:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif; background: #f2f2f7; color: #1c1b19; }
* { box-sizing: border-box; }
body { margin: 0; padding: 32px 16px 64px; }
main { max-width: 760px; margin: 0 auto; }
header { text-align: center; padding: 28px 12px 24px; }
.mark { display: inline-flex; align-items: flex-end; justify-content: center; gap: 0; width: 76px; height: 76px; border-radius: 20px; background: #2b4c9b; position: relative; }
.page { position: absolute; width: 30px; height: 40px; border-radius: 4px; top: 16px; }
.page.rigid { left: 14px; background: #d5ddee; transform: rotate(-9deg); }
.page.book { left: 30px; top: 20px; background: #fbf7ef; }
.page.book::after { content: ""; position: absolute; right: 5px; top: -2px; width: 6px; height: 12px; background: #e0a21a; }
.check { position: absolute; right: 8px; bottom: 8px; width: 22px; height: 22px; border-radius: 50%; background: #2e7d4f; }
h1 { margin: 14px 0 4px; font-family: "New York", ui-serif, Georgia, serif; font-size: clamp(2rem, 7vw, 3rem); letter-spacing: -0.02em; }
header p { margin: 0; color: #6b6760; }
section { background: #fff; border-radius: 22px; padding: 26px 28px; margin: 16px 0; box-shadow: 0 8px 30px rgba(43, 76, 155, .08); }
h2 { margin: 0 0 12px; font-size: 1.4rem; }
p, li { font-size: 1rem; line-height: 1.62; }
.lead { color: #2b4c9b; font-weight: 650; }
a { color: #2b4c9b; }
footer { color: #76726b; text-align: center; padding: 18px 0; font-size: .9rem; }
@media (max-width: 520px) { section { padding: 22px 20px; } body { padding-top: 12px; } }