:root{--bg: #f7f8fa;--surface: #ffffff;--border: #e6e8ec;--text: #1c1f26;--text-muted: #6b7280;--accent: #2f6fed;--accent-soft: #eaf1ff;--tag-bg: #f0f2f5;--radius: 14px}@media (prefers-color-scheme: dark){:root{--bg: #14161b;--surface: #1c1f26;--border: #2b2f38;--text: #eef0f3;--text-muted: #9aa1ac;--accent: #6d9bff;--accent-soft: #1f2a44;--tag-bg: #262a33}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Pretendard,Apple SD Gothic Neo,Malgun Gothic,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}header{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--border)}.nav-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:16px;flex-wrap:wrap}.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;letter-spacing:-.02em}.logo-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#7fb0ff);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:900}nav.cats{display:flex;gap:4px;flex-wrap:wrap}nav.cats a{padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text-muted)}nav.cats a:hover,nav.cats a.active{background:var(--accent-soft);color:var(--accent)}.hero{padding:48px 0 24px}.hero h1{font-size:30px;line-height:1.35;margin:0 0 12px;letter-spacing:-.02em}.hero h1 span{color:var(--accent)}.hero p{color:var(--text-muted);font-size:15px;margin:0;max-width:640px}.section{padding:24px 0}.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}.section-head h2{font-size:19px;margin:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}@media (max-width: 860px){.grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 560px){.grid{grid-template-columns:1fr}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px #00000012}.thumb{height:140px;display:flex;align-items:center;justify-content:center;font-size:40px;background:var(--accent-soft)}.card-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}.kicker{font-size:12px;font-weight:700;color:var(--accent)}.card-title{font-size:15px;font-weight:700;margin:0;line-height:1.4}.card-desc{font-size:13px;color:var(--text-muted);margin:0;flex:1}.card-meta{font-size:12px;color:var(--text-muted)}.post{padding:32px 0 60px;max-width:720px;margin:0 auto}.category-tag{display:inline-block;background:var(--tag-bg);color:var(--accent);font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;margin:0 0 10px}.post h1{font-size:26px;line-height:1.4;margin:0 0 8px}.pubdate{color:var(--text-muted);font-size:13px;margin:0 0 24px}.prose{font-size:15.5px}.prose h2{font-size:19px;margin-top:32px}.prose img{max-width:100%;border-radius:10px}.product-links{margin-top:32px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px}.product-links h2{font-size:16px;margin:0 0 10px}.product-links ul{list-style:none;margin:0;padding:0}.product-links li{padding:10px 0;border-top:1px solid var(--border);font-size:14px}.product-links li:first-child{border-top:none}.product-links a{color:var(--accent);font-weight:700}.product-links .note{color:var(--text-muted);font-size:12.5px}.disclosure{margin-top:32px;background:var(--tag-bg);border-radius:10px;padding:14px 16px;font-size:12.5px;color:var(--text-muted);line-height:1.6}footer{border-top:1px solid var(--border);margin-top:24px;padding:28px 0 40px;color:var(--text-muted);font-size:12.5px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.disclosure-top{margin:0 0 24px}.prose a.buy-btn{display:block;text-align:center;margin:16px 0 8px;padding:14px 16px;border-radius:12px;background:var(--accent);color:#fff;font-weight:800;font-size:15px}.prose a.buy-btn:hover{filter:brightness(1.08)}.prose a:not(.buy-btn){color:var(--accent);text-decoration:underline}.prose h3{font-size:17px;margin-top:28px}.prose table{display:block;overflow-x:auto;border-collapse:collapse;width:100%;font-size:14px;margin:12px 0}.prose th,.prose td{border:1px solid var(--border);padding:8px 10px;text-align:left;vertical-align:top}.prose th{background:var(--tag-bg);white-space:nowrap}.prose blockquote{margin:16px 0;padding:12px 16px;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 10px 10px 0}