/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --navy-deep:  #0B2545;
  --navy:       #1B3B6F;
  --navy-light: #2B5797;
  --gold:       #C9A84C;
  --gold-light: #E2C47B;
  --gold-pale:  #F8F3E6;
  --white:      #FFFFFF;
  --off-white:  #F8F6F0;
  --warm-gray:  #E5E0D8;
  --text-body:  #3D3A35;
  --text-light: #6B6862;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans:  'Noto Sans JP', sans-serif;

  --shadow-sm: 0 2px 10px rgba(180,40,0,.10);
  --shadow-md: 0 4px 24px rgba(180,40,0,.16);
  --shadow-lg: 0 8px 48px rgba(180,40,0,.22);
  --radius:    10px;
  --radius-lg: 18px;
  --trans:     all .3s ease;

  /* 熱量カラー（主役） */
  --red:        #CC2200;
  --red-dark:   #991500;
  --red-bright: #E8341A;
  --orange:     #E86310;
  --orange-light:#FF8438;
  --yellow-hot: #FFD000;
  --yellow-warm:#FFBC00;
  /* 背景・補助 */
  --cream:      #FFF8EE;
  --charcoal:   #1C1C1C;
  --dark-red:   #1A0500;
  --dark-bg:    #040C18;

  /* ヘッダー高さ（fixed header 補正用） */
  --header-h: 88px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-sans);
  color: var(--text-body);
  line-height: 1.85;
  background: var(--white);
  overflow-x: hidden;
}
img  { max-width: 100%; height: auto; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.45; }
address { font-style: normal; }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
}
.section { padding: 88px 0; }

/* Section headers */
.section-head { text-align: center; margin-bottom: 60px; }
.section-head-light .section-label { color: var(--gold-light); }

.section-label {
  display: block;
  font-family: var(--font-sans);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .35em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 18px;
}
.section-title-light {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
}
.title-deco {
  width: 72px; height: 3px;
  background: var(--red);
  margin: 0 auto;
  border-radius: 2px;
}
.title-deco-gold { background: var(--gold); }

/* Section head bold variant */
.section-head-bold { margin-bottom: 60px; }
.section-head-bold .section-label {
  display: inline-block;
  background: linear-gradient(90deg, var(--red), var(--orange));
  color: var(--white);
  padding: 6px 20px;
  border-radius: 3px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .22em;
  margin-bottom: 18px;
  box-shadow: 0 3px 12px rgba(204,34,0,.35);
}
.section-head-bold .section-title {
  font-size: clamp(1.9rem, 4.2vw, 2.9rem);
  letter-spacing: .04em;
  color: var(--charcoal);
}
.section-head-bold .section-title-light {
  font-size: clamp(1.9rem, 4.2vw, 2.9rem);
  letter-spacing: .04em;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: .95rem;
  padding: 15px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--trans);
  white-space: nowrap;
}
.btn-gold {
  background: linear-gradient(135deg, var(--yellow-warm), var(--gold));
  color: var(--navy-deep);
  box-shadow: 0 6px 24px rgba(255,188,0,.5);
  font-size: 1rem;
  letter-spacing: .02em;
}
.btn-gold:hover {
  background: linear-gradient(135deg, var(--yellow-hot), var(--yellow-warm));
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255,188,0,.55);
}
.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.75);
  padding: 13px 36px;
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
}
.btn-line {
  background: #00B900;
  color: var(--white);
}
.btn-line:hover { background: #009A00; transform: translateY(-2px); }
.btn-phone {
  background: var(--navy);
  color: var(--white);
  letter-spacing: .04em;
}
.btn-phone:hover { background: var(--navy-light); transform: translateY(-2px); }
.btn-map {
  background: transparent;
  color: var(--gold-light);
  border: 2px solid var(--gold);
  padding: 11px 28px;
}
.btn-map:hover { background: var(--gold); color: var(--navy-deep); }
.btn-instagram {
  background: linear-gradient(45deg,#f09433,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888);
  color: var(--white);
}
.btn-instagram:hover { opacity: .9; transform: translateY(-2px); }
.btn-navy {
  background: var(--navy-deep);
  color: var(--white);
  box-shadow: 0 4px 18px rgba(11,37,69,.22);
}
.btn-navy:hover {
  background: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 7px 24px rgba(11,37,69,.3);
}
.btn-outline-navy {
  background: transparent;
  color: var(--navy-deep);
  border: 2px solid rgba(11,37,69,.32);
  padding: 13px 36px;
}
.btn-outline-navy:hover {
  background: var(--navy-deep);
  color: var(--white);
  border-color: var(--navy-deep);
}
.btn-red {
  background: linear-gradient(135deg, var(--red-bright), var(--red));
  color: var(--white);
  box-shadow: 0 5px 22px rgba(204,34,0,.42);
  font-size: 1rem;
}
.btn-red:hover {
  background: linear-gradient(135deg, var(--red), var(--red-dark));
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(204,34,0,.52);
}
.btn-outline-red {
  background: transparent;
  color: var(--red);
  border: 2px solid rgba(204,34,0,.45);
  padding: 13px 36px;
  font-size: 1rem;
}
.btn-outline-red:hover {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
  transform: translateY(-2px);
}

