/* =========================================================
   BFR LIGHT GYM ― Senior LP
   "P5-inspired × overseas editorial" / White×Navy×Black + Vivid Red
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  /* Color (Monochrome only) */
  --c-bg: #ffffff;
  --c-bg-2: #fafafa;
  --c-bg-warm: #f4f4f4;

  --c-dark: #000000;
  --c-dark-2: #0a0a0a;
  --c-dark-3: #1a1a1a;

  --c-text: #000000;
  --c-text-mute: #6b6b6b;
  --c-line: #dcdcdc;

  /* Accents collapse into pure black-and-white */
  --c-accent: #000000;
  --c-accent-dark: #000000;
  --c-accent-soft: #f0f0f0;

  /* "yellow" token kept for compatibility, mapped to neutral light gray;
     tag-style boxes that used yellow are repainted to white+black border */
  --c-yellow: #f0f0f0;
  --c-yellow-dark: #000000;

  /* Typography (Sans-serif / Gothic only) */
  --f-en: "Anton", "Bebas Neue", "Helvetica Neue", sans-serif;
  --f-en-2: "Bebas Neue", "Anton", sans-serif;
  --f-ja: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --f-ja-serif: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(20px, 5vw, 80px);
  --section-py: clamp(64px, 9vw, 130px);
  --header-h: 80px;

  /* Section background images */
  --img-concept: url('img/facility/gym-overview.jpg');
  --img-solution: url('img/cta-mid-bg.jpeg');
  --img-future: url('img/concept-bg.jpeg');
  --img-cta-final: url('img/cta-final-bg.jpeg');
  --img-safety: url('img/facility/gym-interior.jpg');

  /* Motion */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
body {
  margin: 0;
  font-family: var(--f-ja);
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
  letter-spacing: 0.04em;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }
img, svg, iframe { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: color .2s var(--ease), opacity .2s var(--ease); }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, p, dd, dl, em, i { margin: 0; padding: 0; font-style: normal; }
::selection { background: var(--c-accent); color: #fff; }

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

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--c-dark);
  outline-offset: 3px;
}

.pc-only { display: inline; }
.sp-only { display: none; }
@media (max-width: 768px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  position: relative;
}
.section { padding-block: var(--section-py); position: relative; }

/* ---------- Section Heading ---------- */
.section-head {
  margin-bottom: clamp(56px, 8vw, 96px);
  position: relative;
}
.section-head--center { text-align: center; }
.section-head--inverse { color: #fff; }

.section-head__num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-en);
  font-size: 13px;
  line-height: 1;
  color: var(--c-text-mute);
  letter-spacing: 0.3em;
  margin-bottom: 16px;
  font-weight: 500;
}
.section-head__num::after {
  content: "";
  width: 36px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}
.section-head--center .section-head__num {
  display: inline-flex;
  margin: 0 auto 16px;
}
.section-head--inverse .section-head__num { color: rgba(255,255,255,0.6); }

.section-head__en {
  display: inline-block;
  font-family: var(--f-en);
  font-size: clamp(40px, 6vw, 80px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--c-dark);
  padding: 0;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.section-head--inverse .section-head__en {
  color: #fff;
}

.section-head__ja {
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.65;
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1;
  color: var(--c-dark);
  margin-top: 6px;
}
.section-head--inverse .section-head__ja { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 60px;
  padding: 0 38px;
  font-family: var(--f-ja);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: center;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .35s var(--ease-out), color .35s var(--ease-out), border-color .35s var(--ease-out);
  position: relative;
  white-space: nowrap;
}
.btn__arrow {
  display: inline-block;
  transition: transform .35s var(--ease-out);
  font-weight: 400;
  font-family: var(--f-en);
  font-size: 1.05em;
}
.btn:hover .btn__arrow { transform: translateX(6px); }

.btn--primary {
  background: #ffe066;
  color: var(--c-dark);
  border-color: var(--c-dark);
  font-weight: 900;
  box-shadow: 4px 4px 0 var(--c-dark);
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease);
}
.btn--primary:hover {
  background: var(--c-dark);
  color: #ffe066;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 #ffe066;
}

.btn--outline {
  background: transparent;
  color: var(--c-dark);
  border-color: var(--c-dark);
  font-weight: 900;
}
.btn--outline:hover { background: #ffe066; color: var(--c-dark); border-color: var(--c-dark); }

.btn--outline-light {
  background: transparent;
  color: #ffe066;
  border-color: #ffe066;
  font-weight: 900;
}
.btn--outline-light:hover { background: #ffe066; color: var(--c-dark); border-color: #ffe066; }

.btn--sm { min-height: 40px; padding: 0 20px; font-size: 12px; gap: 10px; }
.btn--lg { min-height: 64px; padding: 0 44px; font-size: 15px; }
.btn--xl { min-height: 72px; padding: 0 56px; font-size: 16px; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.header--scrolled {
  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
  border-bottom-color: transparent;
}
.header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 14px var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header__logo { display: inline-flex; align-items: center; }
.header__logo-img {
  display: block;
  height: 38px;
  width: auto;
  transition: opacity .25s var(--ease);
}
.header__logo:hover .header__logo-img { opacity: 0.78; }

.header__nav-list {
  display: flex;
  gap: 22px;
}
.header__nav-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--f-ja);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-dark);
  position: relative;
  transition: color .3s var(--ease);
}
.header__nav-list a i {
  font-family: var(--f-en);
  font-size: 11px;
  color: var(--c-text-mute);
  font-style: normal;
  font-weight: 400;
}
.header__nav-list a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease-out);
}
.header__nav-list a:hover::after,
.header__nav-list a.is-active::after { transform: scaleX(1); }

.header__cta {
  background: var(--c-dark);
  color: #fff;
  border-color: var(--c-dark);
}
.header__cta:hover { background: #fff; color: var(--c-dark); border-color: var(--c-dark); }

.header__hamburger {
  display: none;
  width: 44px; height: 44px;
  position: relative;
  background: var(--c-dark);
  z-index: 101;
}
.header__hamburger span {
  display: block;
  position: absolute;
  left: 12px;
  width: 20px; height: 2px;
  background: #fff;
  transition: transform .3s var(--ease), top .3s var(--ease), opacity .2s var(--ease);
}
.header__hamburger span:nth-child(1) { top: 16px; }
.header__hamburger span:nth-child(2) { top: 21px; }
.header__hamburger span:nth-child(3) { top: 26px; }
.header__hamburger.is-active { background: var(--c-accent); }
.header__hamburger.is-active span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.header__hamburger.is-active span:nth-child(2) { opacity: 0; }
.header__hamburger.is-active span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ---------- Hero (image bg + integrated message) ---------- */
.section--hero {
  padding: 0;
  height: 100vh;
  min-height: 700px;
  max-height: 1100px;
  position: relative;
  background: var(--c-dark);
  overflow: hidden;
  color: #fff;
  display: flex;
  flex-direction: column;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: var(--img-cta-final);
  background-size: cover;
  background-position: center;
  z-index: 0;
  filter: contrast(1.05) saturate(0.92);
  animation: heroZoom 14s var(--ease) forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.06); }
  to   { transform: scale(1); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.55) 50%, rgba(0,0,0,0.82) 100%);
}

/* Top thin banner */
.hero__topbar {
  position: relative;
  z-index: 3;
  margin-top: 70px;
  padding: 11px var(--container-pad);
  background: var(--c-dark);
  border-bottom: 1px solid rgba(255,255,255,0.18);
  text-align: center;
}
.hero__topbar-text {
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: #fff;
}

/* Hero inner layout - 2-column grid for PC */
.hero__inner {
  position: relative;
  z-index: 2;
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  grid-template-areas:
    "brand  promo"
    "hex    cta";
  column-gap: clamp(32px, 4.5vw, 72px);
  row-gap: clamp(18px, 2.4vw, 32px);
  padding: clamp(36px, 4.5vw, 60px) var(--container-pad) clamp(60px, 7vw, 88px);
  max-width: 1200px;
  width: 100%;
  margin-inline: auto;
  align-content: center;
}

