:root{--brand:#0b4a8e;--brand-600:#0a3f78;--brand-700:#08335f;--brand-50:#eef4fb;--brand-100:#dce8f6;--ink:#16202e;--text:#43505f;--muted:#6b7886;--line:#e4e9f0;--bg:#ffffff;--bg-alt:#f5f8fc;--bg-dark:#0e1b2c;--radius:14px;--radius-sm:10px;--shadow-sm:0 1px 3px rgba(16,32,46,.06), 0 1px 2px rgba(16,32,46,.04);--shadow-md:0 12px 30px rgba(16,32,46,.10);--shadow-lg:0 20px 55px rgba(16,32,46,.16);--container:1200px;--section-pad:80px;--maxw-text:820px;--font:"Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font);font-size:1.125rem;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--brand);text-decoration:none;transition:color .2s}a:hover{color:var(--brand-700)}img{max-width:100%;height:auto;display:block}ul{list-style:none}h1,h2,h3,h4{color:var(--ink);font-weight:800;line-height:1.18;letter-spacing:-.01em}h1{font-size:clamp(2.4rem,5vw,3.4rem);line-height:1.12;letter-spacing:-.02em}h2{font-size:clamp(1.85rem,3vw,2.5rem)}h3{font-size:1.3rem;font-weight:700}p{margin-bottom:1rem}.container{max-width:var(--container);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:14px 30px;border-radius:10px;font-weight:600;font-size:1rem;line-height:1;cursor:pointer;border:2px solid transparent;transition:background .2s,color .2s,box-shadow .2s,transform .15s;text-decoration:none}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(11,74,142,.25)}.btn-primary:hover{background:var(--brand-700);color:#fff;box-shadow:0 12px 26px rgba(11,74,142,.32)}.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand)}.btn-secondary:hover{background:var(--brand);color:#fff}.btn-lg{padding:17px 38px;font-size:1.06rem}.btn-block{width:100%}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%)blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s}.site-header.scrolled{box-shadow:var(--shadow-md)}.nav-container{max-width:var(--container);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:74px}.nav-logo{display:flex;align-items:center;gap:.6rem;font-size:1.3rem;font-weight:800;color:var(--ink)}.nav-logo:hover{color:var(--ink)}.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#1e88e5);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.15rem;box-shadow:var(--shadow-sm)}.nav-menu{display:flex;align-items:center;gap:28px}.nav-menu>li{position:relative}.nav-menu>li>a{display:inline-flex;align-items:center;gap:.35rem;color:var(--ink);font-weight:600;font-size:.98rem;padding:10px 0;position:relative}.nav-menu>li>a::after{content:"";position:absolute;left:0;bottom:4px;width:0;height:2px;background:var(--brand);transition:width .25s;border-radius:2px}.nav-menu>li>a:hover{color:var(--brand)}.nav-menu>li>a:hover::after{width:100%}.nav-submenu{position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .2s;z-index:50}.nav-menu>li:hover .nav-submenu{opacity:1;visibility:visible;transform:translateY(0)}.nav-submenu li a{display:block;padding:9px 14px;border-radius:8px;color:var(--text);font-weight:500;font-size:.95rem}.nav-submenu li a:hover{background:var(--brand-50);color:var(--brand)}.nav-quote{margin-left:8px}.nav-quote.btn{padding:11px 22px;font-size:.95rem}.nav-toggle{display:none;flex-direction:column;gap:5px;background:0 0;border:none;cursor:pointer;padding:8px}.nav-toggle span{width:26px;height:3px;background:var(--ink);border-radius:2px;transition:.25s}.nav-open .nav-toggle span:nth-child(1){transform:translateY(8px)rotate(45deg)}.nav-open .nav-toggle span:nth-child(2){opacity:0}.nav-open .nav-toggle span:nth-child(3){transform:translateY(-8px)rotate(-45deg)}.section-hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 80% -10%,#114a86 0%,transparent 60%),linear-gradient(120deg,#0e1b2c 0%,#0b3a6b 55%,#0b4a8e 100%);color:#fff}.section-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,6%) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:92px 0;min-height:660px}.hero-eyebrow{display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#dbeafe;font-weight:600;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;padding:7px 14px;border-radius:100px;margin-bottom:22px}.hero-title{color:#fff;font-size:clamp(2.4rem,5vw,3.4rem);margin-bottom:20px}.hero-description{color:rgba(255,255,255,.86);font-size:1.2rem;line-height:1.6;max-width:540px;margin-bottom:34px}.hero-cta{display:flex;gap:16px;flex-wrap:wrap}.hero .btn-primary{background:#fff;color:var(--brand);box-shadow:0 