@charset "UTF-8";
:root{--ink:#193b3b;--body:#314445;--muted:#5e7270;--teal:#175f59;--pale:#eaf1ed;--paper:#faf9f5;--line:#d8e1da;--orange:#b35631;--font:18px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--body);font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;font-size:var(--font);line-height:1.95;overflow-wrap:anywhere}a{color:var(--teal);text-underline-offset:.22em}a:hover{color:#8a4126}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #b45631;outline-offset:5px}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3{color:var(--ink);line-height:1.55;letter-spacing:.015em}h1{font-size:clamp(2rem,4vw,3.5rem);margin:.3em 0 .55em;font-weight:800}h2{font-size:clamp(1.45rem,2.6vw,2rem);margin:0 0 .7em}h3{font-size:1.14rem}p{margin:.75em 0 1.3em}.wrap{max-width:1200px;margin:auto;padding:0 36px}.skip{position:fixed;top:-100px;left:10px;z-index:100;background:white;padding:10px}.skip:focus{top:10px}.topline{background:var(--ink);color:#fff;font-size:12px;letter-spacing:.1em;padding:6px 0}.header{background:rgba(250,249,245,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.header-row{min-height:90px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;white-space:nowrap;color:var(--ink)}.brand img{width:44px;height:44px}.brand strong{font-size:25px;font-weight:800;letter-spacing:.06em}.brand small{display:block;font-size:10px;letter-spacing:.19em;line-height:1.1}.nav{margin-left:auto;display:flex;align-items:center;gap:23px}.nav a{font-size:14px;text-decoration:none;font-weight:700;padding:12px 0;border-bottom:2px solid transparent}.nav a[aria-current]{border-color:var(--teal)}.search-link{display:flex;gap:6px;align-items:center}.menu-toggle{display:none;background:none;border:1px solid var(--line);padding:7px 12px;border-radius:7px;font-size:14px;color:var(--ink)}.hero{padding:62px 0 66px}.hero-grid{display:grid;grid-template-columns:1fr 1.02fr;align-items:center;gap:38px}.eyebrow{color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(2rem,3.5vw,3.1rem);line-height:1.65;letter-spacing:.03em}.hero h1 em{font-style:normal;color:var(--teal);background:linear-gradient(transparent 75%,#dbe9df 75%)}.hero .lead{font-size:16px;max-width:480px;line-height:2}.hero-photo{position:relative;padding:0 0 26px 14px}.hero-photo:before{content:"";position:absolute;inset:26px 0 0 0;background:#e2ebe3;border-radius:8px 80px 8px 8px;transform:translateX(-13px)}.hero-photo img{position:relative;border-radius:7px 70px 7px 7px;aspect-ratio:1.15;object-fit:cover;width:100%}.photo-label{position:absolute;bottom:5px;left:35px;color:var(--ink);background:#fffdf6;padding:10px 21px;font-size:13px;box-shadow:0 6px 20px #173d3910;letter-spacing:.04em}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;padding:13px 23px;background:var(--teal);border:1px solid var(--teal);color:#fff;border-radius:4px;font-weight:700;font-size:15px;text-decoration:none;transition:transform .2s,background .2s}.button:hover{color:#fff;background:#104c47;transform:translateY(-2px)}.button.secondary{background:transparent;color:var(--teal)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:25px}.intro-note{display:flex;gap:20px;font-size:13px;align-items:center;border-top:1px solid var(--line);padding:17px 0}.intro-note span{color:var(--orange);font-weight:700;white-space:nowrap}.intro-note p{margin:0}.section{padding:70px 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#e1e6e0;text-align:center;min-height:118px;background:#f5f5ef}.ad-label{font-size:10px;color:#687670;letter-spacing:.15em}.adsbygoogle{display:block;min-height:90px}.ad-preview{display:flex;min-height:90px;align-items:center;justify-content:center;font-size:12px;color:#71807a;letter-spacing:.07em}.archive-strip{display:grid;grid-template-columns:.65fr 1.35fr;gap:50px;padding:40px;border:1px solid var(--line);border-radius:6px;background:#fff}.archive-strip p{font-size:15px}.archive-list a{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:13px 0;text-decoration:none;font-size:15px}.archive-list a:after{content:"↗"}.breadcrumbs{font-size:12px;color:var(--muted);padding:25px 0}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:9px;padding:0;margin:0}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:9px}.page-head{max-width:850px;margin:16px auto 35px}.page-head h1{font-size:clamp(1.8rem,3.7vw,2.8rem)}.page-head 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.mini-about{font-size:13px;line-height:1.9;padding:25px 0}.sidebar .mini-about strong{font-size:16px;color:var(--ink)}.sources{padding:25px;background:var(--pale);font-size:14px;border-radius:4px}.sources h2{font-size:18px;padding:0;border:none;margin:0 0 