:root { color-scheme: light; --ink: #111313; --muted: #58605a; --line: rgba(17,19,19,.13); --paper: #fbfcfb; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: radial-gradient(circle at 7% 0, #dff3ad88, transparent 27rem), radial-gradient(circle at 94% 4%, #a9e2d777, transparent 30rem), #e7e3ed; font: 16px/1.7 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: #254b3a; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { color: #142c20; }
a:focus-visible { outline: 2px solid #254b3a; outline-offset: 3px; }
.shell { width: min(100% - 32px, 900px); margin-inline: auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: 20px; font-weight: 760; }
.brand img { width: 34px; height: 34px; border-radius: 10px; }
.toplinks { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; }
.toplinks a { color: var(--muted); }
main { background: var(--paper); border: 1px solid #ffffffdd; border-radius: 28px; box-shadow: 0 24px 80px #23202d20; padding: clamp(24px, 6vw, 64px); margin-block: 14px 40px; }
.eyebrow { margin: 0 0 8px; color: #4b6556; font-size: 13px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(32px, 5vw, 52px); line-height: 1.18; letter-spacing: -.04em; overflow-wrap: anywhere; }
html[lang="ja"] h1 { font-size: clamp(28px, 4.5vw, 48px); }
.intro { max-width: 680px; color: var(--muted); font-size: 18px; }
.meta { color: var(--muted); font-size: 13px; }
.language-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 38px; }
.language-links a { padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: 14px; }
.language-links a[aria-current="true"] { background: #edf5df; border-color: #6b8b50; }
.legal-copy { scroll-margin-top: 20px; }
.legal-copy h2 { margin: 34px 0 8px; font-size: 22px; line-height: 1.35; }
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy p, .legal-copy li { color: #39413c; }
.legal-copy p { margin: 10px 0 14px; }
.legal-copy ul { padding-left: 24px; }
.notice { padding: 15px 18px; border-left: 4px solid #6b8b50; border-radius: 8px; background: #edf5df; }
footer { padding-bottom: 30px; color: var(--muted); font-size: 13px; }
footer .shell { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 20px; }
@media (max-width: 600px) { .topbar { align-items: flex-start; } .toplinks { justify-content: flex-end; gap: 8px 14px; } main { border-radius: 20px; } }