.catalog-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 48px; padding-block: 48px 60px; align-items: start; }
.catalog-nav { position: sticky; top: 120px; border-top: 3px solid var(--blue); }
.catalog-nav > span { display: block; font-size: 14px; color: #718196; padding: 19px 17px; border-bottom: 1px solid #e1e8ef; }
.catalog-nav a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 17px; border-bottom: 1px solid #e1e8ef; font-size: 16px; line-height: 1.5; }
.catalog-nav a > span { color: #7994ac; }
.catalog-nav a[aria-current=page] { background: #eef5fc; color: #286eab; font-weight: 650; }
.catalog-nav a:hover { color: var(--blue); background: #f3f7fb; }
.catalog-search { padding: 20px 24px; background: #f3f6fa; border: 1px solid #e0e8ef; margin-bottom: 36px; }
.catalog-search label { display: block; font-size: 15px; font-weight: 600; margin-bottom: 11px; }
.catalog-search > div { display: flex; gap: 8px; }
.catalog-search input { width: 100%; min-width: 0; border: 1px solid #cdd9e5; background: #fff; padding: 12px 14px; font-size: 16px; color: var(--ink); border-radius: 0; }
.catalog-search input::placeholder { color: #708196; }
.catalog-search button { background: #e4edf6; padding: 10px 13px; font-size: 14px; white-space: nowrap; }
.catalog-search p { font-size: 13px; color: #5c7287; margin-top: 10px; }
.catalog-category { scroll-margin-top: 116px; }
.catalog-category + .catalog-category { margin-top: 40px; }
.catalog-heading { margin-bottom: 25px; }
.catalog-heading h2 { font-size: 30px; letter-spacing: -.8px; }
.catalog-heading p { margin-top: 12px; color: #607386; font-size: 16px; }
.catalog-heading .eyebrow { font-size: 11px; margin-bottom: 10px; }
.catalog-subnav { display: flex; flex-wrap: wrap; border-bottom: 1px solid #dbe5ef; gap: 8px; margin-bottom: 26px; }
.catalog-subnav a { padding: 12px 16px; font-size: 16px; color: #637b90; border-bottom: 3px solid transparent; }
.catalog-subnav a[aria-current=page] { color: #286eab; border-color: var(--blue); font-weight: 650; }
.catalog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.catalog-card { border: 1px solid #dfe7ef; background: #fff; min-width: 0; }
.catalog-card button { width: 100%; height: 100%; display: flex; flex-direction: column; padding: 0; background: #fff; text-align: left; }
.catalog-card:hover { border-color: #88aed0; box-shadow: 0 5px 18px #1a3b5c0b; }
.catalog-card-photo { width: 100%; padding: 18px 20px 5px; height: 200px; display: grid; place-items: center; }
.catalog-card-photo img { max-width: 100%; height: 175px; width: 175px; object-fit: contain; }
.catalog-card-copy { padding: 21px; flex: 1; width: 100%; display: flex; flex-direction: column; }
.catalog-card-copy > span { color: #637f97; font-size: 12px; }
.catalog-card-copy h3 { font-size: 22px; line-height: 1.4; margin-top: 9px; letter-spacing: -.5px; overflow-wrap: anywhere; }
.catalog-card-copy p { font-size: 14px; color: #607386; margin-top: 13px; line-height: 1.8; overflow-wrap: anywhere; }
.catalog-card-copy b { font-weight: 500; color: #317ab5; font-size: 14px; padding-top: 22px; margin-top: auto; display: flex; justify-content: space-between; }
.catalog-advice { padding: 28px; background: #f2f6fa; border-top: 2px solid #cfdfed; margin-top: 32px; }
.catalog-advice h3 { font-size: 23px; }
.catalog-advice p { color: #5b7287; font-size: 15px; margin-top: 15px; }
.catalog-advice ol { padding: 0; margin: 24px 0 0; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); counter-reset: step; gap: 15px; }
.catalog-advice li { font-size: 15px; color: #304e67; counter-increment: step; }
.catalog-advice li::before { content: '0' counter(step); display: block; font-size: 12px; color: #5586ad; margin-bottom: 9px; }
.catalog-methods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; }
.catalog-methods h4 { margin: 0; font-size: 17px; }
.catalog-methods p { margin-top: 8px; }
