@import url('https://fonts.googleapis.com/css2?family=BIZ+UDPGothic:wght@400;700&family=BIZ+UDPMincho:wght@400;700&display=swap');

/* 紙と藍のインク。原因の色はデータの点だけに使う */
:root{
  color-scheme:light;
  --paper:#f3f4f7;--sheet:#ffffff;
  --ink:#1d2433;--ink-2:#4a5263;--muted:#7d8494;
  --rule:#dcdfe6;--faint:#e9ebf0;
  --indigo:#26408b;--indigo-wash:#e6eaf5;
  --alert:#8d3b1f;--alert-wash:#fbeee7;
  --c-attack:#2a78d6;--c-misdelivery:#eb6834;--c-loss:#1baf7a;--c-exposure:#eda100;--c-unknown:#8f9a97;
  --mincho:'BIZ UDPMincho','Hiragino Mincho ProN','Yu Mincho',serif;
  --gothic:'BIZ UDPGothic','Hiragino Sans','Yu Gothic',sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --paper:#11141b;--sheet:#191d26;
    --ink:#e8ebf2;--ink-2:#b3b9c6;--muted:#868d9c;
    --rule:#2a303c;--faint:#222731;
    --indigo:#9fb3f2;--indigo-wash:#232c45;
    --alert:#f0b08e;--alert-wash:#33241d;
    --c-attack:#3987e5;--c-misdelivery:#d95926;--c-loss:#199e70;--c-exposure:#c98500;--c-unknown:#7d8986;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --paper:#11141b;--sheet:#191d26;
  --ink:#e8ebf2;--ink-2:#b3b9c6;--muted:#868d9c;
  --rule:#2a303c;--faint:#222731;
  --indigo:#9fb3f2;--indigo-wash:#232c45;
  --alert:#f0b08e;--alert-wash:#33241d;
  --c-attack:#3987e5;--c-misdelivery:#d95926;--c-loss:#199e70;--c-exposure:#c98500;--c-unknown:#7d8986;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--gothic);font-size:15px;line-height:1.8;overflow-x:hidden}
a{color:var(--indigo)}
button,input{font:inherit;color:inherit}
h1,h2,h3{margin:0;font-family:var(--mincho);font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

main{max-width:1040px;margin:0 auto;padding:0 16px}
main>section{padding:36px 0;border-top:1px solid var(--rule)}
main>.intro,main>.trend-block{border-top:0}
h2{font-size:21px;line-height:1.4;margin-bottom:6px}
.howto{font-size:13px;color:var(--ink-2);margin-bottom:16px}
.note{font-size:12px;color:var(--muted);line-height:1.75;margin-top:12px;max-width:44em}

/* 題字と更新時刻 */
.masthead{max-width:1040px;margin:0 auto;padding:18px 16px 0;display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.brand{font-family:var(--mincho);font-weight:700;font-size:19px;letter-spacing:.06em;color:var(--ink);text-decoration:none}
.updated{font-size:12px;color:var(--muted);text-align:right}
.updated.error{color:var(--alert);background:var(--alert-wash);padding:2px 8px;border-radius:4px}

.intro{padding:40px 0 28px}
h1{font-size:clamp(25px,7vw,42px);line-height:1.6;letter-spacing:.02em;font-weight:400}
h1 .ph{display:inline-block}
h1 .num{font-weight:700;font-size:1.9em;line-height:1;margin:0 .08em 0 .14em;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.lede{margin-top:18px;font-size:14px;color:var(--ink-2);max-width:36em}

