/* IGNITE DESIGN — WHITE IGNITION（v3: 白基調＋黒い章。ユーザー指示 2026-10-08）
   トークンの意図は docs/DESIGN_SYSTEM.md */

:root {
  /* 白基調（既定）。黒い章は .tone-dark で同じ名前の変数を差し替える */
  --c-bg: #fafaf7;
  --c-surface: #f1f0eb;
  --c-text: #0a0a0a;
  --c-muted: #55554f;
  --c-faint: #85857f;
  --c-line: rgba(10, 10, 10, 0.11);
  --c-line-strong: rgba(10, 10, 10, 0.26);
  --c-grid: rgba(10, 10, 10, 0.06);
  --c-header: rgba(250, 250, 247, 0.94);
  --c-nav: rgba(10, 10, 10, 0.72);
  --c-shadow: rgba(10, 10, 10, 0.22);
  --c-error: #c21603;
  --c-accent: #f41c06;
  /* 赤の上の文字は常に墨（白文字だとコントラスト不足） */
  --c-on-accent: #0a0a0a;

  --font: "Manrope", "Noto Sans JP", "Hiragino Sans", sans-serif;
  --fs-h1: clamp(30px, 6vw, 68px);
  --fs-h2: clamp(30px, 3.6vw, 52px);
  --fs-h3: clamp(19px, 1.8vw, 24px);
  --fs-body: 17px;
  --fs-small: 13px;
  --fs-label: 12px;
  --measure: 34em;

  --s-xs: 8px;
  --s-s: 20px;
  --s-m: 40px;
  --s-l: 80px;
  --s-xl: 136px;

  --gutter: 80px;
  --max: 1280px;
  --header-h: 80px;

  --ease: cubic-bezier(0.7, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* 黒い章（TOP の APPROACH・STORY・FINAL、相談帯、フッターなど） */
.tone-dark,
html.header-dark .site-header {
  --c-bg: #050505;
  --c-surface: #0a0a0a;
  --c-text: #f5f5f2;
  --c-muted: #bdbdb8;
  --c-faint: #8a8a85;
  --c-line: rgba(245, 245, 242, 0.12);
  --c-line-strong: rgba(245, 245, 242, 0.28);
  --c-grid: rgba(245, 245, 242, 0.07);
  --c-header: rgba(5, 5, 5, 0.94);
  --c-nav: rgba(245, 245, 242, 0.72);
  --c-shadow: rgba(0, 0, 0, 0.9);
  --c-error: #ff6b57;
  color: var(--c-text);
}
.tone-dark {
  position: relative;
  isolation: isolate;
  background: var(--c-bg);
}

@media (max-width: 1199px) {
  :root {
    --gutter: 44px;
  }
}
@media (max-width: 767px) {
  :root {
    --gutter: 20px;
    --fs-body: 16px;
    --s-l: 56px;
    --s-xl: 96px;
    --header-h: 64px;
  }
}

/* ---------- base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.85;
  letter-spacing: 0.04em;
  font-feature-settings: "palt" 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  word-break: auto-phrase;
}
h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}
h1,
h2,
h3 {
  font-weight: 500;
  line-height: 1.32;
  letter-spacing: 0.02em;
}
a {
  color: inherit;
}
img,
svg {
  display: block;
  max-width: 100%;
}
:focus-visible {
  outline: 2px solid var(--c-text);
  outline-offset: 3px;
}
/* display を指定した要素でも hidden 属性で確実に隠す（送信完了時のフォームなど） */
[hidden] {
  display: none !important;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--c-text);
  color: var(--c-bg);
  font-size: 14px;
}
.skip-link:focus {
  top: 12px;
}
.container {
  width: 100%;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.nobr {
  display: inline-block;
}

/* ---------- type helpers ---------- */
.label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-muted);
  line-height: 1.4;
}
.label__num {
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}
.label__bar {
  width: 24px;
  height: 1px;
  background: var(--c-line-strong);
}
.lead {
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.95;
  max-width: var(--measure);
}
.muted {
  color: var(--c-muted);
}
.small {
  font-size: var(--fs-small);
  line-height: 1.8;
}
.prose p + p {
  margin-top: 1.2em;
}
.prose {
  max-width: var(--measure);
}

/* ---------- buttons / links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 16px 28px;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-decoration: none;
  transition:
    background-color 180ms ease,
    color 180ms ease;
}
button.btn {
  border: 0;
  cursor: pointer;
  font-family: inherit;
}
button.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
button.btn[aria-busy="true"] {
  cursor: wait;
}
.btn__arrow {
  font-family: "Manrope", sans-serif;
  transition: transform 180ms var(--ease-out);
}
.btn:hover .btn__arrow {
  transform: translateX(4px);
}
/* 主ボタン: ホバーで赤から墨（黒い章では白）へ、左から色が流れる */
.btn--primary {
  background:
    linear-gradient(var(--c-text), var(--c-text)) left / 0% 100% no-repeat,
    var(--c-accent);
  color: var(--c-on-accent);
  transition:
    background-size 360ms var(--ease),
    color 200ms ease 80ms;
}
.btn--primary:hover {
  background-size:
    100% 100%,
    auto;
  color: var(--c-bg);
}
.btn--ghost {
  border: 1px solid var(--c-line-strong);
  color: var(--c-text);
}
.btn--ghost:hover {
  border-color: var(--c-text);
}
.link-seam {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
}
.link-seam::before,
.link-seam::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8px;
  height: 1px;
  background: var(--c-line-strong);
}
.link-seam::after {
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease-out);
}
.link-seam:hover::after,
.link-seam:focus-visible::after {
  transform: scaleX(1);
}

/* ---------- header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  background: var(--c-header);
  color: var(--c-text);
  border-bottom: 1px solid transparent;
  transition:
    border-color 200ms ease,
    background-color 400ms ease,
    color 400ms ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--c-line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--s-m);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.16em;
  white-space: nowrap;
}
.brand__mark {
  width: 14px;
  height: 22px;
}
.brand__sub {
  font-weight: 400;
  color: var(--c-muted);
}
.nav {
  display: flex;
  align-items: center;
  gap: var(--s-m);
}
.nav__list {
  display: flex;
  gap: 28px;
}
.nav__list a {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--c-nav);
  transition: color 160ms ease;
}
.nav__list a:hover,
.nav__list a[aria-current="page"] {
  color: var(--c-text);
}
.nav__list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: var(--c-accent);
}
.nav__cta {
  white-space: nowrap;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 13px;
}
.menu-button {
  display: none;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--c-text);
  font: 500 13px/1 var(--font);
  letter-spacing: 0.14em;
  cursor: pointer;
}
.menu-button__lines {
  position: relative;
  width: 22px;
  height: 9px;
}
.menu-button__lines::before,
.menu-button__lines::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  transition: transform 200ms var(--ease-out);
}
.menu-button__lines::before {
  top: 0;
}
.menu-button__lines::after {
  bottom: 0;
}
.menu-button[aria-expanded="true"] .menu-button__lines::before {
  transform: translateY(4px) rotate(20deg);
}
.menu-button[aria-expanded="true"] .menu-button__lines::after {
  transform: translateY(-4px) rotate(-20deg);
}

@media (max-width: 1199px) {
  .menu-button {
    display: inline-flex;
  }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--s-m);
    padding: var(--s-m) var(--gutter) var(--s-l);
    background: var(--c-bg);
    overflow-y: auto;
  }
  .nav.is-open {
    display: flex;
  }
  .nav__list {
    flex-direction: column;
    gap: 0;
  }
  .nav__list a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--c-line);
    font-size: 20px;
    letter-spacing: 0.06em;
    color: var(--c-text);
  }
  .nav__list a[aria-current="page"]::after {
    bottom: -1px;
    right: auto;
    width: 48px;
  }
  .nav__cta {
    justify-content: space-between;
    min-height: 56px;
    font-size: 15px;
  }
  body.menu-open {
    overflow: hidden;
  }
}
@media (max-width: 1199px) and (prefers-reduced-motion: no-preference) {
  .nav.is-open {
    animation: nav-in 220ms var(--ease-out);
  }
}
@keyframes nav-in {
  from {
    opacity: 0;
  }
}
@media (max-width: 479px) {
  .brand__sub {
    display: none;
  }
}

main {
  padding-top: var(--header-h);
}

/* ---------- ignition field (signature motif) ----------
   [data-field] の背面に canvas。JS 無効・canvas 非対応では .field-static が代わりに見える */
[data-field] {
  position: relative;
  isolation: isolate;
}
.field__canvas,
.field-static {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.field-static {
  background: repeating-linear-gradient(
    90deg,
    var(--c-grid) 0 1px,
    transparent 1px 14px
  );
}
.field-static svg {
  width: 100%;
  height: 100%;
}
.field-static__seam {
  stroke: var(--c-accent);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
.field-static__seam--m {
  display: none;
}
[data-field].is-live .field-static {
  display: none;
}