.hero__brand-block {
  grid-area: brand;
  align-self: end;
  max-width: none;
}

.hero__num {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  margin-bottom: 22px;
}
.hero__num i {
  display: inline-block;
  width: 40px;
  height: 1px;
  background: rgba(255,255,255,0.5);
}

.hero__headline {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: #fff;
  margin-bottom: 22px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.45);
}
.hero__headline em {
  position: relative;
  font-style: normal;
  display: inline-block;
  color: #ffe66e;
}
.hero__headline em::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -8px;
  height: 2px;
  background: #ffe66e;
}

.hero__catch {
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(14.5px, 1.6vw, 18px);
  line-height: 1.95;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 1px 10px rgba(0,0,0,0.45);
  max-width: 640px;
}
.hero__catch strong {
  color: #ffe66e;
  font-weight: 900;
}

/* Hex badges */
.hero__hex-list {
  grid-area: hex;
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
  gap: clamp(8px, 1.5vw, 18px);
  flex-wrap: wrap;
  align-self: start;
}
.hero__hex {
  position: relative;
  width: clamp(110px, 13vw, 150px);
  aspect-ratio: 1 / 1.12;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background:
    linear-gradient(180deg, #ffe066 0%, #c4880c 28%, #6b4500 70%, #2e1a00 100%);
  display: grid;
  place-items: center;
  text-align: center;
  filter:
    drop-shadow(0 22px 32px rgba(0,0,0,0.45))
    drop-shadow(0 8px 14px rgba(0,0,0,0.35))
    drop-shadow(0 2px 4px rgba(0,0,0,0.3));
  transition: transform .35s var(--ease-out), filter .35s var(--ease-out);
  animation: hexFloat 5s ease-in-out infinite;
}
.hero__hex:nth-child(2) { animation-delay: -1.6s; }
.hero__hex:nth-child(3) { animation-delay: -3.2s; }
.hero__hex:hover {
  transform: translateY(-8px) scale(1.03);
  filter:
    drop-shadow(0 32px 44px rgba(0,0,0,0.5))
    drop-shadow(0 12px 18px rgba(0,0,0,0.4))
    drop-shadow(0 3px 6px rgba(0,0,0,0.32));
}
@keyframes hexFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

.hero__hex::before {
  content: "";
  position: absolute;
  inset: 6px;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background:
    /* Top hot spot */
    radial-gradient(ellipse 78% 46% at 50% 14%, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0) 60%),
    /* Bottom inner shadow */
    radial-gradient(ellipse 100% 60% at 50% 105%, rgba(60,30,0,0.55) 0%, rgba(60,30,0,0) 60%),
    /* Top edge bevel highlight */
    linear-gradient(180deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0) 16%),
    /* Bottom edge bevel shadow */
    linear-gradient(0deg, rgba(40,20,0,0.45) 0%, rgba(40,20,0,0) 22%),
    /* Main gold body */
    linear-gradient(165deg, #fff8d1 0%, #ffe273 25%, #f5b524 58%, #9a6b08 100%);
  z-index: 0;
}
.hero__hex::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 18%;
  width: 64%;
  height: 28%;
  background:
    radial-gradient(ellipse 100% 60% at 50% 30%, rgba(255,255,255,0.95) 0%, rgba(255,255,255,0.4) 35%, rgba(255,255,255,0) 75%);
  filter: blur(5px);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: screen;
}
.hero__hex span {
  position: relative;
  z-index: 2;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(13px, 1.5vw, 16px);
  letter-spacing: 0.06em;
  color: #2e1a00;
  line-height: 1.4;
  text-shadow:
    0 1px 0 rgba(255, 245, 200, 0.85),
    0 -1px 0 rgba(0, 0, 0, 0.15);
}

/* Promo box */
.hero__promo {
  grid-area: promo;
  align-self: end;
  position: relative;
  background: rgba(255,255,255,0.97);
  border: 2px solid var(--c-dark);
  padding: 28px 28px 24px;
  margin: 0;
  max-width: none;
  width: 100%;
  text-align: center;
  color: var(--c-dark);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.5);
}
.hero__promo-ribbon {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-block;
  background: var(--c-dark);
  color: #fff;
  padding: 8px 24px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.2em;
  white-space: nowrap;
}
.hero__promo-title {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.3;
  color: var(--c-dark);
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}
.hero__promo-desc {
  font-family: var(--f-ja);
  font-size: clamp(13px, 1.5vw, 14.5px);
  line-height: 1.95;
  color: var(--c-dark);
  letter-spacing: 0.04em;
}
.hero__promo-desc strong {
  font-weight: 900;
  border-bottom: 2px solid var(--c-dark);
  padding-bottom: 1px;
}
.hero__promo-desc em {
  display: inline-block;
  margin-top: 6px;
  font-style: normal;
  font-weight: 900;
  font-size: 1.18em;
  letter-spacing: 0.06em;
  background: linear-gradient(transparent 62%, #ffe66e 62%);
  padding: 0 4px;
}

/* Big main CTA */
.hero__main-cta {
  grid-area: cta;
  align-self: start;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 20px 32px;
  background: linear-gradient(135deg, #ffe066 0%, #ff9f3c 100%);
  border: 2px solid var(--c-dark);
  border-radius: 6px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(16px, 2vw, 20px);
  color: var(--c-dark);
  letter-spacing: 0.08em;
  box-shadow: 5px 5px 0 var(--c-dark);
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
  text-decoration: none;
}
.hero__main-cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--c-dark);
}
.hero__main-cta-arrow {
  font-family: var(--f-en);
  font-size: 1.05em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-dark);
  color: #fff;
}

/* Hero rule (bottom static label) */
.hero__rule {
  position: absolute;
  left: 0; right: 0;
  bottom: 0;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding: 16px var(--container-pad);
  text-align: center;
  z-index: 3;
}
.hero__rule span {
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.6);
}

/* ---------- Problem ---------- */
.section--problem {
  background: #fafafa;
  position: relative;
}

/* Problem hero image (replaces the bubbles content) */
.problem__hero {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}
.problem__hero img {
  display: block;
  width: 100%;
  height: auto;
}
/* PC: white haze around the image edges */
@media (min-width: 769px) {
  .problem__hero img {
    -webkit-mask-image: radial-gradient(ellipse 92% 88% at center, #000 50%, transparent 100%);
    mask-image: radial-gradient(ellipse 92% 88% at center, #000 50%, transparent 100%);
  }
}

.problem__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
  margin-bottom: 72px;
}
.problem__media {
  position: relative;
  aspect-ratio: 4 / 5;
}
.problem__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}
.problem__media-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(0,0,0,0.78);
  color: #fff;
  padding: 10px 16px 8px;
  text-align: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.problem__media-tag span {
  display: block;
  font-family: var(--f-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.7);
}
.problem__media-tag strong {
  display: block;
  font-family: var(--f-en);
  font-size: 20px;
  line-height: 1;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.problem__main {
  display: flex;
  flex-direction: column;
  position: relative;
}

.problem__bubble {
  position: relative;
  align-self: flex-start;
  background: #fff;
  border: 2px solid var(--c-dark);
  border-radius: 22px;
  padding: 26px 32px 28px;
  margin-bottom: 32px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.55;
  letter-spacing: 0.04em;
  color: var(--c-dark);
  box-shadow: 6px 6px 0 var(--c-dark);
  max-width: 100%;
}
.problem__bubble em {
  font-style: normal;
  display: inline-block;
  background: linear-gradient(transparent 58%, rgba(0,0,0,0.12) 58%);
  padding: 0 4px;
}
.problem__bubble-sub {
  display: block;
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--c-text-mute);
  font-weight: 500;
  margin-bottom: 10px;
}
.problem__bubble::before,
.problem__bubble::after {
  content: "";
  position: absolute;
  width: 0;
  height: 0;
  border-style: solid;
}
.problem__bubble::before {
  left: -22px;
  top: 44px;
  border-width: 12px 22px 12px 0;
  border-color: transparent var(--c-dark) transparent transparent;
}
.problem__bubble::after {
  left: -18px;
  top: 46px;
  border-width: 10px 19px 10px 0;
  border-color: transparent #fff transparent transparent;
}

