/* =========================================================
   RAY Inc. — Design Tokens & Base
   ブランド資料のトーンを踏襲（黒基調 + 淡いパープル/ブルーグラデ）
   ※すべてCSS変数で管理し、後からクラウドデザインツールに移植しやすくしています
   ========================================================= */

:root {
  /* Color — PDF会社概要書に合わせた淡いラベンダー/ブルー/ピンク基調 */
  --c-bg:        #ffffff;
  --c-bg-warm:   #f0eef9;  /* PDF本文ページの淡いトーン */
  --c-bg-dark:   #000000;  /* PDF表紙の真っ黒 */
  --c-ink:       #000000;
  --c-ink-sub:   #4a4a4a;
  --c-ink-mute:  #999999;
  --c-line:      #e0dceb;  /* ラベンダー寄りの罫線 */
  --c-accent:    #000000;
  --c-accent-soft: #f0eef9;
  --c-accent-1:  #dce4ff;  /* PDF淡ブルー */
  --c-accent-2:  #e8dcff;  /* PDF淡ラベンダー */
  --c-accent-3:  #f5e9ff;  /* PDF淡ピンク */

  /* Gradient — PDFの淡い4色グラデを踏襲 */
  --g-soft: linear-gradient(135deg, #f4f6ff 0%, #e9ecff 35%, #e8dcff 70%, #f5e9ff 100%);
  --g-hero: linear-gradient(135deg, #f4f6ff 0%, #e9ecff 30%, #e8dcff 65%, #f5e9ff 100%);

  /* Typography — ゴシック中心 */
  --f-sans:  "Inter", "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
  --f-jp:    "Inter", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
  --f-serif: var(--f-jp);

  /* Scale */
  --fs-xs:  12px;
  --fs-sm:  14px;
  --fs-md:  16px;
  --fs-lg:  18px;
  --fs-xl:  24px;
  --fs-2xl: 32px;
  --fs-3xl: 48px;
  --fs-4xl: 72px;
  --fs-5xl: 104px;

  /* Layout */
  --container: 1200px;
  --gutter: 24px;
  --radius: 2px;

  /* Motion */
  --ease: cubic-bezier(.2,.7,.2,1);
}

/* Reset */
*,*::before,*::after { box-sizing: border-box; }
html,body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 80px; }
body {
  font-family: var(--f-jp);
  color: var(--c-ink);
  background: var(--c-bg);
  font-size: var(--fs-md);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: .02em;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; margin: 0; }

/* Layout helpers */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: 120px 0; }
.section--tight { padding: 80px 0; }
.section--dark { background: var(--c-bg-dark); color: #fff; }
.section--soft { background: var(--c-bg-warm); }

/* =========================================================
   Header
   ========================================================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--c-bg-dark);
  color: #fff;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.header--on-dark { color: #fff; }
.header--scrolled {
  background: rgba(0,0,0,.92);
  backdrop-filter: blur(12px);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.header__logo {
  display: inline-block;
  position: relative;
  width: 64px;
  height: 24px;
  flex-shrink: 0;
}
.header__logo img {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
  height: 22px;
  width: auto;
  transition: opacity .3s var(--ease);
}
/* 常に黒背景なので白ロゴ */
.header__logo .logo--dark   { opacity: 0; }
.header__logo .logo--light  { opacity: 1; }
.header__nav { display: flex; gap: 32px; align-items: center; }
.header__nav a {
  font-family: var(--f-sans);
  font-size: var(--fs-sm);
  letter-spacing: .1em;
  position: relative;
}
.header__nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.header__nav a:hover::after { transform: scaleX(1); }
.header__cta {
  border: 1px solid currentColor;
  padding: 10px 20px;
  font-family: var(--f-sans);
  font-size: var(--fs-sm);
  letter-spacing: .1em;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.header__cta:hover { background: currentColor; }
.header__cta:hover > span { color: var(--c-bg-dark); }
.header--on-dark .header__cta:hover > span { color: #fff; filter: invert(1); }