/* ---------- hero ---------- */
.hero {
  min-height: calc(88svh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-block: var(--s-l) var(--s-m);
  overflow: hidden;
}
/* 見出しの背後は線を薄くして可読性を保つ */
.hero .field__canvas,
.hero .field-static {
  -webkit-mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.28) 0%,
    rgba(0, 0, 0, 0.4) 44%,
    #000 66%
  );
  mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.28) 0%,
    rgba(0, 0, 0, 0.4) 44%,
    #000 66%
  );
}
.hero__inner {
  flex: 1;
  display: flex;
  align-items: flex-end;
}
.hero__copy {
  max-width: 62%;
  padding-bottom: var(--s-m);
}
.hero__title {
  margin-top: var(--s-m);
  font-size: min(88px, 5.8vw);
  font-weight: 500;
  line-height: 1.26;
  letter-spacing: 0.01em;
}
.hero__title span {
  display: inline-block;
}
.hero__lead {
  margin-top: var(--s-m);
  max-width: 26em;
  color: var(--c-muted);
}
.hero__actions {
  margin-top: var(--s-m);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 40px;
}
.hero__tag {
  position: absolute;
  display: grid;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.5;
  color: var(--c-muted);
}
.hero__tag strong {
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-text);
}
.hero__tag--a {
  left: 64%;
  top: 14%;
  text-align: right;
  transform: translateX(-100%);
}
.hero__tag--b {
  left: 80%;
  top: 46%;
}
.hero__foot {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
  font-size: var(--fs-small);
  color: var(--c-muted);
}
.hero__foot ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 28px;
}

/* 導入: 切れ目が引かれたあと、見出しが左から現れる（動き許可時のみ。最後は必ず全表示） */
@media (prefers-reduced-motion: no-preference) {
  .hero__title span {
    animation: wipe-in 900ms var(--ease) both;
  }
  .hero__title span:nth-child(1) {
    animation-delay: 380ms;
  }
  .hero__title span:nth-child(2) {
    animation-delay: 520ms;
  }
  .hero .label,
  .hero__lead,
  .hero__actions,
  .hero__tag,
  .hero__foot {
    animation: rise-in 700ms var(--ease-out) both;
  }
  .hero .label {
    animation-delay: 250ms;
  }
  .hero__lead {
    animation-delay: 700ms;
  }
  .hero__actions {
    animation-delay: 800ms;
  }
  .hero__tag,
  .hero__foot {
    animation-delay: 1000ms;
  }
}
@keyframes wipe-in {
  from {
    clip-path: inset(0 100% 0 0);
    transform: translateX(-0.25em);
  }
  to {
    clip-path: inset(0 -0.2em 0 0);
    transform: none;
  }
}
@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}

@media (max-width: 1023px) {
  .hero__copy {
    max-width: none;
  }
  .hero__title {
    font-size: clamp(30px, 8.6vw, 60px);
  }
  .hero__tag--b {
    left: auto;
    right: var(--gutter);
    top: 30%;
    text-align: right;
  }
  .hero__tag--a {
    top: 8%;
    left: 70%;
  }
  .hero__foot {
    display: none;
  }
}
@media (max-width: 767px) {
  .hero {
    padding-block: 0 var(--s-l);
  }
  .hero .field__canvas,
  .hero .field-static {
    -webkit-mask-image: linear-gradient(
      180deg,
      #000 0%,
      #000 34%,
      rgba(0, 0, 0, 0.22) 62%
    );
    mask-image: linear-gradient(
      180deg,
      #000 0%,
      #000 34%,
      rgba(0, 0, 0, 0.22) 62%
    );
  }
  .field-static__seam {
    display: none;
  }
  .field-static__seam--m {
    display: inline;
  }
  .hero__inner {
    padding-top: 38svh;
  }
  .hero__title {
    margin-top: 20px;
  }
  .hero__lead,
  .hero__actions {
    margin-top: 28px;
  }
  .hero__tag--a {
    left: 52%;
    top: 10%;
  }
  .hero__tag--b {
    top: 30%;
  }
}
@media (max-width: 479px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .hero__actions .btn {
    justify-content: space-between;
  }
  .hero__actions .link-seam {
    align-self: flex-start;
  }
}

/* ---------- section scaffolding ---------- */
.section {
  padding-block: var(--s-xl);
}
.section--tight {
  padding-block: var(--s-l);
}
.section--surface {
  background: var(--c-surface);
}
/* 少しだけ色のある面（ABOUT・FAQ ページなど） */
.is-tint {
  background: var(--c-surface);
}
.grid12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
}
.section-head {
  display: grid;
  gap: 20px;
  margin-bottom: var(--s-l);
}
.section-head h2 {
  font-size: var(--fs-h2);
}
.section-cta {
  margin-top: var(--s-l);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 40px;
}
.section-cta p {
  color: var(--c-muted);
  font-size: 15px;
}

/* VALUE — 散らばった言葉が一文へ収束する。
   --p 未設定（JS 無効・Reduced Motion）では、言葉は散らばったまま、一文は表示済み */
.converge {
  position: relative;
  overflow: clip;
  padding-bottom: var(--s-xl);
}
.converge__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: min(88svh, 780px);
  padding-block: var(--s-l);
}
.converge__words li {
  position: absolute;
  left: 50%;
  top: 50%;
  white-space: nowrap;
  font-size: clamp(13px, 1.25vw, 17px);
  letter-spacing: 0.08em;
  color: var(--c-muted);
  transform: translate(-50%, -50%)
    translate(
      calc(var(--x) * var(--spread-x, 1vw) * (1 - var(--p, 0))),
      calc(var(--y) * 1vh * (1 - var(--p, 0)))
    );
  opacity: calc(1 - var(--p, 0) * 1.7);
}
.converge__words li::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 10px;
  vertical-align: middle;
  border: 1px solid var(--c-line-strong);
}
@media (max-width: 767px) {
  .converge__words {
    --spread-x: 0.8vw;
  }
}
.converge__center {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 32px;
  padding-inline: var(--gutter);
  text-align: center;
  opacity: clamp(0, calc((var(--p, 1) - 0.42) * 3.2), 1);
}
.value__statement {
  font-size: clamp(30px, 5vw, 72px);
  line-height: 1.4;
}
.converge__seam {
  display: block;
  width: min(520px, 70vw);
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(clamp(0, calc((var(--p, 1) - 0.55) * 3), 1));
  transform-origin: left;
}
.converge__pin.is-scene {
  height: 180svh;
}
.converge__pin.is-scene .converge__stage {
  position: sticky;
  top: var(--header-h);
  height: calc(100svh - var(--header-h));
  min-height: 0;
}
.value__body {
  grid-column: 4 / 12;
}
.value__text {
  margin-left: auto;
  max-width: 30em;
  color: var(--c-muted);
}

/* WORKS — Concept Case のプレビュー。1件目を大きく、2・3件目をずらして並べる */
.section-head--split {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  column-gap: 40px;
}
.section-head__note {
  max-width: 22em;
  font-size: 15px;
  color: var(--c-muted);
}
.works {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  row-gap: var(--s-l);
}
.work:nth-child(1) {
  grid-column: 1 / 13;
}
.work:nth-child(1) .work__link {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  align-items: end;
}
.work:nth-child(1) .work__visual {
  grid-column: 1 / 9;
}
.work:nth-child(1) .work__meta {
  grid-column: 9 / 13;
  margin-top: 0;
}
.work:nth-child(2) {
  grid-column: 1 / 7;
}
.work:nth-child(3) {
  grid-column: 7 / 13;
  margin-top: 12%;
}
.work__link {
  display: block;
  text-decoration: none;
}
.work__visual,
.case__visual {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 3vw, 44px);
  border: 1px solid var(--c-line);
  background:
    repeating-linear-gradient(90deg, var(--c-grid) 0 1px, transparent 1px 14px),
    var(--c-surface);
}
/* 枠に一本の切れ目（ブランドの印）。表示されたあとに上から引かれる */
.work__visual::after,
.case__visual::after {
  content: "";
  position: absolute;
  top: -12%;
  bottom: -12%;
  right: 9%;
  width: 2px;
  background: var(--c-accent);
  transform: rotate(12deg);
  transform-origin: top;
  pointer-events: none;
}
.work__meta {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}
.work__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}
.work__label span {
  margin-right: 12px;
  color: var(--c-accent);
}
.work__title {
  font-size: var(--fs-h3);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 6px;
  transition: text-decoration-color 200ms ease;
}
.work__link:hover .work__title,
.work__link:focus-visible .work__title {
  text-decoration-color: var(--c-accent);
}
.work__summary {
  font-size: 15px;
  color: var(--c-muted);
}
.works__notice {
  margin-top: var(--s-m);
  padding-left: 14px;
  border-left: 2px solid var(--c-accent);
  font-size: 14px;
  color: var(--c-muted);
}

