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.menu-toggle{display:inline-flex}.nav{width:100%;display:flex;gap:14px}.js .nav:not(.open){display:none}.return .top{display:flex}.return .nav{padding-top:15px}.hero,.bulk .hero,.split,.return .hero .hero-copy,.template-scope{display:block;min-height:0}.hero figure{margin:25px 0 0}.hero h1{font-size:3.1rem}.grid{grid-template-columns:1fr}.steps,.bulk .steps{grid-template-columns:1fr}.section{margin-top:45px}.section-heading{display:block}.return .step{display:block}.return .step h3{margin-top:12px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.form-panel{padding:22px}.calculator .fields{grid-template-columns:1fr}.calculator{padding:20px}.route-board,.metric-list{grid-template-columns:1fr}.chapter{grid-template-columns:60px 1fr}.catalog-table{min-width:550px}.footer{padding:25px 20px}.specs th,.specs td{padding:12px 6px}.previewbar{padding:12px}.frame-shell{justify-content:start;padding:8px}.demo-note{padding:9px 18px}.previewbar 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