:root {
  --bg: #f4f1ee;
  --surface: #ffffff;
  --line: #e2d9d2;
  --text: #231815;
  --muted: #6f6258;
  --accent: #2f8d4f;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow: 0 10px 24px rgba(35, 24, 21, 0.08);
  --container: min(92vw, 980px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.03em;
}

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

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

.sub-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 241, 238, 0.95);
  backdrop-filter: blur(8px);
}

.sub-header .container {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.brand {
  font-weight: 700;
  font-size: 0.95rem;
}

.header-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.header-links a,
.btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  min-height: 40px;
  padding: 8px 14px;
  display: inline-grid;
  place-items: center;
  font-size: 0.84rem;
  font-weight: 700;
}

.btn-primary {
  background: #231815;
  border-color: #231815;
  color: #fff;
}

.btn-line {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

main {
  padding: 28px 0 48px;
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(18px, 4.5vw, 28px);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 6px 0 8px;
  font-size: clamp(1.4rem, 4.5vw, 2rem);
  line-height: 1.4;
}

.lead {
  margin: 0;
  font-size: clamp(0.95rem, 3.4vw, 1.02rem);
}

.grid {
  margin-top: 16px;
  display: grid;
  gap: 12px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 14px;
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.panel p,
.panel li {
  margin: 0;
  font-size: 0.92rem;
}

.compliance-panel {
  border-color: #d2c3b9;
  background: #fffcf9;
}

.compliance-panel h2 {
  color: #6f4d38;
}

.compliance-note {
  margin-top: 10px !important;
  color: #8c4b2c;
  font-weight: 700;
}

.panel ul,
.panel ol {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.link-grid {
  display: grid;
  gap: 10px;
}

.link-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 14px;
  font-weight: 700;
  display: block;
}

.article-meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-cta {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 760px) {
  .grid.two {
    grid-template-columns: 1fr 1fr;
  }

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