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(30,5,5,.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--trans);
  padding: 14px 0;
}
#header.scrolled {
  background: rgba(140,8,8,.97);
  padding: 10px 0;
  box-shadow: 0 4px 24px rgba(0,0,0,.4);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}
.nav-logo { width: 60px; height: 60px; object-fit: contain; border-radius: 50%; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: .85rem;
  font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: var(--trans);
  letter-spacing: .02em;
}
.nav-link:hover { color: var(--yellow-hot); }
.nav-cta {
  background: var(--yellow-hot);
  color: var(--charcoal);
  font-weight: 700;
  font-size: .85rem;
  padding: 9px 22px;
  border-radius: 50px;
  transition: var(--trans);
  box-shadow: 0 3px 12px rgba(255,208,0,.4);
}
.nav-cta:hover { background: var(--yellow-warm); transform: translateY(-1px); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1100;
}
.hb-line {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}
.hamburger.active .hb-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .hb-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active .hb-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-bg-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1050;
}
.nav-bg-overlay.show { display: block; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: calc(var(--header-h) + 28px);
  padding-bottom: 100px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(175,48,0,.70) 0%,
    rgba(100,22,0,.52) 45%,
    rgba(165,42,0,.72) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.hero-logo-wrap {
  display: inline-block;
  margin-bottom: 14px;
}
.hero-logo {
  width: 400px;
  max-height: 180px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(255,255,255,.32)) drop-shadow(0 3px 10px rgba(0,0,0,.45));
}
.hero-main-copy {
  font-family: var(--font-serif);
  font-size: clamp(2.3rem, 6.2vw, 4.8rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: .08em;
  line-height: 1.1;
  text-align: center;
  text-shadow: 0 3px 24px rgba(120,30,0,.50), 0 1px 4px rgba(0,0,0,.30);
  margin-top: 0;
  margin-bottom: 16px;
}
.hero-line1 {
  display: block;
  white-space: nowrap;
}
.hero-copy-accent {
  display: block;
  color: var(--yellow-hot);
  text-shadow: 0 2px 20px rgba(255,208,0,.65), 0 0 40px rgba(255,165,0,.45);
}
.hero-founder-copy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 5.2vw, 4rem);
  font-weight: 700;
  color: rgba(255,218,100,.97);
  letter-spacing: .14em;
  line-height: 1;
  text-shadow: 0 0 28px rgba(255,180,30,.60), 0 2px 14px rgba(80,20,0,.38);
  margin-bottom: -18px;
}
.hero-founder-copy::before,
.hero-founder-copy::after {
  content: '';
  width: 36px;
  height: 1px;
  background: rgba(255,215,140,.60);
  flex-shrink: 0;
}
.hero-sub-copy {
  font-family: var(--font-serif);
  font-size: clamp(.88rem, 1.9vw, 1.1rem);
  color: rgba(255,242,222,.93);
  line-height: 2.1;
  letter-spacing: .04em;
  margin-bottom: 20px;
  text-shadow: 0 1px 8px rgba(80,20,0,.40);
}
.hero-sub-nowrap { white-space: nowrap; }
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0;
}
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,.55);
  animation: scrollBounce 2.2s ease-in-out infinite;
}
.scroll-label { font-size: .65rem; letter-spacing: .25em; }
.scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, rgba(255,255,255,.55), transparent);
}
@keyframes scrollBounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  55%      { transform: translateX(-50%) translateY(10px); }
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
.philosophy-section { background: var(--cream); border-top: 5px solid var(--red); }
.philosophy-lead {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.philosophy-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 3.8vw, 2.1rem);
  font-weight: 700;
  color: var(--red);
  margin-bottom: 0;
  letter-spacing: .05em;
  line-height: 1.65;
  position: relative;
  padding-bottom: 26px;
}
.philosophy-quote::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, var(--red), var(--orange));
  border-radius: 2px;
}
.philosophy-quote-sub {
  display: block;
  font-size: clamp(1.1rem, 2.6vw, 1.52rem);
  margin-top: 20px;
  letter-spacing: .04em;
  line-height: 1.55;
}
.philosophy-text {
  font-size: .97rem;
  color: var(--text-body);
  line-height: 2.25;
  margin-top: 30px;
}
.ph-key {
  font-style: normal;
  font-weight: 700;
  color: var(--red);
  border-bottom: 2px solid var(--orange);
  padding-bottom: 1px;
}
.philosophy-cards {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.philosophy-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--gold);
  transition: var(--trans);
}
.philosophy-card:nth-child(2) { border-top-color: var(--orange); }
.philosophy-card:nth-child(3) { border-top-color: var(--red); }
.philosophy-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.p-card-icon {
  width: 56px; height: 56px;
  background: var(--gold-pale);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.4rem;
  color: var(--gold);
}
.philosophy-card:nth-child(2) .p-card-icon { background: rgba(232,99,16,.1); color: var(--orange); }
.philosophy-card:nth-child(3) .p-card-icon { background: rgba(217,43,58,.08); color: var(--red); }
.p-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 12px;
}
.p-card-text { font-size: .9rem; color: var(--text-body); line-height: 1.85; }
.p-card-accent {
  display: inline-block;
  color: var(--red);
  font-weight: 700;
  font-size: 1rem;
  margin-top: .3em;
  white-space: nowrap;
}

