:root{font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#183d49;background:#f8fbf9}*{box-sizing:border-box}body{margin:0}.beta{background:#165b66;color:#fff;text-align:center;padding:7px 14px;font-size:12px;letter-spacing:.08em}header{padding:18px max(24px,5vw);display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border-bottom:1px solid #d6e5e5}header img{width:150px;max-height:65px;object-fit:contain}nav{display:flex;gap:20px;flex-wrap:wrap}a{color:#087f8d}nav a{text-decoration:none;color:#214754}main{max-width:1120px;margin:auto;padding:70px 24px 100px}.eyebrow{color:#078896;font-size:13px;letter-spacing:.18em;font-weight:700}h1{font-size:clamp(38px,5vw,65px);line-height:1.1;max-width:780px;margin:12px 0 20px}h2{font-size:30px;margin:58px 0 22px}.lead{font-size:19px;color:#506a72;max-width:680px;line-height:1.6}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr));gap:24px}.card,.detail-box,.register,.mine-card{background:#fff;border:1px solid #cedfdf;border-radius:24px;overflow:hidden}.card img{width:100%;height:250px;object-fit:cover}.card .copy{padding:24px}.card h3{font-size:23px;line-height:1.25;margin:8px 0}.card p{line-height:1.55;color:#536a70}.meta{color:#287783!important;font-size:14px;font-weight:700}.card a,.button,button{display:inline-block;background:#087d8b;color:white;border:0;border-radius:10px;padding:12px 20px;text-decoration:none;font:inherit;font-weight:650;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}.detail-box{display:grid;grid-template-columns:minmax(220px,40%) 1fr;margin-top:24px}.detail-box img{width:100%;height:100%;min-height:360px;object-fit:cover}.detail-copy{padding:36px}.detail-copy h2{margin:10px 0 20px}.detail-copy p{line-height:1.65;white-space:pre-line}.register{padding:30px;margin-top:22px}.register p{line-height:1.6}.notice{padding:14px;border-radius:9px;background:#e9f4f1;margin:16px 0}.error{color:#a73246}.success{color:#137257}.mine-card{padding:18px;margin:10px 0}.back{display:inline-block;margin-top:24px}footer{padding:28px;text-align:center;border-top:1px solid #d6e5e5;color:#58717a}a:focus-visible,button:focus-visible{outline:3px solid #008c9c;outline-offset:3px}@media(max-width:690px){header{align-items:flex-start;flex-direction:column}main{padding-top:48px}.detail-box{display:block}.detail-box img{max-height:390px}.detail-copy{padding:24px}}

.detail-box:not(:has(img)){grid-template-columns:1fr}