/* ==========================================================================
   株式会社K2C コーポレートサイト — style.css
   配色・書体・余白はすべて :root のトークンから派生させています。
   ========================================================================== */

:root {
  /* 色 */
  --ink: #070a12;          /* 地：深い藍黒 */
  --ink-2: #0c1019;
  --ink-3: #141a29;
  --paper: #f1ebdf;        /* 文字：生成り */
  --paper-2: #cbc5b8;
  --mist: #8a8fa0;         /* 補助文字：青みのグレー */
  --ember: #e2b36a;        /* 差し色：琥珀（ヒトの熱） */
  --ember-2: #f3d49c;
  --ember-deep: #a9742f;
  --line: rgba(241, 235, 223, 0.14);
  --line-strong: rgba(241, 235, 223, 0.34);

  /* 書体 */
  --font-jp-display: "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --font-en-display: "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-mono: "DM Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  /* 寸法 */
  --gutter: clamp(20px, 5vw, 72px);
  --section: clamp(104px, 14vw, 208px);
  --measure: 38em;

  /* 型スケール */
  --t-hero: clamp(3.1rem, 9.4vw, 9.6rem);
  --t-xl: clamp(2rem, 5.2vw, 4.8rem);
  --t-l: clamp(1.55rem, 3.3vw, 2.9rem);
  --t-m: clamp(1.2rem, 1.9vw, 1.55rem);
  --t-body: clamp(0.94rem, 1.02vw, 1.04rem);
  --t-label: 0.72rem;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.83, 0, 0.17, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  background: var(--ink);
  color: var(--paper);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: var(--t-body);
  line-height: 2;
  letter-spacing: 0.02em;
  line-break: strict;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
img, svg, canvas { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--ember); outline-offset: 4px; }

::selection { background: var(--ember); color: var(--ink); }

.container {
  width: min(1320px, 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 200;
  padding: 10px 14px; background: var(--ember); color: var(--ink);
  transform: translateY(-200%); transition: transform 0.2s;
}
.skip-link:focus { transform: none; }

/* ラベル類 ---------------------------------------------------------------- */
.eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember);
}
.eyebrow::before {
  content: ""; width: 34px; height: 1px; background: var(--ember);
  transform-origin: left center;
}
.eyebrow .jp {
  font-family: var(--font-body); letter-spacing: 0.2em; color: var(--mist);
  font-weight: 400;
}

.section-head {
  display: grid; gap: 22px;
  margin-bottom: clamp(56px, 8vw, 112px);
}
.section-title {
  font-family: var(--font-jp-display);
  font-weight: 700;
  font-size: var(--t-xl);
  line-height: 1.32;
  letter-spacing: 0.02em;
}
.section-lead {
  max-width: var(--measure);
  color: var(--paper-2);
}
.en-italic {
  font-family: var(--font-en-display);
  font-style: italic; font-weight: 300;
  letter-spacing: 0.02em;
}

.reveal-mask { overflow: hidden; }
.split-line { overflow: hidden; display: block; }
.split-line > div, .split-line > span { display: inline-block; }

/* ローダー ------------------------------------------------------------------ */
.loader {
  position: fixed; inset: 0; z-index: 120;
  background: var(--ink);
  display: grid; place-items: center;
  color: var(--paper);
}
.loader__inner { text-align: center; display: grid; gap: 18px; justify-items: center; }
.loader__mark {
  font-family: var(--font-en-display); font-weight: 400;
  font-size: 0.95rem; letter-spacing: 0.5em; text-indent: 0.5em; color: var(--mist);
}
.loader__count {
  font-family: var(--font-en-display); font-weight: 300;
  font-size: clamp(4rem, 12vw, 9rem); line-height: 1;
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.loader__count small { font-size: 0.35em; color: var(--ember); margin-left: 0.15em; }
.loader__line { width: min(280px, 50vw); height: 1px; background: var(--line); overflow: hidden; }
.loader__line i { display: block; height: 100%; width: 100%; background: var(--ember); transform: scaleX(0); transform-origin: left; }
.loader__tag {
  font-family: var(--font-jp-display); font-size: 1.05rem; letter-spacing: 0.3em;
  color: var(--paper-2); opacity: 0;
}

