body { font-family: system-ui, sans-serif; max-width: 720px; margin: 40px auto; padding: 0 20px; color: #1a1a1a; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; margin-top: 2rem; }
code, pre { background: #f4f4f4; border-radius: 4px; }
pre { padding: 12px; overflow-x: auto; font-size: 0.85rem; }
#banner-container { border: 1px solid #ddd; border-radius: 8px; padding: 20px; margin: 20px 0; text-align: center; }
#banner-container img { max-width: 100%; border-radius: 4px; }
#banner-container a { display: inline-block; line-height: 0; }
#debug { font-size: 0.8rem; color: #555; white-space: pre-wrap; background: #fafafa; border: 1px dashed #ccc; padding: 10px; border-radius: 6px; }
.rule { font-size: 0.8rem; color: #888; }