:root{--accent:#c93578;--violet:#6250a7;--navy:#171c2b;--ink:#292b33;--muted:#666b76;--paper:#fff;--soft:#f4f5f7;--line:#dfe1e6;--serif:"Yu Mincho","Hiragino Mincho ProN","Noto Serif JP",serif;--sans:"Noto Sans JP","Yu Gothic",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.9;background:var(--paper)}a{color:inherit}.wrap{width:min(1080px,calc(100% - 48px));margin:auto}header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{position:relative;padding-right:132px;text-decoration:none;font-size:20px;font-weight:900;line-height:1}.brand i{font-style:normal;color:var(--accent);font-size:28px;letter-spacing:-.14em;margin-right:9px}.brand sup{color:var(--violet)}.brand:after{content:"LIVE JOURNAL";position:absolute;left:150px;top:50%;transform:translateY(-42%);padding-left:16px;border-left:1px solid #b9bcc4;color:#4f5360;font:700 11px/1.3 Arial,sans-serif;letter-spacing:.14em;white-space:nowrap}.navlinks{display:flex;gap:22px;align-items:center;font-size:13px;font-weight:700}.navlinks a{text-decoration:none}.navlinks a:hover{color:var(--accent)}.navlinks .cta,.cta{padding:10px 18px;border:1px solid var(--navy);border-radius:3px;color:#fff;background:var(--navy);font-weight:800;text-decoration:none}.hero{padding:62px 0 46px;background:#f7f7f8;border-bottom:1px solid var(--line)}.crumb{font-size:12px;color:#777c86;margin-bottom:30px}.crumb a{color:#555b68;text-underline-offset:3px}.label{font:800 12px/1.4 Arial,var(--sans);letter-spacing:.18em;color:var(--accent)}.hero h1{max-width:860px;font-family:var(--serif);font-size:clamp(34px,4.7vw,54px);font-weight:700;line-height:1.45;letter-spacing:.01em;margin:14px 0 20px;text-wrap:balance}.lead{max-width:780px;font-size:17px;line-height:1.95;color:var(--muted)}.meta{margin-top:22px;font-size:12px;color:#858a94}.content{display:grid;grid-template-columns:minmax(0,700px) 250px;gap:64px;padding:70px 0 100px}.article{min-width:0}.article h2{font-family:var(--serif);font-size:28px;line-height:1.6;font-weight:700;margin:64px 0 22px;padding:0 0 12px;border-bottom:1px solid #b9bdc6}.article h2:first-child{margin-top:0}.article h3{font-size:19px;line-height:1.65;margin:34px 0 11px;padding-left:14px;border-left:3px solid var(--accent)}.article p,.article li{color:#444852}.article p{margin:0 0 1.35em}.article ul,.article ol{margin:18px 0 28px;padding-left:1.5em}.article li{margin:9px 0}.callout{margin:34px 0;padding:26px 28px;border-top:2px solid var(--navy);border-bottom:1px solid var(--line);background:#f7f7f8}.callout strong{display:block;font-family:var(--serif);font-size:21px;margin-bottom:5px}.callout p:last-child{margin-bottom:0}.note{margin-top:38px!important;padding:16px 0;border-top:1px solid var(--line);font-size:12px;color:#777c86!important}.toc{position:sticky;top:102px;align-self:start;padding:23px 0;border-top:2px solid var(--navy);border-bottom:1px solid var(--line)}.toc b{display:block;margin-bottom:12px;font-size:13px;letter-spacing:.08em}.toc a{display:block;padding:7px 2px;color:#646974;font-size:13px;text-underline-offset:3px}.toc a:hover{color:var(--accent)}.entry{padding:58px 0;background:var(--navy);color:#fff;text-align:center}.entry-box{max-width:740px;margin:auto}.entry .label{color:#ec78aa}.entry h2{font-family:var(--serif);font-size:clamp(28px,3.8vw,40px);line-height:1.55;margin:10px 0}.entry p{color:#c9ccd4}.line{display:inline-flex;margin-top:12px;padding:14px 26px;border-radius:3px;background:#06c755;color:#fff;text-decoration:none;font-weight:900}.related{padding:66px 0;background:#f4f5f7}.related h2{font-family:var(--serif);font-size:27px}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#d9dce2;border:1px solid #d9dce2}.card{display:block;padding:25px;background:#fff;text-decoration:none}.card:hover{background:#fafafa}.card small{color:var(--accent);font-size:11px;font-weight:900;letter-spacing:.12em}.card b{display:block;margin:7px 0;font-family:var(--serif);line-height:1.65}.card span{color:var(--violet);font-size:12px;font-weight:900}footer{padding:30px 0;background:#111521;color:#aeb2bd;font-size:11px}.footer{display:flex;justify-content:space-between;gap:20px}.footer b{color:#fff;font-size:17px}.footer a{text-underline-offset:3px}
