/* ============================================================
   SANZU — Opportunity Engine
   style.css  (Dark Editorial / Premium Brand Edition)
   ------------------------------------------------------------
   黒・深いネイビー・白・グレー・薄いゴールド。
   余白と英字タイポグラフィを軸にした体験型ブランドサイト。
   ============================================================ */

/* ── 1. Design Tokens ─────────────────────────────────────── */
:root {
  /* Canvas */
  --bg:          #07090f;                     /* deep navy black */
  --bg-deep:     #04060b;
  --bg-panel:    #0b101a;
  --bg-panel-2:  #0e1420;

  /* Ink */
  --ink:         #f2f1ec;                     /* warm white */
  --ink-soft:    #b9bdc6;
  --ink-muted:   #7e8492;
  --ink-faint:   #4c5260;

  /* Gold (pale, never yellow) */
  --gold:        #c8a96a;
  --gold-soft:   #e2cb98;
  --gold-dim:    rgba(200, 169, 106, 0.38);
  --gold-wash:   rgba(200, 169, 106, 0.07);

  /* Hairlines */
  --line:        rgba(242, 241, 236, 0.08);
  --line-strong: rgba(242, 241, 236, 0.18);

  /* Glow */
  --glow-navy:   rgba(64, 96, 158, 0.14);
  --glow-gold:   rgba(200, 169, 106, 0.06);

  --nav-height:  72px;

  --ff-base:  'Inter', -apple-system, BlinkMacSystemFont, 'Hiragino Sans',
              'Hiragino Kaku Gothic ProN', 'Noto Sans JP', 'Yu Gothic', sans-serif;
  --ff-serif: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;

  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ── 2. Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--ff-base);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

::selection { background: rgba(200, 169, 106, 0.28); color: var(--ink); }

/* Film grain — the quiet texture that removes the "flat template" look */
body::after {
  content: '';
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  z-index: 3000;
  pointer-events: none;
  opacity: 0.038;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── 3. Typography ────────────────────────────────────────── */
.t-display {
  font-size: clamp(2.55rem, 11.5vw, 6.75rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
  color: var(--ink);
}

.t-h1 {
  font-size: clamp(2.2rem, 8.5vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--ink);
}

.t-h2 {
  font-size: clamp(1.7rem, 5.5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--ink);
}

.t-h3 {
  font-size: clamp(1.2rem, 3.2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--ink);
}

.t-body {
  font-size: clamp(0.9rem, 2.2vw, 0.9875rem);
  line-height: 2.1;
  color: var(--ink-soft);
}

.t-serif {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  letter-spacing: 0;
}

/* EN kicker — thin gold label with a hairline */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--gold);
}

.kicker::before {
  content: '';
  width: 34px;
  height: 1px;
  background: var(--gold-dim);
  flex-shrink: 0;
}

.kicker--bare::before { display: none; }

/* JP sub line under English headings */
.jp-sub {
  font-size: clamp(0.9rem, 2.6vw, 1.05rem);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-weight: 400;
}

/* ── 4. Layout ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 768px)  { .container { padding: 0 48px; } }
@media (min-width: 1280px) { .container { padding: 0 56px; } }

.section {
  position: relative;
  padding: 110px 0;
}

@media (min-width: 768px) {
  .section { padding: 170px 0; }
}

.section--hairline { border-top: 1px solid var(--line); }

.section-head { margin-bottom: 60px; }

@media (min-width: 768px) {
  .section-head { margin-bottom: 96px; }
}

.section-head .kicker { margin-bottom: 26px; }
.section-head .t-h2   { margin-bottom: 18px; }

/* ── 5. Buttons ───────────────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 58px;
  padding: 0 30px;
  border: 1px solid var(--line-strong);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  transition: border-color 0.4s var(--ease-out), color 0.4s var(--ease-out),
              background 0.4s var(--ease-out);
}

.btn::after {
  content: '\2192';                /* → */
  font-size: 0.9rem;
  letter-spacing: 0;
  color: var(--gold);
  transition: transform 0.4s var(--ease-out);
}

.btn:hover {
  border-color: var(--gold-dim);
  color: var(--gold-soft);
  background: var(--gold-wash);
}

.btn:hover::after { transform: translateX(6px); }

.btn--solid {
  background: var(--ink);
  border-color: var(--ink);
  color: #0a0d14;
}

.btn--solid::after { color: #0a0d14; }

.btn--solid:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: #0a0d14;
}

.btn--block { width: 100%; }

/* Text-only arrow link */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  transition: gap 0.35s var(--ease-out), color 0.3s;
}

.arrow-link::after { content: '\2192'; }
.arrow-link:hover  { gap: 22px; color: var(--gold-soft); }

/* ── 6. Loader ────────────────────────────────────────────── */
.loader {
  position: fixed;
  inset: 0;
  z-index: 4000;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
}

html.js .loader {
  opacity: 1;
  visibility: visible;
}

html.js .loader.done {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s var(--ease-in-out), visibility 0s 0.65s;
}

.loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader__name {
  font-size: clamp(1.7rem, 7vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.5em;
  margin-right: -0.5em;          /* optical centering */
  color: var(--ink);
  opacity: 0;
  animation: loaderFade 0.9s var(--ease-out) 0.08s forwards;
}

.loader__line {
  width: 120px;
  height: 1px;
  background: var(--gold-dim);
  transform: scaleX(0);
  animation: loaderLine 0.8s var(--ease-in-out) 0.28s forwards;
}

.loader__tag {
  font-size: 0.6875rem;
  letter-spacing: 0.4em;
  margin-right: -0.4em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0;
  animation: loaderFade 0.8s var(--ease-out) 0.42s forwards;
}

@keyframes loaderFade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes loaderLine {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* While the loader is up, hold the page still (JS有効時のみ) */
html.js body.is-loading { overflow: hidden; }

/* ── 7. Header ────────────────────────────────────────────── */
.site-head {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background 0.5s var(--ease-out), border-color 0.5s;
  border-bottom: 1px solid transparent;
}

.site-head.scrolled {
  background: rgba(4, 6, 11, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.site-head__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-head__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

/* Brand logo rendered as monochrome white on dark canvas */
.site-head__logo img {
  height: 22px;
  width: auto;
  max-width: 130px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

.site-head__logo-jp {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  white-space: nowrap;
  padding-left: 12px;
  border-left: 1px solid var(--line-strong);
}

@media (max-width: 420px) {
  .site-head__logo-jp { display: none; }
}

.site-head__links {
  display: none;
  align-items: center;
  gap: 44px;
}

@media (min-width: 900px) {
  .site-head__links { display: flex; }
}

.site-head__link {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.3;
  padding: 4px 0;
}

.site-head__link-en {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 0.3s;
}

