* { box-sizing: border-box; }
body { margin: 0; background: #f4f5f7; color: #17191d; font: 17px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: #163d78; text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid #ad7400; outline-offset: 4px; }
header, main, footer { max-width: 920px; margin: auto; padding: 24px; }
header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; align-items: center; }
.brand { font-size: 24px; font-weight: 800; color: #17191d; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 10px 20px; }
main { background: #fff; border: 1px solid #dfe2e7; border-radius: 12px; padding: 32px 44px; }
h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.15; margin: 0 0 14px; }
h2 { font-size: 23px; line-height: 1.3; margin-top: 36px; scroll-margin-top: 24px; }
h3 { font-size: 19px; }
p, li { overflow-wrap: anywhere; }
li + li { margin-top: 8px; }
.notice { padding: 16px 20px; border-left: 4px solid #bd8b00; background: #fff5cf; }
.meta { color: #444b55; }
.toc { padding: 16px 20px; background: #f4f5f7; border-radius: 8px; }
.toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 40px; width: 100%; margin: 0; padding-left: 22px; }
.toc li { min-width: 0; margin: 0; }
footer { font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { border: 1px solid #dfe2e7; padding: 12px; text-align: left; vertical-align: top; overflow-wrap: anywhere; }
@media (max-width: 600px) { header, main, footer { padding: 20px; } main { border-radius: 0; } .toc ol { grid-template-columns: minmax(0, 1fr); } table { font-size: 14px; } th, td { padding: 8px; } }
@media print { body, main { background: white; } header, footer, .toc { display: none; } main { border: 0; padding: 0; } h2 { break-after: avoid; } }