/* 月ごとの推移 */
.trend-block{border-top:0;padding-top:8px}
.mchart{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px;height:210px;align-items:end;border-bottom:1px solid var(--ink-2);padding-top:8px}
.mbar{position:relative;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;border:0;background:none;padding:0;cursor:pointer;min-width:0;-webkit-tap-highlight-color:transparent}
.mval{font-family:var(--mincho);font-weight:700;font-size:13px;line-height:1;margin-bottom:5px;font-variant-numeric:tabular-nums;transition:opacity .3s}
.mstack{position:relative;width:min(100%,34px);height:var(--h,0%);min-height:2px;display:flex;flex-direction:column-reverse;border-radius:3px 3px 0 0;overflow:hidden;transition:height .8s cubic-bezier(.2,.8,.2,1);transition-delay:calc(var(--i) * 60ms)}
.seg{display:block;flex:0 1 0;min-height:0;background:var(--c);transition:flex-grow .6s cubic-bezier(.2,.8,.2,1)}
.seg.on+.seg.on,.seg.on~.seg.on{border-bottom:2px solid var(--paper)}
.mbar.partial .mstack::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 3px,var(--paper) 3px 5px);opacity:.6}
.mlab{position:absolute;top:100%;left:50%;transform:translateX(-50%);padding-top:6px;font-size:11px;color:var(--ink-2);white-space:nowrap;text-align:center;line-height:1.3}
.mlab small{display:block;font-size:9px;color:var(--muted)}
.mbar[aria-pressed="true"] .mstack{outline:2px solid var(--ink);outline-offset:2px}
.mbar[aria-pressed="true"] .mlab{color:var(--ink);font-weight:700}
.mbar:hover .mstack{filter:brightness(1.12)}
.trend-readout{margin-top:40px;font-size:13px;color:var(--ink-2);display:flex;flex-wrap:wrap;gap:2px 14px;min-height:1.8em}
.trend-readout b{color:var(--ink);font-family:var(--mincho);font-size:15px}
.trend-readout span{display:inline-flex;align-items:center;gap:6px}
.trend-readout span::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--c)}
.trend-mode{display:inline-flex;margin:0 0 12px;border:1px solid var(--rule);border-radius:6px;overflow:hidden}
.trend-mode[hidden]{display:none}
.trend-mode button{border:0;background:var(--sheet);color:var(--ink-2);font:inherit;font-size:13px;min-height:40px;padding:8px 16px;cursor:pointer}
.trend-mode button+button{border-left:1px solid var(--rule)}
.trend-mode button[aria-pressed="true"]{background:var(--indigo-wash);color:var(--ink);font-weight:700;box-shadow:inset 0 -2px 0 var(--indigo)}
.trend-mode button:focus-visible{outline:2px solid var(--indigo);outline-offset:-2px}
.mchart.leaks .mval{font-size:11px;letter-spacing:-.03em}
.trend-readout .plain::before{display:none}
@media (min-width:760px){.mchart.leaks .mval{font-size:13px}}
.mlegend{display:flex;flex-wrap:wrap;gap:4px 6px;margin:0 0 14px}
.lg{display:inline-flex;align-items:center;gap:6px;border:1px solid transparent;background:none;border-radius:4px;padding:3px 8px 3px 6px;font-size:12px;color:var(--ink-2);cursor:pointer}
.lg::before{content:"";width:10px;height:10px;border-radius:2px;background:var(--c)}
.lg:hover{border-color:var(--rule)}
.lg[aria-pressed="true"]{background:var(--indigo-wash);color:var(--ink);border-color:var(--indigo)}
.pre .mstack{height:0%}
.pre .mval{opacity:0}

/* カレンダー：1件＝1点 */

.calendar{display:grid;gap:28px}
.month h3{display:flex;align-items:baseline;gap:10px;font-size:18px;margin-bottom:8px}
.month h3 small{font-family:var(--gothic);font-weight:400;font-size:12px;color:var(--muted)}
.wk,.days{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}
.wk span{font-size:11px;color:var(--muted);text-align:center;padding-bottom:4px}
.day{position:relative;aspect-ratio:1/1.05;min-width:0;border:0;padding:4px 4px 3px;border-radius:3px;background:var(--sheet);display:flex;flex-direction:column;align-items:flex-start;cursor:pointer;-webkit-tap-highlight-color:transparent;text-align:left}
.day.blank{background:none;cursor:default}
.day.off{background:var(--faint);cursor:default}
.day .d{font-size:10px;line-height:1;color:var(--muted);font-variant-numeric:tabular-nums}
.day.weekend .d{opacity:.6}
.day.today{box-shadow:inset 0 0 0 1.5px var(--ink-2)}
.day[aria-pressed="true"]{box-shadow:inset 0 0 0 2px var(--indigo);background:var(--indigo-wash)}
.day.has:hover{box-shadow:inset 0 0 0 1px var(--muted)}
.dots{display:grid;grid-template-columns:repeat(4,6px);gap:2px;margin-top:auto}
.dot{width:6px;height:6px;border-radius:50%;background:var(--c);transition:opacity .25s}
.dot.dim{opacity:.12}
.more-dots{font-size:9px;line-height:1;color:var(--ink-2);grid-column:1/-1;margin-top:1px}

.cal-more{margin-top:16px}
.month.later{display:none}
.calendar.expanded .month.later{display:block}

