/* Tonghan visual system — 2026-10-19 */
:root{--navy:#000028;--navy2:#10103b;--mint:#00e6b8;--cyan:#00c7d4;--teal:#007d78;--ink:#10102f;--muted:#59626e;--line:#dfe4e9;--bg:#f3f5f7;--max:1240px;--shadow:0 12px 30px rgba(0,0,40,.08)}
html{scroll-padding-top:100px}body{font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.8;-webkit-font-smoothing:antialiased}
.container{width:min(var(--max),calc(100% - 88px))}
a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible{outline:3px solid #00a69b;outline-offset:5px}
.site-header{background:#fff;backdrop-filter:none;border-bottom:1px solid #e4e7ec}
.nav-wrap{height:88px;gap:26px}.brand{min-width:250px;gap:14px}.brand strong{font-size:18px;letter-spacing:.02em}.brand small{font-size:9px;color:#666d7b}
.main-nav{gap:24px;font-size:13px;white-space:nowrap}.main-nav a:not(.nav-cta)::after{background:var(--teal);bottom:-10px}
.nav-cta,.btn{border-radius:0;transition:background .2s,color .2s,transform .2s}
.nav-cta{background:var(--navy);padding:12px 20px}.nav-cta:hover{background:#007d78}
.btn{min-height:52px;padding:0 25px;font-size:14px;gap:18px}.btn-primary{background:linear-gradient(100deg,var(--mint),var(--cyan));color:var(--navy)}
.btn-primary:hover{background:#63f3d5;color:var(--navy);transform:none}.btn-ghost{border-color:#a1bec8;background:transparent}.btn-ghost:hover{background:#ffffff12;border-color:var(--mint)}
.hero{background:var(--navy);min-height:650px;overflow:hidden}
.hero-bg{background-size:cover;background-position:center;opacity:1}
.hero-overlay{background:linear-gradient(90deg,#000028 0%,rgba(0,0,40,.92) 25%,rgba(0,0,40,.45) 47%,rgba(0,0,40,0) 72%)}
.hero::after{display:none}.hero-grid{display:block;padding:100px 0 90px}.hero-copy{width:61%;max-width:750px}
.eyebrow{font-size:12px;letter-spacing:.08em;color:#becddc}.eyebrow span{background:var(--mint);width:28px}
.hero h1{font-size:clamp(34px,3.65vw,52px);font-weight:500;line-height:1.35;letter-spacing:-.035em;margin:24px 0}
.hero h1 em{color:#fff}.hero-copy>p{font-size:16px;line-height:1.95;max-width:590px;color:#d1d8e8}
.hero-actions{margin:32px 0 30px;gap:16px}.hero-tags{gap:0}.hero-tags span{border:0;border-radius:0;padding:0 15px;color:#bcc8d8;line-height:1.2;font-size:12px;border-left:1px solid #46526c}.hero-tags span:first-child{padding-left:0;border:0}
.stats-strip{background:#f4f6f8;border:0}.stats-grid{padding:38px 0}.stats-grid div{padding:0 28px;border-color:#d8dfe7}.stats-grid div:first-child{padding-left:0}.stats-grid strong{font-size:30px;font-weight:500;color:var(--navy);line-height:1.5}.stats-grid span{font-size:12px;color:#687280}
.section{padding:108px 0}.section-head{align-items:flex-end;margin-bottom:48px;gap:64px}.section-head>div{max-width:700px}
.kicker{color:var(--teal);font-size:11px;font-weight:700;letter-spacing:.2em;display:inline-block;margin-bottom:10px}
.section-head h2,.auth-copy h2,.team-copy h2,.about-copy h2,.contact-copy h2{font-size:36px;font-weight:500;letter-spacing:-.035em;line-height:1.45;margin:0}
.section-head p{font-size:14px;max-width:420px;line-height:1.9}.feature-card,.product-card,.industry-grid,.industry-grid article,.blow-scope,.team-numbers div,.photo-main,.photo-small,.gallery figure,.cert-grid a,.about-photo img,.photo-label,.knowledge-grid article,.inquiry-form,.inquiry-form input,.inquiry-form select,.inquiry-form textarea,.generated,.generated button{border-radius:0}