12px 30px rgba(0,0,0,.25)}.hero .btn-primary:hover{background:#eef4fb;color:var(--brand-700)}.hero .btn-secondary{background:0 0;color:#fff;border-color:rgba(255,255,255,.55)}.hero .btn-secondary:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}.hero-media{position:relative}.hero-media img{width:100%;height:500px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.14)}.hero-media::after{content:"";position:absolute;right:-14px;bottom:-14px;width:70%;height:70%;border:3px solid rgba(255,255,255,.18);border-radius:var(--radius);z-index:-1}.section-trust{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:30px 0}.trust-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}.trust-item{display:flex;align-items:center;gap:14px}.trust-icon{flex:none;width:46px;height:46px;border-radius:12px;background:#fff;border:1px solid var(--line);color:var(--brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}.trust-text strong{display:block;color:var(--ink);font-size:1rem;font-weight:700;line-height:1.25}.trust-text span{font-size:.82rem;color:var(--muted)}.section{padding:var(--section-pad)0}.section-head{max-width:760px;margin:0 auto 52px;text-align:center}.section-head.left{margin-left:0;text-align:left}.eyebrow{display:inline-block;color:var(--brand);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem;margin-bottom:12px}.section-title{color:var(--ink);margin-bottom:14px}.section-description{font-size:1.1rem;color:var(--muted);line-height:1.65}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}.card-icon{width:50px;height:50px;border-radius:13px;background:var(--brand-50);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:18px}.capabilities-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.capability-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:transform .25s,box-shadow .25s,border-color .25s}.capability-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}.capability-card h3{font-size:1.15rem;margin-bottom:8px}.capability-card p{color:var(--muted);font-size:.95rem;margin:0}.equipment-list{margin-top:36px;text-align:center}.equipment-list h3{font-size:1.05rem;color:var(--ink);margin-bottom:16px}.equipment-list ul{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.equipment-list li{background:var(--brand-50);color:var(--brand-700);padding:8px 18px;border-radius:100px;font-size:.9rem;font-weight:500}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--brand-100)}.service-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}.service-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.service-card:hover .service-media img{transform:scale(1.06)}.service-body{padding:24px 24px 26px;flex:1;display:flex;flex-direction:column}.service-body h3{font-size:1.2rem;color:var(--ink);margin-bottom:10px}.service-body p{color:var(--muted);font-size:.96rem;flex:1;margin-bottom:18px}.service-link{color:var(--brand);font-weight:700;display:inline-flex;align-items:center;gap:7px;font-size:.98rem}.service-link svg{transition:transform .2s}.service-card:hover .service-link svg{transform:translateX(4px)}.cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.cap-item{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px 24px}.cap-label{font-weight:700;color:var(--brand);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.cap-value{color:var(--ink);font-size:1.08rem;font-weight:500;line-height:1.5}.process-flow{display:grid;grid-template-columns:repeat(5,1fr);position:relative}.process-step{text-align:center;position:relative;padding:0 14px}.process-step:not(:last-child)::after{content:"";position:absolute;top:30px;left:56%;width:88%;height:3px;background:linear-gradient(90deg,var(--brand-100),var(--brand-50));z-index:1}.step-number{width:60px;height:60px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;margin:0 auto 18px;box-shadow:0 10px 22px rgba(11,74,142,.3);position:relative;z-index:2}.step-name{font-weight:700;color:var(--ink);font-size:1.05rem}.step-desc{color:var(--muted);font-size:.88rem;margin-top:6px;line-height:1.5}.materials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.material-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;transition:box-shadow .25s,border-color .25s}.material-card:hover{box-shadow:var(--shadow-md);border-color:var(--brand-100)}.material-card