/* ページを開いたときに一度だけ、日付順に点が置かれていく */
.drop .dot{animation:place .45s cubic-bezier(.2,.9,.3,1.3) both;animation-delay:var(--t)}
@keyframes place{from{opacity:0;transform:translateY(-6px) scale(.2)}}

/* 原因 */
.cause-list{display:grid;gap:2px}
.cause{display:grid;grid-template-columns:14px 1fr auto;column-gap:10px;align-items:center;width:100%;border:0;background:none;padding:10px 8px;border-radius:4px;text-align:left;cursor:pointer}
.cause:hover{background:var(--sheet)}
.cause[aria-checked="true"]{background:var(--indigo-wash)}
.cause .sw{width:12px;height:12px;border-radius:50%;background:var(--c)}
.cause .label{font-size:15px}
.cause .n{font-family:var(--mincho);font-weight:700;font-size:20px;font-variant-numeric:tabular-nums;line-height:1}
.cause .n small{font-family:var(--gothic);font-weight:400;font-size:12px;color:var(--muted);margin-left:2px}
.cause .bar{grid-column:2/4;height:3px;margin-top:6px;background:var(--faint);border-radius:2px;overflow:hidden}
.cause .bar i{display:block;height:100%;width:var(--w);background:var(--c);transform-origin:left;transition:transform .9s cubic-bezier(.2,.8,.2,1)}
.cause.all .sw{background:none;box-shadow:inset 0 0 0 1.5px var(--ink-2)}
.cause.all .bar{visibility:hidden}
.pre .cause .bar i{transform:scaleX(0)}

/* 直近7日 */
.recent-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:12px 0 0}
.recent-grid dt{font-size:12px;color:var(--muted)}
.recent-grid dd{margin:2px 0 0;font-family:var(--mincho);font-size:16px}
.recent-grid dd span{font-weight:700;font-size:34px;line-height:1.2;margin-right:2px;font-variant-numeric:tabular-nums}
.recent-grid dd.pending{font-size:17px;color:var(--ink-2);padding-top:8px}

/* 一覧 */
.news-head{display:grid;gap:12px;margin-bottom:8px}
.search input{width:100%;height:46px;border:1px solid var(--rule);background:var(--sheet);border-radius:4px;padding:0 12px;font-size:16px;outline:0}
.search input:focus{border-color:var(--indigo)}
.filter-state{font-size:13px;color:var(--ink-2);min-height:1.8em}
.filter-state button{border:0;background:none;color:var(--indigo);text-decoration:underline;padding:0 4px;cursor:pointer;font-size:13px}
.article-list{list-style:none;margin:0;padding:0}
.article{display:grid;grid-template-columns:52px 1fr;gap:0 14px;padding:20px 0;border-top:1px solid var(--rule)}
.article:first-child{border-top:0}
.article .date{font-family:var(--mincho);font-variant-numeric:tabular-nums;line-height:1.3}
.article .date b{display:block;font-size:19px}
.article .date small{font-family:var(--gothic);font-size:11px;color:var(--muted)}
.article .org{font-size:12px;font-weight:700;color:var(--ink-2);line-height:1.5;overflow-wrap:anywhere}
.article h3{font-size:17px;line-height:1.6;margin:4px 0 6px;overflow-wrap:anywhere}
.article h3 a{color:var(--ink);text-decoration:none}
.article h3 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.article .summary{font-size:14px;color:var(--ink-2);line-height:1.8}
.facts{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:10px;font-size:12px;color:var(--ink-2)}
.facts .cz{display:inline-flex;align-items:center;gap:6px}
.facts .cz::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c)}
.facts .maybe{color:var(--alert)}
.scope-note{margin-top:10px;font-size:12px;color:var(--alert);background:var(--alert-wash);padding:6px 10px;border-radius:4px}
.sub-facts{margin-top:8px;font-size:11.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:2px 14px}
.sub-facts a{font-weight:700}
.article[id]{scroll-margin-top:16px}
.incident-share{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin-top:12px;font-size:12px;min-width:0}
.incident-share button{border:1px solid var(--rule);border-radius:4px;background:var(--sheet);padding:8px 10px;cursor:pointer;min-height:44px;max-width:100%;text-align:left}
.incident-share button:disabled{opacity:.6;cursor:wait}
.share-status{flex-basis:100%;color:var(--ink-2);overflow-wrap:anywhere}
.share-url{display:block;width:100%;min-width:0;max-width:100%;padding:6px;border:1px solid var(--rule);background:var(--sheet);border-radius:4px}
.share-url[hidden]{display:none}
.empty{padding:28px 0;color:var(--ink-2);font-size:14px}
.more{display:block;width:100%;margin-top:8px;height:48px;border:1px solid var(--rule);background:var(--sheet);border-radius:4px;font-size:14px;cursor:pointer}
.more:hover{border-color:var(--ink-2)}
.more[hidden]{display:none}

