:root{--blue:#143f8f;--red:#d8000f;--ink:#111827;--muted:#64748b;--line:#dbe3ef;--bg:#f4f6f9;--soft:#f8fafc}*{box-sizing:border-box}body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}video,iframe,table{max-width:100%!important}.previewArticle img,.previewArticle video,.previewArticle iframe{height:auto!important}.previewArticle table{width:100%!important;display:block;overflow-x:auto;border-collapse:collapse}.previewHeader{background:#fff;border-bottom:1px solid #e6ebf2;box-shadow:0 4px 14px rgba(15,23,42,.06);position:sticky;top:0;z-index:20}.previewHeaderInner{width:min(1420px,calc(100% - 48px));margin:0 auto;height:92px;display:flex;align-items:center;gap:28px}.previewLogo img{width:250px}.previewNav{display:flex;align-items:center;gap:22px;flex:1}.previewNavLink{font-weight:700;font-size:16px;white-space:nowrap}.previewNavLink.is-active,.previewNavLink:hover{color:var(--red)}.previewHeaderActions{display:flex;align-items:center;gap:12px}.previewHeaderPhone{font-size:22px;font-weight:900;color:var(--red);white-space:nowrap}.previewHeaderPlan{background:var(--blue);color:#fff;padding:10px 16px;font-weight:700}.previewMain{width:min(1420px,calc(100% - 48px));margin:0 auto;padding:34px 0 56px}.previewHero{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.88fr);gap:24px;align-items:stretch}.previewHeroText,.previewHeroPanel,.previewBlock,.previewDetailHero,.previewContentGrid,.previewCatalogSection{background:#fff;border:1px solid #e5ebf3;box-shadow:0 12px 28px rgba(15,23,42,.06)}.previewHeroText{padding:44px}.previewHeroText span,.previewBlockHead span,.previewDetailTop span{color:var(--red);font-weight:900}.previewHeroText h1{font-size:42px;line-height:1.15;margin:12px 0 16px}.previewHeroText p{font-size:18px;color:#334155;max-width:760px}.previewHeroActions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.previewHeroActions a,.previewDetailActions a,.previewProductActions a,.previewSectionHead>a,.previewAsideCard a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border:1px solid var(--blue);font-weight:800;color:var(--blue)}.previewHeroActions a:first-child,.previewDetailActions a:first-child,.previewProductActions a:last-child,.previewAsideCard a{background:var(--red);border-color:var(--red);color:#fff}.previewHeroPanel{padding:28px}.previewHeroPanel>strong{display:block;font-size:22px;margin-bottom:16px}.previewPrimaryGrid{display:grid;gap:14px}.previewPrimaryCard{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;border:1px solid var(--line);padding:12px;background:var(--soft)}.previewPrimaryCard img{width:120px;height:92px;object-fit:contain;background:#fff}.previewPrimaryCard span{display:block;font-size:20px;font-weight:900;color:var(--blue)}.previewPrimaryCard strong{font-size:14px;color:#475569}.previewBlock{margin-top:28px;padding:30px}.previewBlockHead{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:22px}.previewBlockHead h2{font-size:28px;margin:4px 0 0}.previewScenarioGrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.previewScenarioGrid a{border:1px solid var(--line);padding:18px;background:var(--soft);min-height:130px}.previewScenarioGrid strong{display:block;font-size:20px;color:var(--blue);margin-bottom:8px}.previewScenarioGrid span{color:#475569}.previewCategoryNav{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}.previewCategoryNav a{border:1px solid var(--line);padding:9px 18px;background:#fff;font-weight:700}.previewCatalogSection{margin-top:24px;padding:24px}.previewSectionHead{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.previewSectionHead span{display:inline-flex;background:var(--blue);color:#fff;font-weight:900;padding:4px 9px;margin-bottom:8px}.previewSectionHead h2{font-size:30px;margin:0}.previewSectionHead p{margin:4px 0 0;color:#475569}.previewProductGrid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.previewProductCard{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;min-height:100%}.previewProductImage{height:230px;padding:18px;background:linear-gradient(#fff,#f8fafc);display:flex;align-items:center;justify-content:center}.previewProductImage img{max-height:200px;object-fit:contain}.previewProductBody{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}.previewProductModel{font-weight:900;color:var(--red);font-size:14px}.previewProductBody h3{font-size:19px;line-height:1.35;margin:0}.previewProductBody p{margin:0;color:#475569;min-height:54px}.previewProductBody em{font-style:normal;color:#64748b;font-size:13px}.previewProductActions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}.previewProductActions a{min-height:38px;padding:0 10px;font-size:14px}.previewBreadcrumb{font-size:14px;color:#64748b;margin-bottom:18px}.previewBreadcrumb a{color:var(--blue);font-weight:700}.previewDetailHero{display:grid;grid-template-columns:500px 1fr;gap:34px;padding:28px}.previewDetailImage{background:#fff;border:1px solid var(--line);padding:22px;display:flex;align-items:center;justify-content:center;min-height:500px}.previewDetailImage