*{box-sizing:border-box}body{margin:0;font:16px/1.8 system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:#21364c;background:#f4f8fc}a{color:#075c99}a:focus-visible{outline:3px solid #298bd2;outline-offset:3px}.wrap{max-width:940px;margin:auto;padding:0 22px}.top{background:#092a49;color:#fff}.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}.top a{color:#e9f5ff;text-decoration:none}.top nav{display:flex;gap:17px;flex-wrap:wrap}.hero{background:linear-gradient(120deg,#0b3155,#126599);color:#fff;padding:44px 0}.hero h1{font-size:clamp(1.9rem,4vw,2.65rem);line-height:1.25;margin:0 0 12px}.hero p{max-width:740px}.content{background:#fff;border:1px solid #e1e9f1;border-radius:16px;margin:26px auto;padding:34px 42px;box-shadow:0 6px 24px #0a27420b}.content h2{color:#104f83;line-height:1.35;margin:32px 0 10px}.content p,.content li{max-width:780px}.content ul{padding-left:26px}.note{padding:17px 20px;background:#edf7ff;border-left:4px solid #287ab2;border-radius:8px}.toc{background:#f3f8fc;border-radius:10px;padding:15px 20px}.footer{border-top:1px solid #dce6ee;padding:25px 0;color:#496176}.footer .wrap{display:flex;flex-wrap:wrap;gap:15px;justify-content:space-between}.footer a{margin-right:14px}@media(max-width:650px){.content{padding:22px 20px;margin:16px 12px}.hero{padding:34px 0}}
/* Additional guide information and accessible reading width */
.guide-extra{margin:2rem 0;padding:1.25rem 1.5rem;border:1px solid #e4e8ef;border-radius:12px;background:#fafbfd;line-height:1.8}
.guide-extra h2{margin-top:1.4rem}.guide-extra h2:first-child{margin-top:0}.guide-extra li{margin:.5rem 0}
@media(max-width:600px){.guide-extra{padding:1rem}}