:root { --ink:#16161a; --muted:#5d5d68; --accent:#d9772b; --line:#e6e4e0; --soft:#fbf3ec; }
* { box-sizing: border-box; }
body { margin: 0; padding: 40px 20px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
       line-height: 1.65; color: var(--ink); background: #f7f6f4; }
.wrap { max-width: 740px; margin: 0 auto; background: #fff; padding: 48px 44px; border-radius: 16px;
        box-shadow: 0 1px 3px rgba(0,0,0,.06); }
nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: .92rem; margin-bottom: 30px; }
nav a { text-decoration: none; }
nav a.on { font-weight: 600; color: var(--ink); }
h1 { font-size: 1.9rem; margin: 0 0 6px; letter-spacing: -.02em; }
.date { color: var(--muted); font-size: .9rem; margin-bottom: 32px; }
h2 { font-size: 1.12rem; margin: 32px 0 10px; color: var(--accent); }
h3 { font-size: 1rem; margin: 22px 0 6px; }
p, li { color: #2d2d36; }
ul { padding-left: 22px; } li { margin-bottom: 7px; }
.box { background: var(--soft); border-left: 3px solid var(--accent); padding: 16px 20px; border-radius: 8px; margin: 22px 0; }
a { color: var(--accent); }
footer { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; }
.en { margin-top: 60px; padding-top: 40px; border-top: 2px solid var(--line); }
@media (max-width: 560px) { .wrap { padding: 32px 22px; } }