:root{
  --orange:#ed3f16;
  --orange-deep:#c92b0b;
  --gold:#ffb600;
  --gold-light:#ffd46a;
  --ink:#1b1b1d;
  --muted:#747474;
  --line:#e9e9e9;
  --paper:#ffffff;
  --soft:#f7f7f7;
  --dark:#141414;
  --container:1200px;
  --header:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.section{padding:96px 0}
.section.gray{background:#f7f7f7}
.section-title{text-align:center;margin:0 auto 56px;max-width:760px}
.section-title .en{font-size:16px;line-height:1;color:#888;letter-spacing:.18em;text-transform:uppercase;font-weight:600}
.section-title h2{font-size:34px;line-height:1.25;font-weight:500;margin:12px 0 17px;letter-spacing:.02em}
.section-title .rule{width:42px;height:3px;background:linear-gradient(90deg,var(--orange),var(--gold));margin:0 auto 20px}
.section-title p{font-size:15px;color:#777;margin:0}
.more-link{display:inline-flex;align-items:center;gap:18px;font-size:14px;color:#555;letter-spacing:.06em}
.more-link::after{content:"+";display:grid;place-items:center;width:28px;height:28px;border:1px solid #bbb;transition:.25s}
.more-link:hover{color:var(--orange)}
.more-link:hover::after{color:#fff;border-color:var(--orange);background:var(--orange)}

/* Header */
.site-header{position:fixed;z-index:1000;left:0;right:0;top:0;height:var(--header);border-bottom:1px solid rgba(255,255,255,.24);transition:.28s;background:rgba(0,0,0,.04)}
.site-header.scrolled,.site-header.inner{background:rgba(255,255,255,.96);border-bottom-color:#eee;box-shadow:0 6px 22px rgba(0,0,0,.05)}
.nav{height:100%;display:flex;align-items:center}
.brand{width:260px;height:72px;display:flex;align-items:center;overflow:hidden;flex:none}
.brand img{width:250px;height:62px;object-fit:contain;object-position:left center}
.nav-menu{margin-left:auto;display:flex;align-items:stretch;height:100%;gap:0}
.nav-item{position:relative;display:flex;align-items:center;height:100%;padding:0 24px;font-size:15px;color:#fff;transition:.25s}
.nav-item::after{content:"";position:absolute;left:24px;right:24px;bottom:0;height:3px;background:linear-gradient(90deg,var(--orange),var(--gold));transform:scaleX(0);transform-origin:left;transition:.25s}
.nav-item:hover::after,.nav-item.active::after{transform:scaleX(1)}
.site-header.scrolled .nav-item,.site-header.inner .nav-item{color:#222}
.dropdown{position:absolute;left:50%;top:100%;transform:translate(-50%,12px);width:170px;padding:10px;background:#fff;box-shadow:0 14px 36px rgba(0,0,0,.13);opacity:0;visibility:hidden;transition:.22s;border-top:3px solid var(--orange)}
.nav-wrap:hover .dropdown{opacity:1;visibility:visible;transform:translate(-50%,0)}
.dropdown a{display:block;padding:11px 14px;color:#333;font-size:14px;transition:.2s}
.dropdown a:hover{color:#fff;background:linear-gradient(90deg,var(--orange),var(--gold))}
.nav-tools{display:flex;align-items:center;height:100%;margin-left:10px}
.tool-btn{height:100%;min-width:54px;border:0;border-left:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;cursor:pointer;font-size:15px;transition:.2s}
.site-header.scrolled .tool-btn,.site-header.inner .tool-btn{color:#222;border-left-color:#eee}
.search-icon{width:18px;height:18px;border:2px solid currentColor;border-radius:50%;position:relative;margin:auto}
.search-icon::after{content:"";position:absolute;width:7px;height:2px;background:currentColor;right:-6px;bottom:-3px;transform:rotate(45deg)}
.menu-toggle{display:none;border:0;background:transparent;padding:10px;margin-left:auto}
.menu-toggle span{display:block;width:25px;height:2px;background:#fff;margin:6px 0}
.site-header.scrolled .menu-toggle span,.site-header.inner .menu-toggle span{background:#222}

/* Search */
.search-panel{position:fixed;z-index:1200;inset:0;background:rgba(12,12,12,.94);display:grid;place-items:center;opacity:0;visibility:hidden;transition:.25s}
.search-panel.open{opacity:1;visibility:visible}
.search-box{width:min(720px,calc(100% - 44px));position:relative}
.search-box input{width:100%;height:72px;border:0;border-bottom:2px solid rgba(255,255,255,.5);background:transparent;color:#fff;font-size:28px;outline:none;padding-right:70px}
.search-box input::placeholder{color:rgba(255,255,255,.45)}
.search-close{position:absolute;right:0;top:10px;width:48px;height:48px;border:0;background:transparent;color:#fff;font-size:34px;cursor:pointer}
.search-tabs{margin-top:22px;color:rgba(255,255,255,.55);display:flex;gap:22px;font-size:13px}

