.column-hero{padding:96px 20px 72px;background:linear-gradient(135deg,#172116,#334f1d);color:#fff}.column-hero-inner{max-width:900px;margin:auto}.column-label{display:inline-block;margin-bottom:18px;color:#d7e6c7;font-size:13px;font-weight:700;letter-spacing:.12em}.column-hero h1{max-width:850px;margin:0 0 24px;font-family:'Shippori Mincho',serif;font-size:clamp(30px,5vw,52px);line-height:1.45}.column-hero p{max-width:760px;margin:0;font-size:17px;line-height:1.9}.column-breadcrumb{border-bottom:1px solid #e5e7eb;background:#fff}.column-breadcrumb .container{padding-top:14px;padding-bottom:14px;font-size:13px}.column-breadcrumb a{color:#334f1d}.column-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:64px;align-items:start}.article-body{max-width:780px}.article-intro{margin-bottom:48px;padding:28px 30px;border-left:5px solid #587d37;background:#f4f7f1;font-size:17px;line-height:2}.article-body h2{margin:64px 0 22px;padding-bottom:12px;border-bottom:2px solid #587d37;font-family:'Shippori Mincho',serif;font-size:30px;line-height:1.5}.article-body h3{margin:36px 0 14px;color:#334f1d;font-size:21px;line-height:1.6}.article-body p,.article-body li{font-size:16px;line-height:2}.article-body ul,.article-body ol{margin:16px 0 28px;padding-left:1.5em}.point-box,.warning-box{margin:28px 0;padding:24px 26px;border-radius:8px}.point-box{background:#f2f7ed;border:1px solid #cfdec1}.warning-box{background:#fff8e8;border:1px solid #ead29a}.comparison-table{width:100%;margin:24px 0 36px;border-collapse:collapse}.comparison-table th,.comparison-table td{padding:15px;border:1px solid #d9dfd4;text-align:left;vertical-align:top;line-height:1.7}.comparison-table th{background:#eef4e8;color:#263c19}.article-nav{position:sticky;top:100px;padding:24px;border:1px solid #dde3d8;background:#fff}.article-nav h2{margin:0 0 16px;font-size:17px}.article-nav ol{margin:0;padding-left:1.4em}.article-nav li{margin:10px 0;line-height:1.6}.article-nav a{color:#334f1d}.related-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.related-card{display:block;padding:24px;border:1px solid #dde3d8;background:#fff;color:inherit}.related-card strong{display:block;margin-bottom:10px;color:#334f1d;font-size:18px;line-height:1.6}.sample-note{margin-top:28px;color:#6b7280;font-size:13px;line-height:1.7}@media(max-width:900px){.column-layout{grid-template-columns:1fr}.article-nav{position:static;order:-1}.related-columns{grid-template-columns:1fr}.column-hero{padding-top:72px}.article-body h2{font-size:26px}}