.header__toggle {
  display: none;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  color: currentColor;
  padding: 0;
  position: relative;
  cursor: pointer;
}
.header__toggle span {
  display: block;
  height: 1.5px;
  background: currentColor;
  margin: 4px 0 4px auto;
  transition: width .3s var(--ease), transform .3s var(--ease), opacity .3s var(--ease);
}
.header__toggle span:nth-child(1) { width: 24px; }
.header__toggle span:nth-child(2) { width: 16px; }
.header__toggle span:nth-child(3) { width: 20px; }
.header__toggle:hover span { width: 24px; }
.header__nav.is-open ~ .header__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); width: 24px; }
.header__nav.is-open ~ .header__toggle span:nth-child(2) { opacity: 0; }
.header__nav.is-open ~ .header__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); width: 24px; }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  min-height: 100vh;
  background: var(--g-hero);
  color: var(--c-ink);
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero__watermark {
  position: absolute;
  bottom: -8%;
  right: -3%;
  width: 75%;
  max-width: 1100px;
  height: auto;
  opacity: .06;
  z-index: 0;
  pointer-events: none;
  user-select: none;
}
.hero__inner {
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero__eyebrow {
  font-family: var(--f-sans);
  letter-spacing: .25em;
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--c-ink);
  font-weight: 600;
  margin-bottom: 40px;
  text-transform: uppercase;
}
.hero__title {
  font-family: var(--f-jp);
  font-size: clamp(40px, 9vw, 132px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: 0 0 48px;
  max-width: 1100px;
}
.hero__sub {
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.9;
  letter-spacing: .04em;
  font-weight: 700;
  margin: 0 0 36px;
}
.hero__lead {
  font-size: var(--fs-md);
  line-height: 2;
  max-width: 520px;
  color: var(--c-ink-sub);
  margin: 0;
  letter-spacing: .03em;
}
.btn--hero {
  margin-top: 48px;
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.btn--hero:hover { background: #fff; color: var(--c-ink); }
.hero__meta {
  position: absolute;
  right: 32px;
  bottom: 32px;
  font-family: var(--f-sans);
  font-size: var(--fs-xs);
  letter-spacing: .2em;
  opacity: .6;
}

/* =========================================================
   Section heading
   ========================================================= */
.s-head { margin-bottom: 80px; }
.s-head__num {
  font-family: var(--f-sans);
  font-size: var(--fs-3xl);
  font-weight: 300;
  color: var(--c-ink-mute);
  line-height: 1;
}
.s-head__label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  margin-top: 8px;
  color: var(--c-ink-sub);
}
.s-head__title {
  font-size: var(--fs-2xl);
  font-weight: 700;
  margin: 12px 0 0;
  letter-spacing: .02em;
}

/* =========================================================
   About intro (Top)
   ========================================================= */
.about-intro {
  text-align: center;
}
.about-intro__catch {
  font-size: clamp(28px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .05em;
  margin: 0 0 40px;
}
.about-intro__text {
  max-width: 720px;
  margin: 0 auto;
  font-size: var(--fs-md);
  line-height: 2;
  color: var(--c-ink-sub);
}

/* =========================================================
   Framework 2軸
   ========================================================= */
.framework {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 60px;
}
.framework__col {
  padding: 56px 48px;
  border: 1px solid var(--c-line);
  background: var(--c-bg-warm);
  position: relative;
}
.framework__label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  color: var(--c-ink-mute);
}
.framework__title {
  font-size: var(--fs-xl);
  margin: 16px 0 32px;
}
.framework__list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: var(--fs-sm);
  color: var(--c-ink-sub);
}
.framework__list li:last-child { border-bottom: none; }

