/* ============================================================
   Trois Connect デザイン見本「三角の線」
   ミニマル・スイス × エディトリアル。色は 生成り / 墨 / 朱 の3つだけ
   ============================================================ */

:root {
  /* 色 */
  --color-bg: #f4f2ec;
  --color-text: #141414;
  --color-accent: #c63a22;
  --color-muted: rgba(20, 20, 20, 0.62);
  --color-rule: rgba(20, 20, 20, 0.16);
  --color-bg-muted: rgba(244, 242, 236, 0.66);
  --color-bg-rule: rgba(244, 242, 236, 0.18);

  /* フォント */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-text: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;

  /* タイポスケール */
  --text-hero: clamp(1.9rem, 4.4vw, 4.4rem);
  --text-h2: clamp(1.55rem, 2.9vw, 2.9rem);
  --text-h3: clamp(1.2rem, 1.8vw, 1.7rem);
  --text-num: clamp(6rem, 17vw, 17rem);
  --text-body: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
  --text-label: 0.75rem;

  /* 余白 */
  --gutter: clamp(20px, 4vw, 64px);
  --space-section: clamp(120px, 20vh, 240px);
  --header-h: 76px;

  /* モーション */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.9s;
}

/* ---------- ベース ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-text);
  font-size: var(--text-body);
  line-height: 1.9;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, figure, dl, dd { margin: 0; }
address { font-style: normal; }
::selection { background: var(--color-accent); color: var(--color-bg); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 4px; }

.skip {
  position: fixed; top: 8px; left: 8px; z-index: 10001;
  padding: 8px 16px; background: var(--color-text); color: var(--color-bg);
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

/* 英字ラベル */
.label {
  font-family: var(--font-display);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex; align-items: center; gap: 12px;
}
.label::before {
  content: ""; width: 10px; height: 9px; flex: none;
  background: var(--color-accent);
  clip-path: polygon(50% 0, 100% 100%, 0 100%); /* ロゴに呼応する小さな三角 */
}

.section { padding: var(--space-section) var(--gutter); }
.section--flush { padding-top: 0; }
[id] { scroll-margin-top: calc(var(--header-h) + 24px); } /* ページ内リンクで見出しが固定ヘッダーに隠れないように */
.section-head {
  display: grid; gap: 28px;
  padding-bottom: clamp(56px, 9vh, 112px);
}
.section-title {
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0.03em;
}

/* 下線スライドのリンク */
.link-line { position: relative; }
.link-line::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.6s var(--ease-out);
}
.link-line:hover::after, .link-line:focus-visible::after { transform: scaleX(1); transform-origin: left; }

/* ボタン：面が左から満ちる */
.btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 24px;
  margin-top: 40px; padding: 18px 28px;
  border: 1px solid var(--color-text);
  font-weight: 500; isolation: isolate;
  transition: color 0.5s var(--ease-out);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--color-text);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.6s var(--ease-out);
}
.btn i { font-style: normal; transition: transform 0.6s var(--ease-out); }
.btn:hover, .btn:focus-visible { color: var(--color-bg); }
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); transform-origin: left; }
.btn:hover i { transform: translateX(6px); }

/* ---------- プリローダー ---------- */
.loader { display: none; }
.js .loader {
  position: fixed; inset: 0; z-index: 10000;
  display: grid; place-items: center; align-content: center; gap: 28px;
  background: var(--color-bg);
}
.loader__logo { width: 168px; }
.loader__bar {
  width: 168px; height: 1px; background: var(--color-text);
  transform: scaleX(0); transform-origin: left;
}

/* ---------- カーソル ---------- */
.cursor {
  position: fixed; top: 0; left: 0; z-index: 9999;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-accent);
  pointer-events: none; opacity: 0;
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), opacity 0.3s;
}
.cursor.is-active { opacity: 1; }
.cursor.is-hover { width: 56px; height: 56px; opacity: 0.25; }
@media (hover: none) { .cursor { display: none; } }

