:root{--navy:#071827;--green:#0d5e49;--gold:#c9aa62;--ink:#17302a;--muted:#6b7c76;--line:#dce5e1;--warm:#f6f3ec;--sans:"Noto Sans JP",sans-serif;--serif:"Noto Serif JP",serif;--latin:Inter,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
.column-header{position:absolute;z-index:10;top:0;right:0;left:0;display:flex;align-items:center;padding:24px clamp(22px,5vw,78px);color:#fff;border-bottom:1px solid rgba(255,255,255,.18)}.column-brand{display:flex;align-items:center;gap:16px;margin-right:auto}.column-brand img{width:220px}.column-brand span{padding-left:16px;border-left:1px solid rgba(255,255,255,.35);font:500 9px var(--latin);letter-spacing:.15em}.column-header nav{display:flex;gap:30px;font-size:12px;font-weight:600}.column-header nav a:last-child{padding:12px 18px;color:var(--navy);background:#fff}
.column-hero{min-height:390px;display:flex;flex-direction:column;justify-content:end;padding:150px max(28px,calc((100% - 1320px)/2)) 62px;color:#fff;background:radial-gradient(circle at 78% 30%,rgba(42,117,93,.58),transparent 30%),linear-gradient(125deg,#071827,#0b493d)}.column-hero>p{margin:0 0 14px;color:var(--gold);font:600 10px var(--latin);letter-spacing:.22em}.column-hero h1{max-width:1000px;margin:0;font:500 clamp(38px,4.7vw,70px)/1.35 var(--serif)}.column-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;color:rgba(255,255,255,.62);font-size:11px}.column-breadcrumb strong{color:#fff;font-weight:500}
.column-list-page,.column-article{max-width:1320px;margin:auto;padding:110px 28px 130px}.column-list-page>header{text-align:center}.column-list-page>header>p{margin:0;color:var(--gold);font:600 10px var(--latin);letter-spacing:.2em}.column-list-page>header h2{margin:18px 0;font:500 clamp(38px,4vw,58px) var(--serif)}.column-list-page>header span{color:var(--muted);font-size:14px}.column-filter{display:flex;justify-content:center;gap:8px;margin:46px 0}.column-filter button{padding:10px 18px;color:var(--muted);border:1px solid var(--line);background:#fff;font:inherit;font-size:11px}.column-filter .is-active{color:#fff;background:var(--green);border-color:var(--green)}
.column-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.column-card{min-height:300px;display:flex;flex-direction:column;padding:32px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 16px 42px rgba(7,24,39,.07);transition:.4s;animation:cardIn .65s var(--delay) both}.column-card:hover{transform:translateY(-6px);box-shadow:0 24px 55px rgba(7,24,39,.12)}.column-card>div{display:flex;align-items:center;gap:12px}.column-card time{color:var(--muted);font:500 10px var(--latin)}.column-card>div span{padding:6px 10px;border-radius:999px;color:var(--green);background:#e7f1ed;font-size:9px;font-weight:700}.column-card h3{margin:24px 0 14px;font:600 20px/1.65 var(--serif)}.column-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.85}.column-card b{display:flex;justify-content:space-between;margin-top:auto;padding-top:24px;color:var(--green);font:600 9px var(--latin);letter-spacing:.14em}.column-card i{color:var(--gold);font-style:normal;font-size:16px}@keyframes cardIn{from{opacity:0;transform:translateY(20px)}}
.column-article{max-width:1180px}.column-article-head{max-width:900px;margin:auto;padding-bottom:65px;border-bottom:1px solid var(--line)}.column-article-head>div{display:flex;align-items:center;gap:14px}.column-article-head time{font:500 11px var(--latin)}.column-article-head span{padding:6px 11px;border-radius:999px;color:var(--green);background:#e7f1ed;font-size:9px;font-weight:700}.column-article-head h2{margin:25px 0;font:600 clamp(34px,4vw,56px)/1.45 var(--serif)}.column-article-head p{margin:0;color:var(--muted);font-size:14px;line-height:2}.column-article-layout{display:grid;grid-template-columns:240px minmax(0,800px);gap:70px;margin-top:70px}.column-toc{position:sticky;top:25px;align-self:start;padding:24px;border:1px solid var(--line);background:#f8faf9}.column-toc>strong{color:var(--gold);font:600 9px var(--latin);letter-spacing:.18em}.column-toc nav{display:grid;margin-top:15px}.column-toc a{display:grid;grid-template-columns:28px 1fr;gap:5px;padding:10px 0;border-bottom:1px solid var(--line);font-size:10px;line-height:1.6}.column-toc span{color:var(--gold);font:500 9px var(--latin)}