/* =========================================================
   Services
   ========================================================= */
.services {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
.services__item {
  background: var(--c-bg-warm);
  padding: 64px 56px;
}
.services__tag {
  display: inline-block;
  font-family: var(--f-sans);
  font-size: var(--fs-xs);
  letter-spacing: .2em;
  padding: 6px 12px;
  border: 1px solid var(--c-ink);
  margin-bottom: 24px;
}
.services__title {
  font-size: var(--fs-xl);
  margin: 0 0 8px;
}
.services__desc {
  color: var(--c-ink-sub);
  margin-bottom: 24px;
  font-size: var(--fs-sm);
}
.services__list li {
  font-size: var(--fs-sm);
  padding: 8px 0 8px 18px;
  position: relative;
  color: var(--c-ink-sub);
  line-height: 1.7;
}
.services__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 18px;
  width: 8px; height: 1px;
  background: var(--c-ink-mute);
}

/* =========================================================
   CTA band
   ========================================================= */
.cta-band {
  padding: 140px 0;
  background: var(--g-soft);
  text-align: center;
}
.cta-band__title {
  font-family: var(--f-jp);
  font-weight: 900;
  letter-spacing: -.01em;
}
.cta-band__title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  margin: 0 0 32px;
}
.cta-band__text {
  color: var(--c-ink-sub);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 2;
}
.btn {
  display: inline-block;
  padding: 18px 48px;
  border: 1px solid var(--c-accent);
  background: var(--c-accent);
  color: #fff;
  font-family: var(--f-sans);
  letter-spacing: .2em;
  font-size: var(--fs-sm);
  font-weight: 700;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.btn:hover { background: transparent; color: var(--c-accent); }
.btn--ghost { background: transparent; color: var(--c-ink); }
.btn--ghost:hover { background: var(--c-ink); color: #fff; }

/* =========================================================
   Company info (table style)
   ========================================================= */
.profile-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 40px;
}
.profile-table th,
.profile-table td {
  text-align: left;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-line);
  font-weight: 400;
  vertical-align: top;
  font-size: var(--fs-sm);
}
.profile-table th {
  width: 160px;
  color: var(--c-ink-mute);
  font-family: var(--f-sans);
  letter-spacing: .15em;
}

.approach__lead {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
  color: var(--c-ink-sub);
  line-height: 2;
  font-size: var(--fs-md);
}

/* Message */
.message {
  max-width: 820px;
  margin: 0 auto;
}
.message p {
  line-height: 2.2;
  color: var(--c-ink-sub);
  font-size: var(--fs-md);
  margin-bottom: 1.6em;
}
.message__sign {
  text-align: right;
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-ink-mute);
  margin-top: 48px;
}

/* =========================================================
   Form
   ========================================================= */
.form__intro {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
  color: var(--c-ink-sub);
  line-height: 2.1;
  font-size: var(--fs-md);
}
.framework__target {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
  padding: 28px 24px;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  color: var(--c-ink);
  font-size: var(--fs-sm);
  line-height: 2;
  letter-spacing: .03em;
}
.form { max-width: 720px; margin: 0 auto; }
.form__row { margin-bottom: 32px; }
.form__label {
  display: block;
  font-family: var(--f-sans);
  letter-spacing: .2em;
  font-size: var(--fs-xs);
  color: var(--c-ink-sub);
  margin-bottom: 10px;
}
.form__input,
.form__textarea {
  width: 100%;
  padding: 14px 0;
  border: none;
  border-bottom: 1px solid var(--c-line);
  font: inherit;
  background: transparent;
  transition: border-color .3s var(--ease);
}
.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-bottom-color: var(--c-ink);
}
.form__textarea { min-height: 160px; resize: vertical; }
.form__select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='none' stroke='%23111' stroke-width='1.5' d='M1 1l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 4px center;
  padding-right: 24px;
  cursor: pointer;
}
.form__submit { margin-top: 24px; }
.form__email {
  text-align: center;
  margin-top: 64px;
  font-size: var(--fs-lg);
  letter-spacing: .05em;
}
.form__email a { border-bottom: 1px solid currentColor; padding-bottom: 4px; }
.form__req,
.form__opt {
  display: inline-block;
  margin-left: 8px;
  font-size: 10px;
  letter-spacing: .15em;
  padding: 2px 8px;
  border-radius: 2px;
  vertical-align: middle;
}
.form__req { background: var(--c-ink); color: #fff; }
.form__opt { background: var(--c-line); color: var(--c-ink-sub); }