.problem__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.problem__item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 26px 28px;
  background: #fff;
  border-bottom: 1px solid var(--c-line);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background .3s var(--ease);
}
.problem__item:first-child { border-top: 1px solid var(--c-line); }
.problem__item:hover {
  background: var(--c-bg-warm);
}
.problem__item-mark {
  font-family: var(--f-en);
  font-size: 18px;
  line-height: 1;
  color: var(--c-text-mute);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  padding-top: 4px;
}
.problem__item-text { line-height: 1.7; }
.problem__item-text strong {
  font-weight: 700;
  border-bottom: 1px solid var(--c-dark);
  padding-bottom: 1px;
}

/* Problem list as speech bubbles */
.problem__list--bubbles {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.problem__list--bubbles .problem__item {
  position: relative;
  align-items: center;
  gap: 16px;
  padding: 20px 26px 20px 64px;
  background: #fff;
  border: 2px solid var(--c-dark);
  border-radius: 22px;
  box-shadow: 5px 5px 0 var(--c-dark);
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.problem__list--bubbles .problem__item:first-child { border-top: 2px solid var(--c-dark); }
.problem__list--bubbles .problem__item:hover {
  background: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--c-dark);
}
.problem__list--bubbles .problem__item-mark {
  position: absolute;
  top: 50%;
  left: 14px;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--c-dark);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--f-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0;
}
.problem__list--bubbles .problem__item::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 9px 16px 9px 0;
  border-color: transparent var(--c-dark) transparent transparent;
}
.problem__list--bubbles .problem__item::after {
  content: "";
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 7px 13px 7px 0;
  border-color: transparent #fff transparent transparent;
}
.problem__list--bubbles .problem__item:nth-child(even) {
  margin-left: clamp(12px, 2vw, 28px);
}
.problem__list--bubbles .problem__item-text {
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.problem__answer {
  text-align: center;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(20px, 3vw, 32px);
  line-height: 1.6;
  color: var(--c-dark);
  letter-spacing: 0.04em;
  position: relative;
  padding-top: 64px;
  margin-top: 40px;
}
.problem__answer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 40px;
  background: var(--c-dark);
}
.problem__answer-mark {
  display: none;
}
.problem__answer-text strong {
  color: var(--c-dark);
  display: inline-block;
  position: relative;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--c-dark);
}

/* ---------- Concept ---------- */
.section--concept {
  background-color: var(--c-dark);
  background-image: linear-gradient(rgba(0,0,0,0.78), rgba(0,0,0,0.86)), var(--img-concept);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--concept::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  opacity: 0.5;
}
.concept__bg-num { display: none; }

.concept__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
  position: relative;
  z-index: 1;
}

.concept__en {
  background: transparent;
  color: #fff;
}
.concept__headline {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: #fff;
  margin-top: 16px;
}
.concept__headline-line { display: block; white-space: nowrap; }
.concept__headline em {
  font-style: normal;
  color: #fff;
  position: relative;
  background: transparent;
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,0.5);
}
.concept__headline em::after { display: none; }

.concept__lead {
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.85;
  margin-bottom: 28px;
  color: #fff;
  padding-left: 0;
  border-left: 0;
}
.concept__text {
  font-size: 15px;
  line-height: 2.1;
  color: rgba(255,255,255,0.82);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}
.concept__text + .concept__text { margin-top: 0; }
.concept__text strong {
  display: inline;
  font-weight: 900;
  font-size: 1.18em;
  color: #ffe66e;
  letter-spacing: 0.05em;
  background: linear-gradient(transparent 62%, rgba(255, 230, 110, 0.18) 62%);
  padding: 0 2px;
}
.concept__sign {
  margin-top: 32px;
  font-family: var(--f-en);
  font-size: 16px;
  letter-spacing: 0.16em;
  color: #fff;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.concept__chip {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--f-en);
  font-size: 12px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
}

/* ---------- Solution ---------- */
.section--solution {
  background-color: var(--c-dark);
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 80px 80px;
  color: #fff;
  position: relative;
}
.section--solution::before {
  content: "THE SYSTEM";
  position: absolute;
  top: 30px;
  right: -30px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 260px);
  line-height: 0.9;
  color: rgba(255, 255, 255, 0.08);
  letter-spacing: 0.02em;
  pointer-events: none;
  z-index: 0;
  white-space: nowrap;
}
.section--solution > .container { position: relative; z-index: 1; }

.solution__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.solution__media {
  position: relative;
  aspect-ratio: 4 / 5;
}
.solution__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}
.solution__media-stamp {
  position: absolute;
  top: 20px; left: 20px;
  background: rgba(255,255,255,0.92);
  color: var(--c-dark);
  padding: 12px 16px 10px;
  font-family: var(--f-en);
  font-size: 14px;
  letter-spacing: 0.3em;
  line-height: 1.2;
  text-align: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2;
}

/* Solution media gallery (1 main + 2 thumbs) */
.solution__media--gallery {
  aspect-ratio: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.solution__media-main {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.solution__media-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}
.solution__media-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.solution__media-thumbs img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}

.solution__pickup {
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.55;
  margin-bottom: 28px;
  color: #fff;
  flex-wrap: wrap;
}
.solution__pickup span {
  font-family: var(--f-en);
  font-size: 11px;
  background: transparent;
  color: rgba(255,255,255,0.6);
  padding: 0;
  letter-spacing: 0.4em;
  flex-shrink: 0;
  position: relative;
  top: -2px;
}
.solution__text {
  font-size: 15px;
  line-height: 2.1;
  color: rgba(255,255,255,0.86);
  letter-spacing: 0.06em;
  margin-bottom: 32px;
}
.solution__text strong {
  color: #fff;
  font-weight: 900;
  border-bottom: 2px solid #fff;
  padding-bottom: 1px;
}

.solution__compare {
  position: relative;
  background: #fff;
  border: 2px solid #fff;
  border-radius: 4px;
  padding: 28px 32px 30px;
  margin-bottom: 36px;
  box-shadow: 8px 8px 0 rgba(255,255,255,0.18);
}
.solution__compare-label {
  display: block;
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--c-text-mute);
  font-weight: 500;
  margin-bottom: 16px;
  text-align: center;
}
.solution__compare-q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.55;
  color: var(--c-dark);
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px dashed rgba(0,0,0,0.18);
}
.solution__compare-q-mark, .solution__compare-a-mark {
  font-family: var(--f-en);
  font-size: 30px;
  line-height: 1;
  color: var(--c-dark);
  flex-shrink: 0;
  letter-spacing: 0.02em;
}
.solution__compare-q-text {
  flex: 1;
  padding-top: 4px;
}
.solution__compare-a {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding-top: 0;
  border-top: 0;
}
.solution__compare-a-mark { color: var(--c-text-mute); }
.solution__compare-a p {
  flex: 1;
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.7;
  color: var(--c-dark);
  letter-spacing: 0.04em;
}
.solution__compare-a p strong { color: var(--c-dark); font-weight: 900; border-bottom: 2px solid var(--c-dark); }
.solution__compare-a p mark {
  background: linear-gradient(transparent 55%, #ffe66e 55%);
  color: var(--c-dark);
  font-weight: 900;
  padding: 0 2px;
}

