/* ===========================
   CSS Variables & Reset
=========================== */
:root {
  --color-primary: #4A90B8;
  --color-primary-dark: #3A7EA5;
  --color-primary-light: #E3F2F8;
  --color-accent: #2B7EB0;
  --color-dark: #1A2840;
  --color-dark-2: #243554;
  --color-dark-3: #2D4A6B;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-bg: #F4F8FA;
  --color-white: #ffffff;
  --color-border: #e2e8f0;
  --font-sans: 'Noto Sans JP', 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.07), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 16px 40px rgba(0,0,0,.1), 0 4px 12px rgba(0,0,0,.05);
  --transition: 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; scrollbar-gutter: stable; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===========================
   Opening Animation
=========================== */
#opening {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
}

.opening__panel {
  position: absolute;
  left: 0; right: 0;
  height: 50%;
  background: #0a0a0a;
  transition: transform 0.8s cubic-bezier(0.76, 0, 0.24, 1);
}
.opening__panel--top { top: 0; }
.opening__panel--bottom { bottom: 0; }

.opening__logo {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity 0.4s ease;
}
.opening__logo-img {
  height: 52px;
  width: auto;
  animation: openingLogoIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}
.opening__tagline {
  font-size: 12px;
  letter-spacing: .18em;
  margin-right: -.18em; /* letter-spacing の末尾余白を相殺して視覚的に中央揃え */
  color: rgba(255,255,255,.5);
  font-family: 'Noto Sans JP', sans-serif;
  animation: openingLogoIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.5s both;
}
@keyframes openingLogoIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

#opening.is-leaving .opening__logo {
  opacity: 0;
}
#opening.is-leaving .opening__panel--top {
  transform: translateY(-100%);
}
#opening.is-leaving .opening__panel--bottom {
  transform: translateY(100%);
}
#opening.is-done {
  display: none;
}

/* ===========================
   Utility
=========================== */
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 99px;
  margin-bottom: 12px;
}
.section-tag--light {
  color: #B8DFF0;
  background: rgba(255,255,255,.12);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  color: var(--color-dark);
  line-height: 1.25;
  letter-spacing: -.02em;
}
.section-title--light { color: #fff; }

.section-desc {
  margin-top: 16px;
  font-size: 16px;
  color: var(--color-text-muted);
}
.section-desc--light { color: rgba(255,255,255,.7); }

/* ===========================
   Buttons
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 99px;
  font-size: 15px;
  font-weight: 700;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(74,144,184,.35);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 20px rgba(74,144,184,.32);
  transform: translateY(-1px);
}
.btn--outline {
  border: 2px solid rgba(255,255,255,.4);
  color: #fff;
  backdrop-filter: blur(4px);
}
.btn--outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,.1);
  transform: translateY(-1px);
}
.btn--submit {
  width: 100%;
  padding: 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(74,144,184,.3);
  transition: var(--transition);
}
.btn--submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(74,144,184,.28);
}

/* ===========================
   Reveal Animation
=========================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* section-header は子要素を個別にアニメーション */
.section-header.reveal {
  opacity: 1;
  transform: none;
  transition: none;
}

.section-header .section-tag {
  display: inline-block;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s cubic-bezier(0.34, 1.4, 0.64, 1),
              transform 0.5s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.section-header .section-title {
  opacity: 0;
  transform: translateY(36px) scale(0.94);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.12s,
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.12s;
}

.section-title::after {
  content: '';
  display: block;
  height: 3px;
  width: 0;
  background: var(--color-accent, #4A90B8);
  margin: 10px auto 0;
  border-radius: 2px;
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.55s;
}
.section-title--light::after {
  background: rgba(255,255,255,0.5);
}

.section-header .section-desc {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.32s,
              transform 0.6s ease 0.32s;
}

.section-header.visible .section-tag {
  opacity: 1;
  transform: translateX(0);
}
.section-header.visible .section-title {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.section-header.visible .section-title::after {
  width: 48px;
}
.section-header.visible .section-desc {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   Header / Nav
=========================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
  overflow: hidden;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.header.scrolled {
  background: rgba(15,31,61,.97);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 12px rgba(0,0,0,.3);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}
.nav__logo-img {
  height: 34px;
  width: auto;
  display: block;
  filter: none;
  transition: filter 0.3s;
  position: relative;
}
.header::after {
  content: '';
  position: absolute;
  top: 0;
  left: -40%;
  width: 30%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255,255,255,0) 20%,
    rgba(255,255,255,0.18) 50%,
    rgba(255,255,255,0) 80%,
    transparent 100%
  );
  pointer-events: none;
  animation: headerShimmer 5s ease-in-out infinite;
  z-index: 1;
}
@keyframes headerShimmer {
  0%   { left: -40%; }
  60%  { left: 120%; }
  100% { left: 120%; }
}
.nav__logo-company {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  letter-spacing: .03em;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__link {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,.8);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav__link:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav__link--cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 8px 20px;
  margin-left: 8px;
}
.nav__link--cta:hover { background: var(--color-primary-dark); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.nav__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===========================
   Hero
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-dark);
}

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

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(74,144,184,.22) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(74,144,184,.12) 0%, transparent 50%),
    linear-gradient(135deg, #0d1824 0%, #1A2840 50%, #0d1824 100%);
}

