:root{--ink:#163d50;--sea:#147b82;--soft:#effaf6;--line:#d6e9e6}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;color:var(--ink);background:#f5f9f8;line-height:1.8}a{color:#0e707c}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #159b94;outline-offset:3px}.guide-wrap{max-width:1160px;width:calc(100% - 36px);margin:auto}.guide-header{background:#fff;border-bottom:1px solid #dce9e7;position:sticky;top:0;z-index:5}.guide-header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:15px}.guide-logo{display:flex;align-items:center;gap:9px;color:#154252;font-weight:900;text-decoration:none;font-size:19px}.guide-logo img{width:38px;height:38px}.guide-nav{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;font-weight:750}.guide-nav a{text-decoration:none;color:#406875}.guide-nav a[aria-current="page"]{color:var(--sea)}.guide-hero{padding:57px 0 28px}.eyebrow{font-size:12px;color:#139789;font-weight:900;letter-spacing:.08em}.guide-hero h1{font-size:clamp(29px,5vw,43px);margin:8px 0 12px;letter-spacing:-.05em;line-height:1.35}.guide-lead{max-width:850px;font-size:15px;color:#56727a}.guide-pills{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}.guide-pills span{border-radius:30px;background:#e1f3ee;padding:5px 12px;color:#176d67;font-size:12px;font-weight:750}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0 45px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:0 6px 20px #1458550a}.guide-card h2{font-size:23px;letter-spacing:-.04em;margin:3px 0 9px}.guide-card h3{font-size:16px;margin:22px 0 6px}.guide-card p{font-size:13px;color:#58727b}.guide-card .badge{display:inline-block;border-radius:50px;padding:4px 12px;font-size:11px;background:#e5f6f1;color:#137c70;font-weight:850}.guide-card .badge.orange{background:#fff0dc;color:#9d6324}.guide-card .badge.purple{background:#efe8ff;color:#6949a7}.guide-card .badge.blue{background:#e0f0fc;color:#276f9f}.guide-card .badge.yellow{background:#fff4d5;color:#916b0e}.guide-card ul,.guide-card ol{padding-left:21px;font-size:13px;color:#476773}.guide-card li{margin:7px 0}.guide-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.guide-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:10px 16px;border-radius:11px;background:#146b79;color:#fff;font-size:13px;font-weight:850}.guide-btn.alt{background:#f1faf8;border:1px solid #b6dcd5;color:#176f73}.guide-note{font-size:12px;color:#56717c;background:#edf8f6;border:1px solid #c8e9e1;padding:15px 18px;border-radius:13px;margin:25px 0 48px}.guide-wide{grid-column:1/-1}.guide-footer{margin-top:50px;border-top:1px solid #dce9e6;padding:25px 0 36px;color:#657f86;font-size:12px}.guide-footer .links{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}.guide-step{border-top:1px solid #e4efed;margin:16px 0;padding-top:14px}.guide-step strong{color:#174e5b}.guide-table{width:100%;border-collapse:collapse;font-size:13px}.guide-table th,.guide-table td{padding:11px 9px;text-align:left;border-bottom:1px solid #e2eeea}.guide-table th{background:#f0f7f5}code{background:#ecf5f2;padding:2px 5px;border-radius:5px}details.guide-faq{border:1px solid #dbeae6;border-radius:12px;padding:12px 15px;margin:10px 0;background:#fff}details.guide-faq summary{cursor:pointer;font-weight:800}
@media(max-width:680px){.guide-wrap{width:calc(100% - 28px)}.guide-header-inner{align-items:flex-start;flex-direction:column;padding:13px 0}.guide-nav{gap:9px;font-size:12px}.guide-hero{padding:32px 0 12px}.guide-grid{grid-template-columns:1fr;gap:13px}.guide-card{padding:19px}.guide-card h2{font-size:20px}.guide-wide{grid-column:auto}.guide-table{font-size:12px}}