/* Hero */
.hero{height:790px;min-height:680px;position:relative;color:#fff;overflow:hidden;background:#32221c url("assets/service1.jpg") center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,12,8,.62),rgba(30,18,12,.18) 58%,rgba(30,18,12,.28)),linear-gradient(180deg,rgba(0,0,0,.24),rgba(0,0,0,.05) 52%,rgba(0,0,0,.25))}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 71% 31%,rgba(255,182,0,.30),transparent 25%);mix-blend-mode:screen}
.hero-inner{position:relative;z-index:2;height:100%;display:flex;align-items:center;padding-top:80px}
.hero-copy{width:660px}
.hero-copy .sup{font-size:17px;letter-spacing:.28em;color:rgba(255,255,255,.82);margin-bottom:16px}
.hero-copy h1{font-size:58px;line-height:1.22;font-weight:500;letter-spacing:.05em;margin:0 0 18px;text-shadow:0 4px 22px rgba(0,0,0,.2)}
.hero-copy h1 b{font-weight:600;color:var(--gold-light)}
.hero-copy .en{font-size:18px;letter-spacing:.22em;color:rgba(255,255,255,.78);margin-bottom:34px;text-transform:uppercase}
.hero-btn{display:inline-flex;height:48px;align-items:center;padding:0 30px;border:1px solid rgba(255,255,255,.75);font-size:14px;letter-spacing:.1em;transition:.25s}
.hero-btn:hover{border-color:var(--orange);background:linear-gradient(90deg,var(--orange),var(--gold))}
.hero-index{position:absolute;z-index:3;right:56px;bottom:48px;display:flex;align-items:center;gap:12px;color:#fff;font-size:13px}
.hero-index .line{width:58px;height:1px;background:rgba(255,255,255,.65)}
.hero-scroll{position:absolute;z-index:3;left:50%;bottom:36px;transform:translateX(-50%);font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.6);writing-mode:vertical-rl}
.hero-scroll::after{content:"";display:block;width:1px;height:38px;background:rgba(255,255,255,.55);margin:12px auto 0;animation:scrollLine 1.8s infinite}
@keyframes scrollLine{0%{transform:scaleY(.2);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(.2);transform-origin:bottom}}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.service-card{position:relative;height:360px;overflow:hidden;background:#222;color:#fff}
.service-card .photo{position:absolute;inset:0;background-size:cover;background-position:center;filter:saturate(.75);transition:transform .55s ease}
.service-card::before{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.06),rgba(0,0,0,.75))}
.service-card::after{content:"";position:absolute;z-index:2;inset:0;background:linear-gradient(145deg,rgba(237,63,22,.03),rgba(255,182,0,.56));opacity:0;transition:.35s}
.service-card:hover .photo{transform:scale(1.07)}
.service-card:hover::after{opacity:1}
.service-card .num{position:absolute;z-index:3;left:24px;top:24px;font-size:13px;letter-spacing:.18em}
.service-card .num::after{content:"";display:block;width:34px;height:2px;background:var(--gold);margin-top:10px}
.service-card .content{position:absolute;z-index:3;left:25px;right:20px;bottom:26px}
.service-icon{width:46px;height:46px;margin-bottom:18px;color:#fff}
.service-card h3{font-size:21px;font-weight:500;margin:0 0 8px}
.service-card p{font-size:13px;margin:0;color:rgba(255,255,255,.7)}

/* Brand wall */
.brand-wall{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #e7e7e7;border-left:1px solid #e7e7e7}
.brand-cell{height:116px;display:grid;place-items:center;background:#fff;border-right:1px solid #e7e7e7;border-bottom:1px solid #e7e7e7;color:#949494;transition:.25s;overflow:hidden}
.brand-cell b{font-family:Arial,sans-serif;font-size:25px;letter-spacing:.02em;filter:grayscale(1);opacity:.68;transition:.25s}
.brand-cell span{font-size:11px;letter-spacing:.12em;margin-top:-24px;color:#aaa}
.brand-cell:hover{background:linear-gradient(135deg,#fff8f1,#fff2d7)}
.brand-cell:hover b{color:var(--orange);filter:none;opacity:1;transform:scale(1.04)}