.site-head__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--gold-dim);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.site-head__link:hover .site-head__link-en,
.site-head__link.active .site-head__link-en { color: var(--gold-soft); }

.site-head__link:hover::after,
.site-head__link.active::after { transform: scaleX(1); }

.site-head__cta {
  display: none;
  min-height: 42px;
  padding: 0 22px;
  gap: 16px;
  font-size: 0.6875rem;
}

@media (min-width: 900px) {
  .site-head__cta { display: inline-flex; }
}

/* Menu button */
.menu-btn {
  position: relative;
  z-index: 1200;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 2px;
}

@media (min-width: 900px) {
  .menu-btn { display: none; }
}

.menu-btn__label {
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-soft);
  transition: color 0.3s;
}

.menu-btn__icon {
  position: relative;
  width: 26px;
  height: 12px;
}

.menu-btn__icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transition: transform 0.45s var(--ease-in-out), top 0.45s var(--ease-in-out),
              width 0.3s var(--ease-out);
}

.menu-btn__icon span:nth-child(1) { top: 0; }
.menu-btn__icon span:nth-child(2) { top: 11px; width: 66%; }

.menu-btn:hover .menu-btn__icon span { width: 100%; }

.menu-btn.open .menu-btn__icon span:nth-child(1) { top: 5.5px; transform: rotate(45deg); width: 100%; }
.menu-btn.open .menu-btn__icon span:nth-child(2) { top: 5.5px; transform: rotate(-45deg); width: 100%; }

/* ── 8. Fullscreen Menu ───────────────────────────────────── */
.menu {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background:
    radial-gradient(ellipse 90% 60% at 80% 0%, var(--glow-navy) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 10% 100%, var(--glow-gold) 0%, transparent 60%),
    var(--bg-deep);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-height) + 24px) 28px 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease-in-out), visibility 0s 0.5s;
}

.menu.open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.5s var(--ease-in-out);
}

.menu__list {
  display: flex;
  flex-direction: column;
}

.menu__item {
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.menu.open .menu__item {
  opacity: 1;
  transform: translateY(0);
}

.menu.open .menu__item:nth-child(1) { transition-delay: 0.10s; }
.menu.open .menu__item:nth-child(2) { transition-delay: 0.17s; }
.menu.open .menu__item:nth-child(3) { transition-delay: 0.24s; }
.menu.open .menu__item:nth-child(4) { transition-delay: 0.31s; }
.menu.open .menu__item:nth-child(5) { transition-delay: 0.38s; }

.menu__link {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 22px 4px;
}

.menu__num {
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  font-weight: 500;
  min-width: 30px;
}

.menu__en {
  font-size: clamp(1.9rem, 8vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
  transition: color 0.3s;
}

.menu__jp {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-left: auto;
  white-space: nowrap;
}

.menu__link:active .menu__en,
.menu__link:hover .menu__en { color: var(--gold-soft); }

.menu__foot {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out) 0.45s, transform 0.6s var(--ease-out) 0.45s;
}

.menu.open .menu__foot {
  opacity: 1;
  transform: translateY(0);
}

.menu__foot-label {
  font-size: 0.625rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 4px;
}

.menu__foot a {
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

/* ── 9. Hero ──────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-deep);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 85% 65% at 78% -10%, rgba(52, 82, 140, 0.22) 0%, transparent 62%),
    radial-gradient(ellipse 60% 50% at 12% 110%, rgba(200, 169, 106, 0.08) 0%, transparent 58%),
    radial-gradient(ellipse 45% 40% at 90% 85%, rgba(38, 56, 96, 0.18) 0%, transparent 60%),
    linear-gradient(175deg, #05070d 0%, #070a12 55%, #04060b 100%);
  pointer-events: none;
}

/* Vertical hairlines — architectural grid */
.hero__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(242, 241, 236, 0.045) 1px, transparent 1px);
  background-size: 25% 100%;
  background-position: -1px 0;
  mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 82%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 18%, #000 82%, transparent 100%);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Black veil — lifts as the loader releases (光が開く) */
.hero__veil {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: var(--bg-deep);
  opacity: 0;
  pointer-events: none;
}

html.js .hero__veil { opacity: 1; }

html.js .hero.open .hero__veil {
  opacity: 0;
  transition: opacity 1.2s var(--ease-in-out);
}

/* Background light opens slightly wider on entrance */
html.js .hero__bg {
  transform: scale(1.06);
  transform-origin: 50% 30%;
}

html.js .hero.open .hero__bg {
  transform: scale(1);
  transition: transform 2.6s var(--ease-out);
}

/* Mouse-follow light orb (desktop only, JS-driven) */
.hero__orb {
  position: absolute;
  width: 46vw;
  height: 46vw;
  max-width: 620px;
  max-height: 620px;
  left: 50%;
  top: 40%;
  margin: -23vw 0 0 -23vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 169, 106, 0.05) 0%, rgba(64, 96, 158, 0.05) 40%, transparent 68%);
  pointer-events: none;
  will-change: transform;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 110px;
}

.hero .kicker { margin-bottom: 34px; }

.hero__title {
  margin-bottom: 30px;
  max-width: 13em;
}

.hero__title em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--gold-soft);
  padding-right: 0.06em;
}

.hero__jp {
  font-size: clamp(0.95rem, 3vw, 1.15rem);
  letter-spacing: 0.14em;
  color: var(--ink);
  margin-bottom: 20px;
  font-weight: 500;
}

.hero__desc {
  max-width: 480px;
  font-size: clamp(0.8125rem, 2.4vw, 0.9rem);
  line-height: 2.15;
  color: var(--ink-muted);
  margin-bottom: 52px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero__actions .btn { min-width: 210px; }

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: stretch; max-width: 340px; }
}

/* Staged entrance (delays extended so the loader finishes first) */
.hero__stage {
  opacity: 0;
  transform: translateY(26px);
  animation: heroIn 1s var(--ease-out) forwards;
}

.hero__stage--1 { animation-delay: 1.15s; }
.hero__stage--2 { animation-delay: 1.3s; }
.hero__stage--3 { animation-delay: 1.5s; }
.hero__stage--4 { animation-delay: 1.65s; }
.hero__stage--5 { animation-delay: 1.8s; }

@keyframes heroIn {
  from { opacity: 0; transform: translateY(18px); filter: blur(7px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* Hero kicker — tracking settles as the light opens */
html.js .hero .kicker {
  letter-spacing: 0.52em;
  transition: letter-spacing 2s var(--ease-out) 0.15s;
}

html.js .hero.open .kicker { letter-spacing: 0.34em; }

/* ── Kinetic Typography (char split) ─────────────────────── */
.k-word {
  display: inline-block;
  white-space: nowrap;   /* 単語の途中では折り返さない */
}