/* 事例の画面モック（CSS のみ。写真が入るまでの仮の完成像） */
.mock {
  color: var(--m-fg);
  background: var(--m-bg);
  font-family: var(--font);
  letter-spacing: 0.04em;
}
.mock--pc {
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 30px 60px -30px var(--c-shadow);
}
.mock__bar {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  background: color-mix(in srgb, var(--m-fg) 8%, var(--m-bg));
}
.mock__bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--m-fg) 25%, transparent);
}
.mock__screen {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 5% 6%;
  overflow: hidden;
}
.mock__nav {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 4%;
  font-size: clamp(7px, 0.8vw, 11px);
  letter-spacing: 0.12em;
}
.mock__nav b {
  margin-right: auto;
  font-weight: 700;
}
.mock__nav span {
  width: 6%;
  height: 2px;
  background: currentColor;
  opacity: 0.35;
}
.mock__hero {
  position: relative;
  z-index: 1;
  align-self: center;
  max-width: 58%;
}
.mock__head {
  font-size: clamp(14px, 2.4vw, 36px);
  font-weight: 500;
  line-height: 1.35;
}
.mock__sub {
  margin-top: 4%;
  font-size: clamp(7px, 0.85vw, 12px);
  opacity: 0.72;
}
.mock__btn {
  display: block;
  width: 30%;
  height: clamp(8px, 1.3vw, 18px);
  margin-top: 6%;
  background: var(--m-accent);
}
.mock__shape {
  position: absolute;
}
.mock__rows {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 4%;
}
.mock__rows span {
  flex: 1;
  height: clamp(14px, 3vw, 40px);
  background: color-mix(in srgb, var(--m-fg) 7%, var(--m-bg));
}
/* 和菓子: 縦組みの見出しと季節の印 */
.mock--tate .mock__hero {
  justify-self: end;
  margin-right: 8%;
  max-width: none;
  writing-mode: vertical-rl;
}
.mock--tate .mock__sub {
  margin: 0 8% 0 0;
}
.mock--tate .mock__btn {
  width: clamp(8px, 1.3vw, 18px);
  height: 26%;
  margin: 0 12% 0 0;
}
.mock--tate .mock__shape {
  left: 9%;
  top: 22%;
  width: 34%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: color-mix(in srgb, var(--m-accent) 82%, var(--m-bg));
}
/* 精密部品: 方眼と寸法の円 */
.mock--grid .mock__screen {
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--m-fg) 7%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--m-fg) 7%, transparent) 1px,
      transparent 1px
    );
  background-size: 22px 22px;
}
.mock--grid .mock__shape {
  right: 8%;
  top: 20%;
  width: 32%;
  aspect-ratio: 1;
  border: 1px solid var(--m-fg);
  border-radius: 50%;
}
.mock--grid .mock__shape::before,
.mock--grid .mock__shape::after {
  content: "";
  position: absolute;
  background: var(--m-accent);
}
.mock--grid .mock__shape::before {
  left: -10%;
  right: -10%;
  top: 50%;
  height: 1px;
}
.mock--grid .mock__shape::after {
  top: -10%;
  bottom: -10%;
  left: 50%;
  width: 1px;
}
/* 設計事務所: 暗い面に開口部の光 */
.mock--dark .mock__shape {
  right: 10%;
  top: 16%;
  width: 22%;
  height: 60%;
  background: var(--m-accent);
  opacity: 0.85;
}
.mock--dark .mock__shape::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 52%;
  height: 1px;
  background: var(--m-bg);
}
.mock--sp {
  overflow: hidden;
  border: 4px solid #1c1c1c;
  border-radius: 16px;
  box-shadow: 0 24px 48px -24px var(--c-shadow);
}
.mock--sp .mock__screen {
  aspect-ratio: 9 / 18;
  padding: 12% 10%;
}
.mock--sp .mock__nav {
  font-size: 8px;
}
.mock--sp .mock__hero {
  max-width: none;
}
.mock--sp .mock__head {
  font-size: clamp(11px, 1.3vw, 18px);
}
.mock--sp.mock--tate .mock__hero {
  margin-right: 0;
}
.mock--sp .mock__shape {
  width: 46%;
  top: auto;
  bottom: 18%;
}
.mock--sp.mock--dark .mock__shape {
  height: 28%;
}
.mock--detail {
  display: grid;
  align-content: space-between;
  gap: 24px;
  aspect-ratio: 1;
  padding: 12%;
  border-radius: 4px;
}
.mock--detail .mock__head {
  font-size: clamp(18px, 2.1vw, 30px);
}
.mock--detail.mock--tate .mock__head {
  writing-mode: vertical-rl;
  justify-self: end;
}
.mock__detail {
  padding-top: 10px;
  border-top: 1px solid color-mix(in srgb, var(--m-fg) 30%, transparent);
  font-size: clamp(10px, 0.9vw, 12px);
  letter-spacing: 0.1em;
  color: var(--m-accent);
}

/* WORKS ページ: PC・SP・部分の組み合わせ */
.case {
  padding-block: var(--s-l);
  border-top: 1px solid var(--c-line);
  scroll-margin-top: var(--header-h);
}
.case__visual {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}
.case__visual .mock--pc {
  grid-column: 1 / 9;
  grid-row: 1 / 3;
}
.case__visual .mock--detail {
  grid-column: 9 / 13;
  grid-row: 1;
  align-self: start;
}
.case__visual .mock--sp {
  grid-column: 10 / 12;
  grid-row: 2;
  align-self: end;
}
.case__body {
  margin-top: var(--s-m);
}
.case__info {
  grid-column: 1 / 5;
}
.case__info h2 {
  margin-top: 12px;
  font-size: clamp(22px, 2.4vw, 32px);
}
.case__lead {
  margin-top: 16px;
  font-size: 16px;
  color: var(--c-muted);
}
.case__notice {
  margin-top: 20px;
  padding-left: 14px;
  border-left: 2px solid var(--c-accent);
  font-size: 13px;
  color: var(--c-muted);
}
.case__notice strong {
  display: block;
  margin-bottom: 2px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-text);
}
.case__fields {
  grid-column: 6 / 13;
}
.works-intro {
  padding-block: var(--s-m) var(--s-l);
}
.works-intro__notice {
  max-width: 52em;
  padding: 20px 24px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-accent);
  font-size: 15px;
  color: var(--c-muted);
}
.works-intro__notice strong {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-text);
}
.works-index {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 32px;
}
.works-index a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-size: 15px;
  text-decoration: none;
}
.works-index a:hover {
  text-decoration: underline;
  text-decoration-color: var(--c-accent);
  text-underline-offset: 6px;
}
.works-index span {
  font-size: 12px;
  color: var(--c-accent);
}

/* PROBLEM — 4:8、左見出し固定。読める明るさを保ったまま、画面中央の項目を強調する */
.problem__head {
  grid-column: 1 / 5;
}
.problem__head h2 {
  font-size: clamp(28px, 2.9vw, 42px);
  position: sticky;
  top: calc(var(--header-h) + 40px);
}
.problem__body {
  grid-column: 6 / 13;
}
.problem__list li {
  display: flex;
  gap: 24px;
  align-items: baseline;
  padding: 22px 0;
  border-top: 1px solid var(--c-line);
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.6;
  transition: color 400ms ease;
}
.problem__list li:last-child {
  border-bottom: 1px solid var(--c-line);
}
.problem__list span {
  font-size: 13px;
  color: var(--c-faint);
  font-variant-numeric: tabular-nums;
  transition: color 400ms ease;
}
[data-scene="focus"].is-scene .problem__list li {
  color: var(--c-muted);
}
[data-scene="focus"].is-scene .problem__list li.is-active {
  color: var(--c-text);
}
[data-scene="focus"].is-scene .problem__list li.is-active span {
  color: var(--c-accent);
}
.problem__answer {
  margin-top: var(--s-m);
}
.problem__bridge {
  margin-top: var(--s-m);
  padding-left: 20px;
  border-left: 2px solid var(--c-accent);
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.6;
}