.strength-grid{gap:28px}.feature-card{border:0;border-top:2px solid #dbe6e9;background:#fff;padding:24px 0 0;min-height:250px}
.feature-card .num{font-size:14px;color:var(--teal);font-weight:500}.feature-card h3{font-size:20px;font-weight:500;margin:30px 0 14px}.feature-card p{font-size:14px;margin-bottom:0}
.feature-card:hover{transform:none;box-shadow:none;border-color:var(--teal)}.mini-line{display:none}
.products{background:var(--navy)}.products .kicker,.inventory .kicker,.blow-systems .kicker,.contact .kicker{color:var(--mint)}
.section-head.light p{color:#b9c3d8}.product-grid{gap:20px}.product-card{border-color:#303154;padding:30px;min-height:370px;display:flex;flex-direction:column;transition:border-color .2s}
.product-card h3{font-weight:500;font-size:23px;margin:22px 0 18px}.product-card>span,.product-card:not(.accent)>span{color:#97ded5;font-weight:500;font-size:11px}
.product-card ul{font-size:14px;margin-bottom:24px;max-width:95%}.product-card a{margin-top:auto;align-self:flex-start;min-height:32px;display:inline-flex;align-items:center;gap:12px;color:#fff}.product-card a:hover{color:var(--mint)}
.product-card:hover{border-color:#00c7b0}.product-card:not(.accent)::after{background:linear-gradient(90deg,rgba(0,0,40,.93),rgba(0,0,40,.73) 45%,rgba(0,0,40,.2))}
.product-card.accent{background:linear-gradient(135deg,#00e6b8,#00bbcf);color:var(--navy);border:1px solid transparent}
.product-card.accent>span,.product-card.accent p,.product-card.accent a{color:var(--navy)}.product-card.accent h3{font-size:28px}.product-card.accent p{font-size:16px;margin-top:10px}.product-card.accent a{border-bottom:1px solid #00002880}
.industry-grid{grid-template-columns:repeat(6,1fr);border:0;gap:20px}.industry-grid article{grid-column:span 2;background:#f3f5f7;border:0;border-top:2px solid #e0e6ec;padding:28px 30px;min-height:260px}
.industry-grid article:nth-child(n+4){grid-column:span 3}.industry-grid b{color:var(--teal);font-size:12px;font-weight:500}.industry-grid h3{font-size:22px;font-weight:500;margin:30px 0 14px}.industry-grid p{font-size:14px;margin:0}.industry-grid article:hover{border-color:var(--teal)}
.blow-systems{background:var(--navy2);color:#fff;border:0}.blow-systems .section-head p{color:#c0c8dd}
.blow-layout{gap:64px;align-items:center}.blow-scope{background:transparent;border:0;border-left:2px solid var(--mint);padding:8px 0 8px 32px}
.blow-scope h3{font-size:24px;font-weight:500;margin:8px 0 26px}.machine-types{border-color:#363656}.machine-types li{border-color:#363656;font-weight:400;font-size:19px}.machine-types li::before{color:var(--mint)}
.blow-scope p{color:#bbc6d8;font-size:14px}.delivery-steps{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.delivery-steps li,.delivery-steps li:first-child{display:block;padding:0 0 24px;border-bottom:1px solid #353557}
.delivery-steps li>span{display:block;color:var(--mint);font-size:12px;margin-bottom:14px;padding:0;font-weight:500}
.delivery-steps h3{font-size:20px;font-weight:500;margin-bottom:12px}.delivery-steps p{color:#bbc6d8;font-size:14px}
.tech-team{background:#fff}.team-grid{gap:76px}.team-copy>p,.about-copy>p{font-size:15px;line-height:1.95;margin-top:24px}
.team-numbers{gap:0;margin:30px 0}.team-numbers div{background:transparent;border:0;border-left:2px solid #00b5a5;padding:0 30px 0 18px;min-width:145px}.team-numbers b{color:var(--navy);font-size:38px;font-weight:500}.team-numbers span{font-size:12px}