.solution__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.solution__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}
.solution__list li span {
  font-family: var(--f-en);
  font-size: 14px;
  color: #fff;
  background: transparent;
  width: 18px; height: 18px;
  display: grid; place-items: center;
  flex-shrink: 0;
}

/* ---------- CTA Mid ---------- */
.section--cta-mid {
  padding-block: clamp(64px, 9vw, 110px);
  background: var(--c-dark);
  position: relative;
  overflow: hidden;
  color: #fff;
}

.cta-mid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(20px, 3vw, 48px);
  align-items: center;
  padding: 28px 0;
}
.cta-mid__copy {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.5;
  color: #fff;
  letter-spacing: 0.04em;
}
.cta-mid__copy em {
  font-family: var(--f-en);
  font-style: normal;
  font-size: 1.4em;
  background: transparent;
  color: #fff;
  padding: 0 2px 2px;
  line-height: 1;
  margin: 0 4px;
  border-bottom: 1px solid #fff;
}
.cta-mid__btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- Feature ---------- */
.section--feature {
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}
.section--feature::before {
  content: "FEATURES";
  position: absolute;
  top: 30px; right: -20px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.9;
  color: var(--c-line);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.02em;
}

.feature__list {
  display: flex;
  flex-direction: column;
  gap: clamp(80px, 10vw, 140px);
  position: relative;
  z-index: 1;
}

.feature-row {
  display: grid;
  grid-template-columns: 110px 1fr 1.1fr;
  gap: clamp(20px, 4vw, 60px);
  align-items: center;
  position: relative;
}
.feature-row--reverse {
  grid-template-columns: 1.1fr 1fr 110px;
}
.feature-row--reverse .feature-row__num { order: 3; text-align: right; }
.feature-row--reverse .feature-row__media { order: 2; }
.feature-row--reverse .feature-row__body { order: 1; }

.feature-row__num {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.feature-row__num-en {
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--c-text-mute);
  display: inline-block;
  padding: 0;
  width: fit-content;
  font-weight: 500;
}
.feature-row--reverse .feature-row__num-en { margin-left: auto; }
.feature-row__num-big {
  font-family: var(--f-en);
  font-size: clamp(80px, 12vw, 160px);
  line-height: 0.9;
  color: var(--c-line);
  letter-spacing: 0.02em;
  position: relative;
}

.feature-row__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.feature-row__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
  transition: transform .8s var(--ease-out);
}
.feature-row:hover .feature-row__media img { transform: scale(1.04); }

.feature-row__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-en);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-text-mute);
  margin-bottom: 18px;
}
.feature-row__tag::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--c-dark);
}
.feature-row__title {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.45;
  letter-spacing: 0.04em;
  color: var(--c-dark);
  margin-bottom: 22px;
}
.feature-row__title span {
  display: block;
  font-family: var(--f-en);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--c-text-mute);
  font-weight: 500;
  margin-top: 10px;
}
.feature-row__text {
  font-size: 15.5px;
  line-height: 2.1;
  color: var(--c-text);
  letter-spacing: 0.05em;
}
.feature-row__text strong {
  font-weight: 700;
  color: var(--c-dark);
  border-bottom: 1px solid var(--c-dark);
  padding-bottom: 1px;
}

.feature-row__quotes {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
  padding: 22px 24px 20px;
  background: var(--c-bg-warm);
  border-left: 3px solid var(--c-dark);
}
.feature-row__quotes li {
  position: relative;
  padding: 0 0 0 24px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--c-dark);
}
.feature-row__quotes li::before {
  content: "「";
  position: absolute;
  left: 0;
  top: -2px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 1.15em;
  color: var(--c-dark);
}
.feature-row__quotes li::after {
  content: "」";
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 1.15em;
  color: var(--c-dark);
  margin-left: 2px;
}

.feature__after {
  margin-top: clamp(56px, 8vw, 96px);
  text-align: center;
  position: relative;
  z-index: 1;
}

/* ---------- Future ---------- */
.section--future {
  background-color: var(--c-dark);
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 80px 80px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--future::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}
.future__bg-num { display: none; }

.section--future > .container { position: relative; z-index: 1; }

.future__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.future-card {
  background: #fff;
  color: var(--c-dark);
  transition: transform .35s var(--ease-out);
  position: relative;
}
.future-card:hover { transform: translateY(-4px); }
.future-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.future-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}
.future-card h3 {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.5;
  padding: 18px 18px 8px;
  letter-spacing: 0.04em;
}
.future-card p {
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--c-text-mute);
  padding: 0 18px 22px;
  letter-spacing: 0.04em;
}
.future__note {
  text-align: center;
  font-size: 12.5px;
  color: rgba(255,255,255,0.6);
  line-height: 1.85;
  letter-spacing: 0.06em;
}

/* ---------- Future (bright variant) ---------- */
.section--future-bright {
  background-color: #fdf8eb;
  background-image:
    radial-gradient(circle at 20% 18%, rgba(255, 224, 102, 0.35) 0%, transparent 45%),
    radial-gradient(circle at 80% 75%, rgba(255, 178, 92, 0.28) 0%, transparent 50%),
    radial-gradient(circle at 50% 95%, rgba(255, 235, 130, 0.2) 0%, transparent 60%);
  color: var(--c-dark);
}
.section--future-bright::after { display: none; }
.section--future-bright .future__bg-num { display: none; }
.section--future-bright .section-head__num { color: var(--c-text-mute); }
.section--future-bright .section-head__num::after { background: var(--c-text-mute); }
.section--future-bright .section-head__en,
.section--future-bright .section-head__ja { color: var(--c-dark); }
.section--future-bright .future__note { color: var(--c-text-mute); }

.section--future-bright { padding-block: clamp(48px, 6vw, 84px); }
.section--future-bright .section-head { margin-bottom: clamp(28px, 4vw, 48px); }

/* Future hero image (replaces the bubbles scene, mirrors .problem__hero) */
.future__hero {
  display: block;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}
.future__hero img {
  display: block;
  width: 100%;
  height: auto;
}
@media (min-width: 769px) {
  .future__hero img {
    -webkit-mask-image: radial-gradient(ellipse 92% 88% at center, #000 50%, transparent 100%);
    mask-image: radial-gradient(ellipse 92% 88% at center, #000 50%, transparent 100%);
  }
}

.future__scene {
  display: grid;
  grid-template-columns: minmax(220px, 300px) 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  max-width: 960px;
  margin: 0 auto 28px;
}

.future__person {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  background: #e9f1f7;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18), 0 0 0 5px #fff inset;
}
.future__person img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 22%;
}

.future__bubbles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}

.future__bubble {
  --bg: #fff;
  position: relative;
  background: var(--bg);
  border: 2.5px solid var(--c-dark);
  border-radius: 14px;
  padding: 12px 14px 13px;
  font-family: var(--f-ja);
  color: var(--c-dark);
  box-shadow: 4px 4px 0 var(--c-dark);
  letter-spacing: 0.03em;
}
.future__bubble strong {
  display: block;
  font-weight: 900;
  font-size: clamp(14px, 1.35vw, 16px);
  line-height: 1.4;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}
.future__bubble span {
  display: block;
  font-weight: 500;
  font-size: clamp(11.5px, 1vw, 12.5px);
  line-height: 1.5;
  color: var(--c-text-mute);
}

.future__bubble--2 { --bg: #fff5b3; }
.future__bubble--4 { --bg: #ffd9bf; }
/* 5th bubble fills both columns at the bottom */
.future__bubble--5 { grid-column: 1 / -1; }

/* Small left-pointing tail for left-column bubbles (1, 3) toward the person */
.future__bubble--1::before,
.future__bubble--1::after,
.future__bubble--3::before,
.future__bubble--3::after,
.future__bubble--5::before,
.future__bubble--5::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0;
  height: 0;
  border-style: solid;
  translate: 0 -50%;
}
.future__bubble--1::before,
.future__bubble--3::before,
.future__bubble--5::before {
  left: -14px;
  border-width: 8px 14px 8px 0;
  border-color: transparent var(--c-dark) transparent transparent;
}
.future__bubble--1::after,
.future__bubble--3::after,
.future__bubble--5::after {
  left: -10px;
  border-width: 6px 11px 6px 0;
  border-color: transparent var(--bg) transparent transparent;
}

