:root{--paper:#FAFAF7;--card:#FFFFFF;--ink:#23262B;--soft:#5A6068;--faint:#8B9098;
--line:#DCDDE0;--accent:#1F4E79;--accent-ink:#FFFFFF;--wash:#F0F2F5}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--paper);color:var(--ink);
font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic","Noto Sans JP",Meiryo,sans-serif;
font-size:15px;line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1000px;margin:0 auto;padding:0 20px}
.mono{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}

/* header */
.site-head{background:var(--card);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:14px 20px}
.brand{font-family:"Hiragino Mincho ProN","Yu Mincho","Hiragino Serif","Noto Serif JP",serif;
font-size:17px;font-weight:700;letter-spacing:.06em}
.brand small{display:block;font-family:inherit;font-size:10.5px;font-weight:400;color:var(--soft);letter-spacing:.22em}
.school-switch{display:flex;gap:8px;margin-left:auto;flex-wrap:wrap}
.school-switch a{font-size:12px;font-weight:700;text-decoration:none;padding:5px 12px;border-radius:3px;
border:1px solid var(--line);color:var(--soft);background:var(--card)}
.school-switch a.on{color:#fff;border-color:transparent}
.hero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,var(--paper))}
.hero .wrap{padding:64px 20px 46px;max-width:820px}
.hero h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Hiragino Serif","Noto Serif JP",serif;
font-size:clamp(22px,3.8vw,32px);line-height:1.65;font-weight:700;letter-spacing:.04em}
.hero h1 .hero-sub{display:block;margin-top:16px;font-size:.6em;letter-spacing:.32em;
color:var(--accent);font-weight:700}
.hero p{margin-top:20px;color:var(--soft);font-size:14px}
.hero .kicker{font-size:11px;letter-spacing:.3em;color:var(--accent);font-weight:700;margin-bottom:12px}

/* top cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:34px 0 10px}
.card{display:block;text-decoration:none;background:var(--card);border:1px solid var(--line);
border-top:3px solid var(--accent);border-radius:0 0 6px 6px;padding:22px 22px 18px;color:var(--ink)}
.card:hover{box-shadow:0 3px 14px rgba(30,36,48,.09)}
.card .old{font-size:11px;color:var(--faint);letter-spacing:.08em}
.card h2{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;font-size:19px;
font-weight:700;letter-spacing:.04em;margin:4px 0 10px}
.card p{font-size:12.5px;color:var(--soft);line-height:1.75}
.card .go{display:block;margin-top:12px;font-size:12px;font-weight:700;color:var(--accent)}
.notice{background:var(--wash);border:1px solid var(--line);border-radius:6px;padding:16px 20px;
font-size:13px;color:var(--soft);margin:26px 0}
.notice b{color:var(--ink)}

/* school page */
.school-hero{border-bottom:1px solid var(--line);background:var(--card)}
.school-hero .wrap{padding:34px 20px 26px}
.crumb{font-size:11.5px;color:var(--faint);margin-bottom:10px}
.crumb a{color:var(--faint)}
.school-hero .old{font-size:12px;color:var(--soft);letter-spacing:.1em}
.school-hero h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
font-size:clamp(22px,3.6vw,30px);font-weight:700;letter-spacing:.05em;margin:2px 0 8px}
.school-hero .meta{font-size:12.5px;color:var(--soft)}
.body-grid{display:grid;grid-template-columns:250px 1fr;gap:34px;padding:30px 0 60px}
.side-nav{font-size:13px}
.side-nav .cap{font-size:10.5px;letter-spacing:.24em;color:var(--faint);font-weight:700;margin:4px 0 8px}
.side-nav ul{list-style:none;border-left:2px solid var(--line)}
.side-nav li a{display:block;padding:7px 0 7px 14px;margin-left:-2px;border-left:2px solid transparent;
color:var(--soft);text-decoration:none;line-height:1.5}
.side-nav li a:hover{color:var(--accent)}
.side-nav li a.on{border-left-color:var(--accent);color:var(--accent);font-weight:700}
main.article{min-width:0;max-width:700px}
main.article h1{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
font-size:24px;font-weight:700;letter-spacing:.04em;padding-bottom:12px;margin-bottom:20px;
border-bottom:2px solid var(--accent)}
.page-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:12px}
.page-list a{display:block;background:var(--card);border:1px solid var(--line);border-radius:6px;
padding:14px 16px;text-decoration:none;color:var(--ink);font-size:13.5px;font-weight:700;line-height:1.6}
.page-list a:hover{border-color:var(--accent);color:var(--accent)}
.page-list a small{display:block;font-weight:400;color:var(--faint);font-size:11px;margin-top:2px}