.hubhero{padding:80px 0 64px;text-align:left;background:var(--navy);color:#fff;position:relative;overflow:hidden}.hubhero:before{content:"M";position:absolute;right:6vw;top:55px;color:rgba(255,255,255,.035);font:900 220px/1 Arial}.hubhero h1{max-width:760px;margin-inline:0}.hubhero .lead{margin-inline:0;color:#c9ccd4}.group{padding:76px 0}.group.alt{background:#f4f5f7;border-top:1px solid var(--line)}.group h2{font-family:var(--serif);font-size:33px;margin:8px 0 30px}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#d9dce2;border:1px solid #d9dce2}.guidecard{display:block;min-height:220px;padding:30px;background:#fff;text-decoration:none;transition:background .15s ease}.guidecard:hover{background:#fafafa}.guidecard small{color:var(--accent);font-size:11px;font-weight:900;letter-spacing:.14em}.guidecard h3{font-family:var(--serif);font-size:21px;line-height:1.65;margin:12px 0}.guidecard p{font-size:14px;color:var(--muted);margin:0}.guidecard span{display:block;margin-top:16px;color:var(--violet);font-size:12px;font-weight:900}.group:first-of-type .guidecard:first-child{grid-column:span 2;min-height:250px;padding-right:38%}.group:first-of-type .guidecard:first-child h3{font-size:27px}
html:has(link[rel="canonical"][href*="case-"]) .hero{background:var(--navy);color:#fff;border-bottom:4px solid var(--accent)}html:has(link[rel="canonical"][href*="case-"]) .hero .crumb,html:has(link[rel="canonical"][href*="case-"]) .hero .lead,html:has(link[rel="canonical"][href*="case-"]) .hero .meta{color:#c9ccd4}html:has(link[rel="canonical"][href*="case-"]) .hero .crumb a{color:#fff}html:has(link[rel="canonical"][href*="case-"]) .article .callout{padding:32px;border:0;border-left:5px solid var(--accent);background:#f1f2f4}html:has(link[rel="canonical"][href*="case-"]) .article .callout strong{font-size:28px;color:var(--navy)}
@media(max-width:800px){body{font-size:16px}.wrap{width:min(100% - 30px,1080px)}nav{height:64px}.brand{padding-right:0;font-size:18px}.brand i{font-size:25px}.brand:after{display:none}.navlinks{gap:8px}.navlinks a:not(.cta){display:none}.navlinks .cta{padding:9px 13px}.hero{padding:42px 0 34px}.crumb{margin-bottom:22px}.hero h1{font-size:31px;line-height:1.5}.lead{font-size:16px}.content{grid-template-columns:1fr;padding:48px 0 66px}.toc{display:none}.article h2{font-size:24px;margin-top:50px}.article h3{font-size:18px}.callout{padding:22px 20px}.cards,.grid{grid-template-columns:1fr}.group{padding:54px 0}.group h2{font-size:28px}.group:first-of-type .guidecard:first-child{grid-column:auto;min-height:220px;padding-right:28px}.group:first-of-type .guidecard:first-child h3{font-size:22px}.guidecard{min-height:auto;padding:25px}.hubhero{padding:58px 0 46px}.hubhero:before{font-size:130px;right:-15px;top:80px}.footer{display:block}.footer span{display:block;margin-top:8px}html:has(link[rel="canonical"][href*="case-"]) .article .callout strong{font-size:23px}}
.editorial-note{display:grid;gap:3px;margin:18px 0 0;padding:15px 18px;border:1px solid #dfe1e6;border-radius:14px;background:#fff;color:#666b76;font-size:13px;line-height:1.7}.editorial-note b{color:#292b33;font-size:14px}.editorial-note a{color:#6250a7;text-decoration:underline;text-underline-offset:3px}