:root {
  --navy: #1a2540;
  --navy-deep: #0f1829;
  --silver: #c8cdd8;
  --silver-light: #e8eaf0;
  --off-white: #f3f4f6;
  --white: #ffffff;
  --accent: #3d5a8a;
  --accent-light: #5b7db3;
  --grid: rgba(26,37,64,0.06);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Outfit', 'Noto Sans JP', sans-serif;
  background: var(--off-white);
  color: var(--navy);
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 60px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(243,244,246,0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(26,37,64,0.08);
  transition: background 0.3s;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; }
.nav-logo img { height: 48px; width: auto; object-fit: contain; }
.nav-links { display: flex; gap: 40px; list-style: none; }
.nav-links a {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--navy);
  text-decoration: none;
  opacity: 0.65;
  transition: opacity 0.25s;
  text-transform: uppercase;
}
.nav-links a:hover { opacity: 1; }
.nav-cta {
  font-family: 'Outfit', sans-serif;
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--navy);
  padding: 9px 22px;
  text-decoration: none;
  transition: background 0.25s;
}
.nav-cta:hover { background: var(--accent); }

/* ── HAMBURGER ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: 200;
}
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--navy);
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── MOBILE MENU ── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(243,244,246,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(26,37,64,0.08);
  padding: 32px 28px 40px;
  z-index: 99;
  flex-direction: column;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu a {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--navy);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid rgba(26,37,64,0.07);
  opacity: 0.75;
  transition: opacity 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { opacity: 1; }
.mobile-menu .mobile-cta {
  margin-top: 24px;
  display: block;
  text-align: center;
  font-weight: 400;
  color: var(--white);
  background: var(--navy);
  padding: 14px 28px;
  border-bottom: none !important;
  opacity: 1 !important;
}

/* ── HERO ── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 60px 80px;
  overflow: hidden;
}
.hero-bg-x {
  position: absolute;
  right: -40px; top: 50%;
  transform: translateY(-50%);
  width: 55vw; max-width: 780px;
  opacity: 0.045;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 44px;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.2s forwards;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px; height: 1px;
  background: var(--accent-light);
}
.hero-eyebrow span {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-light);
}
.hero-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: clamp(52px, 7vw, 92px);
  line-height: 1.15;
  color: var(--navy-deep);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 1s ease 0.4s forwards;
}
.hero-title em {
  font-style: normal;
  font-weight: 400;
  position: relative;
}
.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 0;
  width: 100%; height: 2px;
  background: var(--accent-light);
  opacity: 0.5;
}
.hero-sub {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 15px;
  line-height: 1.9;
  color: var(--navy);
  max-width: 480px;
  opacity: 0;
  animation: fadeUp 1s ease 0.6s forwards;
}
.hero-sub-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: 13px;
  line-height: 2.2;
  color: rgba(26,37,64,0.6);
  margin-top: 8px;
  opacity: 0;
  animation: fadeUp 1s ease 0.7s forwards;
}
.hero-actions {
  margin-top: 52px;
  display: flex;
  align-items: center;
  gap: 32px;
  opacity: 0;
  animation: fadeUp 1s ease 0.8s forwards;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Outfit', sans-serif;
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--navy);
  padding: 16px 36px;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}
.btn-primary::before {
  content: '';
  position: absolute;
  left: -100%; top: 0;
  width: 100%; height: 100%;
  background: var(--accent);
  transition: left 0.3s ease;
  z-index: 0;
}
.btn-primary:hover::before { left: 0; }
.btn-primary span { position: relative; z-index: 1; }
.btn-secondary {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  text-decoration: none;
  opacity: 0.6;
  border-bottom: 1px solid rgba(26,37,64,0.25);
  padding-bottom: 2px;
  transition: opacity 0.25s;
}
.btn-secondary:hover { opacity: 1; }
.hero-scroll-hint {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 1s ease 1.5s forwards;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent-light));
  animation: scrollPulse 2s ease-in-out infinite;
}
.scroll-text {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-light);
  transform: rotate(90deg);
  margin-top: 4px;
}

/* ── DIVIDER ── */
.section-divider {
  width: 100%; height: 1px;
  background: linear-gradient(to right, transparent, var(--navy), transparent);
  opacity: 0.12;
}

/* ── TICKER ── */
.ticker {
  background: var(--navy);
  padding: 14px 0;
  overflow: hidden;
  position: relative;
  z-index: 2;
}
.ticker-track {
  display: flex;
  animation: ticker 24s linear infinite;
  white-space: nowrap;
}
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 0 32px;
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
  opacity: 0.7;
}
.ticker-dot {
  width: 3px; height: 3px;
  background: var(--accent-light);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── SHARED SECTION PARTS ── */
.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}
.section-label::before {
  content: '';
  display: block;
  width: 24px; height: 1px;
  background: var(--accent-light);
}
.section-label span {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-light);
}
.section-heading {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.5;
  color: var(--navy-deep);
  margin-bottom: 32px;
}
.section-heading strong { font-weight: 400; }
.section-body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: 14px;
  line-height: 2.4;
  color: rgba(26,37,64,0.72);
  margin-bottom: 16px;
}

