*{box-sizing:border-box}
:root{--ink:#15212b;--muted:#5f6f7a;--line:#d9e0e4;--bg:#f5f7f8;--card:#fff;--dark:#102131;--accent:#b7791f;--max:1180px}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,figure{margin:0}
.site-icon{width:1em;height:1em;display:inline-block;vertical-align:-.16em;stroke-width:2}
.site-header{position:sticky;top:0;z-index:20;height:76px;padding:0 max(18px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;gap:28px;background:rgba(16,33,49,.96);color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:62px;height:42px;object-fit:contain}.brand strong{font-size:16px;white-space:nowrap}
.desktop-nav{display:flex;gap:26px;font-size:14px}.desktop-nav a{color:rgba(255,255,255,.72)}.desktop-nav a.active,.desktop-nav a:hover{color:#fff}
.menu-button{display:none;width:44px;height:44px;border:0;background:transparent;color:#fff}.menu-button span{display:block;width:23px;height:2px;margin:5px auto;background:currentColor}
.mobile-menu{display:none;background:var(--dark);color:#fff;padding:10px 18px}.mobile-menu a{display:block;padding:12px 0;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.78)}.mobile-menu a.active{color:#fff}
.hero{position:relative;min-height:680px;background:#07131d;overflow:hidden}
.hero-slide{position:absolute;inset:0;padding:82px max(18px,calc((100vw - var(--max))/2));display:flex;align-items:center;opacity:0;pointer-events:none;transition:opacity .7s ease}
.hero-slide.active{opacity:1;pointer-events:auto}
.hero-slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.hero-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,16,27,.72),rgba(5,16,27,.18) 52%,rgba(5,16,27,.08));z-index:1}
.hero-copy{position:relative;z-index:2;width:min(690px,100%);color:#fff}
.hero-copy span,.page-title span,.section-head span,.block-title span,.contact-band span{display:block;margin-bottom:12px;color:var(--accent);font-size:13px;font-weight:700}
.hero h1{max-width:680px;font-size:58px;line-height:1.08}.hero p{max-width:620px;margin-top:22px;color:rgba(255,255,255,.76);font-size:18px}
.hero-actions{display:flex;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border:1px solid var(--dark);font-weight:700}.button.primary{background:var(--dark);color:#fff}
.hero .button{border-color:rgba(255,255,255,.78);color:#fff}.hero .button.primary{border-color:#fff;background:#fff;color:#102131}
.hero-controls{position:absolute;right:max(18px,calc((100vw - var(--max))/2));bottom:34px;z-index:3;display:flex;gap:10px}.hero-controls button{width:42px;height:4px;border:0;background:rgba(255,255,255,.35);cursor:pointer}.hero-controls button.active{background:#fff}
.section,.page-title,.contact-band{padding:78px max(18px,calc((100vw - var(--max))/2))}
.page-title{position:relative;min-height:340px;padding-top:94px;padding-bottom:92px;display:flex;flex-direction:column;justify-content:center;overflow:hidden;background:#07131d center/cover no-repeat;color:#fff;border-bottom:0}
.page-title::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,16,27,.86),rgba(5,16,27,.62) 45%,rgba(5,16,27,.22));z-index:0}
.page-title::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,16,27,.2),rgba(255,255,255,.08));z-index:0}
.page-title>*{position:relative;z-index:1}
.page-title-about{background-image:url("images/page-banner-about.jpg");background-position:center}
.page-title-products{background-image:url("images/page-banner-products.jpg");background-position:center}
.page-title-manufacturing{background-image:url("images/page-banner-manufacturing.jpg");background-position:center}
.page-title-certifications{background-image:url("images/page-banner-certifications.jpg");background-position:center}
.page-title-news{background-image:url("images/page-banner-news.jpg");background-position:center}
.page-title-contact{background-image:url("images/page-banner-contact.jpg");background-position:center}
.page-title h1{max-width:850px;font-size:48px;line-height:1.15}.page-title p{max-width:760px;margin-top:18px;color:rgba(255,255,255,.78);font-size:18px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-head.compact{display:block}.section-head h2{font-size:36px;line-height:1.18}.section-head a{font-weight:700;color:var(--accent)}
.muted{background:#ecf0f2}.two-col{display:grid;grid-template-columns:minmax(0,.92fr) minmax(360px,1.08fr);gap:36px;align-items:center}
.about-profile{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.74fr);gap:40px;align-items:start;background:#fff}.about-profile .plain-photo img{height:520px;object-fit:cover}
.profile-text{max-width:760px;color:var(--muted);font-size:18px}.profile-text p+p{margin-top:16px}
.home-intro{background:#fff}.home-profile{font-size:17px}.home-more{margin-top:26px}.home-intro .plain-photo img{object-fit:cover}