/* ---------- Data (real customer demographics) ---------- */
.section--data {
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}
.section--data::before {
  content: "DATA.";
  position: absolute;
  top: 30px; right: -20px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.85;
  color: var(--c-line);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.02em;
}
.section--data > .container { position: relative; z-index: 1; }

.data__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 64px);
  max-width: 760px;
  margin: 0 auto;
  align-items: start;
}

.data__item {
  text-align: center;
}

.data__chart {
  position: relative;
  width: clamp(200px, 24vw, 260px);
  aspect-ratio: 1;
  border-radius: 50%;
  margin: 0 auto 24px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
}

.data__chart--age {
  background: conic-gradient(
    #b8b8b8 0deg 18deg,
    #8a8a8a 18deg 57.6deg,
    #5a5a5a 57.6deg 108deg,
    #ffe066 108deg 205.2deg,
    #1f2740 205.2deg 313.2deg,
    #4a5470 313.2deg 360deg
  );
}
.data__chart--gender {
  background: conic-gradient(
    #1f2740 0deg 72deg,
    #ffe066 72deg 360deg
  );
}

.data__slice-label {
  position: absolute;
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(11px, 1.2vw, 13px);
  color: #fff;
  letter-spacing: 0.04em;
  white-space: nowrap;
  translate: -50% -50%;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.data__slice-label.is-yellow {
  color: var(--c-dark);
  text-shadow: none;
}

/* Age chart label positions (approx midpoints, r=30%) */
.data__slice-label--20 { top: 20.4%; left: 54.7%; }
.data__slice-label--30 { top: 26.3%; left: 68.4%; }
.data__slice-label--40 { top: 46.2%; left: 79.8%; }
.data__slice-label--50 { top: 77.5%; left: 61.9%; font-size: clamp(13px, 1.5vw, 16px); }
.data__slice-label--60 { top: 55.6%; left: 20.5%; }
.data__slice-label--70 { top: 22.5%; left: 38.1%; }

/* Gender chart label positions */
.data__slice-label--men   { top: 25.7%; left: 67.6%; }
.data__slice-label--women { top: 74.3%; left: 32.4%; font-size: clamp(13px, 1.5vw, 16px); }

.data__caption {
  font-family: var(--f-ja);
  color: var(--c-dark);
}
.data__caption span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-text-mute);
  margin-bottom: 4px;
  font-weight: 500;
}
.data__caption strong {
  display: inline-flex;
  align-items: baseline;
  font-weight: 900;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: 0.04em;
  color: var(--c-dark);
}
.data__caption em {
  font-family: var(--f-en);
  font-style: normal;
  font-size: clamp(36px, 4.4vw, 52px);
  line-height: 1;
  margin: 0 4px;
  color: var(--c-dark);
}

/* ---------- Safety ---------- */
.section--safety {
  background-color: var(--c-dark);
  background-image: linear-gradient(rgba(0,0,0,0.78), rgba(0,0,0,0.86)), var(--img-safety);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.section--safety::before {
  content: "TRUST.";
  position: absolute;
  bottom: -30px;
  left: -10px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.85;
  color: rgba(255,255,255,0.06);
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.02em;
}
.section--safety > .container { position: relative; z-index: 1; }
.section--safety .section-head__num { color: rgba(255,255,255,0.6); }
.section--safety .section-head__num::after { background: rgba(255,255,255,0.6); }
.section--safety .section-head__en,
.section--safety .section-head__ja { color: #fff; }

.safety__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.safety-card {
  position: relative;
  background: #fff;
  border-top: 1px solid var(--c-dark);
  padding: 32px 8px 28px;
  transition: transform .35s var(--ease-out);
}
.safety-card:hover { transform: translateY(-4px); }
.safety-card__num {
  display: inline-block;
  font-family: var(--f-en);
  font-size: 16px;
  line-height: 1;
  color: var(--c-text-mute);
  letter-spacing: 0.16em;
  margin-bottom: 22px;
}
.safety-card h3 {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
  color: var(--c-dark);
}
.safety-card p {
  font-size: 14.5px;
  line-height: 2;
  color: var(--c-text-mute);
  letter-spacing: 0.04em;
}

/* ---------- Facility ---------- */
.section--facility {
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}
.section--facility::before {
  content: "FACILITY.";
  position: absolute;
  top: -10px; right: -20px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.85;
  color: var(--c-line);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.02em;
}
.section--facility > .container { position: relative; z-index: 1; }

.facility__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
/* center the trailing 2 cards on the last row of a 4-col grid (10 items) */
.facility-card:nth-child(9) { grid-column-start: 2; }

.facility-card {
  position: relative;
  background: #0d1226;
  overflow: hidden;
  box-shadow: 0 6px 22px rgba(0,0,0,0.08);
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out);
}
.facility-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(0,0,0,0.14);
}

.facility-card__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Astro-styled image: cool blue-purple, high contrast, glow, night, flash-like */
.facility-card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #0a0e22;
}
.facility-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter:
    contrast(1.4)
    saturate(0.4)
    brightness(0.96)
    hue-rotate(-12deg);
  transition: transform .8s var(--ease-out), filter .35s var(--ease);
}
.facility-card:hover .facility-card__media img {
  transform: scale(1.05);
  filter:
    contrast(1.5)
    saturate(0.5)
    brightness(1.02)
    hue-rotate(-10deg);
}
/* Color tint overlay (blue-purple) */
.facility-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 28% 18%, rgba(200, 215, 255, 0.32) 0%, transparent 55%),
    linear-gradient(160deg, rgba(70, 95, 175, 0.45) 0%, rgba(155, 105, 200, 0.32) 55%, rgba(20, 25, 70, 0.55) 100%);
  mix-blend-mode: color;
  pointer-events: none;
  z-index: 1;
}
/* Flash highlight glow on top-left (screen blend) */
.facility-card__media::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 35% at 22% 14%, rgba(255, 255, 255, 0.32) 0%, transparent 65%),
    radial-gradient(ellipse 70% 50% at 100% 100%, rgba(40, 30, 80, 0.45) 0%, transparent 60%);
  mix-blend-mode: screen;
  pointer-events: none;
  z-index: 2;
}

.facility-card__caption {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px 18px;
  background: #fff;
  border-top: 1px solid var(--c-line);
  flex: 1;
}

.facility-card__title {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: 15.5px;
  letter-spacing: 0.04em;
  color: var(--c-dark);
  line-height: 1.45;
}

.facility-card__sub {
  font-family: var(--f-ja);
  font-size: 13px;
  color: var(--c-text-mute);
  line-height: 1.7;
  letter-spacing: 0.03em;
}

/* ---------- Trial Day (体験の流れ) ---------- */
.section--trial {
  background: #fafafa;
  position: relative;
  overflow: hidden;
}
.section--trial::before {
  content: "TRIAL";
  position: absolute;
  top: 30px; left: -20px;
  font-family: var(--f-en);
  font-size: clamp(120px, 18vw, 240px);
  line-height: 0.85;
  color: var(--c-line);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
  letter-spacing: 0.02em;
}
.section--trial > .container { position: relative; z-index: 1; }

.trial__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 1100px;
}

.trial-step {
  position: relative;
  background: #fff;
  border: 2px solid var(--c-dark);
  border-radius: 16px;
  padding: 26px 22px 24px;
  box-shadow: 5px 5px 0 var(--c-dark);
  display: flex;
  flex-direction: column;
}