.check-list{font-size:13px;gap:12px 18px}.check-list li::before{color:var(--teal)}
.photo-stack{min-height:520px}.photo-main{inset:0;box-shadow:none}.photo-main img{object-position:center}.photo-stack::after{content:"同汉技术团队 · 控制柜与现场服务";position:absolute;bottom:0;left:0;right:0;padding:26px 24px 18px;color:white;background:linear-gradient(transparent,#000028bd);font-size:12px}
.inventory{background:var(--navy)}.gallery{grid-template-columns:1.25fr 1fr 1fr;grid-auto-rows:220px;gap:16px}.gallery figure{position:relative;background:#12123b}.gallery .g-wide{grid-row:span 2}.gallery figure:last-child{grid-column:2/span 2}
.gallery figcaption{position:absolute;inset:auto 0 0;padding:30px 18px 15px;font-size:12px;color:#fff;background:linear-gradient(transparent,rgba(0,0,40,.8))}
.authorization{background:#f3f5f7}.auth-grid{grid-template-columns:1fr 1.05fr;gap:90px}.auth-note{background:#e8efef;border-color:var(--teal);padding:18px 20px;font-size:13px}.auth-note b{font-weight:400;line-height:1.8}
.cert-grid{gap:24px}.cert-grid a{background:#fff;padding:14px;border:1px solid #dce2e8;box-shadow:none;transition:transform .2s}.cert-grid a:hover{transform:translateY(-4px);border-color:var(--teal)}.cert-grid img{object-fit:contain}
.about{background:#fff}.about-grid{gap:76px;grid-template-columns:1fr 1fr}.about-photo img{aspect-ratio:4/4.2;object-position:center}.photo-label{background:var(--navy);color:#fff;padding:10px 18px;left:0;bottom:0;letter-spacing:.1em}
.timeline{margin:30px 0 0}.timeline div{padding:16px 0;grid-template-columns:62px 1fr}.timeline b{color:var(--teal);font-size:16px;font-weight:500}.timeline span{font-size:14px}
.knowledge{background:#f3f5f7}.knowledge-grid{gap:24px}.knowledge-grid article{border:0;border-top:2px solid #cadadb;padding:30px;display:flex;flex-direction:column}
.knowledge-grid span{color:var(--teal);font-size:12px;font-weight:500}.knowledge-grid h3{font-size:20px;font-weight:500}.knowledge-grid p{font-size:14px}.knowledge-grid a{font-size:13px;color:var(--teal);margin-top:auto;padding-top:16px;font-weight:700}.knowledge-grid a:hover{text-decoration:underline}.coming{font-size:12px;color:#65717e;margin-top:24px}
.contact{background:var(--navy);padding:100px 0}.contact-grid{gap:90px;grid-template-columns:1fr 1.1fr}.contact-copy h2{max-width:400px}.contact-copy p{color:#bac6d9;font-size:15px;line-height:1.9}.contact-info{margin-top:36px}
.contact-info>a,.contact-info>div{grid-template-columns:46px 1fr;gap:16px;padding:18px 0;border-color:#35354f}.contact-info b{color:#98a9be;font-weight:400}.contact-info>a span{font-size:clamp(16px,1.5vw,21px);color:var(--mint);overflow-wrap:anywhere}.contact-info>a:hover span{text-decoration:underline}.contact-info>div span{font-size:14px}
.inquiry-form{padding:34px;background:#f3f5f7}.inquiry-form label{font-size:12px;font-weight:500;color:var(--navy);margin-bottom:18px}
.inquiry-form input,.inquiry-form select,.inquiry-form textarea{font-weight:400;font-size:14px;background:#fff;border:1px solid #cbd2db;padding:11px 12px;min-height:46px}
.inquiry-form textarea{resize:vertical;min-height:130px}.inquiry-form input:focus,.inquiry-form select:focus,.inquiry-form textarea:focus{border-color:var(--teal);box-shadow:0 0 0 2px #00b3a222}
.form-tip{color:#5f6b78;line-height:1.8;margin-top:16px;font-size:12px}.generated{background:#e3e9ee}.generated pre{font-family:inherit;font-size:13px;overflow-wrap:anywhere}.generated button{background:var(--navy);padding:12px 20px}