/* APPROACH — 段階的にずれる縦のストーリー。画面中央の項目だけを明るくする */
.approach {
  position: relative;
}
[data-scene="focus"].is-scene .approach::before,
[data-scene="focus"].is-scene .approach::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--gutter) / -2);
  width: 1px;
  background: var(--c-line);
}
[data-scene="focus"].is-scene .approach::after {
  background: var(--c-accent);
  transform: scaleY(var(--p, 0));
  transform-origin: top;
}
[data-scene="focus"].is-scene .approach__word,
[data-scene="focus"].is-scene .approach__text {
  transition:
    color 500ms ease,
    opacity 500ms ease;
}
/* 非アクティブでも 45% 以上の見え方を保つ（無効状態に見せない） */
[data-scene="focus"].is-scene .approach__item:not(.is-active) .approach__word {
  opacity: 0.45;
}
[data-scene="focus"].is-scene .approach__item:not(.is-active) .approach__text {
  opacity: 0.6;
}
.approach__item {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  padding-block: var(--s-m);
  border-top: 1px solid var(--c-line);
}
.approach__word {
  font-size: clamp(44px, 8vw, 112px);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--c-text);
}
.approach__item:nth-child(1) .approach__word {
  grid-column: 1 / 8;
}
.approach__item:nth-child(2) .approach__word {
  grid-column: 3 / 10;
}
.approach__item:nth-child(3) .approach__word {
  grid-column: 5 / 12;
}
.approach__text {
  grid-column: 8 / 13;
  align-self: end;
}
.approach__item:nth-child(1) .approach__text {
  grid-column: 8 / 13;
}
.approach__item:nth-child(2) .approach__text {
  grid-column: 10 / 13;
}
.approach__item:nth-child(3) .approach__text {
  grid-column: 1 / 5;
  grid-row: 1;
}
.approach__text h3 {
  font-size: 17px;
  font-weight: 700;
}
.approach__text p {
  margin-top: 8px;
  font-size: 15px;
  color: var(--c-muted);
}
.approach__times {
  color: var(--c-accent);
  font-weight: 400;
}
.approach__change {
  margin-top: 14px !important;
  color: var(--c-text) !important;
}
.approach__change span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-accent);
}

/* SERVICE（TOP）— 名前・対象・変わることを一画面で見比べる罫線の表 */
.service-table {
  border-top: 1px solid var(--c-line);
}
.service-table__head,
.service-table__row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 4fr);
  column-gap: 32px;
}
.service-table__head {
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-faint);
}
.service-table__row {
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid var(--c-line);
}
.service-table__name {
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.35;
}
.service-table__name span {
  margin-right: 14px;
  font-size: 13px;
  color: var(--c-accent);
}
.service-table__name small {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}
.service-table__row p {
  font-size: 15px;
  color: var(--c-muted);
}
.service-table__k {
  display: none;
}

/* SERVICE ページ — 対象 → 変わること → 範囲 → 成果物 の統一書式 */
.svc__item {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  padding-block: var(--s-l);
  border-top: 1px solid var(--c-line);
  scroll-margin-top: var(--header-h);
}
.svc__item:first-child {
  padding-top: 0;
  border-top: 0;
}
.svc__head {
  grid-column: 1 / 6;
}
.svc__num {
  font-size: 13px;
  color: var(--c-accent);
}
.svc__name {
  margin-top: 12px;
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.3;
}
.svc__name small {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-muted);
}
.svc__lead {
  margin-top: 20px;
  color: var(--c-muted);
}
.svc__spec {
  grid-column: 7 / 13;
  border-top: 1px solid var(--c-line);
}
.svc__spec > div,
.cap-list > div {
  display: grid;
  grid-template-columns: 9em minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
}
.svc__spec dt {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-faint);
}
.svc__spec dd,
.cap-list dd {
  font-size: 15px;
}
.cap-list {
  border-top: 1px solid var(--c-line);
}
.cap-list dt {
  font-weight: 700;
  letter-spacing: 0.06em;
}
.cap-list dd {
  color: var(--c-muted);
}

/* 工程の進行線（FLOW ページ） */
.process__track {
  position: absolute;
  left: 5px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--c-line);
}
.process__track::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--c-accent);
  transform: scaleY(var(--progress));
  transform-origin: top;
}

/* PROCESS — Desktop 4列×2段 / Tablet 2列 / Mobile 1列。画面に入ると上の赤線と番号が順に灯る */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 24px;
  row-gap: var(--s-m);
}
.process-grid__item {
  position: relative;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}
.process-grid__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 40%;
  height: 2px;
  background: var(--c-accent);
  transform-origin: left;
}
.process-grid__num {
  display: block;
  font-size: clamp(48px, 5vw, 80px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-text);
}
.process-grid__item h3 {
  margin-top: 20px;
  font-size: var(--fs-h3);
}
.process-grid__item p {
  margin-top: 10px;
  max-width: 22em;
  font-size: 15px;
  color: var(--c-muted);
}
@media (max-width: 1023px) {
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 599px) {
  .process-grid {
    grid-template-columns: 1fr;
    row-gap: 0;
  }
  .process-grid__item {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    column-gap: 16px;
    padding: 20px 0 24px;
  }
  .process-grid__num {
    grid-row: 1 / 3;
    font-size: 40px;
  }
  .process-grid__item h3 {
    margin-top: 0;
  }
}

/* STORY — 暗い言葉が順に灯る。--p 未設定では全部灯った状態 */
.story {
  padding-block: calc(var(--s-xl) * 1.2);
}
.story__stage {
  align-content: center;
}
.story__body {
  grid-column: 5 / 12;
}
.story__line {
  width: 1px;
  height: 120px;
  margin-bottom: var(--s-m);
  background: var(--c-accent);
  transform: scaleY(var(--p, 1));
  transform-origin: top;
}
.story__words {
  margin-top: 24px;
  font-size: clamp(24px, 3.2vw, 42px);
  line-height: 1.75;
}
.story__words span {
  display: inline-block;
  opacity: clamp(
    0.32,
    calc(var(--p, 1) * (var(--n) + 0.8) - var(--i) - 0.2),
    1
  );
}
.story__words em {
  font-style: normal;
  color: var(--c-accent);
}
.story__text {
  margin-top: var(--s-m);
  color: var(--c-muted);
}
.story__text,
.story__more {
  opacity: clamp(0, calc((var(--p, 1) - 0.78) * 5), 1);
}
.story.is-scene {
  height: 180svh;
  padding-block: 0;
}
.story.is-scene .story__stage {
  position: sticky;
  top: var(--header-h);
  height: calc(100svh - var(--header-h));
}

/* ABOUT（TOP・明背景） */
.about__side {
  grid-column: 1 / 5;
}
.about__name {
  margin-top: 16px;
  font-size: 17px;
  font-weight: 500;
}
.about__name small {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 400;
  color: var(--c-muted);
}
.about__body {
  grid-column: 6 / 12;
  align-self: center;
}
.about__body h2 {
  font-size: var(--fs-h2);
}
.about__body .prose {
  margin-top: var(--s-m);
}
.about__points {
  margin-top: var(--s-m);
  border-top: 1px solid var(--c-line);
}
.about__points li {
  display: flex;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
}
.about__points span {
  padding-top: 3px;
  font-size: 12px;
  color: var(--c-accent);
}

