:root{--ink:#090909;--muted:#6f7175;--accent:#139edf;--accent-deep:#0b7cb0;--soft:#eaf7fd;--paper:#fff;--line:rgba(9,9,9,.2);--warm:#f7fcfe}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#ffffff;color:var(--ink);font-family:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN',sans-serif;line-height:1.85}
a{color:var(--accent-deep);text-underline-offset:3px}
.site-header,.site-footer{background:var(--paper);text-align:center}
.site-header{border-bottom:1px solid var(--ink);padding:28px 20px 0}
.brand{display:inline-block;color:var(--ink);font-family:'Playfair Display',Georgia,serif;font-size:42px;font-weight:700;letter-spacing:.12em;line-height:1;text-decoration:none}
.brand span{color:var(--accent);font-size:.42em;vertical-align:1.1em}
.site-header>p{margin:8px 0 20px;font-size:10px;font-weight:700;letter-spacing:.4em;color:var(--muted)}
.site-header nav{display:flex;justify-content:center;gap:30px;border-top:1px solid var(--ink);padding:11px 16px}
.site-header nav a{color:var(--ink);font-family:'Playfair Display',Georgia,serif;font-size:12px;font-weight:700;letter-spacing:.15em;text-decoration:none}
.site-header nav a.is-current{color:var(--accent)}
.article-shell,.events-shell{width:min(100% - 32px,1180px);margin:18px auto 72px;background:var(--paper);border:1px solid rgba(9,9,9,.2)}
.article-shell{padding:24px clamp(22px,7vw,84px) 52px}
.breadcrumb{display:flex;gap:8px;align-items:center;margin-bottom:38px;font-size:12px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.article-head{border-bottom:1px solid var(--ink);padding:0 0 30px;margin-bottom:34px}
/* 記事の頭は主役ではなく帯。上下を切って、本文への導入だけを担わせる（2026-08-19） */
.event-article-hero{margin:-14px 0 34px}
.event-article-hero img{display:block;width:100%;height:auto;aspect-ratio:18/5;border:1px solid var(--line);background:#fff;object-fit:cover;object-position:50% 46%}
.eyebrow{margin:0 0 10px;color:var(--accent-deep);font-family:'Playfair Display','Zen Kaku Gothic New',sans-serif;font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}
h1,h2,h3{font-family:'Zen Old Mincho','Hiragino Mincho ProN',serif;line-height:1.5}
.article-head h1{margin:0;font-size:clamp(28px,4.4vw,44px);letter-spacing:.02em}
.description{margin:20px 0 0;color:#4f4a55;font-size:15px;line-height:2}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:20px;color:var(--muted);font-size:12px}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.article-tag{display:inline-flex;align-items:center;padding:6px 11px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--accent-deep);font-size:11px;font-weight:700;line-height:1.4;text-decoration:none}
.article-tag:hover,.article-tag:focus-visible{border-color:var(--accent);background:var(--soft)}
.article-tag:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.article-body{max-width:720px;margin:0 auto;font-size:16px}
.article-body>p:first-child{font-size:17px;line-height:2.1}
.article-body h2{margin:56px 0 20px;padding:12px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);font-size:25px}
.article-body h3{margin:38px 0 14px;color:var(--accent-deep);font-size:19px}
.article-body p{margin:0 0 22px}
.article-body ul,.article-body ol{margin:0 0 26px;padding-left:1.5em}
.article-body li{margin:8px 0;padding-left:.25em}
.article-body strong{background:linear-gradient(transparent 67%,#fff0a8 67%)}
.creator-milestone:before{pointer-events:none}
.creator-milestone strong{background:none!important}
.article-body code{background:var(--soft);border-radius:4px;padding:1px 5px}
