:root{
  --brand-navy:#071327;--brand-blue:#2563EB;--brand-light-blue:#3B82F6;
  --text-primary:#111827;--text-secondary:#4B5563;--text-inverse:#FFFFFF;
  --bg-surface:#FFFFFF;--bg-muted:#F3F4F7;--bg-dark:#071327;
  --gap-lg:48px;--gap-md:24px;--gap-sm:16px;--radius-card:12px;--radius-button:8px;
  --section-padding-y:96px;--maxw:1200px;--nav-h:72px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 24px);}
body{font-family:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--text-primary);background:var(--bg-surface);line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-padding-y) 0;}
.section--muted{background:var(--bg-muted);}
.eyebrow{font-size:14px;font-weight:600;color:var(--brand-blue);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;}
.section-title{font-size:40px;font-weight:700;line-height:1.2;color:var(--text-primary);}
.section-lead{font-size:18px;color:var(--text-secondary);max-width:720px;margin-top:16px;}
.section-head{max-width:720px;margin-bottom:var(--gap-lg);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-button);font-size:16px;font-weight:600;cursor:pointer;border:none;transition:all .2s ease;white-space:nowrap;}
.btn--primary{background:var(--brand-blue);color:#fff;}
.btn--primary:hover{background:#1d4ed8;transform:translateY(-1px);}
.btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);}
.btn--ghost:hover{background:rgba(255,255,255,.12);}
.btn--outline{background:transparent;color:var(--brand-blue);border:1px solid var(--brand-blue);}
.btn--outline:hover{background:var(--brand-blue);color:#fff;}
.site-header{position:sticky;top:0;z-index:100;height:var(--nav-h);background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid #ECEEF2;}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%;}
.logo{display:flex;align-items:center;height:78px;flex:none;}
.logo img{height:100%;width:auto;display:block;}
.nav{display:flex;align-items:center;gap:18px;flex:1;justify-content:center;min-width:0;}
.nav a{font-size:14px;font-weight:500;color:var(--text-secondary);transition:color .2s;}
.nav a:hover,.nav a.active{color:var(--brand-blue);}
.lang-switch-group{display:flex;align-items:center;gap:6px;margin-left:10px;flex:none;}
.lang-switch{font-size:12px;font-weight:600;color:var(--brand-blue);border:1px solid #CBD5E1;border-radius:999px;padding:5px 11px;line-height:1;letter-spacing:.02em;transition:all .2s ease;}
.lang-switch:hover{background:var(--brand-blue);border-color:var(--brand-blue);color:#fff;}
.lang-switch.active{background:var(--brand-navy);border-color:var(--brand-navy);color:#fff;}
.header-cta{padding:10px 20px;font-size:14px;margin-left:8px;flex:none;}
.nav-item{position:relative;}
.nav>a,.nav-item>a{font-size:14px;font-weight:500;color:var(--text-secondary);transition:color .2s;padding:24px 0;display:block;white-space:nowrap;}
.nav>a:hover,.nav-item>a:hover,.nav>a.active,.nav-item>a.active{color:var(--brand-blue);}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border:1px solid #ECEEF2;border-radius:12px;box-shadow:0 20px 50px rgba(7,19,39,.12);padding:8px 0;min-width:180px;opacity:0;visibility:hidden;transition:all .2s ease;z-index:99;}
.nav-item:hover .dropdown,.dropdown:hover{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.dropdown a{display:block;padding:10px 20px;font-size:14px;color:var(--text-secondary);white-space:nowrap;}
.dropdown a:hover{background:#F8FAFC;color:var(--brand-blue);}
.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border:1px solid #ECEEF2;border-radius:16px;box-shadow:0 24px 60px rgba(7,19,39,.14);padding:24px;width:520px;max-width:92vw;opacity:0;visibility:hidden;transition:all .2s ease;z-index:99;}