/* カーソル ------------------------------------------------------------------ */
.cursor, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 130; pointer-events: none;
  opacity: 0;
  border-radius: 50%; will-change: transform;
  display: none;
}
.cursor { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: var(--ember); }
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px;
  border: 1px solid rgba(226, 179, 106, 0.7);
  transition: width 0.35s var(--ease-out), height 0.35s var(--ease-out), margin 0.35s var(--ease-out), background-color 0.35s, border-color 0.35s;
  display: none; place-items: center;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; color: var(--ink);
}
.cursor-ring span { opacity: 0; transition: opacity 0.2s; text-indent: 0.2em; }
.cursor-ring.is-link {
  width: 72px; height: 72px; margin: -36px 0 0 -36px;
  background: var(--ember); border-color: var(--ember);
}
.cursor-ring.is-link span { opacity: 1; }
.cursor-ring.is-touch { width: 96px; height: 96px; margin: -48px 0 0 -48px; border-color: var(--ember); }
@media (pointer: fine) {
  .cursor, .cursor-ring { display: grid; }
}

/* WebGL キャンバスと質感 ------------------------------------------------------ */
.gl {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
}
.gl-vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 40%, transparent 40%, rgba(7, 10, 18, 0.7) 100%),
    linear-gradient(to bottom, rgba(7, 10, 18, 0.55), transparent 22%, transparent 78%, rgba(7, 10, 18, 0.7));
}
.grain {
  position: fixed; inset: -100px; z-index: 2; pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation: grain 0.9s steps(6) infinite;
}
@keyframes grain {
  0% { transform: translate(0, 0); }
  20% { transform: translate(-30px, 20px); }
  40% { transform: translate(40px, -10px); }
  60% { transform: translate(-20px, -40px); }
  80% { transform: translate(30px, 30px); }
  100% { transform: translate(0, 0); }
}

#smooth-wrapper { position: relative; z-index: 3; }
#smooth-content { position: relative; }

/* ナビゲーション -------------------------------------------------------------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gutter);
  opacity: 0; transform: translateY(-8px);
}
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(to bottom, rgba(7, 10, 18, 0.9), rgba(7, 10, 18, 0));
  opacity: 0; transition: opacity 0.5s;
}
.nav.is-scrolled::before { opacity: 1; }
.nav__logo {
  font-family: var(--font-en-display); font-weight: 400;
  font-size: 1.5rem; letter-spacing: 0.28em; line-height: 1;
  display: flex; align-items: baseline; gap: 14px;
}
.nav__logo small {
  font-family: var(--font-body); font-size: 0.66rem; letter-spacing: 0.2em; color: var(--mist); font-weight: 400;
}
.nav__links { display: flex; gap: 34px; align-items: center; }
.nav__links a {
  font-size: 0.78rem; letter-spacing: 0.16em; font-weight: 400; color: var(--paper-2);
  position: relative; padding: 4px 0;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--ember); transform: scaleX(0); transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__links a small { font-family: var(--font-mono); font-size: 0.6rem; color: var(--mist); margin-left: 6px; letter-spacing: 0.1em; }
.nav__cta {
  margin-left: 6px; padding: 10px 20px; border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: 0.76rem; letter-spacing: 0.16em; font-weight: 400;
  transition: background-color 0.35s, color 0.35s, border-color 0.35s;
}
.nav__cta:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.nav__cta::after { display: none; }
.nav__clock {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.18em; color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.nav__burger {
  display: none; width: 44px; height: 44px; position: relative; z-index: 2;
}
.nav__burger i {
  position: absolute; left: 10px; right: 10px; height: 1px; background: var(--paper);
  transition: transform 0.45s var(--ease-out), opacity 0.3s;
}
.nav__burger i:nth-child(1) { top: 16px; }
.nav__burger i:nth-child(2) { top: 22px; }
.nav__burger i:nth-child(3) { top: 28px; }
.nav.is-open .nav__burger i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__burger i:nth-child(2) { opacity: 0; }
.nav.is-open .nav__burger i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: 55; background: var(--ink-2);
  display: grid; align-content: center; padding: 0 var(--gutter);
  clip-path: inset(0 0 100% 0); visibility: hidden;
}
.menu__list { display: grid; gap: 6px; }
.menu__list a {
  font-family: var(--font-jp-display); font-size: clamp(2rem, 9vw, 3.4rem); line-height: 1.5;
  display: flex; align-items: baseline; gap: 18px;
}
.menu__list a small { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--ember); }
.menu__foot { margin-top: 40px; color: var(--mist); font-size: 0.8rem; line-height: 1.9; }