.philosophy-message {
  position: relative;
  text-align: center;
  padding: 56px 52px;
  background: linear-gradient(135deg, var(--red-dark) 0%, var(--red) 60%, var(--red-bright) 100%);
  border-radius: var(--radius-lg);
  max-width: 720px;
  margin: 0 auto;
  overflow: hidden;
  border: 2px solid rgba(255,208,0,.25);
  box-shadow: 0 12px 48px rgba(180,30,0,.35);
}
.philosophy-message::before {
  content: '';
  position: absolute;
  top: -50px; left: -50px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--yellow-hot);
  opacity: .08;
  pointer-events: none;
}
.philosophy-message::after {
  content: '';
  position: absolute;
  bottom: -50px; right: -50px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--yellow-hot);
  opacity: .08;
  pointer-events: none;
}
.pm-quote-open,
.pm-quote-close {
  display: block;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 5.5rem;
  line-height: .55;
  color: var(--yellow-hot);
  opacity: .6;
  font-weight: 400;
  user-select: none;
}
.pm-quote-open { margin-bottom: 12px; }
.pm-quote-close { margin-top: 12px; transform: rotate(180deg); display: inline-block; }
.pm-text {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  font-weight: 700;
  color: var(--yellow-hot);
  letter-spacing: .07em;
  line-height: 1.75;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 16px rgba(0,0,0,.3);
}

/* ============================================================
   VALUES  — Manifesto Board
   ============================================================ */
.values-section {
  background: linear-gradient(145deg, #5C1A00 0%, #8C3200 35%, #A03C00 65%, #5C1A00 100%);
  position: relative;
  overflow: hidden;
}
.values-section::after {
  content: 'VALUE';
  position: absolute;
  bottom: -50px; left: -15px;
  font-size: 21rem;
  font-weight: 900;
  color: rgba(255,215,80,.09);
  font-family: var(--font-sans);
  pointer-events: none;
  user-select: none;
  line-height: 1;
  letter-spacing: -.04em;
}

/* Section heading (light-on-dark overrides) */
.values-head { margin-bottom: 52px; }
.values-head .section-label {
  background: transparent;
  color: var(--yellow-hot);
  box-shadow: none;
  letter-spacing: .38em;
}
.values-main-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: rgba(255,248,228,.97);
  margin-bottom: 12px;
}
.values-subtitle {
  font-family: var(--font-sans);
  font-size: .88rem;
  color: rgba(255,225,175,.58);
  letter-spacing: .12em;
  margin-bottom: 8px;
}
.values-head .title-deco-gold { margin-top: 10px; }