.nav-item:hover .mega-menu,.mega-menu:hover{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.mega-title{font-size:13px;font-weight:600;color:#9CA3AF;text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;}
.mega-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px;}
.mega-col a{display:block;padding:8px 0;font-size:14px;color:var(--text-primary);border-bottom:1px solid #F3F4F7;}
.mega-col a:hover{color:var(--brand-blue);}
.mega-col a span{font-size:11px;color:#6B7280;display:block;}
.mega-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:16px;border-top:1px solid #F3F4F7;}
.mega-foot a{font-size:14px;font-weight:600;color:var(--brand-blue);}
.float-btn{position:fixed;right:24px;bottom:24px;z-index:90;width:64px;height:64px;border-radius:50%;background:var(--brand-blue);color:#fff;box-shadow:0 12px 30px rgba(37,99,235,.35);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;}
.float-btn:hover{transform:translateY(-4px);background:#1d4ed8;}
.float-btn svg{width:28px;height:28px;}
.float-modal{position:fixed;inset:0;background:rgba(7,19,39,.5);z-index:100;display:none;align-items:center;justify-content:center;padding:24px;}
.float-modal.open{display:flex;}
.float-box{background:#fff;border-radius:var(--radius-card);padding:32px;width:100%;max-width:480px;position:relative;box-shadow:0 24px 60px rgba(7,19,39,.2);}
.float-box h3{font-size:22px;font-weight:600;margin-bottom:20px;padding-right:32px;}
.float-close{position:absolute;top:20px;right:20px;width:32px;height:32px;border-radius:50%;border:none;background:#F3F4F7;color:var(--text-secondary);font-size:22px;cursor:pointer;}
.float-close:hover{background:#E5E7EB;}
.float-form input,.float-form textarea{width:100%;background:#F9FAFB;border:1px solid #E5E7EB;border-radius:8px;padding:12px 16px;font-size:14px;margin-bottom:12px;outline:none;font-family:inherit;}
.float-form input:focus,.float-form textarea:focus{border-color:var(--brand-blue);background:#fff;}
.float-form textarea{min-height:100px;resize:vertical;}
.float-form button{width:100%;}
.hero{position:relative;overflow:hidden;color:#fff;}
.hero::before{content:"";position:absolute;inset:0;background:url('images/logistics-port.jpg') center/cover no-repeat;z-index:0;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(7,19,39,.72) 0%,rgba(7,19,39,.40) 100%);z-index:1;}
.hero .container{position:relative;z-index:2;display:flex;align-items:center;gap:64px;padding-top:96px;padding-bottom:96px;min-height:720px;}
.hero-content{flex:1 1 640px;max-width:640px;}
.hero-badge{display:inline-block;font-size:14px;font-weight:500;color:var(--brand-light-blue);border:1px solid rgba(59,130,246,.4);border-radius:999px;padding:6px 16px;margin-bottom:28px;}
.hero-title{font-size:56px;font-weight:700;line-height:1.15;margin-bottom:24px;}
.hero-sub{font-size:20px;color:#D1D5DB;margin-bottom:32px;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:48px;margin-top:56px;flex-wrap:wrap;}
.hero-stat .num{font-size:32px;font-weight:700;color:#fff;}
.hero-stat .lbl{font-size:14px;color:#9CA3AF;}
.hero-visual{display:none;}
.about-top{display:flex;align-items:center;gap:64px;}
.about-text{flex:1 1 640px;max-width:640px;}
.about-visual{flex:0 0 520px;height:360px;border-radius:var(--radius-card);overflow:hidden;box-shadow:0 20px 50px rgba(7,19,39,.1);}
.about-visual img{width:100%;height:100%;object-fit:cover;display:block;}
.about-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap-md);margin-top:var(--gap-lg);}
.feature-card{background:var(--bg-muted);border-radius:var(--radius-card);padding:32px;display:flex;flex-direction:column;gap:16px;}