/* ---------- ヘッダー ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gutter);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-rule);
  transition: transform 0.6s var(--ease-out);
}
.header.is-hidden { transform: translateY(-100%); }
.header__logo img { width: 92px; }
.nav__list { display: flex; align-items: center; gap: clamp(20px, 2.6vw, 40px); font-size: 0.9rem; font-weight: 500; }
.nav__cta {
  display: inline-block; padding: 10px 22px;
  background: var(--color-text); color: var(--color-bg);
  transition: background 0.4s var(--ease-out);
}
.nav__cta:hover, .nav__cta:focus-visible { background: var(--color-accent); }
.nav__list [aria-current="page"]:not(.nav__cta)::after { transform: scaleX(1); background: var(--color-accent); }
.menu-btn { display: none; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding: calc(var(--header-h) + clamp(32px, 6vh, 72px)) var(--gutter) clamp(48px, 8vh, 96px);
  display: grid; align-content: start; gap: clamp(28px, 5vh, 56px);
  overflow: hidden;
}
.hero__triangle {
  position: absolute; z-index: -1;
  width: min(78vw, 1100px); right: -14vw; top: 6vh;
  fill: none; stroke: var(--color-rule); stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.hero__triangle path { vector-effect: non-scaling-stroke; }
.hero__meta {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  font-family: var(--font-display); font-size: var(--text-label); font-weight: 500;
  letter-spacing: 0.18em; color: var(--color-muted);
  padding-bottom: 16px; border-bottom: 1px solid var(--color-rule);
}
.hero__title {
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.02em;
}
.hero__line { display: block; overflow: hidden; padding-block: 0.06em; }
.hero__seg { display: inline-block; white-space: nowrap; } /* 文節の途中では改行しない */
.hero__line .char { display: inline-block; will-change: transform; }
.hero__line:last-child { padding-left: 0.5em; } /* 2行目を半字ずらして紙面の動きを出す */

.hero__bottom {
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px;
  align-items: start;
}
.hero__lead { grid-column: 1 / span 4; display: grid; gap: 32px; padding-top: 8px; }
.hero__lead p { color: var(--color-muted); }
.hero__jump { display: grid; border-top: 1px solid var(--color-rule); }
.jump {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 0; border-bottom: 1px solid var(--color-rule);
  font-weight: 700;
}
.jump__no { font-family: var(--font-display); font-weight: 800; color: var(--color-accent); }
.jump__arrow { margin-left: auto; transition: transform 0.5s var(--ease-out); }
.jump:hover .jump__arrow, .jump:focus-visible .jump__arrow { transform: translateY(5px); }

.hero__photo { position: relative; }
.hero__photo--a { grid-column: 6 / span 4; }
.hero__photo--b { grid-column: 10 / span 3; margin-top: clamp(48px, 14vh, 160px); }
.hero__photo-inner { overflow: hidden; aspect-ratio: 4 / 5; }
.hero__photo--b .hero__photo-inner { aspect-ratio: 3 / 4; }
.hero__photo img { width: 100%; height: 118%; object-fit: cover; margin-top: -9%; }
.hero__photo figcaption {
  margin-top: 12px;
  font-family: var(--font-display); font-size: var(--text-label); font-weight: 500; letter-spacing: 0.18em;
}
.hero__photo figcaption span { color: var(--color-accent); margin-right: 10px; font-weight: 800; }

.hero__scroll {
  position: absolute; left: var(--gutter); bottom: 28px;
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-display); font-size: 0.68rem; letter-spacing: 0.24em;
}
.hero__scroll i { display: block; width: 64px; height: 1px; background: var(--color-text); overflow: hidden; position: relative; }
.hero__scroll i::after {
  content: ""; position: absolute; inset: 0; background: var(--color-accent);
  animation: scroll-line 2.2s var(--ease-out) infinite;
}
@keyframes scroll-line { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