/* Board container */
.values-board {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,195,60,.14);
  border-radius: 16px;
  padding: 8px 52px;
  position: relative;
}

/* Each value row */
.value-item {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 28px 12px;
  border-bottom: 1px solid rgba(255,185,50,.10);
  border-radius: 8px;
  transition: background .28s ease, padding-left .28s ease;
  cursor: default;
}
.value-item:last-child { border-bottom: none; }
.value-item:hover {
  background: rgba(255,140,20,.07);
  padding-left: 20px;
}

/* Large decorative number */
.value-num {
  font-family: var(--font-sans);
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  font-weight: 900;
  color: rgba(255,195,60,.28);
  flex-shrink: 0;
  width: 120px;
  text-align: right;
  line-height: 1;
  letter-spacing: -.03em;
  transition: color .28s ease;
}
.value-item:hover .value-num { color: rgba(255,195,60,.52); }

/* Vertical accent line */
.value-divider {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom,
    transparent 0%,
    rgba(255,185,50,.50) 35%,
    rgba(255,185,50,.50) 65%,
    transparent 100%);
  margin: 0 36px;
  flex-shrink: 0;
}

/* Value text content */
.value-content { flex: 1; }
.value-title {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.42rem);
  font-weight: 700;
  color: rgba(255,248,228,.97);
  margin-bottom: 6px;
  line-height: 1.4;
}
.value-desc {
  font-family: var(--font-sans);
  font-size: clamp(.84rem, 1.4vw, .95rem);
  color: rgba(255,235,200,.78);
  line-height: 1.85;
  font-weight: 400;
}

/* ============================================================
   FORMULA
   ============================================================ */
.formula-section {
  background: linear-gradient(145deg, #7A0000 0%, #B81800 40%, #CC2200 70%, #8B0800 100%);
  position: relative;
  overflow: hidden;
}
.formula-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,208,0,.09) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.formula-section .container { position: relative; z-index: 1; }
.formula-eq {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 6px 10px;
  margin-bottom: 64px;
  padding: 0 12px 28px;
}
.f-term {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transform: translateY(-8px);
}
.f-kanji {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7.5vw, 5rem);
  font-weight: 700;
  color: var(--yellow-hot);
  line-height: 1;
  text-shadow: 0 0 30px rgba(255,208,0,.4);
}
.f-en {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 5px;
  font-size: .62rem;
  color: rgba(255,255,255,.45);
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.f-op {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: rgba(255,255,255,.85);
  line-height: 1;
  font-weight: 700;
}
.f-result-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.f-eq {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: rgba(255,255,255,.8);
  font-weight: 700;
  line-height: 1;
}
.f-result {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6.9vw, 4.7rem);
  font-weight: 700;
  color: #FFE040;
  line-height: 1;
  background: none;
  padding: 8px 20px;
  border-radius: 0;
  border: none;
  text-shadow: 0 1px 4px rgba(255,220,0,.55), 0 0 8px rgba(255,210,0,.28);
}
.formula-cards {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 16px;
}
.formula-card {
  background: rgba(0,0,0,.22);
  border: 1px solid rgba(255,255,255,.12);
  border-top: 5px solid var(--yellow-hot);
  border-radius: var(--radius-lg);
  padding: 28px 18px;
  transition: var(--trans);
  backdrop-filter: blur(4px);
}
.formula-card:hover {
  background: rgba(0,0,0,.35);
  border-top-color: var(--yellow-warm);
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(0,0,0,.5);
}
.formula-card:nth-child(2) { border-top-color: var(--white); }
.formula-card:nth-child(3) { border-top-color: var(--yellow-warm); }
.formula-card:nth-child(4) { border-top-color: var(--orange-light); }
.fc-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.fc-kanji {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--yellow-hot);
  text-shadow: 0 0 16px rgba(255,208,0,.3);
  flex-shrink: 0;
  line-height: 1;
}
.fc-head h3 {
  font-size: .88rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.45;
}
.formula-card:nth-child(3) .fc-head h3 {
  white-space: normal;
}
.formula-card:nth-child(3) p {
  font-size: .825rem;
  line-height: 1.75;
}
.formula-card p {
  font-size: .875rem;
  color: rgba(255,255,255,.75);
  line-height: 1.85;
  margin-bottom: 0;
}
.formula-card p + p {
  margin-top: .7em;
}
.formula-card:nth-child(4) p {
  font-size: .825rem;
  line-height: 1.75;
}
.formula-card .fc-emphasis {
  color: var(--yellow-hot);
  font-weight: 700;
  font-size: .875rem;
  line-height: 1.7;
}
.formula-card:nth-child(3) .fc-emphasis {
  display: block;
  white-space: nowrap;
  font-size: clamp(.68rem, 1.05vw, 1rem);
  letter-spacing: -.03em;
  max-width: 100%;
  overflow: hidden;
}

