:root{--bg:#f4f6f9;--paper:#fff;--ink:#1d2433;--sub:#6b7383;--line:#e3e7ee;--navy:#13285c;--accent:#1f55d6;--accent-d:#1846b3;--soft:#eef3fe;--bar:#1f55d6;--barbg:#e6ecf7;--gold:#c99a1c;--silver:#8d98a8;--bronze:#b0703a}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic UI","Meiryo",sans-serif;font-size:14px;line-height:1.7;word-break:auto-phrase;overflow-wrap:anywhere}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit;cursor:pointer}

/* header */
.hd{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.hd-in{max-width:1120px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:8px;color:var(--navy);font-weight:800;font-size:18px;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo i{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px;background:var(--navy);color:#fff;font-style:normal;font-size:13px;letter-spacing:-1px}
.srch{position:relative;flex:1;max-width:460px}
.srch input{width:100%;height:40px;border:1px solid var(--line);background:#f4f6f9;border-radius:20px;padding:0 44px 0 16px;font:inherit;color:var(--ink);outline:none}
.srch input:focus{border-color:var(--accent);background:#fff}
.srch .go{position:absolute;right:4px;top:4px;width:32px;height:32px;border:0;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center}
.srch .go svg{width:16px;height:16px}
.sug{position:absolute;left:0;right:0;top:44px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(19,40,92,.12);display:none;max-height:360px;overflow:auto;z-index:30}
.sug.on{display:block}
.sug a{display:block;padding:9px 14px;color:var(--ink);border-bottom:1px solid var(--line)}
.sug a:last-child{border-bottom:0}
.sug a:hover,.sug a.sel{background:var(--soft);text-decoration:none}
.sug small{color:var(--sub);margin-left:6px}
.sug .none{padding:12px 14px;color:var(--sub)}
.gnav{display:flex;gap:18px;margin-left:auto;font-weight:700;font-size:13.5px;white-space:nowrap}
.gnav a{color:var(--ink)}

.wrap{max-width:1120px;margin:0 auto;padding:20px 16px 56px}
.crumb{font-size:12px;color:var(--sub);margin:0 0 10px}
.crumb a{color:var(--sub)}
h1{font-size:24px;line-height:1.4;margin:0 0 4px;color:var(--ink)}
h2{font-size:17px;margin:0 0 12px}
.sub{color:var(--sub);font-size:13px;margin:0}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px;margin-top:16px}

/* home */
.hero{background:var(--navy);color:#fff;border-radius:12px;padding:28px 24px;margin-bottom:8px}
.hero h1{color:#fff;font-size:24px}
.hero p{margin:4px 0 0;color:#c9d5ff;font-size:13.5px}
.hero .stats{display:flex;gap:28px;margin-top:16px;flex-wrap:wrap}
.hero .stats b{display:block;font-size:22px;line-height:1.2}
.hero .stats span{font-size:12px;color:#c9d5ff}
.filter{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.filter input{flex:1;min-width:220px;height:40px;border:1px solid var(--line);background:#f4f6f9;border-radius:20px;padding:0 16px;font:inherit;outline:none}
.filter input:focus{border-color:var(--accent);background:#fff}
.tabs{display:flex;gap:2px;background:#f4f6f9;border:1px solid var(--line);border-radius:8px;padding:3px;flex-wrap:wrap}
.tabs button{border:0;background:transparent;padding:5px 12px;border-radius:6px;color:var(--sub);font-size:13px}
.tabs button.on{background:#fff;color:var(--accent);font-weight:700;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.cat-g{border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-bottom:14px}
.cat-g h3{margin:0;padding:12px 16px;font-size:15px;background:#fff;border-bottom:2px solid var(--navy)}
.cat-row{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#fff;border-top:1px solid var(--line);color:var(--ink)}
.cat-g h3+.cat-row{border-top:0}
.cat-row:hover{background:var(--soft);text-decoration:none}
.cat-row .nm{font-weight:700;font-size:15px;min-width:150px}
.cat-row .mt{color:var(--sub);font-size:12.5px;flex:1}
.cat-row .mt b{color:var(--ink);font-weight:600}
.chev{color:#a8b0bd;font-size:18px;line-height:1}
.empty{display:none;padding:20px;text-align:center;color:var(--sub)}