/* ヒーロー -------------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: grid; align-content: end;
  padding: calc(var(--gutter) * 2) var(--gutter) clamp(48px, 7vw, 88px);
}
.hero__meta {
  position: absolute; top: clamp(88px, 11vh, 120px); left: var(--gutter); z-index: 2;
  display: grid; gap: 6px;
  font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--mist);
}
.hero__meta b { color: var(--ember); font-weight: 400; }
.hero__side {
  position: absolute; right: var(--gutter); top: 50%;
  transform: translateY(-50%) rotate(90deg); transform-origin: right center;
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.34em; color: var(--mist);
  white-space: nowrap;
}
.hero__title {
  font-family: var(--font-jp-display); font-weight: 700;
  font-size: var(--t-hero); line-height: 1.12; letter-spacing: 0.02em;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.hero__title .pt { color: var(--ember); }
.hero__bottom {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 32px;
}
.hero__lead { max-width: 34em; color: var(--paper-2); }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 15px 26px; border-radius: 999px; border: 1px solid var(--line-strong);
  font-size: 0.82rem; letter-spacing: 0.14em; font-weight: 400;
  position: relative; overflow: hidden; isolation: isolate;
  transition: color 0.4s, border-color 0.4s;
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--ember);
  transform: translateY(101%); transition: transform 0.5s var(--ease-out);
}
.btn:hover { color: var(--ink); border-color: var(--ember); }
.btn:hover::before { transform: translateY(0); }
.btn--solid { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn__arrow { width: 22px; height: 1px; background: currentColor; position: relative; transition: width 0.4s var(--ease-out); }
.btn__arrow::after {
  content: ""; position: absolute; right: 0; top: -3px; width: 6px; height: 6px;
  border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg);
}
.btn:hover .btn__arrow { width: 34px; }
.hero__scroll {
  display: grid; justify-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.3em; color: var(--mist);
}
.hero__scroll i { width: 1px; height: 64px; background: var(--line-strong); overflow: hidden; position: relative; }
.hero__scroll i::after {
  content: ""; position: absolute; inset: 0; background: var(--ember);
  animation: scrollLine 2.2s var(--ease-in-out) infinite;
}
@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  50% { transform: translateY(0); }
  100% { transform: translateY(100%); }
}
.hero__hint {
  margin-top: 28px;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.24em; color: var(--mist);
  display: none;
}
@media (pointer: fine) and (min-width: 900px) { .hero__hint { display: block; } }

/* 想い -------------------------------------------------------------------------- */
.philosophy { padding: var(--section) 0; }
.ph-text {
  font-family: var(--font-jp-display); font-weight: 500;
  font-size: var(--t-l); line-height: 1.9; letter-spacing: 0.04em;
  display: grid; gap: 0.2em;
  max-width: 24em;
}
.ph-text .ph-gap { height: 1.2em; }
.ph-text .char { opacity: 0.13; }
.ph-text .em { color: var(--ember); }
.philosophy__after {
  margin-top: clamp(64px, 9vw, 120px);
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px;
}
.philosophy__after p { max-width: var(--measure); color: var(--paper-2); }
.philosophy__after .en-italic { font-size: clamp(1.4rem, 2.6vw, 2.2rem); color: var(--paper); line-height: 1.3; }

/* 課題 -------------------------------------------------------------------------- */
.issues { padding: var(--section) 0; }
.issue-list { border-top: 1px solid var(--line); }
.issue {
  display: grid; grid-template-columns: 150px minmax(0, 1fr) 40px;
  gap: 32px; align-items: start;
  padding: clamp(28px, 4vw, 44px) 0; border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-left 0.5s var(--ease-out);
}
.issue::before {
  content: ""; position: absolute; left: calc(var(--gutter) * -1); right: calc(var(--gutter) * -1); top: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(226, 179, 106, 0.08), transparent 60%);
  opacity: 0; transition: opacity 0.5s; pointer-events: none;
}
.issue:hover::before { opacity: 1; }
.issue:hover { padding-left: 14px; }
.issue__key { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; color: var(--mist); padding-top: 0.9em; }
.issue__title {
  font-family: var(--font-jp-display); font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.7rem); line-height: 1.4; letter-spacing: 0.02em;
  transition: color 0.4s;
}
.issue:hover .issue__title { color: var(--ember-2); }
.issue__desc { color: var(--paper-2); max-width: 36em; margin-top: 10px; }
.issue__arrow { padding-top: 1.1em; }
.issue__arrow svg { width: 26px; height: 26px; stroke: var(--paper-2); fill: none; stroke-width: 1; transition: transform 0.5s var(--ease-out), stroke 0.4s; }
.issue:hover .issue__arrow svg { transform: translate(6px, -6px); stroke: var(--ember); }

