:root{color-scheme:light;--ink:#142033;--muted:#526170;--line:#d9e5ee;--sky:#eef8ff;--blue:#1267b3;--deep:#074777;--accent:#f3b33d;--green:#2f8b6b;--white:#fff;--soft:#f7fbff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:linear-gradient(180deg,#f2fbff 0%,#fff 42%,#f7fbff 100%);line-height:1.75}a{color:inherit}.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:18px;padding:14px clamp(16px,4vw,44px);background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:10px;min-width:230px;text-decoration:none}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;color:#fff;background:linear-gradient(135deg,var(--blue),#6cc6e8);font-weight:900}.brand strong{display:block;line-height:1.1}.brand small{display:block;color:var(--muted);font-size:12px}.site-nav{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;width:100%}.site-nav a{padding:8px 10px;border-radius:8px;color:var(--muted);font-size:14px;text-decoration:none}.site-nav a[aria-current=page],.site-nav a:hover{color:var(--deep);background:#e8f4ff}main{width:min(1120px,calc(100% - 32px));margin:0 auto}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:clamp(22px,5vw,56px);align-items:center;padding:clamp(38px,7vw,76px) 0 26px}.eyebrow{margin:0 0 10px;color:var(--blue);font-weight:800;font-size:13px;letter-spacing:0}h1{margin:0;font-size:clamp(30px,5vw,54px);line-height:1.18;letter-spacing:0}.lead{margin:18px 0 0;color:var(--muted);font-size:18px}.operator{display:inline-block;margin:22px 0 0;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--deep);font-weight:800}.hero-visual{margin:0}.hero-visual img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#fff}.notice,.content-section,.band,.blue-bridge,.live-card,.contact-panel{margin:24px 0;padding:24px;border:1px solid var(--line);border-radius:8px;background:#fff}.notice{background:#fff8e8;border-color:#efd49a}.notice strong{display:block;color:#7a4b00;margin-bottom:6px}.content-section h2,.band h2,.blue-bridge h2,.live-card h2{margin:0 0 10px;font-size:clamp(22px,3vw,30px);line-height:1.3}.content-section p,.band p,.notice p{margin:0;color:var(--muted)}.section-head{margin-bottom:16px}.section-head p{margin:0;color:var(--muted)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:8px}table{width:100%;min-width:860px;border-collapse:collapse;background:#fff}th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}th{background:#eaf5ff;color:var(--deep);font-size:13px}td span{display:block;color:var(--muted);font-size:13px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0}.info-card{display:block;min-height:142px;padding:20px;border:1px solid var(--line);border-radius:8px;background:#fff;text-decoration:none}.info-card strong{display:block;color:var(--deep);font-size:18px;margin-bottom:8px}.info-card span{display:block;color:var(--muted)}.info-card:hover{border-color:#9dcaed;box-shadow:0 12px 34px rgba(20,72,112,.11)}.checklist ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;list-style:none;margin:14px 0 0;padding:0}.checklist li{padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:#f8fcff}.checklist li:before{content:"✓";margin-right:8px;color:var(--green);font-weight:900}.belongings div{display:flex;flex-wrap:wrap;gap:10px}.belongings span{padding:9px 12px;border-radius:8px;background:#eaf5ff;color:var(--deep);font-weight:700}.faq{margin:24px 0}.faq details{border:1px solid var(--line);border-radius:8px;background:#fff;margin-bottom:10px;padding:14px 16px}.faq summary{cursor:pointer;font-weight:800;color:var(--deep)}.faq p{margin:10px 0 0;color:var(--muted)}.official-links div{display:flex;flex-wrap:wrap;gap:10px}.official-links a,.button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 14px;border-radius:8px;background:var(--blue);color:#fff;text-decoration:none;font-weight:800}.official-links a:hover,.button:hover{background:var(--deep)}.blue-bridge,.live-card{display:flex;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(135deg,#eaf7ff,#fff)}.contact-panel form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-panel label{display:grid;gap:6px;color:var(--deep);font-weight:800}.contact-panel input,.contact-panel select,.contact-panel textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;font:inherit}.contact-panel textarea,.contact-panel .consent,.contact-panel button,.contact-panel .hp{grid-column:1/-1}.contact-panel .hp{position:absolute;left:-9999px}.contact-panel button{min-height:48px;border:0;border-radius:8px;background:var(--blue);color:#fff;font:inherit;font-weight:900;cursor:pointer}.form-note{color:var(--muted);font-size:14px}.site-footer{margin-top:44px;padding:28px clamp(16px,4vw,44px);background:#10243a;color:#fff}.site-footer p{margin:0 0 10px;font-weight:900}.site-footer nav{display:flex;flex-wrap:wrap;gap:12px}.site-footer a{color:#d9ecff;text-decoration:none}@media (max-width:860px){.site-header{align-items:flex-start;flex-direction:column}.brand{min-width:0}.site-nav{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;width:100%;padding-bottom:2px}.hero{grid-template-columns:1fr;padding-top:30px}.card-grid{grid-template-columns:1fr 1fr}.checklist ul{grid-template-columns:1fr 1fr}.blue-bridge,.live-card{align-items:flex-start;flex-direction:column}.contact-panel form{grid-template-columns:1fr}}@media (max-width:520px){main{width:min(100% - 24px,1120px)}.site-header{padding:12px}.site-nav a{font-size:13px;white-space:nowrap}.card-grid,.checklist ul{grid-template-columns:1fr}.notice,.content-section,.band,.blue-bridge,.live-card,.contact-panel{padding:18px}.lead{font-size:16px}h1{font-size:30px}}