h3{color:var(--brand);margin-bottom:14px;font-size:1.15rem}.material-grades{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.grade-badge{background:var(--brand-50);color:var(--brand-700);padding:5px 13px;border-radius:100px;font-size:.85rem;font-weight:500}.alloy-info{font-size:.82rem;color:var(--muted)}.industries-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.industry-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}.industry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}.industry-card h3{margin-bottom:10px;color:var(--ink);font-size:1.15rem}.industry-applications{margin-top:14px}.industry-applications li{padding:5px 0 5px 22px;font-size:.92rem;color:var(--text);position:relative}.industry-applications li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;background:var(--brand)}.certs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.cert-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;text-align:center;background:#fff;transition:box-shadow .25s,border-color .25s}.cert-card:hover{box-shadow:var(--shadow-md);border-color:var(--brand-100)}.cert-card h3{font-size:1.5rem;color:var(--brand);margin-bottom:10px}.cert-card p{color:var(--muted);font-size:.92rem;margin-bottom:12px}.cert-link{font-size:.88rem;font-weight:600}.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:transform .25s,box-shadow .25s,border-color .25s}.why-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}.why-card h3{font-size:1.15rem;color:var(--ink);margin:4px 0 10px}.why-card p{color:var(--muted);font-size:.94rem;margin:0}.faq-accordion{max-width:820px;margin:0 auto}.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;background:#fff;transition:border-color .2s,box-shadow .2s}.faq-item:hover{border-color:var(--brand-100)}.faq-question{width:100%;padding:18px 22px;background:#fff;border:none;text-align:left;font-size:1.05rem;font-weight:600;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}.faq-icon{flex:none;width:26px;height:26px;color:var(--brand);transition:transform .25s;position:relative}.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}.faq-icon::before{top:11px;left:4px;width:18px;height:2.5px}.faq-icon::after{top:4px;left:11px;width:2.5px;height:18px;transition:transform .25s}.faq-open .faq-icon::after{transform:rotate(90deg);opacity:0}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}.faq-open .faq-answer{max-height:600px;padding:0 22px 20px}.faq-answer p{color:var(--text);margin:0}.section-rfq{background:var(--bg-alt)}.rfq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:40px;max-width:780px;margin:0 auto;box-shadow:var(--shadow-sm)}.rfq-form{margin-top:8px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-group{margin-bottom:18px}.form-group label{display:block;margin-bottom:7px;font-weight:600;font-size:.9rem;color:var(--ink)}.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:1rem;font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-50)}.btn-submit{margin-top:6px}.form-group input[type=file]{padding:10px 12px;font-size:.9rem;cursor:pointer;background:#fff}.form-help{margin:7px 0 0;font-size:.82rem;color:var(--text);line-height:1.5}.form-help-secondary{color:#6b7785;margin-top:3px}.section-content .container{max-width:var(--maxw-text)}.section-content,.article-content{font-size:1.08rem;line-height:1.8;color:var(--text)}.section-content h2,.article-content h2{font-size:1.9rem;margin:40px 0 16px;color:var(--ink)}.section-content h3,.article-content h3{font-size:1.4rem;margin:30px 0 12px;color:var(--ink)}.section-content p,.article-content p{margin-bottom:18px}.section-content ul,.section-content ol,.article-content ul,.article-content ol{margin:0 0 18px 22px}.section-content li,.article-content li{margin-bottom:8px}.section-content img,.article-content img{border-radius:var(--radius);margin:26px auto;max-width:100%;box-shadow:var(--shadow-sm)}.section-content a,.article-content a{color:var(--brand);font-weight:500;text-decoration:underline;text-underline-offset:3px}.section-content strong,.article-content strong{color:var(--ink)}.section-cap-overview{background:#fff}.cap-overview-head{margin-bottom:40px}.cap-overview-loc{display:inline-flex;align-items:center;gap:8px;margin-top:14px;color:var(--text);font-weight:600;font-size:1rem}.cap-overview-loc