:root{--red:#d51017;--red2:#a70d12;--blue:#075aa7;--dark:#121417;--dark2:#20242a;--text:#25282d;--muted:#69707a;--line:#e7e8ea;--light:#f6f7f8;--white:#fff;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.topbar{background:#111;color:#bfc4ca;font-size:13px}.topbar .container{display:flex;justify-content:space-between;gap:20px;padding:8px 0}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:74px}.logo img{width:170px;height:64px;object-fit:contain;object-position:left center}.nav{display:flex;align-items:center;gap:30px;font-size:15px;font-weight:600}.nav a{position:relative;padding:25px 0}.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:17px;height:2px;background:var(--red);transition:.25s}.nav a:hover:after,.nav a.active:after{right:0}.nav-cta{background:var(--red);color:#fff!important;padding:10px 18px!important}.nav-cta:after{display:none!important}.menu-btn{display:none;border:0;background:none;font-size:26px}.hero{position:relative;height:510px;overflow:hidden;background:#181818}.hero-slide{position:absolute;inset:0;background:center center/cover no-repeat;opacity:0;transition:opacity .7s}.hero-slide.active{opacity:1}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.42),rgba(0,0,0,.12) 48%,rgba(0,0,0,.03))}.hero-copy{position:relative;z-index:2;color:#fff;padding-top:110px;max-width:620px}.eyebrow{display:inline-block;background:var(--red);padding:6px 14px;font-size:14px;letter-spacing:1px;margin-bottom:14px}.hero h1{font-size:44px;line-height:1.2;margin:0 0 16px;text-shadow:0 2px 7px #000}.hero p{font-size:18px;color:#eceff2;max-width:560px}.btns{display:flex;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 24px;border-radius:2px;font-weight:700;border:1px solid transparent;transition:.2s}.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red2)}.btn-light{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}.btn-light:hover{background:#fff;color:#111}.section{padding:76px 0}.section-sm{padding:52px 0}.section-head{text-align:center;margin-bottom:36px}.section-head .kicker{color:var(--red);font-size:13px;font-weight:700;letter-spacing:2px}.section-head h2{font-size:32px;margin:5px 0 8px}.section-head p{margin:0 auto;color:var(--muted);max-width:700px}.product-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:22px}.product-card{grid-column:span 2;border:1px solid var(--line);background:#fff;transition:.25s;overflow:hidden}.product-card.wide-card{grid-column:span 3}.product-card:hover{transform:translateY(-5px);box-shadow:0 14px 32px rgba(0,0,0,.09);border-color:#ddd}.product-img{height:230px;background:#f7f8fa;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:14px}.product-img.wide-img{height:260px;padding:10px}.product-img img{width:auto;height:auto;object-fit:contain;object-position:center;max-width:100%;max-height:100%}.product-card .body{padding:18px}.product-card h3{font-size:18px;margin:0 0 7px}.product-card p{font-size:14px;color:var(--muted);margin:0 0 12px}.more{font-size:14px;color:var(--red);font-weight:700}.dark-section{background:#15181d;color:#fff}.advantages{display:grid;grid-template-columns:1fr 1.1fr;gap:54px;align-items:center}.advantages h2{font-size:34px;line-height:1.35;margin:0 0 18px}.advantages p{color:#c8ccd1}.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.stat{padding:24px;background:#22262c;border-left:3px solid var(--red)}.stat b{display:block;font-size:20px;margin-bottom:5px}.stat span{color:#afb5bc;font-size:14px}.apps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.app{background:var(--light);padding:24px;border-top:2px solid transparent;transition:.2s}.app:hover{border-color:var(--red);background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}.app h3{font-size:17px;margin:0 0 6px}.app p{color:var(--muted);font-size:14px;margin:0}.about-home{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.about-visual{position:relative}.about-visual img{width:100%;height:360px;object-fit:contain;background:#fff;padding:20px}.about-note{position:absolute;left:-20px;bottom:-20px;background:var(--red);color:#fff;padding:18px 24px;font-weight:700}.about-home h2{font-size:32px;margin:0 0 15px}.about-home p{color:#5e646c}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{border:1px solid var(--line);padding:22px}.news-card time{font-size:12px;color:#9298a1}.news-card h3{font-size:17px;line-height:1.5}.news-card p{font-size:14px;color:var(--muted)}.cta{background:linear-gradient(120deg,#b30e13,#e4171f);color:#fff;padding:42px 0}.cta .container{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin:0;font-size:28px}.cta p{margin:4px 0 0;color:#ffe6e7}.cta .btn{background:#fff;color:#b30e13}.footer{background:#0f1114;color:#b7bcc3;padding:50px 0 18px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}.footer h3{color:#fff;font-size:16px;margin-top:0}.footer a{display:block;margin:6px 0;font-size:14px}.footer p{font-size:14px}.copyright{border-top:1px solid #2c3035;margin-top:30px;padding-top:18px;font-size:13px}.page-hero{background:linear-gradient(90deg,#17191d,#363a40);color:#fff;padding:68px 0}.page-hero h1{font-size:36px;margin:0 0 8px}.breadcrumb{color:#bec3c9;font-size:14px}.content-grid{display:grid;grid-template-columns:260px 1fr;gap:36px}.side-nav{border:1px solid var(--line);align-self:start}.side-nav h3{margin:0;background:#181b1f;color:#fff;padding:15px 18px}.side-nav a{display:block;padding:12px 18px;border-bottom:1px solid var(--line);font-size:14px}.side-nav a:hover,.side-nav a.active{color:var(--red);background:#fafafa}.pro-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.pro-item{border:1px