/* 支援の流れ -------------------------------------------------------------------- */
.approach { padding: var(--section) 0; }
.steps {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0;
  border-top: 1px solid var(--line);
}
.step { padding: clamp(36px, 4vw, 56px) clamp(20px, 3vw, 44px) clamp(36px, 4vw, 56px) 0; border-right: 1px solid var(--line); position: relative; }
.step:last-child { border-right: 0; }
.step + .step { padding-left: clamp(20px, 3vw, 44px); }
.step__no { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; color: var(--ember); }
.step__kanji {
  font-family: var(--font-jp-display); font-weight: 700;
  font-size: clamp(3.6rem, 7vw, 6.4rem); line-height: 1.1; margin: 18px 0 4px;
}
.step__en { font-family: var(--font-en-display); font-style: italic; font-weight: 300; font-size: 1.35rem; color: var(--mist); margin-bottom: 22px; }
.step__desc { color: var(--paper-2); font-size: 0.95em; }
.step__line { position: absolute; left: 0; right: 0; top: -1px; height: 1px; background: var(--ember); transform: scaleX(0); transform-origin: left; }

/* 事業内容（横スクロール） ----------------------------------------------------- */
.services { padding-top: var(--section); }
.services__pin { position: relative; overflow: hidden; }
.svc-track {
  display: flex; gap: clamp(20px, 2.4vw, 36px);
  padding: 0 var(--gutter) var(--section);
  width: max-content;
}
.svc-intro {
  width: min(520px, 80vw); flex: none;
  display: grid; align-content: space-between; gap: 40px;
  padding: 10px 0;
}
.svc-intro .section-title { font-size: clamp(1.8rem, 3.6vw, 3.6rem); }
.svc-intro__note { color: var(--mist); font-size: 0.86rem; }
.svc-counter {
  font-family: var(--font-en-display); font-weight: 300; font-size: 3.2rem; line-height: 1;
  display: flex; align-items: baseline; gap: 10px; font-variant-numeric: tabular-nums;
}
.svc-counter small { font-size: 0.4em; color: var(--mist); letter-spacing: 0.1em; }
.svc-progress { height: 1px; background: var(--line); width: min(320px, 60vw); overflow: hidden; }
.svc-progress i { display: block; height: 100%; width: 100%; background: var(--ember); transform: scaleX(0); transform-origin: left; }

.svc-card {
  flex: none; width: min(640px, 82vw);
  min-height: min(72vh, 680px);
  display: grid; align-content: space-between; gap: 40px;
  padding: clamp(28px, 3.2vw, 48px);
  background: rgba(12, 16, 25, 0.62);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  position: relative; overflow: hidden;
  transition: border-color 0.5s;
}
.svc-card::after {
  content: ""; position: absolute; inset: auto -20% -30% auto; width: 60%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(226, 179, 106, 0.18), transparent 60%);
  opacity: 0; transition: opacity 0.6s;
}
.svc-card:hover { border-color: rgba(226, 179, 106, 0.5); }
.svc-card:hover::after { opacity: 1; }
.svc-card__top { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; }
.svc-card__en { font-family: var(--font-en-display); font-style: italic; font-weight: 300; font-size: 1.3rem; color: var(--mist); }
.svc-card__tag { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; color: var(--ember); }
.svc-card__title {
  font-family: var(--font-jp-display); font-weight: 700;
  font-size: clamp(1.8rem, 3.6vw, 3rem); line-height: 1.3; letter-spacing: 0.02em;
}
.svc-card__catch {
  font-family: var(--font-jp-display); font-weight: 500;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem); color: var(--ember-2); margin-top: 16px; letter-spacing: 0.04em;
}
.svc-card__desc { color: var(--paper-2); margin-top: 18px; max-width: 32em; }
.svc-card__meta { display: flex; flex-wrap: wrap; gap: 8px; }
.svc-card__meta li {
  font-size: 0.72rem; letter-spacing: 0.12em; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--paper-2);
}
.svc-card__glyph {
  position: absolute; right: 22px; top: 12px;
  font-family: var(--font-en-display); font-weight: 300; font-size: 8rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px rgba(241, 235, 223, 0.12);
  pointer-events: none;
}

