:root{--bg:#fff;--bg2:#f4f6f8;--ink:#1e2a33;--sub:#5c6770;--line:#e6e9ed;--navy:#1f4e79;--navy-d:#163a5c;--gold:#a98545;--dark:#15212b}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:80px}body{background:var(--bg);color:var(--ink);font-family:Zen Kaku Gothic New,sans-serif;font-weight:400;line-height:1.95;letter-spacing:.02em;-webkit-font-smoothing:antialiased;overflow-x:hidden}.bold{font-weight:700}a{color:inherit;text-decoration:none}.wrap{max-width:1040px;margin:0 auto;padding:0 24px}header.site{position:fixed;top:0;left:0;right:0;z-index:30;transition:background .4s,box-shadow .4s;background:transparent}header.site.solid{background:hsla(0,0%,100%,.92);-webkit-backdrop-filter:saturate(120%) blur(8px);backdrop-filter:saturate(120%) blur(8px);box-shadow:0 1px 0 var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{font-weight:700;font-size:20px;letter-spacing:.06em;color:#fff;transition:color .4s}header.solid .brand{color:var(--ink)}.menu{display:flex;gap:26px;font-size:13.5px;font-weight:500;letter-spacing:.04em;color:hsla(0,0%,100%,.9)}header.solid .menu{color:var(--sub)}.menu a:hover{color:#fff}header.solid .menu a:hover{color:var(--navy)}@media(max-width:640px){.menu{display:none}}header.site.static-solid{background:hsla(0,0%,100%,.96);-webkit-backdrop-filter:saturate(120%) blur(8px);backdrop-filter:saturate(120%) blur(8px);box-shadow:0 1px 0 var(--line)}header.static-solid .brand{color:var(--ink)}.hero{position:relative;min-height:78vh;display:flex;align-items:center;justify-content:center;text-align:center;background:linear-gradient(160deg,#1f4e79,#163a5c 60%,#10293f);color:#fff;overflow:hidden;padding:120px 24px 90px}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 30%,rgba(169,133,69,.16),transparent 70%)}.hero .inner{position:relative;z-index:2;max-width:780px}.hero .eyebrow{font-size:13px;letter-spacing:.34em;color:#c8b98f;font-weight:500;margin-bottom:22px}.hero .logo{font-weight:700;font-size:clamp(40px,7vw,64px);letter-spacing:.08em;line-height:1.2}.hero .gold{display:block;width:54px;height:2px;background:var(--gold);margin:26px auto}.hero .lead{font-size:clamp(17px,2.4vw,21px);font-weight:500;line-height:1.9;color:#eaf0f6}.hero .tag{margin-top:18px;font-size:14px;letter-spacing:.06em;color:#a9bbcb}.hero2{padding:92px 0 0;background:var(--bg)}.hero2-img{display:block;width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:12px;box-shadow:0 10px 30px rgba(20,40,60,.15)}.hero2-text{text-align:center;padding:44px 16px 4px;max-width:780px;margin:0 auto}.hero2 .eyebrow{font-size:13px;letter-spacing:.3em;color:var(--gold);font-weight:600;margin-bottom:18px}.hero2 .logo{font-weight:700;font-size:clamp(34px,6vw,56px);letter-spacing:.08em;line-height:1.2;color:var(--ink);margin:0}.hero2 .gold{width:54px;height:2px;background:var(--gold);margin:22px auto}.hero2 .lead{font-size:clamp(15.5px,2.2vw,19px);font-weight:500;line-height:2;color:var(--sub);margin:0}.hero2 .tag{margin-top:14px;font-size:13px;letter-spacing:.06em;color:#9aa6b1}@media(max-width:640px){.hero2-img{aspect-ratio:16/9}}.intro{padding:84px 0;text-align:center;max-width:720px;margin:0 auto}.intro h2{font-weight:700;font-size:clamp(20px,3vw,26px);line-height:1.7;margin-bottom:22px;letter-spacing:.02em}.intro p{color:var(--sub);font-size:15.5px;line-height:2}.articles{padding:20px 0 96px}.sec-head{text-align:center;margin:0 0 48px}.sec-head .en{font-size:12px;letter-spacing:.32em;color:var(--gold);font-weight:600}.sec-head .ja{font-weight:700;font-size:22px;letter-spacing:.06em;margin-top:8px}.cat-block{margin-bottom:56px}.cat-label{display:flex;align-items:center;gap:14px;margin-bottom:8px}.cat-label .ja{font-weight:700;font-size:17px;letter-spacing:.08em;color:var(--navy)}.cat-label .en{font-size:12px;letter-spacing:.22em;color:var(--gold);font-weight:600}.cat-label .ln{flex:1 1;height:1px;background:var(--line)}.post{display:flex;gap:22px;align-items:center;padding:22px 6px;border-bottom:1px solid var(--line);transition:background .2s}.post:hover{background:var(--bg2)}.post:hover .post-t{color:var(--navy)}.ec-wrap{flex:0 0 210px}.post-main{flex:1 1;min-width:0}.post-t{font-weight:700;font-size:19px;letter-spacing:.02em;line-height:1.55;transition:color .2s}.post-x{margin-top:9px;color:var(--sub);font-size:13.5px;line-height:1.85}.post-meta{margin-top:11px;font-size:12px;letter-spacing:.1em;color:var(--gold);font-weight:600}.aud{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.04em;line-height:1.6;padding:2px 9px;border-radius:999px;margin-right:8px;vertical-align:middle}.aud-dr{background:rgba(31,78,121,.1);color:var(--navy)}.aud-all{background:rgba(18,122,104,.13);color:#107a67}.a-cat .aud{margin:0 0 0 10px}.feat-card .aud{margin:0 16px 14px}@media(max-width:600px){.post{flex-direction:column;align-items:stretch;gap:14px}.ec-wrap{flex:auto}}.eyecatch{position:relative;width:100%;aspect-ratio:16/10;border-radius:9px;overflow:hidden;background:linear-gradient(150deg,#21527c,#12304a 70%,#0e2740);padding:14px 16px;display:flex;flex-direction:column;box-shadow:0 6px 20px rgba(20,40,60,.18)}.eyecatch:before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--accent,#a98545)}.eyecatch:after{content:"";position:absolute;inset:0;background:radial-gradient(70% 70% at 82% 12%,rgba(169,133,69,.2),transparent 70%)}.ec-cat{position:relative;z-index:1;font-size:10px;letter-spacing:.14em;color:var(--accent,#a98545);font-weight:700}.ec-brand{position:absolute;top:14px;right:15px;z-index:1;font-size:9px;letter-spacing:.08em;color:hsla(0,0%,100%,.55);font-weight:500}.ec-bottom{margin-top:auto;position:relative;z-index:1}.ec-kpi{color:var(--accent,#a98545);font-weight:700;font-size:23px;line-height:1.1;letter-spacing:.02em;margin-bottom:5px}.ec-title{color:#fff;font-weight:700;font-size:14px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}footer.site{background:var(--dark);color:#b9c2cb;padding:64px 0 40px}.f-brand{font-weight:700;font-size:20px;letter-spacing:.06em;color:#fff}.f-note{margin-top:16px;font-size:13px;color:#8e99a3;max-width:540px;line-height:1.95}.f-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:28px;font-size:12.5px;letter-spacing:.04em;color:#aeb8c1}.f-links a:hover{color:#fff}.f-copy{margin-top:36px;font-size:12px;letter-spacing:.14em;color:#6b7681}article.post-body{max-width:720px;margin:0 auto;padding:108px 24px 40px}.a-cat{font-size:12px;letter-spacing:.28em;color:var(--gold);font-weight:600}.a-cat,.a-title{text-align:center}.a-title{font-weight:700;font-size:clamp(23px,3.6vw,30px);line-height:1.6;letter-spacing:.02em;margin:16px 0 22px}.a-meta{text-align:center;font-size:12.5px;letter-spacing:.06em;color:var(--sub);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin-bottom:46px}.a-body p{margin:0 0 24px;font-size:16px;line-height:2}.a-body h2{font-weight:700;font-size:21px;letter-spacing:.03em;margin:50px 0 20px;padding-left:14px;border-left:4px solid var(--navy)}.a-body h3{font-weight:700;font-size:17px;margin:32px 0 13px}.a-body ul{margin:0 0 24px;padding-left:0;list-style:none}.a-body li{position:relative;padding-left:20px;margin-bottom:11px;font-size:15.5px;line-height:1.9}.a-body li:before{content:"";position:absolute;left:2px;top:13px;width:6px;height:6px;background:var(--navy);border-radius:50%}.a-body strong{font-weight:700;color:var(--navy-d)}.a-body a{color:var(--navy);border-bottom:1px solid #b9cbe0}.a-body table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:13.5px}.a-body td,.a-body th{border:1px solid var(--line);padding:11px 13px;text-align:left;line-height:1.7;vertical-align:top}.a-body th{background:var(--navy);color:#fff;font-weight:700;letter-spacing:.03em}.a-body