/* =========================================================
   Footer
   ========================================================= */
.footer {
  background: var(--c-bg-dark);
  color: #fff;
  padding: 80px 0 40px;
  position: relative;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer__brand { font-family: var(--f-sans); font-size: 32px; letter-spacing: .1em; font-weight: 700; margin-bottom: 16px; }
.footer__tag  { opacity: .6; font-size: var(--fs-sm); }
.footer__title {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  margin-bottom: 20px;
  opacity: .7;
}
.footer__links li { padding: 6px 0; font-size: var(--fs-sm); opacity: .85; }
.footer__links a:hover { opacity: .6; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-xs);
  opacity: .5;
  letter-spacing: .1em;
}

/* =========================================================
   Page hero (sub pages)
   ========================================================= */
.page-hero {
  padding: 180px 0 100px;
  background: var(--g-soft);
}
.page-hero__num {
  font-family: var(--f-sans);
  font-size: clamp(80px, 14vw, 200px);
  font-weight: 700;
  line-height: .9;
  color: var(--c-ink);
}
.page-hero__label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  margin-top: 20px;
  color: var(--c-ink-sub);
  font-size: var(--fs-sm);
}
.page-hero__title {
  font-size: var(--fs-3xl);
  margin-top: 12px;
}

/* =========================================================
   Story flow — narrative elements
   ========================================================= */

/* セクション間の橋渡しコピー（小さな問いかけ） */
.bridge {
  text-align: center;
  padding: 80px 0 0;
}
.bridge__mark {
  display: inline-block;
  width: 1px;
  height: 64px;
  background: var(--c-ink-mute);
  margin-bottom: 32px;
}
.bridge__text {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-ink-sub);
}

/* スクロールヒント（hero下部） */
.scroll-hint {
  position: absolute;
  right: 40px;
  bottom: 40px;
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  color: var(--c-ink-sub);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
}
.scroll-hint::after {
  content: "";
  width: 1px;
  height: 40px;
  background: currentColor;
  animation: scrollLine 2.4s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 大きな宣言（理念） */
.statement {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--g-soft);
  padding: 140px 0;
}
.statement__lead {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 700;
  margin-bottom: 40px;
}
.statement__title {
  font-family: var(--f-jp);
  font-size: clamp(40px, 7vw, 92px);
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 48px;
  letter-spacing: -.01em;
}
.statement__text {
  max-width: 560px;
  margin: 0 auto;
  color: var(--c-ink-sub);
  line-height: 2;
}

/* OPENER（初期表示の演出） */
.is-loading { overflow: hidden; }
.opener {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--c-bg-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  animation: openerExit 1.2s cubic-bezier(.7,0,.3,1) 2.4s forwards;
}
.opener__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  animation: openerInnerOut .6s cubic-bezier(.7,0,.3,1) 2.4s forwards;
}
.opener__moon {
  width: 88px;
  height: 88px;
  opacity: 0;
  transform: scale(.6) rotate(-90deg);
  animation: moonIn 1.4s cubic-bezier(.2,.8,.2,1) .2s forwards,
             moonFloat 4s ease-in-out 1.6s infinite;
}
.opener__brand {
  height: 36px;
  width: auto;
  display: block;
  opacity: 0;
  transform: translateY(8px);
  animation: textIn .8s cubic-bezier(.2,.8,.2,1) 1s forwards;
}
.opener__tag {
  font-family: var(--f-sans);
  font-size: 11px;
  letter-spacing: .35em;
  text-align: center;
  color: rgba(255,255,255,.7);
  margin: 0;
  line-height: 1.8;
  opacity: 0;
  animation: textIn .8s cubic-bezier(.2,.8,.2,1) 1.4s forwards;
}
@keyframes moonIn {
  0%   { opacity: 0; transform: scale(.6) rotate(-90deg); }
  100% { opacity: 1; transform: scale(1) rotate(0deg); }
}
@keyframes moonFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
@keyframes textIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes openerInnerOut {
  to { opacity: 0; transform: translateY(-30px); }
}
@keyframes openerExit {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-100%); }
}

