:root{--ink:#14263c;--ink-soft:#45566a;--muted:#738093;--paper:#f6f5f1;--white:#fff;--line:#dce2e5;--blue:#dce8f0;--blue-deep:#3c6887;--gold:#e5aa5d;--gold-soft:#fbf1e2;--green:#527c71;--serif:Georgia,'Yu Mincho',serif;--shadow:0 18px 50px rgba(19,38,60,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--white);color:var(--ink);font-family:'Noto Sans JP',-apple-system,BlinkMacSystemFont,'Yu Gothic',Meiryo,sans-serif;line-height:1.8;font-size:16px}a{color:inherit;text-decoration:none}a:hover{color:var(--blue-deep)}img,svg{max-width:100%}.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:-9999px;top:0;background:white;padding:8px}.skip-link:focus{left:8px;z-index:10}.top-note{height:34px;background:var(--ink);color:#e8edf0;display:flex;justify-content:space-between;align-items:center;padding:0 max(24px,calc((100vw - 1160px)/2));font-size:10px;letter-spacing:.05em}.top-note span:last-child{color:#d6b47f}.site-header{height:auto;border-bottom:1px solid var(--line);background:#fff}.header-inner{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;background:var(--ink);color:#fff;font-family:var(--serif);font-size:24px;font-weight:700;position:relative}.brand-mark:after{content:'';position:absolute;width:8px;height:8px;border-radius:50%;right:5px;bottom:5px;background:var(--gold)}.brand-name{font-size:15px;font-weight:700;letter-spacing:.02em;line-height:1.35}.brand-name small{display:block;font-size:9px;font-weight:500;letter-spacing:.08em;color:var(--muted);margin-top:3px}.header-inner nav ul,.site-footer nav ul{list-style:none;padding:0;margin:0;display:flex;gap:21px}.header-inner nav a{display:block;padding:28px 0 25px;font-size:12px;color:#536175;border-bottom:3px solid transparent;white-space:nowrap}.header-inner nav a:hover,.header-inner nav a.is-active{color:var(--ink);border-color:var(--gold)}
.hero{background:linear-gradient(118deg,#eaf0f2 0%,#f4f4f0 60%,#f8f3e9 100%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:80px;align-items:center;padding-top:84px;padding-bottom:82px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:.17em;color:var(--blue-deep);margin:0 0 12px}.eyebrow-dot{display:inline-block;width:7px;height:7px;background:var(--gold);border-radius:50%;margin-right:7px;vertical-align:1px}.hero h1{font-family:var(--serif),'Yu Mincho',serif;font-size:clamp(40px,5vw,63px);line-height:1.35;letter-spacing:.015em;margin:0 0 22px;font-weight:600}.hero h1 em{font-style:normal;color:var(--blue-deep)}.hero-lead{font-size:15px;max-width:650px;color:#4d5e6d;line-height:2}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:13px 20px;border-radius:5px;font-size:12px;font-weight:700;transition:transform .2s,background .2s}.button:hover{transform:translateY(-2px)}.button--primary{background:var(--ink);color:white}.button--primary:hover{background:#234767;color:white}.button--quiet{border:1px solid #aebdc5;color:var(--ink)}.hero-footnote{font-size:10px;color:#65778a;margin:18px 0 0;letter-spacing:.04em}.hero-index{border:1px solid rgba(20,38,60,.13);background:rgba(255,255,255,.7);padding:27px 29px;box-shadow:var(--shadow)}.hero-index__label{font-size:10px;color:var(--muted);letter-spacing:.14em}.hero-index ol{list-style:none;padding:0;margin:16px 0 13px}.hero-index li{display:flex;gap:15px;align-items:center;border-top:1px solid var(--line);padding:15px 0}.hero-index li>span{font-family:var(--serif);font-size:22px;color:#b78b51}.hero-index strong,.hero-index small{display:block}.hero-index strong{font-size:13px}.hero-index small{font-size:10px;color:var(--muted);margin-top:2px}.hero-index>p{border-top:1px solid var(--line);padding-top:13px;margin:0;font-size:10px;color:#667689}
