@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components,utilities;:root{--navy:#071a2f;--blue:#0b3b67;--accent:#1976b9;--steel:#607488;--mist:#eef2f5;--line:#d8e0e7;--ink:#102235;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:#fff;margin:0;font-family:Arial,Helvetica,sans-serif}img{width:100%;display:block}a{color:inherit;text-decoration:none}.section{padding:112px max(6vw,24px)}.site-header{z-index:20;background:#fff;border-bottom:1px solid #e8edf1;justify-content:space-between;align-items:center;height:84px;padding:0 max(4vw,24px);display:flex;position:relative}.brand{align-items:center;gap:12px;display:flex}.brand-mark{background:var(--blue);color:#fff;letter-spacing:-2px;clip-path:polygon(0 0,100% 0,86% 100%,0 100%);place-items:center;width:48px;height:42px;font-weight:800;display:grid}.brand>span:last-child{flex-direction:column;display:flex}.brand strong{letter-spacing:.07em;font-size:20px}.brand 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summary{background:var(--navy);cursor:pointer;width:40px;height:40px;padding:11px;list-style:none}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary span{background:#fff;height:2px;margin:4px 0;display:block}.mobile-nav nav{background:#fff;flex-direction:column;width:230px;padding:12px;display:flex;position:absolute;top:72px;right:20px;box-shadow:0 20px 40px #071a2f22}.mobile-nav nav a{border-bottom:1px solid #edf1f4;padding:12px 14px;font-size:14px;font-weight:700}.hero{color:#fff;align-items:center;height:calc(100vh - 84px);min-height:680px;display:flex;position:relative;overflow:hidden}.hero>img{object-fit:cover;height:100%;position:absolute;inset:0}.hero-shade{background:linear-gradient(90deg,#041222ed 0%,#04182bc2 44%,#04182b26 78%),linear-gradient(#0000 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b{font-size:18px}.button-primary{background:var(--accent);color:#fff}.button-primary:hover{background:#2192d7;transform:translateY(-2px)}.button-ghost{color:#fff;border:1px solid #fff6}.button-ghost:hover{background:#ffffff12}.hero-facts{z-index:3;background:#071a2fef;grid-template-columns:repeat(4,1fr);width:min(760px,60vw);display:grid;position:absolute;bottom:0;right:0}.hero-facts div{border-left:1px solid #ffffff1a;padding:21px 24px}.hero-facts strong,.hero-facts span{display:block}.hero-facts strong{font-size:22px}.hero-facts span{color:#9db0c1;text-transform:uppercase;letter-spacing:.08em;margin-top:5px;font-size:10px}.about-section{background:#fff;grid-template-columns:1fr 1.1fr;gap:10vw;display:grid}.section-heading h2,.split-heading h2,.factory-intro h2,.quality-content h2,.documents-band h2,.contact-main h2{letter-spacing:-.04em;color:var(--navy);margin:0;font-size:clamp(40px,4.3vw,66px);line-height:1.05}.about-copy{padding-top:42px}.about-copy 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20px;font-size:10px;line-height:1.5;display:block}.documents-band{background:var(--blue);color:#fff;grid-template-columns:1.2fr 1fr auto;align-items:end;gap:60px;padding:72px max(6vw,24px);display:grid}.documents-band h2{color:#fff;font-size:44px}.documents-band p{color:#bad0df;line-height:1.7}.button-light{color:var(--blue);white-space:nowrap;background:#fff}.contact-section{color:#fff;background:#0a1727;grid-template-columns:1.1fr .9fr;gap:10vw;padding:110px max(6vw,24px);display:grid}.contact-main h2{color:#fff;font-size:clamp(48px,5vw,72px)}.contact-main>p:not(.eyebrow){color:#9eb0c0;max-width:570px;margin:28px 0;line-height:1.8}.contact-section address{border-top:1px solid #ffffff26;font-style:normal}.contact-section address div{border-bottom:1px solid #ffffff26;padding:25px 0}.contact-section address small,.contact-section address strong{display:block}.contact-section address small{color:#6f8ca5;letter-spacing:.16em;margin-bottom:9px;font-size:9px}.contact-section address strong{font-size:14px;font-weight:500;line-height:1.55}footer{color:#7890a4;background:#06111e;border-top:1px solid #ffffff12;justify-content:space-between;align-items:center;gap:30px;padding:34px max(4vw,24px);font-size:11px;display:flex}.footer-brand strong{color:#fff}.footer-brand small{color:#7890a4}@media (max-width:1120px){.desktop-nav{display:none}.mobile-nav{display:block}.hero-facts{grid-template-columns:repeat(4,1fr);width:100%}.about-section,.quality-section,.contact-section{grid-template-columns:1fr}.about-copy{padding-top:0}.product-info{padding:45px}.application-grid{grid-template-columns:1fr 1fr}.factory-gallery{grid-template-columns:1.3fr 1fr}.factory-gallery figure:last-child{grid-column:1/-1;height:420px}.video-block{grid-template-columns:1fr}.documents-band{grid-template-columns:1fr 1fr}.documents-band .button{grid-column:1/-1;width:max-content}.quality-visual>div{right:20px}}@media (max-width:700px){.section{padding:78px 22px}.site-header{height:72px;padding:0 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22px;display:block}.documents-band>p{margin:24px 0}.contact-section{padding:78px 22px}footer{text-align:center;flex-direction:column}.footer-brand small{display:block}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}.brand-logo{object-fit:contain;flex:none;width:52px;height:52px}.footer-brand .brand-logo{background:#fff;border-radius:4px;padding:3px}.contact-section address a{color:#fff;text-underline-offset:5px;text-decoration-color:#4ca6df;transition:color .2s}.contact-section address a:hover{color:#8fc9ee;text-decoration:underline}.lang-zh{font-family:Microsoft YaHei,PingFang SC,Noto Sans CJK SC,Arial,sans-serif}.lang-zh .eyebrow{letter-spacing:.16em}.lang-zh .hero h1,.lang-zh .section-heading h2,.lang-zh .split-heading h2,.lang-zh .factory-intro h2,.lang-zh .quality-content h2,.lang-zh .documents-band h2,.lang-zh .contact-main h2{letter-spacing:-.025em}.lang-zh .application-grid p,.lang-zh .about-copy p,.lang-zh 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