:root{--blue:#3d86e0;--green:#02ad9c;--text:#333}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:15px;line-height:1.9;background:#fff}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #164d8e;outline-offset:5px}a{color:#2864aa}header{border-bottom:1px solid #eee;background:#fff}.header-inner{max-width:1360px;padding:20px 36px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:28px}.brand{display:block;width:390px;max-width:45%}.logo{display:block;width:100%;height:48px;fill:#222}nav{display:flex;gap:20px;align-items:center}nav button{background:none;border:0;font-size:14px;white-space:nowrap;padding:10px 0}nav button:hover{color:var(--blue)}.hero{padding:56px 24px;background:#f5f5f5}.banners{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.banner{border:0;background:#fff;padding:0;border-radius:20px;overflow:hidden;aspect-ratio:1;transition:transform .2s}.banner:hover{transform:translateY(-4px)}.banner img{display:block;width:100%;height:100%;object-fit:cover}.wrap{width:min(1080px,calc(100% - 48px));margin:auto}.intro{text-align:center;padding:58px 0 28px}.eyebrow{color:#487ebc;letter-spacing:.15em;font-size:14px}h1{font-size:26px;font-weight:500;letter-spacing:.07em;line-height:1.65;margin:10px 0 18px}.intro>p:not(.eyebrow){color:#666}.intro-actions{display:flex;justify-content:center;gap:16px;margin:28px 0}.pill{padding:12px 32px;border:1px solid #9fbfe6;background:#edf5ff;border-radius:5px;color:#2864aa;min-width:235px}.pill.green{border-color:#8acfc6;background:#effaf7;color:#187b70}.projects{padding:38px 0 76px}h2{font-size:16px;font-weight:400;text-align:center;line-height:1.7;margin:0 0 40px}h2>span{display:block;font:30px Georgia,"Times New Roman",serif;letter-spacing:.02em;margin-bottom:10px}h2:after{content:"";display:block;width:52px;height:2px;background:#555;margin:21px auto 0}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{border:1px solid #dce4ed;background:white;border-radius:8px;position:relative;padding:29px 24px 34px;text-align:center;min-height:220px;transition:background .15s,border-color .15s}.card:hover{background:#f1f7ff;border-color:var(--blue)}.card .icon{width:55px;height:55px;fill:var(--blue);margin-bottom:8px}.card h3{font-size:19px;font-weight:500;margin:3px 0 6px}.card p{font-size:13px;line-height:1.7;color:#666;margin:0}.arrow{position:absolute;right:16px;bottom:8px;color:var(--blue);font-size:22px}.guide{background:#f5f5f5;padding:60px 0}.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.guide-grid button{border:1px solid #ddd;background:white;padding:21px 10px;border-radius:5px}.guide-grid button:hover{color:var(--blue);border-color:var(--blue)}.contact{text-align:center;padding:70px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px auto;max-width:800px}.contact-grid>div{background:#f1f6fc;border-radius:8px;padding:22px}.contact-grid h3{margin:0;font-weight:500}.contact-grid a{font-size:29px;color:#326fbc;text-decoration:none;white-space:nowrap}.contact-grid p{font-size:12px;margin:6px 0}footer{background:#f5f5f5;padding:36px 0;color:#666;font-size:12px}.footer-brand{font-size:20px;color:#333;margin:0 0 14px}.mobile{display:none}dialog{padding:0;border:0;border-radius:10px;max-width:740px;width:calc(100% - 32px);max-height:88dvh;box-shadow:0 10px 80px #0003;overscroll-behavior:contain}dialog::backdrop{background:#172c44a6}.modal-bar{position:sticky;top:0;z-index:2;display:flex;justify-content:space-between;align-items:center;background:#f2f6fa;border-bottom:1px solid #e0e7ef;padding:13px 24px;color:#66758a;font-size:12px}.modal-bar button{border:1px solid #b9c9da;background:white;padding:7px 16px;border-radius:4px;font-size:13px}.modal-content{padding:34px 