.section{padding-top:78px;padding-bottom:78px}.section--paper{background:var(--paper)}.section--dark{background:var(--ink);color:#fff}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:29px}.section-heading h2{font-family:var(--serif),'Yu Mincho',serif;font-size:31px;line-height:1.4;margin:0;letter-spacing:.02em}.section-heading>p{max-width:400px;margin:0;color:var(--muted);font-size:12px}.section-heading--dark .eyebrow{color:#b8d3e2}.section-heading--dark>p{color:#c5cdd5}.topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.topic-card{min-height:222px;padding:21px 19px;border:1px solid var(--line);background:#fff;position:relative;transition:transform .2s,box-shadow .2s}.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.topic-card__number{font-family:var(--serif);font-size:21px;color:#af8856}.topic-card__count{float:right;font-size:8px;letter-spacing:.1em;color:#8c9aa7;margin-top:8px}.topic-card h3{font-size:17px;margin:20px 0 8px}.topic-card p{font-size:11px;color:var(--muted);line-height:1.8;margin:0;max-width:180px}.topic-card__arrow{position:absolute;right:17px;bottom:13px;color:var(--blue-deep)}.topic-card--2{background:#f5f8fa}.topic-card--3{background:#fbf7ef}.topic-card--4{background:#f5f8f5}.topic-card--5{background:#f7f5f8}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.article-card{background:#fff;border:1px solid var(--line);padding:20px 21px;min-height:207px;display:flex;flex-direction:column;align-items:flex-start;transition:border-color .2s,transform .2s}.article-card:hover{border-color:#a5bac5;transform:translateY(-3px)}.article-card__meta{display:flex;justify-content:space-between;width:100%;font-size:9px;color:var(--muted)}.article-card__meta span:first-child{color:var(--blue-deep);font-weight:700}.article-card h3{font-size:16px;line-height:1.65;margin:16px 0 8px}.article-card p{font-size:11px;color:#687788;line-height:1.8;margin:0 0 15px}.article-card__more{margin-top:auto;font-size:10px;color:var(--blue-deep);font-weight:700}.route-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}.route-grid a{padding:21px 18px;background:white;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:130px}.route-grid a:last-child{border:0}.route-grid a:hover{background:#f4f7f8}.route-grid span{font-size:9px;letter-spacing:.12em;color:#b2864e}.route-grid strong{font-size:13px;margin:11px 0 4px}.route-grid small{font-size:10px;color:var(--muted)}.editorial-note{display:flex;gap:18px;align-items:flex-start;background:#f1f5f6;padding:25px 28px;border-left:3px solid var(--blue-deep)}.editorial-note__icon{display:grid;place-items:center;flex:0 0 30px;height:30px;border-radius:50%;background:var(--ink);color:white;font-family:var(--serif)}.editorial-note h2{font-size:15px;margin:0 0 7px}.editorial-note p{font-size:11px;color:#627183;margin:0;max-width:820px}.editorial-note__links{display:flex;gap:18px;margin-top:12px;font-size:11px;color:var(--blue-deep);font-weight:700}
.offer-card{display:grid;grid-template-columns:130px 1fr auto;gap:24px;align-items:center;background:#fff;border:1px solid #eddfc8;border-radius:5px;padding:21px 24px;color:var(--ink);box-shadow:0 12px 36px rgba(13,31,48,.12);position:relative}.offer-card__flag{align-self:start;background:var(--gold-soft);color:#805b2e;padding:6px 9px;font-size:9px;font-weight:700;letter-spacing:.04em}.offer-card__eyebrow{font-size:9px;letter-spacing:.1em;color:#9a7649;margin:0 0 3px}.offer-card h2{font-size:17px;margin:0 0 5px}.offer-card p:not(.offer-card__eyebrow){font-size:10px;line-height:1.75;color:#677587;margin:0}.button--offer{background:#b47735;color:#fff;white-space:nowrap}.button--offer:hover{background:#975e28;color:#fff}.offer-card--compact{margin-top:26px;grid-template-columns:110px 1fr auto;padding:18px 20px}.offer-card--compact h2{font-size:14px}.offer-card--compact p:not(.offer-card__eyebrow){font-size:10px}