/* ============================================================
   REASONS
   ============================================================ */
.reasons-section { background: var(--cream); border-top: 5px solid var(--orange); }
.reasons-list {
  max-width: 800px;
  margin: 0 auto;
}
.reason-item {
  display: flex;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--warm-gray);
  align-items: flex-start;
}
.reason-item:last-child { border-bottom: none; }
.reason-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  min-width: 56px;
  background: var(--red);
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 50%;
  font-family: var(--font-sans);
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(217,43,58,.35);
  letter-spacing: -.02em;
}
.reason-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--orange);
}
.reason-body p { font-size: .95rem; line-height: 1.95; }

/* ============================================================
   COURSES
   ============================================================ */
.courses-section { background: linear-gradient(145deg, #8B1000 0%, #B82200 50%, #8B1000 100%); }
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 20px;
  margin-bottom: 52px;
}
.course-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-top: 4px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 32px 22px;
  text-align: center;
  transition: var(--trans);
}
.course-card:nth-child(2) { border-top-color: var(--white); }
.course-card:nth-child(3) { border-top-color: var(--yellow-hot); }
.course-card:nth-child(4) { border-top-color: var(--navy-light); }
.course-card:hover {
  background: rgba(255,255,255,.13);
  transform: translateY(-7px);
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.course-icon {
  width: 60px; height: 60px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--navy-deep);
  box-shadow: 0 4px 16px rgba(201,168,76,.4);
}
.course-card:nth-child(2) .course-icon { background: var(--white); color: var(--red); box-shadow: 0 4px 16px rgba(255,255,255,.3); }
.course-card:nth-child(3) .course-icon { background: var(--yellow-hot); box-shadow: 0 4px 16px rgba(255,208,0,.4); }
.course-card:nth-child(4) .course-icon { background: var(--navy-light); color: var(--white); box-shadow: 0 4px 16px rgba(43,87,151,.4); }
.course-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.course-sub {
  font-size: .78rem;
  color: var(--gold-light);
  margin-bottom: 16px;
  letter-spacing: .04em;
}
.course-text {
  font-size: .875rem;
  color: rgba(255,255,255,.75);
  line-height: 1.85;
}
.courses-cta {
  text-align: center;
}
.courses-cta p {
  color: rgba(255,255,255,.72);
  font-size: .95rem;
  margin-bottom: 22px;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-section { background: var(--cream); border-top: 5px solid var(--yellow-warm); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  grid-template-rows: 220px 220px;
  gap: 12px;
  margin-bottom: 44px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--warm-gray);
}
.gallery-item.gallery-main {
  grid-column: span 2;
  grid-row: span 2;
}
.gallery-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--navy-deep), var(--navy));
  color: rgba(255,255,255,.22);
  z-index: 0;
  border-radius: inherit;
}
.gallery-placeholder i    { font-size: 2.4rem; }
.gallery-placeholder span { font-size: .78rem; letter-spacing: .14em; }
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  transition: transform .5s ease;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(11,37,69,.72), transparent);
  color: var(--white);
  font-size: .8rem;
  font-weight: 500;
  padding: 20px 14px 12px;
  opacity: 0;
  transition: var(--trans);
}
.gallery-item:hover .gallery-label { opacity: 1; }
/* Instagram Banner */
.instagram-banner {
  background: linear-gradient(135deg, #833ab4 0%, #c13584 35%, #fd1d1d 70%, #fcb045 100%);
  border-radius: var(--radius-lg);
  padding: 56px 52px;
  margin-top: 48px;
  position: relative;
  overflow: hidden;
}
.instagram-banner::before {
  content: '';
  position: absolute;
  top: -70px; right: -70px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: rgba(255,255,255,.09);
  pointer-events: none;
}
.instagram-banner::after {
  content: '';
  position: absolute;
  bottom: -80px; left: 5%;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  pointer-events: none;
}
.ig-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 52px;
}
.ig-icon-col {
  font-size: 7rem;
  color: rgba(255,255,255,.95);
  flex-shrink: 0;
  line-height: 1;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,.2));
}
.ig-eyebrow {
  font-size: .7rem;
  letter-spacing: .28em;
  color: rgba(255,255,255,.75);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.ig-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.5;