.feature-card .ic{width:48px;height:48px;border-radius:12px;background:#E8F0FE;color:var(--brand-blue);display:flex;align-items:center;justify-content:center;}
.feature-card h3{font-size:20px;font-weight:600;}
.feature-card p{font-size:14px;color:var(--text-secondary);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap-md);}
.why-card{background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:32px;display:flex;flex-direction:column;gap:16px;}
.why-card .badge{width:36px;height:36px;border-radius:50%;background:var(--brand-blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;}
.why-card h3{font-size:20px;font-weight:600;}
.why-card p{font-size:14px;color:var(--text-secondary);}
.why-img{height:170px;margin:-32px -32px 16px -32px;border-radius:var(--radius-card) var(--radius-card) 0 0;overflow:hidden;background:#F3F4F7;}
.why-img img{width:100%;height:100%;object-fit:cover;display:block;}
.why-img--contain{height:190px;}
.why-img--contain img{object-fit:contain;background:#fff;}
.log-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap-md);margin-bottom:var(--gap-lg);}
.log-stat .num{font-size:32px;font-weight:700;color:var(--brand-navy);}
.log-stat .lbl{font-size:14px;color:var(--text-secondary);}
.log-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap-md);}
.log-card{background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:28px;}
.log-card h3{font-size:20px;font-weight:600;margin-bottom:12px;}
.log-card p{font-size:14px;color:var(--text-secondary);}
.log-img{height:180px;margin:-28px -28px 20px -28px;border-radius:var(--radius-card) var(--radius-card) 0 0;overflow:hidden;}
.log-img img{width:100%;height:100%;object-fit:cover;display:block;}
.why-log{position:relative;margin-top:var(--gap-lg);border-radius:var(--radius-card);padding:36px;overflow:hidden;color:#fff;background:url('images/why-log-bg.jpg') center/cover no-repeat;}
.why-log::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,19,39,.86) 0%,rgba(7,19,39,.74) 45%,rgba(7,19,39,.38) 100%);z-index:0;}
.why-log>*{position:relative;z-index:1;}
.why-log h3{font-size:22px;font-weight:600;margin-bottom:8px;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.45);}
.why-log>p{font-size:14px;color:rgba(255,255,255,.9);max-width:760px;text-shadow:0 1px 6px rgba(0,0,0,.45);}
.why-log .log-stats{margin:28px 0 0;}
.why-log .log-stat .num{color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.45);}
.why-log .log-stat .lbl{color:rgba(255,255,255,.85);text-shadow:0 1px 6px rgba(0,0,0,.45);}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap-md);}
.app-grid--page .app-card{min-height:300px;}
.app-card{background:var(--bg-muted);border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;gap:8px;}
.app-card .ic{width:44px;height:44px;border-radius:10px;background:#E8F0FE;color:var(--brand-blue);display:flex;align-items:center;justify-content:center;margin-bottom:4px;}
.app-card h3{font-size:20px;font-weight:600;}
.app-card p{font-size:14px;color:var(--text-secondary);}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap-md);}
.prod-card{display:block;background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:20px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .2s,transform .2s;color:inherit;}
.prod-card:hover{box-shadow:0 12px 30px rgba(7,19,39,.08);transform:translateY(-2px);border-color:var(--brand-blue);}
.prod-card h3{font-size:18px;font-weight:600;}
.prod-card .prod-en{font-size:12px;color:#6B7280;margin-top:2px;}
.prod-card p{font-size:13px;color:var(--text-secondary);}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap-md);margin-bottom:var(--gap-lg);}