.trial-step__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.trial-step__num {
  font-family: var(--f-en);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1;
  color: #d61c1c;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.trial-step__time {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  background: #fff;
  border: 2px solid var(--c-dark);
  border-radius: 999px;
  padding: 7px 18px 6px;
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(14px, 1.4vw, 16px);
  color: var(--c-dark);
  box-shadow: 3px 3px 0 var(--c-dark);
  white-space: nowrap;
}
.trial-step__time i {
  font-style: normal;
  font-size: 0.78em;
  margin-left: 1px;
}
/* speech bubble tail pointing down-left toward the number */
.trial-step__time::before,
.trial-step__time::after {
  content: "";
  position: absolute;
  bottom: -10px;
  width: 0;
  height: 0;
  border-style: solid;
}
.trial-step__time::before {
  left: 18px;
  border-width: 10px 8px 0 0;
  border-color: var(--c-dark) transparent transparent transparent;
}
.trial-step__time::after {
  left: 21px;
  bottom: -6px;
  border-width: 7px 5px 0 0;
  border-color: #fff transparent transparent transparent;
}

.trial-step__title {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(15px, 1.5vw, 17.5px);
  line-height: 1.45;
  color: #d61c1c;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 2px dashed rgba(214, 28, 28, 0.25);
}

.trial-step__text {
  font-family: var(--f-ja);
  font-size: clamp(12.5px, 1.05vw, 13.5px);
  line-height: 1.75;
  color: var(--c-text);
  letter-spacing: 0.03em;
}
.trial-step__text strong {
  font-weight: 900;
  color: var(--c-dark);
  background: linear-gradient(transparent 60%, #ffe066 60%);
  padding: 0 2px;
}

.trial__total {
  margin-top: clamp(28px, 4vw, 44px);
  text-align: center;
  font-family: var(--f-ja);
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 18px);
  letter-spacing: 0.05em;
  color: var(--c-dark);
}
.trial__total strong {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--f-en);
  font-weight: 400;
  font-size: 1.6em;
  color: #d61c1c;
  margin: 0 4px;
  line-height: 1;
}
.trial__total strong i {
  font-style: normal;
  font-family: var(--f-ja);
  font-size: 0.5em;
  font-weight: 900;
  color: #d61c1c;
  margin-left: 2px;
}

/* ---------- Instagram ---------- */
.section--instagram {
  background: var(--c-bg);
  position: relative;
}
.instagram__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-bottom: 40px;
  background: transparent;
}
.instagram__item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--c-dark);
}
.instagram__item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease-out), filter .35s var(--ease);
  filter: contrast(1.02) saturate(0.92) brightness(0.98);
}
.instagram__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background .35s var(--ease);
  pointer-events: none;
}
.instagram__item:hover img { transform: scale(1.07); filter: contrast(1.08) saturate(1.12); }
.instagram__item:hover::after { background: rgba(0, 0, 0, 0.18); }

.instagram__cta { text-align: center; }

/* ---------- CTA Mid ---------- */
.section--cta-mid {
  background-color: var(--c-dark) !important;
  background-image: linear-gradient(rgba(0,0,0,0.62), rgba(0,0,0,0.78)), var(--img-solution);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

/* ---------- CTA Final ---------- */
.section--cta-final {
  background-color: var(--c-dark);
  background-image: linear-gradient(rgba(0,0,0,0.68), rgba(0,0,0,0.82)), var(--img-cta-final);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
  position: relative;
  overflow: hidden;
  padding-block: clamp(80px, 12vw, 140px);
}
.cta-final__pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.06) 1.5px, transparent 1.5px),
    linear-gradient(135deg, transparent 0%, transparent 50%, rgba(255, 255, 255, 0.04) 50%, rgba(255, 255, 255, 0.04) 100%);
  background-size: 28px 28px, 100% 100%;
  pointer-events: none;
}

.cta-final__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
}
.cta-final__lead {
  font-family: var(--f-en);
  font-size: 12px;
  letter-spacing: 0.5em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
  display: inline-block;
  padding: 0;
  border: none;
}
.cta-final__headline {
  font-family: var(--f-ja);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 64px);
  line-height: 1.35;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.cta-final__headline span { display: block; }
.cta-final__headline em {
  display: inline-block;
  font-family: var(--f-en);
  font-style: normal;
  color: #fff;
  background: transparent;
  font-size: 1.3em;
  margin: 0 4px;
  padding: 0;
  line-height: 1;
  border-bottom: 1px solid #fff;
  padding-bottom: 2px;
}

.cta-final__sub {
  font-size: 15.5px;
  line-height: 2.05;
  color: rgba(255,255,255,0.85);
  margin-bottom: 48px;
  letter-spacing: 0.06em;
}

.cta-final__btns {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.cta-final__tel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-top: 32px;
  border-top: 1px dashed rgba(255,255,255,0.25);
}
.cta-final__tel span {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.7);
  font-weight: 700;
}
.cta-final__tel a {
  font-family: var(--f-en);
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 0.06em;
  color: #fff;
}
.cta-final__tel small {
  font-size: 11.5px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.08em;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--c-dark-2);
  color: #fff;
  padding: 64px 0 28px;
}
.footer__main {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 24px;
}
.footer__right {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.footer__logo { display: inline-flex; align-items: center; margin-bottom: 22px; }
.footer__logo-img {
  display: block;
  height: 38px;
  width: auto;
  filter: invert(1) brightness(1.4) grayscale(1);
  transition: opacity .25s var(--ease);
}
.footer__logo:hover .footer__logo-img { opacity: 0.78; }

.footer__info {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 8px 16px;
  font-size: 12.5px;
  line-height: 1.85;
}
.footer__info dt {
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
}
.footer__info dd { color: rgba(255,255,255,0.78); letter-spacing: 0.04em; }
.footer__info a { color: rgba(255,255,255,0.85); }

.footer__nav ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 24px;
}
.footer__nav a {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer__nav a::before {
  content: "→";
  color: rgba(255,255,255,0.5);
  font-family: var(--f-en);
}

.footer__social {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__social-label {
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: rgba(255,255,255,0.5);
}
.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--f-en);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: #fff;
  padding: 0;
  background: transparent;
  border: none;
  width: fit-content;
  border-bottom: 1px solid rgba(255,255,255,0.4);
  padding-bottom: 4px;
  transition: border-color .3s var(--ease), color .3s var(--ease);
}
.footer__social-link:hover { border-color: #fff; opacity: 1; }
.footer__social-link svg { flex-shrink: 0; }

.footer__copy {
  text-align: center;
  font-family: var(--f-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.4);
}

/* ---------- Fixed CTA ---------- */
.fixed-cta {
  position: fixed;
  left: 0; right: 0;
  bottom: 0;
  z-index: 99;
  display: none;
  background: var(--c-dark);
  padding: 10px;
  gap: 10px;
  transform: translateY(100%);
  transition: transform .35s var(--ease-out);
}
.fixed-cta.is-visible { transform: translateY(0); }
.fixed-cta__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: 2px solid;
}
.fixed-cta__btn--tel {
  background: #fff;
  color: var(--c-dark);
  border-color: #fff;
}
.fixed-cta__btn--reserve {
  background: #ffe066;
  color: var(--c-dark);
  border-color: #ffe066;
}

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   Responsive
   ========================================================= */

/* ---------- Tablet (≤1024px) ---------- */
@media (max-width: 1024px) {
  .header__nav-list { gap: 16px; }
  .header__nav-list a { font-size: 12px; }