ruby{ruby-align:center;-webkit-ruby-position:before;ruby-position:over;white-space:nowrap}
rt{font-family:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN',sans-serif;font-size:.5em;font-weight:400;line-height:1.15;letter-spacing:.02em;color:var(--muted);text-align:center;-webkit-user-select:none;user-select:none}
.article-head h1 rt,.article-body h2 rt,.article-body h3 rt{font-size:.4em;color:#7c7484;margin-bottom:.14em}
h1:has(ruby),h2:has(ruby),h3:has(ruby){line-height:1.85}
.description:has(ruby),.article-body li:has(ruby){line-height:2.1}
@media print{rt{color:inherit}}
.table-wrap{max-width:100%;margin:24px 0 30px;overflow-x:auto;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.65}
th,td{min-width:150px;padding:12px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{background:var(--soft);font-weight:700}
tr:last-child td{border-bottom:0}
th:last-child,td:last-child{border-right:0}
.editorial-policy{margin:34px 0 0;padding:22px 24px;border-left:4px solid var(--accent);background:var(--soft);font-size:14px;line-height:1.9}
.related{margin-top:64px;padding-top:28px;border-top:1px solid var(--ink)}
.related h2{margin:0 0 18px;font-size:25px}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.related-card{display:flex;min-width:0;flex-direction:column;gap:8px;padding:18px;border:1px solid var(--line);color:var(--ink);text-decoration:none;transition:transform .18s ease,border-color .18s ease}
.related-card:hover{transform:translateY(-2px);border-color:var(--accent)}
.related-card span,.related-card small{color:var(--accent-deep);font-size:10px;font-weight:700;letter-spacing:.1em}
.related-card strong{font-family:'Zen Old Mincho',serif;line-height:1.7}
.back-link{display:inline-block;margin-top:32px;font-size:13px;font-weight:700}
.events-shell{padding:0 0 64px}
.events-hero{position:relative;min-height:280px;padding:52px clamp(28px,6vw,72px) 46px;overflow:hidden;background:linear-gradient(135deg,#eaf7fd 0%,#fff 68%,#f7fcfe 100%);border-bottom:1px solid var(--ink);text-align:left}
.events-hero::before,.events-hero::after{position:absolute;border:1px solid rgba(108,92,231,.22);border-radius:50%;content:''}
.events-hero::before{width:250px;height:250px;left:-126px;top:-132px}.events-hero::after{width:180px;height:180px;right:-92px;bottom:-98px}
.events-hero h1{position:relative;margin:0;font-size:clamp(32px,4.2vw,48px)}
.events-hero>p:last-child{position:relative;max-width:620px;margin:18px 0 0;color:#514b5b;font-size:14px;line-height:2}
.events-count{display:flex;justify-content:flex-start;align-items:baseline;gap:8px;margin:12px 0 0;color:var(--accent-deep)}
.events-count strong{font-family:'Playfair Display',Georgia,serif;font-size:34px;line-height:1}.events-count span{font-size:9px;font-weight:700;letter-spacing:.2em}
.events-hero h1.events-hero-title{display:flex;flex-direction:column;align-items:flex-start;gap:0}
.events-hero-title span{display:block;line-height:1.28}
.event-group-nav>div{display:flex;flex-wrap:wrap;gap:6px}
.event-group-nav a span{margin-left:2px;color:var(--muted);font-family:Georgia,serif;font-size:9px}
.event-groups{padding:0 clamp(20px,6vw,54px)}
.event-group{padding-top:56px;scroll-margin-top:20px}
.event-group+.event-group{margin-top:10px;border-top:1px solid var(--line)}
.event-group-head{margin-bottom:20px}
.event-group-head>div{display:flex;align-items:center;gap:12px}.event-group-head h2{margin:0;font-size:28px}.event-group-head>div span{color:var(--muted);font-size:12px}