.k-char {
  display: inline-block;
  will-change: transform, opacity, filter;
}

[data-kinetic] .k-char {
  opacity: 0;
  transform: translateY(0.32em);
  filter: blur(10px);
}

[data-kinetic].k-in .k-char {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out),
    filter 0.8s var(--ease-out);
  transition-delay: calc(var(--ci, 0) * 26ms);
}

.hero__scroll {
  position: absolute;
  bottom: 34px;
  left: 24px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  opacity: 0;
  animation: heroFadeIn 1.2s var(--ease-out) 2.3s forwards;
}

@media (min-width: 768px) {
  .hero__scroll { left: 48px; }
}

.hero__scroll span {
  font-size: 0.625rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.hero__scroll-line {
  width: 56px;
  height: 1px;
  background: var(--line-strong);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold);
  transform: translateX(-100%);
  animation: scrollSweep 2.4s var(--ease-in-out) infinite;
}

@keyframes scrollSweep {
  0%   { transform: translateX(-100%); }
  55%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

@keyframes heroFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── 10. Statement (Manifesto) ───────────────────────────── */
.statement {
  background:
    radial-gradient(ellipse 70% 55% at 15% 10%, rgba(52, 82, 140, 0.10) 0%, transparent 60%),
    var(--bg);
}

.statement__lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 48px;
}

.statement__line {
  font-size: clamp(1.45rem, 5.8vw, 3.1rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
  color: var(--ink);
}

.statement__line em {
  font-style: normal;
  color: var(--gold-soft);
}

.statement__body {
  max-width: 560px;
  margin-bottom: 48px;
}

/* ── 11. Scroll Story ─────────────────────────────────────── */
.story {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding: 0;
}

.story__intro {
  padding: 110px 0 40px;
}

@media (min-width: 768px) {
  .story__intro { padding: 170px 0 60px; }
}

.story__chapter {
  position: relative;
  min-height: 78svh;
  display: flex;
  align-items: center;
  border-top: 1px solid var(--line);
  overflow: hidden;
}

@media (min-width: 768px) {
  .story__chapter { min-height: 92svh; }
}

/* Ghost chapter number */
.story__ghost {
  position: absolute;
  top: 50%;
  right: -4%;
  transform: translateY(-50%);
  font-size: clamp(11rem, 42vw, 24rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(242, 241, 236, 0.06);
  pointer-events: none;
  user-select: none;
}

.story__chapter:nth-child(odd) .story__ghost { right: auto; left: -4%; }

/* Faint glow that alternates side */
.story__chapter::before {
  content: '';
  position: absolute;
  width: 60vw;
  height: 60vw;
  max-width: 640px;
  max-height: 640px;
  border-radius: 50%;
  top: 50%;
  right: -20vw;
  transform: translateY(-50%);
  background: radial-gradient(circle, var(--glow-navy) 0%, transparent 68%);
  pointer-events: none;
}

.story__chapter:nth-child(odd)::before {
  right: auto;
  left: -20vw;
  background: radial-gradient(circle, var(--glow-gold) 0%, transparent 68%);
}

.story__inner {
  position: relative;
  z-index: 1;
  padding: 96px 0;
  max-width: 640px;
}

.story__index {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 30px;
}

.story__index-num {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  font-weight: 500;
}

.story__index-line {
  width: 44px;
  height: 1px;
  background: var(--gold-dim);
}

.story__index-cat {
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.story__en {
  font-size: clamp(2.2rem, 9.5vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--ink);
  margin-bottom: 22px;
}

.story__copy {
  font-size: clamp(1.1rem, 3.6vw, 1.5rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
  margin-bottom: 22px;
}

.story__text {
  max-width: 480px;
  font-size: 0.875rem;
  line-height: 2.15;
  color: var(--ink-muted);
}

/* ── 12. Sanzu Orbit Engine (Business Map) ────────────────── */
/* スクロールで展開し、静かに軌道回転する精密機械のような演出 */
.orbit {
  position: relative;
  background:
    radial-gradient(ellipse 60% 50% at 50% 45%, rgba(52, 82, 140, 0.12) 0%, transparent 65%),
    var(--bg);
  border-top: 1px solid var(--line);
  height: 280svh;                 /* スクラブ領域 */
  padding: 0;
}

.orbit__sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.orbit__head { margin-bottom: 10px; }
.orbit__head .kicker { justify-content: center; }
.orbit__head .t-h2 { margin-top: 18px; }

.orbit__stage {
  position: relative;
  width: min(88vw, 540px);
  height: min(88vw, 54svh, 540px);
  margin: 14px auto 0;
}

@media (max-width: 767px) {
  .orbit__stage {
    width: 88vw;
    height: min(122vw, 52svh);   /* スマホは縦長の軌道 */
  }
}

.orbit__canvas {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Core */
.orbit__core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: clamp(108px, 30vw, 148px);
  height: clamp(108px, 30vw, 148px);
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 38%, rgba(200, 169, 106, 0.10) 0%, rgba(11, 16, 26, 0.92) 62%);
  box-shadow:
    0 0 44px rgba(200, 169, 106, 0.10),
    inset 0 0 30px rgba(4, 6, 11, 0.6);
  animation: coreBreathe 7s var(--ease-in-out) infinite alternate;
}

@keyframes coreBreathe {
  from { box-shadow: 0 0 34px rgba(200, 169, 106, 0.07), inset 0 0 30px rgba(4, 6, 11, 0.6); }
  to   { box-shadow: 0 0 58px rgba(200, 169, 106, 0.16), inset 0 0 30px rgba(4, 6, 11, 0.6); }
}

/* Fine tick ring — 時計のような精密さ */
.orbit__core::before {
  content: '';
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  border: 1px dashed rgba(200, 169, 106, 0.18);
}

.orbit__core-name {
  font-size: clamp(1rem, 4vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.3em;
  margin-right: -0.3em;
  color: var(--ink);
}

.orbit__core-sub {
  font-size: 0.5rem;
  letter-spacing: 0.26em;
  margin-right: -0.26em;
  text-transform: uppercase;
  color: var(--gold);
  margin-top: 4px;
}

/* Nodes */
.orbit__node {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 6px;
  opacity: 0;
  transform: translate(-50%, -50%);
  will-change: transform, opacity;
  -webkit-tap-highlight-color: transparent;
}

.orbit__node-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--bg-deep);
  box-shadow: 0 0 12px rgba(200, 169, 106, 0.25);
  transition: box-shadow 0.4s var(--ease-out), background 0.4s;
}

.orbit__node-en {
  font-size: clamp(0.6875rem, 2.6vw, 0.8125rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  white-space: nowrap;
  transition: color 0.4s;
}