/* INTRO セクション（TOPの短いブランドメッセージ） */
.intro {
  padding: 140px 0;
  text-align: center;
  background: var(--g-soft);
}
.intro__text {
  max-width: 880px;
  margin: 0 auto;
  font-size: clamp(20px, 2.6vw, 32px);
  line-height: 1.9;
  letter-spacing: -.005em;
  color: var(--c-ink);
  font-weight: 700;
}
.intro__text strong {
  font-weight: 900;
  background: linear-gradient(transparent 65%, #ff2d8b 65%);
}

/* NAV CARDS（TOPの4導線） */
.nav-cards {
  padding: 100px 0 140px;
  background: var(--c-bg);
}
.nav-cards__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}
.nav-card {
  display: flex;
  flex-direction: column;
  background: var(--c-bg);
  padding: 64px 56px 80px;
  position: relative;
  transition: background .3s var(--ease), color .3s var(--ease);
  min-height: 320px;
  overflow: hidden;
}
.nav-card > * { position: relative; z-index: 1; }
.nav-card__num { z-index: 0; }
.nav-card:hover {
  background: var(--c-bg-warm);
}
.nav-card__num {
  position: absolute;
  top: 32px;
  right: 32px;
  font-family: var(--f-sans);
  font-size: clamp(48px, 5vw, 72px);
  font-weight: 900;
  color: var(--c-bg-warm);
  letter-spacing: -.04em;
  line-height: 1;
  z-index: 0;
}
.nav-card__label {
  font-family: var(--f-sans);
  font-size: var(--fs-sm);
  letter-spacing: .35em;
  color: var(--c-accent, var(--c-ink));
  font-weight: 700;
  margin-bottom: 24px;
}
.nav-card__title {
  font-family: var(--f-jp);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -.01em;
  margin: 0 0 20px;
}
.nav-card__text {
  font-size: var(--fs-sm);
  line-height: 2;
  color: var(--c-ink-sub);
  flex-grow: 1;
}
.nav-card__more {
  position: absolute;
  bottom: 32px;
  right: 32px;
  font-family: var(--f-sans);
  font-size: var(--fs-lg);
  color: var(--c-accent, var(--c-ink));
  transition: transform .3s var(--ease);
}
.nav-card:hover .nav-card__more {
  transform: translateX(8px);
}

@media (max-width: 900px) {
  .nav-cards__grid { grid-template-columns: 1fr; }
  .nav-card { padding: 48px 24px 64px; min-height: 220px; }
}

/* セクションアンカー（ABOUT / SERVICES の到達ラベル） */
.section-anchor {
  text-align: center;
  margin-bottom: 100px;
}
.section-anchor__label {
  font-family: var(--f-sans);
  letter-spacing: .5em;
  font-size: clamp(20px, 2.6vw, 32px);
  font-weight: 700;
  color: var(--c-accent);
  display: inline-block;
}
.section-anchor__rule {
  width: 64px;
  height: 1px;
  background: var(--c-accent);
  margin: 32px auto 0;
}

/* ABOUT 自己紹介セクション */
.about-lead {
  padding: 160px 0;
  text-align: center;
  background: var(--c-bg);
}
.about-lead__eyebrow {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-accent);
  font-weight: 700;
  margin-bottom: 32px;
}
.about-lead__title {
  font-family: var(--f-jp);
  font-size: clamp(32px, 5.5vw, 68px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin: 0 0 56px;
}
.about-lead__text {
  max-width: 760px;
  margin: 0 auto;
  color: var(--c-ink-sub);
  line-height: 2.1;
  font-size: var(--fs-md);
}
@media (max-width: 900px) {
  .about-lead { padding: 100px 0; }
  .about-lead__title { font-size: clamp(22px, 5.5vw, 32px); }
}