/* プロフィール（ABOUT ページ・TOP 共通。profile.json から描画） */
.profile {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  align-items: start;
}
.profile .profile__photo {
  grid-column: 1 / 5;
}
.profile__photo {
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.profile__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.profile__photo--pending {
  display: grid;
  place-content: center;
  gap: 6px;
  text-align: center;
  border: 1px dashed var(--c-line-strong);
  background: repeating-linear-gradient(
    90deg,
    var(--c-grid) 0 1px,
    transparent 1px 14px
  );
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}
.profile__photo--pending small {
  font-size: 12px;
}
.profile__body {
  grid-column: 6 / 13;
}
.profile__name {
  margin-top: 20px;
  font-size: var(--fs-h2);
}
.profile__role {
  margin-top: 8px;
  font-size: 15px;
  color: var(--c-muted);
}
.profile__facts {
  margin-top: var(--s-m);
  border-top: 1px solid var(--c-line);
}
.profile__facts > div {
  display: grid;
  grid-template-columns: 9em minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
}
.profile__facts dt {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.profile__facts li {
  font-size: 15px;
}

/* 入稿待ちの文章枠（STORY の ORIGIN など） */
.slot {
  padding: 24px 28px;
  border: 1px dashed var(--c-line-strong);
  background: repeating-linear-gradient(
    90deg,
    var(--c-grid) 0 1px,
    transparent 1px 14px
  );
}
.slot__label {
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-accent);
}
.slot p:not(.slot__label) {
  color: var(--c-muted);
}

/* FAQ */
.faq-wrap .section-head {
  grid-column: 1 / 5;
  align-content: start;
}
.faq {
  grid-column: 5 / 13;
}
.faq details {
  border-top: 1px solid var(--c-line);
}
.faq details:last-child {
  border-bottom: 1px solid var(--c-line);
}
.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.4vw, 18px);
  font-weight: 500;
  line-height: 1.6;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "+";
  flex: none;
  font-family: "Manrope", sans-serif;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.1;
  transition: transform 200ms var(--ease-out);
}
.faq details[open] summary::after {
  transform: rotate(45deg);
}
.faq .faq__a {
  padding: 0 48px 28px 0;
  max-width: var(--measure);
}
.faq .faq__a {
  color: var(--c-muted);
}
/* 回答は1行目に結論 */
.faq .faq__a strong {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
  color: var(--c-text);
}
.faq__more {
  margin-top: var(--s-m);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
}
.faq-wrap__note {
  font-size: 14px;
  color: var(--c-muted);
}
.final .label {
  margin-bottom: 28px;
}

/* FINAL CTA — Hero の切れ目をもう一度開く */
.final {
  padding-block: var(--s-xl);
  overflow: hidden;
}
.final .field__canvas,
.final .field-static {
  -webkit-mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.22) 0%,
    rgba(0, 0, 0, 0.32) 45%,
    #000 72%
  );
  mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.22) 0%,
    rgba(0, 0, 0, 0.32) 45%,
    #000 72%
  );
}
/* モバイルは切れ目を上の余白だけに置き、見出し・ボタンに重ねない */
@media (max-width: 767px) {
  .final {
    padding-top: calc(var(--s-xl) + 120px);
  }
  .final .field__canvas,
  .final .field-static {
    -webkit-mask-image: linear-gradient(
      180deg,
      #000 0%,
      #000 16%,
      rgba(0, 0, 0, 0.18) 30%
    );
    mask-image: linear-gradient(
      180deg,
      #000 0%,
      #000 16%,
      rgba(0, 0, 0, 0.18) 30%
    );
  }
}
@media (prefers-reduced-motion: no-preference) {
  .final.is-live:not(.is-ignited) .final__title span {
    clip-path: inset(0 100% 0 0);
  }
  .final.is-ignited .final__title span {
    animation: wipe-in 900ms var(--ease) both;
  }
  .final.is-ignited .final__title span:nth-child(1) {
    animation-delay: 450ms;
  }
  .final.is-ignited .final__title span:nth-child(2) {
    animation-delay: 620ms;
  }
}
.final__title {
  font-size: clamp(28px, 5.2vw, 72px);
  font-weight: 500;
  line-height: 1.3;
}
.final__title span {
  display: inline-block;
}
.final__grid {
  margin-top: var(--s-l);
}
.final__steps {
  grid-column: 1 / 7;
  counter-reset: s;
}
.final__steps li {
  counter-increment: s;
  display: flex;
  gap: 20px;
  padding: 12px 0;
  border-top: 1px solid var(--c-line);
  font-size: 15px;
  color: var(--c-muted);
}
.final__steps li::before {
  content: "0" counter(s);
  font-size: 12px;
  color: var(--c-faint);
  padding-top: 3px;
}
.final__action {
  grid-column: 8 / 13;
  align-self: end;
  display: grid;
  gap: 16px;
  justify-items: start;
}

/* ---------- sub pages ---------- */
.page-hero {
  padding-block: var(--s-l) var(--s-l);
  border-bottom: 1px solid var(--c-line);
  overflow: hidden;
}
/* ページヒーローの高さはページの役割で変える（55〜70vh） */
.page-hero {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 55svh;
}
.page-hero--mid {
  min-height: 62svh;
}
.page-hero--tall {
  min-height: 70svh;
}
.page-hero--center {
  justify-content: center;
}
.block__body--narrow {
  max-width: 36em;
}
.block__head--wide {
  margin-bottom: var(--s-l);
}

/* CONCEPT: 伝える → 体験させる → 選ばれる */
.model {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--c-line);
}
.model__step {
  position: relative;
  padding: 40px 32px 40px 0;
}
.model__step + .model__step {
  padding-left: 32px;
  border-left: 1px solid var(--c-line);
}
/* 段階の境目に、一本の切れ目 */
.model__step + .model__step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 32px;
  width: 2px;
  height: 72px;
  background: var(--c-accent);
  transform: rotate(14deg);
}
.model__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-faint);
}
.model__word {
  margin-top: 20px;
  font-size: clamp(26px, 3.6vw, 56px);
  white-space: nowrap;
  font-weight: 500;
  line-height: 1.2;
}
.model__step:last-child .model__word {
  color: var(--c-accent);
}
.model__step p {
  margin-top: 16px;
  max-width: 18em;
  color: var(--c-muted);
}
.model__note {
  margin-top: var(--s-m);
  font-size: 15px;
  color: var(--c-muted);
}

/* STORY: 章番号 */
.chapter__num {
  margin-bottom: 20px;
  font-size: clamp(64px, 8vw, 120px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-line-strong);
}
.belief {
  border-top: 1px solid var(--c-line);
}
.belief li {
  display: flex;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: clamp(18px, 1.8vw, 22px);
}
.belief span {
  padding-top: 6px;
  font-size: 12px;
  color: var(--c-accent);
}

/* FLOW: 4つのフェーズ */
.block--phases {
  padding-block: var(--s-m) 0;
}
.block--phases + .block {
  border-top: 0;
}
.phases {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--c-line);
}
.phases li + li {
  border-left: 1px solid var(--c-line);
}
.phases a {
  display: grid;
  gap: 6px;
  height: 100%;
  padding: 24px;
  text-decoration: none;
  transition: background-color 200ms ease;
}
.phases a:hover {
  background: var(--c-surface);
}
.phases span {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.phases b {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 500;
}
.phases small {
  font-size: 14px;
  color: var(--c-muted);
}
.flow-steps li.flow-steps__phase {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-block: 48px 12px;
  border-bottom: 1px solid var(--c-line-strong);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 500;
  scroll-margin-top: var(--header-h);
}
.flow-steps__phase span {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.flow-steps__out {
  padding: 10px 14px;
  border-left: 2px solid var(--c-accent);
  background: var(--c-surface);
  color: var(--c-text);
}
.flow-steps__out span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-faint);
}

.page-hero .field__canvas,
.page-hero .field-static {
  -webkit-mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.12) 0%,
    rgba(0, 0, 0, 0.25) 50%,
    #000 82%
  );
  mask-image: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.12) 0%,
    rgba(0, 0, 0, 0.25) 50%,
    #000 82%
  );
}
@media (prefers-reduced-motion: no-preference) {
  .page-hero__title span {
    animation: wipe-in 900ms var(--ease) both;
  }
  .page-hero__title span:nth-child(1) {
    animation-delay: 250ms;
  }
  .page-hero__title span:nth-child(2) {
    animation-delay: 360ms;
  }
  .page-hero__title span:nth-child(3) {
    animation-delay: 470ms;
  }
  .page-hero__title span:nth-child(4) {
    animation-delay: 580ms;
  }
  .page-hero__lead {
    animation: rise-in 700ms var(--ease-out) 750ms both;
  }
  .page-hero__seam::after {
    animation: grow-x 1100ms var(--ease) 500ms both;
  }
}
@keyframes grow-x {
  from {
    transform: scaleX(0);
  }
}
.page-hero__grid {
  align-items: end;
}
.page-hero__title {
  grid-column: 1 / 9;
  margin-top: 24px;
  font-size: var(--fs-h1);
}
.page-hero__title span {
  display: inline-block;
}
.page-hero__lead {
  grid-column: 9 / 13;
  color: var(--c-muted);
  font-size: 16px;
}
.page-hero__seam {
  position: relative;
  height: 1px;
  margin-top: var(--s-l);
  background: var(--c-line);
}
.page-hero__seam::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  width: 22%;
  background: var(--c-accent);
  transform-origin: left;
}