/* hofu detail 20260525 */
.hofu-hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);gap:clamp(22px,5vw,56px);align-items:center;padding:clamp(36px,7vw,74px) 0 24px}
.hofu-hero .lead{font-size:clamp(17px,2vw,20px)}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.button.secondary{background:#e7f3ff;color:#074777}
.button.secondary:hover{background:#d6ebff;color:#074777}
.hofu-visual img,.map-panel img{width:100%;height:auto;display:block;border-radius:8px;border:1px solid var(--line);background:#fff}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:24px 0}
.quick-grid div,.fact-grid div,.transport-grid div,.check-card,.map-panel,.route-step,.detail-note{padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}
.quick-grid span,.fact-grid strong,.transport-grid strong,.route-step strong{display:block;color:#526170;font-size:13px}
.quick-grid strong,.fact-grid span,.transport-grid span,.route-step span{display:block;color:#074777;font-weight:900}
.mini-card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.mini-card-grid span{padding:12px;border:1px solid var(--line);border-radius:8px;background:#f8fcff;font-weight:800}
.fact-grid,.transport-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}
.transport-grid p,.detail-note p{margin:8px 0 0;color:#526170}
.detail-table th{white-space:nowrap}
.route-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:16px}
.route-step{min-height:118px}
.tag-ok{display:inline-block;padding:4px 8px;border-radius:999px;background:#dff8eb;color:#176a46;font-weight:900;font-size:12px}
.tag-watch{display:inline-block;padding:4px 8px;border-radius:999px;background:#fff1d2;color:#775000;font-weight:900;font-size:12px}
.tag-stop{display:inline-block;padding:4px 8px;border-radius:999px;background:#ffe5e5;color:#8a1c1c;font-weight:900;font-size:12px}
.official-summary{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.official-summary .info-card{min-height:132px}
.source-note{color:#526170;font-size:14px;margin:18px 0 34px}
@media (max-width:900px){.hofu-hero{grid-template-columns:1fr}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mini-card-grid,.fact-grid,.transport-grid,.route-flow,.official-summary{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.quick-grid,.mini-card-grid,.fact-grid,.transport-grid,.route-flow,.official-summary{grid-template-columns:1fr}.cta-row .button{width:100%}.detail-table th{white-space:normal}}
/* /hofu detail 20260525 */

/* official airshow list 20260525 */
.official-airshow-table td span{display:block;color:#526170;font-size:13px;margin-top:2px}
.status-chip{display:inline-block;padding:4px 8px;border-radius:999px;background:#e7f3ff;color:#074777;font-size:12px;font-weight:900}
.status-chip.blue{background:#dff8eb;color:#176a46}
.status-chip.watch{background:#fff1d2;color:#775000}
.source-card{padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}
.source-card strong{display:block;color:#074777;margin-bottom:6px}
/* /official airshow list 20260525 */

/* base event list 20260525 */
.base-event-table td span{display:block;color:#526170;font-size:13px;margin-top:2px}
.event-type-chip{display:inline-block;padding:4px 8px;border-radius:999px;background:#eef7ff;color:#074777;font-size:12px;font-weight:900}
.event-type-chip.gsdf{background:#e9f8e9;color:#236c32}
.event-type-chip.msdf{background:#e6f1ff;color:#0f4f8f}
.event-type-chip.asdf{background:#e9f4ff;color:#074777}
.site-scope-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.site-scope-grid div{padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff}
.site-scope-grid strong{display:block;color:#074777;margin-bottom:6px}
@media (max-width:720px){.site-scope-grid{grid-template-columns:1fr}}
/* /base event list 20260525 */

/* mutual-related-site-links-20260525 start */

.related-site-panel{margin:28px auto;padding:22px;border:1px solid rgba(31,111,155,.18);border-radius:16px;background:linear-gradient(135deg,rgba(236,248,255,.96),rgba(255,255,255,.98));box-shadow:0 14px 34px rgba(24,82,120,.08)}
.related-site-panel h2{margin:4px 0 10px;color:#173c55}
.related-site-panel p{max-width:820px}
.related-site-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.related-site-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:10px 14px;border-radius:999px;background:#1f6f9b;color:#fff;text-decoration:none;font-weight:800}
.related-site-actions a:nth-child(n+2){background:#fff;color:#1f6f9b;border:1px solid rgba(31,111,155,.24)}
.related-site-footer-link{font-weight:800}
@media (max-width:560px){.related-site-panel{padding:18px;border-radius:12px}.related-site-actions a{width:100%;border-radius:12px}}

/* mutual-related-site-links-20260525 end */