:root { color-scheme: light dark; --background: #FFF9F9; --text: #2B2B2B; --muted: #686064; --accent: #E8607E; --link: #AD3452; --border: #EEDDE2; }
* { box-sizing: border-box; }
html { font-size: 100%; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--background); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif; font-size: 1rem; line-height: 1.9; overflow-wrap: anywhere; }
body::before { content: ""; display: block; height: 4px; background: var(--accent); }
.container { max-width: 48rem; margin-inline: auto; padding: 3.5rem 1.5rem 2rem; }
header { padding-bottom: 2rem; border-bottom: 1px solid var(--border); margin-bottom: 2.5rem; }
h1 { margin: 0; font-size: clamp(1.5rem, 4.7vw, 2rem); font-weight: 700; line-height: 1.55; letter-spacing: .015em; }
.meta { margin: 0 0 1rem; font-size: .8125rem; line-height: 1.9; color: var(--muted); }
.subtitle { margin: .875rem 0 0; color: var(--muted); }
section + section { margin-top: 2.5rem; }
h2 { margin: 0 0 1rem; font-size: 1.125rem; line-height: 1.7; font-weight: 700; }
h3 { margin: 0 0 .625rem; font-size: 1rem; line-height: 1.9; font-weight: 700; }
p { margin: 0 0 1rem; }
section > :last-child, .question > :last-child { margin-bottom: 0; }
ul { padding-left: 1.4rem; margin: 1rem 0 0; }
li { padding-left: .2rem; margin: .5rem 0; }
li::marker { color: var(--accent); }
.question { margin-top: 1.75rem; }
.question + .question { border-top: 1px solid var(--border); padding-top: 1.75rem; }
a { color: var(--link); text-decoration: underline; text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
footer { margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border); }
footer nav { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
footer a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; }
@media (max-width: 480px) { .container { padding: 2rem 1.25rem 1.5rem; } header { margin-bottom: 2rem; padding-bottom: 1.5rem; } }
@media (prefers-color-scheme: dark) { :root { --background: #1C181A; --text: #F1E9EC; --muted: #BEB1B7; --accent: #E8607E; --link: #FF9DB4; --border: #47333B; } }