.block {
  padding-block: var(--s-l);
}
.block + .block {
  border-top: 1px solid var(--c-line);
}
.block__head {
  grid-column: 1 / 5;
}
.block__head h2 {
  margin-top: 16px;
  font-size: clamp(22px, 2.6vw, 32px);
}
.block__body {
  grid-column: 6 / 13;
}
.block__body h3 {
  font-size: var(--fs-h3);
  margin-bottom: 12px;
}
.block__body > * + * {
  margin-top: var(--s-m);
}
.manifesto {
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.6;
}
.manifesto span {
  display: inline-block;
}

.def-list {
  border-top: 1px solid var(--c-line);
}
.def-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
}
.def-list dt {
  color: var(--c-muted);
}
.pending {
  color: var(--c-faint);
}

.principles li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--c-line);
}
.principles li:last-child {
  border-bottom: 1px solid var(--c-line);
}
.principles .num {
  font-size: 12px;
  color: var(--c-faint);
  padding-top: 6px;
}
.principles h3 {
  font-size: 18px;
  margin-bottom: 6px;
}
.principles p {
  font-size: 15px;
  color: var(--c-muted);
}
.principles--lined h3 {
  font-size: clamp(18px, 1.7vw, 22px);
}

.fit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--s-m);
}
.fit h3 {
  font-size: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line-strong);
}
.fit li {
  padding: 12px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
}
.fit__no li {
  color: var(--c-muted);
}

.flow-steps {
  position: relative;
  --progress: 0;
}
.flow-steps .process__track {
  left: 5px;
  right: auto;
  top: 0;
  bottom: 0;
  width: 1px;
  height: auto;
}
.flow-steps .process__track::after {
  transform: scaleY(var(--progress));
  transform-origin: top;
}
.flow-steps ol {
  padding-left: 48px;
}
.flow-steps li {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  padding-block: var(--s-m);
  border-bottom: 1px solid var(--c-line);
}
.flow-steps .num {
  grid-column: 1 / 2;
  font-size: 12px;
  color: var(--c-faint);
  padding-top: 8px;
  transition: color 200ms ease;
}
.flow-steps li.is-passed .num {
  color: var(--c-accent);
}
.flow-steps h2 {
  grid-column: 2 / 6;
  font-size: var(--fs-h3);
}
.flow-steps .flow-steps__body {
  grid-column: 6 / 13;
  font-size: 15px;
  color: var(--c-muted);
}
.flow-steps .flow-steps__body strong {
  color: var(--c-text);
  font-weight: 500;
}

/* ---------- contact form ---------- */
.form {
  display: grid;
  gap: 28px;
}
.field {
  display: grid;
  gap: 10px;
}
.field__label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
}
.field__req {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}
.field__opt {
  font-size: 11px;
  color: var(--c-muted);
  font-weight: 400;
}
.field__hint {
  font-size: var(--fs-small);
  color: var(--c-muted);
}
.input,
.select,
.textarea {
  width: 100%;
  min-height: 52px;
  padding: 12px 14px;
  border: 1px solid var(--c-line-strong);
  border-radius: 2px;
  background: var(--c-surface);
  color: var(--c-text);
  font: 400 16px/1.6 var(--font);
  letter-spacing: 0.02em;
}
.textarea {
  min-height: 200px;
  resize: vertical;
}
.select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--c-muted) 50%),
    linear-gradient(135deg, var(--c-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) 50%,
    calc(100% - 15px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}
.input:focus-visible,
.select:focus-visible,
.textarea:focus-visible {
  outline: 2px solid var(--c-text);
  outline-offset: 0;
  border-color: transparent;
}
.input[aria-invalid="true"],
.textarea[aria-invalid="true"] {
  border-color: var(--c-accent);
}
.field__error {
  font-size: var(--fs-small);
  color: var(--c-error);
}
.field__error:empty {
  display: none;
}
.field--row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
}
.check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
}
.check input {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  accent-color: var(--c-accent);
  flex: none;
}
.form__status {
  padding: 16px 20px;
  border-left: 2px solid var(--c-accent);
  background: var(--c-surface);
  font-size: 14px;
}
.form__status:empty {
  display: none;
}
.contact__aside {
  grid-column: 1 / 5;
  grid-row: 1;
}
.contact__form {
  grid-column: 6 / 13;
  grid-row: 1;
}
.contact__aside .final__steps li {
  font-size: 14px;
}
.examples li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--c-muted);
}
.examples li::before {
  content: "— ";
  color: var(--c-faint);
}

/* フォーム上部の書き方の例と、送信成功時の完了表示 */
.form__example {
  padding: 16px 20px;
  border-left: 2px solid var(--c-line-strong);
  background: var(--c-surface);
  font-size: 15px;
  line-height: 1.8;
}
.form__example > span {
  display: block;
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-faint);
}
.form__example small {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--c-muted);
}
.form__done {
  padding: 40px;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-accent);
}
.form__done:focus {
  outline: none;
}
.form__done-title {
  margin-top: 16px;
  font-size: clamp(24px, 2.6vw, 34px);
}
.form__done p:not(.label) {
  margin-top: 12px;
  color: var(--c-muted);
}
.form__done-links {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
}

/* ---------- CTA band (sub pages) ---------- */
.cta-band {
  padding-block: var(--s-l);
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
}
.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s-m);
}
.cta-band h2 {
  font-size: clamp(22px, 3vw, 36px);
}
.cta-band h2 span {
  display: inline-block;
}
.cta-band p {
  margin-top: 12px;
  font-size: 15px;
  color: var(--c-muted);
}

/* ---------- footer ---------- */
.site-footer {
  padding-block: var(--s-l) var(--s-m);
  border-top: 1px solid var(--c-line);
  font-size: 14px;
}
.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-m);
}
.site-footer__statement {
  margin-top: 16px;
  color: var(--c-muted);
  font-size: 14px;
}
.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 8px 48px;
}
.site-footer__nav a {
  display: inline-block;
  padding: 6px 0;
  color: var(--c-muted);
  text-decoration: none;
}
.site-footer__nav a:hover {
  color: var(--c-text);
}
.site-footer__bottom {
  margin-top: var(--s-l);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
  font-size: 12px;
  color: var(--c-muted);
}