/* 問題提起セクション */
.problem {
  padding: 160px 0;
}
.problem__lead {
  max-width: 720px;
  margin: 0 auto 60px;
  text-align: center;
}
.problem__question {
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.7;
  margin: 0 0 32px;
  letter-spacing: .03em;
}
.problem__desc {
  color: var(--c-ink-sub);
  line-height: 2;
}
.problem__bridge {
  text-align: center;
  margin: 0 auto 40px;
  color: var(--c-ink-sub);
  font-size: var(--fs-sm);
  letter-spacing: .05em;
}
.problem__list {
  max-width: 640px;
  margin: 0 auto;
}
.problem__list li {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-ink-sub);
  font-size: var(--fs-sm);
}
.problem__list li::before {
  content: "—";
  color: var(--c-ink-mute);
}
.problem__conclusion {
  margin-top: 60px;
  text-align: center;
  font-size: var(--fs-lg);
  font-weight: 700;
}

/* アプローチ見出し（章開始） */
.chapter {
  text-align: center;
  margin-bottom: 80px;
}
.chapter__num {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  color: var(--c-accent);
  font-weight: 700;
  margin-bottom: 20px;
}
.chapter__title {
  font-family: var(--f-jp);
  font-size: clamp(28px, 5vw, 60px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin: 0;
}
.chapter--dark .chapter__num,
.chapter--dark .chapter__title { color: #fff; }

/* 方法論セクション（行動/感情） */
.method {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--c-line);
  margin-top: 60px;
}
.method__col {
  padding: 64px 56px;
  background: var(--c-bg-warm);
}
.method__label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  color: var(--c-ink-mute);
  margin-bottom: 12px;
}
.method__title {
  font-size: var(--fs-xl);
  margin: 0 0 24px;
}
.method__list li {
  padding: 10px 0;
  font-size: var(--fs-sm);
  color: var(--c-ink-sub);
}
.method__punch {
  text-align: center;
  font-size: var(--fs-xl);
  font-weight: 700;
  margin: 60px 0 0;
  letter-spacing: .08em;
  color: var(--c-accent);
}

/* CASE セクション --------------------------------------------- */
.cases {
  display: grid;
  gap: 32px;
  max-width: 920px;
  margin: 60px auto 0;
}
.case {
  background: var(--c-bg-warm);
  padding: 64px 56px;
  border: 1px solid var(--c-line);
}
.case__head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.case__label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-ink-mute);
}
.case__title {
  font-size: var(--fs-xl);
  margin: 0;
  font-weight: 700;
}
.case__flow { display: grid; gap: 20px; }
.case__step {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  align-items: start;
}
.case__step-label {
  font-family: var(--f-sans);
  letter-spacing: .25em;
  font-size: var(--fs-xs);
  color: var(--c-ink-mute);
  padding-top: 6px;
}
.case__step-text {
  color: var(--c-ink-sub);
  line-height: 1.9;
  font-size: var(--fs-sm);
}
.case__punch {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  align-items: baseline;
}
.case__punch-label {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-xs);
  color: var(--c-ink);
}
.case__punch-text {
  font-weight: 700;
  font-size: var(--fs-md);
  letter-spacing: .03em;
  color: var(--c-accent);
}
.cases-closing {
  text-align: center;
  font-size: var(--fs-lg);
  margin-top: 80px;
  font-weight: 700;
  letter-spacing: .03em;
}

@media (max-width: 900px) {
  .case { padding: 32px 24px; }
  .case__step, .case__punch { grid-template-columns: 1fr; gap: 8px; }
  .case__punch { padding-top: 20px; margin-top: 24px; }
}

