.guide-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:28px 0}.guide-card{padding:24px;border:1px solid #dce3f2;border-radius:20px;background:#fff}.guide-card h2{font-size:1.3rem;line-height:1.8;margin:0 0 12px}.guide-card p,.buying-guide p{line-height:2.1}.buying-guide{max-width:820px;margin:30px auto;overflow-wrap:anywhere}.buying-guide h1{font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.6}.buying-guide h2{font-size:1.4rem;line-height:1.8;margin-top:35px}.guide-answer,.guide-next{background:#f0f5ff;border-radius:20px;padding:24px}.guide-contents{border:1px solid #dce3f2;padding:20px 28px;border-radius:18px;margin:24px 0;line-height:2.2}.guide-contents a,.guide-related a{color:#254c8c;text-decoration:underline;text-underline-offset:5px}.guide-related{max-width:820px;margin:36px auto}.guide-related a{display:block;margin:15px 0;line-height:1.8}.guide-source{font-size:.9rem;color:#526078}.guide-next .button{white-space:normal}.watch-video{width:100%;max-height:70vh;border-radius:18px;background:#101828}.watch-layout{max-width:960px;margin:24px auto}.watch-layout p{line-height:2}.guide-banner{padding:24px;border:1px solid #dce3f2;border-radius:18px;margin:24px 0}.guide-banner a{display:inline-block;margin:8px 0}.buying-guide section{scroll-margin-top:110px}@media(max-width:640px){.guide-cards{grid-template-columns:1fr}.guide-card{padding:20px}.buying-guide{margin:20px auto}.guide-answer,.guide-next{padding:18px}.guide-contents{padding:18px}.watch-video{max-height:60vh}}