:root{--navy:#09233a;--navy2:#0d3555;--blue:#0868b2;--cyan:#35a8df;--orange:#ef7d00;--ink:#142334;--muted:#607184;--line:#dce5ed;--soft:#f4f7fa;--white:#fff;--shadow:0 16px 42px rgba(9,35,58,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);line-height:1.75;background:#fff}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.wrap{width:min(1200px,calc(100% - 36px));margin:auto}.top{background:#071c2e;color:#d7e4ef;font-size:13px}.top .wrap{display:flex;justify-content:space-between;padding:7px 0;gap:20px}.head{background:#fff}.headin{display:flex;align-items:center;justify-content:space-between;padding:18px 0}.brand strong{font-size:23px;display:block}.brand span{font-size:12px;color:var(--muted)}.headcontact{display:flex;align-items:center;gap:24px}.tel b{font-size:22px;color:var(--blue)}.tel small{display:block;color:var(--muted)}.qrmini{display:flex;align-items:center;gap:10px;border-left:1px solid var(--line);padding-left:18px}.qrmini img{width:72px;height:72px;object-fit:contain}.qrmini b{display:block}.qrmini span{font-size:12px;color:var(--muted)}
.nav{background:var(--navy);position:sticky;top:0;z-index:30;box-shadow:0 5px 18px rgba(0,0,0,.12)}.navin{display:flex;justify-content:space-between;align-items:center}.links{display:flex}.links a{color:#e9f1f7;padding:17px 20px}.links a:hover,.links a.active{background:rgba(255,255,255,.10)}.cta{background:var(--orange)!important;color:#fff!important;font-weight:700}.menu{display:none;background:none;border:0;color:#fff;font-size:27px;padding:13px}
.hero{min-height:640px;background:linear-gradient(90deg,rgba(5,22,37,.94),rgba(5,36,60,.72),rgba(5,36,60,.15)),url('images/hero_pipes.webp') center/cover;display:flex;align-items:center;color:#fff}.hero .inner{padding:86px 0}.kicker{font-size:13px;letter-spacing:2px;font-weight:800;color:#73c4ef}.hero h1{font-size:clamp(40px,5.6vw,72px);line-height:1.12;margin:18px 0 22px;max-width:840px}.hero h1 em{font-style:normal;color:#ff982f}.hero p{max-width:760px;font-size:18px;color:#d4e1ec}.buttons{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:4px;padding:12px 22px;font-weight:800;border:1px solid transparent}.btn.orange{background:var(--orange);color:#fff}.btn.ghost{border-color:rgba(255,255,255,.7);color:#fff}.btn.blue{background:var(--blue);color:#fff}
.metrics{margin-top:-48px;position:relative;z-index:3}.metricgrid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:var(--shadow)}.metric{padding:25px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric b{display:block;font-size:18px}.metric span{font-size:13px;color:var(--muted)}
.section{padding:88px 0}.section.soft{background:var(--soft)}.titleline{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px}.titleline h2{font-size:38px;line-height:1.25;margin:7px 0}.titleline p{max-width:560px;color:var(--muted);margin:0}.eyebrow{font-size:13px;letter-spacing:2px;color:#4baee5;font-weight:800}
.prodgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.prod{background:#fff;border:1px solid var(--line);box-shadow:0 10px 26px rgba(9,35,58,.06);overflow:hidden;transition:.2s}.prod:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.prod img{width:100%;height:220px;object-fit:cover}.prod .body{padding:20px}.prod small{color:var(--blue);font-weight:700}.prod h3{font-size:21px;margin:8px 0}.prod p{font-size:14px;color:var(--muted);min-height:72px}.arrow{color:var(--blue);font-weight:800}
.aboutsplit{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.aboutphoto{position:relative}.aboutphoto img{width:100%;height:500px;object-fit:cover;box-shadow:var(--shadow)}.aboutphoto:after{display:none;content:none}.aboutcopy h2{font-size:40px;line-height:1.3}.aboutcopy p{color:var(--muted)}.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.checks span:before{content:"✓";color:var(--orange);font-weight:900;margin-right:8px}
.appgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.app{background:#fff;border:1px solid var(--line);padding:26px;min-height:230px}.appicon{width:56px;height:56px;border-radius:14px;background:#eaf5fc;color:var(--blue);display:grid;place-items:center;font-size:28px}.app h3{margin:14px 0 8px}.app p{color:var(--muted);font-size:14px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{background:var(--navy);color:#fff;padding:27px}.step b{font-size:32px;color:#65c1ef}.step h3{margin:8px 0}.step p{font-size:14px;color:#bcd0df}
.articlegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.articlecard{border:1px solid var(--line);padding:24px;background:#fff}.articlecard small{color:var(--blue);font-weight:700}.articlecard h3{line-height:1.45}.articlecard p{color:var(--muted);font-size:14px}
.banner{background:linear-gradient(90deg,#09233a,#0e456f);color:#fff;padding:60px 0}.banner .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px}.banner h2{font-size:36px;margin:0}.banner p{color:#c8d8e5}
.pagehero{background:linear-gradient(90deg,rgba(7,28,46,.96),rgba(12,62,99,.80)),url('images/factory_about.webp') center/cover;color:#fff;padding:90px 0}.pagehero h1{font-size:48px;margin:8px 0}.crumb{font-size:13px;color:#b8d6ea}.contentgrid{display:grid;grid-template-columns:260px 1fr;gap:30px}.side{background:#fff;border:1px solid var(--line);align-self:start;position:sticky;top:78px}.side h3{background:var(--blue);color:#fff;margin:0;padding:16px}.side a{display:block;padding:13px 16px;border-top:1px solid var(--line);color:#42576a}.side a:hover{background:#edf6fc;color:var(--blue)}
.productrows{display:grid;grid-template-columns:1fr 1fr;gap:24px}.productbox{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 8px 22px rgba(9,35,58,.05)}.productbox img{height:280px;width:100%;object-fit:cover}.productbox .copy{padding:24px;display:flex;flex-direction:column;flex:1}.productbox h2{font-size:26px;margin:6px 0}.productbox p{color:var(--muted)}.spec{border-collapse:collapse;width:100%;font-size:14px;margin:12px 0}.spec th,.spec td{border:1px solid var(--line);padding:10px;text-align:left}.spec th{background:#f0f5f9;width:92px}.productbox .btn{margin-top:auto;align-self:flex-start}
.profilehero{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}.profilehero img{height:480px;width:100%;object-fit:cover}.profilehero h2{font-size:40px;line-height:1.35}.profilehero p{color:var(--muted)}.values{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.value{border-top:4px solid var(--blue);padding:22px;background:#fff;box-shadow:0 8px 20px rgba(9,35,58,.06)}.value h3{margin-top:5px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.timeline div{border:1px solid var(--line);padding:22px;background:#fff}.timeline b{color:var(--orange);font-size:24px}
.articlelist{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.articlelist article{background:#fff;border:1px solid var(--line);padding:26px}.articlelist h2{font-size:23px;line-height:1.45}.articlelist p{color:var(--muted)}.articlemain{max-width:850px;margin:auto}.articlemain h1{font-size:42px;line-height:1.35}.articlemain .lead{font-size:18px;color:#4c6173;border-left:4px solid var(--orange);padding-left:18px}.articlemain h2{margin-top:38px}.articlemain p{color:#34495b}.articlemain .note{background:#eef6fb;padding:18px;border:1px solid #d5e8f5}
.contactgrid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px}.contactcard{background:var(--navy);color:#fff;padding:38px}.contactcard p{color:#c5d6e3}.contactitem{margin:18px 0}.contactitem b{display:block;color:#65c1ef}.qrbox{display:flex;align-items:center;gap:18px;margin-top:25px;padding-top:22px;border-top:1px solid rgba(255,255,255,.15)}.qrbox img{width:150px;height:150px}.inquiry{background:#fff;border:1px solid var(--line);padding:35px}.inquiry li{margin:12px 0}
.footer{background:#061a2a;color:#aebdca;padding:46px 0 0}.footgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:42px}.footer h3{color:#fff}.footer a{display:block;margin:7px 0}.copyr{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding:16px 0;font-size:13px}