  margin-bottom: 16px;
}
.ig-desc {
  font-size: .93rem;
  color: rgba(255,255,255,.87);
  line-height: 1.9;
  margin-bottom: 10px;
}
.ig-handle {
  font-size: 1rem;
  font-weight: 700;
  color: rgba(255,255,255,.95);
  letter-spacing: .04em;
  margin-bottom: 28px;
}
.btn-ig-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: #d6249f;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  padding: 15px 36px;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--trans);
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.btn-ig-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,.28);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-section { background: var(--cream); border-top: 5px solid var(--red); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--warm-gray); }
.faq-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: var(--trans);
}
.faq-btn:hover { opacity: .78; }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: var(--red);
  color: var(--white);
  font-weight: 700;
  font-size: .85rem;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 3px 10px rgba(217,43,58,.3);
}
.faq-text {
  flex: 1;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  color: var(--navy-deep);
  line-height: 1.55;
}
.faq-chevron {
  color: var(--gold);
  font-size: .85rem;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-btn[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 0 24px 48px;
}
.faq-answer.open { display: block; }
.faq-answer p { font-size: .95rem; color: var(--text-body); line-height: 2; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
  background: linear-gradient(145deg, #1A0500 0%, #8B1200 60%, #5A0800 100%);
}
.contact-lead {
  text-align: center;
  color: rgba(255,255,255,.82);
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 52px;
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 24px;
}
.contact-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 38px 28px;
  text-align: center;
  transition: var(--trans);
}
.contact-card:hover { background: rgba(255,255,255,.11); transform: translateY(-4px); }
.contact-card-line { border-color: rgba(0,185,0,.35); }
.cc-icon {
  font-size: 2rem;
  color: var(--gold-light);
  margin-bottom: 16px;
}
.cc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.cc-text {
  font-size: .9rem;
  color: rgba(255,255,255,.68);
  line-height: 1.75;
  margin-bottom: 22px;
}
.cc-address {
  font-size: .95rem;
  color: rgba(255,255,255,.82);
  line-height: 1.8;
  margin-bottom: 22px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0A0000;
  border-top: 1px solid rgba(255,208,0,.2);
  padding: 52px 0 28px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: center;
  margin-bottom: 36px;
}
.footer-logo-wrap {
  display: inline-block;
}
.footer-logo { height: 44px; width: auto; }
.footer-name {
  font-weight: 700;
  color: rgba(255,255,255,.8);
  font-size: .95rem;
  margin-bottom: 4px;
}
.footer-address, .footer-tel {
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
}
.footer-tel a { color: rgba(255,255,255,.5); }
.footer-tel a:hover { color: var(--gold-light); }
.footer-sns { display: flex; gap: 14px; }
.footer-sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.65);
  font-size: 1.1rem;
  transition: var(--trans);
}
.footer-sns-link:hover { border-color: var(--gold); color: var(--gold); }
.footer-copy {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 28px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center;
  font-size: .78rem;
  color: rgba(255,255,255,.35);
}

/* ============================================================
   SECTION CTA
   ============================================================ */
.section-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 56px;
  padding-top: 52px;
  border-top: 3px solid rgba(217,43,58,.22);
}
.section-cta-dark {
  border-top: 3px solid rgba(255,208,0,.22);
}

/* ============================================================
   FIXED MOBILE CTA
   ============================================================ */
.fixed-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: var(--navy-deep);
  border-top: 2px solid var(--gold);
  padding: 10px 20px;
  box-shadow: 0 -4px 20px rgba(0,0,0,.28);
  transition: transform .35s ease;
}
.fixed-cta.hide {
  transform: translateY(100%);
}
.fixed-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gold);
  color: var(--navy-deep);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: .88rem;
  padding: 13px 20px;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--trans);
  width: 100%;
  letter-spacing: .02em;
}
.fixed-cta-btn:hover { background: var(--gold-light); }