/* ---------- マーキー ---------- */
.marquee {
  overflow: hidden; white-space: nowrap;
  border-block: 1px solid var(--color-text);
  padding: clamp(14px, 2vw, 24px) 0;
}
.marquee__track { display: inline-flex; animation: marquee 38s linear infinite; }
.marquee__track span {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 5.6rem); line-height: 1; letter-spacing: -0.01em;
  padding-right: 0.4em;
}
.marquee__track b { color: var(--color-accent); font-weight: 400; font-size: 0.5em; vertical-align: middle; margin: 0 0.4em; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- BUSINESS ---------- */
.business__label { margin-bottom: clamp(32px, 5vh, 56px); }
.division {
  position: relative;
  display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; row-gap: 32px;
  align-items: start;
  padding-block: clamp(64px, 12vh, 140px);
  border-top: 1px solid var(--color-text);
}
.division__no {
  grid-column: 1 / span 12;
  font-family: var(--font-display); font-weight: 800;
  font-size: var(--text-num); line-height: 0.8; letter-spacing: -0.04em;
  color: transparent; -webkit-text-stroke: 1px var(--color-text);
  position: absolute; top: clamp(40px, 8vh, 96px); right: 0; z-index: -1;
}
.division__media {
  grid-column: 1 / span 6; grid-row: 1;
  position: relative; overflow: hidden; aspect-ratio: 4 / 3;
}
.division__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.division:hover .division__media img { transform: scale(1.05); }
.curtain {
  position: absolute; inset: 0; z-index: 1; background: var(--color-text);
  transform-origin: top; transform: scaleY(0);
}
.division__body { grid-column: 8 / span 5; grid-row: 1; padding-top: clamp(80px, 18vh, 220px); }
.division--reverse .division__media { grid-column: 7 / span 6; }
.division--reverse .division__body { grid-column: 1 / span 5; }
.division--reverse .division__no { right: auto; left: 0; }
.division__title { font-size: var(--text-h3); font-weight: 700; line-height: 1.4; margin: 16px 0 24px; }
.division__text { color: var(--color-muted); }
.division__text + .division__text { margin-top: 1em; }

.service-list { margin-top: 36px; border-top: 1px solid var(--color-rule); }
.service-list a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 0; border-bottom: 1px solid var(--color-rule);
  font-weight: 500;
}
.service-list span { transition: transform 0.5s var(--ease-out); }
.service-list i { font-style: normal; color: var(--color-accent); opacity: 0; transform: translateX(-12px); transition: opacity 0.4s, transform 0.5s var(--ease-out); }
.service-list a:hover span, .service-list a:focus-visible span { transform: translateX(10px); }
.service-list a:hover i, .service-list a:focus-visible i { opacity: 1; transform: none; }

/* ---------- SERVICES（横スクロール） ---------- */
.services {
  background: var(--color-text); color: var(--color-bg);
  padding: var(--space-section) var(--gutter);
}
.services .label::before { background: var(--color-accent); }
.services__track { display: grid; gap: 64px; }
.services__intro { display: grid; gap: 28px; align-content: center; }
.services__intro p:not(.label) { color: var(--color-bg-muted); max-width: 26em; }
.services__hint { display: none; font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.2em; color: var(--color-bg); }
.svc { display: grid; gap: 14px; align-content: start; }
.svc__img { overflow: hidden; aspect-ratio: 3 / 2; }
.svc__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease-out); filter: grayscale(0.15); }
.svc:hover .svc__img img, .svc:focus-visible .svc__img img { transform: scale(1.06); }
.svc__meta {
  display: flex; justify-content: space-between;
  padding-top: 10px; border-top: 1px solid var(--color-bg-rule);
  font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.16em; color: var(--color-bg-muted);
}
.svc__meta span:first-child { color: var(--color-bg); font-weight: 800; } /* 墨地の小さな文字は朱だとコントラスト不足のため生成り */
.svc__title { font-size: var(--text-h3); font-weight: 700; line-height: 1.3; transition: transform 0.5s var(--ease-out); }
.svc:hover .svc__title { transform: translateX(8px); }
.svc__text { color: var(--color-bg-muted); font-size: 0.92rem; }

/* PC：横スクロール。JS（GSAP）が動かない場合は通常の横スクロール領域になる */
@media (min-width: 900px) {
  .services[data-hscroll] { padding-inline: 0; overflow-x: auto; }
  .services[data-hscroll].is-pinned { overflow: hidden; padding-block: 0; }
  [data-hscroll] .services__track {
    display: flex; gap: 4vw; width: max-content;
    padding-inline: var(--gutter);
    align-items: center;
  }
  [data-hscroll].is-pinned .services__track { min-height: 100vh; padding-top: var(--header-h); }
  [data-hscroll] .services__intro { width: min(34vw, 460px); flex: none; }
  [data-hscroll] .services__hint { display: block; }
  [data-hscroll] .svc, [data-hscroll] .step { width: min(30vw, 420px); flex: none; }
  [data-hscroll] .svc:nth-of-type(even), [data-hscroll] .step:nth-of-type(even) { margin-top: 14vh; } /* 互い違いで紙面にリズムを */
}

