: clamp(3.2rem, 15vw, 5.1rem);
  }

  .home-split .split-cover__meta {
    display: flex;
    align-items: end;
    justify-content: flex-end;
    margin-top: 3rem;
  }

  .home-split .split-cover__meta p {
    max-width: 12rem;
    text-align: right;
    overflow-wrap: anywhere;
  }

  .home-split .split-cover__visual {
    height: 44dvh;
  }

  .home-split .split-cover__visual img {
    min-height: 0;
  }
}

@media (max-width: 420px) {
  .split-nav {
    justify-content: space-between;
    font-size: 0.62rem;
  }

  .home-split .split-cover__head p {
    font-size: 0.82rem;
  }

  .home-split .split-cover__meta {
    font-size: 0.66rem;
    letter-spacing: 0.1em;
  }

  .home-split .split-cover__meta p {
    max-width: 11rem;
    text-align: right;
    overflow-wrap: anywhere;
  }
}

/* =====================================================================
   ANIMATION（Phase 1–4）
   ===================================================================== */

/* Lenis（慣性スクロール）用 */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* --- スクロール出現の基本 --- */
[data-reveal] {
  opacity: 0;
  transition:
    opacity 0.72s ease-out,
    transform 0.72s ease-out,
    clip-path 0.82s ease-out;
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}

/* フェード＋スライドアップ */
[data-reveal="up"] { transform: translateY(18px); }
[data-reveal="up"].is-in { opacity: 1; transform: none; }

/* フェードのみ */
[data-reveal="fade"].is-in { opacity: 1; }

/* 画像枠：下からクリップ展開 */
[data-reveal="clip"] {
  opacity: 1;
  clip-path: inset(100% 0 0 0);
}
[data-reveal="clip"].is-in { clip-path: inset(0 0 0 0); }

/* リスト要素のステガー（出現を一段ずつ遅らせる） */
.services__item[data-reveal]:nth-child(1) { --d: 0s; }
.services__item[data-reveal]:nth-child(2) { --d: 0.08s; }
.services__item[data-reveal]:nth-child(3) { --d: 0.16s; }
.services__item[data-reveal]:nth-child(4) { --d: 0.24s; }
.works__item[data-reveal]:nth-child(1) { --d: 0s; }
.works__item[data-reveal]:nth-child(2) { --d: 0.1s; }
.works__item[data-reveal]:nth-child(3) { --d: 0.2s; }
.works__item[data-reveal]:nth-child(4) { --d: 0.3s; }

/* --- ヒーロー罫線が横に伸びる --- */
.hero__rule {
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.7s ease-out 0.35s;
}
.hero.is-ready .hero__rule { transform: scaleX(1); }

/* --- Works画像のホバーズーム（将来の写真にも対応） --- */
.frame--work { transition: transform 0.18s ease-out; }
.works__link:hover .frame--work { transform: scale(0.985); }
.frame--work .frame__ph { transition: transform 0.18s ease-out; }
.works__link:hover .frame--work .frame__ph { transform: scale(1.04); }

/* --- モーション控えめ設定の尊重 --- */
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; clip-path: none !important; transition: none !important; }
  .hero__rule { transform: scaleX(1) !important; transition: none !important; }
  .split-slider__image { animation: none !important; opacity: 0; transform: none !important; }
  .split-slider__image:first-child { opacity: 1; }
  html { scroll-behavior: auto; }
}