:root{--color-primary: #11497b;--color-primary-hover: #0d3a63;--color-primary-soft: #e8f2fb;--color-info: #1a6db5;--color-success: #2f9e44;--color-warning: #f08c00;--color-error: #c92a2a;--color-bg-layout: #f6f8fb;--color-bg-container: #ffffff;--color-text: #172033;--color-text-secondary: #667085;--color-text-muted: #98a2b3;--color-text-light: #ffffff;--color-border: #d9e2ec;--color-border-subtle: #edf2f7;--font-family-base: Inter, "Noto Sans SC", system-ui, sans-serif;--font-family-display: "Noto Sans SC", Inter, system-ui, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-md: 1.125rem;--font-size-lg: 1.5rem;--font-size-xl: 2rem;--font-size-xxl: 2.5rem;--line-height-base: 1.6;--line-height-tight: 1.25;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4.5rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);--shadow-md: 0 8px 24px rgba(15, 23, 42, .08);--shadow-lg: 0 16px 44px rgba(7, 29, 49, .18);--container-max: 1200px;--container-padding: 1.5rem;--header-height: 80px;--z-index-header: 100;--z-index-overlay: 1000;--color-primary-dark: var(--color-primary-hover);--color-primary-light: var(--color-info);--color-accent: #f5a623;--color-accent-light: #ffc84d;--color-dark-blue: #0a2d4d;--color-midtone: #4a7ba7;--color-light: var(--color-primary-soft);--color-subtle: var(--color-bg-layout);--color-yellow: #fff8e7;--lang: "zh";--bg-white: var(--color-bg-container);--bg-light: var(--color-bg-layout);--bg-dark: var(--color-primary);--font-family: var(--font-family-base);--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--space-xxl: 4rem;--transition-fast: .2s ease;--transition-base: .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-base);color:var(--color-text);background-color:var(--bg-white);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}img{max-width:100%;height:auto;display:block}button{font-family:inherit;cursor:pointer;border:none;background:none}.skip-links{position:absolute;top:-100%;left:0;z-index:9999}.skip-links a{display:block;padding:var(--space-sm) var(--space-md);background:var(--color-primary);color:var(--color-text-light);font-weight:500}.skip-links a:focus{top:0;position:fixed}.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);background:#0a2d4de6;box-shadow:0 8px 24px #04121e2e;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:background var(--transition-base),box-shadow var(--transition-base)}.header--solid,.header.scrolled{background:var(--bg-white);box-shadow:var(--shadow-sm)}.header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding);height:100%}.header__logo{flex:0 1 auto;min-width:0}.header__logo a{display:flex;flex-direction:column;min-width:0}.header .logo-text{color:var(--color-text-light)}.header .logo-sub{color:#ffffff94}.logo-text{font-size:clamp(.95rem,1.3vw,1.25rem);font-weight:700;color:var(--color-primary);letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:clamp(8rem,22vw,28rem)}.logo-sub{font-size:.625rem;color:var(--color-text-muted);letter-spacing:.15em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:clamp(8rem,22vw,28rem)}.header--solid .logo-text,.header.scrolled .logo-text{color:var(--color-primary)}.header--solid .logo-sub,.header.scrolled .logo-sub{color:var(--color-text-muted)}.header__nav{display:flex;align-items:center;gap:clamp(.5rem,1.5vw,var(--space-lg));flex-wrap:nowrap;flex:0 0 auto;min-width:0}.nav-list{display:flex;list-style:none;gap:clamp(.6rem,1.6vw,var(--space-xl));align-items:center;flex-wrap:nowrap}.nav-link{font-size:var(--font-size-base);font-weight:500;color:var(--color-text-light);padding:var(--space-xs) 0;position:relative;white-space:nowrap}.header--solid .nav-link,.header.scrolled .nav-link{color:var(--color-text)}.nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--color-accent);transition:width var(--transition-base)}.nav-link:hover:after,.nav-link--active:after{width:100%}.nav-link--active{color:var(--color-primary)}.header__mobile-toggle{display:none;width:40px;height:40px;position:relative}.hamburger,.hamburger:before,.hamburger:after{display:block;width:24px;height:2px;background:var(--color-text-light);position:absolute;left:50%;transform:translate(-50%);transition:all var(--transition-fast)}.header--solid .hamburger,.header--solid .hamburger:before,.header--solid .hamburger:after,.header.scrolled .hamburger,.header.scrolled .hamburger:before,.header.scrolled .hamburger:after{background:var(--color-text)}.hamburger{top:50%;transform:translate(-50%,-50%)}.hamburger:before,.hamburger:after{content:""}.hamburger:before{top:-7px}.hamburger:after{top:7px}.mobile-menu{display:none;position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:var(--bg-white);z-index:999;padding:var(--space-lg);transform:translate(100%);transition:transform