@media(max-width:980px){.headcontact{display:none}.prodgrid{grid-template-columns:repeat(2,1fr)}.appgrid,.articlegrid{grid-template-columns:repeat(2,1fr)}.aboutsplit,.profilehero,.contactgrid{grid-template-columns:1fr}.contentgrid{grid-template-columns:1fr}.side{position:static}.productrows{grid-template-columns:1fr 1fr}.values,.timeline,.process{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.top .wrap{display:block}.menu{display:block}.links{display:none;position:absolute;left:0;right:0;top:100%;background:var(--navy);flex-direction:column}.links.open{display:flex}.navin{position:relative}.cta{margin-left:auto}.hero{min-height:560px}.hero .inner{padding:65px 0}.metricgrid,.prodgrid,.appgrid,.articlegrid,.productrows,.articlelist,.values,.timeline,.process,.footgrid{grid-template-columns:1fr}.metric{border-right:0;border-bottom:1px solid var(--line)}.titleline,.banner .wrap{display:block}.section{padding:60px 0}.aboutphoto img,.profilehero img{height:320px}.productbox img{height:240px}.pagehero{padding:65px 0}.pagehero h1{font-size:36px}.articlemain h1{font-size:32px}.checks{grid-template-columns:1fr}.qrbox{flex-direction:column;align-items:flex-start}}


/* === 2026 产品中心与应用领域升级 === */

.section.tight{padding:72px 0}
.introbar{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 26px;margin-bottom:24px;box-shadow:0 10px 26px rgba(9,35,58,.05)}
.introbar p{margin:8px 0 0;color:var(--muted)}
.cataloggrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.catalogcard{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 10px 28px rgba(9,35,58,.06);display:flex;flex-direction:column;transition:.22s}
.catalogcard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.catalogcard img{width:100%;height:220px;object-fit:cover}
.catalogbody{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.catalogbody h2,.catalogbody h3{margin:0;font-size:24px;line-height:1.35}
.catalogbody p{margin:0;color:var(--muted);font-size:14px}
.tagrow{display:flex;flex-wrap:wrap;gap:8px}
.tagrow span{display:inline-block;padding:4px 9px;border-radius:999px;background:#edf6fc;color:var(--blue);font-size:12px;font-weight:700}
.catbtns{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:6px}
.mini{font-size:12px;color:var(--muted)}
.groupjump{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:26px 0 6px}
.groupjump a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-weight:800;box-shadow:0 8px 18px rgba(9,35,58,.05)}
.groupjump a small{display:block;margin-top:4px;font-weight:400;color:var(--muted)}
.groupjump a:hover{border-color:#9ccfee;color:var(--blue)}
.groupblock{margin-top:34px}
.grouphead{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:16px}
.grouphead h2{margin:0;font-size:30px}
.grouphead p{margin:0;max-width:680px;color:var(--muted)}
.detailhero{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start}
.detailhero img{width:100%;height:420px;object-fit:cover;border-radius:14px;box-shadow:var(--shadow)}
.detailpanel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 10px 28px rgba(9,35,58,.06)}
.detailpanel h1{font-size:40px;line-height:1.3;margin:8px 0 16px}
.detailpanel .lead{font-size:16px;color:#42576a;margin-bottom:18px}
.bulletlist{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;margin:18px 0}
.bulletlist span:before{content:"•";color:var(--orange);font-weight:900;margin-right:7px}
.graynote{background:#f5f8fb;border:1px solid var(--line);border-radius:10px;padding:14px 16px;color:#42576a;font-size:14px}
.detailsections{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;margin-top:24px}
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 10px 24px rgba(9,35,58,.05)}
.panel h2{margin-top:0;font-size:26px}
.panel h3{font-size:18px;margin:16px 0 8px}
.panel ul{padding-left:20px;margin:8px 0}.panel li{margin:8px 0;color:#42576a}
.relatedgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:18px}
.relatedcard{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 8px 18px rgba(9,35,58,.05)}
.relatedcard img{height:170px;width:100%;object-fit:cover}.relatedcard div{padding:14px 16px}.relatedcard h3{margin:0 0 6px;font-size:18px}.relatedcard p{margin:0;color:var(--muted);font-size:13px}
