* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; max-width: 720px; margin: 0 auto; padding: 24px 20px 60px; line-height: 1.6; color: #1a1a2e; background: #fff; }
h1 { font-size: 28px; font-weight: 700; margin-top: 32px; }
h2 { font-size: 20px; font-weight: 600; margin-top: 28px; }
p, li { font-size: 15px; color: #444; }
hr { border: none; border-top: 1px solid #e0e0e0; margin: 32px 0; }
a { color: #1a56db; text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 24px; }
li { margin-bottom: 6px; }
.badge { display: inline-block; background: #e8f0fe; color: #1a56db; font-size: 13px; font-weight: 600; padding: 4px 12px; border-radius: 12px; }
.updated { font-size: 13px; color: #888; }
.lang-switch { text-align: right; font-size: 14px; margin-bottom: 8px; }
.hero { text-align: center; padding: 60px 0 40px; }
.hero h1 { margin-top: 0; font-size: 32px; }
.hero p { font-size: 17px; color: #666; max-width: 480px; margin: 12px auto; }
.cards { display: flex; gap: 16px; margin: 32px 0; }
.card { flex: 1; padding: 20px; border-radius: 12px; border: 1px solid #e0e0e0; }
.card h2 { margin-top: 0; font-size: 17px; }
.card p { font-size: 14px; }
.card .badge { margin-bottom: 8px; }
@media (max-width: 600px) { .cards { flex-direction: column; } }