/* まちの交通事故データマップ(jiko-ds 0.1.0 / jiko-nightroad)。夜の道路の計器盤: 濃紺の墨・灰青の台紙・反射材の黄・信号の青緑。赤は死亡事故の数字だけ。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(--teal);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;padding-left:14px;border-left:6px solid var(--amber)}
h3{font-size:1.05rem;margin:1.4em 0 .5em}
/* ヘッダー */
.hd{background:var(--ink);color:#e6edf3;border-bottom:3px solid var(--amber)}
.hdIn{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.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:#b9c6d2}
.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:#e6edf3;text-decoration:none;padding:0 2px;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--amber);color:#fff}
.navNat{font-weight:700}
/* ヒーロー: 道路の車線を思わせる帯 */
.hero{background:var(--paper);border-bottom:1px solid var(--line);padding:34px 0 28px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:repeating-linear-gradient(90deg,var(--amber) 0 40px,transparent 40px 64px);opacity:.75}
.eyebrow{font-size:.78rem;letter-spacing:.14em;color:var(--amber-ink);font-weight:700;margin:0}
.lead{font-size:1.05rem;max-width:46em;color:#2f3d4a;word-break:auto-phrase}
.cta{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 0}
.cta .btn{flex:0 1 auto}
.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}
.kpi dt{font-size:.8rem;color:var(--muted)}
.kpi dd{margin:0;display:flex;flex-wrap:wrap;align-items:baseline;column-gap:2px}
.kn{font-size:.8rem;color:var(--muted);margin-left:4px}
.kpi.red .kv{color:var(--red)}
.kv{font-size:1.7rem;font-weight:800;font-variant-numeric:tabular-nums}
.ks{font-size:.8rem;color:var(--muted);margin-left:4px}
/* フォーム */
.frm{display:flex;flex-direction:column;gap:6px}
.frm label{font-size:.88rem;font-weight:700;color:#2f3d4a;margin-top:6px}
.frm.inline{max-width:520px;margin:6px 0 12px}
.row{display:flex;gap:8px;flex-wrap:wrap}
.row select{flex:1 1 220px;width:auto}
input,select{font:inherit;color:var(--ink);background:#fff;border:1.5px solid #b4bfc8;border-radius:8px;padding:10px 12px;min-height:46px;width:100%}
input:focus,select:focus{border-color:var(--teal)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font:inherit;font-weight:700;background:var(--ink);color:#fff;border:0;border-radius:8px;min-height:46px;padding:0 20px;text-decoration:none;cursor:pointer}
.btn:hover{background:#0f171e;color:#fff}
.btnGhost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.out{margin-top:12px}
.note{font-size:.88rem;color:var(--muted)}
.none{background:#fbf3e3;border:1px solid #ecd9b2;border-radius:8px;padding:10px 12px}
.sup{color:var(--muted)}
.res{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.res li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:0 2px;min-height:48px;border-bottom:1px solid var(--line)}
.res li a{display:flex;align-items:center;min-height:48px;flex:1}
/* 表 */
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.t{border-collapse:collapse;width:100%;font-size:.93rem}
.t th,.t td{padding:8px 11px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.t thead th{background:#e4e9ee;font-size:.8rem;color:#2f3d4a;position:sticky;top:0;white-space:nowrap;vertical-align:bottom}
.t tbody tr:nth-child(even){background:#f7f9fb}
.t .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.t th a{display:inline-block;min-height:44px;line-height:44px;padding:0 2px;white-space:nowrap}
.t tbody th[scope=row]{min-width:5.5em}
.t tr.me th,.t tr.me td{background:#fff6dc;font-weight:700}
.t tr.grp th{background:#eef1f4;font-size:.82rem;color:var(--muted);padding-top:10px}
.sb{font:inherit;font-size:.8rem;font-weight:700;background:none;border:0;color:#2f3d4a;cursor:pointer;padding:4px 2px;min-height:44px;text-align:right;line-height:1.3}
.sb:hover{color:var(--teal)}
th[aria-sort] .sb::after{content:" ▼";font-size:.7em}
th[aria-sort="ascending"] .sb::after{content:" ▲"}
.kd{display:inline-block;font-size:.7rem;background:#e4e9ee;border-radius:999px;padding:0 7px;margin-left:6px;vertical-align:middle;color:var(--muted)}
.rm{font:inherit;font-size:1rem;line-height:1;background:#e4e9ee;border:0;border-radius:999px;width:44px;height:44px;cursor:pointer;margin-left:2px;vertical-align:middle}
.cmp th[scope=col]{white-space:normal;min-width:6.5em;vertical-align:top}
/* 表の先頭列(名前)は横スクロール中も見えるように固定する */
.scroll .t tbody th[scope=row]{position:sticky;left:0;z-index:1;background:var(--paper);box-shadow:1px 0 0 var(--line)}
.scroll .t tbody tr:nth-child(even) th[scope=row]{background:#f7f9fb}
.scroll .t tbody tr.me th[scope=row]{background:#fff6dc}
.scroll .t tbody tr.grp th[scope=row]{position:static;box-shadow:none}
/* 図版 */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:14px}
.bars{width:100%;height:auto;display:block;background:var(--paper);border:1px solid var(--line);border-radius:10px}