img{max-height:460px;object-fit:contain}.previewDetailTop{display:flex;align-items:center;justify-content:space-between;gap:12px}.previewDetailTop span{font-size:24px}.previewDetailTop em{font-style:normal;color:#64748b}.previewDetailInfo h1{font-size:38px;line-height:1.2;margin:14px 0}.previewDetailInfo>p{font-size:17px;color:#334155}.previewFeatureTags{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.previewFeatureTags span{background:var(--red);color:#fff;font-weight:800;text-align:center;padding:10px}.previewSpecGrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.previewSpecGrid li{background:#fff;padding:16px}.previewUsage{margin:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;display:flex;gap:16px}.previewUsage strong{white-space:nowrap}.previewPromise{border-left:4px solid var(--red);background:#fff7f7;padding:18px;margin-bottom:20px}.previewPromise strong{font-size:20px}.previewPromise ul{margin:10px 0 0;padding-left:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:6px 18px}.previewDetailActions{display:flex;gap:14px;flex-wrap:wrap}.previewContentGrid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;margin-top:28px;padding:28px}.previewArticle{min-width:0;overflow:hidden}.previewArticle h2{font-size:26px;color:var(--blue);margin-top:26px}.previewArticle p{color:#334155}.previewArticle img{height:auto;margin:12px auto}.previewAside{display:grid;align-content:start;gap:16px}.previewAsideCard{border:1px solid var(--line);padding:18px;background:var(--soft)}.previewAsideCard strong{display:block;font-size:20px;color:var(--blue);margin-bottom:8px}.previewFooter{background:#1f2937;color:#e5e7eb;margin-top:40px}.previewFooterInner{width:min(1420px,calc(100% - 48px));margin:0 auto;padding:30px 0;display:grid;grid-template-columns:1.2fr 1fr 1fr 1.8fr;gap:16px}.previewCopyright{text-align:center;border-top:1px solid rgba(255,255,255,.14);padding:14px;color:#cbd5e1}@media(max-width:1100px){.previewHeaderInner{height:auto;min-height:86px;flex-wrap:wrap;padding:12px 0}.previewNav{order:3;width:100%;overflow-x:auto}.previewHero,.previewDetailHero,.previewContentGrid{grid-template-columns:1fr}.previewScenarioGrid,.previewProductGrid{grid-template-columns:repeat(2,1fr)}.previewDetailImage{min-height:360px}.previewFooterInner{grid-template-columns:1fr 1fr}}@media(max-width:640px){.previewHeaderInner,.previewMain,.previewFooterInner{width:min(100% - 24px,1420px)}.previewLogo img{width:190px}.previewHeaderActions{width:100%;justify-content:space-between}.previewHeaderPhone{font-size:18px}.previewHeroText,.previewHeroPanel,.previewBlock,.previewDetailHero,.previewContentGrid,.previewCatalogSection{padding:18px}.previewHeroText h1,.previewDetailInfo h1{font-size:30px}.previewBlockHead,.previewSectionHead,.previewDetailTop{display:block}.previewPrimaryCard{grid-template-columns:96px 1fr}.previewPrimaryCard img{width:96px;height:80px}.previewScenarioGrid,.previewProductGrid,.previewFeatureTags,.previewSpecGrid,.previewPromise ul,.previewFooterInner{grid-template-columns:1fr}.previewProductImage{height:210px}.previewUsage{display:block}.previewDetailImage{min-height:280px}.previewDetailActions a,.previewHeroActions a{width:100%}}
.header{position:sticky;top:0;z-index:2200;background:#fff;border-bottom:1px solid #e6ebf2;box-shadow:0 4px 14px rgba(15,23,42,.06)}
.header .header_w{box-sizing:border-box;display:flex;align-items:center;width:min(1500px,calc(100% - 28px));min-height:98px;margin:0 auto}
.header .logo{float:none!important;flex:0 0 auto;margin:14px 14px 14px 0!important}
.header .logo img{display:block;max-width:242px!important;width:242px;height:auto}
.header .nav{float:none!important;display:flex!important;align-items:center!important;justify-content:flex-start!important;flex:1 1 auto!important;min-width:0!important;width:auto!important;margin:0!important;padding:0!important;list-style:none!important;line-height:50px;overflow:visible!important}
.header .nav li,.header .dropdown{float:none!important;margin:0!important;padding:0!important;list-style:none!important}
.header .dropdown{position:relative!important;flex:0 0 auto!important;min-width:62px!important;width:auto!important}
.header .navname{display:block!important;padding:0 5px!important;color:#111827!important;font-size:15px!important;font-weight:700!important;line-height:44px!important;white-space:nowrap!important;text-decoration:none!important}
.header .navname.active,.header .navname.is-active,.header .navname:hover{color:#d90012!important}
.header .dropdown_menu{position:absolute!important;top:100%!important;left:0!important;display:none!important;min-width:136px!important;width:max-content!important;max-width:260px!important;margin:0!important;padding:6px 0!important;background:#fff!important;border:1px solid #e6ebf2!important;box-shadow:0 14px 28px rgba(15,23,42,.12)!important;z-index:2300!important}
.header .dropdown:hover .dropdown_menu{display:block!important}
