/* まちの鉄道駅・路線図鑑(tetsudo-ds 0.1.0 / tetsudo-routemap)。路線図の紙面: 温かい紙色・濃紺の墨・種類ごとの路線の色・白い駅の丸。外部フォントは使わない */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:16px}
body{margin:0;background:var(--base);color:var(--ink);font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic","Meiryo",system-ui,sans-serif;font-size:16px;line-height:1.75;font-feature-settings:"palt" 1}
a{color:var(--link);text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.mono{font-family:ui-monospace,"Cascadia Mono","Consolas",monospace;font-variant-numeric:tabular-nums}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
h1,h2,h3{line-height:1.35;letter-spacing:.01em;word-break:auto-phrase;text-wrap:balance}
h1{font-size:clamp(1.5rem,3.4vw,2.3rem);margin:.2em 0 .4em;font-weight:800}
h2{font-size:clamp(1.2rem,2.2vw,1.5rem);margin:2.2em 0 .7em;font-weight:800;display:flex;align-items:center;gap:12px}
h2::before{content:"";flex:none;width:14px;height:14px;border-radius:50%;background:var(--paper);border:4px solid var(--ink);box-shadow:0 0 0 3px var(--accent)}
h3{font-size:1.05rem;margin:1.4em 0 .5em}
/* ヘッダー: 線路 */
.hd{background:var(--ink);color:#eef0f5;position:relative}
.hd::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:repeating-linear-gradient(90deg,var(--accent) 0 28px,transparent 28px 40px)}
.hdIn{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap;padding-top:8px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.mark{width:38px;height:38px;flex:none}
.brandTx{display:flex;flex-direction:column;line-height:1.25}
.brandName{font-weight:800;font-size:1.05rem}
.brandSub{font-size:.76rem;color:#c3c9d8}
.nav ul{display:flex;flex-wrap:wrap;gap:4px 14px;list-style:none;margin:0;padding:0;font-size:.9rem}
.nav a{display:inline-flex;align-items:center;min-height:44px;color:#eef0f5;text-decoration:none;padding:0 2px;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--accent);color:#fff}
.navNat{font-weight:700}
/* ヒーロー */
.hero{background:var(--paper);border-bottom:1px solid var(--line);padding:30px 0 26px}
.eyebrow{font-size:.78rem;letter-spacing:.14em;color:var(--accent-ink);font-weight:700;margin:0}
.lead{font-size:1.05rem;max-width:46em;color:#2b3550;word-break:auto-phrase}
.kpis{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 0;padding:0}
.kpi{background:var(--base);border:1px solid var(--line);border-radius:10px;padding:10px 16px;min-width:150px;border-left:6px solid var(--ink)}
.kpi dt{font-size:.8rem;color:var(--muted)}
.kpi dd{margin:0;display:flex;flex-wrap:wrap;align-items:baseline;column-gap:4px}
.kv{font-size:1.7rem;font-weight:800;font-variant-numeric:tabular-nums}
.ks{font-size:.82rem;color:var(--muted)}
.note{font-size:.88rem;color:var(--muted);margin:.8em 0}
.small{font-size:.82rem}
.src{font-size:.8rem;color:var(--muted);margin-top:1.6em}
.count{font-weight:700;margin:.4em 0}
.none{padding:12px 14px;background:var(--paper);border:1px dashed var(--line);border-radius:8px}
/* ボタン・フォーム */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 18px;border-radius:999px;border:2px solid var(--ink);background:var(--ink);color:#fff;font:inherit;font-weight:700;text-decoration:none;cursor:pointer}
.btn:hover{background:#26365e;color:#fff}
.btnGhost{background:transparent;color:var(--ink)}
.btnGhost:hover{background:var(--ink);color:#fff}
.find,.frm{margin:16px 0}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end}
.fld{display:flex;flex-direction:column;gap:4px;flex:1 1 200px}
label{font-weight:700;font-size:.9rem}
input[type=search],select{min-height:44px;padding:0 12px;border:2px solid var(--ink);border-radius:8px;background:#fff;color:var(--ink);font:inherit;width:100%;min-width:0}
.row>input[type=search]{flex:1 1 260px;width:auto}
.row>select{flex:1 1 220px;width:auto}
.kinds{display:flex;flex-wrap:wrap;gap:6px 10px;border:0;margin:0 0 10px;padding:0}
.kinds label{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;border:2px solid var(--line);border-radius:999px;background:#fff;font-weight:600;cursor:pointer}
.kinds label:has(input:checked){border-color:var(--ink);background:var(--ink);color:#fff}
.kinds input{accent-color:var(--accent);width:24px;height:24px;margin:0}
.kinds label:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:2px}
.out{margin-top:10px}
.res{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.res li{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px 14px;display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline}
.res a{font-weight:700}
.res span{font-size:.86rem;color:var(--muted)}
/* パンくず・ページ見出し */
.pageHead{background:var(--paper);border-bottom:1px solid var(--line);padding:18px 0 22px}
.crumb ol{display:flex;flex-wrap:wrap;list-style:none;margin:0 0 6px;padding:0;font-size:.82rem;color:var(--muted)}
.crumb li+li::before{content:"›";margin:0 8px;color:var(--muted)}
/* チップ */
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chips a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border:2px solid var(--line);border-radius:999px;background:var(--paper);text-decoration:none;font-weight:600;color:var(--ink)}