.hero__particles {
  position: absolute;
  inset: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 120px 0 80px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(74,144,184,.15);
  border: 1px solid rgba(74,144,184,.3);
  color: #90D4EE;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 99px;
  margin-bottom: 24px;
  letter-spacing: .05em;
}
.hero__badge::before {
  content: '';
  width: 8px; height: 8px;
  background: #90D4EE;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -.03em;
  margin-bottom: 24px;
}
.hero__title-accent {
  background: linear-gradient(135deg, #90D4EE, #5BBBD6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__title-sub {
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 17px;
  color: rgba(255,255,255,.72);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 540px;
}
.hero__desc strong { color: #90D4EE; font-weight: 700; }

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-md);
  padding: 24px 32px;
  width: fit-content;
  backdrop-filter: blur(8px);
}
.hero__stat { text-align: center; padding: 0 32px; }
.hero__stat-num {
  display: block;
  font-size: 36px;
  font-weight: 900;
  color: #fff;
  line-height: 1;
  letter-spacing: -.03em;
}
.hero__stat-unit { font-size: 18px; font-weight: 700; color: #90D4EE; }
.hero__stat-label {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,.5);
  margin-top: 6px;
  letter-spacing: .05em;
}
.hero__stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,.15);
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.4);
  font-size: 11px;
  letter-spacing: .1em;
}
.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(1); transform-origin: top; opacity: 0; }
}

/* ===========================
   Particle dots
=========================== */
.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  animation: float linear infinite;
}
@keyframes float {
  0% { transform: translateY(0) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

/* ===========================
   Strengths
=========================== */
.strengths {
  padding: 100px 0;
  background: var(--color-white);
}

.strengths__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.strength-card {
  position: relative;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  border-top: 3px solid transparent;
  background: var(--color-white);
  transition: var(--transition);
  overflow: hidden;
}
.strength-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(74,144,184,.04), transparent);
  opacity: 0;
  transition: var(--transition);
}
.strength-card:hover {
  border-color: rgba(74,144,184,.3);
  border-top-color: #4A90B8;
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.strength-card:hover::before { opacity: 1; }

.strength-card__icon {
  width: 56px; height: 56px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.strength-card__num {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: .1em;
  margin-bottom: 12px;
  opacity: .6;
}

.strength-card__title {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.35;
}

.strength-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.strength-card__text strong { color: var(--color-primary); font-weight: 700; }

.strength-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 99px;
  letter-spacing: .05em;
}

/* ===========================
   Service
=========================== */
.service {
  position: relative;
  padding: 100px 0;
  background: var(--color-bg);
  overflow: hidden;
}

.service__bg-text {
  position: absolute;
  top: 50%;
  right: -40px;
  transform: translateY(-50%);
  font-size: 200px;
  font-weight: 900;
  color: rgba(0,0,0,.03);
  letter-spacing: -.05em;
  pointer-events: none;
  white-space: nowrap;
}

.service__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.service-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: transparent;
}

.service-item__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.service-item__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.service-item__icon svg { width: 28px; height: 28px; }
.service-item__icon--green { background: #E3F2F8; color: #4A90B8; }
.service-item__icon--blue { background: #e0f2fe; color: #0284c7; }
.service-item__icon--orange { background: #fff7ed; color: #ea580c; }
.service-item__icon--purple { background: #f3e8ff; color: #9333ea; }

.service-item__title {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.4;
}

.service-item__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-item__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-item__list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
  font-weight: 500;
}
.service-item__list li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* CO2削減ソリューション — ワイドカード */
.service-item--wide {
  grid-column: 1 / -1;
}
.service-item__icon--teal { background: #E0F7F4; color: #0D9488; }

.service-co2-banner {
  background: linear-gradient(135deg, #1A2840 0%, #0d1824 100%);
  border-radius: var(--radius-md);
  padding: 32px 40px;
  margin-bottom: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: center;
}
.service-co2-banner__left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  min-width: 180px;
}
.service-co2-banner__title {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -.02em;
}
.service-co2-banner__right {
  border-left: 1px solid rgba(255,255,255,.15);
  padding-left: 40px;
}
.service-co2-banner__text {
  font-size: 14px;
  color: rgba(255,255,255,.72);
  line-height: 1.85;
}
.service-co2-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.service-co2-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
}
.service-co2-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-co2-card__img {
  height: 148px;
  position: relative;
  overflow: hidden;
}
.service-co2-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.service-co2-card:hover .service-co2-card__img img {
  transform: scale(1.06);
}
.service-co2-card__img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(13,26,46,.3) 100%);
}
.service-co2-card__body {
  padding: 16px 16px 20px;
}
.service-co2-card__name {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 8px;
  line-height: 1.4;
}
.service-co2-card__text {
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.72;
}
@media (max-width: 900px) {
  .service-co2-banner { grid-template-columns: 1fr; gap: 20px; }
  .service-co2-banner__right { border-left: none; padding-left: 0; border-top: 1px solid rgba(255,255,255,.15); padding-top: 20px; }
  .service-co2-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 580px) {
  .service-co2-grid { grid-template-columns: 1fr; }
}