/* ── ABOUT ── */
#about { padding: 140px 60px; position: relative; overflow: hidden; }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.about-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  max-width: 480px;
}
.about-visual-ring {
  position: absolute;
  border: 1px solid rgba(26,37,64,0.1);
  border-radius: 50%;
}
.ring-1 { width: 80%; height: 80%; }
.ring-2 { width: 60%; height: 60%; animation: rotateSlow 20s linear infinite; }
.ring-3 { width: 40%; height: 40%; animation: rotateSlow 14s linear infinite reverse; }
.ring-2::before, .ring-3::before {
  content: '';
  position: absolute;
  top: -3px; left: 50%;
  width: 6px; height: 6px;
  background: var(--accent-light);
  border-radius: 50%;
  transform: translateX(-50%);
}
.about-x-center { position: relative; z-index: 2; }
.about-x-center svg { width: 120px; height: 120px; opacity: 0.9; }

/* ── SERVICES ── */
#services { padding: 140px 60px; background: var(--navy-deep); position: relative; overflow: hidden; }
#services::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.services-header {
  max-width: 1200px;
  margin: 0 auto 80px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.services-header .section-heading { color: var(--off-white); max-width: 480px; }
.services-header .section-label::before { background: rgba(200,205,216,0.4); }
.services-header .section-label span { color: rgba(200,205,216,0.6); }
.services-header-note {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: 13px;
  line-height: 2;
  color: rgba(200,205,216,0.5);
  max-width: 320px;
  text-align: right;
}
.services-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}
.service-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 48px 36px;
  transition: background 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
  cursor: default;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(to right, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.service-card:hover { background: rgba(255,255,255,0.055); border-color: rgba(255,255,255,0.1); }
.service-card:hover::before { transform: scaleX(1); }
.service-number {
  font-family: 'Outfit', sans-serif;
  font-weight: 200; font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(200,205,216,0.3);
  margin-bottom: 36px;
}
.service-icon { width: 36px; height: 36px; margin-bottom: 24px; opacity: 0.7; }
.service-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 400; font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver-light);
  margin-bottom: 8px;
}
.service-title-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200; font-size: 11px;
  color: rgba(200,205,216,0.4);
  margin-bottom: 24px;
  letter-spacing: 0.08em;
}
.service-desc {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200; font-size: 12.5px;
  line-height: 2;
  color: rgba(200,205,216,0.55);
}

/* ── APPROACH ── */
#approach { padding: 140px 60px; position: relative; }
.approach-inner { max-width: 1200px; margin: 0 auto; }
.approach-header { margin-bottom: 80px; text-align: center; }
.approach-header .section-label { justify-content: center; }
.approach-header .section-label::before { display: none; }
.approach-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  position: relative;
}
.approach-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(16.66% + 20px);
  right: calc(16.66% + 20px);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--navy), transparent);
  opacity: 0.15;
}
.approach-step { text-align: center; padding: 0 20px; }
.step-circle {
  width: 64px; height: 64px;
  border: 1px solid rgba(26,37,64,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 32px;
  position: relative;
  transition: all 0.35s ease;
}
.step-circle:hover { border-color: var(--accent-light); background: rgba(91,125,179,0.06); }
.step-circle svg { width: 22px; height: 22px; }
.step-num {
  position: absolute;
  top: -8px; right: -8px;
  width: 20px; height: 20px;
  background: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-weight: 400; font-size: 9px;
  color: var(--silver-light);
}
.step-title {
  font-family: 'Outfit', sans-serif;
  font-weight: 500; font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 8px;
}
.step-title-jp {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300; font-size: 12px;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}
.step-desc {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200; font-size: 13px;
  line-height: 2.1;
  color: rgba(26,37,64,0.6);
}

/* ── CONCEPT ── */
#concept {
  padding: 160px 60px;
  background: var(--navy);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.concept-x-bg {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 70vw; max-width: 900px;
  opacity: 0.035;
  pointer-events: none;
}
.concept-inner { position: relative; z-index: 2; max-width: 800px; margin: 0 auto; }
.concept-label {
  font-family: 'Outfit', sans-serif;
  font-weight: 300; font-size: 10px;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: rgba(200,205,216,0.5);
  margin-bottom: 48px;
}
.concept-quote {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: clamp(36px, 6vw, 80px);
  line-height: 1.4;
  color: var(--off-white);
  letter-spacing: 0.04em;
  margin-bottom: 24px;
}
.concept-quote em { font-style: normal; font-weight: 400; color: rgba(200,205,216,0.85); }
.concept-sub {
  font-family: 'Outfit', sans-serif;
  font-weight: 200; font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(200,205,216,0.4);
  margin-top: 40px;
}