.header .dropdown_menu a{display:block!important;padding:9px 14px!important;color:#1f2937!important;font-size:14px!important;font-weight:400!important;line-height:20px!important;white-space:nowrap!important;text-decoration:none!important;background:#fff!important}
.header .dropdown_menu a:hover{color:#d90012!important;background:#f5f8fc!important}
.header .headerActions{flex:0 0 auto!important;display:flex!important;align-items:center!important;gap:8px!important;margin:0 0 0 8px!important;white-space:nowrap!important}
.header .siteLangLink{flex:0 0 72px!important;display:inline-flex!important;align-items:center!important;justify-content:center!important;width:72px!important;min-width:72px!important;height:34px!important;padding:0!important;border:1px solid #d8e0ec!important;color:#18408f!important;font-size:13px!important;font-weight:700!important;text-decoration:none!important;background:#fff!important}
.header .siteHeaderPhone{flex:0 0 220px!important;display:inline-block!important;width:220px!important;height:44px!important;padding:0!important;margin:0!important;overflow:hidden!important;color:transparent!important;font-size:0!important;line-height:0!important;white-space:nowrap!important;text-indent:-9999px!important;background:url("/uploads/tel-0755-25621811.png?v=202606141835") center center / contain no-repeat!important;border:0!important}
.header .siteTools,.header .siteTools *{box-sizing:border-box!important}
.header .siteTools{flex:0 0 auto!important;display:flex!important;align-items:center!important;gap:8px!important;margin:0 0 0 8px!important;white-space:nowrap!important}
.header .siteSearch{flex:0 0 190px!important;display:flex!important;align-items:center!important;width:190px!important;height:34px!important;margin:0!important;border:1px solid #d8e0ec!important;border-radius:3px!important;background:#fff!important;overflow:hidden!important}
.header .siteSearch input{width:100%!important;min-width:0!important;height:32px!important;padding:0 9px!important;border:0!important;outline:0!important;color:#1f2937!important;font-size:13px!important;line-height:32px!important;font-family:inherit!important;background:#fff!important}
.header .siteSearch button{flex:0 0 48px!important;height:34px!important;padding:0!important;border:0!important;border-left:1px solid #d8e0ec!important;background:#18408f!important;color:#fff!important;font-size:13px!important;font-weight:700!important;cursor:pointer!important;font-family:inherit!important}
.header .siteLangSwitch{display:inline-flex!important;align-items:center!important;height:34px!important;border:1px solid #d8e0ec!important;border-radius:3px!important;overflow:hidden!important;background:#fff!important}
.header .siteLangSwitch a{display:inline-flex!important;align-items:center!important;justify-content:center!important;width:36px!important;height:32px!important;color:#334155!important;font-size:12px!important;font-weight:700!important;text-decoration:none!important;background:#fff!important}
.header .siteLangSwitch a+a{border-left:1px solid #d8e0ec!important}
.header .siteLangSwitch a.is-active{background:#18408f!important;color:#fff!important}
@media(max-width:1460px){.header .header_w{width:min(1460px,calc(100% - 24px))}.header .logo img{width:226px;max-width:226px!important}.header .siteHeaderPhone{flex-basis:206px!important;width:206px!important}.header .siteSearch{flex-basis:168px!important;width:168px!important}.header .navname{font-size:14px!important;padding:0 4px!important}.header .dropdown{min-width:58px!important}}
@media(max-width:1320px){.header .logo img{width:210px;max-width:210px!important}.header .dropdown{min-width:56px!important}.header .navname{padding:0 4px!important;font-size:14px!important}.header .siteLangLink{flex-basis:64px!important;width:64px!important;min-width:64px!important}.header .siteHeaderPhone{flex-basis:198px!important;width:198px!important}.header .siteSearch{flex-basis:148px!important;width:148px!important}}
@media(max-width:1180px){.header .header_w{flex-wrap:wrap!important;justify-content:center!important;padding:8px 0!important}.header .logo{margin:0 12px 6px 0!important}.header .nav{order:3!important;flex:0 0 100%!important;width:100%!important;justify-content:center!important;overflow-x:auto!important}.header .headerActions{margin-left:auto!important;margin-bottom:6px!important}.header .siteTools{margin-bottom:6px!important}}
@media(max-width:768px){.header .headerActions,.header .siteTools{margin-left:0!important}.header .siteHeaderPhone{flex-basis:192px!important;width:192px!important;height:38px!important}.header .siteLangLink{display:none!important}.header .siteSearch{flex-basis:min(230px,58vw)!important;width:min(230px,58vw)!important}}
@media(max-width:640px){.header .header_w{width:min(100% - 24px,1400px);min-height:86px}.header .logo img{width:190px;max-width:190px!important}.header .nav{justify-content:flex-start!important}.header .navname{padding:0 10px!important}.header .headerActions,.header .siteTools{width:100%;justify-content:center!important}.header .siteTools{flex-wrap:wrap!important}}
