:root{--navy:#0F1B2D;--teal:#0B6E69;--teal-l:#E4F2F0;--bg:#F3F5F7;--text:#1b2430;--muted:#5b6672;--line:#dde2e7}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);line-height:1.8;font-size:16px;
font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif}
a{color:var(--teal)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.sample-banner{background:#fff3cd;color:#664d03;text-align:center;padding:8px 12px;font-size:14px}
.site-header{background:var(--navy)}
.header-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-top:12px;padding-bottom:12px}
.logo{color:#fff;font-weight:700;font-size:22px;text-decoration:none;letter-spacing:.02em}
.logo span{color:#6fd3cb}
.nav a{color:#dfe7ee;text-decoration:none;margin-right:16px;font-size:15px;display:inline-block;padding:4px 0}
.nav a:hover{color:#fff;text-decoration:underline}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;padding-top:24px;padding-bottom:32px}
.page-title{font-size:24px;margin:0 0 16px;line-height:1.4}
.page-title small{display:block;font-size:14px;color:var(--muted);font-weight:400}
h2{font-size:19px;margin:28px 0 12px;padding-left:10px;border-left:4px solid var(--teal)}
.featured{background:var(--teal-l);border-radius:8px;padding:4px 16px 16px}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin-bottom:12px}
.card h3{font-size:17px;margin:4px 0 6px;line-height:1.55}
.card p{margin:6px 0}
.summary{font-size:15px}
.why{font-size:14px;background:var(--teal-l);border-radius:6px;padding:6px 10px}
.meta{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted)}
.tag{background:var(--navy);color:#fff;border-radius:4px;padding:0 8px;font-size:12px}
.src{font-size:13px;color:var(--muted)}
.ai{border:1px solid var(--line);border-radius:4px;padding:0 6px;font-size:12px}
.more{text-align:right;font-size:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{border:1px solid var(--teal);border-radius:999px;padding:2px 14px;text-decoration:none;font-size:14px;background:#fff}
.chip.active{background:var(--teal);color:#fff}
.pager{display:flex;justify-content:space-between;align-items:center;margin:24px 0;font-size:15px}
.box{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 16px;margin-bottom:16px}
.box h2{margin:0 0 8px;font-size:16px}
.plain{list-style:none;padding:0;margin:0}
.plain li{padding:4px 0}
.archive li{border-bottom:1px solid var(--line);padding:10px 0}
.small{font-size:13px;color:var(--muted)}
.ad-slot{background:#e9edf0;color:#8a95a0;text-align:center;padding:60px 0;margin-bottom:16px;border-radius:8px}
.site-footer{background:var(--navy);color:#cbd5df;padding:20px 0;font-size:14px}
.site-footer a{color:#fff}
.site-footer .small{color:#9fb0c0}
@media(max-width:760px){.layout{grid-template-columns:1fr}.page-title{font-size:21px}.nav a{margin-right:12px}}
.prose h2{font-size:17px;margin:24px 0 8px}
.prose h2:first-child{margin-top:4px}
.prose ul{padding-left:1.4em}
.prose p,.prose li{font-size:15px}
table.info{border-collapse:collapse;width:100%}
table.info th,table.info td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top;font-size:15px}
table.info th{width:8em;white-space:nowrap;color:var(--muted);font-weight:600}
.btn{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;border-radius:6px;padding:8px 18px}