.appphoto{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 10px 26px rgba(9,35,58,.06)}
.appphoto img{width:100%;height:230px;object-fit:cover}.appphoto .body{padding:18px 20px}.appphoto h3{margin:0 0 8px;font-size:24px}.appphoto p{margin:0;color:var(--muted);font-size:14px}.appmeta{margin-top:14px;font-size:13px;color:#42576a}
.appcards{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:980px){.cataloggrid{grid-template-columns:repeat(2,1fr)}.groupjump{grid-template-columns:repeat(2,1fr)}.detailhero,.detailsections,.appcards{grid-template-columns:1fr}.relatedgrid{grid-template-columns:repeat(2,1fr)}.detailhero img{height:360px}.detailpanel h1{font-size:34px}}
@media(max-width:700px){.cataloggrid,.groupjump,.relatedgrid,.appcards{grid-template-columns:1fr}.detailpanel h1{font-size:30px}.detailhero img{height:260px}.bulletlist{grid-template-columns:1fr}.grouphead{display:block}.grouphead h2{margin-bottom:8px}}


/* === 首页视觉升级：接近传统工业官网风格 === */
.home-top{background:#062541;color:#dce9f2;font-size:13px}.home-top-in{display:flex;justify-content:space-between;align-items:center;padding:7px 0}.home-head{background:#fff}.home-head-in{display:flex;justify-content:space-between;align-items:center;padding:17px 0}.home-brand{display:flex;align-items:center;gap:16px}.zydc-logo{display:flex;align-items:center;font-weight:900;font-style:italic;font-size:42px;letter-spacing:-8px;line-height:1}.zydc-logo i{font-style:italic;color:#0a5bab}.zydc-logo i:last-child{color:#ef7d00}.home-brand-copy strong{display:block;font-size:22px;line-height:1.3;color:#111}.home-brand-copy small{display:block;color:#5c6b79;margin-top:3px}.home-phone{display:flex;align-items:center;gap:11px;color:#0b5ea8}.phone-icon{font-size:34px;line-height:1}.home-phone small{display:block;color:#666}.home-phone b{display:block;font-size:22px}.home-nav{background:linear-gradient(90deg,#062d57,#082f61);position:sticky;top:0;z-index:40}.home-nav-in{display:flex;align-items:center}.home-nav .links{display:flex}.home-nav .links a{padding:15px 24px;color:#fff}.home-nav .links a.active,.home-nav .links a:hover{background:#0d6fbd}.home-nav-cta{margin-left:auto;background:#ef7d00;color:#fff;padding:15px 24px;font-weight:800}.home-hero{height:440px;background:url('images/home_factory_banner.webp') center/cover no-repeat;position:relative;display:flex;align-items:center;text-align:center;overflow:hidden}.home-hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(4,31,52,.06))}.home-hero-copy{position:relative;z-index:2}.home-hero h1{font-size:clamp(38px,4vw,58px);color:#0b4c89;margin:0 0 12px;font-weight:900;text-shadow:0 2px 1px rgba(255,255,255,.9)}.hero-slogan{font-size:23px;color:#1f2f3d;margin:0}.hero-sub{font-size:19px;color:#263d4f;margin:6px 0 0}.hero-actions{display:flex;justify-content:center;gap:12px;margin-top:24px}.hero-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}.hero-dots span{width:12px;height:12px;border-radius:50%;background:#fff;border:1px solid rgba(0,0,0,.18)}.hero-dots span.active{background:#0b66b5}.home-product-section{padding:34px 0 76px;background:#fff}.home-section-title{text-align:center;margin-bottom:28px}.home-section-title h2{font-size:32px;margin:0;color:#172535}.home-section-title h2:after{content:"";display:block;width:44px;height:3px;background:#0a68b5;margin:12px auto 7px}.home-section-title span{color:#777}.home-product-layout{display:grid;grid-template-columns:185px 1fr;gap:24px}.home-category{border:1px solid #dbe5ec;background:#fff}.home-category h3{margin:0;background:#0969b5;color:#fff;padding:14px 18px}.home-category a{display:block;padding:12px 16px;border-top:1px solid #e3e8ec;position:relative}.home-category a:after{content:"›";position:absolute;right:13px;color:#8aa0b1}.home-category a:hover{background:#f0f7fc;color:#0969b5}.recommend-head{background:#075aa9;color:#fff;display:flex;justify-content:space-between;padding:12px 16px;margin-bottom:18px}.recommend-head a{color:#fff}.home-product-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.home-product-card{border:1px solid #dfe7ed;background:#fff;box-shadow:0 5px 16px rgba(7,42,69,.06);overflow:hidden;text-align:center}.home-product-card img{width:100%;height:155px;object-fit:cover}.home-product-card span{display:block;font-size:17px;font-weight:800;margin:10px 5px 2px}.home-product-card small{display:block;color:#6f7d88;padding:0 5px 12px}.home-product-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(7,42,69,.12)}