.overview-section{background:#ecf0f2}.overview-layout{display:grid;grid-template-columns:minmax(330px,.78fr) minmax(0,1.22fr);gap:18px;align-items:stretch}.overview-visual{position:relative;min-height:450px;overflow:hidden;background:#07131d;color:#fff;border:1px solid var(--line)}.overview-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.overview-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,16,27,.86),rgba(5,16,27,.22) 56%,rgba(5,16,27,.08));z-index:1}.overview-visual figcaption{position:absolute;left:24px;right:24px;bottom:106px;z-index:2}.overview-visual figcaption strong{display:block;font-size:46px;line-height:1}.overview-visual figcaption span{display:block;margin-top:12px;color:rgba(255,255,255,.78)}.overview-badges{position:absolute;left:18px;right:18px;bottom:18px;z-index:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.overview-badges span{min-height:62px;padding:10px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);font-size:13px;color:rgba(255,255,255,.78)}.overview-badges strong{display:block;color:#fff;font-size:24px;line-height:1.05}.overview-layout .fact-grid{height:100%}.overview-layout .fact-grid article{min-height:150px}
.fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line);background:#fff}.fact-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.fact-grid article{min-height:150px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between}.fact-grid strong{font-size:32px;line-height:1.15}.fact-grid span{color:var(--muted)}
.scope-list,.example-list{display:flex;flex-wrap:wrap;gap:10px}.scope-list span,.example-list span{padding:10px 14px;background:#fff;border:1px solid var(--line);font-weight:700}.example-list span{min-width:150px;text-align:center}
.plain-photo{background:#fff;border:1px solid var(--line)}.plain-photo img{width:100%;height:360px;object-fit:contain;background:#fff}.plain-photo.large img{height:520px}.plain-photo figcaption{padding:14px 16px;color:var(--muted);border-top:1px solid var(--line)}.scope-section .plain-photo{max-width:560px;justify-self:end}.scope-section .plain-photo img{height:340px;object-fit:cover}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.compact-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.content-block+.content-block{margin-top:54px}.block-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;border-bottom:1px solid var(--line)}.block-title span{margin:0;padding-bottom:12px}.block-title strong{color:var(--muted);font-size:14px}
.product-card,.photo-card,.certificate-card{background:#fff;border:1px solid var(--line)}.product-card a,.photo-card a{display:block;height:300px;padding:18px;background:#fff}.compact-grid .product-card a{height:240px}.product-card img,.photo-card img{width:100%;height:100%;object-fit:contain}.product-card div{padding:16px;border-top:1px solid var(--line)}.product-card div span{color:var(--muted);font-size:13px}.product-card h3,.photo-card h3,.certificate-card h3{font-size:18px;line-height:1.35}.product-card>h3{min-height:58px;padding:13px 16px;display:flex;align-items:center;justify-content:center;text-align:center;border-top:1px solid var(--line)}.photo-card h3,.certificate-card h3{padding:16px;border-top:1px solid var(--line)}
.photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.photo-card a{height:360px}
.certificate-marquee{overflow:hidden;position:relative}.certificate-marquee::before,.certificate-marquee::after{content:"";position:absolute;top:0;bottom:0;width:58px;z-index:2;pointer-events:none}.certificate-marquee::before{left:0;background:linear-gradient(90deg,#f5f7f8,rgba(245,247,248,0))}.certificate-marquee::after{right:0;background:linear-gradient(270deg,#f5f7f8,rgba(245,247,248,0))}.certificate-strip{display:flex;gap:14px;width:max-content;animation:cert-scroll 58s linear infinite}.certificate-strip:hover{animation-play-state:paused}.certificate-repeat{display:contents}.certificate-strip .certificate-card{flex:0 0 190px}.certificate-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.certificate-card a{display:block;height:480px;padding:18px;background:#fff}.certificate-strip .certificate-card a{height:210px;padding:8px;display:flex;align-items:center;justify-content:center}.certificate-card img{width:100%;height:100%;object-fit:contain;background:#fff}.certificate-strip .certificate-card h3{min-height:74px;padding:13px 14px;display:flex;align-items:center;justify-content:center;text-align:center}.certificate-strip .certificate-card img{max-width:100%;max-height:100%}@keyframes cert-scroll{to{transform:translateX(-50%)}}
