:root { --orange:#d94d00; --orange-dark:#a83800; --orange-light:#fff0df; --yellow:#ffd44d; --teal:#087f78; --ink:#2f241e; --sub:#65584f; --surface:#fffdf8; --border:#d8c9bc; --border-light:#eadfd5; --max:1200px; --radius:12px; }
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fffaf3;font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.9}img{max-width:100%}a{color:#075ea8;text-decoration:underline;text-underline-offset:.18em}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #111;outline-offset:3px;background:#fff29a}.skip-link{position:fixed;z-index:99;top:8px;left:8px;padding:8px 14px;background:#fff;transform:translateY(-150%)}.skip-link:focus{transform:none}.site-header{background:#fff;border-top:6px solid var(--orange);border-bottom:1px solid var(--border);box-shadow:0 2px 10px #5e2f1114}.header-inner,.footer-inner{width:min(calc(100% - 48px),var(--max));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:32px;min-height:88px}.logo{display:block;width:270px;line-height:0}.logo img{width:100%;height:auto}.nav,.footer-nav{display:flex;flex-wrap:wrap;gap:8px 24px}.nav a,.footer-nav a{color:var(--ink);font-weight:700;text-decoration:none;padding:10px 4px;border-bottom:3px solid transparent}.nav a:hover,.nav a[aria-current="page"]{color:var(--orange-dark);border-color:var(--orange)}.hero{width:100%;aspect-ratio:12/5;background:url("images/mv-top.webp") center/cover no-repeat}.subhero{width:100%;aspect-ratio:2458/640;max-height:320px;background:url("images/mv-sub.webp") center/cover no-repeat}.breadcrumbs{width:min(calc(100% - 48px),var(--max));margin:22px auto}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:4px 10px;margin:0;padding:0;list-style:none;font-size:14px}.breadcrumbs li:not(:last-child)::after{content:">";margin-left:10px;color:var(--sub)}.layout{width:min(calc(100% - 48px),var(--max));margin:40px auto 96px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px}.article{min-width:0}.page-heading{margin:0 0 40px;font-size:clamp(30px,4vw,46px);line-height:1.4;letter-spacing:.02em}.standalone-heading,.article-header{width:min(calc(100% - 48px),var(--max));margin:40px auto}.article-header .page-heading{max-width:900px}.article h2{display:flex;align-items:flex-end;gap:16px;margin:72px 0 24px;color:var(--orange-dark);font-size:clamp(25px,3vw,34px);line-height:1.5}.article h2::before{content:"";flex:0 0 88px;width:88px;height:88px;background:url("images/h2-illustration.webp") center/contain no-repeat}.article>h2:first-child{margin-top:0}.article h3{margin:48px 0 16px;padding:10px 14px;color:#563019;background:var(--orange-light);border-left:6px solid var(--orange);font-size:23px;line-height:1.55;border-radius:0 8px 8px 0}.article h4{margin:32px 0 12px;font-size:20px}.article p{margin:0 0 24px}.article ul,.article ol{margin:24px 0 32px;padding:22px 28px 22px 50px;background:#fff5e8;border-left:4px solid var(--orange);border-radius:0 8px 8px 0}.article li+li{margin-top:7px}.article strong{font-weight:700;background:linear-gradient(transparent 65%,#ffe28a 65%)}.article hr{display:none}.table-wrap{max-width:100%;margin:24px 0 40px;overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff}.article table{width:100%;min-width:720px;border-collapse:collapse;line-height:1.65}.article th,.article td{padding:14px 16px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.article th{background:#ffe4bf;color:#502600}.sidebar{min-width:0}.side-card{margin-bottom:24px;padding:24px;background:#fff;border:1px solid var(--border);border-top:5px solid var(--orange);border-radius:var(--radius);box-shadow:0 5px 18px #5e2f110f}.side-title{margin:0 0 16px;font-size:20px}.side-links{margin:0;padding:0;list-style:none}.side-links li+li{border-top:1px solid var(--border-light)}.side-links a{display:block;padding:12px 0;font-weight:700}.toc-disclosure summary{display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;color:var(--orange-dark);font-weight:700;font-size:18px}.toc-disclosure summary::after{content:"+";display:grid;place-items:center;width:28px;height:28px;flex:0 0 auto;color:#fff;background:var(--orange);border-radius:50%;font-size:22px}.toc-disclosure[open] summary::after{content:"−"}.toc{margin-top:16px}.toc ol{margin:0;padding-left:22px}.toc li+li{margin-top:8px}.toc a{font-size:14px;line-height:1.55}.mobile-toc{display:none}.article-list-wrap{width:min(calc(100% - 48px),var(--max));margin:40px auto 96px;padding:clamp(24px,5vw,48px);background:#fff;border:1px solid var(--border);border-radius:var(--radius)}.article-list{margin:0;padding:0;list-style:none}.article-list li{border-bottom:1px solid var(--border-light)}.article-list li:first-child{border-top:1px solid var(--border-light)}.article-list a{display:flex;align-items:center;min-height:72px;padding:18px 8px;font-size:18px;font-weight:700;line-height:1.6}.about-list{display:grid;grid-template-columns:180px 1fr;margin:24px 0 40px;border-top:1px solid var(--border)}.about-list dt,.about-list dd{margin:0;padding:16px;border-bottom:1px solid var(--border)}.about-list dt{font-weight:700;background:#fff0df}.about-list dd{background:#fff}.footer{color:#fff;background:#50301d;border-top:8px solid var(--yellow)}.footer .logo{filter:drop-shadow(0 2px 2px #0004)}.footer-nav a{color:#fff}.copyright{text-align:center;padding:16px;border-top:1px solid #ffffff30;font-size:13px}