/* ---------- responsive (sections) ---------- */
@media (max-width: 1023px) {
  .value__body,
  .problem__head,
  .problem__body,
  .story__body,
  .about__side,
  .about__body,
  .svc__head,
  .svc__spec,
  .profile .profile__photo,
  .profile__body,
  .faq-wrap .section-head,
  .faq,
  .final__steps,
  .final__action,
  .page-hero__title,
  .page-hero__lead,
  .block__head,
  .block__body,
  .case__info,
  .case__fields,
  .contact__aside,
  .contact__form {
    grid-column: 1 / -1;
  }
  .problem__head h2 {
    position: static;
  }
  .problem__body,
  .block__body,
  .case__fields,
  .contact__aside {
    margin-top: var(--s-m);
  }
  .contact__aside,
  .contact__form {
    grid-row: auto;
  }
  .about__side,
  .profile .profile__photo {
    max-width: 240px;
  }
  /* 狭い画面では見出しを先に読ませ、写真は後ろに小さく置く */
  .about__side {
    order: 2;
    margin-top: var(--s-m);
  }
  .svc__spec,
  .profile__body {
    margin-top: var(--s-m);
  }
  .work:nth-child(1) .work__link {
    display: block;
  }
  .work:nth-child(1) .work__meta {
    margin-top: 20px;
  }
  .work:nth-child(3) {
    margin-top: 0;
  }
  .case__visual .mock--pc {
    grid-column: 1 / -1;
    grid-row: auto;
  }
  .case__visual .mock--detail {
    grid-column: 1 / 8;
    grid-row: auto;
  }
  .case__visual .mock--sp {
    grid-column: 9 / 13;
    grid-row: auto;
  }
  .about__body {
    margin-top: var(--s-m);
  }
  .final__action {
    margin-top: var(--s-m);
  }
  .page-hero__lead {
    margin-top: 24px;
  }
  .approach__item .approach__word,
  .approach__item .approach__text {
    grid-column: 1 / -1 !important;
    grid-row: auto !important;
  }
  .approach__item:nth-child(2) .approach__word {
    padding-left: 8%;
  }
  .approach__item:nth-child(3) .approach__word {
    padding-left: 16%;
  }
  .approach__text {
    margin-top: 20px;
    max-width: 30em;
  }
  .flow-steps h2,
  .flow-steps .flow-steps__body {
    grid-column: 2 / 13;
  }
  .flow-steps .flow-steps__body {
    margin-top: 12px;
  }
}
@media (max-width: 767px) {
  .works {
    row-gap: var(--s-m);
  }
  .work:nth-child(n) {
    grid-column: 1 / -1;
  }
  .section-head--split {
    grid-template-columns: 1fr;
    row-gap: 16px;
  }
  .service-table__head {
    display: none;
  }
  .service-table__row {
    grid-template-columns: 1fr;
    row-gap: 14px;
    padding: 28px 0;
  }
  .service-table__k {
    display: block;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.12em;
    color: var(--c-accent);
  }
  .svc__spec > div,
  .cap-list > div,
  .profile__facts > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .model {
    grid-template-columns: 1fr;
  }
  .model__step,
  .model__step + .model__step {
    padding: 32px 0;
    border-left: 0;
  }
  .model__step + .model__step {
    border-top: 1px solid var(--c-line);
  }
  .model__step + .model__step::before {
    left: 0;
    top: -1px;
    width: 64px;
    height: 2px;
    transform: none;
  }
  .phases {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .phases li:nth-child(3) {
    border-left: 0;
  }
  .phases li:nth-child(n + 3) {
    border-top: 1px solid var(--c-line);
  }
  .page-hero,
  .page-hero--mid,
  .page-hero--tall {
    min-height: 46svh;
  }
  .case__visual {
    gap: 16px;
  }
  .fit,
  .field--row {
    grid-template-columns: 1fr;
  }
  .def-list > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .flow-steps ol {
    padding-left: 28px;
  }
  .flow-steps .num,
  .flow-steps h2,
  .flow-steps .flow-steps__body {
    grid-column: 1 / -1;
  }
  .flow-steps .num {
    padding: 0 0 6px;
  }
  .site-footer__nav {
    grid-template-columns: repeat(2, auto);
    justify-content: start;
  }
  .cta-band .btn {
    width: 100%;
    justify-content: space-between;
  }
  .faq .faq__a {
    padding-right: 0;
  }
}

/* ---------- reveal（main.js の初期化が成功し、動き許可時のみ隠す。読込失敗時は表示のまま）
   本文: 不透明度＋上下 20px／600ms に統一。画像: clip-path で開き、中身が 1.00→1.02 にわずかに拡大 ---------- */
@media (prefers-reduced-motion: no-preference) {
  html.reveal-on [data-reveal="fade"] {
    opacity: 0;
    transform: translateY(20px);
    transition:
      opacity 600ms var(--ease-out),
      transform 600ms var(--ease-out);
  }
  html.reveal-on [data-reveal="mask"] {
    clip-path: inset(0 0 100% 0);
    transition: clip-path 700ms var(--ease);
  }
  html.reveal-on [data-reveal="mask"] > .mock {
    transition: transform 1400ms var(--ease-out) 200ms;
  }
  html.reveal-on [data-reveal="mask"].is-visible > .mock--pc {
    transform: scale(1.02);
  }
  html.reveal-on [data-reveal="mask"]::after {
    transform: rotate(12deg) scaleY(0);
    transition: transform 800ms var(--ease) 500ms;
  }
  html.reveal-on [data-reveal="mask"].is-visible::after {
    transform: rotate(12deg) scaleY(1);
  }
  html.reveal-on [data-reveal="lit"]::before {
    transform: scaleX(0);
    transition: transform 600ms var(--ease) calc(var(--i, 0) * 120ms);
  }
  html.reveal-on [data-reveal="lit"] .process-grid__num {
    -webkit-text-stroke-color: var(--c-line-strong);
    transition: -webkit-text-stroke-color 500ms ease
      calc(var(--i, 0) * 120ms + 200ms);
  }
  html.reveal-on [data-reveal="lit"].is-visible::before {
    transform: scaleX(1);
  }
  html.reveal-on [data-reveal="lit"].is-visible .process-grid__num {
    -webkit-text-stroke-color: var(--c-text);
  }
  html.reveal-on [data-reveal].is-visible {
    opacity: 1;
    clip-path: inset(0 0 0 0);
    transform: none;
  }
}

/* ==========================================================================
   v3 WHITE IGNITION — 白基調に挟む黒い章と、動きの部品
   すべての動きは prefers-reduced-motion: reduce で止まり、情報は欠けない
   ========================================================================== */

/* 黒い章が画面に入ると、角の丸い黒い面が左右いっぱいまで広がる（--d: 0→1、scroll.js）。
   --d 未設定（JS 無効・Reduced Motion）では最初から全幅の黒 */
.tone-dark[data-darken].is-darken {
  background: transparent;
}
.tone-dark[data-darken].is-darken::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: var(--c-bg);
  clip-path: inset(
    0 calc((1 - var(--d, 1)) * 3vw) round calc((1 - var(--d, 1)) * 28px)
  );
}

/* 黒い章の上ではヘッダーも反転する（html.header-dark、scroll.js） */
html.header-dark .site-header {
  border-bottom-color: var(--c-line);
}

/* 読み進めた位置（ページ最上部の細い赤線） */
.read-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  height: 2px;
  pointer-events: none;
}
.read-progress span {
  display: block;
  height: 100%;
  background: var(--c-accent);
  transform: scaleX(var(--read, 0));
  transform-origin: left;
}

/* 見出しの下の赤い短い線（全ページ共通の印） */
.section-head h2,
.block__head h2,
.cta-band h2 {
  padding-bottom: 18px;
  background: linear-gradient(var(--c-accent), var(--c-accent)) left bottom /
    48px 2px no-repeat;
}