/* ============================================================
   RESPONSIVE — TABLET (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .nav-links { gap: 18px; }
  .nav-link  { font-size: .8rem; }

  .values-board  { padding: 4px 32px; }
  .value-num     { font-size: 2.6rem; width: 90px; }
  .value-divider { margin: 0 24px; }
  .formula-cards { grid-template-columns: repeat(2,1fr); }
  .formula-card:nth-child(3) .fc-emphasis { font-size: .875rem; letter-spacing: 0; }
  .courses-grid  { grid-template-columns: repeat(2,1fr); }

  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-inner .footer-sns { grid-column: 1 / -1; justify-self: start; }
}

/* ============================================================
   RESPONSIVE — MOBILE (≤768px)
   ============================================================ */
@media (max-width: 768px) {
  :root             { --header-h: 76px; }

  .section { padding: 64px 0; }
  .section-head { margin-bottom: 44px; }

  /* Nav */
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 78%;
    max-width: 310px;
    height: 100vh;
    background: var(--navy-deep);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    padding: 80px 36px;
    transition: right .35s ease;
    z-index: 1060;
    box-shadow: -4px 0 24px rgba(0,0,0,.35);
  }
  .nav-links.open { right: 0; }
  .nav-link { font-size: 1.05rem; color: rgba(255,255,255,.9); }
  .nav-cta  { font-size: 1rem; }

  /* Hero */
  .hero-logo        { width: 250px; max-height: 130px; height: auto; }
  .nav-logo         { width: 48px; height: 48px; }
  .hero-main-copy   { font-size: clamp(1.7rem, 7.5vw, 3rem); }
  .hero-founder-copy { gap: 12px; }
  .hero-founder-copy::before,
  .hero-founder-copy::after { width: 20px; }
  .hero-sub-nowrap  { white-space: normal; }
  .hero-buttons     { flex-direction: column; width: 100%; max-width: 320px; }
  .btn              { width: 100%; }

  /* Philosophy */
  .philosophy-cards { grid-template-columns: 1fr; gap: 16px; }
  .p-card-accent { white-space: normal; }

  /* Formula */
  .formula-eq   { gap: 4px 2px; }
  .values-board  { padding: 4px 18px; }
  .value-item    { padding: 20px 8px; }
  .value-item:hover { padding-left: 12px; }
  .value-num     { font-size: 2rem; width: 60px; }
  .value-divider { margin: 0 16px; height: 38px; }
  .value-title   { font-size: 1.05rem; }
  .value-desc    { font-size: .84rem; }
  .formula-cards { grid-template-columns: 1fr; gap: 14px; }

  /* Reasons */
  .reason-item { gap: 16px; }
  .reason-num  { min-width: 40px; font-size: 1.5rem; }

  /* Courses */
  .courses-grid { grid-template-columns: 1fr; gap: 14px; }

  /* Gallery */
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 180px 140px 140px;
  }
  .gallery-item.gallery-main {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  /* Instagram banner */
  .ig-inner    { flex-direction: column; gap: 28px; text-align: center; }
  .ig-icon-col { font-size: 5rem; }
  .instagram-banner { padding: 40px 28px; margin-top: 36px; }
  .philosophy-message { padding: 40px 28px; }
  .pm-text { font-size: clamp(1.15rem, 5vw, 1.4rem); }

  /* Section CTA */
  .section-cta {
    flex-direction: column;
    align-items: center;
    margin-top: 44px;
    padding-top: 36px;
    gap: 12px;
  }
  .section-cta .btn,
  .section-cta .btn-outline-navy,
  .section-cta .btn-outline-red { width: 100%; max-width: 320px; }

  /* Fixed Mobile CTA */
  .fixed-cta { display: block; }
  body { padding-bottom: 66px; }

  /* Contact */
  .contact-cards { grid-template-columns: 1fr; gap: 16px; }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 20px;
  }
  .footer-inner .footer-sns { justify-self: center; }
}