/* ---------- REASONS ---------- */
.reason-group { padding-top: clamp(40px, 6vh, 64px); border-top: 1px solid var(--color-text); }
.reason-group + .reason-group, .split + .reason-group { margin-top: clamp(72px, 12vh, 140px); }
.reason-group__title { display: flex; align-items: baseline; gap: 16px; font-size: 1.1rem; font-weight: 700; }
.reason-group__title span { font-family: var(--font-display); font-weight: 800; color: var(--color-accent); }
.reason-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 40px; }
.reason { padding: 0 clamp(16px, 2.4vw, 40px); border-left: 1px solid var(--color-rule); }
.reason:first-child { padding-left: 0; border-left: 0; }
.reason__no {
  display: block;
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(5rem, 10vw, 10rem); line-height: 0.9; letter-spacing: -0.04em;
  color: transparent; -webkit-text-stroke: 1px var(--color-text);
  transition: color 0.6s var(--ease-out);
}
.reason:hover .reason__no { color: var(--color-accent); -webkit-text-stroke-color: var(--color-accent); }
.reason h4 { font-size: 1.15rem; font-weight: 700; line-height: 1.6; margin: 24px 0 12px; }
.reason p { color: var(--color-muted); font-size: 0.95rem; }

/* ---------- COMPANY ---------- */
.company { border-top: 1px solid var(--color-text); }
.figures { display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--color-rule); }
.figure { display: grid; gap: 8px; padding: 32px clamp(12px, 2vw, 32px); border-left: 1px solid var(--color-rule); transition: background 0.5s var(--ease-out); }
.figure:first-child { border-left: 0; padding-left: 0; }
.figure__label { font-size: 0.85rem; color: var(--color-muted); }
.figure__num { font-family: var(--font-display); font-weight: 800; font-size: clamp(2.8rem, 6vw, 6rem); line-height: 1; letter-spacing: -0.03em; }
.figure__num small { font-family: var(--font-text); font-size: 0.9rem; font-weight: 500; letter-spacing: 0.04em; margin-inline: 4px; }
.figure:hover .figure__num { color: var(--color-accent); }

.company__table { margin-top: clamp(56px, 9vh, 96px); max-width: 960px; }
.company__table div { display: grid; grid-template-columns: 9em 1fr; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--color-rule); }
.company__table dt { font-weight: 700; }

/* ---------- CONTACT ---------- */
.contact { position: relative; padding: var(--space-section) var(--gutter); background: var(--color-text); color: var(--color-bg); overflow: hidden; }
.contact .marquee { border-color: var(--color-bg-rule); }
.contact__big { margin: 0 calc(var(--gutter) * -1) clamp(56px, 10vh, 120px); }
.marquee--contact .marquee__track span { font-size: clamp(3.4rem, 10vw, 10rem); color: transparent; -webkit-text-stroke: 1px var(--color-bg); }
.marquee__track--slow { animation-duration: 46s; }
.contact__inner { display: grid; gap: 24px; }
.contact__lead { color: var(--color-bg-muted); }
.contact__list { margin-top: 32px; border-top: 1px solid var(--color-bg-rule); }
.contact__row {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; grid-template-columns: 7em 1fr auto; align-items: center; gap: 24px;
  padding: clamp(20px, 3.4vh, 36px) 0; border-bottom: 1px solid var(--color-bg-rule);
  transition: padding 0s;
}
.contact__row::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--color-accent);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform 0.6s var(--ease-out);
}
.contact__row:hover::before, .contact__row:focus-visible::before { transform: scaleY(1); }
.contact__kind { font-family: var(--font-display); font-weight: 500; font-size: var(--text-label); letter-spacing: 0.2em; padding-left: 12px; }
.contact__value { font-size: clamp(1.4rem, 3.4vw, 3rem); font-weight: 700; letter-spacing: 0.02em; transition: transform 0.6s var(--ease-out); }
.contact__row:hover .contact__value { transform: translateX(12px); }
.contact__row i { font-style: normal; font-size: 1.6rem; padding-right: 12px; transition: transform 0.6s var(--ease-out); }
.contact__row:hover i { transform: translateX(6px); }

