@charset "UTF-8";
:root{--navy:#16324a;--blue:#6f8fa9;--pale:#dce7ed;--ivory:#fbf8f1;--paper:#fffdfa;--ink:#24333f;--muted:#5e6c76;--line:#d6dde0;--accent:#b88452;--shadow:0 12px 34px rgba(22,50,74,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--ivory);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:17px;line-height:1.8}a{color:var(--navy)}a:focus-visible,button:focus-visible{outline:3px solid #b35f00;outline-offset:4px;border-radius:3px}img{max-width:100%;height:auto}.site-header{background:rgba(251,248,241,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.header-inner{max-width:1120px;margin:auto;padding:15px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative}.brand{text-decoration:none;font-family:Georgia,"Yu 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var(--line)}table{border-collapse:collapse;width:100%;min-width:720px}th,td{text-align:left;vertical-align:top;padding:16px;border-bottom:1px solid var(--line)}thead{background:var(--navy);color:#fff}.steps li{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.steps>li>span{display:grid;place-items:center;background:var(--navy);color:#fff;border-radius:50%;width:36px;height:36px;flex:none}.steps h2{font-size:1.15rem;margin:0}.steps p{margin:.2em 0}.worksheet{background:var(--paper);border:1px solid var(--line);padding:28px 38px}.worksheet li,.plain li{margin:8px 0}.contact-mail{font-size:1.25rem;font-weight:700;color:var(--navy)}.sources{padding-left:1.2em}.sources li{margin:12px 0}.page-nav{background:#edf1f2;padding:30px 24px}.page-nav-inner{max-width:1120px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:8px 25px}.page-nav a{text-decoration:none;font-size:.92rem}.site-footer{background:var(--navy);color:#dce7ed;padding:28px 24px;font-size:.85rem}.footer-inner{max-width:1120px;margin:auto;display:flex;justify-content:space-between;gap:20px}.site-footer a{color:#fff}.breadcrumbs{font-size:.8rem;color:var(--muted);margin-bottom:25px}@media(max-width:800px){body{font-size:16px}.header-inner{padding:12px 18px}.menu-btn{display:block}.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);padding:18px;flex-direction:column;border:1px solid var(--line);box-shadow:var(--shadow)}.nav.open{display:flex}main{padding:34px 18px 60px}.hero{grid-template-columns:1fr;gap:24px;margin:0 0 48px}.hero div{order:1}.hero figure{order:2}.hero img{max-height:250px}.grid.four,.grid.two,.compare,.tiles{grid-template-columns:1fr}.band{padding:24px}.check li{grid-template-columns:1fr}.page-nav-inner{grid-template-columns:1fr 1fr}.footer-inner{display:block}}@media(max-width:440px){.page-nav-inner{grid-template-columns:1fr}.hero h1{font-size:2rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.hero figcaption.ad-disclosure{font-size:10px;line-height:1.6}.brand{display:inline-flex;align-items:center;gap:.4em}.brand .header-mark{display:block;height:1.35em;width:auto;flex-shrink:0}.site-tagline{max-width:1120px;margin:-6px auto 0;padding:0 24px 10px;font-size:13px;line-height:1.6;color:var(--muted)}@media(max-width:800px){.site-tagline{padding:0 18px 8px;margin-top:-4px}}.content-figure{max-width:760px;margin:24px 0 48px}.content-figure img{display:block;width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:3px 34px 3px 3px;box-shadow:var(--shadow)}main>.band{max-width:760px}@media(max-width:800px){.brand{font-size:clamp(1.05rem,2vw,1.45rem);line-height:1.35;max-width:calc(100% - 92px)}.header-inner{gap:10px}.menu-btn{flex:none}}@media (max-width:760px){.menu-btn{white-space:nowrap;flex-shrink:0}}@media (max-width:400px){.brand{font-size:17px}}