42px 42px}.modal-content h2{text-align:left;font-size:25px;color:#397ac8;font-weight:500;margin-bottom:23px}.modal-content h2:after{margin:16px 0 0;background:#8bb3e3}.modal-content h3{font-size:16px;font-weight:500}.modal-content p{line-height:2}#modal-summary{white-space:pre-line;font-size:17px}.modal-contact{background:#f0f6fc;padding:20px 24px;margin-top:28px;border-radius:5px}.modal-contact h3{margin:0 0 10px}.modal-contact p{font-size:12px;color:#666;margin:7px 0 0}.phone{font-size:26px;text-decoration:none;display:block;color:#2e6db9;white-space:nowrap}.filelink{display:block;border-bottom:1px solid #ddd;padding:12px 0;font-size:14px;overflow-wrap:anywhere}.note{font-size:12px;color:#666}body.modal-open{overflow:hidden}@media(max-width:1100px){.header-inner{display:block;text-align:center}.brand{max-width:100%;margin:0 auto 10px}nav{justify-content:center;gap:20px}.banners{gap:20px}}@media(max-width:650px){body{font-size:14px}.header-inner{padding:16px}.brand{width:340px}nav{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}nav button{font-size:12px;padding:7px 0}.hero{padding:25px 16px}.banners{gap:12px;grid-template-columns:repeat(3,minmax(0,1fr))}.banner{border-radius:9px}.wrap{width:calc(100% - 32px)}.intro{padding:32px 0 12px}h1{font-size:21px}.mobile{display:inline}.intro-actions{gap:10px}.pill{min-width:0;flex:1;font-size:12px;padding:12px 5px}.project-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{padding:22px 12px 32px;min-height:200px}.card h3{font-size:17px}.card p{font-size:12px}.card .icon{width:45px;height:45px}.guide-grid{grid-template-columns:1fr 1fr;gap:10px}.guide-grid button{font-size:13px}.contact-grid{grid-template-columns:1fr}.contact{padding:45px 0}.modal-content{padding:25px 22px}.modal-content h2{font-size:22px}.modal-bar{padding:10px 16px}.modal-contact{padding:18px}.phone{font-size:23px}h2>span{font-size:27px}.projects{padding-bottom:45px}}
/* 簡易ページ：公式サイト同様の小さなアイコンと文字による一覧 */
.project-grid{max-width:880px;margin:auto;gap:0 30px}.card{display:grid;grid-template-columns:35px 1fr 14px;align-items:center;gap:0 10px;border:0;border-radius:0;min-height:0;padding:18px 0;text-align:left;background:none;transition:none}.card:hover{background:none;color:var(--blue);border:0}.card .icon{width:30px;height:30px;margin:0}.card h3{font-size:20px;font-weight:400;margin:0;white-space:nowrap}.card p{display:none}.card .arrow{position:static;line-height:1;font-size:16px}.intro{padding:35px 0 10px}.intro h1{font-size:21px}.projects{padding-top:40px}.news{padding:35px 0 40px}.news-list{max-width:680px;margin:0 auto;padding:0;list-style:none}.news-list li{border-bottom:1px solid #ddd}.news-list li:first-child{border-top:1px solid #ddd}.news-list button{display:flex;gap:16px;align-items:baseline;width:100%;border:0;padding:14px 8px;background:none;text-align:left;font-size:14px;line-height:1.8}.news-date{white-space:nowrap;font-size:13px;color:#666}.news-list button:hover{color:var(--blue)}.news-image{width:100%;height:auto;display:block}.guide-grid{grid-template-columns:repeat(3,1fr)}@media(max-width:800px){.project-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px}.card h3{font-size:17px}.card{grid-template-columns:28px 1fr 12px;gap:0 6px}.card .icon{width:25px;height:25px}}@media(max-width:480px){.project-grid{grid-template-columns:1fr;max-width:300px}.card{padding:12px 0}.card h3{font-size:19px}.news-list button{display:block}.news-date{display:block;margin-bottom:3px}.guide-grid{grid-template-columns:1fr}.news{padding-top:20px}}
/* メンテナンス中の簡易案内 */