.orbit__node-jp {
  font-size: 0.5625rem;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  white-space: nowrap;
  transition: color 0.4s;
}

.orbit__node.active .orbit__node-dot,
.orbit__node:hover .orbit__node-dot {
  background: var(--gold);
  box-shadow: 0 0 22px rgba(200, 169, 106, 0.65);
}

.orbit__node.active .orbit__node-en,
.orbit__node:hover .orbit__node-en { color: var(--gold-soft); }

.orbit__node.active .orbit__node-jp,
.orbit__node:hover .orbit__node-jp { color: var(--gold); }

/* 展開完了時の一巡パルス */
.orbit__node.pulse .orbit__node-dot {
  animation: nodePulse 1s var(--ease-out) 1;
}

@keyframes nodePulse {
  0%   { box-shadow: 0 0 12px rgba(200, 169, 106, 0.25); }
  35%  { box-shadow: 0 0 26px rgba(200, 169, 106, 0.75); }
  100% { box-shadow: 0 0 12px rgba(200, 169, 106, 0.25); }
}

/* Caption & final word */
.orbit__caption {
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  margin-top: 26px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.orbit__final {
  text-align: center;
  font-size: clamp(1.5rem, 6.5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-top: 10px;
  opacity: 0;
  transform: translateY(16px);
  filter: blur(6px);
  transition: opacity 1.1s var(--ease-out), transform 1.1s var(--ease-out), filter 1.1s var(--ease-out);
}

.orbit__final em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--gold-soft);
}

.orbit__caption.visible,
.orbit__final.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* JSなしの環境ではシンプルな一覧を表示 */
.orbit__fallback { display: none; }

html:not(.js) .orbit { height: auto; padding: 110px 0; }
html:not(.js) .orbit__sticky { position: static; height: auto; }
html:not(.js) .orbit__stage,
html:not(.js) .orbit__canvas { display: none; }
html:not(.js) .orbit__fallback {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 26px;
  margin-top: 34px;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  list-style: none;
}
html:not(.js) .orbit__caption,
html:not(.js) .orbit__final {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ── 13. Services (editorial index) ──────────────────────── */
.svc { background: var(--bg-deep); }

.svc__list {
  border-top: 1px solid var(--line);
}

.svc__row {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 24px;
  padding: 34px 4px;
  align-items: baseline;
  transition: background 0.4s var(--ease-out);
}

/* 罫線は左から右へ描画される */
.svc__row::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.3s var(--ease-out) 0.1s;
}

.svc__row.revealed::before { transform: scaleX(1); }

/* 汎用リビールを無効化し、子要素を段階表示する */
.svc__row[data-reveal] {
  opacity: 1;
  transform: none;
}

.svc__row .svc__num {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out), color 0.3s;
}

.svc__row .svc__en {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
  transition: opacity 0.85s var(--ease-out) 0.14s, transform 0.85s var(--ease-out) 0.14s,
              filter 0.85s var(--ease-out) 0.14s, color 0.3s;
}

.svc__row .svc__jp {
  opacity: 0;
  transition: opacity 0.9s var(--ease-out) 0.3s;
}

.svc__row .svc__desc,
.svc__row .svc__arrow {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.9s var(--ease-out) 0.36s, transform 0.9s var(--ease-out) 0.36s, color 0.3s;
}

.svc__row.revealed .svc__num,
.svc__row.revealed .svc__en,
.svc__row.revealed .svc__jp,
.svc__row.revealed .svc__desc,
.svc__row.revealed .svc__arrow {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

html:not(.js) .svc__row::before { transform: scaleX(1); }
html:not(.js) .svc__row .svc__num,
html:not(.js) .svc__row .svc__en,
html:not(.js) .svc__row .svc__jp,
html:not(.js) .svc__row .svc__desc,
html:not(.js) .svc__row .svc__arrow {
  opacity: 1;
  transform: none;
  filter: none;
}

@media (min-width: 860px) {
  .svc__row {
    grid-template-columns: 90px 1.2fr 1fr auto;
    gap: 24px;
    padding: 44px 8px;
    align-items: center;
  }
}

.svc__row:hover { background: rgba(242, 241, 236, 0.018); }

.svc__num {
  font-size: 0.8125rem;
  letter-spacing: 0.24em;
  color: var(--gold);
  font-weight: 500;
  transition: color 0.3s;
}

.svc__names { min-width: 0; }

.svc__en {
  display: block;
  font-size: clamp(1.35rem, 5.2vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--ink);
  transition: color 0.3s;
}

.svc__jp {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-top: 6px;
}

.svc__desc {
  grid-column: 2;
  font-size: 0.8125rem;
  line-height: 2;
  color: var(--ink-muted);
  max-width: 460px;
}

@media (min-width: 860px) {
  .svc__desc { grid-column: auto; }
}

.svc__arrow {
  display: none;
  font-size: 1.1rem;
  color: var(--ink-faint);
  transition: color 0.3s, transform 0.4s var(--ease-out), opacity 0.9s var(--ease-out) 0.36s;
}

@media (min-width: 860px) {
  .svc__arrow { display: block; }
}

.svc__row:hover .svc__en    { color: var(--gold-soft); }
.svc__row:hover .svc__arrow { color: var(--gold); transform: translateX(6px); }

.svc__cta { margin-top: 56px; }

/* ── 14. Credibility ──────────────────────────────────────── */
.cred {
  background:
    radial-gradient(ellipse 65% 55% at 85% 20%, rgba(52, 82, 140, 0.10) 0%, transparent 62%),
    var(--bg);
}

.cred__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

@media (min-width: 860px) {
  .cred__grid { grid-template-columns: repeat(4, 1fr); }
}

.cred__cell {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 34px 22px 38px;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
}

@media (min-width: 860px) {
  .cred__cell { padding: 44px 32px 48px; min-height: 240px; }
}

.cred__cell-num {
  font-size: 0.6875rem;
  letter-spacing: 0.28em;
  color: var(--ink-faint);
}

.cred__cell-en {
  font-size: clamp(1.15rem, 4.4vw, 1.55rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 8px;
}

.cred__cell-en em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--gold-soft);
}

.cred__cell-jp {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  line-height: 1.9;
  color: var(--ink-muted);
}

/* ── 15. Opportunity Check ────────────────────────────────── */
.check { background: var(--bg-deep); }

.check__panel {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(ellipse 80% 60% at 85% -10%, rgba(52, 82, 140, 0.14) 0%, transparent 60%),
    var(--bg-panel);
  padding: 44px 26px 48px;
  overflow: hidden;
}

@media (min-width: 768px) {
  .check__panel { padding: 64px 64px 68px; }
}

/* Gold corner accents */
.check__panel::before,
.check__panel::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  pointer-events: none;
}