/* ===========================
   Criteria — 3つの判断基準
=========================== */
.criteria {
  padding: 72px 0 80px;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}
.criteria__lead {
  text-align: center;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 900;
  color: var(--color-dark);
  margin-bottom: 52px;
  letter-spacing: -.02em;
  line-height: 1.4;
}
.criteria__lead span {
  color: var(--color-primary);
}
.criteria__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.criteria__card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px 28px 28px;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.criteria__card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.criteria__num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.criteria__title {
  font-size: 22px;
  font-weight: 900;
  color: var(--color-dark);
  margin-bottom: 12px;
  letter-spacing: -.02em;
}
.criteria__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.78;
  margin-bottom: 20px;
}
.criteria__points {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.criteria__points li {
  font-size: 13.5px;
  color: var(--color-text);
  padding: 8px 8px 8px 20px;
  position: relative;
  line-height: 1.6;
  border-bottom: 1px solid var(--color-border);
}
.criteria__points li:last-child {
  border-bottom: none;
}
.criteria__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 17px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}
.criteria__insight {
  background: linear-gradient(135deg, rgba(74,144,184,.08), rgba(74,144,184,.04));
  border-left: 3px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-top: auto;
}
.criteria__insight span {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--color-primary);
  background: rgba(74,144,184,.12);
  padding: 2px 8px;
  border-radius: 99px;
  margin-bottom: 6px;
}
@media (max-width: 768px) {
  .criteria__grid { grid-template-columns: 1fr; gap: 16px; }
}

/* Service item — 外部リンクボタン */
.service-item__site-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  padding: 8px 18px;
  border-radius: 99px;
  transition: var(--transition);
}
.service-item__site-link:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}
.service-item__site-link svg {
  width: 13px; height: 13px;
  flex-shrink: 0;
}

/* ===========================
   Purchase
=========================== */
.purchase {
  padding: 100px 0;
  background: var(--color-white);
}

.purchase__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  background: linear-gradient(135deg, #0d1624, #1a2d44);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  position: relative;
  overflow: hidden;
}
.purchase__inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(74,144,184,.2), transparent);
  pointer-events: none;
}

.section-tag--light { color: #B8DFF0; background: rgba(134,239,172,.1); }

.purchase__title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -.03em;
  margin-bottom: 20px;
  line-height: 1.2;
}

.purchase__desc {
  font-size: 15px;
  color: rgba(255,255,255,.7);
  line-height: 1.8;
  margin-bottom: 32px;
}

.purchase__items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.purchase__item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,.85);
  font-size: 15px;
  font-weight: 500;
}
.purchase__item-icon { font-size: 20px; }

.purchase__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 240px;
}

.purchase__circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.1);
}
.purchase__circle--1 {
  width: 200px; height: 200px;
  animation: rotateCw 20s linear infinite;
}
.purchase__circle--2 {
  width: 280px; height: 280px;
  animation: rotateCcw 30s linear infinite;
}
@keyframes rotateCw { to { transform: rotate(360deg); } }
@keyframes rotateCcw { to { transform: rotate(-360deg); } }

.purchase__box {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  text-align: center;
  backdrop-filter: blur(10px);
  z-index: 1;
}
.purchase__box-icon {
  font-size: 48px;
  font-weight: 900;
  color: #90D4EE;
  line-height: 1;
  margin-bottom: 12px;
}
.purchase__box-text {
  font-size: 18px;
  color: rgba(255,255,255,.8);
  line-height: 1.5;
}
.purchase__box-text strong { color: #90D4EE; font-size: 24px; font-weight: 900; }

/* ===========================
   Numbers
=========================== */
.numbers {
  padding: 80px 0;
  background: linear-gradient(135deg, #1A2840 0%, #0d1824 50%, #1A2840 100%);
  position: relative;
  overflow: hidden;
}
.numbers::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(74,144,184,.12) 1px, transparent 1px);
  background-size: 32px 32px;
}

.numbers .section-title { color: #fff; }
.numbers .section-tag { color: #90D4EE; background: rgba(74,222,128,.15); }

.numbers__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.number-card {
  text-align: center;
  padding: 40px 24px;
  position: relative;
}
.number-card::after {
  content: '';
  position: absolute;
  right: 0; top: 20%; bottom: 20%;
  width: 1px;
  background: rgba(255,255,255,.2);
}
.number-card:last-child::after { display: none; }

.number-card__value {
  font-size: 52px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  letter-spacing: -.04em;
  margin-bottom: 8px;
}
.number-card__unit {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

.number-card__label {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  margin-bottom: 6px;
}

.number-card__note {
  font-size: 12px;
  color: rgba(255,255,255,.6);
}
.number-card__prefix {
  font-size: 18px;
  font-weight: 700;
  color: rgba(255,255,255,.6);
  margin-right: 2px;
}
.numbers__group-note {
  text-align: center;
  font-size: 11px;
  color: rgba(255,255,255,.3);
  margin-top: 20px;
  letter-spacing: .04em;
}

/* ===========================
   Offices
=========================== */
.offices {
  padding: 100px 0;
  background: var(--color-bg);
}

.offices__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* コンパクト拠点レイアウト */
.offices__compact {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: stretch;
}
.offices__sub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.office-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  background: var(--color-white);
  transition: background .15s;
}
.office-row:nth-child(even) { border-right: none; }
.office-row:nth-last-child(-n+2) { border-bottom: none; }
.office-row:hover { background: var(--color-bg); }
.office-row__name {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 2px;
}
.office-row__addr {
  font-size: 11.5px;
  color: var(--color-text-muted);
  line-height: 1.5;
}
.office-row__tel {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  text-decoration: none;
}
.office-row__tel:hover { text-decoration: underline; }