  .section--hero {
    height: auto;
    min-height: 0;
    max-height: none;
  }
  .hero__inner {
    display: flex;
    flex-direction: column;
    gap: clamp(28px, 4vw, 48px);
    grid-template-areas: none;
    grid-template-columns: none;
    padding-top: clamp(40px, 6vw, 80px);
    padding-bottom: clamp(60px, 8vw, 100px);
  }
  .hero__brand-block,
  .hero__hex-list,
  .hero__promo,
  .hero__main-cta {
    align-self: stretch;
  }
  .hero__hex-list {
    justify-content: center;
    margin-top: clamp(8px, 2vw, 24px);
  }
  .hero__promo {
    margin: clamp(20px, 3vw, 36px) auto 0;
    max-width: 600px;
  }
  .hero__main-cta {
    margin: clamp(8px, 2vw, 16px) auto 0;
    max-width: 600px;
  }

  .problem__grid { grid-template-columns: 1fr; gap: 24px; }
  .problem__media { max-width: none; width: 100%; aspect-ratio: 16/9; margin-inline: 0; }

  .problem__bubble {
    align-self: stretch;
    margin-top: 12px;
  }
  .problem__bubble::before {
    left: 36px;
    top: -22px;
    border-width: 0 12px 22px 12px;
    border-color: transparent transparent var(--c-dark) transparent;
  }
  .problem__bubble::after {
    left: 38px;
    top: -18px;
    border-width: 0 10px 19px 10px;
    border-color: transparent transparent #fff transparent;
  }

  .concept__inner { grid-template-columns: 1fr; gap: 36px; }

  .solution__grid { grid-template-columns: 1fr; gap: 36px; }
  .solution__media { max-width: none; width: 100%; margin-inline: 0; aspect-ratio: 16/9; }
  .solution__media--gallery { aspect-ratio: auto; }

  .feature-row, .feature-row--reverse {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .feature-row--reverse .feature-row__num,
  .feature-row--reverse .feature-row__media,
  .feature-row--reverse .feature-row__body { order: initial; }
  .feature-row__num { flex-direction: row; align-items: center; }
  .feature-row__num-big { font-size: 80px; }

  .future__list { grid-template-columns: repeat(2, 1fr); }
  .safety__list { grid-template-columns: repeat(2, 1fr); }
  .facility__grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .facility-card:nth-child(9) { grid-column-start: auto; }
  .trial__list { grid-template-columns: repeat(2, 1fr); }
  .instagram__grid { grid-template-columns: repeat(5, 1fr); gap: 3px; }

  .cta-mid { grid-template-columns: 1fr; text-align: center; }
  .cta-mid__btns { justify-content: center; }
}

/* ---------- Mobile (≤768px) ---------- */
@media (max-width: 768px) {
  body { font-size: 15px; line-height: 1.85; }
  :root { --header-h: 60px; --section-py: clamp(56px, 14vw, 88px); --container-pad: 20px; }

  /* ---- Header ---- */
  .header__inner { padding-block: 10px; gap: 12px; }
  .header__cta { display: none; }
  .header__logo-img { height: 30px; }
  .header__nav {
    position: fixed;
    top: 0; right: 0;
    width: 86%;
    max-width: 340px;
    height: 100vh;
    background: var(--c-bg);
    padding: calc(var(--header-h) + 24px) 28px 28px;
    transform: translateX(100%);
    transition: transform .35s var(--ease-out);
    border-left: 1px solid var(--c-line);
    overflow-y: auto;
  }
  .header__nav.is-open { transform: translateX(0); }
  .header__nav-list { flex-direction: column; gap: 0; }
  .header__nav-list li { border-bottom: 1px solid var(--c-line); }
  .header__nav-list li:first-child { border-top: 1px solid var(--c-line); }
  .header__nav-list a {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 4px;
    font-size: 15px;
    color: var(--c-dark);
  }
  .header__nav-list a i { font-size: 12px; }
  .header__nav-list a::after { display: none; }
  .header__hamburger { display: block; }

  /* ---- Hero (LP layout, SP) ---- */
  .section--hero {
    min-height: 0;
    padding-bottom: 0;
  }
  .hero__topbar { padding: 10px 14px; }
  .hero__topbar-text {
    font-size: 11px;
    letter-spacing: 0.08em;
    line-height: 1.7;
    display: inline-block;
  }

  .hero__inner {
    padding-top: 28px;
    padding-bottom: 28px;
    gap: 24px;
  }

  .hero__num { margin-bottom: 14px; font-size: 10px; gap: 10px; }
  .hero__num i { width: 24px; }
  .hero__headline { font-size: 28px; line-height: 1.5; margin-bottom: 18px; letter-spacing: 0.04em; }
  .hero__headline em::after { bottom: -6px; height: 2px; }
  .hero__catch { font-size: 13.5px; line-height: 1.85; letter-spacing: 0.04em; }

  .hero__hex-list {
    gap: 3px;
    margin-top: 10px;
    flex-wrap: nowrap;
  }
  .hero__hex {
    width: calc(100% / 3 - 2px);
    aspect-ratio: 1 / 1.12;
    filter:
      drop-shadow(0 10px 18px rgba(0,0,0,0.42))
      drop-shadow(0 3px 6px rgba(0,0,0,0.28));
  }
  .hero__hex span {
    font-size: clamp(18px, 5.4vw, 24px);
    letter-spacing: 0.04em;
    line-height: 1.25;
  }

  .hero__promo {
    padding: 28px 22px 24px;
    margin-top: 18px;
    box-shadow: 4px 4px 0 rgba(0,0,0,0.6);
  }
  .hero__promo-ribbon {
    padding: 7px 18px;
    font-size: 12px;
    letter-spacing: 0.16em;
  }
  .hero__promo-title { font-size: 24px; line-height: 1.4; margin-bottom: 12px; }
  .hero__promo-desc { font-size: 13px; line-height: 1.85; }
  .hero__promo-desc em { font-size: 1.12em; margin-top: 4px; }

  .hero__main-cta {
    padding: 18px 24px;
    font-size: 16px;
    letter-spacing: 0.06em;
    gap: 12px;
  }
  .hero__main-cta-arrow { width: 28px; height: 28px; font-size: 0.95em; }

  .hero__rule {
    position: relative;
    background: rgba(0,0,0,0.4);
    border-top: 1px solid rgba(255,255,255,0.18);
    border-bottom: none;
    padding: 12px var(--container-pad);
  }
  .hero__rule span { font-size: 9px; letter-spacing: 0.3em; color: rgba(255,255,255,0.7); }

  /* ---- Section Heading ---- */
  .section-head { margin-bottom: clamp(36px, 8vw, 56px); }
  .section-head__num { font-size: 10px; letter-spacing: 0.3em; gap: 10px; margin-bottom: 12px; }
  .section-head__num::after { width: 26px; }
  .section-head__en { font-size: clamp(36px, 11vw, 56px); margin-bottom: 12px; }
  .section-head__ja { font-size: 17px; line-height: 1.7; letter-spacing: 0.06em; }
  .section-head__note { font-size: 11px; margin-top: 10px; }

  /* ---- Problem ---- */
  .section--problem { padding-top: 0; padding-bottom: 0; }
  .problem__hero { max-width: none; margin: 0; }
  .problem__hero + .container { padding-top: clamp(40px, 10vw, 64px); padding-bottom: clamp(40px, 10vw, 64px); }

  .problem__list { gap: 0; }
  .problem__item { padding: 18px 12px; font-size: 14.5px; gap: 14px; }
  .problem__item-mark { font-size: 14px; padding-top: 3px; }
  .problem__answer { font-size: 18px; padding-top: 48px; margin-top: 0; }
  .problem__answer::before { height: 32px; }

  .problem__list--bubbles { gap: 14px; }
  .problem__list--bubbles .problem__item {
    padding: 16px 18px 16px 56px;
    box-shadow: 4px 4px 0 var(--c-dark);
  }
  .problem__list--bubbles .problem__item-text { font-size: 14px; }
  .problem__list--bubbles .problem__item-mark { width: 32px; height: 32px; font-size: 12px; }
  .problem__list--bubbles .problem__item:nth-child(even) { margin-left: 12px; }