tr:nth-child(2n) td{background:var(--bg2)}.a-body hr{border:none;border-top:1px solid var(--line);margin:38px 0}.a-foot{font-size:12.5px;color:var(--sub);line-height:1.9;margin-top:8px}.back{display:inline-block;margin:40px 0 0;font-size:13px;letter-spacing:.06em;color:var(--navy);font-weight:600}.a-hero{margin:4px 0 28px}.a-hero .eyecatch{aspect-ratio:16/8}.thumb{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:9px;box-shadow:0 6px 20px rgba(20,40,60,.14)}.toc{background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 22px;margin:6px 0 36px}.toc-h{font-weight:700;font-size:14px;letter-spacing:.08em;color:var(--navy);margin-bottom:10px}.toc ol{margin:0;padding-left:1.3em}.toc li{margin:7px 0;font-size:14.5px;line-height:1.6}.toc a{color:var(--ink);border-bottom:1px solid transparent}.toc a:hover{color:var(--navy);border-bottom-color:#b9cbe0}.a-body img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;height:auto;border-radius:8px;margin:22px 0}.aff{border:1px solid var(--line);background:#fff;border-radius:8px;padding:24px 26px;margin:36px 0;box-shadow:0 6px 24px rgba(31,78,121,.06)}.aff .pr{display:inline-block;font-size:10.5px;letter-spacing:.16em;color:var(--sub);border:1px solid var(--line);padding:2px 9px;border-radius:3px;margin-bottom:13px}.aff h4{font-weight:700;font-size:17px;margin:0 0 8px}.aff p{font-size:14px;color:var(--sub);margin:0 0 16px;line-height:1.85}.a-body a.aff-btn,.aff-btn{display:inline-block;font-weight:700;font-size:16px;letter-spacing:.04em;color:#fff;background:var(--navy);border:none;border-radius:8px;padding:16px 36px;box-shadow:0 4px 14px rgba(31,78,121,.28);transition:.18s}.a-body a.aff-btn:hover,.aff-btn:hover{background:var(--navy-d);box-shadow:0 7px 22px rgba(31,78,121,.4);transform:translateY(-1px)}@media(max-width:600px){.a-body a.aff-btn,.aff-btn{display:block;text-align:center;padding:17px 20px}}.chart{margin:32px 0;background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 14px 12px}.chart svg{width:100%;height:auto;display:block}.chart figcaption{font-size:11.5px;color:var(--sub);line-height:1.75;margin-top:10px}@media(prefers-reduced-motion:reduce){*{animation:none!important}}.a-layout{display:grid;grid-template-columns:minmax(0,1fr);grid-gap:48px;gap:48px;max-width:1100px;margin:0 auto;padding:108px 24px 40px}.a-layout article.post-body{max-width:720px;width:100%;margin:0 auto;padding:0}.side-inner{display:flex;flex-direction:column;gap:22px}.s-card{background:#fff;border:1px solid #e8e4dc;border-radius:12px;padding:18px 18px 14px}.s-h{font-size:12.5px;color:var(--navy);letter-spacing:.08em;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--gold)}.s-h,.s-name{font-weight:700}.s-name{font-size:16px;color:var(--ink);margin-bottom:6px}.s-bio{line-height:1.85;color:#5a646d;margin:0 0 14px}.s-bio,.s-x{font-size:12.5px}.s-x{display:block;text-align:center;background:var(--navy);color:#fff;border-radius:999px;padding:10px 12px;font-weight:700;text-decoration:none;margin-bottom:4px}.s-x:hover{opacity:.88}.s-post{display:flex;gap:10px;align-items:center;padding:9px 0;border-bottom:1px dashed #e8e4dc;text-decoration:none}.s-post:last-child{border-bottom:none}.s-post img{width:88px;aspect-ratio:16/9;object-fit:cover;border-radius:6px;flex:none}.s-t{font-size:12px;line-height:1.55;color:var(--ink)}.s-post:hover .s-t{color:var(--navy)}.s-link{display:block;font-size:12.5px;line-height:1.6;color:var(--ink);text-decoration:none;padding:8px 0;border-bottom:1px dashed #e8e4dc}.s-link:last-child{border-bottom:none}.s-link:hover{color:var(--navy)}@media(min-width:1024px){.a-layout{grid-template-columns:minmax(0,720px) 300px;justify-content:center}.a-layout article.post-body{margin:0}.side-inner{position:-webkit-sticky;position:sticky;top:92px}}.featured{padding:8px 0 4px}.feat-head{display:flex;align-items:baseline;gap:12px;margin-bottom:20px}.feat-head .ja{font-size:20px;font-weight:700;color:var(--navy)}.feat-head .en{font-size:12px;letter-spacing:.12em;color:var(--gold);font-weight:700}.