:root {
  --primary-color: #0a2233;
  --secondary-color: #1c4b5d;
  --accent-color: #4fd1c5;
  --text-color: #1d1d1d;
  --bg-color: #f6fafc;
  --max-width: 1120px;
  --shadow-soft: 0 14px 38px rgba(10, 34, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.7;
}

header {
  background: linear-gradient(135deg, rgba(10, 34, 51, 0.97), rgba(28, 75, 93, 0.95));
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 16px;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.site-title {
  margin: 0;
  font-size: 1.8rem;
  letter-spacing: 0.04em;
}

.tagline {
  margin: 0;
  opacity: 0.85;
  font-size: 0.95rem;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
}

nav {
  margin-top: 16px;
}

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

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  color: #ffffff;
  border-radius: 20px;
  font-size: 0.85rem;
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.08);
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.nav-list a:hover,
.nav-list a:focus {
  background-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.hero {
  background: #ffffff;
  padding: 32px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 24px;
}

.hero-text h1 {
  margin-top: 0;
  font-size: 2.4rem;
  color: var(--primary-color);
}

.hero-text p {
  margin: 0;
  font-size: 1.1rem;
  color: rgba(29, 29, 29, 0.92);
}

.hero-visual img {
  width: 100%;
  border-radius: 14px;
  display: block;
  box-shadow: var(--shadow-soft);
}

section {
  background: #ffffff;
  border-radius: 18px;
  padding: 32px;
  margin-top: 32px;
  box-shadow: var(--shadow-soft);
}

section h2 {
  margin-top: 0;
  font-size: 1.8rem;
  color: var(--primary-color);
}

section h3 {
  margin-top: 24px;
  font-size: 1.4rem;
  color: var(--secondary-color);
}

section p {
  margin-top: 16px;
  font-size: 1.02rem;
}

section ul {
  margin-top: 16px;
  padding-left: 24px;
}

.highlight-card {
  background: linear-gradient(135deg, rgba(79, 209, 197, 0.14), rgba(10, 34, 51, 0.08));
  border-left: 4px solid var(--accent-color);
  padding: 20px;
  border-radius: 12px;
}

.cta-banner {
  background: linear-gradient(135deg, rgba(10, 34, 51, 0.9), rgba(28, 75, 93, 0.9));
  color: #ffffff;
  text-align: center;
  padding: 36px 24px;
  border-radius: 18px;
  margin-top: 36px;
  box-shadow: var(--shadow-soft);
}

.cta-banner a {
  color: #ffffff;
  background-color: var(--accent-color);
  padding: 12px 28px;
  border-radius: 28px;
  display: inline-block;
  margin-top: 12px;
  text-decoration: none;
  font-weight: 600;
}

footer {
  background: #06131d;
  color: rgba(255, 255, 255, 0.88);
  padding: 32px 24px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 0;
  margin: 0;
}

.footer-nav a {
  color: #f1f8fb;
  text-decoration: none;
  font-size: 0.85rem;
  background-color: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 14px;
}

.footer-meta {
  font-size: 0.78rem;
  opacity: 0.75;
}

.table-wrapper {
  overflow-x: auto;
  margin-top: 20px;
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 680px;
}

thead {
  background: rgba(79, 209, 197, 0.2);
}

td,
th {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(10, 34, 51, 0.1);
  text-align: left;
}

blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--accent-color);
  background: rgba(79, 209, 197, 0.1);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(10, 34, 51, 0.9);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  main {
    padding: 32px 20px 56px;
  }
}

@media (max-width: 768px) {
  .nav-list {
    display: none;
    flex-direction: column;
    background: rgba(10, 34, 51, 0.98);
    padding: 16px;
    border-radius: 12px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  section,
  .hero {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01s !important;
    scroll-behavior: auto !important;
  }
}


.news-list li {
  margin-top: 10px;
  line-height: 1.6;
}

.news-list strong {
  display: block;
  font-weight: 600;
  color: var(--primary-color);
}

.footer-related {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.footer-related-title {
  font-size: 0.8rem;
  opacity: 0.75;
}

.footer-related-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0;
}

.footer-related-list a {
  color: #b9d8e6;
  text-decoration: none;
  font-size: 0.8rem;
  background-color: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 12px;
}

.footer-related-list a:hover,
.footer-related-list a:focus {
  background-color: rgba(255, 255, 255, 0.2);
}