:root{--navy:#16365c;--navy2:#1f4e79;--green:#2e6b4f;--gold:#b08d3f;--ink:#22272e;--muted:#5b6470;--line:#e3e7ec;--bg:#f6f8fa;--white:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--white);line-height:1.85;font-size:15.5px}
a{color:var(--navy2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
header.site{border-bottom:1px solid var(--line)}
.topbar{background:var(--navy);color:#dfe7f1;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#cdd9e8}
.head{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.brand{display:flex;align-items:center;gap:13px}
.brand .logoimg{height:44px;display:block}
.brand .mark{width:46px;height:46px;flex:0 0 auto}
.brand b{font-size:18px;color:var(--navy);letter-spacing:.5px;display:block;line-height:1.3}
.brand span{font-size:11.5px;color:var(--muted);letter-spacing:.5px}
nav.main{background:var(--navy)}
nav.main .wrap{display:flex;flex-wrap:wrap}
nav.main a{color:#e7eef7;padding:13px 17px;font-size:14px;border-right:1px solid rgba(255,255,255,.08)}
nav.main a:hover,nav.main a.on{background:var(--navy2);text-decoration:none}
.hero{position:relative;background:linear-gradient(180deg,#eef3f8,#e4ecf3);border-bottom:3px solid var(--gold)}
.hero .wrap{padding:54px 22px;position:relative;z-index:2}
.hero h1{font-size:30px;color:var(--navy);margin:0 0 14px;line-height:1.5;font-weight:700}
.hero p{font-size:15px;color:#33414f;max-width:680px;margin:0}
.hero{overflow:hidden}
.hero .fuji{position:absolute;right:0;bottom:0;width:50%;max-width:560px;opacity:.9;z-index:1}
.crumb{font-size:12.5px;color:var(--muted);padding:12px 0;border-bottom:1px solid var(--line)}
main{padding:34px 0 50px}
h2.sec{font-size:21px;color:var(--navy);border-left:5px solid var(--gold);padding-left:12px;margin:34px 0 16px}
h3{font-size:16.5px;color:var(--green);margin:24px 0 8px}
p{margin:10px 0}
.lead{font-size:16px;color:#2c3640}
.tw{overflow-x:auto;max-width:100%;margin:16px 0}
table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14.5px}
.tw table{margin:0}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:#eef2f6;color:var(--navy);white-space:nowrap}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0}
.card{border:1px solid var(--line);border-radius:8px;padding:18px;background:var(--white)}
.card h4{margin:0 0 8px;color:var(--navy);font-size:15.5px}
.card p{font-size:13.5px;color:var(--muted);margin:0}
.newslist{list-style:none;padding:0;margin:8px 0}
.newslist li{display:flex;gap:16px;padding:12px 2px;border-bottom:1px dashed var(--line);font-size:14.5px}
.newslist .date{color:var(--gold);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:13px}
.note{background:#f3f6f3;border-left:4px solid var(--green);padding:12px 16px;font-size:13.5px;color:#3a4a40;margin:18px 0}
.dlist{list-style:none;padding:0;margin:14px 0}
.dlist li{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:6px;padding:12px 16px;margin:8px 0}
.dlist .t{font-size:14.5px}.dlist .meta{font-size:12px;color:var(--muted)}
.btn{display:inline-block;background:var(--navy);color:#fff;padding:7px 16px;border-radius:5px;font-size:13px}.btn:hover{background:var(--navy2);text-decoration:none}
.seal{display:inline-flex;align-items:center;justify-content:center;width:104px;height:104px;border:3px double var(--gold);border-radius:50%;color:var(--gold);font-weight:700;text-align:center;font-size:12px;line-height:1.4}
footer.site{background:var(--navy);color:#c5d2e2;font-size:13px;padding:30px 0;margin-top:30px}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between}
footer .fnote{font-size:12px;color:#90a4bf;max-width:560px;margin-top:10px}
footer a{color:#cdd9e8}
.langsw a{margin-left:8px}
@media(max-width:780px){.cards{grid-template-columns:1fr}.hero h1{font-size:23px}nav.main a{padding:11px 12px;font-size:13px}.brand b{font-size:15px}}
.article{max-width:820px}.article h1{font-size:25px;color:var(--navy);line-height:1.5;margin:8px 0 18px}.article table{font-size:13.5px}.back{display:inline-block;margin:18px 0;font-size:13.5px}