*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,"Noto Sans SC","Microsoft YaHei",sans-serif;color:#182126;background:#f8faf9;line-height:1.65}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 40px));margin:auto}.skip-link{position:absolute;left:-9999px;top:10px}.skip-link:focus{left:10px;background:#fff;padding:8px 12px;z-index:999}.site-header{position:sticky;top:0;background:rgba(248,250,249,.92);backdrop-filter:blur(12px);border-bottom:1px solid #dce5e0;z-index:100}.nav-wrap{display:flex;align-items:center;gap:26px;min-height:78px}.brand{display:flex;align-items:center;gap:12px;min-width:310px}.brand-mark{font-size:24px;font-weight:900;letter-spacing:-1px;color:#0c5d48}.brand-text{display:flex;flex-direction:column;line-height:1.1}.brand-text strong{font-size:13px}.brand-text small{font-size:9px;letter-spacing:.06em;margin-top:4px}.nav{display:flex;gap:24px;margin-left:auto}.nav a{font-size:14px}.nav a:hover{color:#0c7a5b}.lang-switch,.menu-toggle{border:1px solid #b8c8c0;background:#fff;border-radius:999px;padding:9px 14px;cursor:pointer}.menu-toggle{display:none}.hero{position:relative;overflow:hidden;background:linear-gradient(90deg,rgba(7,42,35,.94),rgba(9,71,56,.88)),url("https://commons.wikimedia.org/wiki/Special:Redirect/file/Rail%20fixing%20machine.jpg") center/cover no-repeat;color:#fff;padding:110px 0 95px}.rail-lines:before,.rail-lines:after{content:"";position:absolute;width:70%;height:1px;background:rgba(255,255,255,.12);transform:rotate(-22deg);right:-12%;top:28%}.rail-lines:after{top:58%}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:70px;align-items:end}.eyebrow,.section-no,.country{font-size:12px;letter-spacing:.16em;font-weight:800;text-transform:uppercase}.hero h1{font-size:clamp(52px,7vw,92px);line-height:1.02;letter-spacing:-.04em;margin:24px 0}.accent{color:#a9d4c5}.lead{font-size:18px;max-width:720px;color:#d7e5e0}.hero-actions{display:flex;gap:14px;margin-top:35px;flex-wrap:wrap}.btn{padding:13px 18px;border-radius:4px;font-weight:700;font-size:14px}.btn.primary{background:#fff;color:#15362f}.btn.ghost{border:1px solid rgba(255,255,255,.35)}.hero-panel{border-left:1px solid rgba(255,255,255,.24);padding-left:30px}.hero-stat span{display:block;color:#b8d1ca}.hero-stat strong{display:block;margin-top:8px}.service-list{margin-top:34px}.service-list div{display:grid;grid-template-columns:42px 1fr;gap:10px;padding:16px 0;border-top:1px solid rgba(255,255,255,.16)}.service-list span{color:#90b8ab}.section{padding:95px 0}.two-col{display:grid;grid-template-columns:.85fr 1.15fr;gap:100px}.section h2{font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.035em;margin:14px 0 0}.copy p{font-size:17px;color:#4b5a54}.identity-card{margin-top:34px;padding:24px;border:1px solid #cbd8d2;background:#fff}.identity-card span,.identity-card strong{display:block}.identity-card span{font-size:13px;color:#72817b}.dark{background:#112722;color:#eff7f3}.section-heading{display:grid;grid-template-columns:1fr .8fr;gap:80px;align-items:end;margin-bottom:45px}.section-heading p{color:#7f928a;font-size:17px}.dark .section-heading p{color:#b3c5bf}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#355248;border:1px solid #355248}.product-card{background:#17352e;padding:28px;min-height:270px;display:flex;flex-direction:column}.product-card .num{color:#7aa897;font-size:13px}.product-card h3{font-size:23px;margin:26px 0 12px}.product-card p{color:#bed0c9;margin:0}.product-card small{margin-top:auto;padding-top:30px;color:#8eb4a6}.experience-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.project{background:#fff;border:1px solid #dbe4df;padding:30px;min-height:250px}.project.featured{grid-column:span 2;background:#eaf2ee}.project h3{font-size:27px;margin:8px 0 12px}.project p:not(.country){color:#52625b}.project strong{font-size:38px;color:#0d6b50;margin-right:10px}.project span{color:#6c7b75}.more-projects{margin-top:28px;border-top:1px solid #cbd8d2;padding-top:20px}.more-projects summary{cursor:pointer;font-weight:800}.more-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:22px}.more-grid>div{padding:22px;background:#fff;border:1px solid #dfe7e3}.note{font-size:13px;color:#73817b}.soft{background:#eef3f0}.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.support-grid article{background:#fff;padding:34px;border:1px solid #dbe4df}.support-grid h3{font-size:28px}.support-grid li{margin:8px 0}.after-sales{margin-top:20px;background:#17352e;color:#fff;padding:34px}.chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.chips span{border:1px solid #55746a;padding:8px 12px;border-radius:999px;font-size:13px}.contact{background:#f8faf9}.contact-grid{display:grid;grid-template-columns:1fr .8fr;gap:90px}.address-card{background:#fff;border:1px solid #d8e1dc;padding:32px}.address-card strong,.address-card span{display:block}.address-card hr{border:0;border-top:1px solid #dde6e1;margin:24px 0}.copy-btn{border:0;background:#0f604a;color:#fff;padding:11px 14px;cursor:pointer;border-radius:3px}footer{background:#0e211c;color:#d9e5e0;padding:26px 0}.footer-wrap{display:flex;justify-content:space-between;gap:20px}.footer-wrap strong{color:#fff;margin-right:8px}@media(max-width:900px){.nav{display:none;position:absolute;top:77px;left:0;right:0;background:#fff;padding:18px 20px;flex-direction:column;border-bottom:1px solid #dce5e0}.nav.open{display:flex}.menu-toggle{display:inline-block;margin-left:auto}.brand{min-width:0}.brand-text{display:none}.hero-grid,.two-col,.section-heading,.contact-grid{grid-template-columns:1fr;gap:35px}.hero-panel{border-left:0;border-top:1px solid rgba(255,255,255,.25);padding:25px 0 0}.product-grid{grid-template-columns:1fr 1fr}.support-grid{grid-template-columns:1fr}.section-heading{margin-bottom:28px}.section{padding:70px 0}}@media(max-width:620px){.container{width:min(100% - 28px,1180px)}.hero{padding:80px 0 65px}.product-grid,.experience-grid,.more-grid{grid-template-columns:1fr}.project.featured{grid-column:span 1}.hero h1{font-size:48px}.section h2{font-size:38px}.lang-switch{padding:8px 10px}.footer-wrap{flex-direction:column}}