var(--transition-base)}.mobile-menu.active{transform:translate(0)}.mobile-nav-list{list-style:none}.mobile-nav-list li{border-bottom:1px solid var(--color-light)}.mobile-nav-list a{display:block;padding:var(--space-md) 0;font-size:var(--font-size-md);font-weight:500;color:var(--color-text)}.hero{position:relative;min-height:calc(100vh - var(--header-height));min-height:calc(100dvh - var(--header-height));height:calc(100vh - var(--header-height));height:calc(100dvh - var(--header-height));margin-top:var(--header-height);padding:0;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero__media{position:absolute;inset:0;z-index:0;background:linear-gradient(135deg,#11497bd9,#1a6db5a6);overflow:hidden}.hero__carousel{position:absolute;inset:0}.hero__slide{position:absolute;inset:0;will-change:transform,opacity;background-size:cover;background-position:center}.hero__slide.is-active{opacity:1}.hero__slide:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#08203626,#0820364d)}.hero__slide--placeholder{display:flex;align-items:flex-end;justify-content:flex-start;padding:2rem}.hero__slide-content{position:relative;z-index:1;max-width:18rem;color:#ffffffeb}.hero__slide-kicker{display:inline-flex;margin-bottom:.75rem;padding:.35rem .75rem;border:1px solid rgba(255,255,255,.45);border-radius:999px;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}.hero__slide-title{margin:0;font-size:clamp(1.5rem,2.6vw,2.4rem);line-height:1.1;text-shadow:0 10px 30px rgba(0,0,0,.18)}.hero__slide-copy{margin-top:.6rem;font-size:.95rem;line-height:1.5;color:#ffffffc7}.hero__media--fallback .hero__carousel{background:linear-gradient(135deg,#7ea7cf,#a6c7e5 45%,#6f8ea9)}.hero__carousel-dots{position:absolute;left:50%;bottom:2rem;z-index:2;display:flex;gap:.65rem;transform:translate(-50%)}.hero__carousel-dot{width:.7rem;height:.7rem;border-radius:999px;border:1px solid rgba(255,255,255,.85);background:#fff3;transition:background var(--transition-fast),transform var(--transition-fast)}.hero__carousel-dot.is-active{background:var(--color-accent);border-color:var(--color-accent);transform:scale(1.1)}.hero__image{width:100%;height:100%;background-size:cover;background-position:center}.hero__overlay{position:absolute;inset:0;background:linear-gradient(135deg,#11497b8c,#1a6db573,#0a2d4d99)}.hero__particles{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}.hero__particle{position:absolute;width:4px;height:4px;background:#ffffff4d;border-radius:50%;animation:particle-float 15s infinite}@keyframes particle-float{0%,to{transform:translateY(100vh) rotate(0);opacity:0}10%{opacity:1}90%{opacity:1}to{transform:translateY(-10vh) rotate(720deg);opacity:0}}.hero__content{position:relative;z-index:2;text-align:center;color:var(--color-text-light);padding:0 var(--container-padding);max-width:min(960px,92vw);width:100%}.hero__brand{margin-bottom:var(--space-lg)}.hero__brand-name{font-size:clamp(1.5rem,4.2vw,3.4rem);font-weight:800;letter-spacing:.05em;text-shadow:0 2px 20px rgba(0,0,0,.3);margin-bottom:var(--space-xs);line-height:1.15;overflow-wrap:break-word;word-break:normal;background:linear-gradient(135deg,#fff,#e8f1f8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero__brand-sub{font-size:clamp(.85rem,1.6vw,1.35rem);font-weight:300;letter-spacing:.25em;opacity:.9;text-transform:uppercase;overflow-wrap:break-word}.hero__title{font-size:clamp(1.6rem,4vw,3rem);font-weight:700;margin-bottom:var(--space-md);line-height:1.2;overflow-wrap:break-word}.hero__subtitle{font-size:clamp(1rem,2vw,1.25rem);font-weight:300;margin-bottom:var(--space-xl);opacity:.9}.product-search{width:min(100%,34rem);margin:0 auto}.product-search--compact{background:#ffffff29;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:.55rem;box-shadow:0 16px 44px #071d312e}.product-search__compact-input{width:100%;padding:1rem 1.35rem;border:none;border-radius:999px;background:#ffffffeb;color:var(--color-text);font-size:var(--font-size-base);box-shadow:inset 0 1px #fff9}.product-search__compact-input:focus{outline:2px solid rgba(245,166,35,.45);outline-offset:2px}.selection-panel{padding:var(--space-xl) 0 0}.selection-panel[hidden]{display:none}.selection-panel__card{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:var(--space-xl);text-align:left;color:var(--color-text);box-shadow:var(--shadow-lg)}.selection-panel__header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-md);margin-bottom:var(--space-lg)}.selection-panel__close{padding:.7rem 1rem;border:1px solid