.page-wrap{padding-top:20px;padding-bottom:70px}.breadcrumbs{font-size:10px;color:#8190a0;margin-bottom:25px;overflow:hidden}.breadcrumbs ol{list-style:none;display:flex;gap:10px;padding:0;margin:0;white-space:nowrap}.breadcrumbs li:not(:last-child):after{content:'›';padding-left:10px;color:#a6b0b8}.breadcrumbs a:hover{color:var(--blue-deep)}.category-hero{position:relative;background:#edf2f3;padding:42px 50px;margin-bottom:27px;min-height:196px}.category-hero h1{font-family:var(--serif),'Yu Mincho',serif;font-size:43px;margin:0 0 9px}.category-hero>p:not(.eyebrow){color:#536578;max-width:640px;font-size:13px;margin:0}.category-hero__count{position:absolute;right:40px;bottom:30px;font-family:var(--serif);font-size:25px;color:#9b784d;text-align:right}.category-hero__count span{display:block;font:10px 'Noto Sans JP',sans-serif;color:#79899a}.category-intro{padding:16px 20px;background:#faf8f2;border-left:3px solid var(--gold);margin:24px 0 20px}.category-intro strong{font-size:12px}.category-intro p{font-size:11px;color:#657487;margin:5px 0 0}.page-wrap>.article-grid{margin-top:20px}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(220px,1fr);gap:65px;padding-top:20px;padding-bottom:70px}.article-layout>.breadcrumbs{grid-column:1/-1;margin-bottom:-12px}.article-header{padding:25px 0 23px;border-bottom:1px solid var(--line)}.article-kicker{display:flex;gap:9px;margin:0 0 12px}.article-kicker span{font-size:9px;color:var(--blue-deep);font-weight:700;letter-spacing:.07em}.article-kicker span+span{color:#9b784d}.article-header h1{font-family:var(--serif),'Yu Mincho',serif;font-size:clamp(29px,3vw,39px);line-height:1.55;margin:0;letter-spacing:.01em}.article-summary{font-size:14px;color:#546679;margin:10px 0 18px}.article-meta{display:flex;gap:17px;flex-wrap:wrap;color:#8793a0;font-size:9px}.article-body{font-size:14px}.article-lead{font-size:16px;line-height:2;color:#34495e;margin:27px 0}.article-body section{margin:33px 0}.article-body section h2,.source-box h2{font-size:20px;line-height:1.5;margin:0 0 11px;padding-left:13px;border-left:3px solid var(--gold)}.article-body section p{margin:0;color:#46596d;line-height:2.05}.key-points,.checklist-box{background:#f2f6f7;border:1px solid #dce7e9;padding:19px 21px;margin:25px 0}.key-points strong{font-size:12px}.key-points ul,.checklist-box ul{list-style:none;padding:0;margin:11px 0 0}.key-points li,.checklist-box li{position:relative;padding-left:20px;margin:6px 0;font-size:12px;color:#42566a}.key-points li:before,.checklist-box li:before{content:'✓';position:absolute;left:0;color:var(--green);font-weight:800}.checklist-box{background:#fbf7ef;border-color:#eee1cc}.checklist-box h2{font-size:14px!important;border:0!important;padding:0!important;margin:0!important}.source-box{padding:20px;background:#f7f8f8;border:1px solid var(--line);margin:30px 0}.source-box h2{font-size:14px;border:0;padding:0;margin:0 0 5px}.source-box p{font-size:10px;color:var(--muted);margin:0}.source-box ul{padding-left:18px;margin:10px 0 0}.source-box li{font-size:11px;margin:4px 0}.source-box a{color:var(--blue-deep);text-decoration:underline;text-underline-offset:3px}.article-disclaimer{border-top:1px solid var(--line);padding-top:15px;font-size:10px;color:#7a8794;line-height:1.9}.article-back{border-top:1px solid var(--line);padding-top:18px}.text-link{font-size:11px;color:var(--blue-deep);font-weight:700}.article-aside{padding-top:116px}.aside-card{border:1px solid var(--line);padding:18px;margin-bottom:13px;background:#fafbfb}.aside-card .eyebrow{font-size:8px}.aside-card>strong{font-size:13px}.aside-card>p:not(.eyebrow){font-size:10px;line-height:1.8;color:var(--muted)}.aside-card--nav ul{list-style:none;padding:0;margin:12px 0 0}.aside-card--nav li{border-top:1px solid var(--line);padding:9px 0;font-size:10px;line-height:1.7}.aside-note{font-size:9px;color:#8793a0;line-height:1.8;padding:0 3px}
