:root {
  --ink: #17324d;
  --support: #315f52;
  --accent: #b65f2f;
  --paper: #f5f2ea;
  --panel: #fffdf8;
  --line: #d9d4c8;
  --muted: #5c6670;
  --soft: #e8eee9;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
a { color: var(--ink); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
h1, h2, h3 { line-height: 1.35; letter-spacing: 0.01em; }
h1 { max-width: 16ch; margin: 0; font-size: clamp(2.1rem, 8vw, 4.4rem); }
h2 { margin: 0 0 1rem; font-size: clamp(1.55rem, 4vw, 2.2rem); }
h3 { margin: 0 0 0.55rem; font-size: 1.08rem; }
p { margin: 0.7rem 0 0; }
.shell { width: min(1080px, calc(100% - 2rem)); margin: 0 auto; }
header.site { background: var(--panel); border-bottom: 1px solid var(--line); }
header.site .shell { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1rem 0; }
.brand { font-weight: 750; letter-spacing: 0.02em; }
nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0; padding: 0; list-style: none; font-size: 0.9rem; }
main.shell { padding: 0 0 4rem; }
.hero { padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5rem); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr); align-items: center; gap: clamp(2rem, 5vw, 4.5rem); }
.hero-visual, .section-visual { margin: 0; }
.hero-visual figcaption, .section-visual figcaption { margin-top: 0.65rem; color: var(--muted); font-size: 0.78rem; line-height: 1.5; }
.hero-image, .section-image { display: block; width: 100%; height: auto; border-radius: 14px; }
.hero-image { aspect-ratio: 4 / 3; object-fit: cover; box-shadow: 0 20px 50px rgba(23, 50, 77, 0.14); }
.section-image { aspect-ratio: 3 / 2; object-fit: cover; border: 1px solid var(--line); }
.visual-split { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); align-items: center; gap: clamp(2rem, 5vw, 4rem); }
.eyebrow { margin: 0 0 1rem; color: var(--support); font-weight: 750; letter-spacing: 0.08em; }
.lead { max-width: 700px; margin-top: 1.5rem; font-size: clamp(1.08rem, 2.5vw, 1.35rem); }
.hero-note { max-width: 700px; margin-top: 1.5rem; padding-left: 1rem; border-left: 4px solid var(--accent); font-weight: 650; }
.panel { padding: clamp(3rem, 7vw, 5rem) 0; border-bottom: 1px solid var(--line); }
.panel > p, .panel > ul, .panel > ol { max-width: 760px; }
.plain { padding-left: 1.25rem; }
.plain li + li { margin-top: 0.55rem; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem; }
.card { min-height: 100%; padding: 1.35rem; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
.card p { color: var(--muted); }
.card .meta { margin-top: 1rem; color: var(--support); font-size: 0.9rem; font-weight: 700; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; counter-reset: step; margin-top: 1.5rem; }
.step { padding: 1.35rem; border-top: 4px solid var(--support); background: var(--panel); }
.step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 1rem; color: var(--accent); font-weight: 800; }
.note { padding: 1.5rem; background: var(--soft); border-left: 4px solid var(--support); }
.contact-status { margin-top: 1.5rem; padding: 1.25rem; background: #eee9df; border: 1px solid var(--line); border-radius: 8px; }
a.cta { display: inline-block; padding: 0.9rem 1.3rem; color: #fff; background: var(--accent); border-radius: 6px; font-weight: 750; text-decoration: none; }
.cta-note, .footnote, .empty { color: var(--muted); font-size: 0.9rem; }
.table-scroll { overflow-x: auto; margin-top: 1rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 0.7rem; border: 1px solid var(--line); text-align: left; vertical-align: top; }
footer.site { background: var(--ink); color: #eef2f3; }
footer.site .shell { padding: 2rem 0; font-size: 0.88rem; }
footer.site a { color: #fff; }
@media (max-width: 760px) {
  header.site .shell { align-items: flex-start; flex-direction: column; }
  .cards, .steps { grid-template-columns: 1fr; }
  .hero-grid, .visual-split { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .card, .step { padding: 1.1rem; }
}
@media (max-width: 640px) {
  .shell { width: min(100% - 1.25rem, 1080px); }
  nav ul { gap: 0.4rem 0.9rem; }
  .hero { padding-top: 3rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}