.bars .b{fill:var(--m4)}
.bars .b.hl{fill:var(--amber)}
.bars .b.sp{fill:#cfd6dd}
.bars .ax,.lines .ax{font-size:11px;fill:var(--muted);text-anchor:middle}
.bars .axv,.lines .axv,.mesh .axv{font-size:11px;fill:var(--muted)}
.bars .axl{stroke:var(--line)}
.dt{margin:6px 0 0}
.dt summary{cursor:pointer;font-size:.88rem;color:var(--teal);min-height:44px;line-height:44px;padding:0 4px}
.dt .t{font-size:.82rem}
.mesh{width:100%;max-width:760px;height:auto;display:block;background:#f5f7f9;border:1px solid var(--line);border-radius:10px}
.mesh rect{stroke:#fff;stroke-width:.3}
.mesh .c1,.sw.c1{fill:var(--m1);background:var(--m1)}
.mesh .c2,.sw.c2{fill:var(--m2);background:var(--m2)}
.mesh .c3,.sw.c3{fill:var(--m3);background:var(--m3)}
.mesh .c4,.sw.c4{fill:var(--m4);background:var(--m4)}
.mesh .c5,.sw.c5{fill:var(--m5);background:var(--m5)}
.mesh .lg rect{stroke:none}
.mapNone{background:var(--paper);border:1px dashed var(--line);border-radius:10px;padding:16px}
.mlg{list-style:none;display:flex;flex-wrap:wrap;gap:6px 16px;padding:0;margin:8px 0 0;font-size:.85rem}
.mlg li,.lgd li{display:flex;align-items:center;gap:6px}
.mlg .mlgT{flex:1 0 100%;color:var(--muted)}
.sw{display:inline-block;width:18px;height:12px;border:1px solid #fff;outline:1px solid var(--line)}
.lines{width:100%;height:auto;display:block;background:var(--paper);border:1px solid var(--line);border-radius:10px}
.lines .ln{stroke-width:2.2}
.ln.s0,.sw.s0{stroke:var(--m5);background:var(--m5)}.ln.s1,.sw.s1{stroke:var(--amber);background:var(--amber)}.ln.s2,.sw.s2{stroke:var(--teal);background:var(--teal)}.ln.s3,.sw.s3{stroke:#8a4fbf;background:#8a4fbf}.ln.s4,.sw.s4{stroke:#6b7a88;background:#6b7a88;stroke-dasharray:4 3}
.lgd{list-style:none;display:flex;flex-wrap:wrap;gap:6px 16px;padding:0;margin:8px 0 0;font-size:.85rem}
.top{padding-left:1.4em;margin:0}
.top li{display:flex;justify-content:space-between;gap:8px;border-bottom:1px dashed var(--line);padding:4px 0}
.facts{padding-left:1.2em}
.facts li{margin:4px 0}
.chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.chips a{display:inline-flex;align-items:center;min-height:44px;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:0 14px;text-decoration:none;color:var(--ink);font-size:.9rem}
.chips a:hover{border-color:var(--ink)}
/* 下層 */
.pageHead{background:var(--paper);border-bottom:1px solid var(--line);padding:22px 0 18px}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:0 0 6px;font-size:.85rem;color:var(--muted)}
.crumb a{display:inline-flex;align-items:center;min-height:32px}
.crumb li+li::before{content:"›";margin:0 6px 0 2px}
.prose{max-width:860px;padding-bottom:20px}
.dl{display:grid;grid-template-columns:9em 1fr;gap:6px 16px}
.dl dt{font-weight:700}
.dl dd{margin:0;word-break:break-all}
.ranks{margin-top:14px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.src{font-size:.82rem;color:var(--muted);margin-top:28px;border-top:1px dashed var(--line);padding-top:12px}
/* フッター */
.ft{margin-top:56px;background:var(--ink);color:#d2dbe3;padding:30px 0 22px;font-size:.88rem}
.ft a{color:#fff}
.ftTop{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ftName{font-weight:800;color:#fff;margin:0}
.ftLead{margin:0}
.ftLinks{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:0 16px}
.ftLinks a{display:inline-flex;align-items:center;min-height:44px}
.disc{font-size:.8rem;color:#b1bec9;margin-top:18px}
.ftLast{font-size:.78rem;color:#b1bec9;margin:6px 0 0}
@media (max-width:900px){.grid3{grid-template-columns:1fr}}
@media (max-width:760px){
  .grid2{grid-template-columns:1fr}
  .hdIn{gap:0;padding-top:6px;padding-bottom:0}
  .brandSub{font-size:.72rem}
  /* ナビは 1 行の横スクロール(折り返して何段にもしない)。右端を薄くして続きがあることを示す */
  .nav{margin:0 -16px;padding:0 16px;width:calc(100% + 32px);overflow-x:auto;-webkit-overflow-scrolling:touch;-webkit-mask-image:linear-gradient(90deg,#000 90%,transparent);mask-image:linear-gradient(90deg,#000 90%,transparent)}
  .nav ul{flex-wrap:nowrap;gap:0 18px;font-size:.9rem;white-space:nowrap;padding-right:28px}
  h1{font-size:1.45rem}
  .hero{padding:22px 0 24px}
  .lead{font-size:.98rem;line-height:1.7}
  .cta .btn{flex:1 1 calc(50% - 8px);padding:0 12px;font-size:.95rem}
  .kpis{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .kpi{min-width:0;padding:8px 12px}
  .kv{font-size:1.45rem}
  .ks{margin-left:2px}
  .kn{flex:1 0 100%;margin-left:0}
  .dl{grid-template-columns:1fr}
  .t{font-size:.86rem}
  .t th,.t td{padding:8px 8px}
  .t thead th{white-space:normal}
  .t .num{white-space:nowrap}
  .frm.inline{max-width:none}
  .row .btn{flex:1 1 calc(50% - 8px)}
  .row select{flex:1 1 100%}
  .rm{width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}