/* Solutions */
.solutions-wrap{height:560px;display:grid;grid-template-columns:39% 61%;background:#171717;overflow:hidden}
.solution-copy{position:relative;padding:64px 54px;color:#fff;background:linear-gradient(135deg,var(--orange-deep),var(--orange) 55%,#f27e19)}
.solution-copy::after{content:"";position:absolute;width:320px;height:320px;border:1px solid rgba(255,255,255,.16);right:-150px;top:120px;border-radius:50%;box-shadow:0 0 0 54px rgba(255,255,255,.035),0 0 0 108px rgba(255,255,255,.025)}
.solution-copy .label{font-size:13px;letter-spacing:.18em;color:rgba(255,255,255,.68)}
.solution-copy h3{font-size:38px;font-weight:500;margin:24px 0 18px;position:relative;z-index:2}
.solution-copy p{font-size:15px;color:rgba(255,255,255,.78);position:relative;z-index:2;min-height:90px}
.solution-copy .more-link{color:#fff;margin-top:22px;position:relative;z-index:2}
.solution-copy .more-link::after{border-color:rgba(255,255,255,.7)}
.solution-tabs{position:absolute;left:54px;bottom:48px;display:flex;gap:12px;z-index:3}
.solution-tabs button{width:46px;height:4px;border:0;background:rgba(255,255,255,.35);padding:0;cursor:pointer;transition:.25s}
.solution-tabs button.active{background:var(--gold);width:74px}
.solution-images{display:grid;grid-template-columns:repeat(4,1fr);height:100%}
.solution-image{position:relative;overflow:hidden;cursor:pointer;background:#222}
.solution-image img{width:100%;height:100%;object-fit:cover;filter:grayscale(.45) brightness(.66);transition:.55s}
.solution-image::before{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(0,0,0,.82))}
.solution-image::after{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(180deg,rgba(255,182,0,.05),rgba(237,63,22,.55));opacity:0;transition:.3s}
.solution-image.active::after,.solution-image:hover::after{opacity:1}
.solution-image.active img,.solution-image:hover img{transform:scale(1.06);filter:grayscale(0) brightness(.75)}
.solution-image .txt{position:absolute;z-index:2;left:20px;right:16px;bottom:25px;color:#fff}
.solution-image .txt b{display:block;font-size:18px;font-weight:500}
.solution-image .txt span{font-size:11px;color:rgba(255,255,255,.66);letter-spacing:.08em}

/* About */
.about-section{position:relative;padding:106px 0 112px;color:#fff;background:#1c1b1a;overflow:hidden}
.about-section::before{content:"";position:absolute;inset:0;background:url("assets/about.jpg") center/cover no-repeat;opacity:.18;filter:grayscale(.4)}
.about-section::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,17,16,.95),rgba(25,20,17,.76)),radial-gradient(circle at 80% 40%,rgba(255,182,0,.23),transparent 24%)}
.about-inner{position:relative;z-index:2}
.about-top{display:grid;grid-template-columns:1fr 1.25fr;gap:72px;align-items:start;margin-bottom:62px}
.about-heading .en{font-size:16px;color:rgba(255,255,255,.52);letter-spacing:.18em}
.about-heading h2{font-size:36px;font-weight:500;margin:12px 0 20px}
.about-heading .rule{width:42px;height:3px;background:linear-gradient(90deg,var(--orange),var(--gold))}
.about-copy h3{font-size:27px;font-weight:500;margin:0 0 20px}
.about-copy p{margin:0;color:rgba(255,255,255,.68);font-size:15px}
.about-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14)}
.about-card{height:260px;padding:34px 28px;background:rgba(22,22,22,.74);transition:.3s;position:relative;overflow:hidden}
.about-card::after{content:"+";position:absolute;right:28px;bottom:24px;font-size:24px;color:rgba(255,255,255,.5);transition:.25s}
.about-card:hover{background:linear-gradient(145deg,var(--orange-deep),var(--orange) 65%,#f68c1c);transform:translateY(-6px)}
.about-card:hover::after{color:#fff;transform:rotate(90deg)}
.about-card .icon{width:48px;height:48px;margin-bottom:28px;color:var(--gold-light)}
.about-card h4{font-size:19px;font-weight:500;margin:0 0 12px}
.about-card p{font-size:13px;color:rgba(255,255,255,.58);margin:0}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #ececec;background:#fff;margin-top:-1px}
.stat{height:155px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-right:1px solid #ececec}
.stat:last-child{border-right:0}
.stat strong{font-size:38px;font-weight:500;color:var(--orange);line-height:1.1}
.stat span{font-size:13px;color:#888;margin-top:10px}