.cat-card{display:flex;flex-direction:column;gap:6px;background:var(--bg-muted);border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:24px;transition:all .2s;color:inherit;}
.cat-card:hover{background:#fff;border-color:var(--brand-blue);transform:translateY(-2px);}
.cat-card .cat-name{font-size:18px;font-weight:600;color:var(--text-primary);}
.cat-card .cat-count{font-size:13px;color:var(--brand-blue);font-weight:600;}
.cat-card .cat-desc{font-size:13px;color:var(--text-secondary);}
.products-cta{display:flex;align-items:center;gap:16px;margin-top:var(--gap-lg);flex-wrap:wrap;}
.products-cta p{font-size:16px;color:var(--text-secondary);}
.contact-cta{background:linear-gradient(160deg,#071327 0%,#0E1F38 100%);color:#fff;}
.contact-cta .container{display:flex;align-items:flex-start;gap:48px;}
.cta-text{flex:1 1 560px;max-width:560px;padding-top:12px;}
.cta-text .eyebrow{color:var(--brand-light-blue);}
.cta-text h2{font-size:48px;font-weight:700;line-height:1.15;margin-bottom:20px;}
.cta-text p{font-size:18px;color:#D1D5DB;margin-bottom:28px;}
.contact-cta-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:28px;}
.contact-side{flex:0 0 480px;display:flex;flex-direction:column;gap:24px;}
.contact-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);padding:32px;}
.contact-card h3{font-size:20px;font-weight:600;margin-bottom:20px;}
.contact-row{display:flex;flex-direction:column;gap:4px;padding:12px 0;border-top:1px solid rgba(255,255,255,.12);}
.contact-row:first-of-type{border-top:none;}
.contact-row .k{font-size:14px;font-weight:500;color:#9CA3AF;}
.contact-row .v{font-size:14px;color:#fff;}
.contact-row .v a{color:#fff;}
.contact-row.combined .v{font-size:18px;font-weight:600;letter-spacing:.02em;}
.btn--telegram{background:#0088cc;color:#fff;}
.btn--telegram:hover{background:#0077b3;}
.app-card{position:relative;border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;gap:8px;overflow:hidden;min-height:260px;}
.app-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,19,39,.24) 0%,rgba(7,19,39,.58) 100%);z-index:0;}
.app-card>*{position:relative;z-index:1;}
.app-card .ic{width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.22);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:4px;}
.app-card h3{font-size:20px;font-weight:600;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.35);}
.app-card p{font-size:14px;color:rgba(255,255,255,.92);text-shadow:0 1px 2px rgba(0,0,0,.35);}
.about-tabs{display:flex;gap:8px;margin-bottom:32px;border-bottom:1px solid #E5E7EB;}
.about-tab{padding:12px 20px;font-size:15px;font-weight:600;color:var(--text-secondary);background:transparent;border:none;border-bottom:3px solid transparent;cursor:pointer;}
.about-tab.active{color:var(--brand-blue);border-bottom-color:var(--brand-blue);}
.about-panel{display:none;}
.about-panel.active{display:block;}
.about-wide{display:flex;align-items:flex-start;gap:48px;}
.about-wide .about-text{flex:1;}
.about-wide .about-visual{flex:0 0 480px;height:320px;border-radius:var(--radius-card);overflow:hidden;}
.about-wide .about-visual img{width:100%;height:100%;object-fit:cover;}
.site-footer{background:var(--brand-navy);color:#fff;padding:72px 0 32px;}
.footer-top{display:flex;justify-content:space-between;gap:64px;flex-wrap:wrap;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{max-width:360px;}
.footer-brand .logo--footer{height:92px;}
.footer-brand .logo--footer img{height:100%;width:auto;display:block;}
.footer-brand p{font-size:16px;color:#9CA3AF;margin-top:12px;}
.footer-links{display:flex;gap:64px;flex-wrap:wrap;}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:#fff;}