.office-row--recruit {
  background: rgba(74,144,184,.06);
  border: 1px dashed rgba(74,144,184,.3);
  border-radius: 8px;
  margin: 8px 0;
}
.office-row__name--recruit {
  color: var(--color-primary);
  font-size: 12px;
  letter-spacing: .06em;
}
.office-row__name--recruit::before {
  content: '▶ ';
  font-size: 9px;
}
.office-row__tel--recruit {
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--color-primary);
  padding: 6px 14px;
  border-radius: 99px;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s;
}
.office-row__tel--recruit:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}
@media (max-width: 768px) {
  .offices__compact { grid-template-columns: 1fr; }
  .offices__sub-grid { grid-template-columns: 1fr; }
  .office-row { border-right: none; }
  .office-row:nth-last-child(-n+2) { border-bottom: 1px solid var(--color-border); }
  .office-row:last-child { border-bottom: none; }
}

.office-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
}
.office-card:hover {
  border-color: rgba(74,144,184,.3);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.office-card--main {
  background: linear-gradient(135deg, var(--color-dark), var(--color-dark-2));
  border: none;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
}
.office-card--main .office-card__name { color: #fff; font-size: 15px; }
.office-card--main .office-card__address { color: rgba(255,255,255,.6); }
.office-card--main .office-card__tel { color: #90D4EE; }

.office-card__entry {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.office-card__entry .office-card__name { margin-bottom: 4px; }
.office-card__entry .office-card__address { margin-bottom: 6px; }

.office-card__divider {
  height: 1px;
  background: rgba(255,255,255,.12);
  margin: 14px 0;
}

.office-card__badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  background: var(--color-primary);
  color: #fff;
  padding: 3px 10px;
  border-radius: 99px;
  margin-bottom: 12px;
  letter-spacing: .08em;
}

.office-card__name {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.office-card__address {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}

.office-card__tel {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  transition: var(--transition);
}
.office-card__tel:hover { color: var(--color-primary-dark); }

/* ===========================
   Company
=========================== */
.company {
  padding: 100px 0;
  background: var(--color-white);
}

.company__inner {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: start;
}

.company__table {
  width: 100%;
  border-collapse: collapse;
}
.company__table tr {
  border-bottom: 1px solid var(--color-border);
}
.company__table tr:last-child { border-bottom: none; }
.company__table th {
  padding: 16px 0;
  padding-right: 24px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  white-space: nowrap;
  vertical-align: top;
  width: 140px;
}
.company__table td {
  padding: 16px 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}
.company__table td a { color: var(--color-primary); font-weight: 600; }
.company__table td a:hover { color: var(--color-primary-dark); }

.company__philosophy {
  background: linear-gradient(135deg, #0D1A2E 0%, #1a3a5c 60%, #0f2d44 100%);
  border-radius: var(--radius-lg);
  padding: 56px 52px;
  position: relative;
  overflow: hidden;
}
.company__philosophy::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(45,189,170,.18) 0%, transparent 70%);
  pointer-events: none;
}
.company__philosophy::after {
  content: '"';
  position: absolute;
  bottom: -20px;
  left: 36px;
  font-size: 220px;
  font-weight: 900;
  color: rgba(45,189,170,.08);
  line-height: 1;
  pointer-events: none;
  font-family: Georgia, serif;
}

.company__philosophy-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--color-primary);
  text-transform: uppercase;
  border: 1px solid rgba(45,189,170,.4);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 28px;
}

.company__philosophy-catch {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.6;
  letter-spacing: -.02em;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,.15);
}

.company__philosophy-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.company__philosophy-body p {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  line-height: 1.9;
}

/* ===========================
   Contact
=========================== */
.contact .section-title {
  font-size: clamp(36px, 5.5vw, 64px);
  letter-spacing: -.03em;
}
.contact .section-desc {
  font-size: 17px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.contact {
  padding: 100px 0;
  background: linear-gradient(135deg, #0d1624, #1a2d44);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(74,144,184,.15), transparent);
  pointer-events: none;
}

.contact__cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  margin-top: 16px;
}
.btn--lg {
  font-size: 17px;
  padding: 18px 56px;
  letter-spacing: .06em;
  white-space: nowrap;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}

.contact__info { padding-top: 8px; }

.contact__tel-box {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.contact__tel-label {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  margin-bottom: 12px;
  letter-spacing: .05em;
}

.contact__tel-num {
  display: block;
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  letter-spacing: .02em;
  margin-bottom: 12px;
  transition: var(--transition);
}
.contact__tel-num:hover { color: #90D4EE; }

.contact__tel-hours {
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

/* Tel box subtle variant */
.contact__tel-box--subtle {
  background: transparent;
  border: 1px solid rgba(255,255,255,.08);
  padding: 16px 20px;
  opacity: .65;
}
.contact__tel-box--subtle .contact__tel-num {
  font-size: 18px;
  font-weight: 700;
}

/* Form */
.contact__form-wrap {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.contact__form { display: flex; flex-direction: column; gap: 32px; }

