:root {
  --bg: #f8fafc;
  --text: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --primary: #ff3048;
  --primary-dark: #e11d48;
  --card: #ffffff;
  --shadow: 0 12px 30px rgba(17, 24, 39, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Noto Sans JP', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

#scroll-progress-bar {
  position: fixed;
  inset: 0 auto auto 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, #ff7a8a, var(--primary));
  z-index: 60;
}

#opening-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, #ffffff 0%, #fce7ea 60%, #f8fafc 100%);
  z-index: 80;
  display: grid;
  place-items: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#opening-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.opening-inner {
  text-align: center;
  padding: 1.5rem;
  animation: openingZoom 1.4s ease both;
}

.opening-logo {
  width: min(500px, 88vw);
  margin-inline: auto;
}

.opening-copy {
  font-family: 'Zen Old Mincho', serif;
  letter-spacing: 0.08em;
  color: #334155;
  margin: 0.9rem 0 1.2rem;
}

.opening-skip-btn {
  border: 1px solid #cbd5e1;
  background: white;
  color: #334155;
  padding: 0.45rem 1.2rem;
  border-radius: 999px;
  cursor: pointer;
}

@keyframes openingZoom {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

#site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 78px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  width: min(320px, 58vw);
}

#main-nav-list {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

#main-nav-list a {
  text-decoration: none;
  color: #1f2937;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.25rem 0.3rem;
  position: relative;
}

#main-nav-list a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
  background: var(--primary);
}

#main-nav-list a:hover::after,
#main-nav-list a:focus-visible::after {
  transform: scaleX(1);
}

.cta-link {
  color: var(--primary) !important;
}

.hero-section {
  position: relative;
  min-height: 82vh;
  display: grid;
  place-items: center;
  overflow: clip;
}

.hero-bg-layer {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 350px at 15% 15%, rgba(255, 48, 72, 0.18), transparent 60%),
    radial-gradient(700px 320px at 85% 80%, rgba(236, 72, 153, 0.18), transparent 60%),
    linear-gradient(160deg, #fff 10%, #f8fafc 55%, #fee2e2 130%);
}

.hero-content {
  position: relative;
  padding-block: 3rem;
}

.hero-kicker {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #475569;
  font-size: 0.82rem;
}

.hero-content h1 {
  font-size: clamp(2rem, 4.6vw, 4rem);
  line-height: 1.2;
  margin: 0.45rem 0 1rem;
}

.hero-description {
  max-width: 60ch;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 700;
  padding: 0.72rem 1.2rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(120deg, #ff4a5f, var(--primary-dark));
  color: #fff;
  box-shadow: 0 6px 16px rgba(225, 29, 72, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-ghost {
  border-color: #cbd5e1;
  background: #fff;
  color: #334155;
}

.section-block {
  padding: 5rem 0;
}

.alt-bg {
  background: #fff;
}

.section-title {
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  margin: 0 0 1.25rem;
}

.section-description {
  color: var(--muted);
  margin-top: -0.4rem;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.fact-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

.fact-value {
  font-size: 2rem;
  font-weight: 800;
  margin: 0;
  color: var(--primary-dark);
}

.fact-label {
  margin: 0.35rem 0 0;
  color: #475569;
  font-weight: 600;
}

.two-column {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.8rem;
}

.info-list,
.check-list,
.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  padding: 0.68rem 0;
}

.info-list span {
  color: #6b7280;
}

.sub-title {
  font-size: 1.25rem;
  margin-top: 0;
}

.check-list li {
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: 0.55rem;
}

.check-list li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: var(--primary-dark);
}

.note-text {
  color: #64748b;
  font-size: 0.95rem;
}

.departments-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.department-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem 1.2rem 1rem;
  box-shadow: var(--shadow);
}

.department-card h3 {
  margin: 0 0 0.45rem;
}

.department-card ul {
  margin: 0.6rem 0 0;
  padding-left: 1.1rem;
}

.timeline-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.timeline-list li {
  border-left: 4px solid var(--primary);
  background: #fff;
  padding: 1rem 1.1rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.timeline-list p {
  margin: 0.35rem 0 0;
}

.form-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.2fr;
  gap: 1.2rem;
}

.form-side {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.plain-list li {
  margin: 0.35rem 0;
}

.fcewa-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.fcewa-form label,
.fcewa-form legend {
  display: block;
  margin-top: 0.8rem;
  font-weight: 700;
  color: #1f2937;
}

.fcewa-form input,
.fcewa-form select,
.fcewa-form textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  font: inherit;
  margin-top: 0.35rem;
  background: #fff;
}

.fcewa-form fieldset {
  border: 1px solid #dbe2ea;
  border-radius: 10px;
  padding: 0.8rem;
  margin-top: 1rem;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 0.85rem;
  margin-top: 0.5rem;
}

.checkbox-grid label,
.checkbox-line {
  font-weight: 500;
  display: flex !important;
  align-items: start;
  gap: 0.55rem;
}

.checkbox-grid input,
.checkbox-line input {
  width: auto;
  margin-top: 0.25rem;
}

.form-result {
  margin: 0.8rem 0 0;
  font-weight: 700;
  min-height: 1.4rem;
}

.form-result.is-error {
  color: #b91c1c;
}

.form-result.is-success {
  color: #166534;
}

.faq-list {
  display: grid;
  gap: 0.6rem;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.7rem 1rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
}

#site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding: 2.5rem 0;
}

.footer-inner {
  text-align: center;
}

.footer-logo {
  width: min(420px, 90%);
  margin: 0 auto 1rem;
  filter: brightness(0) invert(1) saturate(0);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: 0.8s ease;
}

.reveal[data-reveal='left'] {
  transform: translateX(-24px);
}

.reveal[data-reveal='right'] {
  transform: translateX(24px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

@media (max-width: 960px) {
  #main-nav-list {
    display: none;
  }

  .facts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-column,
  .form-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section-block {
    padding: 4rem 0;
  }

  .facts-grid,
  .departments-grid,
  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: clamp(1.8rem, 8vw, 2.2rem);
  }
}