.event-group-head>p:last-child{margin:8px 0 0;color:var(--muted);font-size:13px}
.event-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.event-card{min-width:0;border:1px solid var(--line);background:#fff;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.event-card:hover{transform:translateY(-3px);border-color:#aaa1c8;box-shadow:0 12px 26px rgba(38,29,65,.1)}
.event-card-link{display:flex;height:100%;flex-direction:column;color:var(--ink);text-decoration:none}
.event-card-face{display:flex;position:relative;min-height:150px;flex-direction:column;align-items:center;justify-content:center;padding:22px 14px;background:linear-gradient(145deg,var(--soft),#fff 67%);border-bottom:1px solid var(--line);text-align:center;overflow:hidden}
/* 帯バナーはカードの頭に、切らずにそのまま載せる。3.6:1のまま全幅で敷く（2026-08-19） */
.event-card-art{width:calc(100% + 28px);height:auto;aspect-ratio:5/3;margin:-22px -14px 15px;object-fit:cover;object-position:50% 50%;background:#fff}
.event-yomi{min-height:1.4em;margin:0 0 8px;color:var(--muted);font-size:10px;letter-spacing:.14em}
.event-name{margin:0;font-family:'Zen Old Mincho','Hiragino Mincho ProN',serif;font-size:clamp(20px,2.1vw,27px);line-height:1.45;letter-spacing:.04em;white-space:nowrap}
.event-name--medium{font-size:24px;letter-spacing:.02em}
.event-name--compact{font-size:20px;letter-spacing:0}
.event-en{display:flex;align-items:center;justify-content:center;gap:5px;margin:9px 0 0;color:var(--accent-deep);font-family:'Playfair Display',Georgia,serif;font-size:10px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;white-space:nowrap}
.event-en--medium{font-size:9px;letter-spacing:.07em}
.event-en--compact{font-size:8px;letter-spacing:.035em}
.events-page .spire-category-hero h1{align-items:flex-start}
.event-card-copy{display:flex;flex:1;flex-direction:column;padding:17px 18px 18px}
.event-card-copy p{margin:0 0 18px;color:var(--muted);font-size:12px;line-height:1.8}
.event-card-copy span{margin-top:auto;color:var(--accent-deep);font-size:11px;font-weight:700}.event-card-copy b{font-size:14px}
.site-footer{border-top:1px solid var(--ink);padding:30px 20px 34px}
.brand--small{font-size:25px}
.site-footer p{margin:9px 0 0;color:var(--muted);font-size:9px;letter-spacing:.25em}
.site-footer .privacy-link{display:block;width:max-content;margin:12px auto 0;color:var(--muted);font-size:10px;font-weight:700;text-decoration:underline;text-underline-offset:3px}
@media(max-width:640px){
  .site-header{padding-top:22px}.brand{font-size:34px}.site-header nav{gap:22px}
  .article-shell,.events-shell{width:100%;margin:0;border-left:0;border-right:0}
  .article-shell{padding:20px 18px 42px}.breadcrumb{margin-bottom:26px}
  .article-head h1{font-size:27px}.description{font-size:14px}
  .article-body{font-size:15px}.article-body>p:first-child{font-size:16px}
  .article-body h2{margin-top:44px;font-size:22px}.article-body h3{font-size:18px}
  .table-wrap{margin-left:0;margin-right:0}
  th,td{min-width:135px;padding:10px 11px;font-size:12.5px}
  .related-grid,.event-grid{grid-template-columns:1fr}
  .event-groups{padding:0 18px}.event-group{padding-top:42px}.event-group-head h2{font-size:24px}
  .event-card-face{min-height:150px}.event-name,.event-name--medium{font-size:28px}.event-name--compact{font-size:26px}.event-en,.event-en--medium,.event-en--compact{font-size:10px}
  .event-group-nav>div{gap:4px}
  .events-hero{min-height:0;padding:42px 22px 38px}.events-hero h1{font-size:30px;letter-spacing:.01em}
}
