.blog-wrap{max-width:900px;margin:0 auto;padding:48px 20px 70px}
.blog-breadcrumb{font-size:14px;color:#6b7280;margin-bottom:24px}.blog-breadcrumb a{color:#f97316;font-weight:700}
.blog-label{display:inline-block;color:#f97316;font-size:12px;font-weight:900;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:12px}
.blog-title{font-size:clamp(34px,5vw,56px);line-height:1.08;letter-spacing:-1.8px;margin:0 0 18px;color:#172033}
.blog-intro{font-size:18px;line-height:1.75;color:#5f6b7c;margin:0 0 30px}.blog-meta{font-size:13px;color:#748094;margin-bottom:30px}
.blog-content h2{font-size:30px;line-height:1.2;margin:42px 0 14px;color:#172033}.blog-content p,.blog-content li{font-size:16px;line-height:1.8;color:#3f4b5c}
.blog-content ul,.blog-content ol{padding-left:24px}.blog-content li{margin:7px 0}
.blog-formula{padding:18px 20px;margin:20px 0;background:#f8fafc;border:1px solid #e3e8ef;border-left:4px solid #f97316;border-radius:10px;font-weight:800}
.blog-example{padding:20px;margin:20px 0;background:#fff7ed;border-radius:12px;border:1px solid #fed7aa}
.blog-tool{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:30px 0;padding:22px;border-radius:16px;background:#172033;color:#fff}
.blog-tool h3{margin:0 0 6px;color:#fff;font-size:21px}.blog-tool p{margin:0;color:#cbd5e1;font-size:14px}.blog-tool .btn{flex:0 0 auto;background:#f97316;color:#fff}
.blog-note{padding:18px 20px;margin:25px 0;border-left:4px solid #f97316;background:#fffaf4;border-radius:8px;color:#5e4b3d}
.blog-faq{margin-top:40px}.blog-faq details{border:1px solid #e1e6ed;border-radius:10px;padding:16px 18px;margin:10px 0;background:#fff}.blog-faq summary{font-weight:800;cursor:pointer;color:#172033}
.blog-related{margin-top:45px;padding-top:25px;border-top:1px solid #e5e7eb}.blog-related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.blog-related a{padding:15px;border:1px solid #e3e8ef;border-radius:10px;color:#334155;font-weight:700}
@media(max-width:700px){.blog-wrap{padding:36px 14px 55px}.blog-title{font-size:34px}.blog-content h2{font-size:26px}.blog-content p,.blog-content li{font-size:15px}.blog-tool{display:block}.blog-tool .btn{width:100%;margin-top:16px}.blog-related-grid{grid-template-columns:1fr}}