  .problem__media-tag { padding: 8px 12px 6px; }
  .problem__media-tag span { font-size: 9px; }
  .problem__media-tag strong { font-size: 16px; }

  .problem__bubble {
    padding: 22px 22px 24px;
    margin-bottom: 24px;
    font-size: 19px;
    line-height: 1.6;
    box-shadow: 5px 5px 0 var(--c-dark);
  }
  .problem__bubble-sub { font-size: 10px; letter-spacing: 0.3em; margin-bottom: 8px; }

  /* ---- Concept ---- */
  .concept__headline { font-size: 28px; margin-top: 14px; }
  .concept__lead { font-size: 16px; line-height: 1.85; }
  .concept__text { font-size: 14px; line-height: 2; }
  .concept__text strong { font-size: 1.15em; }
  .concept__sign { font-size: 14px; margin-top: 26px; padding-top: 20px; }
  .concept__chip { font-size: 11px; }

  /* ---- Solution ---- */
  .section--solution::before { font-size: 100px; top: 24px; right: -10px; }
  .solution__pickup { font-size: 20px; line-height: 1.6; }
  .solution__pickup span { font-size: 10px; }
  .solution__text { font-size: 14px; line-height: 1.95; }
  .solution__compare { padding: 18px 20px; }
  .solution__compare-q { font-size: 14.5px; }
  .solution__compare-a p { font-size: 13.5px; }
  .solution__media-stamp { font-size: 12px; padding: 10px 12px 8px; top: 14px; left: 14px; }

  /* ---- CTA Mid ---- */
  .cta-mid { padding: 0; }
  .cta-mid__copy { font-size: 19px; line-height: 1.7; }
  .cta-mid__btns { flex-direction: column; width: 100%; gap: 12px; }
  .cta-mid__btns .btn { width: 100%; }

  /* ---- Feature ---- */
  .section--feature::before { font-size: 100px; top: 24px; }
  .feature-row__num { gap: 14px; }
  .feature-row__num-big { font-size: 60px; }
  .feature-row__num-en { font-size: 10px; }
  .feature-row__title { font-size: 22px; line-height: 1.55; }
  .feature-row__title span { font-size: 11px; margin-top: 8px; }
  .feature-row__text { font-size: 14.5px; line-height: 1.95; }
  .feature__after { margin-top: 56px; }
  .feature__after .btn { width: 100%; }

  /* ---- Future ---- */
  .future__list { grid-template-columns: 1fr; gap: 16px; }
  .future-card h3 { font-size: 16px; padding: 16px 16px 6px; }
  .future-card p { font-size: 13px; padding: 0 16px 18px; }
  .future__note { font-size: 11.5px; padding-inline: 4px; }

  .future__scene {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 420px;
    margin: 0 auto 24px;
  }
  .future__person {
    width: 180px;
    margin: 0 auto;
  }
  .future__bubbles { grid-template-columns: 1fr; gap: 10px; }
  .future__bubble--5 { grid-column: auto; }
  .future__bubble strong { font-size: 14.5px; }
  .future__bubble span { font-size: 12.5px; }
  /* Hide tails on mobile (vertical stack doesn't need direction) */
  .future__bubble::before,
  .future__bubble::after { display: none; }

  /* Future hero (mirrors problem__hero SP behavior) */
  .section--future-bright { padding-top: 0; padding-bottom: 0; }
  .future__hero { max-width: none; margin: 0; }
  .future__hero + .container { padding-top: clamp(40px, 10vw, 64px); padding-bottom: clamp(40px, 10vw, 64px); }

  /* ---- Trial Day ---- */
  .section--trial::before { font-size: 110px; }
  .trial__list { grid-template-columns: 1fr; gap: 14px; }
  .trial-step { padding: 22px 18px 20px; box-shadow: 4px 4px 0 var(--c-dark); }
  .trial-step__num { font-size: 26px; }
  .trial-step__time { font-size: 13px; padding: 6px 14px 5px; }
  .trial-step__title { font-size: 15px; padding-bottom: 8px; margin-bottom: 10px; }
  .trial-step__text { font-size: 12.5px; line-height: 1.7; }
  .trial__total strong { font-size: 1.4em; }

  /* ---- Data ---- */
  .section--data::before { font-size: 110px; }
  .data__grid { grid-template-columns: 1fr; gap: 32px; max-width: 280px; }
  .data__chart { width: 220px; }
  .data__slice-label { font-size: 11.5px; }
  .data__slice-label--50 { font-size: 14px; }
  .data__slice-label--women { font-size: 14px; }
  .data__caption strong { font-size: 17px; }
  .data__caption em { font-size: 38px; }

  /* ---- Safety ---- */
  .section--safety::before { font-size: 110px; bottom: -20px; left: -6px; }
  .safety__list { grid-template-columns: 1fr; gap: 0; }
  .safety-card { padding: 26px 4px 24px; }
  .safety-card__num { font-size: 14px; margin-bottom: 14px; }
  .safety-card h3 { font-size: 17px; margin-bottom: 10px; }
  .safety-card p { font-size: 14px; line-height: 1.9; }

  /* ---- Facility ---- */
  .section--facility::before { font-size: 110px; }
  .facility__grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .facility-card:nth-child(9) { grid-column-start: auto; }
  .facility-card__caption { padding: 12px 14px 14px; gap: 4px; }
  .facility-card__title { font-size: 13.5px; }
  .facility-card__sub { font-size: 11.5px; line-height: 1.6; }

  /* ---- Instagram ---- */
  .section--instagram { padding-block: clamp(48px, 12vw, 72px); }
  .instagram__grid { grid-template-columns: repeat(5, 1fr); gap: 2px; margin-bottom: 28px; }
  .instagram__cta .btn { font-size: 13px; }

  /* ---- CTA Final ---- */
  .section--cta-final { padding-block: clamp(64px, 14vw, 96px); }
  .cta-final__lead { font-size: 11px; letter-spacing: 0.4em; }
  .cta-final__headline { font-size: 28px; line-height: 1.5; margin-bottom: 22px; }
  .cta-final__headline em { font-size: 1.2em; margin: 0 2px; }
  .cta-final__sub { font-size: 14px; line-height: 1.95; margin-bottom: 36px; }
  .cta-final__btns { flex-direction: column; width: 100%; max-width: 340px; margin: 0 auto 36px; gap: 12px; }
  .cta-final__btns .btn { width: 100%; }
  .cta-final__tel { padding-top: 24px; }
  .cta-final__tel a { font-size: 26px; }
  .cta-final__tel small { font-size: 10.5px; }

  /* ---- Footer ---- */
  .footer { padding: 48px 0 84px; }
  .footer__main { grid-template-columns: 1fr; gap: 28px; padding-bottom: 28px; margin-bottom: 20px; }
  .footer__right { gap: 24px; }
  .footer__nav ul { grid-template-columns: repeat(2, 1fr); gap: 12px 20px; }
  .footer__copy { font-size: 10px; letter-spacing: 0.25em; }

  /* ---- Fixed CTA ---- */
  .fixed-cta { display: flex; }
  .fixed-cta__btn--reserve {
    background: #ffe066;
    color: var(--c-dark);
    border-color: #ffe066;
  }
}

/* ---------- Small Mobile (≤480px) ---------- */
@media (max-width: 480px) {
  :root { --container-pad: 18px; }

  .hero__headline { font-size: 26px; line-height: 1.6; }
  .hero__catch { font-size: 13px; }
  .hero__hex {
    width: calc(100% / 3 - 2px);
  }
  .hero__hex span {
    font-size: 28px;
    line-height: 1.2;
  }
  .hero__promo-title { font-size: 22px; }
  .hero__main-cta { font-size: 15px; padding: 16px 20px; }

  .feature-row__title { font-size: 20px; }
  .feature-row__num-big { font-size: 52px; }

  .cta-final__headline { font-size: 26px; }
  .cta-final__tel a { font-size: 23px; }
}