.check__panel::before {
  top: -1px;
  left: -1px;
  border-top: 1px solid var(--gold-dim);
  border-left: 1px solid var(--gold-dim);
}

.check__panel::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 1px solid var(--gold-dim);
  border-right: 1px solid var(--gold-dim);
}

.check__progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 34px;
}

.check__progress-label {
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
}

.check__progress-bar {
  flex: 1;
  height: 1px;
  margin: 0 22px;
  background: var(--line);
  position: relative;
}

.check__progress-fill {
  position: absolute;
  inset: 0;
  background: var(--gold);
  transform-origin: left;
  transform: scaleX(0.33);
  transition: transform 0.5s var(--ease-out);
}

.check__progress-count {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.check__q {
  font-size: clamp(1.15rem, 4vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 30px;
}

.check__options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check__opt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  border: 1px solid var(--line);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  background: transparent;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.check__opt::after {
  content: '\2192';
  color: var(--ink-faint);
  transition: color 0.3s, transform 0.3s var(--ease-out);
  flex-shrink: 0;
}

.check__opt:hover,
.check__opt:focus-visible {
  border-color: var(--gold-dim);
  color: var(--ink);
  background: var(--gold-wash);
}

.check__opt:hover::after { color: var(--gold); transform: translateX(4px); }

/* Result */
.check__result { text-align: center; padding: 10px 0; }

.check__result-mark {
  width: 54px;
  height: 54px;
  margin: 0 auto 26px;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.check__result-mark svg {
  width: 20px;
  height: 20px;
  stroke: var(--gold-soft);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.check__result-label {
  font-size: 0.6875rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}

.check__result-title {
  font-size: clamp(1.2rem, 4.4vw, 1.6rem);
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin-bottom: 16px;
}

.check__result-note {
  font-size: 0.8125rem;
  line-height: 2.1;
  color: var(--ink-muted);
  max-width: 440px;
  margin: 0 auto 36px;
}

.check__result .btn { min-width: 260px; justify-content: center; gap: 18px; }

.check__reset {
  display: inline-block;
  margin-top: 24px;
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
  transition: color 0.3s, border-color 0.3s;
}

.check__reset:hover { color: var(--ink-soft); border-bottom-color: var(--line-strong); }

/* Step transitions */
.check__step { animation: checkIn 0.5s var(--ease-out); }

@keyframes checkIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── 16. CTA Banner ───────────────────────────────────────── */
.cta {
  position: relative;
  background:
    radial-gradient(ellipse 75% 70% at 50% 115%, rgba(52, 82, 140, 0.20) 0%, transparent 62%),
    radial-gradient(ellipse 40% 40% at 85% 0%, var(--glow-gold) 0%, transparent 60%),
    var(--bg-deep);
  border-top: 1px solid var(--line);
  text-align: center;
  overflow: hidden;
}

.cta .kicker { justify-content: center; margin-bottom: 30px; }

.cta__en {
  font-size: clamp(2rem, 8.5vw, 4.2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.12;
  color: var(--ink);
  margin-bottom: 22px;
}

.cta__en em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--gold-soft);
}

.cta__jp {
  font-size: clamp(0.875rem, 2.6vw, 1rem);
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-bottom: 48px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-bottom: 34px;
}

.cta__actions .btn { min-width: 250px; justify-content: center; gap: 18px; }

.cta__tel {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

.cta__tel a {
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.3s, border-color 0.3s;
}

.cta__tel a:hover { color: var(--gold-soft); border-color: var(--gold-dim); }

/* ── 17. Footer ───────────────────────────────────────────── */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding: 72px 0 120px;   /* extra bottom room for the sticky CTA */
}

@media (min-width: 768px) {
  .footer { padding: 88px 0 48px; }
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 860px) {
  .footer__inner {
    grid-template-columns: 1.4fr 1fr auto;
    gap: 48px;
    align-items: start;
  }
}

.footer__brand img {
  height: 24px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.95;
  margin-bottom: 18px;
}

.footer__brand-jp {
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.footer__tagline {
  font-size: 0.6875rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer__addr {
  font-style: normal;
  font-size: 0.8125rem;
  line-height: 2.1;
  color: var(--ink-muted);
  letter-spacing: 0.03em;
}

.footer__addr a { color: var(--ink-soft); transition: color 0.3s; }
.footer__addr a:hover { color: var(--gold-soft); }

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer__link {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  transition: color 0.3s;
}

.footer__link span {
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  text-transform: none;
}

.footer__link:hover { color: var(--gold-soft); }

.footer__bottom {
  margin-top: 64px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  align-items: center;
}

.footer__bottom p {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.footer__bottom-en {
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ── 18. Mobile Sticky CTA ────────────────────────────────── */
.sticky-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
  padding: 0 22px;
  background: rgba(4, 6, 11, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--gold-dim);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  transform: translateY(calc(100% + 24px));
  opacity: 0;
  transition: transform 0.55s var(--ease-out), opacity 0.55s var(--ease-out);
}

.sticky-cta.visible {
  transform: translateY(0);
  opacity: 1;
}

@media (min-width: 768px) {
  .sticky-cta { display: none; }
}

.sticky-cta__jp {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.sticky-cta__en {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.sticky-cta__en::after { content: '\2192'; font-size: 0.8rem; }

/* ── 19. Page Hero (sub pages) ────────────────────────────── */
.page-hero {
  position: relative;
  padding: calc(var(--nav-height) + 96px) 0 88px;
  background:
    radial-gradient(ellipse 80% 70% at 80% -20%, rgba(52, 82, 140, 0.18) 0%, transparent 62%),
    radial-gradient(ellipse 45% 45% at 8% 105%, var(--glow-gold) 0%, transparent 58%),
    var(--bg-deep);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-hero { padding: calc(var(--nav-height) + 150px) 0 130px; }
}

.page-hero__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(242, 241, 236, 0.04) 1px, transparent 1px);
  background-size: 25% 100%;
  background-position: -1px 0;
  mask-image: linear-gradient(to bottom, transparent, #000 30%);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 30%);
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero .kicker { margin-bottom: 28px; }

.page-hero__en {
  font-size: clamp(2.5rem, 11vw, 5.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.04;
  color: var(--ink);
  margin-bottom: 20px;
}

.page-hero__en em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--gold-soft);
}

.page-hero__jp {
  font-size: clamp(0.95rem, 3vw, 1.1rem);
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  font-weight: 500;
  margin-bottom: 16px;
}

.page-hero__desc {
  max-width: 520px;
  font-size: 0.875rem;
  line-height: 2.1;
  color: var(--ink-muted);
}