/* ============================================================
   RESPONSIVE — SMALL MOBILE (≤480px)
   ============================================================ */
@media (max-width: 480px) {
  :root { --header-h: 72px; }

  /* Hero */
  .hero-logo        { width: 190px; max-height: 110px; }
  .hero-main-copy   { font-size: clamp(1.5rem, 7.5vw, 2.4rem); }
  .hero-founder-copy {
    font-size: clamp(1.3rem, 5.5vw, 2rem);
    gap: 10px;
    margin-bottom: -14px;
  }
  .hero-founder-copy::before,
  .hero-founder-copy::after { width: 14px; }

  /* Formula — 2行レイアウト（質×量×楽×教 / ＝成績UP！） */
  .formula-eq {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 8px;
  }
  .f-result-group {
    flex-basis: 100%;
    justify-content: center;
  }
  .f-kanji  { font-size: 1.8rem; }
  .f-op     { font-size: 1.3rem; }
  .f-eq     { font-size: 1.5rem; }
  .f-result { font-size: 2.4rem; padding: 4px 16px; }

  /* Reasons */
  .reason-num { width: 48px; height: 48px; min-width: 48px; font-size: 1.1rem; }

  /* Gallery */
  .gallery-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .gallery-item.gallery-main { grid-column: 1; grid-row: 1; }
  .gallery-item { height: 200px; }
}

/* ============================================================
   FLOATING NAV（SNS・地図 共通ボタン）
   ============================================================ */

/* PC: 画面右側に縦型固定 */
.float-nav {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 800;
}

.float-btn {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  overflow: hidden;
  width: 52px;
  height: 52px;
  border-radius: 10px 0 0 10px;
  text-decoration: none;
  transition: width .3s cubic-bezier(.4,0,.2,1), box-shadow .3s;
  box-shadow: -2px 2px 12px rgba(0,0,0,.28);
}

.float-btn:hover {
  width: 162px;
  box-shadow: -4px 4px 20px rgba(0,0,0,.4);
}

.float-btn-icon {
  flex-shrink: 0;
  display: inline-block;
  width: 52px;
  text-align: center;
  font-size: 1.3rem;
  color: #fff;
  line-height: 1;
}

.float-btn-label {
  color: #fff;
  font-family: var(--font-sans);
  font-size: .78rem;
  font-weight: 700;
  white-space: nowrap;
  max-width: 0;
  overflow: hidden;
  padding-left: 0;
  transition: max-width .25s ease .05s, padding-left .25s ease .05s;
}

.float-btn:hover .float-btn-label {
  max-width: 110px;
  padding-left: 10px;
}

.float-btn-tel  { background: #1A3A6B; }
.float-btn-ig   { background: linear-gradient(135deg,#f09433 0%,#e6683c 25%,#dc2743 50%,#cc2366 75%,#bc1888 100%); }
.float-btn-line { background: #06C755; }
.float-btn-map  { background: var(--red); }

/* スマホ: 画面下部に3分割の固定ナビ */
@media (max-width: 768px) {
  .float-nav {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    transform: none;
    flex-direction: row;
    gap: 0;
    z-index: 800;
    border-top: 1px solid rgba(255,255,255,.15);
  }

  .float-btn {
    flex: 1;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: auto;
    height: calc(56px + env(safe-area-inset-bottom));
    border-radius: 0;
    padding-bottom: env(safe-area-inset-bottom);
    box-shadow: none;
    overflow: visible;
  }

  .float-btn + .float-btn {
    border-left: 1px solid rgba(255,255,255,.15);
  }

  .float-btn:hover {
    width: auto;
    box-shadow: none;
    filter: brightness(1.1);
  }

  .float-btn-icon {
    width: auto;
    font-size: 1.25rem;
    margin-bottom: 3px;
  }

  .float-btn-label {
    max-width: 100%;
    font-size: .62rem;
    letter-spacing: .02em;
    padding-left: 0;
    overflow: visible;
    opacity: 1;
  }

  .float-btn:hover .float-btn-label {
    max-width: 100%;
    padding-left: 0;
  }

  /* 既存の固定LINEボタンを float-nav の上に出す */
  .fixed-cta {
    bottom: calc(56px + env(safe-area-inset-bottom));
  }

  /* body の下部余白を float-nav 分に更新 */
  body {
    padding-bottom: calc(56px + env(safe-area-inset-bottom));
  }
}