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:22px;gap:22px}.feat-card{display:block;background:#fff;border:1px solid #e8e4dc;border-radius:12px;overflow:hidden;text-decoration:none;transition:.18s;box-shadow:0 4px 16px rgba(31,78,121,.05)}.feat-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(31,78,121,.13)}.feat-thumb{aspect-ratio:16/9;overflow:hidden;background:#f3f0ea}.feat-thumb img{width:100%;height:100%;object-fit:cover;display:block}.feat-t{font-size:15.5px;font-weight:700;line-height:1.5;color:var(--ink);padding:14px 16px 0}.feat-x{font-size:12.5px;line-height:1.7;color:#6a747d;padding:8px 16px 16px}@media(max-width:760px){.feat-grid{grid-template-columns:1fr 1fr;gap:14px}.feat-t{font-size:13.5px}.feat-x{display:none}}@media(max-width:430px){.feat-grid{grid-template-columns:1fr 1fr;gap:11px}.feat-t{font-size:12.5px;padding:10px 11px 0}}.hero2.compact{padding:72px 0 0}.hero2.compact .hero2-img{aspect-ratio:32/10;max-height:300px;object-position:center 95%}.hero2.compact .hero2-text{padding:18px 16px 0}.hero2.compact .eyebrow{margin-bottom:10px}.hero2.compact .logo{font-size:clamp(30px,5vw,46px)}.hero2.compact .lead{margin-top:10px;font-size:clamp(13.5px,2vw,16px)}@media(max-width:640px){.hero2.compact{padding:64px 0 0}.hero2.compact .hero2-img{aspect-ratio:16/9;max-height:none}}.utility{padding:22px 0 4px}.util-row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.search-box{position:relative;flex:1 1;min-width:240px}.search-box input{width:100%;padding:12px 14px 12px 40px;border:1px solid #ddd6cb;border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff;outline:none;transition:.2s}.search-box input:focus{border-color:var(--navy);box-shadow:0 0 0 3px rgba(31,78,121,.1)}.search-ico{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:14px;opacity:.5;pointer-events:none}.search-res{position:absolute;top:calc(100% + 6px);left:0;right:0;background:#fff;border:1px solid #e8e4dc;border-radius:10px;box-shadow:0 10px 30px rgba(31,78,121,.14);z-index:20;overflow:hidden;max-height:360px;overflow-y:auto}.search-item{display:block;padding:11px 15px;border-bottom:1px solid #f0ece4;text-decoration:none}.search-item:last-child{border-bottom:none}.search-item:hover{background:var(--bg2)}.si-cat{display:block;font-size:10.5px;letter-spacing:.08em;color:var(--gold);font-weight:700;margin-bottom:3px}.si-t{display:block;font-size:13.5px;line-height:1.5;color:var(--ink)}.search-none{padding:14px 15px;font-size:13px;color:#8a929a}.cat-nav{gap:8px}.cat-nav,.util-row2{display:flex;flex-wrap:wrap}.util-row2{gap:12px;align-items:center;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}.filter-label{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--sub)}.aud-filter{display:flex;gap:8px;flex-wrap:wrap}.aud-btn{padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:12.5px;font-weight:700;color:var(--sub);background:#fff;cursor:pointer;transition:.15s;font-family:inherit}.aud-btn:hover{border-color:var(--navy);color:var(--navy)}.aud-btn.on{color:#fff}.aud-btn.f-dr.on,.aud-btn.on{background:var(--navy);border-color:var(--navy)}.aud-btn.f-all.on{background:#107a67;border-color:#107a67}.cat-chip{display:inline-block;padding:9px 16px;border:1px solid var(--navy);border-radius:999px;font-size:13px;font-weight:600;color:var(--navy);text-decoration:none;transition:.18s;white-space:nowrap}.cat-chip:hover{background:var(--navy);color:#fff}@media(max-width:600px){.util-row{flex-direction:column;align-items:stretch}.search-box{min-width:0}.cat-nav{justify-content:center}}.feat-head .paren{font-size:13.5px;color:#8a929a;font-weight:600}.featured{padding:18px 0 4px}