.chips a:hover{border-color:var(--ink)}
/* 表 */
.scroll{position:relative;overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.scroll.tall{max-height:520px;overflow-y:auto}
.scroll:focus-visible{outline:3px solid var(--focus)}
table.t{border-collapse:collapse;width:100%;font-size:.92rem}
.t th,.t td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.t thead th{background:#ebe6d8;position:sticky;top:0;font-size:.82rem;z-index:1}
.t tbody th{font-weight:700;min-width:5.5em}
.t td a,.t th a{display:inline-block;padding:11px 2px;line-height:1.3}
.t td:last-child a{white-space:nowrap}
.t .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.t tr.me{background:#fff3d2}
.t tbody tr[hidden]{display:none}
.sb{all:unset;cursor:pointer;display:inline-flex;align-items:center;min-height:44px;padding:0 4px;font-weight:700;font-size:.82rem}
.sb:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
th[aria-sort=descending] .sb::after{content:" ▼"}
th[aria-sort=ascending] .sb::after{content:" ▲"}
.bar{display:inline-block;width:74px;height:8px;background:#e6e0d0;border-radius:4px;margin-left:8px;vertical-align:middle;overflow:hidden}
.bar i{display:block;height:100%;background:var(--ink)}
.tag{display:inline-block;padding:0 9px;border-radius:999px;font-size:.78rem;font-weight:700;border:2px solid;background:#fff;color:var(--ink);line-height:1.6;white-space:nowrap}
.tag.t1{border-color:var(--t1)}.tag.t2{border-color:var(--t2)}.tag.t3{border-color:var(--t3)}.tag.t4{border-color:var(--t4)}.tag.t5{border-color:var(--t5)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.rank{list-style:none;margin:0;padding:0;display:grid;gap:6px;counter-reset:r}
.rank li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:8px 14px;counter-increment:r}
.rank li::before{content:counter(r);font-weight:800;min-width:1.6em;color:var(--accent-ink)}
.rank span{font-weight:700;flex:1 1 12em}
.rank small{color:var(--muted)}
/* 地図 */
.mapBox{position:relative;background:var(--sea);border:1px solid var(--line);border-radius:12px;overflow:hidden}
svg.map{display:block;width:100%;height:auto;max-height:78vh;touch-action:pan-y;cursor:grab}
.sea{fill:var(--sea)}
.rl{fill:none;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke;stroke-width:2.4;transition:opacity .15s}
.rl.t1{stroke:var(--t1);stroke-width:3.4}.rl.t2{stroke:var(--t2)}.rl.t3{stroke:var(--t3)}.rl.t4{stroke:var(--t4)}.rl.t5{stroke:var(--t5)}
.rl.dim{opacity:.12}
.natMap .rl{stroke-width:1.5}.natMap .rl.t1{stroke-width:2.2}
.natMap .rl.off{opacity:.07}
.dotB,.dotF{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke;pointer-events:none}
.dotB{stroke:#fff;stroke-width:9}
.dotF{stroke:var(--ink);stroke-width:5}
.hi path{fill:none;stroke-linecap:round;vector-effect:non-scaling-stroke}
.hi .hb{stroke:var(--accent);stroke-width:18;opacity:.9}
.hi .hf{stroke:var(--ink);stroke-width:7}
.inset{fill:none;stroke:#8a93a6;stroke-dasharray:6 5;stroke-width:2}
.insetT{font-size:20px;fill:#465069}
.mapTools{position:absolute;right:10px;top:10px;z-index:2;display:flex;flex-direction:column;gap:6px}
.mapTools .btn{background:#fff;padding:0 10px;min-height:44px}
.mapTools .btn:hover{background:var(--ink)}
.mapInfo{margin:0;padding:10px 14px;background:var(--paper);border-top:1px solid var(--line);font-weight:700;min-height:48px}
.lgd{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none;margin:10px 0 0;padding:0;font-size:.86rem}
.lgd li{display:inline-flex;align-items:center;gap:6px}
.sw{display:inline-block;width:26px;height:6px;border-radius:3px;background:#999}
.sw.t1{background:var(--t1)}.sw.t2{background:var(--t2)}.sw.t3{background:var(--t3)}.sw.t4{background:var(--t4)}.sw.t5{background:var(--t5)}
.dot{display:inline-block;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--ink)}
.tyf{margin-top:6px}
/* 比較 */
.cmpBlock{margin:12px 0 28px}
.cmp th[scope=col] .rm{all:unset;cursor:pointer;min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}
.cmp th[scope=col] .rm:focus-visible{outline:3px solid var(--focus)}
/* 本文 */
.prose{padding-bottom:30px;max-width:860px}
.prose h2{margin-top:1.8em}
.dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px}
.dl dt{font-weight:700}.dl dd{margin:0;word-break:break-all}
/* フッター */
.ft{background:var(--ink);color:#d8dce8;margin-top:48px;padding:28px 0 22px;font-size:.88rem}
.ft a{color:#f4f1ea}
.ftTop{display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between}
.ftName{font-weight:800;font-size:1.05rem;margin:0}
.ftLead{margin:.2em 0 0}
.ftLinks{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 18px}
.ftLinks a{display:inline-flex;min-height:44px;align-items:center}
.disc{font-size:.8rem;margin:16px 0 6px;color:#c9cedc}
.ftLast{margin:0;font-size:.8rem}
@media (max-width:640px){
  .dl{grid-template-columns:1fr}
  .kpi{min-width:calc(50% - 6px)}
  .kv{font-size:1.4rem}
  .t th,.t td{padding:8px 9px}
  .scroll.tall{max-height:440px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}