rgba(17,73,123,.16);border-radius:999px;background:var(--color-bg-container);color:var(--color-primary);font-weight:600}.product-search__title{font-size:var(--font-size-lg);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-xs)}.product-search__desc{color:var(--color-text-secondary);font-size:var(--font-size-sm);margin:0}.search-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-md);margin-bottom:var(--space-lg)}.search-field{display:flex;flex-direction:column}.search-field label{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.search-field select{padding:.75rem 1rem;border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--font-size-base);font-family:inherit;background:var(--bg-white);color:var(--color-text);cursor:pointer;transition:border-color var(--transition-fast)}.search-field select:focus{outline:none;border-color:var(--color-primary)}.search-actions{display:flex;gap:var(--space-md);justify-content:center}.search-results{margin-top:var(--space-xl);padding-top:var(--space-xl);border-top:1px solid var(--color-border-subtle)}.results-title{font-size:var(--font-size-lg);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-lg);text-align:center}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-md)}.result-card{background:var(--bg-white);border:1px solid var(--color-border-subtle);border-radius:var(--radius-md);padding:var(--space-lg);text-align:center;transition:box-shadow var(--transition-fast)}.result-card:hover{box-shadow:var(--shadow-md)}.result-card__name{font-size:var(--font-size-md);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-xs)}.result-card__type{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-sm)}.result-card__specs{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.8}.result-card__desc{margin-top:var(--space-sm);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;font-size:var(--font-size-base);font-weight:500;border-radius:var(--radius-sm);transition:all var(--transition-fast);cursor:pointer;border:2px solid transparent}.btn--primary{background:var(--color-primary);color:var(--color-text-light);border-color:var(--color-primary)}.btn--primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark)}.btn--ghost{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn--ghost:hover{background:var(--color-primary);color:var(--color-text-light)}.btn--large{padding:1rem 2rem;font-size:var(--font-size-md)}.section{padding:var(--space-xxl) 0}.section--theme-light{background:var(--bg-light)}.section--theme-yellow{background:var(--color-yellow)}.section__header{margin-bottom:var(--space-xl)}.section__header--centered{text-align:center;max-width:700px;margin-left:auto;margin-right:auto}.section__title{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-md);line-height:1.3}.section__desc{font-size:var(--font-size-md);color:var(--color-text-secondary);line-height:1.6}.product-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}.product-card{background:var(--bg-white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.product-card__image{aspect-ratio:4/3;overflow:hidden}.placeholder-img{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--color-text-light);font-size:1.5rem;font-weight:700}.product-card__meta{padding:var(--space-md)}.product-card__tag{display:inline-block;font-size:.75rem;font-weight:500;color:var(--color-primary);background:var(--color-light);padding:.25rem .75rem;border-radius:20px;margin-bottom:var(--space-sm)}.product-card__title{font-size:var(--font-size-md);font-weight:700;color:var(--color-text);margin-bottom:var(--space-xs)}.product-card__desc{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.5}.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xxl);align-items:center}.split-layout--reverse{direction:rtl}.split-layout--reverse>*{direction:ltr}.split-layout__content p{margin-bottom:var(--space-md);color:var(--color-text-secondary);line-height:1.7}.split-layout__content .btn{margin-top:var(--space-md)}.split-layout__image,.about-image{width:100%;aspect-ratio:16/10;background-size:cover;background-position:center;border-radius:var(--radius-md)}.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg)}.support-card{background:var(--bg-white);padding:var(--space-xl);border-radius:var(--radius-md);text-align:center;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.support-card__icon{width:60px;height:60px;margin:0 auto var(--space-md);color:var(--color-primary)}.support-card__icon svg{width:100%;height:100%}.support-card h3{font-size:var(--font-size-md);font-weight:700;color:var(--color-text);margin-bottom:var(--space-sm)}.support-card p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.6}.page-hero{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-dark-blue) 100%);padding:calc(var(--header-height) + var(--space-xxl)) 0 var(--space-xxl);text-align:center;color:var(--color-text-light)}.page-hero__title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;margin-bottom:var(--space-md)}.page-hero__desc{font-size:var(--font-size-md);opacity:.9;max-width:600px;margin:0 