:root{--teal:#003538;--gray-bar:#828282;--text:#666;--heading:#333;--link:#2ea3f2;--sans:"Open Sans", Arial, sans-serif;--jp:"Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif}*,:before,:after{box-sizing:border-box}html,body{margin:0}body{font-family:var(--sans);color:var(--text);-webkit-font-smoothing:antialiased;background:#fff;font-size:16px;line-height:1.9}[lang=ja]{font-family:var(--jp)}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.header{z-index:50;position:sticky;top:0}.topbar{background:var(--gray-bar);justify-content:flex-end;gap:16px;padding:6px 32px;font-size:13px;line-height:1.6;display:flex}.topbar a{color:#ffffffd9}.topbar a:hover,.topbar a.active{color:#fff;text-decoration:none}.mainbar{background:var(--teal);align-items:center;gap:22px;height:56px;padding:0 32px;display:flex;box-shadow:0 1px #0000001a}.logo{margin-right:auto;display:flex}.logo img{width:auto;height:47px;display:block}.nav{gap:22px;display:flex}.nav a{color:#fff9;font-size:14px;font-weight:600;transition:opacity .3s}.nav a:hover{opacity:.7;text-decoration:none}.nav a.active{color:#fff}.nav__ja{display:none}.icon-btn{cursor:pointer;background:0 0;border:0;place-items:center;width:32px;height:32px;padding:0;display:grid}.icon-btn svg{fill:none;stroke:#fffc;stroke-width:1.8px;width:18px;height:18px}.menu-btn{display:none}.search{flex:1;max-width:640px;display:flex}.search input{font:inherit;color:#fff;background:0 0;border:0;border-bottom:1px solid #ffffff80;outline:none;flex:1;padding:6px 10px;font-size:16px}.search input::placeholder{color:#fff9}.search button{color:#fff;cursor:pointer;background:0 0;border:0;font-size:26px;line-height:1}.main{min-height:calc(100vh - 220px)}.page{max-width:1080px;margin:0 auto;padding:56px 16px 40px}.page__title,.prose h1{color:var(--heading);margin:0 0 16px;font-size:40px;font-weight:400;line-height:1.3}.prose h2{color:var(--heading);margin:1.4em 0 .1em;font-size:36px;font-weight:400;line-height:1.3}.prose h3{color:var(--heading);margin:0 0 .4em;font-size:22px;font-weight:400;line-height:1.4}.prose h4{color:var(--heading);margin:0 0 .4em;font-size:18px;font-weight:600;line-height:1.4}.prose p{margin:0 0 24px}.prose ol,.prose ul{margin:0 0 24px;padding-left:1.6em}.prose table{border-collapse:collapse;max-width:100%;margin:0 0 24px;font-size:15px;display:block;overflow-x:auto}.prose th,.prose td{text-align:left;vertical-align:top;border:1px solid #e2e2e2;padding:6px 12px}.prose th{background:#f7f7f7;font-weight:600}.prose thead:not(:has(th:not(:empty))){display:none}.page__image{width:100%;margin:0 0 32px;display:block}.prose img{margin:0 0 24px;display:block}.prose img.align-left{float:left;margin:6px 16px 16px 0}.prose img.align-right{float:right;margin:6px 0 16px 16px}.prose:after{content:"";clear:both;display:block}.prose blockquote{border-left:4px solid var(--teal);margin:0 0 24px;padding-left:20px;font-style:italic}.prose sup a{font-size:.85em}.prose .footnotes{border-top:1px solid #eee;margin-top:48px;padding-top:16px;font-size:14px}.prose .footnotes h2{margin-top:0;font-size:18px}.pager{border-top:1px solid #eee;justify-content:space-between;margin-top:48px;padding-top:20px;font-weight:600;display:flex}.results{padding:0;list-style:none}.results li{margin-bottom:24px}.results a{font-size:20px}.results p{margin:4px 0 0}.footer{justify-content:space-between;align-items:center;max-width:1080px;margin:0 auto;padding:24px 16px 40px;display:flex}.footer p{margin:0}.social{gap:8px;margin:0;padding:0;list-style:none;display:flex}.social a{border-radius:3px;place-items:center;width:32px;height:32px;display:grid}.social svg{fill:#fff;width:18px;height:18px}.social--facebook{background:#3b5998}@media (width<=980px){.topbar{display:none}.mainbar{gap:8px;height:64px;padding:0 16px;position:relative}.menu-btn{display:grid}.nav{border-top:3px solid var(--teal);background:#fff;flex-direction:column;gap:0;padding:8px 0;display:none;position:absolute;top:64px;left:0;right:0;box-shadow:0 6px 12px #0000001a}.nav.is-open{display:flex}.nav a{color:var(--heading);padding:10px 20px}.nav a.active{color:var(--link)}.nav__ja{border-top:1px solid #eee;flex-direction:column;margin-top:6px;padding-top:6px;display:flex}.page{padding-top:36px}.page__title,.prose h1{font-size:30px}.prose h2{font-size:26px}}@media (width<=600px){.prose img.align-left,.prose img.align-right{float:none;margin:0 0 24px}.footer{flex-direction:column;gap:12px}}
