:root{--bg:#f7f9ff;--text:#1a2540;--muted:#5b6988;--line:#d9e1f2;--soft:#edf2ff;--accent:#2b58ff;--warn:#fff5e8;--ok:#eaf8ef}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.72}
.container{width:min(1140px,92%);margin:0 auto}.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:9}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;padding:12px 0}.logo{font-weight:750;color:var(--text);text-decoration:none}
nav a{margin-left:14px;color:var(--muted);text-decoration:none;font-size:.95rem}.editorial-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:28px;padding:30px 0}
.kicker{text-transform:uppercase;letter-spacing:.09em;font-size:.75rem;color:#5c7dff}h1{line-height:1.2;font-size:clamp(1.8rem,4.2vw,2.7rem);margin-bottom:.5rem}
.intro{font-size:1.1rem;color:#2d3c60}.trust-row{display:flex;gap:10px;flex-wrap:wrap;color:#4f638f;font-size:.84rem;margin:14px 0 12px}
.trust-row span{background:var(--soft);border:1px solid #c8d5f5;border-radius:999px;padding:6px 10px}
article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.article-section{margin:24px 0;padding-bottom:8px;border-bottom:1px dashed var(--line)}
.editorial-note{margin:0 0 12px;color:#46608f;font-size:.95rem}.key-points{background:#f3f7ff;border:1px solid #c6d5f7;border-radius:12px;padding:12px;margin:12px 0}.key-points h2{font-size:1rem;margin:0 0 6px}

.article-section h2{margin-bottom:8px;font-size:1.28rem}.article-section ul{padding-left:20px}.article-section p{margin:.6rem 0}.internal-links a{color:var(--accent)}
.table-wrap{margin:14px 0;overflow:auto}.table-caption{font-size:.9rem;color:var(--muted);margin-bottom:8px}.editorial-table{width:100%;border-collapse:collapse;font-size:.95rem}
.editorial-table th,.editorial-table td{border:1px solid var(--line);padding:9px;vertical-align:top}.editorial-table th{background:#f1f5ff;text-align:left}
.callout{border-radius:12px;padding:12px 14px;border:1px solid #cfdafb;margin:12px 0}.callout p{margin:.4rem 0 0}.callout.warning{background:var(--warn);border-color:#f3d3a3}.callout.success{background:var(--ok);border-color:#b7e5c3}
.checklist-box{background:#f6f9ff;border:1px solid #ccd8f6;border-radius:12px;padding:12px;margin:12px 0}.checklist-title{font-weight:650;margin:0 0 6px}
.sidebar .card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:14px;margin-bottom:14px}
.ad-slot{border:1px dashed #b8c6eb;background:var(--soft);color:#4e6399;border-radius:12px;padding:14px;margin:20px 0;font-size:.91rem;text-align:center}
.btn{display:inline-block;padding:10px 14px;background:var(--accent);color:#fff;border-radius:10px;text-decoration:none}.footer{padding:28px 0;color:var(--muted)}
@media(max-width:920px){.editorial-layout{grid-template-columns:1fr}nav{display:none}}

.hero-media{margin:18px 0 20px}.hero-media img{display:block;width:100%;height:auto;border-radius:16px;border:1px solid var(--line);background:#eef3ff}
.quick-faq{background:#fbfcff;border:1px solid #cbd8f6;border-radius:14px;padding:14px;margin:16px 0 20px}.quick-faq h2{font-size:1rem;margin:0 0 10px}.quick-faq dl{margin:0}.quick-faq dt{font-weight:700;margin:.85rem 0 .25rem}.quick-faq dd{margin:0;color:#33476f}
.toc{background:#fff;border:1px solid #d9e1f2;border-radius:14px;padding:14px;margin:16px 0 18px}.toc h2{font-size:1rem;margin:0 0 8px}.toc ol{margin:0;padding-left:20px}.toc a{text-decoration:none;color:var(--accent)}
.reading-time{color:#57709f;font-size:.92rem;margin:8px 0 0}
.visually-hidden{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}