.footer{background:var(--navy);border-top:1px solid #26264a;padding:45px 0 24px}.footer-brand b{font-size:14px;font-weight:500}.footer-brand span{color:#a8b3c7;font-size:11px}.footer-brand img{border-radius:0;padding:3px;width:42px;height:42px}.footer-links{font-size:12px;color:#bfc9dc;gap:22px}.footer-links a:hover{color:var(--mint)}
.copyright{border-color:#2a2a4b;color:#8d9bb2;font-size:11px;padding-top:22px;margin-top:34px}
.reveal,.reveal.visible{opacity:1;transform:none}.skip-link{position:absolute;top:-100px;left:20px;background:#fff;color:var(--navy);padding:12px 20px;z-index:100}.skip-link:focus{top:12px}
@media(min-width:1600px){.hero-bg{background-size:1600px auto;background-repeat:no-repeat;background-position:center}.hero{min-height:700px}}
@media(max-width:1150px){.main-nav{gap:16px;font-size:12px}.brand{min-width:220px}.brand strong{font-size:16px}.brand small{font-size:8px}.container{width:calc(100% - 64px)}.hero h1{font-size:40px}.team-grid,.about-grid,.auth-grid,.contact-grid{gap:45px}.section-head{gap:40px}}
@media(max-width:980px){.container{width:calc(100% - 48px)}.nav-wrap{height:76px}.main-nav{top:76px;padding:20px 24px;gap:6px;box-shadow:0 16px 30px #00002814;font-size:15px}.main-nav a{padding:12px 14px}.menu-btn{min-height:44px;min-width:44px}.menu-btn span{background:var(--navy)}.hero{min-height:620px}.hero-grid{padding:88px 0}.hero-copy{width:75%;max-width:620px}.hero-overlay{background:linear-gradient(90deg,#000028 0%,#000028dd 40%,#00002822)}.hero h1{font-size:42px}.stats-grid{grid-template-columns:repeat(5,1fr);gap:0}.stats-grid div{padding:0 14px;border-right:1px solid #d8dfe7}.stats-grid div:nth-child(3){border-right:1px solid #d8dfe7}.stats-grid strong{font-size:22px}.section{padding:80px 0}.section-head{gap:22px;margin-bottom:36px}.section-head p{max-width:620px}.strength-grid{gap:30px}.feature-card{min-height:220px}.industry-grid{grid-template-columns:repeat(6,1fr);gap:16px}.industry-grid article{padding:24px;min-height:270px}.industry-grid h3{font-size:20px}.team-grid,.auth-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:42px}.blow-layout{gap:36px}.photo-stack{min-height:460px}.photo-main img{object-position:center 48%}.gallery{grid-template-columns:1fr 1fr;grid-auto-rows:230px}.gallery .g-wide{grid-row:span 2;grid-column:1}.gallery figure:last-child{grid-column:1/span 2}.cert-grid{max-width:670px}.about-photo img{aspect-ratio:16/10}.contact{padding:80px 0}.contact-copy h2{max-width:none}.footer-grid{gap:30px;align-items:flex-start}.footer-links{gap:14px;flex-wrap:wrap;max-width:310px}.knowledge-grid{gap:16px}.knowledge-grid article{padding:24px}}
@media(max-width:640px){.container{width:calc(100% - 40px)}.nav-wrap{height:72px}.brand{min-width:0;gap:10px}.brand img{width:38px;height:38px}.brand strong{font-size:16px}.main-nav{top:72px}.hero{min-height:auto}.hero-grid{padding:62px 0 54px}.hero-copy{width:100%}.hero-bg{background-size:auto 460px;background-position:60% 0;opacity:.45}.hero-overlay{background:linear-gradient(180deg,#00002844 0%,#000028b3 40%,#000028 95%)}.eyebrow{font-size:10px;letter-spacing:0;gap:8px}.eyebrow span{width:18px;flex-shrink:0}.hero h1{font-size:clamp(27px,7.1vw,40px);line-height:1.5;letter-spacing:-.04em;margin:22px 0 