/* 月ごとの件数 */
.month-table{width:100%;border-collapse:collapse;margin-top:10px;font-variant-numeric:tabular-nums}
.month-table caption{text-align:left;font-size:12px;color:var(--muted);padding-bottom:6px}
.month-table th,.month-table td{padding:10px 4px;border-bottom:1px solid var(--rule);text-align:right;font-size:13px}
.month-table thead th{white-space:normal;line-height:1.4}
.month-table thead th{font-size:11px;color:var(--muted);font-weight:400}
.month-table th:first-child{text-align:left;padding-left:0}
.month-table tbody th{font-family:var(--mincho);font-size:15px}
.month-table td:nth-child(2){font-family:var(--mincho);font-weight:700;font-size:17px}

/* この一覧について */
.method details{border-bottom:1px solid var(--rule)}
.method summary{padding:14px 0;cursor:pointer;font-size:15px}
.method details>:not(summary){font-size:13px;color:var(--ink-2);padding:0 0 14px;max-width:44em}
.method details p+p{margin-top:6px}
.candidate{padding:8px 0;border-top:1px solid var(--faint)}
.candidate time{display:block;font-size:11px;color:var(--muted)}

.colophon{max-width:1040px;margin:0 auto;padding:28px 16px calc(36px + env(safe-area-inset-bottom));border-top:1px solid var(--rule);display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 20px;font-size:12px;color:var(--muted)}
.colophon .brand{font-size:15px}

@media (min-width:760px){
  main,.masthead,.colophon{padding-left:32px;padding-right:32px}
  .intro{padding:72px 0 40px}
  .calendar{grid-template-columns:repeat(3,1fr);gap:24px}
  .month.later{display:block}
  .cal-more{display:none}
  .mchart{height:240px;gap:12px}
  .mstack{width:min(100%,56px)}
  .mval{font-size:15px}
  .mlab{font-size:12px}
  .causes-block .cause-list{grid-template-columns:1fr 1fr;column-gap:24px}
  .news{display:grid;grid-template-columns:240px 1fr;gap:0 40px;align-items:start}
  .news-head{position:sticky;top:20px}
  .article{grid-template-columns:72px 1fr}
  .article .date b{font-size:22px}
}
.archive .method p+p{margin-top:12px}
.archive-months{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:16px}
.archive .article-list{margin-top:20px}
@media (prefers-reduced-motion:reduce){
  .drop .dot,.cause .bar i,.dot,.mstack,.seg{animation:none!important;transition:none!important}
}

/* 選択されたAのしずく。固定枠とtransformで周囲を動かさない。 */
.brand-lockup{display:flex;align-items:center;gap:9px;flex-shrink:0}
.masthead{align-items:center}
.mascot{width:46px;height:46px;flex:0 0 46px;border:0;padding:0;background:none;cursor:pointer;border-radius:50%;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.mascot svg{display:block;width:100%;height:100%;overflow:visible}
.droplet-body{transform-box:fill-box;transform-origin:50% 75%}
.droplet-eyes{transform-box:fill-box;transform-origin:50% 50%;animation:droplet-blink 7.4s infinite}
@keyframes droplet-blink{0%,46%,50%,100%{transform:scaleY(1)}48%{transform:scaleY(.09)}}
.mascot-paused .droplet-eyes{animation-play-state:paused}
.mascot:hover{filter:brightness(1.04)}
@media(max-width:420px){.brand-lockup{gap:5px}.mascot{width:38px;height:38px;flex-basis:38px}.masthead .brand{font-size:17px}.updated{font-size:10px}}
@media(prefers-reduced-motion:reduce){.droplet-eyes{animation:none!important}}