@media(min-width:641px) and (max-width:980px){.event-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.related-card,.event-card{transition:none}}

/* --- イベント図鑑の固有パーツ --- */
/* 該当日は本文の主役ではない。見出しの直後に細い帯として置き、囲みを作らない（2026-08-19） */
.event-dates{margin:-18px 0 26px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:none}
.event-dates-label{display:block;margin:0 0 8px;padding:0;border:0;color:var(--accent-deep);font-family:'Playfair Display',Georgia,serif;font-size:10px;font-weight:700;letter-spacing:.18em}
.event-dates-heading-jp{margin-left:10px;color:var(--muted);font-family:'Zen Kaku Gothic New','Hiragino Kaku Gothic ProN',sans-serif;font-size:10.5px;font-weight:700;letter-spacing:.04em}
.event-dates-body{display:flex;flex-direction:column;gap:7px}
.event-dates-row{display:flex;min-width:0;align-items:baseline;gap:12px}
.event-dates-year{flex:0 0 auto;color:var(--muted);font-family:'Playfair Display',Georgia,serif;font-size:11px;font-weight:700;letter-spacing:.08em}
.event-dates-list{display:flex;min-width:0;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none}
.event-dates-list li{padding:2px 9px;border:1px solid var(--line);border-radius:999px;background:var(--paper);font-size:12px;line-height:1.65;white-space:nowrap}
.event-dates-list li b{font-weight:700}
.event-dates-list li small{margin-left:4px;color:var(--muted);font-size:10px}
.event-dates-absent{margin:2px 0 0;color:var(--muted);font-size:11.5px}

/* 日数が多い日は畳んでおく。開いてはじめて一覧が出る */
.event-dates--folded>summary{display:flex;align-items:baseline;gap:12px;cursor:pointer;list-style:none}
.event-dates--folded>summary::-webkit-details-marker{display:none}
.event-dates--folded>summary .event-dates-label{margin:0}
.event-dates-next{color:var(--ink);font-size:12.5px;font-weight:700}
.event-dates-more{margin-left:auto;color:var(--accent-deep);font-size:11px;font-weight:700}
.event-dates--folded[open]>summary{margin-bottom:11px}
.event-dates--folded:not([open]) .event-dates-more::after{content:'日付を見る →'}
.event-dates--folded[open] .event-dates-more::after{content:'閉じる'}
.event-card-next{display:flex;flex-direction:column;align-items:center;gap:5px;margin:11px 0 0;color:var(--muted);font-size:9px;font-weight:700;letter-spacing:.08em}
.event-card-next strong{padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:var(--paper);color:var(--ink);font-size:11px;letter-spacing:.03em;line-height:1.5}
.event-card-next time{white-space:nowrap}
.event-source{margin:44px 0 0;padding:20px 22px;border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;line-height:1.9}
.event-source h2{margin:0 0 10px;padding:0;border:0;font-size:15px;color:var(--ink)}
.event-source ul{margin:0;padding-left:1.3em}
.event-name{margin:0;font-family:'Zen Old Mincho','Hiragino Mincho ProN',serif;font-size:clamp(16px,1.7vw,21px);line-height:1.5;letter-spacing:.02em;white-space:normal}
.event-name--medium{font-size:18px}
.event-name--compact{font-size:16px;letter-spacing:0}
.event-en--xcompact{font-size:7.5px;letter-spacing:.02em;white-space:normal;line-height:1.5}
@media(max-width:640px){
  .event-dates{margin:-12px 0 22px;padding:11px 0}
  .event-dates-row{flex-direction:column;align-items:flex-start;gap:5px}
  .event-name,.event-name--medium{font-size:20px}.event-name--compact{font-size:18px}
  .event-en--xcompact{font-size:9px;white-space:normal}
}

/* 種類別の代表バナー（2026-08-18 納品画像） */
.event-group-banner{margin:0 0 20px}
.event-group-banner img{display:block;width:100%;height:clamp(130px,18vw,210px);border:1px solid var(--line,#dfe3e7);object-fit:cover;object-position:50% 42%;background:#fff}