.catalog-guide { margin-top: 24px; background: #fff; border: 1px solid #dce6ef; }
.catalog-guide summary { position: relative; list-style: none; cursor: pointer; padding: 17px 43px 17px 20px; font-size: 17px; font-weight: 600; line-height: 1.7; color: #304f6a; }
.catalog-guide summary::-webkit-details-marker { display: none; }
.catalog-guide summary::after { content: '+'; position: absolute; right: 20px; color: #5485ac; }
.catalog-guide[open] summary::after { content: '−'; }
.catalog-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; padding: 3px 20px 23px; }
.catalog-guide-grid h4 { font-size: 16px; margin: 0; color: #304f6a; }
.catalog-guide-grid p { margin-top: 9px; font-size: 15px; line-height: 1.9; }
.catalog-process-title { font-size: 17px; margin: 28px 0 0; }
.catalog-advice .catalog-order-steps { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.catalog-contact-actions, .catalog-detail-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.catalog-contact-actions { flex-shrink: 0; }
.catalog-contact-actions .button, .catalog-detail-actions .button { font-size: 15px; }
.catalog-contact { border-top: 1px solid #dfe7ef; padding-top: 32px; margin-top: 44px; display: flex; gap: 25px; justify-content: space-between; align-items: center; }
.catalog-contact h2 { font-size: 23px; letter-spacing: -.5px; }
.catalog-contact p { font-size: 14px; color: #607386; margin-top: 13px; }
.catalog-contact .button { white-space: nowrap; }
.catalog-detail-photo { display: block; width: 220px; height: 220px; object-fit: contain; margin: 20px auto; }
.catalog-specs { border-top: 1px solid #dae4ee; margin: 15px 0 0; }
.catalog-specs > div { display: grid; grid-template-columns: 115px minmax(0, 1fr); gap: 20px; border-bottom: 1px solid #e2eaf1; padding: 14px 0; font-size: 15px; line-height: 1.7; }
.catalog-specs dt { color: #546d83; }
.catalog-specs dd { margin: 0; overflow-wrap: anywhere; }
#catalog-dialog .catalog-model-notice { font-size: 14px; color: #687d91; margin: 23px 0; }
.catalog-page [hidden] { display: none !important; }
@media (max-width: 500px) { .catalog-guide-grid { grid-template-columns: 1fr; gap: 22px; } .catalog-advice .catalog-order-steps { grid-template-columns: 1fr 1fr; } .catalog-contact-actions { width: 100%; } }
@media (max-width: 1150px) { .catalog-layout { gap: 30px; grid-template-columns: 195px minmax(0, 1fr); } .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .catalog-contact { flex-direction: column; align-items: flex-start; } }
@media (max-width: 800px) { .catalog-layout { display: block; padding-top: 28px; } .catalog-nav { display: flex; flex-wrap: wrap; position: static; gap: 8px; border: 0; margin-bottom: 28px; } .catalog-nav > span { display: none; } .catalog-nav a { padding: 10px 13px; border: 1px solid #dce6ef; font-size: 14px; } .catalog-nav a > span { display: none; } .catalog-search { margin-bottom: 29px; } .catalog-grid { gap: 16px; } .catalog-methods { grid-template-columns: 1fr; gap: 18px; } }
@media (max-width: 500px) { .catalog-heading h2 { font-size: 27px; } .catalog-grid { grid-template-columns: 1fr; } .catalog-card button { flex-direction: row; align-items: stretch; } .catalog-card-photo { width: 115px; flex-shrink: 0; height: auto; min-height: 190px; padding: 15px 10px; } .catalog-card-photo img { width: 100%; height: auto; } .catalog-card-copy { padding: 19px 17px; } .catalog-card-copy h3 { font-size: 22px; } .catalog-search { padding: 18px; } .catalog-search > div { flex-wrap: wrap; } .catalog-search input { font-size: 15px; } .catalog-subnav { gap: 0; } .catalog-subnav a { padding: 11px 12px; font-size: 15px; } .catalog-advice { padding: 23px; } .catalog-advice ol { grid-template-columns: 1fr 1fr; gap: 22px 16px; } .catalog-specs > div { grid-template-columns: 85px minmax(0, 1fr); gap: 13px; font-size: 14px; } .catalog-contact h2 { font-size: 22px; } }