/* Customers */
.customer-wall{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid #ececec;border-left:1px solid #ececec}
.customer-cell{height:90px;display:grid;place-items:center;border-right:1px solid #ececec;border-bottom:1px solid #ececec;color:#aaa;background:#fff;transition:.2s}
.customer-cell b{font-family:Arial,sans-serif;font-size:18px;letter-spacing:.04em;opacity:.65}
.customer-cell:hover{color:var(--orange);background:#fff8f2}

/* News */
.news-list{border-top:1px solid #e3e3e3}
.news-item{display:grid;grid-template-columns:120px 1fr 48px;align-items:center;border-bottom:1px solid #e3e3e3;padding:28px 12px 28px 0;transition:.25s}
.news-item:hover{padding-left:18px;background:#fffaf5}
.news-date strong{display:block;font-size:34px;font-weight:400;line-height:1;color:#444}
.news-date span{font-size:12px;color:#999}
.news-title h3{font-size:18px;font-weight:500;margin:0 0 7px}
.news-title p{font-size:13px;color:#929292;margin:0}
.news-arrow{font-size:25px;color:#aaa}
.news-item:hover .news-title h3,.news-item:hover .news-arrow{color:var(--orange)}

/* Footer */
.site-footer{background:#151515;color:#fff;padding:66px 0 22px}
.footer-top{display:grid;grid-template-columns:1.45fr .75fr .75fr 1.15fr;gap:48px}
.footer-logo{width:240px;height:78px;object-fit:contain;object-position:left center;margin-bottom:18px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.5);max-width:350px}
.footer-col h4{font-size:15px;font-weight:500;margin:0 0 20px}
.footer-col a,.footer-col p{display:block;font-size:13px;color:rgba(255,255,255,.52);margin:8px 0;transition:.2s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{display:flex;justify-content:space-between;gap:30px;border-top:1px solid rgba(255,255,255,.09);padding-top:20px;margin-top:46px;font-size:12px;color:rgba(255,255,255,.35)}

/* Floating contact */
.float-contact{position:fixed;z-index:850;right:18px;top:55%;transform:translateY(-50%);display:grid;gap:2px}
.float-contact a,.float-contact button{width:48px;height:48px;border:0;background:#fff;box-shadow:0 5px 20px rgba(0,0,0,.12);display:grid;place-items:center;color:#555;cursor:pointer;font-size:18px;transition:.2s}
.float-contact a:hover,.float-contact button:hover{color:#fff;background:linear-gradient(135deg,var(--orange),var(--gold))}
.float-contact .tip{position:absolute;right:55px;white-space:nowrap;background:#222;color:#fff;padding:9px 12px;font-size:12px;opacity:0;visibility:hidden;transition:.2s}
.float-contact a:hover .tip{opacity:1;visibility:visible}