.maintenance{background:#f5f5f5;border-bottom:1px solid #e5e5e5;padding:44px 0 32px}.maintenance .wrap{max-width:980px}.maintenance h1{font-size:25px;margin:0 0 20px;color:#333;letter-spacing:.02em}.maintenance p{font-size:15px;margin:12px 0;line-height:2}.intro-title{font-size:20px;margin:8px 0}.slide-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:980px;padding:10px 0 20px}.slide-link{background:#fff;border:1px solid #ccd7e3;border-radius:3px;padding:12px 10px;font-size:14px;color:#385f90;text-align:center}.slide-link:hover{background:#f3f7fc}.screenshot-button{display:block;margin:24px 0 0;padding:12px 20px;border:1px solid #9ab7d8;border-radius:3px;background:#f1f6fc;color:#3269aa;font-size:14px}.screenshot-button[hidden],#screenshot-panel[hidden]{display:none}#screenshot-panel{margin-top:24px;scroll-margin-top:78px}#page-screenshot{display:block;width:100%;height:auto;border:1px solid #e2e2e2}dialog.with-screenshot{max-width:1080px}.with-screenshot .modal-content{padding-left:26px;padding-right:26px}@media(max-width:650px){.maintenance{padding:28px 0 22px}.maintenance h1{font-size:21px}.slide-links{grid-template-columns:1fr 1fr}.slide-link{font-size:12px}.intro-title{font-size:18px}}
/* 最新広報誌：表紙とPDFリンクのみの簡素な配置 */
.publications{padding:55px 0 35px}.publication-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px;max-width:980px;margin:auto}.publication{text-align:center}.publication-cover{display:inline-block;line-height:0}.publication-cover img{width:auto;height:200px;max-width:100%;object-fit:contain}.publication h3{font-size:15px;font-weight:400;line-height:1.8;margin:18px 0 5px}.publication p{font-size:12px;color:#666;margin:5px 0 15px}.publication-actions{display:flex;justify-content:center;gap:8px;flex-wrap:wrap}.publication-actions a{display:inline-block;padding:6px 12px;border:1px solid #bacce0;border-radius:3px;font-size:12px;text-decoration:none;color:#3269aa;background:white}.publication-actions a:hover{background:#f1f6fc}.publication small{display:block;margin-top:9px;font-size:11px;color:#777}@media(max-width:650px){.publication-list{grid-template-columns:1fr;gap:36px}.publication{border-bottom:1px solid #eee;padding-bottom:28px}.publication:last-child{border:0}.publication h3{margin-top:12px}}
.header-inner .brand{margin-bottom:0}.slide-links>.slide-link:first-child{grid-column:1/-1}.pickup-box{max-width:680px;margin:0 auto 28px;border:2px solid #a9d4ef;border-radius:12px;padding:13px 18px;background:#fbfdff}.pickup-label{color:#467ca7;font-size:14px;margin:0 0 5px}.pickup-box .news-list li:first-child{border-top:0}.pickup-box .news-list li:last-child{border-bottom:0}.pickup-box .news-date{display:none}.sns{padding:15px 0 45px}.sns h2{margin-bottom:25px}.sns-buttons{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.sns-buttons a{font-size:14px;padding:10px 24px;border:1px solid #b7c9de;border-radius:3px;text-decoration:none;background:white;color:#3269aa}.sns-buttons a:hover{background:#f1f6fc}
.slide-links>.slide-link:first-child{grid-column:auto}.intro-actions{flex-wrap:wrap}.sonpo-contact{font-size:12px;color:#666;margin-top:14px}.sonpo-contact a{font-size:14px;color:#426b9b;text-decoration:none}@media(max-width:650px){.intro-actions{flex-wrap:nowrap}.intro-actions .pill{font-size:11px;min-width:0;padding:11px 5px}}
.download-group{margin-top:28px}.download-group>h3{padding:8px 12px;border-left:3px solid #78a8d9;background:#f2f6fa;margin-bottom:0}.download-item{padding:13px 0;border-bottom:1px solid #e4e4e4}.download-item>p{font-size:14px;margin:0 0 8px;line-height:1.8}.download-formats{display:flex;flex-wrap:wrap;gap:8px}.download-formats .filelink{display:inline-block;border:1px solid #b9cbe0;border-radius:3px;padding:4px 12px;font-size:12px;text-decoration:none}