/* ---------- FOOTER ---------- */
.footer { padding: clamp(72px, 12vh, 140px) var(--gutter) 28px; overflow: hidden; }
.footer__grid { display: grid; grid-template-columns: 2fr 4fr 3fr 3fr; gap: 40px; align-items: start; }
.footer__contact { display: grid; gap: 8px; justify-items: start; font-size: 0.9rem; }
.footer__contact .label { margin-bottom: 4px; }
.footer__brand img { width: 120px; }
.footer__nap { font-size: 0.9rem; line-height: 2; }
.footer__nav { display: grid; gap: 8px; justify-items: start; font-size: 0.9rem; }
.footer__giant {
  margin-top: clamp(56px, 10vh, 120px);
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(3.4rem, 13.6vw, 15rem); line-height: 0.85; letter-spacing: -0.05em;
  white-space: nowrap;
}
.footer__copy {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--color-rule);
  font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.12em;
}

/* ============================================================
   下層ページの部品
   ============================================================ */

/* ページ冒頭 */
.page-hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + clamp(48px, 10vh, 120px)) var(--gutter) clamp(56px, 9vh, 104px);
  display: grid; gap: 28px;
}
.page-hero .hero__triangle { width: min(56vw, 760px); right: -10vw; top: 4vh; }
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 6px 12px;
  font-size: 0.8rem; color: var(--color-muted);
}
.breadcrumb li + li::before { content: "/"; margin-right: 12px; }
.breadcrumb a { position: relative; }
.page-hero__title {
  font-size: clamp(1.75rem, 3.6vw, 3.4rem);
  font-weight: 700; line-height: 1.16; letter-spacing: 0.02em;
}
.page-hero__title .hero__line:last-child { padding-left: 0; }
.page-hero__lead { max-width: 40em; color: var(--color-muted); }
.page-hero__actions { display: flex; flex-wrap: wrap; gap: 16px; }
.page-hero__actions .btn { margin-top: 0; }
.btn--solid { background: var(--color-text); color: var(--color-bg); }
.btn--solid::before { background: var(--color-accent); }

/* 冒頭の横長写真 */
.wide-media { position: relative; overflow: hidden; aspect-ratio: 21 / 9; margin-inline: var(--gutter); }
.wide-media img { width: 100%; height: 120%; object-fit: cover; margin-top: -10%; }

/* 会社概要：左に写真、右にあいさつ */
.profile {
  display: grid;
  grid-template-columns: minmax(160px, 240px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  border-top: 1px solid var(--color-text);
  padding-top: clamp(40px, 6vh, 64px);
}
.profile__photo {
  margin: 0; position: relative; overflow: hidden;
}
.profile__photo img { width: 100%; height: auto; object-fit: contain; display: block; }
.profile__body { display: grid; gap: 20px; align-content: start; }
.profile__body .prose { max-width: none; }
.profile + .split { margin-top: clamp(96px, 14vh, 160px); }

/* 連絡先の帯（建築ページ冒頭） */
.info-strip {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--color-text);
  margin: clamp(40px, 6vh, 72px) var(--gutter) 0;
}
.info-strip > * {
  display: grid; gap: 4px; padding: 20px clamp(12px, 2vw, 32px);
  border-left: 1px solid var(--color-rule);
}
.info-strip > *:first-child { border-left: 0; padding-left: 0; }
.info-strip__kind { font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.2em; color: var(--color-muted); }
.info-strip__value { font-size: clamp(1.1rem, 1.8vw, 1.6rem); font-weight: 700; }
a.info-strip__item:hover .info-strip__value { color: var(--color-accent); }

/* 3つのポイント（業務サポート冒頭） */
.points { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--color-text); }
.point { padding: 32px clamp(16px, 2.4vw, 40px) 0; border-left: 1px solid var(--color-rule); }
.point:first-child { border-left: 0; padding-left: 0; }
.point__no { font-family: var(--font-display); font-weight: 800; color: var(--color-accent); font-size: 0.9rem; letter-spacing: 0.1em; }
.point h2, .point h3 { font-size: clamp(1.15rem, 1.6vw, 1.45rem); font-weight: 700; line-height: 1.6; margin: 16px 0 12px; }
.point p { color: var(--color-muted); font-size: 0.95rem; }