18px;font-weight:500}.hero-copy>p{font-size:14px;line-height:1.95}.hero-actions{flex-direction:row;gap:12px;margin:26px 0}.hero-actions .btn{flex:1;min-height:50px;padding:0 12px;font-size:13px}.hero-tags{row-gap:12px}.hero-tags span{font-size:10px;padding:0 10px}.hero-tags span:first-child{padding-left:0}.stats-grid{grid-template-columns:1fr 1fr;padding:16px 0;gap:0}.stats-grid div,.stats-grid div:first-child{padding:14px 10px;border-right:0;border-bottom:1px solid #dce2e8}.stats-grid div:nth-child(3){border-right:0}.stats-grid div:last-child{grid-column:span 2;border-bottom:0;display:flex;align-items:baseline;gap:18px}.stats-grid strong{font-size:27px}.stats-grid span{font-size:11px}.section{padding:64px 0}.section-head h2,.auth-copy h2,.team-copy h2,.about-copy h2,.contact-copy h2{font-size:28px;line-height:1.45}.kicker{font-size:10px;letter-spacing:.16em}.section-head{gap:18px;margin-bottom:30px}.section-head p{font-size:13px}.strength-grid{grid-template-columns:1fr;gap:28px}.feature-card{min-height:auto;padding-top:18px}.feature-card h3{margin:16px 0 10px}.feature-card p{font-size:14px}.product-grid{grid-template-columns:1fr;gap:18px}.product-card{min-height:350px;padding:28px}.product-card h3{font-size:24px}.industry-grid{grid-template-columns:1fr;gap:14px}.industry-grid article,.industry-grid article:nth-child(n+4){grid-column:auto;min-height:0;padding:24px}.industry-grid h3{margin:14px 0 10px;font-size:21px}.industry-grid p{font-size:14px}.blow-scope{padding:2px 0 2px 20px}.blow-scope h3{font-size:22px}.machine-types li{font-size:17px}.blow-layout{gap:38px}.delivery-steps{gap:22px}.delivery-steps h3{font-size:18px}.delivery-steps p{font-size:13px}.team-numbers div{min-width:0;flex:1;padding-left:16px;padding-right:10px}.team-numbers b{font-size:36px}.check-list{grid-template-columns:1fr;font-size:14px}.photo-stack{min-height:390px}.gallery{grid-template-columns:1fr 1fr;grid-auto-rows:190px;gap:10px}.gallery .g-wide{grid-column:1/span 2;grid-row:auto;height:240px}.gallery{grid-template-rows:240px 190px 190px}.gallery figure:last-child{grid-column:1/span 2}.gallery figcaption{font-size:11px;padding:26px 12px 12px}.cert-grid{grid-template-columns:1fr 1fr;gap:12px}.cert-grid a{padding:8px}.auth-note{font-size:12px}.about-photo img{aspect-ratio:4/3}.timeline span{font-size:13px}.knowledge-grid{grid-template-columns:1fr;gap:16px}.knowledge-grid article{padding:25px}.knowledge-grid h3{font-size:20px}.contact{padding:64px 0}.contact-grid{gap:32px}.contact-info>a span{font-size:19px}.inquiry-form{padding:24px 20px}.form-row{grid-template-columns:1fr;gap:0}.inquiry-form input,.inquiry-form select,.inquiry-form textarea{font-size:16px}.footer{padding:34px 0 22px}.footer-grid{flex-direction:column;gap:26px}.footer-brand b{font-size:13px}.footer-links{max-width:none;gap:14px 22px}.copyright{gap:10px;font-size:10px}.generated pre{font-size:12px}[id]{scroll-margin-top:88px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

html{scroll-padding-top:0}[id]{scroll-margin-top:88px}#top{scroll-margin-top:0}.main-nav a[aria-current="location"]::after{right:0}.menu-btn:focus-visible{outline:2px solid var(--teal);outline-offset:2px}@media(max-width:980px){[id]{scroll-margin-top:76px}}@media(max-width:640px){[id]{scroll-margin-top:72px}}

/* Representative industry imagery */
.industry-grid article{position:relative;isolation:isolate;overflow:hidden;min-height:320px;padding:28px 30px;border:0;background:#0c1831;color:#fff;display:flex;flex-direction:column;justify-content:flex-start}