solid var(--line);padding:18px}.pro-item .thumb{height:230px;background:#f7f7f7;display:flex;align-items:center;justify-content:center;overflow:hidden}.pro-item .thumb img{width:100%;height:100%;object-fit:contain}.pro-item h2{font-size:21px}.tag{display:inline-block;color:#a20d12;background:#fff1f1;padding:3px 9px;font-size:12px;margin-right:6px}.article h2{font-size:27px;margin-top:0}.article h3{font-size:20px;margin-top:30px}.article p,.article li{color:#555d66}.table-wrap{overflow:auto}.spec-table{width:100%;border-collapse:collapse;font-size:14px}.spec-table th,.spec-table td{border:1px solid #ddd;padding:10px 12px;text-align:left}.spec-table th{background:#f4f5f6}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:22px}.contact-card{border:1px solid var(--line);padding:24px}.contact-card strong{display:block;font-size:16px;margin-bottom:8px}.seo-note{background:#fff8f8;border-left:3px solid var(--red);padding:14px 18px;color:#666;font-size:14px}.catalog-ref{margin-top:22px;border:1px solid var(--line);padding:14px;background:#fafafa}.catalog-ref img{width:100%;height:auto}.badge{display:inline-block;background:#edf3f9;color:#075aa7;padding:4px 9px;font-size:12px;margin:2px 4px 2px 0}.float-contact{position:fixed;right:18px;bottom:24px;z-index:20;background:var(--red);color:white;padding:11px 15px;box-shadow:0 8px 20px rgba(0,0,0,.2);font-size:14px}.muted{color:var(--muted)}@media(max-width:980px){.nav{gap:16px}.product-grid{grid-template-columns:repeat(2,1fr)}.product-card,.product-card.wide-card{grid-column:span 1}.apps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.advantages,.about-home,.content-grid{grid-template-columns:1fr}.side-nav{display:none}.hero{height:450px}.hero h1{font-size:36px}.pro-list{grid-template-columns:1fr}}@media(max-width:720px){.topbar{display:none}.menu-btn{display:block}.nav{position:absolute;display:none;left:0;right:0;top:74px;background:#fff;padding:10px 20px 20px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid #ddd}.nav.open{display:flex}.nav a{padding:12px 0}.nav a:after{display:none}.nav-cta{text-align:center;margin-top:8px}.hero{height:390px;background:#222}.hero-copy{padding-top:70px}.hero h1{font-size:30px}.hero p{font-size:16px}.section{padding:54px 0}.product-grid{grid-template-columns:1fr 1fr}.product-card,.product-card.wide-card{grid-column:span 1}.product-img{height:190px;padding:10px}.apps,.news-grid,.contact-box{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.cta .container{flex-direction:column;align-items:flex-start}.about-note{left:10px}.pro-list{grid-template-columns:1fr}.page-hero{padding:48px 0}.page-hero h1{font-size:30px}}@media(max-width:480px){.container{width:min(var(--max),calc(100% - 26px))}.product-grid{grid-template-columns:1fr}.product-card,.product-card.wide-card{grid-column:span 1}.product-img{height:230px;padding:12px}.product-img.wide-img{height:230px;padding:12px}.btns{flex-wrap:wrap}.logo img{width:145px}.hero h1{font-size:27px}.section-head h2{font-size:27px}}

/* V3.0 enhanced product sections */
.intro-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center;margin-bottom:26px}.intro-panel .media{border:1px solid var(--line);background:#fafafa;padding:16px}.intro-panel .media img{width:100%;height:auto;object-fit:contain}.intro-panel .summary{background:#fff;border:1px solid var(--line);padding:22px}.intro-panel .summary h2{margin:0 0 12px;font-size:28px}.intro-panel .summary p{margin:0 0 14px;color:#5d6470}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:14px 0 4px}.feature-item{border:1px solid var(--line);background:#fafafa;padding:14px 16px}.feature-item b{display:block;color:#111;margin-bottom:4px}.series-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:10px}.series-card{border:1px solid var(--line);padding:18px;background:#fff}.series-card h4{margin:0 0 8px;font-size:18px}.series-card p{margin:0;color:#616874;font-size:14px}.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0}.data-box{border:1px solid var(--line);background:#fafafa;padding:16px}.data-box b{display:block;font-size:18px;color:var(--red);margin-bottom:5px}.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:10px}.catalog-item{border:1px solid var(--line);background:#fafafa;padding:12px}.catalog-item img{width:100%;height:auto}.catalog-item p{font-size:13px;color:#646b76;margin:10px 0 0}.note-box{border-left:3px solid var(--red);background:#fff8f8;padding:14px 16px;margin:18px 0;color:#5f6166}.anchor-links{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 22px}.anchor-links a{font-size:14px;background:#f1f5f8;border:1px solid #d9e2ea;color:#075aa7;padding:6px 12px}.list-check{padding-left:18px}.list-check li{margin:6px 0}.table-caption{font-size:13px;color:#6a727b;margin-top:8px}.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related-links a{display:block;border:1px solid var(--line);padding:18px;background:#fff}.mini-kicker{display:inline-block;font-size:12px;letter-spacing:1px;color:var(--red);font-weight:700;margin-bottom:8px}.category-panels{display:grid;grid-template-columns:1fr 1fr;gap:22px}.category-panel{border:1px solid var(--line);padding:24px;background:#fff}.category-panel h3{margin-top:0}.sub-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:14px}.sub-list a,.sub-list span{display:block;padding:10px 12px;border:1px solid var(--line);background:#fafafa;font-size:14px}
@media(max-width:980px){.intro-panel,.category-panels,.series-grid,.catalog-grid,.related-links,.data-grid{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}}