.footer-col a{display:block;font-size:14px;color:#9CA3AF;margin-bottom:10px;transition:color .2s;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:24px;flex-wrap:wrap;}
.footer-bottom span{font-size:14px;color:#6B7280;}
.page-hero{padding:48px 0 24px;}
.page-hero-bg{position:relative;background:linear-gradient(160deg,rgba(7,19,39,.85) 0%,rgba(7,19,39,.6) 100%),url('images/warehouse-drums.jpg') center/cover no-repeat;color:#fff;padding:96px 0 64px;margin-top:calc(var(--nav-h)*-1);padding-top:calc(var(--nav-h)+80px);}
.page-hero-bg::before{content:"";position:absolute;inset:0;background:url('images/warehouse-drums.jpg') center/cover no-repeat;z-index:-2;}
.page-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(7,19,39,.85) 0%,rgba(7,19,39,.6) 100%);z-index:-1;}
.page-hero-bg .container{position:relative;z-index:1;}
.page-hero-bg .eyebrow{color:var(--brand-light-blue);}
.page-hero-bg .section-title{color:#fff;}
.page-hero-bg .section-lead{color:#D1D5DB;}
/* Product detail */
.pd-header{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.pd-title-cn{font-size:36px;font-weight:700;}
.pd-title-en{font-size:18px;color:var(--text-secondary);margin-top:6px;}
.pd-badge{display:inline-block;margin-top:12px;padding:5px 12px;background:#EEF2FF;color:var(--brand-blue);border-radius:6px;font-size:13px;font-weight:600;}
.id-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap-md);margin-bottom:var(--gap-lg);}
.id-cell{background:var(--bg-muted);border-radius:var(--radius-card);padding:24px;}
.id-cell .k{font-size:13px;color:var(--text-secondary);margin-bottom:8px;}
.id-cell .v{font-size:22px;font-weight:700;color:var(--brand-navy);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;}
.pd-section{margin-bottom:var(--gap-lg);}
.pd-section h3{font-size:22px;font-weight:600;margin-bottom:16px;}
.pd-usage{font-size:16px;color:var(--text-secondary);line-height:1.7;max-width:760px;}
.msds-box{display:flex;align-items:center;gap:24px;flex-wrap:wrap;background:linear-gradient(135deg,#EFF4FF,#F8FAFC);border:1px solid #DBEAFE;border-radius:var(--radius-card);padding:28px;}
.msds-box .msds-ic{width:56px;height:56px;border-radius:14px;background:#2563EB;color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.msds-box .msds-text{flex:1 1 320px;}
.msds-box .msds-text h4{font-size:18px;font-weight:600;margin-bottom:6px;}
.msds-box .msds-text p{font-size:14px;color:var(--text-secondary);}
.msds-detail{border:1px solid #DBEAFE;border-radius:var(--radius-card);background:linear-gradient(135deg,#EFF4FF,#F8FAFC);padding:24px;}
.msds-detail-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:18px;}
.msds-badge{background:var(--brand-blue);color:#fff;font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;white-space:nowrap;}
.msds-note{font-size:13px;color:var(--text-secondary);}
.msds-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.msds-item .k{font-size:14px;font-weight:600;color:var(--brand-navy);margin-bottom:8px;}
.msds-item ul{margin:0;padding-left:18px;font-size:14px;color:var(--text-secondary);}
.msds-item ul li{margin-bottom:4px;}
.msds-item p{font-size:14px;color:var(--text-secondary);margin:0;}
.msds-cta{margin-top:18px;}
.msds-foot{margin-top:12px;font-size:12px;color:#9CA3AF;}
.market-box{border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:24px;background:#fff;}
.market-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap;}
.market-date{font-size:13px;color:var(--text-secondary);}
.trend{font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;}
.trend-up{background:#FEE2E2;color:#B91C1C;}
.trend-down{background:#DCFCE7;color:#15803D;}