/* ── 20. Business page (editorial chapters) ──────────────── */
.biz-chapter {
  border-bottom: 1px solid var(--line);
  padding: 84px 0;
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .biz-chapter { padding: 130px 0; }
}

.biz-chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

@media (min-width: 900px) {
  .biz-chapter__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 80px;
    align-items: start;
  }
}

.biz-chapter__num {
  font-size: clamp(4.5rem, 16vw, 8rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(242, 241, 236, 0.14);
  margin-bottom: 26px;
}

.biz-chapter__tag {
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 16px;
}

.biz-chapter__en {
  font-size: clamp(1.9rem, 7vw, 3.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 12px;
}

.biz-chapter__jp {
  font-size: clamp(0.95rem, 3vw, 1.1rem);
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--ink-soft);
}

.biz-chapter__body {
  font-size: 0.875rem;
  line-height: 2.2;
  color: var(--ink-soft);
  padding-top: 8px;
}

@media (min-width: 900px) {
  .biz-chapter__body {
    padding-top: 130px;   /* aligns body with the title block */
  }
}

.biz-chapter__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.biz-chapter__kw {
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border: 1px solid var(--line);
  padding: 7px 14px;
}

/* ── 21. Company page (brand book) ────────────────────────── */
.co-statement {
  background:
    radial-gradient(ellipse 70% 55% at 12% 15%, rgba(52, 82, 140, 0.10) 0%, transparent 60%),
    var(--bg);
}

.co-statement__line {
  font-size: clamp(1.5rem, 6vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: 40px;
}

.co-statement__line em {
  font-style: normal;
  color: var(--gold-soft);
}

.co-profile { background: var(--bg-deep); }

.co-profile__list {
  max-width: 820px;
  border-top: 1px solid var(--line-strong);
}

.co-profile__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 40px;
  padding: 26px 4px;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 640px) {
  .co-profile__row {
    grid-template-columns: 220px 1fr;
    padding: 30px 8px;
  }
}

.co-profile__key { display: flex; flex-direction: column; gap: 2px; }

.co-profile__key-en {
  font-size: 0.625rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
}

.co-profile__key-jp {
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

.co-profile__val {
  font-size: 0.9375rem;
  line-height: 2;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.co-profile__val a {
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: color 0.3s, border-color 0.3s;
}

.co-profile__val a:hover { color: var(--gold-soft); border-color: var(--gold-dim); }

/* ── 22. Contact page ─────────────────────────────────────── */
.contact-lead {
  background: var(--bg);
  text-align: center;
}

.contact-lead__copy {
  font-size: clamp(1.3rem, 4.6vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.8;
  color: var(--ink);
  margin-bottom: 20px;
}

.contact-lead__note {
  font-size: 0.875rem;
  line-height: 2.1;
  color: var(--ink-muted);
  max-width: 520px;
  margin: 0 auto;
}

.contact-ways { background: var(--bg-deep); }

.contact-ways__grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  max-width: 980px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .contact-ways__grid { grid-template-columns: 1fr 1fr; }
}

.contact-way {
  position: relative;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 48px 28px 52px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  transition: background 0.4s var(--ease-out);
}

@media (min-width: 768px) {
  .contact-way { padding: 60px 48px 64px; }
}

.contact-way:hover { background: rgba(242, 241, 236, 0.02); }

.contact-way__label {
  font-size: 0.6875rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.contact-way__value {
  font-size: clamp(1.5rem, 6vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 12px;
  word-break: break-all;
  transition: color 0.3s;
}

a.contact-way__value:hover { color: var(--gold-soft); }

.contact-way__note {
  font-size: 0.75rem;
  line-height: 2;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}

.contact-way__btn { margin-top: 26px; }

.contact-flow { background: var(--bg); }

.contact-flow__list {
  max-width: 720px;
  border-top: 1px solid var(--line);
  counter-reset: flow;
}

.contact-flow__item {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 30px 4px;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.contact-flow__item::before {
  counter-increment: flow;
  content: '0' counter(flow);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.contact-flow__title {
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink);
  margin-bottom: 6px;
}

.contact-flow__text {
  font-size: 0.8125rem;
  line-height: 2;
  color: var(--ink-muted);
}

/* ── 23. Privacy page ─────────────────────────────────────── */
.privacy-body { background: var(--bg); }

.privacy-content { max-width: 760px; }

.privacy-content > p:first-of-type {
  font-size: 0.9375rem;
  line-height: 2.2;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.privacy-content h2 {
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 64px 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.privacy-content p {
  font-size: 0.875rem;
  color: var(--ink-soft);
  line-height: 2.15;
  margin-bottom: 16px;
}

.privacy-content ul {
  list-style: none;
  margin: 0 0 16px;
}

.privacy-content ul li {
  position: relative;
  font-size: 0.875rem;
  color: var(--ink-soft);
  line-height: 2;
  padding-left: 22px;
  margin-bottom: 10px;
}

.privacy-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--gold-dim);
}

.privacy-content a {
  color: var(--gold-soft);
  border-bottom: 1px solid var(--gold-dim);
  padding-bottom: 1px;
}

.privacy-content .privacy-date {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

/* ── 23b. Motion Layer ────────────────────────────────────── */

/* Premium text marquee — ゆっくり流れる英字帯 */
.marquee {
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 34px 0;
}

@media (min-width: 768px) {
  .marquee { padding: 48px 0; }
}

.marquee__track {
  display: flex;
  align-items: baseline;
  white-space: nowrap;
  width: max-content;
  will-change: transform;
}

.marquee__unit {
  display: inline-block;
  font-size: clamp(1.7rem, 6.5vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.2;
  color: rgba(242, 241, 236, 0.10);
  padding-right: 0.6em;
}

.marquee__unit i {
  font-style: normal;
  color: rgba(200, 169, 106, 0.30);
  padding: 0 0.4em;
  font-weight: 400;
}

.marquee__unit em {
  font-family: var(--ff-serif);
  font-style: italic;
  font-weight: 500;
  color: rgba(226, 203, 152, 0.16);
}

/* Ghost word — 背景でゆっくり動く大きな英字 */
.ghost-word {
  position: absolute;
  right: -2%;
  bottom: 4%;
  z-index: 0;
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: clamp(4.5rem, 17vw, 11rem);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(242, 241, 236, 0.055);
  pointer-events: none;
  user-select: none;
  will-change: transform;
}

.statement { position: relative; overflow: hidden; }
.statement .container { position: relative; z-index: 1; }

/* Parallax glow layers (JSが[data-glow]セクションへ注入) */
.glow {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  will-change: transform;
}

.glow__core {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  animation: glowBreathe 16s var(--ease-in-out) infinite alternate;
}

.glow--gold .glow__core {
  background: radial-gradient(circle, rgba(200, 169, 106, 0.075) 0%, transparent 62%);
}

