{"niche":"长期使用的最佳汽车安全座椅底座有哪些？","description":"What are the best car seat bases for extended use?","products":[{"brand":"Silver Cross","model":"Motion 3 All Size 360","price_gbp":166.02,"origin_country":null,"specs":{"weight":"31.7","height_limit":"57.1","weight_limit":"39.7","compatibility":"Yes","seat_capacity":"Rear-facing: birth to 18kg; forward-facing: 76-145cm","installation_type":"Integrated ISOFIX base and support leg"},"confidence_score":null,"sources":[{"label":"Silver Cross","url":"https://www.silvercrossbaby.com/products/motion-all-size-360-black","currency":"USD","source_country":"US","price":225.0,"price_gbp":166.02,"scraped_at":"2026-08-29T19:21:26.078703"},{"label":"Kiddies Kingdom","url":"https://www.kiddies-kingdom.com/every-stage-car-seat/65683-silver-cross-motion-3-all-size-360-group-0123-car-seat-iconic-black.html","currency":"USD","source_country":"US","price":225.0,"price_gbp":166.02,"scraped_at":"2026-08-29T19:21:26.078703"},{"label":"Natural Baby Shower","url":"https://www.naturalbabyshower.co.uk/collections/silver-cross-motion-all-size-360","currency":"USD","source_country":"US","price":225.0,"price_gbp":166.02,"scraped_at":"2026-08-29T19:21:26.078703"}],"summary":"The Silver Cross Motion 3 All Size 360 is a rotating all-stage car seat for children from birth to approximately 12 years, with a 40-145cm height range. It supports extended rear-facing travel up to 18kg, then converts to forward-facing and high-back booster use with an adult seat belt.","ideal_for":"适合长期使用，因为它覆盖从出生至 145cm 身高范围，支持延长后向乘坐至 18kg，并可转换为高背增高座椅，同时保留其集成式 360 度 ISOFIX 底座。"},{"brand":"Nuna","model":"EXEC All-in-One Car Seat","price_gbp":752.0,"origin_country":null,"specs":{"weight":"26.6","height_limit":"49 in harness / 38-57 in booster","weight_limit":"120","compatibility":"Yes","seat_capacity":"5-50 lbs / 25-65 lbs","installation_type":"Seat belt or lower anchors"},"confidence_score":null,"sources":[{"label":"Dimples","url":"https://www.dimples.co.nz/products/exec-3","currency":"USD","source_country":"US","price":1019.15,"price_gbp":752.0,"scraped_at":"2026-08-29T19:22:03.236402"}],"summary":"The Nuna EXEC is a premium all-in-one car seat that transitions from rear-facing to forward-facing and high-back booster use. It suits families seeking extended use, with an adjustable leg rest, anti-rebound panel, steel frame, side-impact protection, and harness use up to 49 in.","ideal_for":"适合长期使用，因为它支持 5-50 lbs 的后向式使用、25-65 lbs 的前向式使用，以及 40-120 lbs 且身高为 38-57 in 的高背增高座椅使用。"},{"brand":"Maxi-Cosi","model":"Emerald 360 Pro All-in-One Car Seat","price_gbp":250.14,"origin_country":null,"specs":{"weight":"34.35","height_limit":"59.06","weight_limit":"79.37","compatibility":"Yes","seat_capacity":"Rear-facing birth to 4 years; forward-facing 15 months to 12 years","installation_type":"ISOFIX + support leg"},"confidence_score":null,"sources":[{"label":"Maxi-Cosi UK","url":"https://www.maxi-cosi.co.uk/car-seats/emerald-360-pro","currency":"USD","source_country":"US","price":399.99,"price_gbp":295.14,"scraped_at":"2026-08-29T19:22:03.236402"},{"label":"John Lewis","url":"https://www.johnlewis.com/maxi-cosi-emerald-360-pro-i-size-car-seat-authentic-black/p112906398","currency":"USD","source_country":"US","price":399.99,"price_gbp":295.14,"scraped_at":"2026-08-29T19:22:03.236402"},{"label":"Olivers BabyCare","url":"https://www.oliversbabycare.co.uk/product/maxi-cosi-emerald-360-pro-car-seat-authentic-black/","currency":"USD","source_country":"US","price":339.0,"price_gbp":250.14,"scraped_at":"2026-08-29T19:22:03.236402"}],"summary":"The Maxi-Cosi Emerald 360 Pro is an all-in-one car seat designed for children from birth to 12 years, with rear-facing, forward-facing, and booster modes. Its integrated ISOFIX base, 360-degree rotation, SlideTech pull-out feature, five-point harness, and side-impact protection make it well suited to families seeking long-term convenience and safety.","ideal_for":"它适合长期使用，可容纳身高 40-150 cm、体重 0-36 kg 的儿童，支持 4 岁前反向乘坐，并可转换为高背增高座椅，适用于 12 岁以内的儿童。"}]}