*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Hiragino Sans","Noto Sans JP","Yu Gothic",system-ui,sans-serif;color:#1f2933;line-height:1.8;background:#fff}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}
.site-header{border-bottom:1px solid #e5e7eb;position:sticky;top:0;background:#fff;z-index:10}
.site-header .wrap{display:flex;justify-content:space-between;align-items:center;height:64px}
.brand{font-weight:700;font-size:1.1rem}
nav{display:flex;gap:20px;align-items:center}
nav a{color:#374151;text-decoration:none;font-size:.95rem}
nav a:hover{color:#0f4c81}
#lang{border:1px solid #0f4c81;background:none;color:#0f4c81;padding:4px 12px;border-radius:4px;cursor:pointer}
.hero{padding:120px 0;background:linear-gradient(135deg,#f5f7fa,#e8eef5)}
.hero h1{font-size:2.4rem;font-weight:700;letter-spacing:.05em}
section{padding:72px 0}
section.alt{background:#f9fafb}
h2{font-size:1.5rem;margin-bottom:24px;padding-left:12px;border-left:4px solid #0f4c81}
dl{display:grid;grid-template-columns:120px 1fr;gap:12px 24px}
dt{font-weight:600;color:#6b7280}
dd a{color:#0f4c81}
footer{padding:24px 0;text-align:center;font-size:.85rem;color:#6b7280;border-top:1px solid #e5e7eb}
@media(max-width:600px){.hero{padding:72px 0}.hero h1{font-size:1.7rem}nav{gap:12px}nav a{display:none}dl{grid-template-columns:1fr;gap:4px}dd{margin-bottom:12px}}
.notice{display:inline-block;padding:.4em .9em;border:1px solid currentColor;border-radius:4px;font-weight:600;margin:.5em 0}
ul li{margin:.4em 0}