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sans-serif)}.fh-size-product *,.fh-size-product *:before,.fh-size-product *:after{box-sizing:border-box}.fh-size-product button,.fh-size-product input,.fh-size-product select{font:inherit}.fh-size-product button{-webkit-tap-highlight-color:transparent}.fh-size-product a{color:inherit}.fh-size-product img{display:block;max-width:100%}.fh-size-product__page{width:min(1560px,calc(100% - 36px));margin:0 auto}.fh-size-product__breadcrumbs{display:flex;align-items:center;flex-wrap:wrap;gap:7px;min-height:28px;margin:0 0 18px;color:#244d74;font-size:13px;line-height:1.35;font-weight:600}.fh-size-product__breadcrumbs a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.fh-size-product__breadcrumbs a:hover{color:var(--fh-size-blue-dark)}.fh-size-product__breadcrumbs [aria-current=page]{color:var(--fh-size-muted);text-decoration:none}.fh-size-product__layout{display:grid;grid-template-columns:minmax(280px,.92fr) minmax(470px,1.24fr) minmax(310px,.82fr);align-items:start;gap:26px}.fh-size-product__gallery-column,.fh-size-product__config-column,.fh-size-product__purchase-column{min-width:0}.fh-size-product__gallery-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--fh-size-border);border-radius:var(--fh-size-radius);box-shadow:var(--fh-size-shadow)}.fh-size-product__main-media{display:grid;place-items:center;width:100%;min-height:430px;padding:24px 24px 70px;background:radial-gradient(circle at 50% 45%,rgba(61,169,245,.07),transparent 50%),#fff}.fh-size-product__main-image{width:100%;max-width:470px;max-height:390px;height:auto;object-fit:contain;object-position:center}.fh-size-product__placeholder{width:100%;min-height:330px;color:#12314d2e}.fh-size-product__expand{position:absolute;top:12px;right:12px;z-index:3;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:7px 11px;color:var(--fh-size-navy);background:#ffffffed;border:1px solid var(--fh-size-border);border-radius:9px;cursor:pointer;font-size:12px;line-height:1;font-weight:750;box-shadow:0 6px 18px #0b315c14;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.fh-size-product__expand:hover{transform:translateY(-1px);border-color:#3da9f56b;box-shadow:0 10px 24px #0b315c1f}.fh-size-product__expand svg{width:16px;height:16px;flex:0 0 16px}.fh-size-product__image-band{position:absolute;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:58px;padding:11px 16px;color:#fff;background:linear-gradient(90deg,var(--fh-size-navy-dark) 0%,#173f65 100%);font-size:19px;line-height:1;font-weight:850;letter-spacing:-.025em}.fh-size-product__image-band strong{display:inline-flex;align-items:center;justify-content:center;min-width:76px;min-height:34px;padding:7px 11px;color:var(--fh-size-navy-dark);background:#fff;border-radius:999px;font-size:12px;letter-spacing:0;text-align:center}.fh-size-product__thumbnails{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:12px}.fh-size-product__thumbnail{display:grid;place-items:center;min-width:0;aspect-ratio:1;padding:5px;overflow:hidden;background:#fff;border:1px solid var(--fh-size-border);border-radius:9px;cursor:pointer;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}.fh-size-product__thumbnail:hover,.fh-size-product__thumbnail.is-active{border-color:var(--fh-size-blue);box-shadow:0 0 0 2px #3da9f524}.fh-size-product__thumbnail:hover{transform:translateY(-1px)}.fh-size-product__thumbnail img{width:100%;height:100%;object-fit:contain}.fh-size-product__intro{margin-top:16px;padding:0 2px;color:#253c52;font-size:14px;line-height:1.58;font-weight:500}.fh-size-product__intro p{margin:0}.fh-size-product__wrong-size{display:inline-flex;align-items:center;gap:8px;margin-top:14px;color:var(--fh-size-blue-dark);font-size:13px;line-height:1.35;font-weight:750;text-decoration:underline;text-underline-offset:3px}.fh-size-product__wrong-size svg{width:18px;height:18px;flex:0 0 18px}.fh-size-product__config-column{width:100%}.fh-size-product__rating{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin:2px 0 6px;color:var(--fh-size-navy);font-size:13px;line-height:1.2;font-weight:750}.fh-size-product__stars{color:var(--fh-size-gold);font-size:18px;line-height:1;letter-spacing:.8px}.fh-size-product__rating strong{font-weight:850}.fh-size-product__rating-divider{color:#12314d47}.fh-size-product__rating a{color:var(--fh-size-navy);text-decoration:underline;text-underline-offset:3px}.fh-size-product__title{margin:0;color:var(--fh-size-navy-dark);font-size:clamp(31px,2.6vw,42px);line-height:1.02;font-weight:850;letter-spacing:-.045em}.fh-size-product__actual-size{margin:8px 0 0;color:#223b52;font-size:16px;line-height:1.4;font-weight:500}.fh-size-product__actual-size strong{font-weight:800}.fh-size-product__step{margin-top:28px}.fh-size-product__step--quantity{margin-top:26px}.fh-size-product__step-heading{display:flex;align-items:center;gap:10px;min-height:38px;margin:0 0 12px}.fh-size-product__step-heading h2{margin:0;color:var(--fh-size-navy-dark);font-size:18px;line-height:1.2;font-weight:850;letter-spacing:-.025em}.fh-size-product__step-number{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex:0 0 34px;color:#fff;background:#3da9f5;border-radius:6px;font-size:17px;line-height:1;font-weight:900}.fh-size-product__guide-link{display:inline-flex;align-items:center;gap:5px;margin-left:auto;color:var(--fh-size-blue-dark);font-size:13px;line-height:1.2;font-weight:750;text-decoration:underline;text-underline-offset:3px}.fh-size-product__guide-link:empty{display:none}.fh-size-product__guide-link svg{width:15px;height:15px;flex:0 0 15px}.fh-size-product__quality-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.fh-size-product__quality-card{position:relative;display:flex;flex-direction:column;align-items:center;min-width:0;min-height:180px;padding:18px 11px 13px;color:var(--fh-size-text);background:#fff;border:1px solid var(--fh-size-border);border-radius:8px;cursor:pointer;text-align:center;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}.fh-size-product__quality-card:hover{transform:translateY(-2px);border-color:#3da9f57a;box-shadow:0 12px 28px #0b315c17}.fh-size-product__quality-card.is-active{background:#f4f9ff;border-color:var(--fh-size-navy-dark);box-shadow:inset 0 0 0 1px var(--fh-size-navy-dark),0 12px 30px #0b315c1a}.fh-size-product__quality-card.is-active:after{content:"\2713";position:absolute;top:7px;right:7px;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;color:#fff;background:var(--fh-size-green);border-radius:50%;font-size:12px;font-weight:900}.fh-size-product__quality-badge{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 11px;margin-bottom:15px;color:#fff;background:#3da9f5;border-radius:5px;font-size:13px;line-height:1;font-weight:900;text-transform:uppercase}.fh-size-product__quality-card--merv11 .fh-size-product__quality-badge{background:var(--fh-size-green)}.fh-size-product__quality-card--merv13 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