/* Inner pages */
.inner-hero{height:420px;position:relative;color:#fff;background:#2d1c15 url("assets/hero.jpg") center 42%/cover no-repeat;display:flex;align-items:center;padding-top:88px}
.inner-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,14,10,.78),rgba(29,17,11,.28)),linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.38))}
.inner-hero .container{position:relative;z-index:2}
.inner-hero .en{font-size:14px;letter-spacing:.2em;color:rgba(255,255,255,.6)}
.inner-hero h1{font-size:44px;font-weight:500;margin:8px 0 12px}
.breadcrumb{font-size:12px;color:rgba(255,255,255,.58)}
.subnav{background:#fff;border-bottom:1px solid #eee}
.subnav .container{display:flex;justify-content:center;gap:48px;height:68px;align-items:center}
.subnav a{position:relative;font-size:14px;color:#666}
.subnav a::after{content:"";position:absolute;left:0;right:0;bottom:-24px;height:3px;background:linear-gradient(90deg,var(--orange),var(--gold));transform:scaleX(0);transition:.2s}
.subnav a:hover,.subnav a.active{color:var(--orange)}
.subnav a:hover::after,.subnav a.active::after{transform:scaleX(1)}
.prose{max-width:960px;margin:0 auto}
.prose h2{font-size:32px;font-weight:500;margin:0 0 26px;text-align:center}
.prose h3{font-size:22px;font-weight:500;margin:36px 0 14px}
.prose p{font-size:15px;color:#777;margin:0 0 18px}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.intro-photo{height:400px;object-fit:cover;width:100%}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.value-card{padding:32px;border:1px solid #eee;background:#fff;transition:.25s}
.value-card:hover{transform:translateY(-5px);box-shadow:0 15px 35px rgba(0,0,0,.07);border-color:rgba(237,63,22,.2)}
.value-card b{display:block;font-size:18px;margin-bottom:10px}
.value-card p{font-size:13px;margin:0}
.product-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{border:1px solid #ececec;background:#fff;overflow:hidden;transition:.25s}
.product-card .cover{height:220px;background-size:cover;background-position:center;position:relative}
.product-card .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(0,0,0,.35))}
.product-card .body{padding:24px}
.product-card h3{font-size:19px;font-weight:500;margin:0 0 9px}
.product-card p{font-size:13px;color:#888;margin:0}
.product-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.08)}
.quality-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:q}
.quality-step{padding:34px 24px;border:1px solid #eee;background:#fff;min-height:220px;position:relative}
.quality-step::before{counter-increment:q;content:"0" counter(q);display:block;color:var(--orange);font-size:13px;letter-spacing:.16em;margin-bottom:30px}
.quality-step h3{font-size:19px;font-weight:500;margin:0 0 10px}
.quality-step p{font-size:13px;color:#888;margin:0}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px}
.contact-info h2{font-size:32px;font-weight:500;margin:0 0 20px}
.contact-info p{font-size:14px;color:#777}
.contact-row{border-top:1px solid #eee;padding:17px 0}
.contact-row b{display:block;font-size:13px;color:#999;margin-bottom:4px}
.contact-row span{font-size:15px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.form-grid input,.form-grid textarea{width:100%;border:1px solid #e6e6e6;background:#fff;padding:15px 16px;outline:none;transition:.2s}
.form-grid input:focus,.form-grid textarea:focus{border-color:var(--orange)}
.form-grid textarea{min-height:160px;resize:vertical}
.submit-btn{border:0;height:50px;padding:0 36px;color:#fff;background:linear-gradient(90deg,var(--orange),var(--gold));cursor:pointer}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .72s ease,transform .72s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1024px){
  .nav-item{padding:0 13px}.nav-item::after{left:13px;right:13px}
  .brand{width:215px}.brand img{width:205px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .brand-wall{grid-template-columns:repeat(3,1fr)}
  .solutions-wrap{height:auto;grid-template-columns:1fr}
  .solution-copy{min-height:390px}
  .solution-images{height:360px}
  .about-cards{grid-template-columns:repeat(2,1fr)}
  .customer-wall{grid-template-columns:repeat(4,1fr)}
  .footer-top{grid-template-columns:1.2fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .intro-grid,.contact-grid{grid-template-columns:1fr}
}
@media(max-width:780px){
  :root{--header:74px}.container{width:min(100% - 30px,var(--container))}.section{padding:72px 0}
  .site-header{background:rgba(20,20,20,.24)}
  .brand{width:205px;height:62px}.brand img{width:195px;height:54px}
  .menu-toggle{display:block}
  .nav-menu{position:fixed;left:0;right:0;top:74px;height:auto;display:block;background:#fff;padding:10px 18px 22px;transform:translateY(-130%);opacity:0;transition:.28s;box-shadow:0 18px 30px rgba(0,0,0,.1)}
  .nav-menu.open{transform:none;opacity:1}
  .nav-item{height:52px;padding:0 10px;color:#222;border-bottom:1px solid #eee}.nav-item::after{display:none}
  .dropdown{display:none}.nav-tools{margin-left:0}.tool-btn{height:74px;min-width:46px;border-left-color:rgba(255,255,255,.2)}
  .hero{height:680px}.hero-copy{width:100%}.hero-copy .sup{font-size:13px}.hero-copy h1{font-size:40px}.hero-copy .en{font-size:13px;line-height:1.8}.hero-index{right:20px}.hero-scroll{display:none}
  .section-title{margin-bottom:38px}.section-title h2{font-size:29px}.section-title p{font-size:13px}
  .services-grid{grid-template-columns:1fr}.service-card{height:330px}
  .brand-wall{grid-template-columns:repeat(2,1fr)}.brand-cell{height:95px}
  .solution-copy{padding:46px 26px}.solution-copy h3{font-size:30px}.solution-tabs{left:26px}.solution-images{grid-template-columns:repeat(2,1fr);height:570px}
  .about-top{grid-template-columns:1fr;gap:30px}.about-cards{grid-template-columns:1fr}.about-card{height:230px}
  .stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid #ececec}
  .customer-wall{grid-template-columns:repeat(2,1fr)}
  .news-item{grid-template-columns:72px 1fr 24px}.news-date strong{font-size:28px}.news-title p{display:none}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}
  .float-contact{display:none}
  .subnav{overflow:auto}.subnav .container{justify-content:flex-start;gap:28px;min-width:max-content}.subnav a::after{bottom:-24px}
  .value-grid,.product-list,.quality-flow{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}
  .intro-photo{height:300px}
}