/* Form section groupings */
.form-section { display: flex; flex-direction: column; gap: 20px; }
.form-section__title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-check-note {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
  font-weight: 400;
}

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-required {
  font-size: 11px;
  font-weight: 700;
  background: #fef2f2;
  color: #dc2626;
  padding: 2px 6px;
  border-radius: 4px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  transition: var(--transition);
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(74,144,184,.12);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { appearance: none; cursor: pointer; }

.form-group--check { flex-direction: row; align-items: flex-start; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}
.form-check input[type="checkbox"] { display: none; }

.form-check-mark {
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  flex-shrink: 0;
  transition: var(--transition);
  position: relative;
}
.form-check input:checked + .form-check-mark {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.form-check input:checked + .form-check-mark::after {
  content: '';
  position: absolute;
  left: 4px; top: 1px;
  width: 8px; height: 12px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.form-check-label {
  font-size: 14px;
  color: var(--color-text-muted);
}
.form-link { color: var(--color-primary); font-weight: 600; }
.form-link:hover { color: var(--color-primary-dark); text-decoration: underline; }

/* ===========================
   Footer
=========================== */
.footer {
  background: #0f1f3d;
  padding: 64px 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer__logo-img {
  height: 34px;
  width: auto;
  display: block;
}
.footer__logo-company {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,.85);
  letter-spacing: .04em;
  white-space: nowrap;
}

.footer__tagline {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  margin-bottom: 16px;
}

.footer__follow {
  margin-top: 24px;
}
.footer__follow-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .2em;
  color: rgba(255,255,255,.4);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.footer__follow-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.footer__follow-btn {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.25);
  padding: 6px 14px;
  border-radius: 99px;
  transition: all 0.2s ease;
}
.footer__follow-btn:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.5);
  color: #fff;
}

.footer__address {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  line-height: 1.7;
  margin-bottom: 12px;
}

.footer__tel {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  transition: var(--transition);
}
.footer__tel:hover { color: #90D4EE; }

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding-top: 4px;
}

.footer__nav-title {
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,.5);
  letter-spacing: .1em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer__nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer__nav a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.footer__nav a:hover { color: #fff; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.footer__copy {
  font-size: 13px;
  color: rgba(255,255,255,.35);
}

.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a {
  font-size: 13px;
  color: rgba(255,255,255,.35);
  transition: var(--transition);
}
.footer__links a:hover { color: rgba(255,255,255,.7); }

/* ===========================
   Back to Top
=========================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(74,144,184,.4);
  opacity: 0;
  transform: translateY(16px);
  transition: var(--transition);
  pointer-events: none;
  z-index: 50;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(74,144,184,.5);
}
.back-to-top svg { width: 20px; height: 20px; }

/* ===========================
   Form error state
=========================== */
.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
  border-color: #dc2626;
  background: #fef2f2;
}
.form-group--error .form-check-mark {
  border-color: #dc2626;
}

/* Active nav link */
.nav__link.active {
  color: #90D4EE;
}

/* ===========================
   Responsive
=========================== */
@media (max-width: 1024px) {
  .strengths__grid { grid-template-columns: repeat(2, 1fr); }
  .numbers__grid { grid-template-columns: repeat(2, 1fr); }
  .number-card:nth-child(2)::after { display: none; }
  .company__inner { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
  .purchase__inner { grid-template-columns: 1fr; padding: 48px 40px; }
  .purchase__visual { display: none; }
}

@media (max-width: 768px) {
  .nav__menu {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(15,23,42,.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .nav__menu.open { transform: translateY(0); opacity: 1; }
  .nav__link { width: 100%; padding: 12px 16px; }
  .nav__toggle { display: flex; }

  .hero__stats {
    flex-direction: column;
    gap: 0;
    padding: 24px;
    width: 100%;
  }
  .hero__stat { padding: 16px 0; }
  .hero__stat-divider { width: 100%; height: 1px; }

  .strengths__grid { grid-template-columns: 1fr; }
  .service__grid { grid-template-columns: 1fr; }
  .offices__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
  .contact__form-wrap { padding: 32px 24px; }

  .hero__actions { flex-direction: column; }
  .btn { width: 100%; }
}

@media (max-width: 480px) {
  .offices__grid { grid-template-columns: 1fr; }
  .numbers__grid { grid-template-columns: 1fr; }
  .number-card::after { display: none; }
  .hero__title { font-size: 36px; }
}

/* ===========================
   Hero Background Image
=========================== */
.hero__img-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/photos/1486406146926-c627a92ad1ab_1920.jpg');
  background-size: cover;
  background-position: center;
  opacity: .18;
  transition: transform 0.1s linear;
  will-change: transform;
}

/* ===========================
   Service Card Images
=========================== */
.service-item__img {
  position: relative;
  height: 180px;
  margin: -36px -36px 24px;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.service-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.service-item:hover .service-item__img img { transform: scale(1.03); }
.service-item__img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(255,255,255,.95) 100%);
}

/* ===========================
   Flow Section
=========================== */
.flow {
  position: relative;
  padding: 100px 0;
  background: var(--color-white);
  overflow: hidden;
}
.flow__bg-deco {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,144,184,.06), transparent 70%);
  top: -100px; right: -150px;
  pointer-events: none;
}