svg{width:18px;height:18px;color:var(--brand);flex:none}.cap-overview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:44px}.cap-overview-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .25s,box-shadow .25s,border-color .25s}.cap-overview-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-100)}.cap-overview-card .card-icon{margin-bottom:14px}.cap-overview-card h3{font-size:1.12rem;color:var(--ink);margin:0;line-height:1.35}.cap-spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.cap-spec-card{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .25s,border-color .25s}.cap-spec-card:hover{box-shadow:var(--shadow-sm);border-color:var(--brand-100)}.cap-spec-label{font-weight:700;color:var(--brand);font-size:.76rem;text-transform:uppercase;letter-spacing:.06em}.cap-spec-value{color:var(--ink);font-size:1.1rem;font-weight:600;line-height:1.45}.cap-spec-card--accent{background:var(--brand-50);border-color:var(--brand-100)}.cap-spec-card--materials .cap-spec-chips{display:flex;flex-wrap:wrap;gap:8px}.cap-chip{background:#fff;border:1px solid var(--line);color:var(--brand-700);padding:5px 12px;border-radius:100px;font-size:.85rem;font-weight:600}.site-footer{background:var(--bg-dark);color:#cbd5e1;padding:66px 0 28px}.footer-container{max-width:var(--container);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}.footer-brand .logo-mark{margin-bottom:16px}.footer-brand .f-name{color:#fff;font-size:1.25rem;font-weight:800;margin-bottom:12px}.footer-brand p{color:#93a4b8;font-size:.94rem;line-height:1.65;max-width:300px}.footer-col h4{color:#fff;font-size:1.02rem;margin-bottom:18px;position:relative;padding-bottom:12px}.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:36px;height:3px;background:var(--brand);border-radius:2px}.footer-col ul li{padding:6px 0}.footer-col a{color:#cbd5e1;font-size:.94rem}.footer-col a:hover{color:#fff}.footer-contact li{display:flex;flex-direction:column;gap:2px;padding:7px 0;font-size:.94rem}.footer-contact .fc-label{color:#7e90a6;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em}.footer-contact .fc-value{color:#e6edf5}.footer-contact a.fc-value:hover{color:#fff}.footer-bottom{max-width:var(--container);margin:44px auto 0;padding:22px 24px 0;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:.88rem;color:#8295ac}@media(max-width:1024px){.capabilities-grid,.services-grid,.materials-grid,.industries-grid,.certs-grid,.why-grid,.cap-overview-grid,.cap-spec-grid{grid-template-columns:repeat(2,1fr)}.trust-grid{grid-template-columns:repeat(3,1fr);row-gap:22px}.footer-container{grid-template-columns:1fr 1fr;gap:36px}.process-flow{grid-template-columns:repeat(5,1fr)}}@media(max-width:900px){.nav-toggle{display:flex}.nav-menu{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:12px 24px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);max-height:calc(100vh - 74px);overflow-y:auto}.nav-open .nav-menu{display:flex}.nav-menu>li{border-bottom:1px solid var(--line)}.nav-menu>li>a{padding:14px 0}.nav-menu>li>a::after{display:none}.nav-submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;border-radius:0;padding:0 0 8px 12px;min-width:0}.nav-submenu li a{padding:8px 0}.nav-quote{margin:12px 0 4px}.nav-quote.btn{width:100%}.hero-grid{grid-template-columns:1fr;gap:36px;padding:64px 0;min-height:auto}.hero-media{order:-1}.hero-media img{height:320px}.process-flow{grid-template-columns:1fr;gap:0;max-width:360px;margin:0 auto}.process-step{display:flex;align-items:flex-start;gap:18px;text-align:left;padding:14px 0}.process-step:not(:last-child)::after{top:60px;left:29px;width:3px;height:100%;background:var(--brand-100)}.step-number{margin:0;flex:none}.step-name{margin-top:6px}}@media(max-width:768px){:root{--section-pad:50px}.container{padding:0 18px}h1{font-size:clamp(2rem,7vw,2.5rem)}.hero-cta{flex-direction:column;align-items:stretch}.hero-cta .btn{width:100%}.capabilities-grid,.services-grid,.materials-grid,.industries-grid,.certs-grid,.why-grid,.cap-grid,.cap-overview-grid,.cap-spec-grid{grid-template-columns:1fr}.trust-grid{grid-template-columns:1fr 1fr}.form-row{grid-template-columns:1fr}.rfq-card{padding:28px 22px}.footer-container{grid-template-columns:1fr;gap:32px}.footer-bottom{margin-top:32px}}@media(max-width:480px){.trust-grid{grid-template-columns:1fr}.hero-media img{height:240px}.btn{padding:13px 22px;font-size:.95rem}}