/* =========================================================
   V3 亮色优化：保留参考站结构，减少大面积灰黑与压暗滤镜
   ========================================================= */
:root{
  --ink:#26282d;
  --muted:#74777d;
  --line:#eee8e3;
  --paper:#ffffff;
  --soft:#fffaf6;
  --dark:#2a2c31;
}
body{background:#fffdfb;color:var(--ink)}
.section.gray{background:linear-gradient(180deg,#fffaf6 0%,#fff 100%)}
.section-title .en{color:#9a8073}
.section-title p{color:#72757a}

/* 首屏提亮：保留白字可读性，但去掉厚重黑灰蒙版 */
.hero{background-color:#f6d8c5;background-blend-mode:soft-light}
.hero::before{background:linear-gradient(90deg,rgba(55,24,12,.43),rgba(86,49,22,.08) 58%,rgba(78,43,18,.12)),linear-gradient(180deg,rgba(0,0,0,.08),rgba(0,0,0,.02) 54%,rgba(0,0,0,.14))}
.hero::after{background:radial-gradient(circle at 72% 30%,rgba(255,198,51,.26),transparent 27%)}
.hero-copy h1{text-shadow:0 3px 16px rgba(0,0,0,.16)}

/* 服务卡片照片提亮 */
.service-card{background:#f0e6df;box-shadow:0 12px 30px rgba(45,25,14,.06)}
.service-card .photo{filter:saturate(.96) brightness(1.10)}
.service-card::before{background:linear-gradient(180deg,rgba(0,0,0,.015),rgba(30,18,11,.53))}
.service-card::after{background:linear-gradient(145deg,rgba(237,63,22,.02),rgba(255,182,0,.38))}
.service-card p{color:rgba(255,255,255,.88)}

/* 行业解决方案：图片区域取消灰暗滤镜 */
.solutions-wrap{background:#fff8f2;box-shadow:0 18px 50px rgba(95,55,28,.08)}
.solution-copy{background:linear-gradient(135deg,#ef431b 0%,#fa661d 58%,#ffae16 100%)}
.solution-image{background:#f4eee8}
.solution-image img{filter:grayscale(.10) brightness(.94) saturate(.96)}
.solution-image::before{background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(30,18,12,.57))}
.solution-image::after{background:linear-gradient(180deg,rgba(255,182,0,.02),rgba(237,63,22,.35))}
.solution-image.active img,.solution-image:hover img{filter:grayscale(0) brightness(1.02) saturate(1.04)}

/* 关于我们：由深灰整块改为明亮暖白，卡片保留品牌强调色 */
.about-section{color:var(--ink);background:#fff8f3}
.about-section::before{opacity:.14;filter:saturate(.7) brightness(1.22)}
.about-section::after{background:linear-gradient(90deg,rgba(255,253,251,.98),rgba(255,248,242,.88)),radial-gradient(circle at 82% 36%,rgba(255,182,0,.14),transparent 27%)}
.about-heading .en{color:#a08070}
.about-copy p{color:#6f7378}
.about-cards{gap:16px;background:transparent}
.about-card{background:rgba(255,255,255,.93);border:1px solid #f0e4dc;box-shadow:0 12px 34px rgba(79,43,22,.07);color:var(--ink)}
.about-card::after{color:#b9aaa1}
.about-card .icon{color:var(--orange)}
.about-card p{color:#74777d}
.about-card:hover{color:#fff;background:linear-gradient(145deg,#df3512,#ef4b19 64%,#f7941e);box-shadow:0 20px 42px rgba(222,64,18,.20)}
.about-card:hover .icon{color:#fff3cf}
.about-card:hover p{color:rgba(255,255,255,.82)}

/* 白色模块增加暖度和通透感 */
.stats,.brand-cell,.customer-cell,.value-card,.product-card,.quality-step{background:#fff}
.brand-cell:hover,.customer-cell:hover,.news-item:hover{background:#fff7f0}
.stat strong{color:#e7441b}
.news-date strong{color:#34363a}

/* 页脚仅保留必要深色，避免纯黑压沉 */
.site-footer{background:linear-gradient(135deg,#303238,#26282d);color:#fff}
.footer-brand p,.footer-col a,.footer-col p{color:rgba(255,255,255,.66)}
.footer-bottom{color:rgba(255,255,255,.48);border-top-color:rgba(255,255,255,.14)}

/* 内页 Banner 同步提亮 */
.inner-hero{background-color:#f2d4c0;background-blend-mode:soft-light}
.inner-hero::before{background:linear-gradient(90deg,rgba(53,24,12,.48),rgba(74,39,18,.10)),linear-gradient(180deg,rgba(0,0,0,.04),rgba(0,0,0,.16))}