.column-body{min-width:0;color:#344a44;font-size:15px;line-height:2.05}.column-body h2{margin:70px 0 24px;padding:18px 22px;color:#fff;background:linear-gradient(100deg,var(--green),#174c42);font:600 26px/1.5 var(--serif)}.column-body h2:first-child{margin-top:0}.column-body h3{margin:42px 0 16px;padding-left:15px;border-left:3px solid var(--gold);font:600 20px/1.6 var(--serif)}.column-body h4{margin:30px 0 12px;font-size:17px}.column-body p{margin:0 0 20px}.column-body ul,.column-body ol{margin:18px 0 28px;padding:22px 24px 22px 45px;border-radius:10px;background:#f4f7f5}.column-body li+li{margin-top:7px}.column-body a{color:var(--green);text-decoration:underline;text-underline-offset:3px}.column-body strong{color:#163e34}.column-body table{width:100%;min-width:600px;border-collapse:collapse}.column-body table th,.column-body table td{padding:13px;border:1px solid var(--line);text-align:left}.column-body table th{color:#fff;background:var(--green)}.column-body div:has(>table){max-width:100%;overflow-x:auto}.column-body img{margin:30px auto;border-radius:12px}.column-body blockquote{margin:30px 0;padding:24px;border-left:4px solid var(--gold);background:var(--warm)}
.column-pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:80px 0 35px}.column-pager a{display:grid;gap:10px;padding:24px;border:1px solid var(--line)}.column-pager a:last-child{text-align:right}.column-pager span{color:var(--gold);font:600 9px var(--latin);letter-spacing:.15em}.column-pager strong{font-size:12px;line-height:1.6}.column-back{display:flex;justify-content:space-between;max-width:260px;margin-left:auto;padding:16px 2px;border-bottom:1px solid var(--ink);font-size:12px}
.column-cta{display:grid;grid-template-columns:1fr auto;align-items:center;gap:50px;padding:90px max(28px,calc((100% - 1180px)/2));color:#fff;background:var(--navy)}.column-cta p{margin:0 0 18px;color:var(--gold);font:600 9px var(--latin);letter-spacing:.2em}.column-cta h2{margin:0;font:500 clamp(30px,3vw,48px)/1.5 var(--serif)}.column-cta a{display:flex;justify-content:space-between;gap:55px;min-width:260px;padding:20px;color:var(--navy);background:var(--gold);font-size:13px;font-weight:700}footer{display:flex;align-items:center;justify-content:space-between;padding:50px max(28px,calc((100% - 1180px)/2));color:#fff;background:#04111d}footer img{width:210px}footer p{font:500 9px var(--latin);opacity:.5}
[hidden]{display:none!important}@media(max-width:900px){.column-header{padding:18px 20px}.column-brand img{width:180px}.column-brand span,.column-header nav{display:none}.column-hero{min-height:330px;padding:120px 22px 50px}.column-list-page,.column-article{padding:80px 22px 95px}.column-list{grid-template-columns:repeat(2,1fr)}.column-article-layout{grid-template-columns:1fr;gap:35px}.column-toc{position:static}.column-cta{grid-template-columns:1fr;padding:75px 22px}.column-cta a{min-width:0;width:100%}}@media(max-width:600px){.column-list{grid-template-columns:1fr}.column-card{min-height:270px;padding:27px}.column-filter{justify-content:start;overflow-x:auto}.column-article-head h2{font-size:31px}.column-body{font-size:14px}.column-body h2{font-size:22px}.column-pager{grid-template-columns:1fr}.column-cta h2{font-size:29px}footer{align-items:start;flex-direction:column;gap:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.column-card{animation:none;transition:none}}