:root {
  --bg: #f5f8fa;
  --panel: #fff;
  --ink: #1f2a33;
  --sub: #5a6b76;
  --line: #d5e0e6;
  --accent: #1a6b8a;
  --accent-hi: #12809a;
  --band: #e8f2f5;
  --font: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --header-h: 64px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
  position: sticky;
  top: var(--sg-back-h, 40px);
  z-index: 100;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 800;
}
.site-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.site-nav a { color: var(--ink); font-weight: 600; font-size: 14px; text-decoration: none; }
.site-nav a:hover, .site-nav a.is-active { color: var(--accent); }
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px; margin: 4px auto;
  background: var(--ink);
}
.hero {
  position: relative;
  color: #fff;
  background: #1a6b8a center/cover no-repeat;
  min-height: 360px;
  display: flex; align-items: flex-end;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(10,40,55,.78) 0%, rgba(10,40,55,.55) 48%, rgba(10,40,55,.35) 100%);
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: 1080px; width: 100%;
  margin: 0 auto; padding: 48px 20px 40px;
}
.hero .eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; opacity: .9;
}
.hero h1 { margin: 10px 0 0; font-size: clamp(26px, 4vw, 40px); line-height: 1.3; }
.hero p { margin: 14px 0 0; max-width: 36em; font-size: 15px; line-height: 1.85; opacity: .95; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 48px 20px; }
.section-head { margin-bottom: 22px; }
.section-head h2 { margin: 0; font-size: clamp(20px, 2.5vw, 26px); }
.section-head p { margin: 8px 0 0; color: var(--sub); font-size: 15px; }
.grid-2 { display: grid; gap: 20px; grid-template-columns: 1.4fr .9fr; }
@media (max-width: 860px) {
  .grid-2 { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none; width: 100%;
    flex-direction: column; align-items: flex-start;
    padding-bottom: 14px;
  }
  .site-nav.is-open { display: flex; }
  .header-inner { flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.news-list time { color: var(--sub); font-size: 13px; font-variant-numeric: tabular-nums; }
.news-list a { color: var(--ink); font-weight: 700; text-decoration: none; }
.news-list a:hover { color: var(--accent); text-decoration: underline; }
.badge {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--band);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}
.side-box h3 { margin: 0 0 10px; font-size: 16px; }
.side-box p, .side-box li { color: var(--sub); font-size: 14px; }
.side-box ul { margin: 0; padding-left: 1.2em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 18px; border-radius: 8px;
  font-weight: 700; font-size: 14px; text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hi); text-decoration: none; }
.btn-ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }
.btn-ghost:hover { background: var(--band); text-decoration: none; }
.article { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.article h1 { margin: 8px 0 16px; font-size: clamp(22px, 3vw, 30px); line-height: 1.35; }
.article .meta { color: var(--sub); font-size: 13px; }
.article p { margin: 0 0 1em; color: #33414a; }
.site-footer {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  background: #12384a;
  color: #d7e8ef;
  padding: 36px 20px;
}
.footer-inner { max-width: 1080px; margin: 0 auto; display: grid; gap: 8px; }
.site-footer a { color: #fff; }
.site-footer .note { font-size: 12px; opacity: .8; margin-top: 12px; }
.wp-callout {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--accent);
  background: var(--band);
  border-radius: 0 10px 10px 0;
  font-size: 14px;
  color: var(--sub);
}