/* 事業ブロックの下層版（余白を詰める） */
.division--compact .division__body { padding-top: clamp(96px, 14vh, 150px); } /* 背景の番号と本文が重ならない高さ */
.division--compact .division__no { font-size: clamp(4.5rem, 8vw, 8rem); }
.division__link { margin-top: 32px; }

/* 左に見出し・右に本文の2段 */
.split { display: grid; grid-template-columns: 4fr 8fr; gap: 24px clamp(24px, 4vw, 64px); border-top: 1px solid var(--color-text); padding-top: clamp(40px, 6vh, 64px); }
.split + .split { margin-top: clamp(96px, 14vh, 160px); }
.split__head { display: grid; gap: 20px; align-content: start; }
.split__head .section-title { font-size: clamp(1.35rem, 2.1vw, 1.9rem); }
.prose { display: grid; gap: 1.4em; max-width: 44em; }
.prose p { color: var(--color-text); }
.prose__sign { justify-self: end; font-weight: 700; margin-top: 0.6em; }
.checks { display: grid; gap: 0; margin-top: 8px; border-top: 1px solid var(--color-rule); }
.checks li { display: flex; gap: 16px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--color-rule); font-weight: 500; }
.checks li::before { content: ""; width: 9px; height: 8px; flex: none; background: var(--color-accent); clip-path: polygon(50% 0, 100% 100%, 0 100%); transform: translateY(-1px); }
.split .company__table { margin-top: 0; }
.company__table dd { white-space: pre-line; }

/* 施工事例 */
.case { display: grid; grid-template-columns: 5fr 7fr; gap: 24px clamp(24px, 4vw, 64px); align-items: end; }
.case__media { position: relative; overflow: hidden; aspect-ratio: 1; }
.case__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.case:hover .case__media img { transform: scale(1.04); }
.case__title { font-size: var(--text-h3); font-weight: 700; line-height: 1.4; margin: 16px 0 12px; }
.case__tags { color: var(--color-muted); }

/* 墨地の格子（建築の4サービス） */
.services--grid .services__track { grid-template-columns: repeat(2, 1fr); gap: clamp(48px, 8vh, 96px) clamp(24px, 4vw, 64px); }
.services--grid .services__intro { grid-column: 1 / -1; }
.services__lead { max-width: 36em; color: var(--color-bg-muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { font-size: 0.78rem; padding: 4px 12px; border: 1px solid var(--color-bg-rule); }

/* 数字で見せる理由 */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--color-text); }
.stat { padding: 32px clamp(16px, 2.4vw, 40px) 0; border-left: 1px solid var(--color-rule); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat .stat__num { color: var(--color-text); display: flex; align-items: baseline; gap: 6px; font-family: var(--font-display); font-weight: 800; font-size: clamp(4.4rem, 9vw, 9rem); line-height: 0.9; letter-spacing: -0.04em; }
.stat__num small { font-family: var(--font-text); font-size: 1.1rem; font-weight: 700; letter-spacing: 0.04em; }
.stat__num .stat__pre { margin-right: 4px; }
.stat:hover .stat__num { color: var(--color-accent); }
.stat__label { display: block; margin-top: 20px; font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.14em; color: var(--color-muted); }
.stat h3 { font-size: 1.15rem; font-weight: 700; line-height: 1.6; margin: 10px 0 12px; }
.stat p { color: var(--color-muted); font-size: 0.95rem; }

/* 施工の流れ（墨地・PCは横スクロール） */
.step { display: grid; gap: 14px; align-content: start; padding-top: 20px; border-top: 1px solid var(--color-bg-rule); }
.step__no { font-family: var(--font-display); font-weight: 800; font-size: clamp(3.6rem, 6vw, 6rem); line-height: 1; letter-spacing: -0.03em; color: transparent; -webkit-text-stroke: 1px var(--color-bg); transition: color 0.5s var(--ease-out); }
.step:hover .step__no { color: var(--color-bg); }
.step h3 { font-size: var(--text-h3); font-weight: 700; line-height: 1.3; }
.step p { color: var(--color-bg-muted); font-size: 0.95rem; }
.step .step__time { display: flex; justify-content: space-between; gap: 16px; padding-top: 12px; border-top: 1px solid var(--color-bg-rule); font-size: 0.85rem; }
.step__time span:first-child { color: var(--color-bg-muted); }