.flow__track {
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: rgba(74,144,184,.3) transparent;
}
.flow__track::-webkit-scrollbar { height: 4px; }
.flow__track::-webkit-scrollbar-track { background: transparent; }
.flow__track::-webkit-scrollbar-thumb { background: rgba(74,144,184,.3); border-radius: 4px; }

.flow__step {
  flex: 1;
  min-width: 180px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  transform-style: preserve-3d;
  will-change: transform;
}
.flow__step:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(74,144,184,.25);
}

.flow__step-img {
  height: 140px;
  overflow: hidden;
}
.flow__step-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.flow__step:hover .flow__step-img img { transform: scale(1.03); }

.flow__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  border-radius: 50%;
  margin: 16px 16px 8px;
  letter-spacing: .02em;
}

.flow__step-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-dark);
  padding: 0 16px;
  margin-bottom: 8px;
}

.flow__step-text {
  font-size: 12px;
  color: var(--color-text-muted);
  padding: 0 16px 20px;
  line-height: 1.7;
}

.flow__connector {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  margin-top: 70px;
  color: var(--color-primary);
  opacity: .5;
}
.flow__connector svg { width: 40px; height: 24px; }

/* ===========================
   Voice / Testimonials Section
=========================== */
.voice {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}
.voice__bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/photos/1497366216548-37526070297c_1920.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.voice__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,.92), rgba(20,50,30,.9));
}
.voice .container { position: relative; z-index: 1; }

.voice__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.voice-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
  transform-style: preserve-3d;
  will-change: transform;
  position: relative;
  overflow: hidden;
}
.voice-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(74,144,184,.08), transparent);
  opacity: 0;
  transition: var(--transition);
}
.voice-card:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(74,144,184,.3);
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.voice-card:hover::before { opacity: 1; }

.voice-card__quote-mark {
  font-size: 80px;
  font-family: Georgia, serif;
  color: rgba(255,255,255,.35);
  line-height: .8;
  margin-bottom: 16px;
  opacity: .6;
}

.voice-card__text {
  font-size: 14px;
  color: rgba(255,255,255,.8);
  line-height: 1.85;
  margin-bottom: 24px;
  flex-grow: 1;
}

.voice-card__stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px;
  background: rgba(74,144,184,.12);
  border: 1px solid rgba(74,144,184,.2);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}
.voice-card__stat-num {
  font-size: 36px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  letter-spacing: -.04em;
}
.voice-card__stat-pct { font-size: 20px; }
.voice-card__stat-label {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,.7);
}

.voice-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.voice-card__avatar-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(74,144,184,.15);
  border: 2px solid rgba(74,144,184,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}
.voice-card__avatar-icon svg {
  width: 28px; height: 28px;
}
.voice-card__avatar {
  width: 52px; height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(74,144,184,.4);
  flex-shrink: 0;
}
.voice-card__name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 3px;
}
.voice-card__role {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  margin-bottom: 4px;
}
.voice-card__stars {
  font-size: 13px;
  color: #fbbf24;
  letter-spacing: .05em;
}

/* ===========================
   Custom Cursor
=========================== */
@media (pointer: fine) {
  * { cursor: none !important; }
}
.cursor-dot {
  position: fixed;
  width: 8px; height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width .2s, height .2s, background .2s;
  will-change: left, top;
}
.cursor-ring {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid rgba(74,144,184,.5);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width .3s, height .3s, border-color .3s;
  will-change: left, top;
}
.cursor-dot--hover {
  width: 14px; height: 14px;
  background: #90D4EE;
}
.cursor-ring--hover {
  width: 52px; height: 52px;
  border-color: rgba(74,144,184,.8);
}

/* ===========================
   Ripple Effect
=========================== */
.btn { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,.3);
  transform: translate(-50%, -50%) scale(0);
  animation: rippleAnim 0.6s ease-out forwards;
  pointer-events: none;
  width: 10px; height: 10px;
}
@keyframes rippleAnim {
  to { transform: translate(-50%, -50%) scale(30); opacity: 0; }
}

/* ===========================
   Button Shine Effect
=========================== */
.btn--primary::after {
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%; height: 100%;
  background: linear-gradient(to right, transparent, rgba(255,255,255,.25), transparent);
  transform: skewX(-20deg);
  transition: left .5s ease;
}
.btn--primary:hover::after { left: 125%; }

/* ===========================
   Tilt Card (3D)
=========================== */
.flow__step,
.voice-card,
.strength-card,
.service-item {
  transform-style: preserve-3d;
  transition: transform 0.15s ease, box-shadow var(--transition), border-color var(--transition);
}

/* ===========================
   Floating deco animation
=========================== */
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.purchase__box { animation: floatY 4s ease-in-out infinite; }

/* ===========================
   Image lazy-load blur-in
=========================== */
img[loading="lazy"] {
  transition: filter 0.4s ease, opacity 0.4s ease;
}
img[loading="lazy"]:not(.loaded) {
  filter: blur(8px);
  opacity: .6;
}
img[loading="lazy"].loaded {
  filter: blur(0);
  opacity: 1;
}

/* ===========================
   Shimmer on strength-card hover
=========================== */
.strength-card { overflow: hidden; }
.strength-card::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(to right, transparent, rgba(255,255,255,.5), transparent);
  transform: skewX(-20deg);
  transition: left .5s ease;
  pointer-events: none;
}
.strength-card:hover::after { left: 150%; }