/* 代表 ------------------------------------------------------------------------ */
.founder { padding: var(--section) 0; }
.founder__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 100px); }
.founder__sticky { position: sticky; top: 120px; align-self: start; }
.founder__name {
  font-family: var(--font-jp-display); font-weight: 700;
  font-size: clamp(2.4rem, 5.4vw, 4.6rem); line-height: 1.2; letter-spacing: 0.08em; margin-top: 28px;
}
.founder__name small { display: block; font-family: var(--font-en-display); font-style: italic; font-weight: 300; font-size: 0.42em; letter-spacing: 0.08em; color: var(--mist); margin-top: 10px; }
.founder__role { font-size: 0.78rem; letter-spacing: 0.22em; color: var(--ember); margin-top: 18px; font-weight: 400; }
.founder__statement {
  font-family: var(--font-jp-display); font-weight: 500;
  font-size: clamp(1.3rem, 2.3vw, 1.9rem); line-height: 1.7; letter-spacing: 0.04em;
  margin-top: 40px; max-width: 16em;
}
.founder__message { color: var(--paper-2); margin-top: 26px; max-width: var(--measure); }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { padding: 30px 22px 28px 0; border-right: 1px solid var(--line); }
.stat + .stat { padding-left: 22px; }
.stat:last-child { border-right: 0; }
.stat__num {
  font-family: var(--font-en-display); font-weight: 300;
  font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: -0.01em;
  display: flex; align-items: baseline; gap: 6px; white-space: nowrap;
}
.stat__num .unit { font-family: var(--font-jp-display); font-size: 0.5em; color: var(--ember); }
.stat__label { font-size: 0.76rem; color: var(--mist); margin-top: 12px; line-height: 1.7; letter-spacing: 0.06em; }

.timeline { margin-top: clamp(48px, 6vw, 80px); position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 4px; top: 6px; bottom: 6px; width: 1px; background: var(--line); }
.timeline__bar { position: absolute; left: 4px; top: 6px; width: 1px; height: calc(100% - 12px); background: var(--ember); transform: scaleY(0); transform-origin: top; }
.tl-item { position: relative; padding: 0 0 clamp(30px, 4vw, 48px); }
.tl-item::before {
  content: ""; position: absolute; left: -34px; top: 0.75em; width: 9px; height: 9px; border-radius: 50%;
  background: var(--ink); border: 1px solid var(--ember); box-shadow: 0 0 0 4px var(--ink);
}
.tl-item__label { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; color: var(--ember); text-transform: uppercase; }
.tl-item__title { font-family: var(--font-jp-display); font-weight: 500; font-size: clamp(1.15rem, 1.7vw, 1.45rem); line-height: 1.6; margin-top: 8px; }
.tl-item__desc { color: var(--paper-2); margin-top: 6px; max-width: 36em; font-size: 0.95em; }

/* 会社概要 -------------------------------------------------------------------- */
.company { padding: var(--section) 0; }
.company__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 100px); align-items: start; }
.company__mark {
  font-family: var(--font-en-display); font-weight: 300;
  font-size: clamp(5rem, 12vw, 11rem); line-height: 0.9; letter-spacing: 0.04em;
  color: transparent; -webkit-text-stroke: 1px rgba(241, 235, 223, 0.35);
  margin-top: 20px;
}
.company__mark b { font-weight: 300; color: var(--ember); -webkit-text-stroke: 0; }
.spec { border-top: 1px solid var(--line); }
.spec__row {
  display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 24px;
  padding: 26px 0; border-bottom: 1px solid var(--line); position: relative;
}
.spec__row::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ember); transform: scaleX(0); transform-origin: left; }
.spec__row dt { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; color: var(--mist); text-transform: uppercase; padding-top: 0.6em; }
.spec__row dt span { display: block; font-family: var(--font-body); font-size: 0.8rem; letter-spacing: 0.16em; color: var(--paper-2); margin-top: 4px; }
.spec__row dd { font-size: 1.02rem; line-height: 1.9; }
.spec__row dd ul { display: grid; gap: 2px; }
.spec__row dd ul li::before { content: "— "; color: var(--ember); }
.spec__row dd .addr-en { display: block; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--mist); margin-top: 4px; }