.industry-grid article::before{content:"";position:absolute;inset:0;z-index:-2;background:var(--industry-image) var(--industry-position,center)/cover no-repeat;filter:saturate(.7);transition:transform .45s ease}
.industry-grid article::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(0,0,40,.14) 0%,rgba(0,0,40,.44) 28%,rgba(0,0,40,.88) 60%,rgba(0,0,40,.97) 100%)}
.industry-grid article b{align-self:flex-start;font-size:12px;font-weight:500;color:#88f6dd;line-height:1.5;padding:5px 9px;background:rgba(0,0,40,.65)}
.industry-grid article h3{margin:64px 0 12px;font-size:23px;font-weight:500;line-height:1.4;color:white}
.industry-grid article p{font-size:14px;color:#dbe3ef;line-height:1.85;max-width:560px}
.industry-grid article:hover::before{transform:scale(1.035)}
.industry-grid article:nth-child(1){--industry-image:url("assets/images/industry-packaging.jpg")}
.industry-grid article:nth-child(2){--industry-image:url("assets/images/industry-plastics.jpg")}
.industry-grid article:nth-child(3){--industry-image:url("assets/images/industry-printing.jpg")}
.industry-grid article:nth-child(4){--industry-image:url("assets/images/industry-motor.jpg")}
.industry-grid article:nth-child(5){--industry-image:url("assets/images/industry-automation.jpg")}
.industry-grid article:nth-child(4){--industry-position:center 35%}
@media(max-width:980px){.industry-grid article{padding:24px;min-height:340px}.industry-grid article h3{font-size:21px;margin-top:62px}}
@media(max-width:640px){.industry-grid article,.industry-grid article:nth-child(n+4){padding:25px;min-height:290px}.industry-grid article h3{font-size:23px;margin-top:58px}.industry-grid article p{font-size:14px}.industry-grid article::after{background:linear-gradient(180deg,rgba(0,0,40,.12),rgba(0,0,40,.5) 30%,rgba(0,0,40,.92) 65%,rgba(0,0,40,.97))}}

@media(max-width:980px){.section-head{align-items:flex-start}}

/* Company exterior photo: preserve the full entrance and sign */
#about .about-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:64px}#about .about-photo{width:100%;max-width:500px;margin:0 auto}#about .about-photo img{display:block;width:100%;height:auto;aspect-ratio:3/4;object-fit:contain} @media(max-width:980px){#about .about-grid{grid-template-columns:1fr;gap:36px}}

#about .about-copy h2{text-wrap:balance}

/* Keep the upper breaker row visible in the cabinet photo. */
#team .photo-main img{object-position:50% 20%}

/* User supplied blow-molding equipment photographs */ 
#cases .blow-machine-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:0 0 32px}
#cases .blow-machine-card{margin:0;border:1px solid #dce5e8;background:#fff;overflow:hidden}
#cases .blow-machine-visual{height:300px;background:#fff;padding:18px}
#cases .blow-machine-visual img{display:block;width:100%;height:100%;object-fit:contain}
#cases .blow-machine-card figcaption{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:#f3f7f8;color:#000028}
#cases .blow-machine-card h3{margin:0;font-size:21px}
#cases .blow-machine-card figcaption span{font-size:12px;color:#657780;white-space:nowrap}
@media(max-width:640px){#cases .blow-machine-gallery{grid-template-columns:1fr;gap:18px}#cases .blow-machine-visual{height:250px;padding:12px}#cases .blow-machine-card figcaption{padding:16px}#cases .blow-machine-card h3{font-size:19px}}