/* ===========================
   Number glow pulse
=========================== */
.numbers .number-card__value {
  animation: numGlow 3s ease-in-out infinite;
}
@keyframes numGlow {
  0%, 100% { text-shadow: none; }
  50% { text-shadow: 0 0 24px rgba(74,222,128,.5); }
}

/* Dot grid pattern for light sections */
.strengths,
.offices {
  background-image: radial-gradient(circle, rgba(74,144,184,.08) 1px, transparent 1px);
  background-size: 28px 28px;
  background-color: var(--color-white);
}

/* ===========================
   Hero — Animated Orbs (ambient glow)
=========================== */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.hero__orb--1 {
  width: 700px; height: 700px;
  background: rgba(74,144,184,.13);
  top: -200px; right: -150px;
  animation: heroOrb1 18s ease-in-out infinite;
}
.hero__orb--2 {
  width: 450px; height: 450px;
  background: rgba(14,165,233,.09);
  bottom: -100px; left: 20%;
  animation: heroOrb2 24s ease-in-out infinite;
}
.hero__orb--3 {
  width: 350px; height: 350px;
  background: rgba(74,144,184,.07);
  top: 40%; left: -100px;
  animation: heroOrb3 14s ease-in-out infinite;
}
@keyframes heroOrb1 {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%  { transform: translate(-80px, 60px) scale(1.12); }
  66%  { transform: translate(50px, -40px) scale(0.92); }
}
@keyframes heroOrb2 {
  0%, 100% { transform: translate(0,0); }
  50%  { transform: translate(-100px, -80px); }
}
@keyframes heroOrb3 {
  0%, 100% { transform: translate(0,0) scale(1); }
  50%  { transform: translate(80px, -50px) scale(1.15); }
}

/* Grid overlay */
.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

/* ===========================
   Hero — Floating Data Cards
=========================== */
.hero__floats {
  position: absolute;
  right: max(4%, calc(50% - 560px));
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 3;
  pointer-events: none;
}

.hero__float-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  padding: 18px 22px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  text-align: center;
  opacity: 0;
  transform: translateX(60px);
  min-width: 110px;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
}
.hero__float-card--1 {
  animation: floatCardIn 0.9s 0.6s cubic-bezier(0.34,1.56,0.64,1) forwards,
             floatBob 7s 1.8s ease-in-out infinite;
}
.hero__float-card--2 {
  animation: floatCardIn 0.9s 1.0s cubic-bezier(0.34,1.56,0.64,1) forwards,
             floatBob 7s 2.4s ease-in-out infinite;
}
.hero__float-card--3 {
  animation: floatCardIn 0.9s 1.4s cubic-bezier(0.34,1.56,0.64,1) forwards,
             floatBob 7s 3.0s ease-in-out infinite;
}
@keyframes floatCardIn {
  to { opacity: 1; transform: translateX(0); }
}
@keyframes floatBob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.hero__float-icon {
  font-size: 22px;
  margin-bottom: 6px;
  line-height: 1;
}
.hero__float-val {
  font-size: 18px;
  font-weight: 900;
  color: #90D4EE;
  letter-spacing: -.03em;
  line-height: 1.1;
  margin-bottom: 4px;
}
.hero__float-lbl {
  font-size: 10px;
  color: rgba(255,255,255,.5);
  letter-spacing: .04em;
  line-height: 1.4;
}


/* ===========================
   Hero — Word Rotator
=========================== */
.hero__title-prefix {
  background: linear-gradient(135deg, #38BDF8, #7DD3FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__word-rotate {
  display: inline-block;
  color: #fff;
  -webkit-text-fill-color: #fff;
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.hero__word-rotate.is-leaving {
  opacity: 0;
  transform: translateY(-16px);
}
.hero__word-rotate.is-entering {
  opacity: 0;
  transform: translateY(16px);
}

/* ===========================
   Particle Orbs
=========================== */
.particle-orb {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74,144,184,.6), rgba(74,144,184,.1));
  animation: float linear infinite;
  box-shadow: 0 0 12px rgba(74,144,184,.4);
}

/* ===========================
   Purchase — Image Visual
=========================== */
.purchase__img-wrap {
  position: relative;
  height: 100%;
  min-height: 340px;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.purchase__img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s ease;
}
.purchase__img-wrap:hover .purchase__img { transform: scale(1.04); }

.purchase__img-badge {
  position: absolute;
  bottom: 28px; right: 28px;
  background: rgba(8,14,26,.65);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 18px;
  padding: 20px 28px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}
.purchase__img-badge-icon {
  font-size: 34px;
  font-weight: 900;
  color: #90D4EE;
  line-height: 1;
  margin-bottom: 10px;
}
.purchase__img-badge-text {
  font-size: 16px;
  color: rgba(255,255,255,.88);
  line-height: 1.55;
}
.purchase__img-badge-text strong {
  display: block;
  color: #90D4EE;
  font-size: 22px;
  font-weight: 900;
}

/* ================================================
   Purchase — Redesigned Card Layout
   ================================================ */
.purchase {
  background: var(--color-bg);
}

/* カテゴリカードグリッド */
.purchase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.purchase-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(74,144,184,.12);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
  transition: all .35s cubic-bezier(.4,0,.2,1);
}
.purchase-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(74,144,184,.1);
  border-color: rgba(74,144,184,.3);
}