.glow--navy .glow__core {
  background: radial-gradient(circle, rgba(72, 104, 168, 0.10) 0%, transparent 62%);
}

@keyframes glowBreathe {
  from { opacity: 0.5; transform: scale(0.92); }
  to   { opacity: 1;   transform: scale(1.08); }
}

/* Story ghost numbers drift with scroll (JS) */
.story__ghost { will-change: transform; }

/* 光レイヤーの上にコンテンツを保つ */
[data-glow] { position: relative; }
[data-glow] > .container { position: relative; z-index: 1; }

/* Kicker — 表示と同時に字間がゆっくり開く */
.kicker[data-reveal] {
  letter-spacing: 0.18em;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out),
              letter-spacing 1.8s var(--ease-out);
  transition-delay: var(--rd, 0s);
}

.kicker[data-reveal].revealed { letter-spacing: 0.34em; }

/* Button light sweep */
.btn { overflow: hidden; }

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -70%;
  width: 45%;
  background: linear-gradient(100deg, transparent 0%, rgba(226, 203, 152, 0.16) 50%, transparent 100%);
  transform: skewX(-18deg);
  pointer-events: none;
  opacity: 0;
}

.btn:hover::before,
.btn:focus-visible::before {
  animation: btnSweep 0.9s var(--ease-out) 1;
}

.btn--solid::before {
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, 0.35) 50%, transparent 100%);
}

@keyframes btnSweep {
  0%   { left: -70%; opacity: 1; }
  100% { left: 125%; opacity: 1; }
}

/* ── 24. Reveal on scroll ─────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--rd, 0s);
  will-change: opacity, transform;
}

[data-reveal="fade"] { transform: none; }

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Without JS, never hide content */
html:not(.js) [data-reveal] {
  opacity: 1;
  transform: none;
}

/* ── 25. Utilities ────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-2  { margin-top: 0.5rem; }
.mt-6  { margin-top: 1.5rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-14 { margin-top: 3.5rem; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── 26. Reduced motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }

  .loader { display: none !important; }
  body.is-loading { overflow: auto; }

  .hero__stage,
  .hero__scroll {
    opacity: 1;
    transform: none;
    animation: none;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__scroll-line::after { animation: none; }

  /* Motion layer — 静的表示に簡略化 */
  .hero__veil { display: none !important; }

  html.js .hero__bg { transform: none; }
  html.js .hero .kicker { letter-spacing: 0.34em; transition: none; }

  [data-kinetic] .k-char {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .orbit { height: auto; padding: 110px 0; }
  .orbit__sticky { position: static; height: auto; overflow: visible; }
  .orbit__core { animation: none; }

  .orbit__caption,
  .orbit__final {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .marquee__track { transform: none !important; }

  .glow__core { animation: none; }

  .svc__row::before { transform: scaleX(1); }
  .svc__row .svc__num,
  .svc__row .svc__en,
  .svc__row .svc__jp,
  .svc__row .svc__desc,
  .svc__row .svc__arrow {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

/* ============================================================
   27. Dimensional Layer — 3D Sculpture / Glass / Spatial Scroll
   2026-07 upgrade. すべて加算のみ。色・文章・構造は不変。
   prefers-reduced-motion / モバイルでは静止した美しい状態へ。
   ============================================================ */

/* ── 27.1 Hero 3D Sculpture — Opportunity Core ────────────── */
.hero__sculpture {
  position: absolute;
  inset: 0;
  z-index: 1;                       /* bg/lines/canvas の上、content(z2) の下 */
  display: grid;
  place-items: center;
  pointer-events: none;
  perspective: 1200px;
  perspective-origin: 50% 44%;
  opacity: 0;
  transform: translateY(14px);
}

html.js .hero.open .hero__sculpture {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 2.1s var(--ease-out) 0.35s, transform 2.1s var(--ease-out) 0.35s;
}

/* デスクトップでは少し右へ寄せ、左寄せコピーの視認性を確保 */
@media (min-width: 900px) {
  .hero__sculpture { perspective-origin: 63% 46%; justify-items: center; }
  .core3d { margin-left: 15%; }
}

.core3d {
  position: relative;
  width: min(86vw, 540px);
  height: min(86vw, 540px);
  transform-style: preserve-3d;
  transform: rotateX(var(--core-rx, 0deg)) rotateY(var(--core-ry, 0deg));
  will-change: transform;
}

.core3d__spin {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  animation: core3dSpin 64s linear infinite;
}

@keyframes core3dSpin {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

/* 精密機械のようなリング群（天体儀 / 高級時計） */
.core3d__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(200, 169, 106, 0.22);
}

.core3d__ring::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid transparent;
  border-top-color: rgba(226, 203, 152, 0.72);
  border-right-color: rgba(226, 203, 152, 0.26);
}

.core3d__ring--a { transform: rotateX(78deg); }
.core3d__ring--b { transform: rotateX(68deg) rotateY(58deg); border-color: rgba(200, 169, 106, 0.16); }
.core3d__ring--c { inset: 11%; transform: rotateX(24deg) rotateZ(-28deg); border-color: rgba(120, 150, 190, 0.22); }
.core3d__ring--d { inset: 23%; transform: rotateX(82deg) rotateZ(40deg); border-style: dashed; border-color: rgba(200, 169, 106, 0.20); }

/* 中央を貫くガラス板 */
.core3d__glass {
  position: absolute;
  inset: 27%;
  border-radius: 16px;
  transform: rotateX(74deg) rotateZ(18deg);
  background: linear-gradient(135deg, rgba(120, 150, 190, 0.12), rgba(200, 169, 106, 0.05) 55%, transparent);
  border: 1px solid rgba(226, 203, 152, 0.18);
  box-shadow: 0 0 44px rgba(64, 96, 158, 0.14);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

/* 金属コア */
.core3d__core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 34%;
  height: 34%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 30%, rgba(255, 247, 228, 0.92) 0%, rgba(226, 203, 152, 0.62) 13%, rgba(160, 124, 66, 0.5) 36%, rgba(20, 26, 42, 0.92) 72%),
    radial-gradient(circle at 50% 50%, #0b101a, #04060b);
  box-shadow: 0 0 60px rgba(200, 169, 106, 0.24), inset 0 0 30px rgba(4, 6, 11, 0.7);
  animation: core3dBreathe 7s var(--ease-in-out) infinite alternate;
}

@keyframes core3dBreathe {
  from { box-shadow: 0 0 44px rgba(200, 169, 106, 0.16), inset 0 0 30px rgba(4, 6, 11, 0.7); }
  to   { box-shadow: 0 0 82px rgba(200, 169, 106, 0.30), inset 0 0 30px rgba(4, 6, 11, 0.7); }
}