.prose-page{max-width:850px;padding-top:22px;padding-bottom:85px}.prose-page h1{font-family:var(--serif),'Yu Mincho',serif;font-size:42px;margin:10px 0 28px}.prose-page h2{font-size:18px;margin:31px 0 8px;padding-left:12px;border-left:3px solid var(--gold)}.prose-page p{font-size:13px;line-height:2.05;color:#4d6074}.prose-page .page-intro{font-size:16px;color:#31485e;margin:0 0 30px}.site-footer{background:#101f31;color:#dce4e9}.footer-main{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:45px;align-items:start;padding-top:40px;padding-bottom:34px}.brand--footer .brand-mark{background:#eff3f4;color:var(--ink)}.brand--footer .brand-name{color:white}.brand--footer .brand-name small{color:#aebac5}.footer-main>p{font-size:10px;color:#aebac5;margin:0;line-height:1.9}.site-footer nav ul{flex-wrap:wrap;gap:9px 15px}.site-footer nav a{font-size:10px;color:#d9e0e5}.site-footer nav a:hover{color:#e7bb7e}.footer-bottom{border-top:1px solid #2b3b4d;padding-top:13px;padding-bottom:13px;display:flex;justify-content:space-between;gap:15px;font-size:9px;color:#9aa8b4}
@media(max-width:980px){.header-inner{align-items:flex-start;flex-direction:column;gap:3px;padding-top:13px}.header-inner nav{width:100%;overflow:auto}.header-inner nav ul{gap:20px}.header-inner nav a{padding:12px 0 10px}.hero-grid{gap:38px}.topic-grid{grid-template-columns:repeat(3,1fr)}.article-layout{gap:30px;grid-template-columns:minmax(0,2.5fr) minmax(190px,1fr)}.footer-main{grid-template-columns:1fr 1.3fr}.footer-main nav{grid-column:1/-1}.site-footer nav ul{gap:14px 22px}}
@media(max-width:680px){.container{width:min(100% - 32px,540px)}.top-note{padding:0 16px;font-size:8px}.top-note span:last-child{display:none}.header-inner{min-height:unset}.brand{padding-bottom:8px}.brand-mark{width:35px;height:35px}.brand-name{font-size:14px}.header-inner nav ul{gap:17px}.header-inner nav a{font-size:10px}.hero-grid{grid-template-columns:1fr;gap:26px;padding-top:50px;padding-bottom:48px}.hero h1{font-size:42px}.hero-lead{font-size:13px}.hero-index{padding:20px}.hero-actions .button{flex:1;padding:12px 10px;font-size:10px}.section{padding-top:54px;padding-bottom:54px}.section-heading{display:block;margin-bottom:20px}.section-heading h2{font-size:25px}.section-heading>p{font-size:11px;margin-top:9px}.topic-grid{grid-template-columns:repeat(2,1fr);gap:9px}.topic-card{min-height:185px;padding:16px 14px}.topic-card h3{font-size:15px;margin-top:17px}.topic-card p{font-size:10px}.article-grid{grid-template-columns:1fr;gap:10px}.article-card{min-height:unset;padding:17px}.article-card h3{font-size:15px;margin:11px 0 5px}.article-card p{margin-bottom:10px}.route-grid{grid-template-columns:repeat(2,1fr)}.route-grid a{min-height:117px;border-bottom:1px solid var(--line);padding:16px 13px}.route-grid a:nth-child(2){border-right:0}.route-grid a:nth-child(3){border-bottom:0}.route-grid a:last-child{border-bottom:0}.offer-card,.offer-card--compact{grid-template-columns:1fr;gap:9px;padding:17px}.offer-card__flag{justify-self:start}.offer-card .button{width:100%}.category-hero{padding:27px 23px;min-height:unset}.category-hero h1{font-size:34px}.category-hero__count{position:static;text-align:left;font-size:20px;margin-top:13px}.category-hero__count span{display:inline;margin-left:8px}.page-wrap{padding-top:14px}.article-layout{display:flex;flex-direction:column;gap:0;padding-top:14px}.article-layout>.breadcrumbs{margin-bottom:0}.article-header{padding-top:7px}.article-header h1{font-size:29px}.article-summary{font-size:12px}.article-lead{font-size:14px;margin:21px 0}.article-body{font-size:13px}.article-body section{margin:27px 0}.article-body section h2{font-size:17px}.article-aside{padding-top:24px}.aside-card--nav{display:none}.prose-page h1{font-size:34px}.prose-page h2{font-size:16px}.footer-main{grid-template-columns:1fr;gap:19px;padding-top:29px;padding-bottom:24px}.footer-main nav{grid-column:auto}.site-footer nav ul{gap:10px 18px}.footer-bottom{display:block;line-height:1.8}.footer-bottom span:last-child{display:block;margin-top:3px}.editorial-note{padding:18px;gap:12px}.editorial-note p{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
 .application-box{background:#edf3f5;border-left:3px solid var(--blue-deep);padding:19px 21px;margin:27px 0}.application-box h2{font-size:14px!important;border:0!important;padding:0!important;margin:0 0 8px!important}.application-box p{font-size:12px;line-height:2;color:#43596d;margin:0}