/* お問い合わせ ------------------------------------------------------------------ */
.contact { padding: var(--section) 0; }
.contact__grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(40px, 7vw, 120px); }
.contact__title {
  font-family: var(--font-jp-display); font-weight: 700;
  font-size: clamp(2.2rem, 4.4vw, 4.2rem); line-height: 1.3; letter-spacing: 0.02em;
}
.contact__title .pt { color: var(--ember); }
.contact__lead { color: var(--paper-2); margin-top: 30px; max-width: 30em; }
.contact__info { margin-top: 44px; display: grid; gap: 10px; font-size: 0.86rem; color: var(--paper-2); line-height: 1.9; }
.contact__info b { font-family: var(--font-mono); font-weight: 400; font-size: 0.64rem; letter-spacing: 0.22em; color: var(--ember); display: block; margin-bottom: 2px; }

.contact__mail { display: grid; gap: 26px; align-content: start; padding-top: 6px; }
.contact__mail-label { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: 0.22em; text-transform: uppercase; color: var(--ember); }
.contact__mail-label span { font-family: var(--font-body); font-size: 0.78rem; letter-spacing: 0.16em; color: var(--mist); margin-left: 10px; text-transform: none; }
.mail-link {
  font-family: var(--font-en-display); font-weight: 300;
  font-size: clamp(1.7rem, 3.4vw, 3.3rem); line-height: 1.15; letter-spacing: 0.01em;
  overflow-wrap: anywhere; display: inline-block; position: relative; padding-bottom: 10px; width: fit-content; max-width: 100%;
  transition: color 0.4s;
}
.mail-link::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--line-strong); }
.mail-link::before { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ember); transform: scaleX(0); transform-origin: left; transition: transform 0.6s var(--ease-out); z-index: 1; }
.mail-link:hover { color: var(--ember-2); }
.mail-link:hover::before { transform: scaleX(1); }
.contact__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn.is-copied { border-color: var(--ember); color: var(--ember-2); }
.contact__note { color: var(--paper-2); max-width: 30em; font-size: 0.94em; }
.contact__topics { display: flex; flex-wrap: wrap; gap: 8px; }
.contact__topics li { font-size: 0.72rem; letter-spacing: 0.12em; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--paper-2); }
.footer__mail { display: inline-block; margin-top: 2px; font-family: var(--font-en-display); font-size: 1.15rem; letter-spacing: 0.02em; color: var(--paper); border-bottom: 1px solid var(--line-strong); }
.footer__mail:hover { color: var(--ember); border-color: var(--ember); }

/* フッター ---------------------------------------------------------------------- */
.footer { position: relative; padding: clamp(40px, 5vw, 64px) 0 32px; overflow: hidden; }
.marquee { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 20px 0; white-space: nowrap; }
.marquee__inner { display: flex; width: max-content; will-change: transform; }
.marquee__item {
  font-family: var(--font-en-display); font-style: italic; font-weight: 300;
  font-size: clamp(1.6rem, 3.4vw, 3rem); letter-spacing: 0.02em; padding-right: 3.2rem; color: var(--paper-2);
}
.marquee__item .jp { font-family: var(--font-jp-display); font-style: normal; font-weight: 500; font-size: 0.85em; color: var(--paper); }
.marquee__item .dot { color: var(--ember); }
.footer__big {
  font-family: var(--font-en-display); font-weight: 300;
  font-size: clamp(6rem, 30vw, 34rem); line-height: 0.8; letter-spacing: 0.02em;
  color: transparent; -webkit-text-stroke: 1px rgba(241, 235, 223, 0.18);
  margin: clamp(30px, 5vw, 60px) 0 clamp(30px, 5vw, 60px) -0.04em;
  user-select: none;
}
.footer__bar { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; border-top: 1px solid var(--line); padding-top: 26px; }
.footer__addr { font-size: 0.8rem; color: var(--paper-2); line-height: 1.9; }
.footer__addr b { font-family: var(--font-jp-display); font-weight: 500; font-size: 1rem; display: block; margin-bottom: 4px; color: var(--paper); }
.footer__links { display: flex; gap: 22px; flex-wrap: wrap; font-size: 0.76rem; letter-spacing: 0.14em; color: var(--paper-2); }
.footer__links a:hover { color: var(--ember); }
.footer__copy { grid-column: 1 / -1; font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.18em; color: var(--mist); margin-top: 18px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.totop { display: inline-flex; align-items: center; gap: 10px; }
.totop i { width: 1px; height: 28px; background: var(--ember); display: block; }