/* category page */
.ttl{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.badge{display:inline-block;font-size:11.5px;padding:2px 8px;border-radius:4px;background:var(--soft);color:var(--accent);font-weight:700;margin-bottom:6px}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.kpi{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.kpi span{display:block;font-size:12px;color:var(--sub)}
.kpi b{display:block;font-size:20px;line-height:1.35;margin-top:2px}
.kpi small{color:var(--sub);font-size:12px}
.rk-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.rk-head h2{margin:0}
.rk{list-style:none;margin:0;padding:0}
.rk li{display:grid;grid-template-columns:36px 1fr 200px;align-items:center;gap:12px;padding:11px 4px;border-bottom:1px solid var(--line)}
.rk li:last-child{border-bottom:0}
.rk .no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;background:#f1f3f7;color:var(--sub)}
.rk li:nth-child(1) .no{background:var(--gold);color:#fff}
.rk li:nth-child(2) .no{background:var(--silver);color:#fff}
.rk li:nth-child(3) .no{background:var(--bronze);color:#fff}
.rk .nm{font-weight:700;font-size:14.5px;line-height:1.4}
.rk .mt{display:block;color:var(--sub);font-size:12px;font-weight:400;margin-top:1px}
.rk .br{display:flex;align-items:center;gap:8px}
.rk .br i{flex:1;height:8px;border-radius:4px;background:var(--barbg);overflow:hidden}
.rk .br i span{display:block;height:100%;background:var(--bar);border-radius:4px}
.rk .br b{font-size:13px;min-width:56px;text-align:right}
.rk li.more{display:none}
.rk.open li.more{display:grid}
.morebtn{display:block;margin:12px auto 0;border:1px solid var(--line);background:#fff;border-radius:20px;padding:7px 22px;color:var(--accent);font-weight:700;font-size:13px}
.morebtn:hover{background:var(--soft)}
.pane{display:none}.pane.on{display:block}
.note{font-size:12px;color:var(--sub);margin:10px 0 0}
.arts{list-style:none;margin:0;padding:0}
.arts li{display:flex;gap:12px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--line)}
.arts li:last-child{border-bottom:0}
.arts .t{flex:1}
.arts .t a{font-weight:600;color:var(--ink)}
.arts .t a:hover{color:var(--accent)}
.arts .m{display:block;font-size:12px;color:var(--sub)}
.tag{display:inline-block;font-size:11px;padding:1px 7px;border-radius:3px;background:#f1f3f7;color:var(--sub);white-space:nowrap}
.tag.self{background:#fdf0e6;color:#a5521c}
.tag.ad{background:#fff5d6;color:#8a6500}
details.panel>summary{cursor:pointer;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
details.panel>summary::-webkit-details-marker{display:none}
details.panel>summary::after{content:"＋";color:var(--sub)}
details.panel[open]>summary::after{content:"－"}
details.panel[open]>summary{margin-bottom:10px}
.related{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px;color:var(--ink);font-weight:700;font-size:13.5px}
.related a small{display:block;color:var(--sub);font-weight:400;font-size:11.5px}
.related a:hover{border-color:var(--accent);text-decoration:none}

.ft{border-top:1px solid var(--line);background:var(--paper);padding:22px 16px;font-size:12px;color:var(--sub)}
.ft-in{max-width:1120px;margin:0 auto;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.ft a{color:var(--sub);margin-right:14px}
.ft p{margin:0}