/* Industry imagery added without changing the existing page layout */
.product-card{position:relative;overflow:hidden}
.product-card:before{content:"";position:absolute;inset:0 0 auto 0;height:74px;background-size:cover;background-position:center;opacity:.16;pointer-events:none}
.product-card:nth-child(1):before,.product-card:nth-child(4):before{background-image:url("https://upload.wikimedia.org/wikipedia/commons/7/7a/Train_axle.jpg")}
.product-card:nth-child(2):before,.product-card:nth-child(5):before{background-image:url("https://commons.wikimedia.org/wiki/Special:Redirect/file/Rail%20vehicle%20wheelset.png")}
.product-card:nth-child(3):before,.product-card:nth-child(6):before{background-image:url("https://commons.wikimedia.org/wiki/Special:Redirect/file/Rail%20fixing%20machine.jpg")}
.product-card>*{position:relative;z-index:1}
.experience-grid{position:relative}
.project.featured{background:linear-gradient(90deg,rgba(234,242,238,.97),rgba(234,242,238,.87)),url("https://upload.wikimedia.org/wikipedia/commons/7/7a/Train_axle.jpg") right center/44% auto no-repeat}


/* SEO detail pages — extends the existing CRRE visual system without changing homepage layout */
.detail-hero{background:#112722;color:#eff7f3;padding:72px 0 62px}
.detail-hero .breadcrumb{font-size:12px;letter-spacing:.08em;color:#a8beb6;margin-bottom:24px}
.detail-hero h1{font-size:clamp(42px,6vw,70px);line-height:1.04;letter-spacing:-.035em;margin:0 0 18px}
.detail-hero .subtitle{max-width:820px;color:#c4d6d0;font-size:18px}
.detail-section{padding:72px 0}
.detail-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:60px;align-items:start}
.detail-copy h2{font-size:36px;line-height:1.15;margin:0 0 18px}
.detail-copy h3{font-size:24px;margin-top:36px}
.detail-copy p,.detail-copy li{color:#4b5a54}
.detail-copy ul{padding-left:20px}
.detail-aside{background:#fff;border:1px solid #d8e1dc;padding:28px;position:sticky;top:105px}
.detail-aside h3{margin-top:0}
.detail-aside dl{margin:0}
.detail-aside dt{font-size:12px;color:#718079;text-transform:uppercase;letter-spacing:.08em;margin-top:18px}
.detail-aside dd{margin:5px 0 0;font-weight:700}
.detail-cta{margin-top:28px}
.detail-cta .btn{display:inline-block;background:#0f604a;color:#fff}
.related{background:#eef3f0;padding:64px 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{background:#fff;border:1px solid #dbe4df;padding:24px}
.related-card small{display:block;color:#0c7a5b;font-weight:800;margin-bottom:8px}
.related-card h3{margin:0 0 10px}
.related-card p{font-size:14px;color:#5c6b65}
.faq-list details{background:#fff;border:1px solid #dbe4df;margin:12px 0;padding:20px 22px}
.faq-list summary{cursor:pointer;font-weight:800}
.faq-list p{color:#52625b}
.seo-en{font-size:14px;color:#6a7973;margin-top:6px}
.product-card .seo-link{display:inline-block;margin-top:16px;color:#cce3da;font-size:13px;font-weight:800}
.product-card .seo-link:hover{text-decoration:underline}
@media(max-width:900px){.detail-grid{grid-template-columns:1fr}.detail-aside{position:static}.related-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.related-grid{grid-template-columns:1fr}.detail-section{padding:56px 0}.detail-hero{padding:58px 0 50px}}
.dark .chips a{border:1px solid #55746a;padding:8px 12px;border-radius:999px;font-size:13px;color:#dceae5}.dark .chips a:hover{background:#21473d}

.lang-btn{border:1px solid rgba(255,255,255,.22);background:transparent;color:inherit;padding:8px 12px;font:inherit;font-size:12px;font-weight:800;cursor:pointer}
.site-header .lang-btn{border-color:#cfd8d3;background:#fff;color:#112722}