/* レスポンシブ ------------------------------------------------------------------ */
@media (max-width: 1100px) {
  .nav__clock { display: none; }
}
@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .hero__bottom { grid-template-columns: 1fr; }
  .hero__scroll { display: none; }
  .hero__side { display: none; }
  .philosophy__after, .founder__grid, .company__grid, .contact__grid { grid-template-columns: 1fr; }
  .founder__sticky { position: static; }
  .issue { grid-template-columns: minmax(0, 1fr) 32px; gap: 16px; }
  .issue__key { grid-column: 1 / -1; padding-top: 0; }
  .issue:hover { padding-left: 0; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 1px solid var(--line); padding-right: 0; }
  .step + .step { padding-left: 0; }
  .step:last-child { border-bottom: 0; }
  .svc-track { flex-direction: column; width: auto; padding-bottom: var(--section); }
  .svc-intro { width: auto; }
  .svc-counter, .svc-progress, .svc-intro__note { display: none; }
  .svc-card__catch { letter-spacing: 0.02em; }
  .svc-card { width: auto; min-height: 0; }
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); padding-left: 0; }
  .stat:last-child { border-bottom: 0; }
  .spec__row { grid-template-columns: 1fr; gap: 8px; }
  .footer__bar { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  :root { --t-hero: clamp(2.6rem, 13.2vw, 4.4rem); }
  .hero { padding-top: 120px; }
  .hero__meta { top: 84px; }
  .svc-card__glyph { font-size: 5rem; }
}

/* モーション低減 ----------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .grain, .hero__scroll i::after { animation: none; }
  .ph-text .char { opacity: 1; }
  .loader { display: none; }
  .nav { opacity: 1; transform: none; }
  * { scroll-behavior: auto !important; }
}

/* JS が付与する状態 -------------------------------------------------------------- */
.spec__row.is-in::after { transform: scaleX(1); transition: transform 1.4s var(--ease-out); }
.step.is-in .step__line { transform: scaleX(1); transition: transform 1.4s var(--ease-out); }
.hero__title { opacity: 0; }
.hero__title.is-ready { opacity: 1; }

/* 横スクロールのピン留めレイアウト（デスクトップのみ） */
@media (min-width: 901px) {
  .services { padding-bottom: 0; }
  .services__pin { height: 100vh; height: 100svh; display: flex; align-items: center; }
  .svc-track { padding-bottom: 0; align-items: stretch; }
  .svc-card { height: min(72vh, 680px); }
}

/* SEO / アクセシビリティ補助 ---------------------------------------------------- */
.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; }
address { font-style: normal; }
.company__summary { color: var(--paper-2); margin-top: 28px; max-width: 30em; font-size: 0.95em; }

/* よくあるご質問 ---------------------------------------------------------------- */
.faq { padding: var(--section) 0; }
.faq__list { border-top: 1px solid var(--line); max-width: 960px; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: clamp(22px, 3vw, 32px) 0;
  font-family: var(--font-jp-display); font-weight: 500; font-size: clamp(1.1rem, 1.8vw, 1.5rem); line-height: 1.6; letter-spacing: 0.02em;
  transition: color 0.4s;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q:hover { color: var(--ember-2); }
.faq__icon { position: relative; flex: none; width: 34px; height: 34px; border: 1px solid var(--line-strong); border-radius: 50%; transition: transform 0.5s var(--ease-out), border-color 0.4s; }
.faq__icon::before, .faq__icon::after { content: ""; position: absolute; left: 50%; top: 50%; background: var(--ember); transform: translate(-50%, -50%); }
.faq__icon::before { width: 12px; height: 1px; }
.faq__icon::after { width: 1px; height: 12px; transition: transform 0.4s; }
.faq__item[open] .faq__icon { transform: rotate(180deg); border-color: var(--ember); }
.faq__item[open] .faq__icon::after { transform: translate(-50%, -50%) scaleY(0); }
.faq__a { padding: 0 60px clamp(24px, 3vw, 36px) 0; color: var(--paper-2); max-width: 40em; }
.faq__a a { color: var(--ember-2); border-bottom: 1px solid currentColor; }