* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.8;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #e5e7eb;
  backdrop-filter: blur(12px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-image {
  width: 54px;
  height: auto;
  display: block;
}

.logo-text {
  display: grid;
  line-height: 1.35;
}

.logo-text strong {
  font-size: 18px;
  letter-spacing: 0.04em;
}

.logo-text small {
  color: #667085;
  font-size: 12px;
}

.nav {
  display: flex;
  gap: 22px;
  color: #475467;
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover {
  color: #0d70a8;
}

.hero {
  padding: 104px 0;
  background:
    radial-gradient(circle at 80% 15%, rgba(66, 183, 223, 0.35), transparent 35%),
    linear-gradient(135deg, #08263c 0%, #0d70a8 100%);
  color: #ffffff;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 56px;
  align-items: center;
}

.label {
  margin: 0 0 12px;
  color: #0d70a8;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero .label {
  color: #c8f1ff;
}

.hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.25;
  letter-spacing: 0.04em;
}

.lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: #e5f8ff;
  font-size: 17px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-width: 170px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: 0.25s;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: #ffffff;
  color: #0d70a8;
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.65);
  color: #ffffff;
}

.hero-card {
  padding: 34px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.96);
  color: #1f2937;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
}

.card-label {
  margin: 0 0 8px;
  color: #0d70a8;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.tel {
  margin: 0 0 12px;
  color: #08263c;
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.2;
}

.address {
  margin: 0;
  color: #475467;
}

.section {
  padding: 88px 0;
}

.section-heading {
  margin-bottom: 38px;
  text-align: center;
}

.section-heading h2 {
  margin: 0 0 12px;
  color: #08263c;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.35;
}

.section-heading p {
  max-width: 760px;
  margin: 0 auto;
  color: #667085;
}

.news-section,
.company-section {
  background: #f5f9fc;
}

.notice-card {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 34px;
  align-items: center;
  padding: 34px;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(13, 112, 168, 0.09);
}

.notice-text time {
  color: #0d70a8;
  font-weight: 800;
}

.notice-text h3 {
  margin: 10px 0 10px;
  color: #08263c;
  font-size: 26px;
}

.notice-text p {
  margin: 0;
  color: #475467;
}

.notice-image {
  padding: 16px;
  border-radius: 20px;
  background: #f8fafc;
  border: 1px dashed #b9d7e8;
  text-align: center;
}

.notice-image img {
  width: 100%;
  border-radius: 14px;
  background: linear-gradient(135deg, #e6f6fc, #ffffff);
}

.notice-image p {
  margin: 12px 0 0;
  color: #667085;
  font-size: 13px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-card {
  padding: 26px;
  border-radius: 22px;
  background: #ffffff;
  border: 1px solid #e5edf3;
  box-shadow: 0 14px 36px rgba(13, 112, 168, 0.07);
}

.service-card h3 {
  margin: 0 0 10px;
  color: #0d70a8;
  font-size: 19px;
}

.service-card p {
  margin: 0;
  color: #667085;
  font-size: 14px;
}

.preparing-box {
  padding: 38px;
  border-radius: 28px;
  background: #ffffff;
  box-shadow: 0 18px 50px rgba(13, 112, 168, 0.08);
}

.preparing-box h3 {
  margin: 0 0 10px;
  color: #08263c;
  font-size: 24px;
}

.preparing-box p {
  margin: 0 0 26px;
  color: #667085;
}

.company-list {
  margin: 0;
  border-top: 1px solid #e5edf3;
}

.company-list div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid #e5edf3;
}

.company-list dt {
  color: #0d70a8;
  font-weight: 800;
}

.company-list dd {
  margin: 0;
  color: #475467;
}

.contact-section {
  background: linear-gradient(135deg, #08263c, #0d70a8);
  color: #ffffff;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 42px;
  align-items: center;
}

.contact-section .label {
  color: #c8f1ff;
}

.contact-section h2 {
  margin: 0 0 16px;
  font-size: clamp(30px, 4vw, 44px);
}

.contact-section p {
  margin: 0;
  color: #e5f8ff;
}

.contact-card {
  padding: 30px;
  border-radius: 24px;
  background: #ffffff;
  color: #1f2937;
}

.contact-card p {
  color: #475467;
}

.contact-tel {
  margin-bottom: 8px !important;
  color: #0d70a8 !important;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.2;
}

.footer {
  padding: 28px 0;
  background: #061a2a;
  color: #ffffff;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.footer p,
.footer small {
  margin: 0;
}

.footer small {
  color: #cbd5e1;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero-inner,
  .notice-card,
  .contact-inner {
    grid-template-columns: 1fr;
  }

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

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

  .header-inner {
    min-height: 70px;
  }

  .logo-text strong {
    font-size: 15px;
  }

  .logo-text small {
    display: none;
  }

  .hero {
    padding: 70px 0;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 62px 0;
  }

  .notice-card,
  .preparing-box {
    padding: 24px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}