auto}.product-detail-grid{display:flex;flex-direction:column;gap:var(--space-xxl)}.product-detail-card{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xl);background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}.product-detail-card--reverse{direction:rtl}.product-detail-card--reverse>*{direction:ltr}.product-detail-card__image{min-height:300px}.placeholder-img--large{height:100%;min-height:300px;font-size:2rem}.product-detail-card__content{padding:var(--space-xl)}.product-detail-card__tag{display:inline-block;font-size:.75rem;font-weight:500;color:var(--color-primary);background:var(--color-light);padding:.25rem .75rem;border-radius:20px;margin-bottom:var(--space-sm)}.product-detail-card__title{font-size:var(--font-size-xl);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-md)}.product-detail-card__desc{color:var(--color-text-secondary);line-height:1.7;margin-bottom:var(--space-lg)}.product-detail-card__specs,.product-detail-card__applications{margin-bottom:var(--space-md)}.product-detail-card__specs h4,.product-detail-card__applications h4{font-size:var(--font-size-base);font-weight:700;color:var(--color-text);margin-bottom:var(--space-sm)}.product-detail-card__specs ul{list-style:none;padding:0}.product-detail-card__specs li{padding:.25rem 0;color:var(--color-text-secondary);font-size:var(--font-size-sm)}.product-detail-card__applications p{color:var(--color-text-secondary);font-size:var(--font-size-sm)}.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}.service-card{background:var(--bg-white);padding:var(--space-xl);border-radius:var(--radius-md);text-align:center;box-shadow:var(--shadow-sm)}.service-card__icon{width:50px;height:50px;margin:0 auto var(--space-md);color:var(--color-primary)}.service-card__icon svg{width:100%;height:100%}.service-card h3{font-size:var(--font-size-md);font-weight:700;margin-bottom:var(--space-sm)}.service-card p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.6}.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-lg)}.value-card{background:var(--bg-white);padding:var(--space-xl);border-radius:var(--radius-md);text-align:center;box-shadow:var(--shadow-sm)}.value-card__icon{width:50px;height:50px;margin:0 auto var(--space-md);color:var(--color-primary)}.value-card__icon svg{width:100%;height:100%}.value-card h3{font-size:var(--font-size-md);font-weight:700;margin-bottom:var(--space-sm)}.value-card p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.6}.strength-list{display:flex;flex-direction:column;gap:var(--space-lg)}.strength-item h4{font-size:var(--font-size-md);font-weight:700;color:var(--color-primary);margin-bottom:var(--space-xs)}.strength-item p{color:var(--color-text-secondary);line-height:1.6}.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xxl)}.contact-desc{color:var(--color-text-secondary);margin-bottom:var(--space-lg)}.contact-details{display:flex;flex-direction:column;gap:var(--space-lg)}.contact-item{display:flex;gap:var(--space-md)}.contact-item__icon{width:40px;height:40px;flex-shrink:0;color:var(--color-primary)}.contact-item__icon svg{width:100%;height:100%}.contact-item__content h4{font-size:var(--font-size-base);font-weight:700;color:var(--color-text);margin-bottom:var(--space-xs)}.contact-item__content p{color:var(--color-text-secondary);font-size:var(--font-size-sm);line-height:1.6}.contact-form-wrapper{background:var(--bg-light);padding:var(--space-xl);border-radius:var(--radius-lg)}.contact-form{display:flex;flex-direction:column;gap:var(--space-md)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}.form-field{display:flex;flex-direction:column}.form-field 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var(--space-sm)}.map-note{font-size:var(--font-size-sm);margin-top:var(--space-sm)}.footer{background:var(--color-dark-blue);color:var(--color-text-light);padding:var(--space-xxl) 0 var(--space-lg)}.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--space-xl);margin-bottom:var(--space-xl)}.footer__logo .logo-text{color:var(--color-text-light)}.footer__logo .logo-sub{color:#fff9}.footer__tagline{margin-top:var(--space-sm);color:#ffffffb3;font-size:var(--font-size-sm)}.footer__nav h4,.footer__contact h4{font-size:var(--font-size-base);font-weight:700;margin-bottom:var(--space-md)}.footer__nav ul,.footer__contact ul{list-style:none}.footer__nav li,.footer__contact li{margin-bottom:var(--space-xs)}.footer__nav a,.footer__contact li{color:#ffffffb3;font-size:var(--font-size-sm);transition:color var(--transition-fast)}.footer__nav a:hover{color:var(--color-text-light)}.footer__bottom{padding-top:var(--space-lg);border-top:1px solid 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