@media(max-width:1100px){.home-product-grid{grid-template-columns:repeat(3,1fr)}.home-hero{height:400px}}
@media(max-width:700px){.home-top-in{display:block;text-align:center}.home-head-in{padding:12px 0}.home-phone{display:none}.home-brand-copy strong{font-size:17px}.home-brand-copy small{font-size:11px}.zydc-logo{font-size:32px}.home-nav-in{position:relative}.home-nav .links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#062d57}.home-nav .links.open{display:flex}.home-nav .links a{padding:13px 20px}.home-nav-cta{padding:13px 15px}.home-hero{height:360px;background-position:center}.home-hero h1{font-size:31px}.hero-slogan{font-size:17px}.hero-sub{font-size:15px}.hero-actions{margin-top:18px}.home-product-layout{grid-template-columns:1fr}.home-category{display:grid;grid-template-columns:repeat(2,1fr)}.home-category h3{grid-column:1/-1}.home-product-grid{grid-template-columns:repeat(2,1fr)}.home-product-card img{height:130px}}

/* === 经典蓝白工业官网统一视觉（最终版） === */
.classic-head{background:#fff;border-top:1px solid #edf1f4}
.classic-head-in{height:108px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.classic-brand{display:flex;align-items:center;gap:20px;min-width:0}
.classic-brand .zydc-logo{font-size:48px;letter-spacing:-9px;flex:0 0 auto}
.classic-brand-copy{min-width:0}
.classic-brand-copy strong{display:block;color:#111;font-size:27px;line-height:1.25;white-space:nowrap}
.classic-brand-copy small{display:block;color:#626d76;font-size:14px;margin-top:6px;white-space:nowrap}
.classic-contact{display:flex;align-items:center;gap:20px;flex:0 0 auto}
.classic-phone{display:flex;align-items:center;gap:13px;color:#075eb0}
.classic-phone .phone-icon{font-size:42px;line-height:1}
.classic-phone small{display:block;color:#4f5962;font-size:14px}
.classic-phone b{display:block;color:#075eb0;font-size:27px;line-height:1.15;letter-spacing:.5px}
.classic-qr{width:76px;height:76px;object-fit:contain;border:1px solid #e5eaee;padding:3px;background:#fff}
.classic-nav{background:linear-gradient(90deg,#062b55,#07356a);position:sticky;top:0;z-index:50;box-shadow:0 3px 10px rgba(0,32,66,.18)}
.classic-nav-in{display:flex;align-items:center;justify-content:center;position:relative}
.classic-nav .links{display:flex;width:100%;justify-content:center}
.classic-nav .links a{display:block;color:#fff;padding:17px 30px;font-size:17px;white-space:nowrap;transition:.18s}
.classic-nav .links a:hover,.classic-nav .links a.active{background:linear-gradient(180deg,#1280df,#0870c8)}
.classic-nav .menu{position:absolute;left:0;top:0}
.home-hero{height:520px;background-position:center center}
.home-hero-copy{max-width:880px}
.home-hero h1{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:clamp(42px,4.25vw,64px);letter-spacing:2px;color:#064584;text-shadow:0 2px 2px rgba(255,255,255,.92)}
.home-hero .hero-slogan{font-size:22px;color:#273540;margin-top:16px}
.home-hero .hero-sub{font-size:20px;color:#273540;margin-top:7px}
.home-hero .hero-trust{font-size:19px;letter-spacing:3px}
.home-hero-shade{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.02))}
.classic-products{background:#fff;padding:22px 0 74px}
.classic-product-title{text-align:center;margin:0 0 24px}
.classic-product-title h2{font-size:31px;margin:0;color:#111;line-height:1.3}
.classic-product-title h2:after{content:"";display:block;width:42px;height:4px;background:#0b6fc4;margin:12px auto 7px}
.classic-product-title span{font-size:14px;color:#7b8389}