/* article */
.art{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:28px 32px;font-size:15px;line-height:1.9}
.art h1{font-size:23px;margin:4px 0 2px}
.art .lead{margin:14px 0 18px}
.art h2{font-size:19px;margin:40px 0 14px;padding:10px 14px;background:var(--soft);border-left:4px solid var(--navy);border-radius:2px;scroll-margin-top:70px}
.art h3{font-size:16.5px;margin:24px 0 8px}
.art p{margin:0 0 12px}
.sumbox{border:2px solid var(--navy);border-radius:8px;padding:12px 18px;margin:0 0 18px}
.sumh{font-weight:800;color:var(--navy);margin:0 0 4px!important}
.sumbox ul{margin:0;padding-left:1.2em}
.sumbox li{margin:3px 0}
.toc{background:#f7f8fb;border:1px solid var(--line);border-radius:8px;padding:12px 18px;margin:0 0 8px}
.toch{font-weight:700;margin:0 0 4px!important}
.toc ol{margin:0;padding-left:1.4em;font-size:14px}
.toc a{color:var(--ink)}
.tblw{overflow-x:auto;margin:0 0 8px}
table.cmp{border-collapse:collapse;width:100%;min-width:640px;font-size:13.5px;line-height:1.6}
table.cmp th{background:var(--navy);color:#fff;font-weight:700;padding:8px 10px;text-align:left;white-space:nowrap}
table.cmp td{border-bottom:1px solid var(--line);padding:9px 10px;vertical-align:top}
table.cmp td.c{text-align:center;white-space:nowrap}
table.cmp tbody tr:nth-child(even){background:#fafbfd}
table.cmp td a{font-weight:700}
.item{border-top:1px solid var(--line);padding-top:6px;margin-top:28px;scroll-margin-top:70px}
.item h3{display:flex;align-items:center;gap:10px;font-size:19px;padding-left:12px;border-left:4px solid var(--ink)}
.ino{display:inline-grid;place-items:center;min-width:30px;height:30px;border-radius:50%;background:#f1f3f7;color:var(--sub);font-size:14px;font-weight:800}
.item:nth-of-type(1) .ino{background:var(--gold);color:#fff}
.shot{margin:12px 0 16px}
.shot img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:4px}
.shot figcaption{font-size:12px;color:var(--sub);margin-top:4px}
.chk{list-style:none;margin:14px 0;padding:6px 18px;border:2px solid #dbe6f8;background:#f7faff;border-radius:4px}
.chk li{position:relative;padding:9px 0 9px 28px;border-bottom:1px solid #dbe6f8;font-weight:700}
.chk li:last-child{border-bottom:0}
.chk li::before{content:"";position:absolute;left:4px;top:15px;width:11px;height:6px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
.spec{display:grid;grid-template-columns:150px 1fr;margin:14px 0;border:1px solid var(--line);border-radius:4px;font-size:14px}
.spec dt,.spec dd{margin:0;padding:9px 12px;border-bottom:1px solid var(--line)}
.spec dt{background:#f7f8fb;font-weight:700;color:var(--sub)}
.spec dt:nth-last-of-type(1),.spec dd:last-child{border-bottom:0}
.spec .pubs{display:block;font-size:12.5px;color:var(--sub)}
.cta{text-align:center;margin:16px 0 0}
.cta a{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:11px 32px;border-radius:24px}
.cta a:hover{background:var(--accent-d);text-decoration:none}
.art .panel{border:0;padding:0}
.faq details{border:1px solid var(--line);border-radius:6px;margin:0 0 8px;background:#fff}
.faq summary{cursor:pointer;font-weight:700;padding:11px 14px;list-style:none}
.faq summary::before{content:"Q. ";color:var(--accent)}
.faq summary::-webkit-details-marker{display:none}
.faq details p{padding:0 14px 12px;margin:0}

@media(max-width:820px){
 .hd{position:static}
 .hd-in{flex-wrap:wrap;gap:8px 10px}
 .logo{font-size:16px}.logo i{width:24px;height:24px;font-size:11px}
 .gnav{order:2;margin-left:auto;gap:12px;font-size:12px}
 .gnav a.hide-sp{display:none}
 .srch{order:3;flex-basis:100%;max-width:none}
 .tabs{flex-wrap:nowrap;overflow-x:auto;max-width:100%;scrollbar-width:none}
 .tabs::-webkit-scrollbar{display:none}
 .tabs button{white-space:nowrap;flex:none}
 .filter{gap:10px}
 .kpis{grid-template-columns:1fr 1fr}
 .kpis .kpi:last-child{grid-column:1/-1}
 .rk li{grid-template-columns:32px 1fr;row-gap:4px}
 .rk .br{grid-column:2}
 .related{grid-template-columns:1fr 1fr}
 .cat-row .nm{min-width:0}
 .cat-row{flex-wrap:wrap;row-gap:2px}
 .cat-row .mt{flex-basis:100%;order:3}
 .cat-row .chev{margin-left:auto}
 .art{padding:20px 16px;font-size:14.5px}
 .art h1{font-size:19px}
 .art h2{font-size:17px}
 .item h3{font-size:17px}
 .spec{grid-template-columns:96px 1fr;font-size:13px}
 h1,.hero h1{font-size:20px}
}