12px}.sources ul{padding-left:1.3em}.source-date{font-size:12px}.checklist{background:#fff;border:1px solid var(--line);padding:25px;margin:30px 0;border-radius:5px}.checklist h2{font-size:20px}.check-row{display:flex;align-items:start;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);font-size:16px;cursor:pointer}.check-row input{width:20px;height:20px;accent-color:var(--teal);margin-top:6px;flex:0 0 auto}.check-status{font-size:13px;color:var(--teal);margin-top:15px}.small-button{border:1px solid var(--line);background:#fff;padding:7px 12px;border-radius:4px;font-size:13px;color:var(--ink)}details{padding:20px;border:1px solid var(--line);font-size:15px;background:white;margin:30px 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225px;gap:28px}.hero-grid{gap:25px}}@media(max-width:760px){.wrap{padding:0 22px}.topline{font-size:10px;letter-spacing:.02em}.header-row{min-height:75px;justify-content:space-between}.brand img{width:37px;height:37px}.brand strong{font-size:22px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:75px;left:0;right:0;margin:0;background:var(--paper);padding:20px 25px;border-bottom:1px solid var(--line);box-shadow:0 6px 15px #173d3912}.nav.open{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}.nav a{font-size:14px}.hero{padding:33px 0}.hero-grid{grid-template-columns:1fr;gap:28px}.hero h1{font-size:32px;margin:10px 0 15px}.hero .lead{font-size:15px;max-width:none}.hero-photo{padding-bottom:21px}.hero-photo img{aspect-ratio:1.6;border-radius:5px 50px 5px 5px}.photo-label{font-size:11px;padding:8px 14px;left:24px}.intro-note{align-items:start;gap:12px;font-size:11px}.section{padding:44px 0}.category-grid{grid-template-columns:1fr;gap:13px}.category-card{padding:22px;display:grid;grid-template-columns:45px 1fr;column-gap:17px}.category-icon{grid-row:1/4;width:43px;height:43px;font-size:23px}.category-card h3{font-size:18px;margin:0 0 5px}.category-card p{font-size:13px;margin-bottom:8px}.cards{grid-template-columns:1fr 1fr;gap:27px 17px}.card h3{font-size:16px}.card p{font-size:13px}.card small{font-size:10px}.section-head{gap:12px;align-items:start}.section-head>a{font-size:12px;margin-top:15px}.section-head h2{font-size:24px}.feature{grid-template-columns:1fr;gap:27px}.feature img{max-height:280px}.archive-strip{grid-template-columns:1fr;gap:10px;padding:25px}.article-layout{grid-template-columns:1fr;margin-top:20px}.sidebar{position:static;grid-row:1}.sidebar .mini-about{display:none}.toc{padding:20px}.article section{margin:36px 0}.article h2{font-size:23px;padding-left:14px}.article p{line-height:2.05}.page-head{margin:8px auto 25px}.page-head h1{font-size:29px}.page-head p{font-size:16px}.article-hero{max-height:270px}.meta{font-size:11px}.ad{margin:25px 0;min-height:125px}.ad-preview{min-height:95px}.breadcrumbs{font-size:10px;padding:18px 0}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{font-size:10px;flex-direction:column;gap:6px}.notice{font-size:14px;padding:18px}.search-form{gap:7px}.search-form .button{padding:10px 16px;white-space:nowrap}.support-content h2{font-size:22px}}@media(max-width:380px){.wrap{padding:0 17px}.hero h1{font-size:28px}.brand strong{font-size:20px}.cards{grid-template-columns:1fr}.card img{aspect-ratio:1.85}.button{font-size:14px;padding:12px 18px}.page-head h1{font-size:26px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}@media print{.header,.footer,.ad,.sidebar,.reading-tools{display:none}.article-layout{display:block}.wrap{max-width:none;padding:0}body{background:white;color:black;font-size:12pt}.hero-photo{max-width:400px}}

@media(max-width:760px){.header-row{gap:12px}.brand small{font-size:8px;letter-spacing:.08em}.menu-toggle{white-space:nowrap;flex-shrink:0;min-width:76px}.brand{gap:10px}.hero .eyebrow{font-size:10px;letter-spacing:.1em}}

/* Mobile navigation: right-aligned three-line button, with a clear close state. */
.menu-icon{position:relative;display:block;width:24px;height:20px}
.menu-icon span{position:absolute;left:0;width:24px;height:2px;border-radius:2px;background:currentColor}
.menu-icon span:nth-child(1){top:1px}.menu-icon span:nth-child(2){top:9px}.menu-icon span:nth-child(3){top:17px}
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(1){top:9px;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] .menu-icon span:nth-child(3){top:9px;transform:rotate(-45deg)}
.menu-label{font-size:9px;line-height:1.2;letter-spacing:.02em}
@media(max-width:760px){.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;min-width:54px;width:54px;min-height:52px;padding:7px 4px;margin-left:auto}.header-row>.brand{min-width:0}.nav a{min-height:44px;display:flex;align-items:center}}