/* 数字セクション（実績） */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 60px;
}
.stats__item {
  text-align: center;
}
.stats__num {
  font-family: var(--f-sans);
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.stats__num small {
  font-size: 40%;
  font-weight: 400;
  margin-left: 6px;
}
.stats__label {
  font-family: var(--f-sans);
  letter-spacing: .2em;
  font-size: var(--fs-xs);
  color: var(--c-ink-mute);
  margin-bottom: 8px;
}
.stats__desc {
  font-size: var(--fs-sm);
  color: var(--c-ink-sub);
}

/* メッセージ・プレビュー（短縮版） */
.msg-preview {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.msg-preview__text {
  font-size: var(--fs-lg);
  line-height: 2.2;
  color: var(--c-ink-sub);
  margin-bottom: 40px;
}
.msg-preview__sign {
  font-family: var(--f-sans);
  letter-spacing: .3em;
  font-size: var(--fs-sm);
  color: var(--c-ink-mute);
  margin: 32px 0 24px;
}
.msg-preview__more {
  font-family: var(--f-sans);
  letter-spacing: .2em;
  font-size: var(--fs-sm);
  border-bottom: 1px solid currentColor;
  padding-bottom: 4px;
}

@media (max-width: 900px) {
  .method { grid-template-columns: 1fr; }
  .method__col { padding: 40px 24px; }
  .stats { grid-template-columns: 1fr; gap: 64px; }
  .problem { padding: 100px 0; }
  .statement { min-height: auto; padding: 100px 0; }
}

/* =========================================================
   Background massive label — 各セクションの裏に大型英字
   ========================================================= */
.bg-label {
  position: absolute;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: clamp(140px, 22vw, 320px);
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(0,0,0,.035);
  pointer-events: none;
  user-select: none;
  z-index: 0;
  white-space: nowrap;
}
.bg-label--right { right: -2%; bottom: -8%; }
.bg-label--left  { left: -2%; bottom: -6%; }
.bg-label--top-right { right: -2%; top: -4%; }
.bg-label--center { left: 50%; top: 50%; transform: translate(-50%, -50%); }

/* =========================================================
   Moon decoration — 月ロゴを装飾モチーフとして
   ========================================================= */
.moon-deco {
  position: absolute;
  width: 64px;
  height: 64px;
  opacity: .12;
  pointer-events: none;
  z-index: 0;
  animation: moonFloatSlow 10s ease-in-out infinite;
}
.moon-deco--lg { width: 120px; height: 120px; opacity: .08; }
.moon-deco--sm { width: 40px; height: 40px; opacity: .18; }
@keyframes moonFloatSlow {
  0%,100% { transform: translateY(0) rotate(0); }
  50%     { transform: translateY(-12px) rotate(5deg); }
}

/* =========================================================
   Light ray animation — 光線が走る演出
   ========================================================= */
.light-ray {
  position: absolute;
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(0,0,0,.15) 30%, rgba(0,0,0,.25) 50%, rgba(0,0,0,.15) 70%, transparent 100%);
  pointer-events: none;
  transform: translateX(-100%);
  animation: rayMove 8s ease-in-out infinite;
}
.light-ray:nth-child(2) { animation-delay: 3s; opacity: .5; }
@keyframes rayMove {
  0%   { transform: translateX(-100%); opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateX(100%); opacity: 0; }
}

/* セクション位置取り */
.intro, .about-lead, .problem, .statement, .nav-cards,
.section, .cta-band, .hero { position: relative; overflow: hidden; }

/* 内部要素は前面に */
.intro > .container,
.about-lead > .container,
.problem > .container,
.statement > .container,
.section > .container,
.cta-band > .container,
.nav-cards > .container,
.hero > .container { position: relative; z-index: 1; }

