:root{
  --red:#CF2030; --red-d:#a81a27; --ink:#1f2430; --muted:#6b7280;
  --line:#e6e8ec; --bg:#f6f7f9; --card:#fff; --radius:12px; --teal:#1a5c73; --teal-d:#134557;
  --sapphire:#1f4fa3; --sapphire-d:#173c7d; --sapphire-bg:#eef3fc;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 4px 12px rgba(16,24,40,.05);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Meiryo","Hiragino Kaku Gothic ProN","Yu Gothic UI",system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:#1155cc}
#operator,#sapphire,#finder{scroll-margin-top:76px}
.site-header{background:var(--red);color:#fff;padding:16px 20px;
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px}
.brand{font-size:21px;font-weight:800;letter-spacing:.02em;color:#fff;margin:0}
.brand a{color:inherit;text-decoration:none}
.tagline{color:#ffffffd0;font-size:13.5px}
.updated{color:#ffffffb3;font-size:12px;margin-top:2px}
.navlinks{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:6px}
.navlink{text-decoration:none;color:#fff;font-weight:700;font-size:13px;border:1px solid #ffffff80;border-radius:999px;padding:4px 12px}
.navlink:hover{background:#ffffff1f}
main,.page{max-width:1080px;margin:0 auto;padding:18px 16px 8px}
.pagelead h1{margin:0 0 8px;font-size:20px;font-weight:800;line-height:1.4}
.lead-desc{margin:0 0 8px;font-size:14px;line-height:1.8;color:#374151}
.lead-stats{margin:0 0 8px;font-size:13.5px;font-weight:700;color:var(--teal)}
.lead-back{margin:0;font-size:13.5px}
.lead-back a{color:var(--red-d);font-weight:700;text-decoration:none}

/* サファイアの枠 */
.sap-mini{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:var(--sapphire-bg);border:1px solid #c9d7f2;
  border-radius:12px;padding:11px 14px;margin:12px 0 14px;font-size:13.5px;color:#26324a}
.sap-mini .eyebrow{font-size:11.5px;font-weight:800;color:var(--sapphire);letter-spacing:.04em;display:block}
.sap-mini b{font-size:14.5px}
.sap-mini .txt{flex:1;min-width:220px;line-height:1.6}
.sap-btn{display:inline-flex;align-items:center;gap:6px;background:var(--sapphire);color:#fff;text-decoration:none;font-weight:800;
  font-size:14px;border-radius:10px;padding:10px 16px;white-space:nowrap;border:0;cursor:pointer}
.sap-btn:hover{background:var(--sapphire-d)}
.sap-btn.ghost{background:#fff;color:var(--sapphire);border:1.5px solid var(--sapphire)}
.sap-full{background:#fff;border:1px solid #c9d7f2;border-top:5px solid var(--sapphire);border-radius:14px;padding:18px 18px 16px;box-shadow:var(--shadow)}
.sap-full .eyebrow{font-size:12px;font-weight:800;color:var(--sapphire);letter-spacing:.04em}
.sap-full h3{margin:4px 0 10px;font-size:19px}
.sap-full ul{margin:0 0 12px;padding-left:1.2em;font-size:14px;line-height:1.85;color:#374151}
.sap-full .note{font-size:13px;color:#374151;line-height:1.75;background:var(--sapphire-bg);border-radius:10px;padding:10px 12px;margin:0 0 14px}
.sap-full .btns{display:flex;gap:8px;flex-wrap:wrap}

/* ツールバー・絞り込み */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:4px 0 10px}
.viewtabs{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:10px;padding:3px}
.viewtabs button{border:0;background:transparent;padding:8px 16px;border-radius:8px;font-weight:700;color:var(--muted);cursor:pointer;font-size:15px}
.viewtabs button.active{background:var(--red);color:#fff}
.search{flex:1;min-width:200px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:15px;background:#fff}
select.sort{border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:14.5px;background:#fff;font-weight:600}
.acc{margin:8px 0}
.acc>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;background:#fff;
  border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-weight:700;color:var(--ink)}
.acc>summary::-webkit-details-marker{display:none}
.acc>summary .ic{font-size:16px}
.acc>summary .cnt{color:var(--muted);font-weight:600;font-size:12.5px}
.acc>summary .tap{margin-left:auto;font-size:12px;color:var(--red-d);font-weight:800;border:1px solid #f3c2c6;border-radius:999px;padding:2px 9px}
.acc>summary .chev{color:var(--red);transition:transform .2s;font-size:14px}
.acc[open]>summary .chev{transform:rotate(180deg)}
.acc.on>summary{border-color:var(--red)}
.chipsrow{display:flex;flex-wrap:wrap;gap:7px;align-items:center;padding:10px 4px 4px}
.chipsrow .lbl{font-size:13px;color:var(--muted);font-weight:700;margin-right:2px;width:100%}
.chipsrow .hint{font-size:12.5px;color:var(--muted);width:100%;margin-top:2px}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:6px 13px;font-size:14px;cursor:pointer;
  white-space:nowrap;transition:.12s;font-weight:600;color:#374151}
.chip:hover{border-color:#c8ccd3}
.chip.on{background:var(--red);border-color:var(--red);color:#fff}
.chip .n{font-size:11.5px;opacity:.75;margin-left:3px}
.toggle{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:8px 12px;cursor:pointer}
.toggle input{width:16px;height:16px;accent-color:var(--red)}
.togglerow{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 4px}
.datechips{display:flex;gap:7px;overflow-x:auto;padding:4px 2px 8px;margin-bottom:6px}
.datechips .chip{flex:0 0 auto;text-align:center;line-height:1.25}
.datechips .chip small{display:block;font-size:11px;font-weight:700;opacity:.8}
.statusbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin:12px 0 10px}
.count{font-size:15px;color:var(--muted)}
.count b{color:var(--ink);font-size:17px}
.linkbtn{background:none;border:0;color:var(--red);font-weight:700;cursor:pointer;font-size:14px;padding:4px}
.sharebar{display:flex;gap:6px;flex-wrap:wrap}