/* ── CONTACT ── */
#contact { padding: 140px 60px; position: relative; }
.contact-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: start;
}
.contact-tagline {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.6;
  color: var(--navy-deep);
  margin-bottom: 32px;
}
.contact-note {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 200; font-size: 13px;
  line-height: 2.2;
  color: rgba(26,37,64,0.6);
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-label {
  font-family: 'Outfit', sans-serif;
  font-weight: 300; font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(26,37,64,0.5);
}
.form-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(26,37,64,0.18);
  padding: 12px 0;
  font-family: 'Outfit', sans-serif;
  font-weight: 300; font-size: 14px;
  color: var(--navy);
  outline: none;
  transition: border-color 0.25s;
  width: 100%;
}
.form-input::placeholder { color: rgba(26,37,64,0.28); }
.form-input:focus { border-color: var(--accent-light); }
textarea.form-input { resize: none; height: 80px; padding-top: 12px; }
.form-submit {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: 'Outfit', sans-serif;
  font-weight: 400; font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--navy);
  border: none;
  padding: 16px 36px;
  cursor: pointer;
  transition: background 0.25s;
  align-self: flex-start;
}
.form-submit:hover { background: var(--accent); }

/* ── FOOTER ── */
footer {
  background: var(--navy-deep);
  padding: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-logo { display: flex; align-items: center; text-decoration: none; }
.footer-logo img {
  height: 44px; width: auto;
  opacity: 0.7;
  filter: brightness(0) invert(1);
}
.footer-copy {
  font-family: 'Outfit', sans-serif;
  font-weight: 200; font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(200,205,216,0.3);
}
.footer-links { display: flex; gap: 32px; list-style: none; }
.footer-links a {
  font-family: 'Outfit', sans-serif;
  font-weight: 300; font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(200,205,216,0.35);
  text-decoration: none;
  transition: color 0.25s;
}
.footer-links a:hover { color: rgba(200,205,216,0.75); }

/* ════════════════════════════════════════
   ANIMATIONS
════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50%       { transform: scaleY(1.3); opacity: 1; }
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ════════════════════════════════════════
   RESPONSIVE — TABLET ≤ 1024px
════════════════════════════════════════ */
@media (max-width: 1024px) {
  nav { padding: 0 32px; }
  #hero { padding: 120px 32px 80px; }
  #about { padding: 100px 32px; }
  .about-grid { gap: 60px; }
  #services { padding: 100px 32px; }
  .services-header { flex-direction: column; align-items: flex-start; gap: 20px; }
  .services-header-note { text-align: left; max-width: 100%; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  #approach { padding: 100px 32px; }
  .approach-steps { gap: 40px; }
  #concept { padding: 120px 32px; }
  #contact { padding: 100px 32px; }
  .contact-inner { gap: 60px; }
  footer { padding: 48px 32px; }
}

/* ════════════════════════════════════════
   RESPONSIVE — MOBILE ≤ 768px
════════════════════════════════════════ */
@media (max-width: 768px) {
  nav { padding: 0 24px; height: 64px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .nav-logo img { height: 28px; }

  #hero { padding: 100px 24px 80px; min-height: 100svh; }
  .hero-eyebrow { margin-bottom: 28px; }
  .hero-title { font-size: clamp(40px, 10vw, 64px); margin-bottom: 24px; }
  .hero-sub { font-size: 14px; }
  .hero-sub-jp { font-size: 12px; }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 20px; margin-top: 36px; }
  .btn-primary { width: 100%; justify-content: center; }
  .hero-bg-x { width: 90vw; right: -20px; opacity: 0.03; }

  #about { padding: 80px 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { max-width: 220px; margin: 0 auto; }

  #services { padding: 80px 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 36px 28px; }
  .services-header { margin-bottom: 48px; }

  #approach { padding: 80px 24px; }
  .approach-steps { grid-template-columns: 1fr; gap: 48px; }
  .approach-steps::before { display: none; }
  .approach-header { margin-bottom: 52px; }

  #concept { padding: 100px 24px; }
  .concept-label { margin-bottom: 32px; }

  #contact { padding: 80px 24px; }
  .contact-inner { grid-template-columns: 1fr; gap: 52px; }
  .form-submit { width: 100%; justify-content: center; }

  footer { flex-direction: column; align-items: flex-start; gap: 28px; padding: 40px 24px; }
  .footer-links { flex-wrap: wrap; gap: 20px; }
  .footer-copy { order: 3; }
}

/* ════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE ≤ 480px
════════════════════════════════════════ */
@media (max-width: 480px) {
  .hero-title { font-size: clamp(36px, 11vw, 52px); }
  .hero-sub-jp br { display: none; }
  .section-heading { font-size: clamp(24px, 6vw, 32px); }
  .ticker-item { font-size: 10px; gap: 20px; padding: 0 20px; }
  .contact-tagline { font-size: clamp(20px, 5.5vw, 28px); }
}