/* article content (from MT asset-body) */
.article-body{font-size:14.5px;line-height:2.0;color:var(--ink)}
.article-body p{margin:0 0 1.1em}
.article-body h2,.article-body h3,.article-body h4{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
letter-spacing:.04em;line-height:1.6;margin:1.8em 0 .7em;font-weight:700}
.article-body h2{font-size:19px;border-left:3px solid var(--accent);padding-left:10px}
.article-body h3{font-size:16px}
.article-body ul,.article-body ol{margin:0 0 1.1em 1.6em}
.article-body li{margin-bottom:.4em}
.article-body img{max-width:100%;height:auto;border:1px solid var(--line);background:#fff}
.article-body a[href^="http"]{word-break:break-all}
.article-body audio{display:block;margin:10px 0}
.tblwrap{overflow-x:auto;margin:0 0 1.2em;border:1px solid var(--line)}
.article-body table{border-collapse:collapse;width:100%;min-width:560px;font-size:13px;background:#fff}
.article-body table td,.article-body table th{border-bottom:1px solid var(--line);border-right:1px solid var(--line);
padding:8px 12px;vertical-align:top;text-align:left}
.article-body table tr>:last-child{border-right:none}
.article-body table tr:last-child td{border-bottom:none}
.article-body table th{background:var(--wash);font-weight:700}
.article-body td.datecell{white-space:nowrap;font-weight:700;min-width:7em}

.site-foot{border-top:1px solid var(--line);background:var(--card)}
.site-foot .wrap{padding:26px 20px;font-size:11.5px;color:var(--faint)}
.foot-note{max-width:none;line-height:2.1}
.foot-note p{margin:0 0 .4em;text-wrap:balance}
.foot-note p:last-child{margin-bottom:0}
@media(max-width:820px){
.body-grid{grid-template-columns:1fr;gap:8px}
.side-nav ul{display:flex;flex-wrap:wrap;border-left:none;gap:6px}
.side-nav li a{border:1px solid var(--line);border-radius:4px;padding:5px 10px;margin:0}
.side-nav li a.on{border-color:var(--accent)}
.foot-note p{text-wrap:wrap}
}

/* ===== timeline (archive.js) ===== */
.tl-nav{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 22px}
.tl-nav button{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--soft);
background:var(--card);border:1px solid var(--line);border-radius:3px;padding:5px 14px;cursor:pointer}
.tl-nav button:hover{color:var(--accent);border-color:var(--accent)}
.tl{position:relative;margin:0 0 1.2em;padding-left:26px}
.tl::before{content:"";position:absolute;left:6px;top:4px;bottom:4px;width:1px;background:var(--line)}
.tl-item{position:relative;padding:0 0 26px}
.tl-item::before{content:"";position:absolute;left:-26px;top:9px;width:9px;height:9px;border-radius:50%;
background:var(--paper);border:2px solid var(--accent)}
.tl-date{font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
font-weight:700;letter-spacing:.04em;margin-bottom:4px;line-height:1.6}
.tl-era{display:inline-block;font-family:inherit;font-size:10.5px;font-weight:700;letter-spacing:.18em;
color:var(--accent);border:1px solid var(--accent);border-radius:2px;
padding:1px 8px;margin-right:10px;vertical-align:1px}
.tl-body{font-size:14px;line-height:1.9;color:var(--soft)}
.tl-body p{margin:0 0 .5em}
.tl-body p:last-child{margin-bottom:0}
.tl-item{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s ease}
.tl-item.tl-in{opacity:1;transform:none}
.tl-flash{animation:tlflash 1.2s ease}
@keyframes tlflash{0%{background:var(--wash)}100%{background:transparent}}
@media(prefers-reduced-motion:reduce){
.tl-item{opacity:1;transform:none;transition:none}
}
@media(max-width:820px){
.tl{padding-left:20px}
.tl-item::before{left:-20px}
}

/* ===== anka player (archive.js) ===== */
.anka-player{display:flex;align-items:center;gap:14px;background:var(--card);
border:1px solid var(--line);border-top:2px solid var(--accent);border-radius:0 0 6px 6px;
padding:14px 18px;margin:14px 0}
.anka-btn{flex:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--accent);
background:var(--accent);color:#fff;cursor:pointer;position:relative}
.anka-btn:hover{opacity:.88}
.anka-btn::before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
border-style:solid;border-color:transparent}
.anka-player:not(.playing) .anka-btn::before{border-width:9px 0 9px 14px;border-left-color:#fff;margin-left:2px}
.anka-player.playing .anka-btn::before{border-width:9px 12px;border-left-color:#fff;border-right-color:#fff}
.anka-bar{flex:1;height:8px;background:var(--wash);border:1px solid var(--line);border-radius:4px;
cursor:pointer;overflow:hidden}
.anka-bar:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.anka-fill{height:100%;width:0%;background:var(--accent);transition:width .15s linear}
.anka-time{flex:none;font-size:12px;color:var(--soft);font-variant-numeric:tabular-nums;min-width:9em;text-align:right}
@media(max-width:560px){
.anka-player{flex-wrap:wrap}
.anka-bar{flex-basis:100%;order:3}
.anka-time{text-align:left}
}