:root{--gc-deep:#12382d;--gc-brand:#2f6b4e;--gc-brand2:#6f9a64;--gc-soft:#eef6f0;--gc-bg:#f5f8f6;--gc-card:#fff;--gc-ink:#17352a;--gc-muted:#60736a;--gc-line:#cfddd4;--gc-warn:#fff7df;--gc-shadow:0 18px 50px rgba(20,55,43,.11)}
*{box-sizing:border-box}html{background:var(--gc-bg);scroll-behavior:smooth}body{margin:0;color:var(--gc-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;line-height:1.65;background:linear-gradient(180deg,#fff 0,var(--gc-bg) 42%)}button,input,a{font:inherit}.skip-link{position:fixed;left:8px;top:-80px;z-index:9999;padding:9px 13px;border-radius:8px;background:#fff;color:var(--gc-deep)}.skip-link:focus{top:8px}.gc-header{position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(207,221,212,.8);background:rgba(255,255,255,.94);backdrop-filter:blur(14px)}.gc-header-inner{width:min(1180px,calc(100% - 28px));min-height:68px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:14px}.gc-brand{display:flex;align-items:center;gap:9px;color:var(--gc-deep);text-decoration:none;font-weight:900}.gc-brand>span:first-child{font-size:24px}.gc-brand small{display:block;color:var(--gc-brand);font-size:9px;letter-spacing:.1em}.gc-header-actions{display:flex;gap:8px;flex-wrap:wrap}.gc-header-actions a,.gc-header-actions button{min-height:40px;padding:8px 12px;border:1px solid var(--gc-line);border-radius:11px;background:#fff;color:var(--gc-deep);text-decoration:none;font-size:11px;font-weight:850;cursor:pointer}.gc-shell{width:min(1180px,calc(100% - 28px));margin:auto;padding:24px 0 56px}.gc-hero{display:grid;grid-template-columns:1fr 290px;gap:18px;align-items:stretch;padding:34px;border-radius:28px;color:#fff;background:linear-gradient(135deg,var(--gc-deep),var(--gc-brand) 64%,var(--gc-brand2));box-shadow:0 24px 64px rgba(18,56,45,.22)}.gc-kicker{margin:0;color:inherit;font-size:10px;font-weight:950;letter-spacing:.13em}.gc-hero h1{margin:8px 0 0;font-size:clamp(30px,5vw,50px);line-height:1.24}.gc-hero p:not(.gc-kicker){max-width:720px;margin:13px 0 0;font-size:14px;opacity:.93}.gc-hero-card{display:flex;flex-direction:column;justify-content:center;padding:20px;border:1px solid rgba(255,255,255,.22);border-radius:20px;background:rgba(255,255,255,.10)}.gc-hero-card strong{font-size:22px}.gc-hero-card span{font-size:12px;opacity:.9}.gc-hero-card button{margin-top:14px;min-height:45px;border:0;border-radius:12px;background:#fff;color:var(--gc-deep);font-size:12px;font-weight:900;cursor:pointer}.gc-search-panel{margin-top:18px;padding:18px;border:1px solid var(--gc-line);border-radius:20px;background:#fff;box-shadow:var(--gc-shadow)}.gc-search-panel>label{display:block;margin-bottom:7px;font-size:11px;font-weight:900}.gc-search-row{display:grid;grid-template-columns:1fr auto;gap:8px}.gc-search-row input{width:100%;min-height:46px;padding:10px 13px;border:1px solid var(--gc-line);border-radius:12px;background:#fbfdfc;color:var(--gc-ink);font-size:14px}.gc-search-row button{min-width:80px;border:1px solid var(--gc-line);border-radius:12px;background:#fff;color:var(--gc-deep);font-size:11px;font-weight:850;cursor:pointer}.gc-categories{display:flex;gap:7px;flex-wrap:wrap;margin-top:13px}.gc-categories button{min-height:35px;padding:7px 11px;border:1px solid var(--gc-line);border-radius:999px;background:#fff;color:var(--gc-muted);font-size:10px;font-weight:850;cursor:pointer}.gc-categories button.is-active{border-color:transparent;background:var(--gc-brand);color:#fff}.gc-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;margin-top:26px}.gc-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:12px}.gc-section-head .gc-kicker{color:var(--gc-brand)}.gc-section-head h2{margin:3px 0 0;font-size:25px}.gc-section-head>span{color:var(--gc-muted);font-size:11px}.gc-article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.gc-article{min-width:0;padding:17px;border:1px solid var(--gc-line);border-radius:17px;background:#fff;box-shadow:0 10px 30px rgba(18,56,45,.06)}.gc-article small{color:var(--gc-brand);font-size:9px;font-weight:900}.gc-article h3{margin:5px 0 0;font-size:16px;line-height:1.45}.gc-article p{margin:7px 0 0;color:var(--gc-muted);font-size:12px}.gc-article button{margin-top:12px;min-height:38px;padding:7px 