.trend-flat{background:#F1F5F9;color:#475569;}
.market-block{margin-bottom:16px;}
.market-block:last-child{margin-bottom:0;}
.market-block .k{font-size:14px;font-weight:600;color:var(--brand-navy);margin-bottom:6px;}
.market-block p{font-size:14px;color:var(--text-secondary);margin:0;}
.factor-list{margin:0;padding-left:18px;font-size:14px;color:var(--text-secondary);}
.factor-list li{margin-bottom:4px;}
@media(max-width:768px){.msds-grid{grid-template-columns:1fr;}}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap-md);}
.news-link-card{display:block;background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:24px;color:inherit;transition:all .2s;}
.news-link-card:hover{box-shadow:0 12px 30px rgba(7,19,39,.08);border-color:var(--brand-blue);transform:translateY(-2px);}
.news-link-card .n-meta{font-size:13px;color:var(--brand-blue);font-weight:600;margin-bottom:8px;}
.news-link-card h4{font-size:18px;font-weight:600;margin-bottom:8px;}
.news-link-card p{font-size:14px;color:var(--text-secondary);}
/* News */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap-md);}
.news-card{display:flex;flex-direction:column;gap:10px;background:var(--bg-muted);border-radius:var(--radius-card);padding:28px;transition:all .2s;color:inherit;height:100%;}
.news-card:hover{background:#fff;border:1px solid var(--brand-blue);transform:translateY(-2px);}
.news-card .n-meta{font-size:13px;color:var(--brand-blue);font-weight:600;}
.news-card h3{font-size:20px;font-weight:600;line-height:1.35;}
.news-card p{font-size:14px;color:var(--text-secondary);flex:1;}
.news-card .n-more{font-size:14px;font-weight:600;color:var(--brand-blue);}
.news-img{height:180px;margin:-28px -28px 16px -28px;border-radius:var(--radius-card) var(--radius-card) 0 0;overflow:hidden;}
.news-img img{width:100%;height:100%;object-fit:cover;display:block;}
.news-detail{max-width:820px;margin:0 auto;}
.news-detail .n-meta{font-size:14px;color:var(--brand-blue);font-weight:600;margin-bottom:12px;}
.news-detail h1{font-size:36px;font-weight:700;line-height:1.25;margin-bottom:24px;}
.news-detail .n-body p{font-size:17px;color:var(--text-secondary);line-height:1.8;margin-bottom:18px;}
.news-detail .n-related{margin-top:40px;padding-top:32px;border-top:1px solid #ECEEF2;}
.news-detail .n-related h3{font-size:20px;font-weight:600;margin-bottom:16px;}
/* Catalog */
.catalog-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;}
.catalog-tab{padding:10px 18px;border-radius:999px;border:1px solid #D1D5DB;background:#fff;color:var(--text-secondary);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;}
.catalog-tab:hover{border-color:var(--brand-blue);color:var(--brand-blue);}
.catalog-tab.active{background:var(--brand-blue);color:#fff;border-color:var(--brand-blue);}
.catalog-toolbar{margin-bottom:24px;}
.catalog-search{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid #E5E7EB;border-radius:var(--radius-button);padding:10px 14px;position:relative;}
.catalog-search .search-icon{color:#9CA3AF;flex:0 0 auto;}
.catalog-search input{flex:1;min-width:200px;border:none;outline:none;font-size:15px;color:var(--text-primary);background:transparent;padding:6px 0;}
.search-btn{flex:0 0 auto;background:var(--brand-blue);color:#fff;border:none;border-radius:8px;padding:8px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;}
.search-btn:hover{background:#1d4ed8;}
.catalog-count{font-size:14px;color:var(--text-secondary);white-space:nowrap;}
.search-jump{display:inline-flex;align-items:center;gap:10px;background:var(--brand-blue);color:#fff;border-radius:var(--radius-button);padding:13px 26px;font-size:15px;font-weight:600;text-decoration:none;transition:background .2s,transform .2s;}