/* 细节：线条更轻、阴影更柔 */
.site-header.scrolled,.site-header.inner{background:rgba(255,255,255,.98);box-shadow:0 8px 26px rgba(48,32,23,.055)}
.float-contact a,.float-contact button{box-shadow:0 7px 22px rgba(61,38,25,.10)}

/* =========================================================
   V4 内容更新：真实分销品牌、第五行业、PCB友情产品与完整底栏介绍
   ========================================================= */
.brand-cell{padding:20px 24px;background:#fff}
.brand-cell img{display:block;max-width:78%;max-height:58px;width:auto;height:auto;object-fit:contain;filter:grayscale(.12);opacity:.88;transition:transform .28s ease,filter .28s ease,opacity .28s ease}
.brand-cell:hover img{filter:none;opacity:1;transform:scale(1.045)}
.brand-cell:nth-child(4) img{max-height:68px}
.brand-cell:nth-child(9) img,.brand-cell:nth-child(11) img,.brand-cell:nth-child(12) img{max-width:84%;max-height:66px}

.solution-images{grid-template-columns:repeat(5,1fr)}

.partner-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.partner-product-card{position:relative;overflow:hidden;background:#fff;border:1px solid #eee7e1;box-shadow:0 13px 34px rgba(74,42,25,.065);transition:transform .28s ease,box-shadow .28s ease}
.partner-product-card img{display:block;width:100%;height:245px;object-fit:cover;transition:transform .55s ease,filter .35s ease;filter:saturate(.92) brightness(1.03)}
.partner-product-card>div{position:relative;padding:22px 24px 24px;background:#fff}
.partner-product-card span{position:absolute;right:22px;top:22px;color:#d7c3b6;font-size:12px;letter-spacing:.12em}
.partner-product-card h3{font-size:18px;font-weight:500;margin:0 0 8px;padding-right:42px}
.partner-product-card p{font-size:13px;color:#8a8d92;margin:0}
.partner-product-card:hover{transform:translateY(-6px);box-shadow:0 22px 48px rgba(74,42,25,.12)}
.partner-product-card:hover img{transform:scale(1.055);filter:saturate(1.04) brightness(1.05)}

.footer-top{grid-template-columns:2.25fr .72fr .72fr 1.05fr;gap:42px}
.footer-brand h3{font-size:18px;font-weight:500;margin:0 0 14px;color:#fff}
.footer-intro{max-width:620px;font-size:12.5px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-intro p{max-width:none!important;margin:0 0 10px!important;color:inherit!important}
.footer-intro strong{color:rgba(255,255,255,.9);font-weight:500}
.footer-intro ul{margin:2px 0 0;padding:0;list-style:none}
.footer-intro li{position:relative;padding-left:16px;margin:5px 0}
.footer-intro li::before{content:"•";position:absolute;left:0;color:var(--gold)}

@media(max-width:1024px){
  .solution-images{grid-template-columns:repeat(5,1fr)}
  .partner-product-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .footer-intro{max-width:900px}
}
@media(max-width:780px){
  .solution-images{grid-template-columns:repeat(2,1fr);height:760px}
  .partner-product-grid{grid-template-columns:1fr}
  .partner-product-card img{height:230px}
  .brand-cell{padding:14px 16px}
  .brand-cell img{max-width:86%;max-height:48px}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}


/* =========================================================
   V5 文案位置修正：完整公司介绍放入首页“关于盛世芯城”右栏，底栏恢复简洁
   ========================================================= */
.about-copy{max-width:760px}
.about-copy h3{margin-bottom:18px}
.about-copy p{margin:0 0 15px;line-height:1.95;color:#666b70}
.about-copy strong,.about-advantages>strong{color:#35383d;font-weight:600}
.about-advantages{color:#666b70;font-size:15px;line-height:1.9}
.about-advantages ul{margin:8px 0 0;padding:0;list-style:none}
.about-advantages li{position:relative;padding-left:18px;margin:6px 0}
.about-advantages li::before{content:"•";position:absolute;left:0;top:0;color:var(--orange);font-size:18px;line-height:1.55}
.footer-top{grid-template-columns:1.45fr .75fr .75fr 1.15fr;gap:48px}
.footer-brand h3,.footer-intro{display:none}
.footer-brand p{font-size:13px;line-height:1.9;color:rgba(255,255,255,.62);max-width:350px}
@media(max-width:1024px){.footer-top{grid-template-columns:1.2fr 1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:780px){.about-copy p,.about-advantages{font-size:14px}.footer-top{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}}

/* 首页首屏视频：仅替换原第一屏背景图 */
.hero .hero-video-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;pointer-events:none}.hero::before,.hero::after{z-index:1}.hero-inner{z-index:2}


