:root {
  --ns-main:#1f4f7a;--ns-sub:#edf4f8;--ns-accent:#d97706;--ns-bg:#fff;--ns-text:#222;
  --ns-link:#1d5f9a;--ns-button:#1f4f7a;--ns-button-text:#fff;--ns-header-bg:#fff;
  --ns-footer-bg:#1f2933;--ns-footer-text:#fff;--ns-card-bg:#fff;--ns-border:#d9e1e8;
  --ns-radius:8px;--ns-shadow:0 12px 36px rgba(20,45,65,.08);--ns-max:1180px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ns-text);background:var(--ns-bg);font-family:"Noto Sans JP","Yu Gothic","Hiragino Kaku Gothic ProN",Arial,sans-serif;line-height:1.75}
img{max-width:100%;height:auto}a{color:var(--ns-link);text-decoration:none}a:hover,a:focus{text-decoration:underline}
button,input,select,textarea{font:inherit}button{cursor:pointer}[hidden],.is-hidden{display:none!important}
.skip-link{position:fixed;top:8px;left:8px;z-index:9999;padding:8px 12px;background:#111;color:#fff;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}
.public-header{position:sticky;top:0;z-index:100;background:var(--ns-header-bg);border-bottom:1px solid var(--ns-border)}
.public-header__inner{max-width:var(--ns-max);margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:18px}
.public-brand{min-width:0;display:flex;align-items:center;gap:12px;color:var(--ns-text)}.public-brand:hover{text-decoration:none}
.public-brand__logo{width:52px;height:52px;object-fit:contain}.public-brand__name{font-size:1.05rem;font-weight:800;overflow-wrap:anywhere}
.public-nav{margin-left:auto;display:flex;align-items:center;gap:18px}.public-nav a{color:var(--ns-text);font-size:.93rem;font-weight:700}
.public-nav__submit{padding:9px 16px;border-radius:999px;color:var(--ns-button-text)!important;background:var(--ns-button)}
.public-menu-button{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--ns-border);border-radius:10px;background:var(--ns-card-bg)}
.public-menu-button span{display:block;width:22px;height:2px;background:var(--ns-text);margin:5px auto}
.public-hero{width:100%;max-width:none;margin:1px 0 0;padding:0;overflow:hidden}.public-hero__image{display:block;width:100%;max-height:420px;object-fit:cover;border-radius:0;box-shadow:none}
.public-hero__fallback{min-height:220px;padding:42px 6vw;display:flex;align-items:center;background:linear-gradient(135deg,var(--ns-main),#527f9f);border-radius:0;color:#fff;box-shadow:none}
.public-hero__fallback h1{margin:0;font-size:clamp(1.7rem,4vw,3rem);line-height:1.35}
.public-layout{width:min(calc(100% - 40px),var(--ns-max));margin:28px auto 64px;display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:30px}
.public-main,.public-sidebar{min-width:0}.public-section{margin-bottom:34px}.public-section__head{margin-bottom:16px;display:flex;align-items:end;justify-content:space-between;gap:16px;border-bottom:3px solid var(--ns-main)}
.public-section__title{margin:0;padding:0 0 9px;font-size:clamp(1.25rem,2.5vw,1.7rem)}.public-section__more{margin-bottom:8px;font-size:.9rem;font-weight:700}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.news-card{overflow:hidden;background:var(--ns-card-bg);border:1px solid var(--ns-border);border-radius:calc(var(--ns-radius) + 4px);box-shadow:0 8px 24px rgba(25,55,75,.05)}
.news-card__image-wrap{display:block;aspect-ratio:16/9;background:var(--ns-sub);overflow:hidden}.news-card__image{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}.news-card:hover .news-card__image{transform:scale(1.025)}
.news-card__body{padding:17px}.news-card__meta{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:.8rem;color:#64748b}.news-card__category{color:var(--ns-main);font-weight:800}
.news-card__title{margin:8px 0 7px;font-size:1.08rem;line-height:1.55}.news-card__title a{color:var(--ns-text)}.news-card__company{margin:0;font-size:.86rem;font-weight:700;color:#475569}.news-card__lead{margin:8px 0 0;font-size:.9rem;color:#475569}
.sidebar-card{margin-bottom:20px;padding:18px;background:var(--ns-card-bg);border:1px solid var(--ns-border);border-radius:calc(var(--ns-radius) + 3px)}