.impact-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0}
.impact-tabs button{border:1px solid var(--rule);border-radius:4px;background:var(--sheet);padding:5px 10px;font-size:12px;cursor:pointer}
.impact-tabs button[aria-pressed="true"]{border-color:var(--indigo);background:var(--indigo-wash)}
.impact-block h3{font-size:18px;margin:16px 0 6px}
.impact-coverage,.impact-empty{font-size:13px;color:var(--ink-2)}
.impact-table-wrap{overflow-x:auto;max-width:100%;margin:12px 0;scrollbar-width:thin}
.impact-table{width:100%;border-collapse:collapse;font-size:12px;line-height:1.6;min-width:570px;font-variant-numeric:tabular-nums}
.impact-table caption{text-align:left;font-size:12px;color:var(--ink-2);margin-bottom:6px}
.impact-table td,.impact-table th{padding:9px 7px;border-bottom:1px solid var(--rule);text-align:left;font-weight:400}
.impact-table td:nth-child(3){white-space:nowrap;text-align:right;font-size:16px}
.impact-table thead{color:var(--muted)}
.impact-block details{font-size:13px;margin-top:14px}
.impact-block summary{cursor:pointer;padding:6px 0}
.impact-block ul,.impact-block ol{padding-left:22px}
.impact-evidence>ol>li{border-top:1px solid var(--rule);padding:14px 0}
.impact-evidence h4{margin:0 0 6px}
.impact-evidence li li{padding:6px 0;font-size:12px;overflow-wrap:anywhere}
.impact-rule,.impact-evidence li li span{color:var(--ink-2);font-size:11px}
.impact-note{max-width:68em}
@media(max-width:600px){
 .impact-table{min-width:0;font-size:12px;display:block}
 .impact-table caption{display:block}
 .impact-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
 .impact-table tbody{display:block}
 .impact-table tbody tr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;padding:12px 0;border-bottom:1px solid var(--rule)}
 .impact-table td,.impact-table th{border:0;padding:0}
 .impact-table th{grid-column:1;grid-row:1;font-weight:700}
 .impact-table td:nth-child(2){grid-column:1;grid-row:2;color:var(--ink-2);font-size:11px}
 .impact-table td:nth-child(3){grid-column:2;grid-row:1;font-size:17px}
 .impact-table td:nth-child(4){grid-column:2;grid-row:2;text-align:right;color:var(--ink-2);font-size:10px}
 .impact-table td:nth-child(5){grid-column:2;grid-row:3;text-align:right;color:var(--muted);font-size:10px}
}

.impact-kind{display:block;font-size:.72rem;font-weight:400;line-height:1.5;margin-top:.2rem;overflow-wrap:anywhere}

/* 事故件数のグラフを最初に。規模の詳細は月別ページで見る。 */
.dashboard>.intro{padding:22px 0 12px}
.dashboard>.intro .lede{margin-top:8px;font-size:13px}
.dashboard>.trend-block{padding-top:10px}
.dashboard>.intro h1 .num{font-size:1.3em}
/* 総流出件数。事故件数より大きく、藍色で */
.leak-total{font-family:var(--mincho);font-size:clamp(20px,5.2vw,28px);line-height:1.3;margin-top:6px;letter-spacing:.02em}
.leak-total .ph{display:inline-block}
.leak-total .num{font-weight:700;font-size:clamp(36px,11.5vw,108px);line-height:1.05;color:var(--indigo);margin:0 .06em 0 .1em;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.leak-note{margin-top:6px;font-size:11px;line-height:1.7;color:var(--muted);max-width:52em}
@media(max-width:600px){
 .dashboard>.intro{padding:16px 0 10px}
 .dashboard>.intro h1{font-size:22px;line-height:1.5}
 .dashboard>.intro h1 .num{font-size:1.3em}
 .leak-total{margin-top:2px}
 .dashboard>.intro .lede{font-size:12px;line-height:1.65;margin-top:6px}
 .dashboard>.trend-block{padding-top:6px}
 .dashboard>.trend-block h2{font-size:18px}
 .dashboard>.trend-block .howto{font-size:11px;margin-bottom:8px}
 .dashboard>.trend-block .mlegend{margin-bottom:8px}
 .dashboard>.trend-block .mchart{height:176px;gap:5px}
 .dashboard>.trend-block .note{font-size:11px}
}

/* 公式発表を読み解く事例への導線 */
.explanation-block{margin:24px 0 32px}.explanation-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;list-style:none;padding:0;margin:12px 0 0}.explanation-list a{display:block;border:1px solid var(--rule);border-radius:12px;padding:16px;text-decoration:none}.explanation-list strong,.explanation-list span{display:block}.explanation-list span{font-size:.85rem;margin-top:6px;color:var(--muted)}.explanation-list a:hover{background:var(--faint)}.explanation-list a:focus-visible{outline:2px solid currentColor;outline-offset:3px}@media(max-width:600px){.explanation-list{grid-template-columns:1fr}}

.explanation-list .article-published{display:block;margin-top:10px;font-size:.75rem;color:var(--muted);font-variant-numeric:tabular-nums}