/* お問い合わせフォーム */
.form-wrap { display: grid; grid-template-columns: 7fr 4fr; gap: 48px clamp(32px, 6vw, 96px); align-items: start; }
.form { display: grid; gap: 28px; }
.field { display: grid; gap: 10px; }
.field label { font-weight: 700; display: flex; align-items: center; gap: 10px; }
.field__req { font-size: 0.7rem; font-weight: 500; padding: 2px 8px; background: var(--color-text); color: var(--color-bg); letter-spacing: 0.1em; }
.field__opt { font-size: 0.7rem; font-weight: 500; padding: 2px 8px; border: 1px solid var(--color-rule); letter-spacing: 0.1em; color: var(--color-muted); }
.field input, .field textarea {
  width: 100%; font: inherit; color: inherit;
  padding: 16px 0; background: transparent;
  border: 0; border-bottom: 1px solid var(--color-text); border-radius: 0;
  transition: border-color 0.3s;
}
.field textarea { min-height: 200px; resize: vertical; border: 1px solid var(--color-text); padding: 16px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--color-accent); box-shadow: inset 0 -1px 0 var(--color-accent); }
.form .btn { justify-self: start; cursor: pointer; background: var(--color-text); color: var(--color-bg); font: inherit; font-weight: 700; }
.form .btn::before { background: var(--color-accent); }
.form__note { font-size: 0.85rem; color: var(--color-muted); }
.form__done { padding: 24px; border: 1px solid var(--color-text); font-weight: 700; }
.form__done[hidden] { display: none; }
.aside { display: grid; gap: 0; border-top: 1px solid var(--color-text); }
.aside > div { padding: 20px 0; border-bottom: 1px solid var(--color-rule); display: grid; gap: 6px; }
.aside dt { font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.2em; color: var(--color-muted); }
.aside dd { font-weight: 700; }

/* スマホ下部の固定ボタン */
.sp-cta { display: none; }

/* ---------- タブレット・スマホ ---------- */
@media (max-width: 1024px) {
  .hero__lead { grid-column: 1 / -1; margin-bottom: 40px; } /* スマホ・タブレットは説明と事業リンクを写真より先に */
  .hero__photo--a { grid-column: 1 / span 7; }
  .hero__photo--b { grid-column: 8 / span 5; }
  .division__no { position: static; grid-row: 1; z-index: 0; font-size: clamp(5rem, 22vw, 10rem); }
  .division__media, .division--reverse .division__media { grid-column: 1 / -1; grid-row: 2; }
  .division__body, .division--reverse .division__body { grid-column: 1 / -1; grid-row: 3; padding-top: 0; }
  .reason-list { grid-template-columns: 1fr; gap: 48px; }
  .reason { padding: 0; border-left: 0; }
  .figures { grid-template-columns: repeat(2, 1fr); }
  .figure:nth-child(3) { border-left: 0; padding-left: 0; }
  .figure:nth-child(n + 3) { border-top: 1px solid var(--color-rule); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }
  .header__logo { position: relative; z-index: 2; }
  .header__logo img { width: 76px; }
  .menu-btn {
    display: inline-flex; align-items: center; gap: 12px;
    background: none; border: 0; padding: 8px 0; color: var(--color-text);
    font-family: var(--font-display); font-size: var(--text-label); letter-spacing: 0.2em; cursor: pointer;
    position: relative; z-index: 2;
  }
  .menu-btn__lines { width: 28px; height: 8px; position: relative; }
  .menu-btn__lines::before, .menu-btn__lines::after {
    content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: currentColor;
    transition: transform 0.5s var(--ease-out);
  }
  .menu-btn__lines::before { top: 0; }
  .menu-btn__lines::after { bottom: 0; }
  .menu-btn[aria-expanded="true"] .menu-btn__lines::before { transform: translateY(3.25px) rotate(20deg); }
  .menu-btn[aria-expanded="true"] .menu-btn__lines::after { transform: translateY(-3.25px) rotate(-20deg); }