/* 静止した後光（回転しない） */
.core3d__halo {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 152%;
  height: 152%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(64, 96, 158, 0.16) 0%, rgba(200, 169, 106, 0.05) 33%, transparent 62%);
}

/* 傾いた軌道面を回る衛星 */
.core3d__orbit {
  position: absolute;
  inset: 5%;
  transform-style: preserve-3d;
  transform: rotateX(76deg);
  animation: core3dOrbit 26s linear infinite;
}

@keyframes core3dOrbit {
  from { transform: rotateX(76deg) rotateZ(0deg); }
  to   { transform: rotateX(76deg) rotateZ(360deg); }
}

.core3d__sat {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  margin: -3.5px;
  border-radius: 50%;
  background: var(--gold-soft);
  box-shadow: 0 0 12px rgba(200, 169, 106, 0.7);
  transform: rotateZ(var(--a, 0deg)) translateX(clamp(84px, 39vw, 244px));
}

.core3d__sat--2 { --a: 132deg; }
.core3d__sat--3 { --a: 244deg; width: 5px; height: 5px; margin: -2.5px; }

/* 画面外では 3D の自動回転を停止（省電力） */
.core3d.paused .core3d__spin,
.core3d.paused .core3d__orbit,
.core3d.paused .core3d__core { animation-play-state: paused; }

/* コピーの視認性を守るスクリム（3Dコアの上・テキストの下） */
.hero__content::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: -8% -12%;
  background: radial-gradient(115% 80% at 34% 44%, rgba(4, 6, 11, 0.72) 0%, rgba(4, 6, 11, 0.4) 44%, transparent 72%);
  pointer-events: none;
}

@media (min-width: 900px) {
  .hero__content::before {
    inset: -6% -8%;
    background: radial-gradient(78% 72% at 20% 48%, rgba(4, 6, 11, 0.66) 0%, rgba(4, 6, 11, 0.28) 46%, transparent 70%);
  }
}

/* モバイル：明るいコアをコピーの下へ逃がし、少し落ち着かせる */
@media (max-width: 899px) {
  .core3d { margin-top: 18%; }
  .hero__sculpture { opacity: 0.82; }
}

/* ── 27.2 Hero Typography — 光が走る ──────────────────────── */
.hero__title { position: relative; }

.hero__title::after {
  content: '';
  position: absolute;
  inset: -0.1em -0.2em;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 42%, rgba(226, 203, 152, 0.45) 50%, transparent 58%);
  background-size: 240% 100%;
  background-position: 185% 0;
  mix-blend-mode: screen;
  opacity: 0;
}

html.js .hero.open .hero__title::after {
  animation: titleShine 2.8s var(--ease-out) 2.5s 1;
}

@keyframes titleShine {
  0%   { opacity: 0; background-position: 185% 0; }
  18%  { opacity: 1; }
  100% { opacity: 0; background-position: -70% 0; }
}

/* ── 27.3 Scroll Spine — 空間を進む縦の光の糸 ─────────────── */
.scroll-spine {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  z-index: 800;
  background: rgba(242, 241, 236, 0.05);
  pointer-events: none;
}

.scroll-spine__fill {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transform-origin: top;
  transform: scaleY(0);
  background: linear-gradient(to bottom, rgba(226, 203, 152, 0.0), var(--gold) 40%, var(--gold-soft));
  box-shadow: 0 0 10px rgba(200, 169, 106, 0.5);
}

/* 各セクション見出しへ降りてくるゴールドの導線 */
.section-head .kicker[data-reveal]::after,
.orbit__head .kicker::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 100%;
  margin-bottom: 14px;
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--gold-dim));
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 1s var(--ease-out) 0.1s;
}

.section-head .kicker[data-reveal].revealed::after,
.orbit__head .kicker.revealed::after { transform: scaleY(1); }

.section-head .kicker { position: relative; }
.orbit__head .kicker { position: relative; }
.text-center .kicker--bare::after,
.orbit__head .kicker--bare::after { left: 50%; }

/* ── 27.4 Glass Service Panels ────────────────────────────── */
.svc__list { perspective: 1400px; }

.svc__row {
  overflow: hidden;
  border-radius: 14px;
  margin-bottom: 14px;
  background:
    linear-gradient(135deg, rgba(242, 241, 236, 0.055), rgba(242, 241, 236, 0.015) 42%, rgba(11, 16, 26, 0));
  border: 1px solid rgba(242, 241, 236, 0.07);
  box-shadow: 0 22px 50px -32px rgba(0, 0, 0, 0.85);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  transform-style: preserve-3d;
  transition: background 0.4s var(--ease-out), border-color 0.4s var(--ease-out),
              box-shadow 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

@media (min-width: 860px) {
  .svc__row { padding-left: 24px; padding-right: 24px; }
}

/* 既存の下線リビールを、上辺を走るゴールドの光へ転用 */
.svc__row::before {
  top: 0;
  bottom: auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 203, 152, 0.55), transparent);
}

/* カーソル位置に追従する反射光 */
.svc__row::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 0%), rgba(226, 203, 152, 0.12), transparent 60%);
  opacity: 0;
  transition: opacity 0.5s var(--ease-out);
}

.svc__row.lit::after { opacity: 1; }

.svc__row.lit {
  border-color: rgba(226, 203, 152, 0.32);
  box-shadow: 0 26px 60px -30px rgba(0, 0, 0, 0.9), 0 0 40px -18px rgba(200, 169, 106, 0.4);
}

.svc__row:hover { background: linear-gradient(135deg, rgba(242, 241, 236, 0.07), rgba(242, 241, 236, 0.02) 42%, rgba(11, 16, 26, 0)); }

/* ── 27.5 Business Orbit — 奥行き（被写界深度） ───────────── */
.orbit__stage { perspective: 900px; }

/* コアの底に落ちる淡い影で接地感を出す */
.orbit__core::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -34%;
  width: 120%;
  height: 40%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(4, 6, 11, 0.55), transparent 70%);
  pointer-events: none;
  filter: blur(4px);
}

/* ── 27.6 Reduced Motion — 3D を止め、静止した美として見せる ─ */
@media (prefers-reduced-motion: reduce) {
  .core3d__spin,
  .core3d__orbit,
  .core3d__core { animation: none !important; }

  .core3d { transform: rotateX(14deg) rotateY(-20deg); }
  .hero__sculpture { opacity: 1; transform: none; }

  .hero__title::after { animation: none !important; opacity: 0 !important; }

  .svc__row { transform: none !important; }

  .section-head .kicker[data-reveal]::after,
  .orbit__head .kicker::after { transform: scaleY(1); transition: none; }

  .scroll-spine__fill { transition: none; }
}