:root { --ink: #1f2e28; --sub: #6f8178; --koi: #c9412a; --paper: #f8f5ec; --line: #e3ddcc; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.7 -apple-system, "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 26px; margin: 0 0 4px; } h2 { font-size: 19px; margin: 32px 0 8px; } h3 { font-size: 16px; margin: 20px 0 4px; }
nav { display: flex; gap: 12px; margin: 8px 0 24px; flex-wrap: wrap; } nav a, a { color: var(--koi); }
.sub { color: var(--sub); font-size: 14px; } section { border-top: 1px solid var(--line); padding-top: 8px; }
table { border-collapse: collapse; width: 100%; } td, th { border-bottom: 1px solid var(--line); padding: 8px 6px; vertical-align: top; text-align: left; }
th { width: 34%; font-weight: 600; }