  .nav {
    position: fixed; inset: 0; z-index: 1;
    background: var(--color-bg);
    padding: calc(var(--header-h) + 40px) var(--gutter) 40px;
    transform: translateY(-100%);
    transition: transform 0.7s var(--ease-out), visibility 0s 0.7s;
    visibility: hidden;
  }
  .nav.is-open { transform: none; visibility: visible; transition: transform 0.7s var(--ease-out); }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; font-size: 1.5rem; font-weight: 700; }
  .nav__list li { border-bottom: 1px solid var(--color-rule); }
  .nav__list a { display: block; padding: 20px 0; }
  .nav__list .link-line::after { display: none; }
  .nav__cta { margin-top: 32px; text-align: center; padding: 20px; font-size: 1.1rem; }
  .nav__list li:last-child { border-bottom: 0; }
}

@media (max-width: 640px) {
  .hero { min-height: auto; padding-bottom: 96px; }
  .hero__title { font-size: clamp(1.7rem, 8vw, 2.35rem); }
  .section-title { font-size: clamp(1.45rem, 6.8vw, 2.05rem); }
  .profile { grid-template-columns: 1fr; gap: 24px; }
  .profile__photo { max-width: 240px; }
  .hero__line:last-child { padding-left: 0; }
  .hero__meta-index { display: none; }
  .hero__triangle { width: 120vw; right: -40vw; top: 18vh; }
  .hero__bottom { column-gap: 12px; }
  .hero__photo--b { margin-top: 64px; }
  .figures { grid-template-columns: 1fr 1fr; }
  .company__table div { grid-template-columns: 1fr; gap: 4px; }
  .contact__row { grid-template-columns: 1fr auto; gap: 4px 16px; }
  .contact__kind { grid-column: 1 / -1; padding-left: 0; }
  .contact__value { padding-left: 0; }
  .contact__row i { padding-right: 0; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__copy { flex-direction: column; }
}

/* 下層ページの部品：タブレット・スマホ */
@media (max-width: 1024px) {
  .split, .case, .form-wrap { grid-template-columns: 1fr; }
  .case__media { aspect-ratio: 4 / 3; }
  .wide-media { aspect-ratio: 16 / 9; }
}

@media (max-width: 860px) {
  .points, .stats { grid-template-columns: 1fr; }
  .point, .stat { border-left: 0; padding-left: 0; padding-right: 0; }
  .point + .point, .stat + .stat { margin-top: 40px; border-top: 1px solid var(--color-rule); }
  .services--grid .services__track { grid-template-columns: 1fr; }
  .info-strip { grid-template-columns: 1fr; }
  .info-strip > * { border-left: 0; padding-left: 0; }
  .info-strip > * + * { border-top: 1px solid var(--color-rule); }

  /* 電話・LINE・フォームへすぐ行ける固定バー（少しスクロールしてから出す） */
  .sp-cta {
    position: fixed; inset: auto 0 0; z-index: 90;
    display: grid; grid-template-columns: repeat(3, 1fr);
    background: var(--color-text);
    padding-bottom: env(safe-area-inset-bottom);
    transform: translateY(100%);
    transition: transform 0.5s var(--ease-out);
  }
  .sp-cta.is-visible { transform: none; }
  .sp-cta a {
    display: grid; place-items: center; gap: 2px;
    padding: 10px 4px; color: var(--color-bg); font-size: 0.8rem; font-weight: 700;
    border-left: 1px solid var(--color-bg-rule);
  }
  .sp-cta a:first-child { border-left: 0; }
  .sp-cta a span { font-family: var(--font-display); font-size: 0.62rem; font-weight: 500; letter-spacing: 0.2em; color: var(--color-bg-muted); }
  .sp-cta a:last-child { background: var(--color-accent); }
  .sp-cta a:last-child span { color: var(--color-bg); }
  .footer { padding-bottom: calc(28px + 64px); }
}

/* 動きを減らす設定 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation: none !important; }
  .js .loader { display: none; }
}