:root{color:#0f172a;background:#f8fafc;font-family:Segoe UI,system-ui,sans-serif;line-height:1.55}*{box-sizing:border-box}body{margin:0}a{color:#2563eb;text-decoration:none}a:hover{text-decoration:underline}.site-shell{flex-direction:column;min-height:100vh;display:flex}main{flex:1}.site-header{background:#fff;border-bottom:1px solid #e2e8f0;flex-wrap:wrap;align-items:center;gap:1.5rem;padding:1rem 2rem;display:flex}.logo{color:#0f172a;font-size:1.25rem;font-weight:800;text-decoration:none}.nav{flex:1;gap:1.25rem;display:flex}.nav a{color:#475569;font-weight:500}.nav a.active{color:#2563eb}.header-actions{align-items:center;gap:.75rem;display:flex}.lang-select{font:inherit;border:1px solid #cbd5e1;border-radius:8px;padding:.4rem .6rem}.btn{cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;padding:.65rem 1.2rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-sm{padding:.45rem .9rem;font-size:.9rem}.btn-primary{color:#fff;background:linear-gradient(135deg,#2563eb,#7c3aed)}.btn-primary:hover{filter:brightness(1.05);text-decoration:none}.btn-outline{color:#2563eb;background:#fff;border:2px solid #2563eb}.btn-outline:hover{background:#eff6ff;text-decoration:none}.hero{color:#f8fafc;background:linear-gradient(160deg,#0f172a 0%,#1e3a5f 50%,#312e81 100%);padding:4rem 2rem}.hero-inner{max-width:720px;margin:0 auto}.hero h1{margin:0 0 1rem;font-size:clamp(2rem,5vw,2.75rem);line-height:1.15}.hero-sub{opacity:.9;margin:0 0 2rem;font-size:1.15rem}.hero-cta{flex-wrap:wrap;gap:1rem;display:flex}.features{max-width:960px;margin:0 auto;padding:3rem 2rem}.features h2{text-align:center;margin-bottom:2rem}.feature-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;display:grid}.feature-grid article{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:1.5rem}.feature-grid h3{margin:0 0 .5rem}.demo-section{background:#fff;border:1px solid #e2e8f0;border-radius:16px;max-width:720px;margin:0 auto 3rem;padding:2rem;box-shadow:0 8px 30px #0f172a0f}.demo-section h2{margin-top:0}.muted{color:#64748b}.usage-badge{color:#1d4ed8;background:#eff6ff;border-radius:999px;padding:.35rem .75rem;font-size:.85rem;font-weight:600;display:inline-block}.demo-form{flex-direction:column;gap:1rem;margin-top:1.5rem;display:flex}.demo-form label{flex-direction:column;gap:.35rem;font-size:.85rem;font-weight:600;display:flex}.demo-form input{font:inherit;border:1px solid #cbd5e1;border-radius:8px;padding:.55rem .65rem;font-weight:400}.demo-result{border-top:1px solid #e2e8f0;margin-top:1.5rem;padding-top:1.5rem}.article-output-panel{margin-top:.75rem}.article-output-toolbar{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.5rem;display:flex}.view-toggle{border:1px solid #e2e8f0;border-radius:8px;display:inline-flex;overflow:hidden}.view-toggle button{cursor:pointer;color:#64748b;background:#fff;border:none;padding:.35rem .75rem;font-size:.8rem}.view-toggle button.active{color:#fff;background:#0f172a}.icon-btn{color:#334155;cursor:pointer;background:#fff;border:1px solid #e2e8f0;border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex}.article-output{white-space:pre-wrap;word-break:break-word;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;max-height:400px;padding:1rem;font-size:.9rem;line-height:1.6;overflow:auto}.article-output--html{white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85rem}.article-output--text{white-space:pre-wrap}.form-error{color:#dc2626}.page{max-width:800px;margin:0 auto;padding:2rem}.article-list{flex-direction:column;gap:1rem;margin:2rem 0 0;padding:0;list-style:none;display:flex}.article-card{color:inherit;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.25rem 1.5rem;display:block}.article-card:hover{border-color:#93c5fd;text-decoration:none}.article-card h2{margin:.35rem 0;font-size:1.15rem}.article-card time{color:#94a3b8;font-size:.8rem}.read-more{color:#2563eb;font-size:.9rem}.article-page time{color:#94a3b8;font-size:.9rem}.article-p{font-size:1.05rem;line-height:1.7}.article-cta{flex-wrap:wrap;gap:1rem;margin-top:2rem;display:flex}.back-link{margin-bottom:1rem;font-size:.9rem;display:inline-block}.site-footer{text-align:center;color:#64748b;border-top:1px solid #e2e8f0;flex-direction:column;gap:.5rem;padding:2rem;display:flex}[dir=rtl] .nav,[dir=rtl] .hero-cta,[dir=rtl] .article-cta{flex-direction:row-reverse}.hero-image{object-fit:cover;border:1px solid #e2e8f0;border-radius:12px;width:100%;max-height:360px;margin-bottom:1rem}.checkbox-label{cursor:pointer;align-items:center;gap:.5rem;font-weight:500;display:flex}.checkbox-label input{width:auto}.demo-result .btn-ghost{margin-bottom:1rem}@media (width<=640px){.site-header{padding:1rem}}