/* 1文字ずつの見出し（main.js が .ch に分割したときだけ） */
.ch {
  display: inline-block;
}

/* ---------- WORKS スライド（TOP）: PC と SP を横並びにした1枚ずつを送る ---------- */
.works-section .section-head {
  margin-bottom: var(--s-m);
}
.wslider {
  --edge: max(var(--gutter), calc((100vw - var(--max)) / 2));
}
.wslider__viewport {
  position: relative;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--edge);
  padding: 8px var(--edge) 24px;
  scrollbar-width: none;
  /* 次の1枚は、右端で薄くなって見切れる（切れた部品に見せない） */
  -webkit-mask-image: linear-gradient(
    90deg,
    #000 calc(100% - 12vw),
    transparent
  );
  mask-image: linear-gradient(90deg, #000 calc(100% - 12vw), transparent);
}
.wslider__viewport::-webkit-scrollbar {
  display: none;
}
.wslider__viewport:focus-visible {
  outline-offset: -4px;
}
.wslider__track {
  display: flex;
  gap: 32px;
  width: max-content;
}
.wslide {
  flex: 0 0 min(1180px, calc(100vw - var(--edge) * 2));
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: 24px;
  align-items: end;
  scroll-snap-align: start;
}
.wslide__stage {
  position: relative;
  grid-column: 1 / 9;
  display: flex;
  align-items: flex-end;
  gap: 4%;
  padding: clamp(20px, 3.4vw, 52px);
  overflow: hidden;
  border: 1px solid var(--c-line);
  background:
    repeating-linear-gradient(90deg, var(--c-grid) 0 1px, transparent 1px 14px),
    var(--c-bg);
}
/* 枠を斜めに横切る一本の切れ目 */
.wslide__stage::after {
  content: "";
  position: absolute;
  top: -12%;
  bottom: -12%;
  right: 30%;
  width: 2px;
  background: var(--c-accent);
  transform: rotate(14deg);
  transform-origin: top;
  pointer-events: none;
}
/* モックを切れ目より手前に置き、赤い線がモックの文字に重ならないようにする */
.wslide__stage .mock {
  position: relative;
  z-index: 1;
}
.wslide__stage .mock--pc {
  flex: 0 0 74%;
}
.wslide__stage .mock--sp {
  flex: 0 0 21%;
}
.wslide__meta {
  grid-column: 9 / 13;
  align-self: center;
  display: grid;
  gap: 12px;
  align-content: center;
}
.wslide__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}
.wslide__label span {
  margin-right: 12px;
  color: var(--c-accent);
}
.wslide__title {
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.4;
}
.wslide__summary {
  font-size: 15px;
  color: var(--c-muted);
}
.wslider__ui {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
  margin-top: 16px;
}
.wslider__count {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  font-variant-numeric: tabular-nums;
}
.wslider__count b {
  font-size: 28px;
  font-weight: 500;
  color: var(--c-text);
}
.wslider__progress {
  position: relative;
  flex: 1 1 160px;
  height: 1px;
  background: var(--c-line-strong);
}
.wslider__progress span {
  position: absolute;
  inset: 0;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
}
.wslider__dots {
  display: flex;
  gap: 4px;
}
.wslider__dot {
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.wslider__dot::before {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--c-line-strong);
  transition:
    background-color 300ms ease,
    width 300ms var(--ease);
}
.wslider__dot[aria-current="true"]::before {
  width: 28px;
  background: var(--c-accent);
}
.wslider__buttons {
  display: flex;
  gap: 8px;
}
.wslider__btn {
  min-width: 48px;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--c-line-strong);
  border-radius: 2px;
  background: none;
  color: var(--c-text);
  font: 500 13px/1 var(--font);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    border-color 200ms ease,
    background-color 200ms ease,
    color 200ms ease;
}
.wslider__btn:hover {
  border-color: var(--c-text);
  background: var(--c-text);
  color: var(--c-bg);
}
.wslider__btn[aria-pressed="true"] {
  border-color: var(--c-accent);
}
/* 操作部品は JS が動いたときだけ（JS 無効時は横スクロールで閲覧） */
html:not(.slider-on) .wslider__ui > :not(.wslider__count) {
  display: none;
}
html:not(.slider-on) .wslider__count {
  display: none;
}
@media (max-width: 1023px) {
  .wslide__stage,
  .wslide__meta {
    grid-column: 1 / -1;
  }
  .wslide__meta {
    margin-top: 20px;
  }
}
@media (max-width: 767px) {
  .wslider__track {
    gap: 16px;
  }
  /* モバイル: PC を大きく、SP は右下に重ねる */
  .wslide__stage {
    display: block;
    padding: 20px 20px 36px;
  }
  .wslide__stage .mock--pc {
    width: 88%;
  }
  .wslide__stage .mock--sp {
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: 30%;
  }
  .wslider__viewport {
    -webkit-mask-image: none;
    mask-image: none;
  }
  .hero__tag {
    display: none;
  }
  .wslide {
    flex-basis: calc(100vw - var(--edge) * 2 - 28px);
  }
  .wslider__progress {
    order: 5;
    flex-basis: 100%;
  }
}

/* SERVICE（TOP）: 行全体がリンク。ホバーで赤線が走り、名前が少し右へ */
.service-table__row {
  position: relative;
}
.service-table__link {
  text-decoration: none;
}
.service-table__link::after {
  content: "";
  position: absolute;
  inset: 0;
}
.service-table__row::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 500ms var(--ease);
}
.service-table__name {
  transition: transform 400ms var(--ease);
}
.service-table__row:hover::after,
.service-table__row:focus-within::after {
  transform: scaleX(1);
}
.service-table__row:hover .service-table__name,
.service-table__row:focus-within .service-table__name {
  transform: translateX(10px);
}

/* ---------- 動き（許可されているときだけ） ---------- */
@media (prefers-reduced-motion: no-preference) {
  /* 見出し: 下から現れ、続いて赤い線が引かれる */
  html.reveal-on [data-reveal="title"] {
    clip-path: inset(0 0 100% 0);
    transform: translateY(24px);
    background-size:
      0 2px,
      auto;
    transition:
      clip-path 800ms var(--ease),
      transform 800ms var(--ease),
      background-size 700ms var(--ease) 500ms;
  }
  html.reveal-on [data-reveal="title"].is-visible {
    clip-path: inset(0 0 -20% 0);
    background-size:
      48px 2px,
      auto;
  }
  /* 一覧: 左から順にすべり込む（--i は main.js が付ける） */
  html.reveal-on [data-reveal="slide"] {
    opacity: 0;
    transform: translateX(-28px);
    transition:
      opacity 600ms var(--ease-out) calc(var(--i, 0) * 90ms),
      transform 600ms var(--ease-out) calc(var(--i, 0) * 90ms);
  }
  html.reveal-on [data-reveal="rise"] {
    opacity: 0;
    transform: translateY(20px);
    transition:
      opacity 600ms var(--ease-out) calc(var(--i, 0) * 90ms),
      transform 600ms var(--ease-out) calc(var(--i, 0) * 90ms);
  }

  /* 1文字ずつ現れる見出し（Hero・下層ヒーロー） */
  html.split-on .hero__title span,
  html.split-on .page-hero__title span {
    animation: none;
  }
  html.split-on .hero__title .ch,
  html.split-on .page-hero__title .ch {
    animation: char-in 760ms var(--ease-out) both;
    animation-delay: calc(var(--d0, 300ms) + var(--ci) * 30ms);
  }

  /* スライド: 表示中の1枚は、PC が左から、SP が少し遅れて下から入り、文字が順に現れる */
  html.slider-on .wslide {
    opacity: 0.4;
    transition: opacity 600ms ease;
  }
  html.slider-on .wslide.is-active {
    opacity: 1;
  }
  html.slider-on .wslide .mock--pc,
  html.slider-on .wslide .mock--sp,
  html.slider-on .wslide__meta > * {
    opacity: 0;
    transition:
      opacity 700ms var(--ease-out),
      transform 900ms var(--ease-out);
  }
  html.slider-on .wslide .mock--pc {
    transform: translateX(-32px);
  }
  html.slider-on .wslide .mock--sp {
    transform: translateY(40px);
    transition-delay: 180ms;
  }
  html.slider-on .wslide__meta > * {
    transform: translateY(14px);
  }
  html.slider-on .wslide__meta > :nth-child(2) {
    transition-delay: 260ms;
  }
  html.slider-on .wslide__meta > :nth-child(3) {
    transition-delay: 340ms;
  }
  html.slider-on .wslide__meta > :nth-child(4) {
    transition-delay: 420ms;
  }
  html.slider-on .wslide.is-active .mock--pc,
  html.slider-on .wslide.is-active .mock--sp,
  html.slider-on .wslide.is-active .wslide__meta > * {
    opacity: 1;
    transform: none;
  }
  html.slider-on .wslide__stage::after {
    transform: rotate(14deg) scaleY(0);
    transition: transform 900ms var(--ease) 300ms;
  }
  html.slider-on .wslide.is-active .wslide__stage::after {
    transform: rotate(14deg) scaleY(1);
  }
  /* 自動再生の進み具合。止めている間は進まない */
  .wslider.is-playing .wslider__progress span {
    animation: slide-timer 6s linear forwards;
  }
  .wslider.is-playing.is-held .wslider__progress span {
    animation-play-state: paused;
  }
}
@keyframes char-in {
  from {
    opacity: 0;
    transform: translateY(0.45em) rotate(6deg);
  }
}
@keyframes slide-timer {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

/* ---------- page transition（View Transitions 対応ブラウザのみ。非対応は通常遷移） ---------- */
@view-transition {
  navigation: auto;
}
@media (prefers-reduced-motion: no-preference) {
  ::view-transition-old(root) {
    animation: 240ms cubic-bezier(0.7, 0, 0.2, 1) both vt-out;
  }
  ::view-transition-new(root) {
    animation: 560ms cubic-bezier(0.7, 0, 0.2, 1) both vt-in;
  }
}
@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}
@keyframes vt-out {
  to {
    opacity: 0;
  }
}
/* 新しいページが、斜めの切れ目から右→左へ開く */
@keyframes vt-in {
  from {
    clip-path: polygon(120% 0, 120% 0, 100% 100%, 100% 100%);
  }
  to {
    clip-path: polygon(-20% 0, 120% 0, 100% 100%, -40% 100%);
  }
}