.data-table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line)}.data-table{width:100%;min-width:760px;border-collapse:collapse;background:#fff}.data-table th,.data-table td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.data-table th{background:#102131;color:#fff;font-weight:700}.data-table td:first-child{font-weight:700;color:var(--ink)}.data-table tr:last-child td{border-bottom:0}.data-table td{color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.news-layout{display:grid;grid-template-columns:minmax(360px,.88fr) minmax(0,1.12fr);gap:28px;align-items:start}.news-layout .plain-photo img{height:520px;object-fit:cover}.news-list{display:grid;gap:14px}.news-card{background:#fff;border:1px solid var(--line);padding:24px;min-height:230px;display:flex;flex-direction:column}.news-card span{display:flex;align-items:center;gap:8px;color:var(--accent);font-size:13px;font-weight:700}.news-card span .site-icon{font-size:18px}.news-card h3{margin-top:16px;font-size:22px;line-height:1.35}.news-card p{margin-top:12px;color:var(--muted)}.news-card a{display:inline-flex;align-items:center;gap:8px;margin-top:auto;padding-top:22px;color:var(--dark);font-weight:700}.news-card a .site-icon{font-size:18px}
.text-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;color:var(--muted);font-size:18px}.contact-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);gap:34px;align-items:start}
.contact-card{background:#fff;border:1px solid var(--line)}.contact-card article{display:grid;grid-template-columns:130px 1fr;gap:18px;padding:22px;border-bottom:1px solid var(--line)}.contact-card article:last-child{border-bottom:0}.contact-card span{display:flex;align-items:center;gap:8px;color:var(--muted)}.contact-card span .site-icon{color:var(--accent);font-size:18px}.contact-card strong{font-size:20px}
.contact-band{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--dark);color:#fff}.contact-band h2{display:flex;align-items:center;gap:14px;font-size:42px}.contact-band p{display:flex;align-items:center;gap:10px;margin-top:8px;color:rgba(255,255,255,.68)}.contact-icon{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:38px;height:38px;border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);color:#fff}.contact-icon .site-icon{font-size:20px}.contact-band .button{border-color:#fff;background:#fff;color:var(--dark)}
.site-footer{padding:34px max(18px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;gap:30px;background:#07131d;color:rgba(255,255,255,.72);font-size:13px}.footer-brand{display:flex;align-items:center;gap:14px}.footer-brand img{width:64px;height:44px;object-fit:contain}.site-footer strong,.site-footer span,.site-footer a{display:block}.site-footer strong{color:#fff;font-size:16px}.site-footer a{margin-top:8px;color:rgba(255,255,255,.72)}
@media(max-width:900px){.desktop-nav{display:none}.menu-button{display:block}.mobile-menu.open{display:block}.site-header{height:68px}.brand strong{font-size:14px;white-space:normal}.two-col,.about-profile,.contact-layout,.overview-layout,.news-layout{grid-template-columns:1fr}.hero{min-height:590px}.hero-slide{padding:54px 18px 76px}.hero-slide img{object-position:62% center}.hero-slide::after{background:linear-gradient(90deg,rgba(5,16,27,.82),rgba(5,16,27,.35) 68%,rgba(5,16,27,.2))}.hero h1{font-size:42px}.hero-controls{right:18px;bottom:28px}.overview-visual{min-height:390px}.scope-section .plain-photo{max-width:none;justify-self:stretch}.fact-grid,.fact-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid,.compact-grid,.certificate-grid,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.certificate-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.photo-grid{grid-template-columns:1fr}.site-footer{display:block}.site-footer>div+div{margin-top:18px}}
@media(max-width:560px){.brand img{width:52px}.section,.page-title,.contact-band{padding:58px 16px}.page-title h1{font-size:34px}.hero{min-height:560px}.hero-slide{padding:42px 16px 72px}.hero-slide img{object-position:34% center}.hero-slide::after{background:linear-gradient(90deg,rgba(5,16,27,.9),rgba(5,16,27,.62) 74%,rgba(5,16,27,.38))}.hero h1{font-size:35px}.hero p{font-size:16px}.hero-actions{flex-wrap:wrap}.hero-actions .button{min-width:136px}.section-head{display:block}.section-head h2{font-size:28px}.section-head a{display:inline-block;margin-top:10px}.overview-visual{min-height:430px}.overview-badges{grid-template-columns:1fr}.overview-visual figcaption{bottom:244px}.overview-visual figcaption strong{font-size:38px}.fact-grid,.fact-grid.four,.card-grid,.compact-grid,.certificate-grid,.news-grid{grid-template-columns:1fr}.product-card a,.compact-grid .product-card a,.photo-card a{height:260px}.certificate-card a{height:430px}.certificate-strip .certificate-card a{height:210px}.news-layout .plain-photo img{height:300px}.text-columns{grid-template-columns:1fr}.contact-card article{grid-template-columns:1fr;gap:4px}.contact-band{display:block}.contact-band .button{margin-top:24px;width:100%}.contact-band h2{font-size:32px}}