.purchase-card__img {
  position: relative;
  height: 230px;
  overflow: hidden;
}
.purchase-card__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .65s ease;
  display: block;
}
.purchase-card:hover .purchase-card__img img { transform: scale(1.03); }
.purchase-card__img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 35%, rgba(0,0,0,.58) 100%);
}
.purchase-card__label {
  position: absolute; bottom: 16px; left: 18px;
  font-size: 17px; font-weight: 800;
  color: #fff; letter-spacing: -.01em;
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
}

.purchase-card__body { padding: 20px 22px 24px; }
.purchase-card__badge {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  background: rgba(74,144,184,.1);
  color: #4A90B8;
  border: 1px solid rgba(74,144,184,.22);
  padding: 3px 10px;
  border-radius: 99px;
  letter-spacing: .07em;
  margin-bottom: 10px;
}
.purchase-card__text {
  font-size: 13.5px;
  color: #64748b;
  line-height: 1.8;
}

/* フロー＋CTAバナー */
.purchase-flow {
  background: linear-gradient(135deg, #1A2840 0%, #0d1824 60%, #1A2840 100%);
  border-radius: 24px;
  padding: 44px 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.purchase-flow::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 90% at 25% 50%, rgba(74,144,184,.14), transparent);
  pointer-events: none;
}
.purchase-flow::after {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.purchase-flow__steps {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.purchase-flow__step {
  text-align: center;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  min-width: 88px;
}
.purchase-flow__step-icon {
  font-size: 26px; margin-bottom: 6px; line-height: 1;
  display: block;
}
.purchase-flow__step-label {
  font-size: 11px; font-weight: 700;
  color: rgba(255,255,255,.65); letter-spacing: .04em;
  line-height: 1.4;
  white-space: nowrap;
}
.purchase-flow__step--accent {
  border-color: rgba(74,222,128,.3);
  background: rgba(74,222,128,.08);
}
.purchase-flow__step--accent .purchase-flow__step-label { color: #90D4EE; }
.purchase-flow__step--accent .purchase-flow__step-icon {
  filter: drop-shadow(0 0 10px rgba(74,222,128,.6));
}
.purchase-flow__arrow {
  font-size: 18px; color: rgba(255,255,255,.2);
  flex-shrink: 0; padding: 0 2px;
}
.purchase-flow .btn--primary {
  flex-shrink: 0;
  position: relative; z-index: 1;
  white-space: nowrap;
}

/* 買取CTA行 */
.purchase-cta-row {
  text-align: center;
  margin-top: 40px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}
.btn--primary.btn--alt {
  background: var(--color-dark);
  box-shadow: 0 4px 20px rgba(26,40,64,.35);
}
.btn--primary.btn--alt:hover {
  background: var(--color-dark-2);
  box-shadow: 0 4px 20px rgba(26,40,64,.32);
}

/* ===========================
   Responsive — new sections
=========================== */
@media (max-width: 1024px) {
  .voice__grid { grid-template-columns: 1fr; gap: 20px; }
  .flow__track { gap: 0; }
  .purchase-grid { grid-template-columns: 1fr; }
  .purchase-flow {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 32px;
  }
  .purchase-flow__steps { gap: 6px; }
}
@media (max-width: 768px) {
  .purchase-flow__steps { flex-wrap: wrap; }
  .purchase-flow__step { min-width: 72px; }
}
@media (max-width: 768px) {
  .flow__connector { display: none; }
  .flow__track {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    overflow: visible;
  }
  .voice__bg { background-attachment: scroll; }
}
@media (max-width: 480px) {
  .flow__track { grid-template-columns: 1fr; }
  .cursor-dot, .cursor-ring { display: none; }
}

/* ===========================
   NEWS / TOPICS Section
=========================== */
.news {
  padding: 80px 0 72px;
  background: var(--color-white);
}

.news__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.news-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.news-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}

.news-card__img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.news-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-card__img img {
  transform: scale(1.06);
}

.news-card__cat {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 4px 10px;
  border-radius: 99px;
}

.news-card__cat--press      { background: #DBEAFE; color: #1D4ED8; }
.news-card__cat--info       { background: #D1FAE5; color: #065F46; }
.news-card__cat--recruit    { background: #FEF3C7; color: #92400E; }
.news-card__cat--regulation { background: #FEE2E2; color: #991B1B; }

.news-card__body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.news-card__date {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: .06em;
}

.news-card__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--color-dark);
}

.news-card__excerpt {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-top: 2px;
}

.news__more {
  display: flex;
  justify-content: center;
}

.news__more-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: 99px;
  padding: 12px 28px;
  letter-spacing: .04em;
  transition: background var(--transition), color var(--transition);
}

.news__more-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* Responsive */
@media (max-width: 1024px) {
  .news__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .news { padding: 56px 0 52px; }
  .news__grid { grid-template-columns: 1fr; gap: 20px; }
  .news-card__title { font-size: 14px; }
}

/* ===========================
   REGULATION NEWS Section
=========================== */
.regulation {
  padding: 80px 0 72px;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.regulation .news-card {
  background: var(--color-white);
}

@media (max-width: 640px) {
  .regulation { padding: 56px 0 52px; }
}