:root{--ink:#172033;--muted:#5d687b;--panel:#fff;--bg:#f5f7fb;--brand:#1649d8;--brand2:#0f37a6;--line:#e4e8f0}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.7 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.wrap{max-width:900px;margin:auto;padding:28px 20px}.top{font-weight:800;color:var(--brand);text-decoration:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:clamp(24px,5vw,48px);box-shadow:0 12px 35px rgba(25,40,80,.06);margin:24px 0}
h1{font-size:clamp(32px,5vw,52px);line-height:1.1;letter-spacing:-.03em;margin:.2em 0 .5em}h2{line-height:1.25;margin-top:1.7em}
.lead{font-size:21px;color:#354157}.answer p{margin:1em 0}.cta-box{margin:34px 0 10px;padding:24px;border-radius:14px;background:#f0f4ff;border:1px solid #dbe5ff}
.cta{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:800;padding:15px 22px;border-radius:10px;margin-top:8px}.cta:hover{background:var(--brand2)}
.related{border-top:1px solid var(--line);margin-top:36px;padding-top:24px}.related a{color:var(--brand);text-decoration:none}.small{font-size:14px;color:var(--muted)}
.problem-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}.problem{display:block;text-decoration:none;border:2px solid #dfe5f2;background:white;border-radius:16px;padding:28px;color:var(--ink);font-size:25px;font-weight:800}.problem:hover{border-color:var(--brand)}
@media(max-width:650px){.problem-grid{grid-template-columns:1fr}}
.answer ul,.answer ol{padding-left:1.35em;margin:1em 0}.answer li{margin:.55em 0}.answer strong{color:#111a2d}.takeaway{margin:28px 0;padding:20px 22px;border-left:4px solid var(--brand);background:#f7f9ff;border-radius:0 12px 12px 0}.answer h2{font-size:clamp(23px,3vw,30px)}

.cta-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:stretch}.cta-row .cta{display:flex;align-items:center;justify-content:center;text-align:center;margin-top:8px}.cta-secondary{background:#fff;color:var(--brand);border:2px solid var(--brand)}.cta-secondary:hover{background:#eef3ff;color:var(--brand2)}
@media(max-width:650px){.cta-row{grid-template-columns:1fr}}