@media(max-width:767px){body{font-size:16px}.header-inner{width:calc(100% - 32px);min-height:72px;gap:14px;align-items:flex-start;padding:12px 0}.logo{width:180px}.nav{justify-content:flex-end;gap:2px 12px}.nav a{padding:6px 1px;font-size:13px}.hero{aspect-ratio:12/5}.subhero{aspect-ratio:2458/640}.breadcrumbs{width:calc(100% - 32px);margin:16px auto}.layout{width:calc(100% - 32px);margin:28px auto 64px;display:block}.page-heading{margin-bottom:32px;font-size:30px}.standalone-heading,.article-header{width:calc(100% - 32px);margin:28px auto}.article h2{gap:10px;margin-top:56px;font-size:25px}.article h2::before{flex-basis:62px;width:62px;height:62px}.article h3{margin-top:40px;font-size:20px}.article ul,.article ol{padding:18px 18px 18px 40px}.sidebar{margin-top:48px}.article-header+.layout{margin-top:0}.mobile-toc{display:block;margin:24px 0;padding:18px 20px;background:#fff;border:1px solid var(--border);border-top:4px solid var(--orange);border-radius:var(--radius)}.sidebar .toc-disclosure{display:none}.article-list-wrap{width:calc(100% - 32px);margin:28px auto 64px;padding:16px 20px}.article-list a{min-height:64px;padding:16px 4px;font-size:17px}.about-list{grid-template-columns:1fr}.about-list dt{padding-bottom:6px;border-bottom:0}.about-list dd{padding-top:6px}.footer-inner{width:calc(100% - 32px);padding:24px 0;align-items:flex-start;flex-direction:column}.footer-nav{gap:4px 16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}
.company-image{max-width:100%;margin:20px 0 32px}.company-image img{display:block;width:100%;height:auto;border:1px solid var(--border);border-radius:var(--radius)}.company-image figcaption{margin-top:8px;color:var(--sub);font-size:14px;line-height:1.6}
.hero{aspect-ratio:auto;min-height:440px}.layout{width:min(calc(100% - 64px),var(--max));grid-template-columns:minmax(0,9fr) minmax(248px,3fr);gap:48px;align-items:start}.toc-disclosure summary{min-height:56px;padding:14px 20px;line-height:1.5;list-style:none}.toc-disclosure summary::-webkit-details-marker{display:none}.toc-disclosure summary::marker{content:""}.toc-disclosure summary::after{line-height:1;font-weight:400}
@media(max-width:767px){.hero{aspect-ratio:auto;min-height:360px}.layout{width:calc(100% - 32px);grid-template-columns:1fr;gap:32px}}
.company-info-block{margin:24px 0;padding:20px 24px;background:#fff5e8;border:1px solid var(--border-light);border-radius:var(--radius)}.company-info-block h4{margin-top:0}.company-info-block>:last-child{margin-bottom:0}.company-info-block ul{margin-top:12px}.company-official-block{background:#fff;border-left:4px solid var(--orange)}.official-site-link{overflow-wrap:anywhere}.official-site-link::after{content:" ↗";display:inline-block;color:var(--orange-dark);font-weight:700;text-decoration:none}
.menu-toggle{display:none}@media(max-width:767px){.site-header{position:relative;z-index:30}.header-inner{position:relative;align-items:center;padding:12px 0}.menu-toggle{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;gap:7px;min-width:92px;min-height:48px;padding:6px 10px;color:var(--ink);background:#fff;border:2px solid var(--orange);border-radius:8px;font:inherit;font-size:13px;font-weight:700;cursor:pointer}.menu-toggle:hover{background:var(--orange-light)}.menu-toggle-icon{position:relative;display:block;width:26px;height:20px}.menu-toggle-icon span{position:absolute;left:0;display:block;width:26px;height:3px;background:var(--orange-dark);border-radius:3px;transition:transform .2s ease,opacity .2s ease,top .2s ease}.menu-toggle-icon span:nth-child(1){top:1px}.menu-toggle-icon span:nth-child(2){top:9px}.menu-toggle-icon span:nth-child(3){top:17px}.menu-open .menu-toggle-icon span:nth-child(1){top:9px;transform:rotate(45deg)}.menu-open .menu-toggle-icon span:nth-child(2){opacity:0}.menu-open .menu-toggle-icon span:nth-child(3){top:9px;transform:rotate(-45deg)}.site-header.menu-ready .nav{display:none}.site-header.menu-ready.menu-open .nav{position:absolute;z-index:40;top:100%;left:0;display:grid;width:100%;padding:8px 16px 16px;gap:0;background:#fff;border:1px solid var(--border-light);border-top-color:var(--border);border-radius:0 0 10px 10px;box-shadow:0 10px 20px #5e2f1129}.site-header.menu-ready.menu-open .nav a{display:flex;justify-content:flex-start;min-width:0;min-height:56px;padding:14px 12px;border-bottom:1px solid var(--border-light);font-size:16px}}