.sidebar-card__title{margin:0 0 13px;font-size:1rem;border-left:4px solid var(--ns-main);padding-left:10px}.sidebar-list{list-style:none;margin:0;padding:0}.sidebar-list li+li{border-top:1px solid var(--ns-border)}
.sidebar-list a{display:block;padding:9px 2px;color:var(--ns-text);font-size:.9rem}.sidebar-submit{display:block;margin-bottom:15px;padding:15px;text-align:center;color:var(--ns-button-text);background:var(--ns-button);border-radius:var(--ns-radius);font-weight:800}.sidebar-submit:hover{text-decoration:none;filter:brightness(.96)}
.search-box{display:flex;gap:8px}.search-box input{min-width:0;flex:1;padding:10px 12px;border:1px solid var(--ns-border);border-radius:var(--ns-radius);background:#fff;color:#111}.search-box button{border:0;border-radius:var(--ns-radius);padding:9px 14px;color:var(--ns-button-text);background:var(--ns-button)}
.content-block{margin-bottom:28px;padding:20px;border:1px solid var(--ns-border);border-radius:var(--ns-radius);background:var(--ns-card-bg)}.content-block>:first-child{margin-top:0}.content-block>:last-child{margin-bottom:0}
.breadcrumb{margin:0 0 18px;font-size:.84rem;color:#64748b}.breadcrumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:7px}.breadcrumb li:not(:last-child)::after{content:">";margin-left:7px;color:#94a3b8}
.article-page{padding:clamp(20px,4vw,42px);background:var(--ns-card-bg);border:1px solid var(--ns-border);border-radius:calc(var(--ns-radius) + 5px);box-shadow:var(--ns-shadow)}
.article-page__title{margin:0 0 12px;font-size:clamp(1.65rem,4vw,2.6rem);line-height:1.4}.article-page__subtitle{margin:0 0 18px;color:#475569;font-size:1.12rem}
.article-page__meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:#64748b;font-size:.86rem}.article-page__image{margin:24px 0;width:100%;border-radius:var(--ns-radius)}
.article-page__lead{margin:22px 0;padding:18px 20px;border-left:5px solid var(--ns-main);background:var(--ns-sub);font-size:1.04rem;font-weight:700}
.article-page__comment{margin:24px 0;padding:20px;border:1px solid #f2c98b;background:#fff9ef;border-radius:var(--ns-radius)}.article-page__comment h2{margin-top:0;font-size:1.05rem;color:#9a5a00}
.article-page__body{overflow-wrap:anywhere}.article-page__body h2{margin-top:2em;padding-bottom:.4em;border-bottom:2px solid var(--ns-main)}.article-page__body h3{margin-top:1.7em;border-left:4px solid var(--ns-main);padding-left:.7em}
.article-page__body table{width:100%;border-collapse:collapse}.article-page__body th,.article-page__body td{padding:8px;border:1px solid var(--ns-border)}.article-page__official{margin-top:28px;padding-top:18px;border-top:1px solid var(--ns-border)}
.page-header{margin-bottom:24px}.page-header h1{margin:0 0 8px;font-size:clamp(1.6rem,4vw,2.4rem)}.page-header p{margin:0;color:#64748b}
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:28px}.pagination a,.pagination span{min-width:42px;padding:8px 11px;text-align:center;border:1px solid var(--ns-border);border-radius:var(--ns-radius);background:var(--ns-card-bg)}
.pagination .is-current{color:#fff;background:var(--ns-main);border-color:var(--ns-main)}
.empty-state,.loading-state,.error-state{padding:28px;text-align:center;border:1px dashed var(--ns-border);border-radius:var(--ns-radius);background:var(--ns-sub)}.error-state{color:#9f1239;background:#fff1f2;border-color:#fecdd3}
.public-footer{background:var(--ns-footer-bg);color:var(--ns-footer-text)}.public-footer__inner{max-width:var(--ns-max);margin:0 auto;padding:34px 20px;text-align:center}.public-footer__logo{max-width:170px;max-height:70px;object-fit:contain}
.public-footer__links{margin:18px 0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px}.public-footer__links a{color:var(--ns-footer-text)}.public-footer__copy{margin:0;font-size:.84rem;opacity:.86}
.toast-container{position:fixed;right:18px;bottom:18px;z-index:10000;display:grid;gap:8px}.toast{width:min(360px,calc(100vw - 36px));padding:13px 15px;border-radius:10px;color:#fff;background:#334155;box-shadow:0 12px 32px rgba(0,0,0,.2)}