/* =========================================================
   Section glows — ラディアントな光のレイヤー
   ========================================================= */
.intro {
  background:
    radial-gradient(60% 50% at 80% 20%, rgba(232,220,255,.7) 0%, transparent 60%),
    radial-gradient(50% 40% at 10% 90%, rgba(220,228,255,.7) 0%, transparent 60%),
    var(--g-soft);
}
.about-lead {
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(245,233,255,.6) 0%, transparent 70%),
    var(--c-bg);
}
.problem {
  background:
    radial-gradient(50% 40% at 100% 30%, rgba(220,228,255,.4) 0%, transparent 60%),
    var(--c-bg);
}
.statement {
  background:
    radial-gradient(60% 60% at 50% 50%, rgba(232,220,255,.85) 0%, rgba(245,233,255,.6) 50%, transparent 90%),
    var(--g-soft);
}
.section.section--soft {
  background:
    radial-gradient(70% 50% at 30% 30%, rgba(220,228,255,.5) 0%, transparent 70%),
    radial-gradient(60% 50% at 80% 80%, rgba(245,233,255,.5) 0%, transparent 70%),
    var(--g-soft);
}
.cta-band {
  background:
    radial-gradient(80% 60% at 50% 100%, rgba(232,220,255,.7) 0%, transparent 70%),
    var(--g-soft);
}
.nav-cards {
  background:
    radial-gradient(50% 40% at 100% 0%, rgba(245,233,255,.4) 0%, transparent 60%),
    var(--c-bg);
}

/* =========================================================
   Reveal animation — ふわっと、より滑らかに
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  filter: blur(6px);
  transition:
    opacity 1.4s cubic-bezier(.2,.7,.2,1),
    transform 1.4s cubic-bezier(.2,.7,.2,1),
    filter 1.4s cubic-bezier(.2,.7,.2,1);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
  filter: blur(0);
}
/* 連続要素の段階遅延 */
.reveal:nth-of-type(2) { transition-delay: .12s; }
.reveal:nth-of-type(3) { transition-delay: .24s; }
.reveal:nth-of-type(4) { transition-delay: .36s; }
.reveal:nth-of-type(5) { transition-delay: .48s; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px) {
  :root { --gutter: 28px; }
  .section { padding: 80px 0; }
  .header { padding: 18px 24px; }
  /* モバイルでは長い本文の<br>を無効化して自然折り返しに */
  .hero__lead br,
  .intro__text br,
  .statement__text br,
  .problem__desc br,
  .about-lead__text br,
  .about-intro__text br,
  .approach__lead br,
  .form__intro br,
  .case__step-text br,
  .nav-card__text br,
  .framework__target br { display: none; }
  .hero__title {
    font-size: clamp(32px, 9.5vw, 48px);
    line-height: 1.3;
    letter-spacing: -.02em;
  }
  .hero__eyebrow { margin-bottom: 24px; font-size: var(--fs-xs); letter-spacing: .2em; }
  .hero__lead { font-size: var(--fs-md); }
  .chapter__title { font-size: clamp(22px, 5.5vw, 32px) !important; }
  .statement__title { font-size: clamp(32px, 8vw, 56px); letter-spacing: .02em; }
  .problem__question, .problem__conclusion { font-size: var(--fs-lg); }
  .msg-preview__text { font-size: var(--fs-md); line-height: 2; }
  .stats__num { font-size: clamp(40px, 14vw, 64px); }
  .header__nav {
    position: fixed;
    inset: 0;
    background: var(--c-bg-dark);
    color: #fff;
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform .4s var(--ease);
  }
  .header__nav.is-open { transform: none; }
  .header__toggle { display: block; z-index: 101; position: relative; }
  .framework,
  .services,
  .footer__inner { grid-template-columns: 1fr; }
  .services { gap: 1px; }
  .services__item { padding: 40px 24px; }
  .framework__col { padding: 32px 24px; }
  .footer__bottom { flex-direction: column; gap: 8px; }
  .hero__inner { padding-top: 100px; padding-bottom: 60px; }
  .s-head { margin-bottom: 48px; }
  .profile-table th { width: 110px; }
}