:root {
  --bg: #f7fbfb;
  --surface: #ffffff;
  --surface-strong: #f1f9f7;
  --line: #dbe9e7;
  --text: #163235;
  --muted: #5a7274;
  --accent: #187d88;
  --accent-strong: #0f5f74;
  --accent-soft: #ddf2ed;
  --shadow: 0 18px 50px rgba(18, 61, 66, 0.08);
  --radius: 24px;
  --radius-sm: 16px;
  --container: min(1120px, calc(100% - 40px));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(24, 125, 136, 0.14), transparent 30%),
    linear-gradient(180deg, #fcfefe 0%, var(--bg) 100%);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

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

.site-shell {
  min-height: 100vh;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid rgba(219, 233, 231, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, #1b93a0 0%, #6bc2a5 100%);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent-strong);
}

.nav-cta {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong) !important;
  font-weight: 700;
}

.menu-toggle {
  display: none;
  position: relative;
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--accent-strong);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero {
  padding: 72px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 28px;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(24, 125, 136, 0.1);
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-lead,
.section-heading p,
.about-panel p,
.contact-card p {
  color: var(--muted);
  font-size: 1.03rem;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(15, 95, 116, 0.16);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #2da38c 100%);
  color: #fff;
}

.button-secondary {
  background: #fff;
  color: var(--accent-strong);
  border: 1px solid var(--line);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.hero-points li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(219, 233, 231, 0.9);
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.hero-card,
.mini-note,
.problem-card,
.service-card,
.price-card,
.about-panel,
.contact-card,
.faq-item {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(219, 233, 231, 0.95);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 30px;
  border-radius: 30px;
}

.card-label,
.price-label {
  margin: 0 0 16px;
  color: var(--accent-strong);
  font-weight: 800;
}

.metric-list {
  display: grid;
  gap: 16px;
}

.metric-list div {
  padding: 16px 18px;
  border-radius: 18px;
  background: var(--surface-strong);
}

.metric-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.02rem;
}

.metric-list span,
.mini-note p {
  color: var(--muted);
}

.mini-note {
  padding: 22px 24px;
  border-radius: 24px;
}

.mini-note span {
  display: inline-block;
  margin-bottom: 8px;
  font-weight: 800;
}

.mini-note p {
  margin: 0;
}

.section {
  padding: 52px 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(241, 249, 247, 0.62) 0%, rgba(255, 255, 255, 0) 100%);
}

.section-accent {
  position: relative;
}

.section-accent::before {
  content: "";
  position: absolute;
  inset: 42px 0 auto;
  height: 280px;
  background: linear-gradient(135deg, rgba(24, 125, 136, 0.08), rgba(107, 194, 165, 0.14));
  z-index: -1;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.3;
}

.section-heading p {
  margin: 0;
}

.problem-grid,
.service-grid,
.pricing-grid {
  display: grid;
  gap: 18px;
}

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

.problem-card {
  padding: 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.service-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card {
  padding: 22px;
  border-radius: var(--radius-sm);
  min-height: 110px;
  display: flex;
  align-items: center;
  font-weight: 700;
}

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

.price-card {
  padding: 30px;
  border-radius: var(--radius);
}

.price-card h3 {
  margin: 0 0 10px;
  font-size: 1.6rem;
}

.price-value {
  margin: 0 0 18px;
  color: var(--accent-strong);
  font-size: 2rem;
  font-weight: 800;
}

.price-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.featured {
  background: linear-gradient(180deg, #ffffff 0%, #f3fbf8 100%);
  border-color: rgba(24, 125, 136, 0.24);
}

.section-note {
  margin: 22px 0 0;
  color: var(--muted);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.flow-list li {
  padding: 24px 20px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.flow-list strong {
  display: block;
  margin-bottom: 10px;
}

.flow-list span {
  color: var(--muted);
  font-size: 0.95rem;
}

.about-panel {
  padding: 34px;
  border-radius: 30px;
}

.about-panel .section-heading {
  margin-bottom: 14px;
}

.about-panel p {
  margin: 0;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 0 24px;
  border-radius: 20px;
  overflow: hidden;
}

.faq-item summary {
  padding: 20px 0;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 0 22px;
  color: var(--muted);
}

.contact-section {
  padding-bottom: 82px;
}

.contact-card {
  padding: 34px;
  border-radius: 32px;
  text-align: center;
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 980px) {
  .hero-grid,
  .problem-grid,
  .service-grid,
  .pricing-grid,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .flow-list li {
    min-height: auto;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 20px;
    right: 20px;
    display: grid;
    gap: 10px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 10px;
    border-radius: 14px;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: var(--surface-strong);
  }

  .hero {
    padding-top: 46px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100% - 28px, 1120px);
    --radius: 22px;
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-text small {
    font-size: 0.78rem;
  }

  .hero-copy h1 {
    font-size: 2rem;
  }

  .hero-card,
  .price-card,
  .about-panel,
  .contact-card {
    padding: 24px;
  }

  .problem-card,
  .service-card,
  .flow-list li,
  .faq-item {
    padding-left: 18px;
    padding-right: 18px;
  }

  .section {
    padding: 42px 0;
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .contact-actions {
    flex-direction: column;
  }
}