/* カード */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 15px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:7px}
.card.core{border-style:dashed}
.card-top{display:flex;gap:8px;align-items:flex-start;justify-content:space-between}
.card h3{margin:0;font-size:16.5px;font-weight:700;line-height:1.45}
.badges{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}
.badge{font-size:12px;font-weight:800;border-radius:6px;padding:3px 8px;white-space:nowrap}
.b-online{background:#e8f1fb;color:#1a5c9e}
.b-hybrid{background:#efeafb;color:#5b3fa6}
.b-inperson{background:#fdeee2;color:#a24a12}
.b-core{background:#fff4d6;color:#8a5a00}
.meta{display:flex;gap:6px 14px;flex-wrap:wrap;color:#374151;font-size:14px;font-weight:600}
.meta .muted{color:var(--muted);font-weight:600}
.venue{font-size:13px;color:var(--muted);line-height:1.5}
.next{font-size:13px;font-weight:700;color:var(--teal)}
.acts{display:flex;gap:7px;flex-wrap:wrap;margin-top:2px}
.act{font-size:13.5px;font-weight:700;border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 12px;
  text-decoration:none;color:#1f2430}
.act.primary{background:var(--red);border-color:var(--red);color:#fff}
.act:hover{filter:brightness(.97)}
.empty{text-align:center;color:var(--muted);padding:50px 10px;font-weight:600}

/* 下部 */
.below{max-width:1080px;margin:0 auto;padding:10px 16px 0}
.sec-head{font-size:17px;font-weight:800;color:var(--ink);border-left:5px solid var(--red);padding-left:11px;margin:30px 0 14px}
.about-lead{font-size:14px;line-height:1.85;color:#374151;margin:0 0 10px}
.faq{display:flex;flex-direction:column;gap:8px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px}
.faq-item>summary{cursor:pointer;list-style:none;padding:13px 14px;font-weight:700;font-size:14px;color:var(--ink)}
.faq-item>summary::-webkit-details-marker{display:none}
.faq-item>summary::before{content:"＋";color:var(--red);font-weight:800;margin-right:9px}
.faq-item[open]>summary::before{content:"－"}
.faq-item>div{padding:0 14px 14px;font-size:13.5px;line-height:1.75;color:#374151}
.linkhub{display:flex;flex-direction:column;gap:10px}
.linkhub .grp{font-size:13px;font-weight:800;color:var(--muted)}
.linkhub a{display:inline-block;padding:6px 13px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:#1f2430;
  text-decoration:none;background:#fff;margin:3px 2px}
.linkhub a:hover{border-color:var(--red);color:var(--red-d)}

/* 案内ページ */
.article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 20px 10px;box-shadow:var(--shadow)}
.article h1{font-size:21px;margin:0 0 10px;line-height:1.45}
.article h2{font-size:17px;margin:26px 0 10px;border-left:5px solid var(--red);padding-left:10px}
.article p,.article li{font-size:14.5px;line-height:1.9;color:#374151}
.article ol,.article ul{padding-left:1.3em}
.article .src{font-size:12.5px;color:var(--muted)}
.article table{border-collapse:collapse;width:100%;font-size:14px;margin:6px 0 12px}
.article th,.article td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.article th{background:#f3f4f6}
.form-row{display:flex;flex-direction:column;gap:5px;margin:0 0 14px}
.form-row label{font-weight:700;font-size:14px}
.form-row input,.form-row select,.form-row textarea{border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:15px;font-family:inherit;background:#fff}
.pending{background:#fff7e6;border:1px solid #f0c36d;border-radius:10px;padding:10px 14px;font-size:13.5px;color:#374151;margin:0 0 16px}

footer{max-width:1080px;margin:0 auto;padding:10px 16px 40px}
.footcard{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.op-avatar{flex:0 0 auto;width:84px;height:84px;border-radius:50%;overflow:hidden;position:relative;background:var(--red);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:22px}
.op-avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.op-name{font-size:16.5px;font-weight:800}
.op-name span{display:block;margin-top:3px;font-size:13.5px;color:var(--muted);font-weight:600}
.op-name .chap{color:var(--red-d);font-weight:700}
.op-name .chap a{color:inherit;text-decoration:none}
.op-desc{font-size:14.5px;color:#374151;line-height:1.65;margin-top:6px}
.op-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.op-btn{font-size:14px;font-weight:800;text-decoration:none;border-radius:10px;padding:10px 16px;display:inline-flex;align-items:center;gap:6px;color:#fff}
.op-btn.fb{background:#1877f2}.op-btn.dark{background:#1f2430}.op-btn.blue{background:var(--teal)}
.sister{margin-top:14px;font-size:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.sister a{font-weight:800;color:var(--red-d);text-decoration:none}
.disc{color:var(--muted);font-size:12.5px;margin-top:14px;line-height:1.6}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#1f2430;color:#fff;border-radius:10px;padding:10px 16px;
  font-size:14px;font-weight:700;z-index:50}
@media (max-width:640px){
  .brand{font-size:18px}
  .cards{grid-template-columns:1fr}
  .footcard{flex-direction:column}
  .viewtabs button{padding:8px 12px;font-size:14px}
}