.classic-product-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px;align-items:start}
.classic-category{border:1px solid #d9e1e7;background:#fff}
.classic-category h3{margin:0;background:#0872ca;color:#fff;text-align:center;padding:13px 12px;font-size:19px;font-weight:500}
.classic-category a{display:block;position:relative;border-top:1px solid #e3e8ec;padding:11px 17px;color:#30363b;font-size:15px;background:#fff}
.classic-category a:after{content:"›";position:absolute;right:14px;color:#a3abb1;font-size:21px;top:5px}
.classic-category a:hover{background:#f1f7fc;color:#0870c6}
.classic-product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px 13px}
.classic-product-card{display:block;background:#fff;border:1px solid #dfe5e9;overflow:hidden;box-shadow:0 3px 9px rgba(0,33,64,.05);transition:.18s}
.classic-product-card img{width:100%;height:178px;object-fit:cover;filter:saturate(.82)}
.classic-product-card span{display:block;background:#263546;color:#fff;text-align:center;padding:8px 5px;font-size:17px;line-height:1.2}
.classic-product-card:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(0,45,88,.14)}
.classic-pagehero{background:linear-gradient(90deg,rgba(4,35,69,.90),rgba(5,72,126,.72)),url('images/home_factory_banner.webp') center 55%/cover;color:#fff}
.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:30px}
.quality-card{background:#fff;border-top:4px solid #0871c7;padding:24px;box-shadow:0 8px 24px rgba(4,48,88,.07)}
.quality-card b{font-size:30px;color:#0871c7}.quality-card h3{font-size:21px;margin:6px 0}.quality-card p{margin:0;color:#617181;font-size:14px}
.quality-detail{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;background:#fff;border:1px solid #dce4ea;padding:30px}
.quality-detail img{width:100%;height:360px;object-fit:cover}.quality-detail h2{font-size:31px;margin-top:0}.quality-detail li{margin:9px 0;color:#405363}
.equipment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.equipment-grid article{background:#fff;border:1px solid #dce4ea;box-shadow:0 8px 20px rgba(4,48,88,.06)}.equipment-grid img{width:100%;height:245px;object-fit:cover}.equipment-grid h3{font-size:22px;margin:18px 20px 7px}.equipment-grid p{color:#617181;margin:0;padding:0 20px 22px}
.stock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.stock-grid a{background:#fff;border:1px solid #dce4ea;box-shadow:0 8px 20px rgba(4,48,88,.06)}.stock-grid img{width:100%;height:230px;object-fit:cover}.stock-grid h3{font-size:22px;margin:16px 19px 5px}.stock-grid p{color:#617181;margin:0;padding:0 19px 20px}
.notice-box{margin-top:30px;padding:26px 30px;background:#073563;color:#fff}.notice-box h2{margin:0 0 8px}.notice-box p{color:#dce9f4;margin:0 0 18px}
@media(max-width:1180px){.classic-nav .links a{padding:16px 19px}.classic-brand-copy strong{font-size:23px}.classic-product-card img{height:155px}.home-hero{height:460px}}
@media(max-width:900px){.classic-head-in{height:92px}.classic-brand .zydc-logo{font-size:39px}.classic-brand-copy strong{font-size:19px}.classic-brand-copy small{font-size:11px}.classic-phone b{font-size:21px}.classic-phone .phone-icon{font-size:33px}.classic-qr{width:64px;height:64px}.classic-nav-in{justify-content:flex-start;min-height:52px}.classic-nav .menu{display:block;position:static}.classic-nav .links{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:#062e5a}.classic-nav .links.open{display:flex}.classic-nav .links a{padding:13px 22px}.classic-product-grid{grid-template-columns:repeat(3,1fr)}.quality-grid{grid-template-columns:repeat(2,1fr)}.equipment-grid,.stock-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.classic-head-in{height:auto;padding:12px 0}.classic-brand{gap:11px}.classic-brand .zydc-logo{font-size:31px;letter-spacing:-6px}.classic-brand-copy strong{font-size:15px;white-space:normal}.classic-brand-copy small{font-size:10px;white-space:normal}.classic-phone{display:none}.classic-qr{width:56px;height:56px}.home-hero{height:340px;background-position:center}.home-hero h1{font-size:30px;letter-spacing:0}.home-hero .hero-slogan{font-size:16px}.home-hero .hero-sub{font-size:14px;margin-top:5px}.home-hero .hero-trust{font-size:13px;letter-spacing:1px}.classic-products{padding-top:18px}.classic-product-layout{grid-template-columns:1fr}.classic-category{display:grid;grid-template-columns:repeat(2,1fr)}.classic-category h3{grid-column:1/-1}.classic-product-grid{grid-template-columns:repeat(2,1fr)}.classic-product-card img{height:125px}.classic-product-card span{font-size:15px}.quality-grid,.equipment-grid,.stock-grid,.quality-detail{grid-template-columns:1fr}.quality-detail{padding:20px}.quality-detail img{height:260px}.equipment-grid img,.stock-grid img{height:210px}}


/* === 产品详情页协调排版修正版 === */
.hero-dots{display:none!important}
.detailhero{
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:0;
  align-items:stretch;
  background:#fff;
  border:1px solid #d9e3eb;
  border-radius:14px;
  overflow:hidden;
  box-shadow:0 14px 38px rgba(7,47,82,.09)
}
.detailhero>div:first-child{
  min-width:0;
  min-height:610px;
  display:flex;
  align-items:stretch;
  justify-content:center;
  background:#e9eff4
}
.detailhero>div:first-child img{
  width:100%;
  height:100%;
  min-height:610px;
  object-fit:contain;
  padding:24px;
  background:#eef3f7;
  border-radius:0;
  box-shadow:none
}
.detailpanel{
  min-width:0;
  height:100%;
  border:0;
  border-left:1px solid #d9e3eb;
  border-radius:0;
  box-shadow:none;
  padding:34px 36px 32px
}
.detailpanel h1{margin-top:5px}
.detailpanel .spec{margin:15px 0}
.detailpanel .graynote{margin-top:16px}
.detailsections{
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
  align-items:stretch;
  margin-top:26px
}
.detailsections>.panel{height:100%}
@media(max-width:980px){
  .detailhero{grid-template-columns:1fr}
  .detailhero>div:first-child{min-height:380px}
  .detailhero>div:first-child img{min-height:380px;height:380px;padding:18px}
  .detailpanel{border-left:0;border-top:1px solid #d9e3eb;padding:28px}
  .detailsections{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  .detailhero>div:first-child{min-height:260px}
  .detailhero>div:first-child img{min-height:260px;height:260px;padding:12px}
  .detailpanel{padding:22px 18px}
  .detailsections{grid-template-columns:1fr}
}


/* 2026-07-31 深度SEO技术文章升级 */
.article-page{background:#f3f6f9;padding:46px 0 76px}
.article-layout{display:grid;grid-template-columns:minmax(0,860px) 280px;gap:28px;align-items:start}
.article-content{background:#fff;border:1px solid #dce5ed;box-shadow:0 12px 34px rgba(4,48,88,.07);padding:42px 48px}
.article-content .crumb{font-size:13px;color:#6b7b8b;margin-bottom:20px}
.article-content h1{font-size:38px;line-height:1.35;margin:9px 0 15px;color:#102b47}
.article-meta{display:flex;gap:16px;flex-wrap:wrap;color:#718191;font-size:13px;border-bottom:1px solid #e3eaf0;padding-bottom:18px;margin-bottom:24px}
.article-cover{width:100%;height:390px;object-fit:cover;border-radius:4px;margin:10px 0 28px}
.article-content .lead{font-size:18px;color:#42586b;background:#eef6fb;border-left:4px solid #0b76c8;padding:17px 20px;margin:0 0 30px}
.article-content h2{font-size:25px;color:#103a61;margin:38px 0 14px;padding-bottom:9px;border-bottom:1px solid #dfe7ee}
.article-content h3{font-size:19px;color:#183d5e;margin:25px 0 10px}
.article-content p{color:#344b5f;line-height:2;margin:12px 0}
.article-content ul,.article-content ol{padding-left:25px;color:#344b5f;line-height:1.9}
.article-content li{margin:7px 0}
.article-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-table th,.article-table td{border:1px solid #d9e3eb;padding:11px 13px;text-align:left;vertical-align:top}
.article-table th{background:#eaf3f9;color:#153d5d;white-space:nowrap}
.article-tip{background:#eff7fc;border:1px solid #cfe3f1;border-left:4px solid #1479bc;padding:17px 19px;margin:20px 0;color:#345066}
.article-formula{font-family:Consolas,"Microsoft YaHei",sans-serif;background:#102e4b;color:#fff;border-radius:4px;padding:18px 20px;margin:18px 0;font-size:17px;text-align:center}