11px;border:0;border-radius:10px;background:var(--gc-soft);color:var(--gc-deep);font-size:10px;font-weight:900;cursor:pointer}.gc-empty{padding:28px;border:1px dashed var(--gc-line);border-radius:16px;background:#fff;color:var(--gc-muted);text-align:center}.gc-side{display:flex;flex-direction:column;gap:12px}.gc-side-card{padding:18px;border:1px solid var(--gc-line);border-radius:18px;background:#fff;box-shadow:var(--gc-shadow)}.gc-side-card .gc-kicker{color:var(--gc-brand)}.gc-side-card h2{margin:5px 0 0;font-size:18px}.gc-side-card p{margin:8px 0 0;color:var(--gc-muted);font-size:12px}.gc-side-card button{width:100%;min-height:41px;margin-top:12px;border:0;border-radius:11px;background:var(--gc-brand);color:#fff;font-size:11px;font-weight:900;cursor:pointer}.gc-faq{margin-top:32px}.gc-faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.gc-faq-list details{border:1px solid var(--gc-line);border-radius:15px;background:#fff;overflow:hidden}.gc-faq-list summary{padding:14px 16px;cursor:pointer;font-size:12px;font-weight:900}.gc-faq-list p{margin:0;padding:0 16px 16px;color:var(--gc-muted);font-size:12px}.gc-dialog{width:min(720px,calc(100% - 24px));max-height:min(86vh,760px);padding:0;border:0;border-radius:22px;background:transparent}.gc-dialog::backdrop{background:rgba(9,28,22,.54);backdrop-filter:blur(3px)}.gc-dialog-card{max-height:min(86vh,760px);overflow:auto;border:1px solid var(--gc-line);border-radius:22px;background:#fff;box-shadow:0 30px 90px rgba(9,28,22,.32)}.gc-dialog-card>header{position:sticky;top:0;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:20px;border-bottom:1px solid var(--gc-line);background:#fff;z-index:1}.gc-dialog-card>header .gc-kicker{color:var(--gc-brand)}.gc-dialog-card>header h2{margin:5px 0 0;font-size:23px}.gc-dialog-card>header button{width:38px;height:38px;border:1px solid var(--gc-line);border-radius:50%;background:#fff;cursor:pointer}.gc-dialog-card #gc-dialog-body{padding:20px}.gc-dialog-card #gc-dialog-body>p{margin:0;color:var(--gc-muted);font-size:13px}.gc-steps{margin:16px 0 0;padding-left:22px}.gc-steps li{margin:8px 0;font-size:13px}.gc-warning{margin-top:16px;padding:13px;border:1px solid #ead59b;border-radius:13px;background:var(--gc-warn);color:#6f5516;font-size:12px}.gc-dialog-card>footer{position:sticky;bottom:0;display:grid;grid-template-columns:1fr auto;gap:9px;padding:16px 20px;border-top:1px solid var(--gc-line);background:#fff}.gc-primary-link,.gc-dialog-card>footer button{min-height:43px;display:flex;align-items:center;justify-content:center;padding:8px 12px;border-radius:11px;text-decoration:none;font-size:11px;font-weight:900}.gc-primary-link{background:var(--gc-brand);color:#fff}.gc-dialog-card>footer button{border:1px solid var(--gc-line);background:#fff;color:var(--gc-deep);cursor:pointer}.gc-error{margin-top:20px;padding:20px;border:1px solid #e5b7b7;border-radius:16px;background:#fff1f1;color:#7a2525}.gc-header-actions a:focus-visible,.gc-header-actions button:focus-visible,.gc-search-row input:focus-visible,.gc-search-row button:focus-visible,.gc-categories button:focus-visible,.gc-article button:focus-visible,.gc-side-card button:focus-visible,.gc-faq-list summary:focus-visible,.gc-dialog button:focus-visible,.gc-dialog a:focus-visible{outline:3px solid #f1c95b;outline-offset:3px}
@media(max-width:900px){.gc-hero{grid-template-columns:1fr}.gc-layout{grid-template-columns:1fr}.gc-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.gc-header-inner{width:min(100% - 18px,1180px);min-height:60px}.gc-brand{font-size:12px}.gc-header-actions a{display:none}.gc-header-actions button{min-height:36px;padding:7px 9px}.gc-shell{width:min(100% - 18px,1180px);padding-top:14px}.gc-hero{padding:22px 18px;border-radius:20px}.gc-hero h1{font-size:31px}.gc-search-panel{padding:14px}.gc-search-row{grid-template-columns:1fr}.gc-search-row button{min-height:38px}.gc-article-list,.gc-faq-list,.gc-side{grid-template-columns:1fr}.gc-layout{margin-top:20px}.gc-dialog{width:calc(100% - 12px)}.gc-dialog-card>header{padding:16px}.gc-dialog-card #gc-dialog-body{padding:16px}.gc-dialog-card>footer{grid-template-columns:1fr;padding:13px 16px}.gc-dialog-card>footer button{order:2}.gc-section-head h2{font-size:22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}