/* V5.4 首页关于板块海报模式 */
.about-top{grid-template-columns:.82fr 1.18fr;align-items:stretch;gap:54px}
.about-copy{max-width:none}
.about-poster{position:relative;overflow:hidden;padding:34px 36px 36px;border-radius:26px;border:1px solid #f0dfd2;background:linear-gradient(135deg,rgba(255,255,255,.98),rgba(255,246,239,.98) 58%,rgba(255,238,219,.96));box-shadow:0 22px 56px rgba(87,45,22,.10)}
.about-poster::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 88% 16%,rgba(255,182,0,.18),transparent 20%),radial-gradient(circle at 12% 84%,rgba(235,67,23,.08),transparent 23%),linear-gradient(135deg,transparent 0 72%,rgba(255,182,0,.07) 72% 100%);pointer-events:none}
.about-poster::after{content:"SSXC";position:absolute;right:26px;top:14px;font-size:88px;font-weight:700;letter-spacing:.08em;color:rgba(235,67,23,.06);pointer-events:none}
.poster-kicker{position:relative;z-index:1;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;background:rgba(239,126,37,.10);border:1px solid rgba(239,126,37,.18);font-size:11px;letter-spacing:.22em;color:#b56c2f;margin-bottom:16px}
.about-poster h3{position:relative;z-index:1;font-size:40px;line-height:1.2;font-weight:600;margin:0 0 14px;color:#222933}
.poster-lead{position:relative;z-index:1;margin:0 0 20px!important;font-size:16px!important;line-height:1.95!important;color:#666b70!important;max-width:930px}
.poster-tags{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin:0 0 22px}
.poster-tags span{display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;background:#fff;border:1px solid #f0e2d9;box-shadow:0 8px 20px rgba(96,56,31,.05);font-size:13px;color:#6b7075}
.poster-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:20px}
.poster-block{padding:20px 22px;border-radius:18px;background:rgba(255,255,255,.88);border:1px solid #efe1d7;box-shadow:0 8px 22px rgba(78,46,26,.05)}
.poster-title{font-size:18px;font-weight:600;color:#232830;margin-bottom:10px}
.poster-block p{margin:0!important;font-size:14px!important;line-height:1.95!important;color:#6b7075!important}
.poster-advantages-label{position:relative;z-index:1;font-size:20px;font-weight:600;color:#232830;margin:2px 0 14px}
.poster-advantages-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.poster-adv-card{padding:20px 18px 18px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff8f3);border:1px solid #f1e1d6;box-shadow:0 8px 20px rgba(78,46,26,.05)}
.poster-adv-card b{display:block;font-size:26px;line-height:1;color:var(--orange);margin-bottom:10px}
.poster-adv-card h4{font-size:16px;font-weight:600;color:#252b33;margin:0 0 8px}
.poster-adv-card p{margin:0!important;font-size:13px!important;line-height:1.85!important;color:#73787e!important}
@media(max-width:1100px){.about-top{grid-template-columns:1fr;gap:28px}.about-heading{max-width:520px}.about-poster h3{font-size:34px}.poster-advantages-grid{grid-template-columns:1fr 1fr}}
@media(max-width:780px){.about-poster{padding:24px 18px 22px;border-radius:20px}.about-poster::after{font-size:48px;right:14px;top:18px}.poster-kicker{height:auto;min-height:30px;padding:8px 12px;line-height:1.5}.about-poster h3{font-size:28px}.poster-lead{font-size:14px!important}.poster-grid,.poster-advantages-grid{grid-template-columns:1fr}.poster-tags span{font-size:12px;height:32px;padding:0 12px}}


/* V5.5 关于板块补充视觉图 */
.about-heading{display:flex;flex-direction:column}
.about-visual{margin-top:34px;position:relative;border-radius:24px;overflow:hidden;min-height:500px;background:linear-gradient(180deg,#dff4ff,#f4fbff);box-shadow:0 20px 48px rgba(63,93,122,.14);border:1px solid #dcebf5}
.about-visual img{display:block;width:100%;height:100%;min-height:500px;object-fit:cover;object-position:center;filter:saturate(1.03) brightness(1.02)}
.about-visual::after{content:"";position:absolute;inset:auto 0 0 0;height:34%;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(7,26,48,.08))}
@media(max-width:1100px){.about-visual{min-height:420px}.about-visual img{min-height:420px}}
@media(max-width:780px){.about-visual{min-height:320px;margin-top:22px;border-radius:18px}.about-visual img{min-height:320px}}

/* V5.6 联系方式 */
.footer-col p a{color:inherit;text-decoration:none;transition:.2s}.footer-col p a:hover{color:#ffb600}.contact-row a{color:inherit;text-decoration:none}.contact-row a:hover{color:#eb4317}