.search-jump:hover{background:#1d4ed8;transform:translateY(-1px);}
.catalog-disclaimer{font-size:13px;color:#6B7280;margin-top:12px;line-height:1.5;}
.catalog-table-wrap{background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);overflow:hidden;margin-bottom:var(--gap-md);}
.catalog-table{width:100%;border-collapse:collapse;font-size:14px;}
.catalog-table th{background:#F8FAFC;text-align:left;padding:14px 16px;font-weight:600;color:var(--text-primary);border-bottom:1px solid #ECEEF2;white-space:nowrap;}
.catalog-table td{padding:16px;border-bottom:1px solid #F1F5F9;vertical-align:top;}
.catalog-table tbody tr:last-child td{border-bottom:none;}
.catalog-table tbody tr:hover{background:#F8FAFC;}
.prod-name-cn{font-weight:600;color:var(--text-primary);}
.prod-name-en{font-size:12px;color:#6B7280;margin-top:2px;}
.prod-badge{display:inline-block;margin-top:6px;padding:3px 8px;background:#EEF2FF;color:var(--brand-blue);border-radius:4px;font-size:11px;font-weight:600;}
.prod-usage{color:var(--text-secondary);line-height:1.5;max-width:320px;}
.prod-price{color:#B45309;font-weight:600;}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;}
.catalog-cards{display:none;}
.catalog-card{background:#fff;border:1px solid #ECEEF2;border-radius:var(--radius-card);padding:20px;margin-bottom:16px;}
.catalog-card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;}
.catalog-card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px;}
.catalog-card-grid div{background:#F8FAFC;border-radius:8px;padding:10px 12px;}
.catalog-card-grid div span{display:block;font-size:12px;color:#6B7280;margin-bottom:2px;}
.catalog-card-grid div strong{font-size:14px;color:var(--text-primary);}
.catalog-card-row{margin-bottom:12px;}
.catalog-card-row span{font-size:12px;color:#6B7280;display:block;margin-bottom:4px;}
.catalog-card-row p{font-size:14px;color:var(--text-secondary);line-height:1.5;}
.catalog-card.hidden,.catalog-table tbody tr.hidden{display:none;}
@media (max-width:1280px){
  .nav{gap:18px;}
  .nav>a,.nav-item>a{font-size:13px;}
  .lang-switch{padding:4px 9px;font-size:11px;}
  .header-cta{padding:8px 14px;font-size:13px;margin-left:6px;}
}
@media (max-width:1120px){
  .nav{gap:12px;}
  .nav>a,.nav-item>a{font-size:12px;padding:20px 0;}
  .lang-switch-group{gap:4px;margin-left:6px;}
  .lang-switch{padding:3px 8px;font-size:10px;}
  .header-cta{padding:7px 12px;font-size:12px;margin-left:4px;}
  .logo{height:64px;}
}
@media (max-width:1024px){
.about-top,.hero .container,.contact-cta .container{flex-direction:column;align-items:flex-start;}
.hero-visual,.about-visual,.contact-side{flex:none;width:100%;}
  .about-text{max-width:100%;}
  .grid-3,.app-grid,.prod-grid,.cat-grid,.log-cards,.news-grid,.id-grid,.related-grid{grid-template-columns:repeat(2,1fr);}
  .log-stats{grid-template-columns:repeat(2,1fr);}
  .catalog-table-wrap{display:none;}
  .catalog-cards{display:block;}
  .catalog-search{flex-direction:column;align-items:stretch;}
  .catalog-count{text-align:right;}
  .why-log{padding:28px;}
  .why-log::before{background:linear-gradient(180deg,rgba(7,19,39,.84) 0%,rgba(7,19,39,.80) 100%);}
}
@media (max-width:860px){
  .nav{display:none;}
  .about-cards,.grid-3,.app-grid,.prod-grid,.cat-grid,.log-cards,.news-grid,.id-grid,.related-grid,.log-stats{grid-template-columns:1fr;}
  .section-title{font-size:32px;}
  .hero-title{font-size:40px;}
  .cta-text h2{font-size:36px;}
  :root{--section-padding-y:64px;}
}
@media (max-width:520px){
  .hero-stats{gap:28px;}
  .footer-links{gap:32px;}
}