.toast--success{background:#166534}.toast--error{background:#b91c1c}
.modal-backdrop{position:fixed;inset:0;z-index:5000;padding:20px;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.66)}
.modal-panel{width:min(850px,100%);max-height:90vh;overflow:auto;background:#fff;color:#1f2937;border-radius:14px;box-shadow:0 30px 80px rgba(0,0,0,.28)}
.modal-panel__head{position:sticky;top:0;padding:16px 20px;display:flex;gap:12px;align-items:center;background:#fff;border-bottom:1px solid #e2e8f0}.modal-panel__head h2{margin:0;flex:1;font-size:1.15rem}.modal-panel__body{padding:22px}.modal-close{border:0;background:#eef2f7;border-radius:8px;padding:8px 11px}
@media(max-width:920px){.public-layout{grid-template-columns:1fr}.public-sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.sidebar-card{margin:0}}
@media(max-width:760px){.public-header__inner{padding:9px 14px}.public-brand__logo{width:42px;height:42px}.public-nav{display:none;position:absolute;top:100%;left:0;right:0;padding:14px;flex-direction:column;align-items:stretch;background:var(--ns-header-bg);border-bottom:1px solid var(--ns-border)}.public-nav.is-open{display:flex}.public-nav a{padding:8px}.public-menu-button{display:block}.public-layout{width:auto;margin-left:14px;margin-right:14px;padding-left:0;padding-right:0}.public-hero{width:100%;margin-left:0;margin-right:0;padding-left:0;padding-right:0}.news-grid{grid-template-columns:1fr}.public-sidebar{grid-template-columns:1fr}.sidebar-submit{margin-bottom:5px}.article-page{padding:20px 16px}.public-footer__links{flex-direction:column}}
.layout-hidden{display:none!important}.ad-card__label{display:block;margin-bottom:6px;color:var(--muted-color,#64748b);font-size:.72rem}.ad-card__image{display:block;width:100%;height:auto;border-radius:8px}.sidebar-article-list{display:grid;gap:0}.sidebar-article-link{display:grid;grid-template-columns:76px minmax(0,1fr);gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid var(--border-color,#d9e1e8);color:var(--ns-text);font-size:.88rem;line-height:1.45}.sidebar-article-link:first-child{padding-top:0}.sidebar-article-link:last-child{padding-bottom:0;border-bottom:0}.sidebar-article-link:hover,.sidebar-article-link:focus{text-decoration:none}.sidebar-article-thumb{display:block;width:76px;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--ns-border);border-radius:6px;background:var(--ns-sub)}.sidebar-article-thumb picture{display:block;width:100%;height:100%}.sidebar-article-thumb__image{display:block;width:100%;height:100%;object-fit:cover}.sidebar-article-link__title{min-width:0;overflow-wrap:anywhere;font-weight:700}.sidebar-article-link:hover .sidebar-article-link__title,.sidebar-article-link:focus .sidebar-article-link__title{text-decoration:underline}
@media(min-width:769px){.layout-hide-desktop{display:none!important}}@media(max-width:768px){.layout-hide-mobile{display:none!important}}

/* メンテナンス画面 */
.maintenance-body{min-height:100vh;background:var(--ns-sub)}
.maintenance-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:28px}
.maintenance-card{width:min(100%,720px);padding:42px 38px;text-align:center;background:var(--ns-card);border:1px solid var(--ns-border);border-radius:var(--ns-radius);box-shadow:0 18px 45px rgba(15,23,42,.08)}
.maintenance-site-name{margin:0 0 12px;color:var(--ns-main);font-weight:800}
.maintenance-card h1{margin:0 0 22px;font-size:clamp(1.6rem,4vw,2.4rem)}
.maintenance-message{margin:0;white-space:pre-wrap;line-height:1.9;color:var(--ns-muted)}
.maintenance-end{margin:24px 0 0;font-weight:700}
.maintenance-link{margin:28px 0 0}
.maintenance-link a{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 22px;color:#fff;background:var(--ns-button);border-radius:var(--ns-radius);font-weight:800}
@media(max-width:760px){.maintenance-shell{padding:16px}.maintenance-card{padding:30px 20px}}