:root{--ink:#0c1833;--muted:#64718b;--blue:#0752dc;--line:#e2eaf5;--soft:#f1f7ff}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:132px}body{margin:0;background:#fff;color:var(--ink);font:18px/1.8 "Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}p,h1,h2,h3,dl,dd{margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}a:focus-visible{outline:3px solid #7498ef;outline-offset:6px}a,button{-webkit-tap-highlight-color:transparent}.wrap{width:min(1280px,calc(100% - 128px));margin-inline:auto}.skip-link{position:fixed;left:24px;top:-80px;z-index:20;background:var(--blue);color:#fff;padding:8px 16px;border-radius:4px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.97);border-bottom:1px solid 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.15s}.manual-link:hover{background:#f1f6ff}.about-section{padding-top:90px;padding-bottom:44px}.company-name{font-size:32px;font-weight:700;line-height:1.5;margin-top:34px}.company-description{font-size:23px;color:#536582;line-height:1.8;margin-top:24px}.company-description p+p{margin-top:22px}.company-facts{margin-top:36px;background:var(--soft);border-radius:14px;padding:28px 38px 34px}.stats-date{font-size:16px;font-weight:700;line-height:1.6;color:var(--blue)}.stats-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;margin-top:34px}.stat{display:flex;align-items:flex-start;gap:22px;padding:0 34px;border-left:1px solid #cbdcf7}.stat:first-child{border-left:0;padding-left:20px}.stat:last-child{padding-right:0}.stat>div{display:flex;flex-direction:column;min-width:0}.stat dt{order:2;font-size:19px;color:#536582;margin-top:5px;line-height:1.65}.stat dd{font-size:46px;line-height:1.15;letter-spacing:-.04em;font-weight:700;color:var(--blue);white-space:nowrap}.stat dd 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@media(max-width:1200px){.wrap{width:calc(100% - 80px)}.header-inner{height:94px}.corporate-logo{width:260px}.brand-subtitle{font-size:23px;padding-left:20px}.site-brand{gap:20px}.header-nav{font-size:17px;gap:32px}.catalog-hero{min-height:400px}.hero-description{font-size:27px}h2{font-size:46px}.product-card{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:46px}.product-icon{width:86px;height:86px}.product-title h3{font-size:40px}.product-tagline{font-size:20px}.product-description{font-size:16px;margin-top:24px}.product-meta{gap:12px;margin-top:24px}.product-actions{margin-top:30px}.primary-button{min-height:56px;font-size:17px}.manual-link{font-size:16px;min-height:54px}.company-description{font-size:18px}.company-name{font-size:27px}.company-facts{padding:28px}.stat{gap:14px;padding-inline:24px}.stat:first-child{padding-left:0}.stat-icon{width:36px;height:36px}.stat dd{font-size:40px}.stat dt{font-size:16px}.company-locations h3{font-size:25px}.company-locations p{font-size:17px}}
@media(max-width:850px){.wrap{width:calc(100% - 48px)}.corporate-logo{width:220px}.brand-subtitle{font-size:20px;padding-left:16px}.site-brand{gap:16px}.header-nav{gap:20px;font-size:15px}.catalog-hero{min-height:340px}.hero-inner{padding-block:56px}.catalog-hero h1{font-size:56px}.hero-description{font-size:23px}.hero-button{min-width:210px;margin-top:28px}.section-heading{align-items:flex-start;gap:22px}.section-heading>p{max-width:360px;font-size:15px}h2{font-size:38px}.product-card{gap:28px;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}.product-icon{width:66px;height:66px;margin-bottom:16px}.product-title h3{font-size:34px}.product-tagline{font-size:17px}.product-description{font-size:15px;margin-top:20px}.product-meta{font-size:12px;gap:10px;margin-top:20px}.product-actions{gap:12px;margin-top:24px}.primary-button{min-height:52px}.manual-link{min-height:50px;font-size:14px}.about-section{padding-top:72px}.company-name{font-size:24px}.company-description{font-size:17px}.stats-grid{gap:0}.stat{gap:10px;padding-inline:16px}.stat-icon{width:30px;height:30px}.stat dd{font-size:34px}.stat dd span{font-size:22px}.stat dt{font-size:14px}.company-locations{gap:16px}.company-locations h3{font-size:22px}.company-locations p{font-size:16px}}