.article-faq{margin-top:42px}.article-faq details{border:1px solid #dce5ed;background:#fafcfd;margin:10px 0}.article-faq summary{cursor:pointer;font-weight:700;color:#173b59;padding:14px 16px}.article-faq details p{padding:0 16px 14px;margin:0}
.article-related{margin-top:38px;border-top:1px solid #e1e8ee;padding-top:24px}.article-related a{display:block;color:#0b69ac;margin:8px 0;font-weight:700}
.article-aside{position:sticky;top:76px}
.article-aside-card{background:#fff;border:1px solid #dce5ed;box-shadow:0 8px 22px rgba(4,48,88,.06);padding:22px;margin-bottom:18px}
.article-aside-card h3{margin:0 0 13px;color:#133a5c;font-size:19px}
.article-toc a{display:block;color:#50677a;padding:7px 0;border-bottom:1px dashed #e2e8ed;font-size:14px}
.article-toc a:hover{color:#0871ba}
.article-contact-box{background:#0b3b68;color:#fff}.article-contact-box h3{color:#fff}.article-contact-box p{color:#d6e5f1;font-size:14px}.article-contact-box b{display:block;font-size:24px;color:#fff;margin:9px 0}.article-contact-box .btn{width:100%;background:#ef7900;color:#fff}
.article-list-intro{background:#fff;border:1px solid #dce5ed;padding:25px 28px;margin-bottom:25px}.article-list-intro h2{margin:0 0 8px;color:#133b5e}.article-list-intro p{color:#5f7182;margin:0}.articlelist article{display:flex;flex-direction:column;box-shadow:0 8px 22px rgba(4,48,88,.05)}.articlelist article .arrow{margin-top:auto;padding-top:12px}
@media(max-width:980px){.article-layout{grid-template-columns:1fr}.article-aside{position:static}.article-content{padding:34px}.article-cover{height:330px}}
@media(max-width:700px){.article-page{padding:25px 0 55px}.article-content{padding:24px 18px}.article-content h1{font-size:29px}.article-cover{height:220px}.article-content h2{font-size:22px}.article-table{display:block;overflow-x:auto;white-space:normal}.article-meta{gap:7px 12px}}


/* floating contact widget 2026-08-01 */
.floating-contact-widget{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:9999;width:142px;background:#fff;border:1px solid #d7e2ea;border-radius:14px;box-shadow:0 14px 34px rgba(7,50,91,.16);overflow:hidden}
.floating-phone-box{display:block;background:#0d61a8;color:#fff;text-decoration:none;padding:12px 12px 10px;text-align:center}
.floating-phone-box .floating-label{display:block;font-size:12px;letter-spacing:.5px;opacity:.95;margin-bottom:5px}
.floating-phone-box strong{display:block;font-size:20px;line-height:1.15;word-break:break-all}
.floating-qr-box{padding:10px;text-align:center;background:#fff}
.floating-qr-box img{width:100%;aspect-ratio:1/1;object-fit:cover;border:1px solid #e2e8ef;border-radius:8px;display:block}
.floating-qr-box span{display:block;margin-top:8px;font-size:12px;color:#446072;font-weight:700}
@media(max-width:980px){.floating-contact-widget{width:122px;right:10px}.floating-phone-box strong{font-size:16px}}
@media(max-width:700px){.floating-contact-widget{width:98px;right:8px;border-radius:12px}.floating-phone-box{padding:10px 8px}.floating-phone-box .floating-label{font-size:11px;margin-bottom:4px}.floating-phone-box strong{font-size:14px}.floating-qr-box{padding:8px}.floating-qr-box span{font-size:11px}}

/* 2026-08-01 新增钛精密加工件与钛锻件 */
.cataloggrid-two{grid-template-columns:repeat(2,minmax(0,1fr));max-width:900px}
@media(max-width:700px){.cataloggrid-two{grid-template-columns:1fr;max-width:none}}


/* 2026-08-01 技术文章列表页删除说明框后的适配 */
.articles-list-section{padding-top:54px}
.articles-list-section .articlelist{margin-top:0}
@media(max-width:700px){.articles-list-section{padding-top:38px}}

        
/* ICP备案号 */
.icp-footer {
    width: 100%;
    margin-top: 18px;
    padding: 16px 10px 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    text-align: center;
    font-size: 14px;
    line-height: 1.8;
}

.icp-footer a {
    color: #d7e4f1;
    text-decoration: none;
}

.icp-footer a:hover {
    color: #ffffff;
    text-decoration: underline;
}

@media (max-width: 700px) {
    .icp-footer {
        font-size: 12px;
        padding-top: 14px;
    }
}