:root { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #17304e; background: #f3f7fc; line-height: 1.7; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 840px; margin: 48px auto; padding: 40px; background: white; border-top: 4px solid #2463eb; border-radius: 8px; }
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -.03em; margin: 12px 0 20px; color: #102b50; }
h2, h3 { line-height: 1.3; color: #102b50; margin-top: 1.8em; }
a { color: #1659cf; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #2463eb; outline-offset: 3px; }
p, li { overflow-wrap: anywhere; }
li + li { margin-top: .4em; }
.brand { color: #1659cf; font-weight: 750; margin: 0; }
.byline, figcaption { color: #52657e; font-size: .9rem; }
header { border-bottom: 1px solid #dce5f0; margin-bottom: 28px; padding-bottom: 16px; }
figure { margin: 24px 0; }
img { max-width: 100%; height: auto; border-radius: 6px; }
@media (max-width: 600px) { main { margin: 0; padding: 28px 20px; border-radius: 0; } }

.article-list { list-style: none; padding: 0; }
.article-list li { padding: 20px 0; border-bottom: 1px solid #dce5f0; }
.article-list h2 { margin: 0 0 6px; font-size: 1.4rem; }
footer { margin-top: 32px; border-top: 1px solid #dce5f0; padding-top: 20px; }