@media(max-width:650px){html{scroll-padding-top:132px}.wrap{width:calc(100% - 40px)}.header-inner{height:auto;min-height:112px;flex-wrap:wrap;gap:4px;padding-top:16px}.site-brand{gap:14px}.corporate-logo{width:200px}.brand-subtitle{font-size:18px;padding-left:14px}.header-nav{width:100%;justify-content:flex-end;gap:28px;height:40px;font-size:14px}.header-nav a{padding-top:0}.catalog-hero{min-height:320px;background-position:45% center}.hero-inner{padding-block:48px}.catalog-hero h1{font-size:42px;letter-spacing:-.045em}.hero-description{font-size:18px;margin-top:18px}.hero-button{min-width:180px;min-height:48px;font-size:16px;padding:10px 22px;margin-top:26px}.primary-button{gap:28px}.ui-icon{width:21px;height:21px}.products-section{padding-top:42px}.section-mark{height:15px;margin-bottom:14px}.section-mark img{width:34px;height:16px}.section-mark img+img{width:24px}h2{font-size:32px}.section-heading{display:block;margin-bottom:26px}.section-heading>p{text-align:left;font-size:14px;max-width:none;margin-top:18px;padding-bottom:0}.product-card{display:block}.product-visual{padding:8px;border-radius:10px}.product-content{padding-top:26px}.product-title{display:flex;align-items:center;gap:16px}.product-icon{width:64px;height:64px;margin-bottom:0}.product-title h3{font-size:36px}.product-tagline{font-size:17px;margin-top:4px}.product-description{font-size:16px;margin-top:24px}.product-meta{font-size:12px;margin-top:22px;gap:15px}.product-meta .ui-icon{width:17px;height:17px}.product-actions{margin-top:26px}.product-actions .primary-button{font-size:16px}.manual-link{font-size:15px}.product-grid{gap:60px}.about-section{padding-top:56px;padding-bottom:32px}.company-name{font-size:23px;margin-top:24px}.company-description{font-size:16px;line-height:1.9;margin-top:20px}.company-description p+p{margin-top:18px}.company-facts{padding:24px;margin-top:28px;border-radius:12px}.stats-date{font-size:14px}.stats-grid{grid-template-columns:1fr;margin-top:6px}.stat,.stat:first-child,.stat:last-child{border-left:0;border-bottom:1px solid #d4e3f8;padding:24px 0;gap:20px;align-items:center}.stat:last-child{border-bottom:0}.stat-icon{width:36px;height:36px;margin-top:0}.stat dd{font-size:36px}.stat dd span{font-size:24px}.stat dt{font-size:15px;margin-top:3px}.company-locations{border-top:1px solid #d4e3f8;margin-top:6px;padding-top:24px;gap:12px}.location-icon{width:25px;height:25px;margin-top:4px}.company-locations h3{font-size:19px;line-height:1.7}.company-locations p{font-size:15px;margin-top:12px}.footer-inner{flex-direction:column;gap:6px;font-size:12px;padding-block:22px}}
@media(max-width:360px){.corporate-logo{width:175px}.brand-subtitle{font-size:16px}.site-brand{gap:12px}.catalog-hero h1{font-size:36px}.hero-description{font-size:16px}.product-tagline{font-size:15px}.product-title h3{font-size:32px}}
/* 桌面紧凑布局：主要尺寸约收紧30%，正文和点击区域保留可读性。 */
@media(min-width:851px){html{scroll-padding-top:100px}.wrap{width:min(1120px,calc(100% - 64px))}.header-inner{height:80px;gap:20px}.site-brand{gap:18px}.corporate-logo{width:231px}.brand-subtitle{padding-left:18px;font-size:20px}.header-nav{gap:30px;font-size:14px}.catalog-hero{min-height:336px}.hero-inner{padding-block:50px 54px}.catalog-hero h1{font-size:clamp(48px,4.45vw,64px)}.hero-description{margin-top:16px;font-size:24px}.primary-button{min-height:46px;border-radius:6px;padding:10px 20px;font-size:14px;gap:26px}.ui-icon{width:18px;height:18px}.hero-button{min-width:171px;margin-top:24px}.products-section{padding-top:46px}.section-heading{gap:25px;margin-bottom:35px}.section-heading>p{max-width:600px;font-size:14px;padding-bottom:5px}.section-mark{height:16px;margin-bottom:13px}.section-mark img{width:32px;height:16px}.section-mark img+img{width:22px}h2{font-size:43px}.product-grid{gap:62px}.product-card{grid-template-columns:minmax(0,2fr) minmax(0,.9fr);gap:50px}.product-visual{padding:9px;border-radius:10px}.product-icon{width:78px;height:78px;margin-bottom:17px}.product-title h3{font-size:36px}.product-tagline{font-size:17px;margin-top:8px}.product-description{font-size:16px;margin-top:25px}.product-meta{font-size:12px;gap:14px;margin-top:23px}.meta-item{gap:5px}.meta-item .ui-icon{width:16px;height:16px}.product-actions{gap:11px;margin-top:29px}.product-actions .primary-button{gap:14px}.manual-link{min-height:44px;font-size:14px;gap:9px;border-radius:6px}.about-section{padding-top:63px;padding-bottom:32px}.company-name{font-size:23px;margin-top:24px}.company-description{font-size:17px;line-height:1.85;margin-top:18px}.company-description p+p{margin-top:16px}.company-facts{margin-top:26px;border-radius:10px;padding:22px 28px 26px}.stats-date{font-size:14px}.stats-grid{margin-top:24px}.stat{gap:16px;padding-inline:24px}.stat:first-child{padding-left:14px}.stat:last-child{padding-right:0}.stat dt{font-size:15px;margin-top:4px}.stat dd{font-size:34px}.stat dd span{font-size:20px;margin-left:5px}.stat-icon{width:34px;height:34px;margin-top:3px}.company-locations{gap:16px;margin-top:32px}.location-icon{width:24px;height:24px;margin-top:4px}.company-locations h3{font-size:21px}.company-locations p{font-size:16px;margin-top:7px}.footer-inner{padding-block:20px;font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}