.toc-container.active{right:0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:25px;margin:40px 0}.feature-box{background:#fff;padding:30px;border-radius:12px;box-shadow:0 2px 15px rgba(0,0,0,.05);transition:all .3s ease;border:1px solid #f3f4f6;border-right:4px solid #3b82f6}.feature-box:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.12)}.feature-icon{font-size:2.5rem;margin-bottom:15px;display:block}.feature-title{font-weight:600;color:#1f2937;margin-bottom:12px;font-size:1.2rem}.feature-description{color:#6b7280;line-height:1.6}.standards-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin:30px 0}.standard-item{background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.05);text-align:center;border:1px solid #e5e7eb;transition:all .2s ease}.standard-item:hover{border-color:#3b82f6;box-shadow:0 4px 15px rgba(59,130,246,.1)}.standard-name{font-weight:600;color:#1e40af;font-size:1.1rem;margin-bottom:8px}.standard-description{color:#6b7280;font-size:.9rem}@media (max-width:768px){.features-grid{grid-template-columns:1fr}}