:root{--color-bg: #ffffff;--color-bg-alt: #f5f7fa;--color-text: #000000;--color-text-muted: #5b6472;--color-primary: #006EB0;--color-primary-dark: #005088;--color-accent: #006EB0;--color-border: #e3e7ec;--color-footer-bg: #1C50AC;--color-footer-text: #ffffff;--font-sans: NotoSansJP, Verdana, Roboto, "Droid Sans", "游ゴシック", YuGothic, "Yu Gothic", メイリオ, Meiryo, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "ＭＳ Ｐゴシック", sans-serif;--font-serif: "游明朝", "Yu Mincho", "Hiragino Mincho ProN", "Hiragino Mincho Pro", serif;--content-max: 1180px;--content-narrow: 860px;--shadow-soft: 0 2px 8px rgba(0, 110, 176, .08)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;font-family:var(--font-sans);color:var(--color-text);line-height:1.75;font-size:16px}body{margin:0;background:var(--color-bg)}a{color:var(--color-primary);text-decoration:none;transition:color .15s ease}a:hover{color:var(--color-accent);text-decoration:underline}img{max-width:100%;height:auto;display:block}main{min-height:60vh}h1,h2,h3,h4{font-weight:700;line-height:1.4;color:var(--color-primary);margin:2em 0 .8em;letter-spacing:.02em}h1{font-size:2.1rem}h2{font-size:1.6rem}h3{font-size:1.25rem}h4{font-size:1.08rem}p{margin:0 0 1.2em}.site-header{background:var(--color-bg);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-soft);position:sticky;top:0;z-index:50}.site-header__inner{max-width:1320px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:20px}.site-header__brand img{height:50px;width:auto;display:block}.site-nav{flex:1;display:flex;justify-content:flex-end}.site-nav__list{list-style:none;margin:0;padding:0;display:flex;gap:16px;align-items:center}.site-nav__item{position:relative}.site-nav__link,.site-nav__folder-title{display:inline-block;padding:8px 2px;color:var(--color-text);font-size:.82rem;font-weight:500;white-space:nowrap;background:none;border:none;cursor:pointer;font-family:inherit}.site-nav__link:hover,.site-nav__folder-title:hover{color:var(--color-primary);text-decoration:none}.site-nav__folder{position:absolute;top:100%;left:50%;transform:translate(-50%);background:#fff;border:1px solid var(--color-border);box-shadow:var(--shadow-soft);min-width:210px;padding:8px 0;display:none;z-index:60}.site-nav__item:hover .site-nav__folder,.site-nav__item:focus-within .site-nav__folder{display:block}.site-nav__folder a{display:block;padding:8px 18px;color:var(--color-text);font-size:.88rem;white-space:nowrap}.site-nav__folder a:hover{background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none}.site-nav__cta{margin-left:8px}.btn{display:inline-block;padding:10px 22px;border-radius:3px;font-weight:600;font-size:.9rem;text-decoration:none;border:1px solid var(--color-primary);transition:background .15s ease,color .15s ease}.btn--outline{color:var(--color-primary);background:#fff}.btn--outline:hover{background:var(--color-primary);color:#fff;text-decoration:none}.btn--filled{background:var(--color-primary);color:#fff}.btn--filled:hover{background:var(--color-primary-dark);color:#fff;text-decoration:none}.btn--header-cta{background:var(--color-footer-bg);color:#fff;border:1px solid var(--color-footer-bg);padding:12px 20px;border-radius:0;font-size:.85rem;font-weight:700;letter-spacing:.05em;white-space:nowrap}.btn--header-cta:hover{background:var(--color-primary);border-color:var(--color-primary);color:#fff;text-decoration:none}.page{max-width:var(--content-max);margin:0 auto;padding:48px 24px 80px}.page__narrow{max-width:var(--content-narrow);margin:0 auto}.section{padding:56px 0;border-top:1px solid var(--color-border)}.section:first-of-type{border-top:none}.section--tinted{background:var(--color-bg-alt);margin:56px calc(50% - 50vw) 0;padding:56px calc(50vw - 50% + 24px);border-top:none}.eyebrow{color:var(--color-accent);font-size:.8rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;margin:0 0 .6em}.lead{font-size:1.08rem;color:var(--color-text)}.site-footer{background:var(--color-footer-bg);color:var(--color-footer-text);padding:56px 24px 24px;margin-top:80px}.site-footer a{color:var(--color-footer-text)}.site-footer a:hover{color:#a9c5ec;text-decoration:underline}.site-footer__inner{max-width:var(--content-max);margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:40px 32px}.site-footer__col h4{color:var(--color-footer-text);font-size:.95rem;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.2)}.site-footer__col ul{list-style:none;margin:0;padding:0}.site-footer__col li{margin-bottom:6px;font-size:.88rem}.site-footer__bottom{max-width:var(--content-max);margin:40px auto 0;padding-top:24px;border-top:1px solid rgba(255,255,255,.15);text-align:center;font-size:.82rem;line-height:1.9;color:#ffffffd9}.site-footer__meta-links{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 16px;margin-bottom:12px}.site-footer__meta-links a{font-size:.82rem;color:#ffffffd9}@media(max-width:900px){.site-header__inner{padding:12px 16px}.site-nav{display:none}h1{font-size:1.7rem}h2{font-size:1.35rem}.page{padding:32px 16px 56px}.section{padding:40px 0}}