:root{--vt-c-white: #ffffff;--vt-c-white-soft: #f8f8f8;--vt-c-white-mute: #f2f2f2;--vt-c-black: #181818;--vt-c-black-soft: #222222;--vt-c-black-mute: #282828;--vt-c-indigo: #2c3e50;--vt-c-divider-light-1: rgba(60, 60, 60, .29);--vt-c-divider-light-2: rgba(60, 60, 60, .12);--vt-c-divider-dark-1: rgba(84, 84, 84, .65);--vt-c-divider-dark-2: rgba(84, 84, 84, .48);--vt-c-text-light-1: var(--vt-c-indigo);--vt-c-text-light-2: rgba(60, 60, 60, .66);--vt-c-text-dark-1: var(--vt-c-white);--vt-c-text-dark-2: rgba(235, 235, 235, .64)}:root{--color-background: var(--vt-c-white);--color-background-soft: var(--vt-c-white-soft);--color-background-mute: var(--vt-c-white-mute);--color-border: var(--vt-c-divider-light-2);--color-border-hover: var(--vt-c-divider-light-1);--color-heading: var(--vt-c-text-light-1);--color-text: var(--vt-c-text-light-1);--section-gap: 160px}@media(prefers-color-scheme:dark){:root{--color-background: var(--vt-c-black);--color-background-soft: var(--vt-c-black-soft);--color-background-mute: var(--vt-c-black-mute);--color-border: var(--vt-c-divider-dark-2);--color-border-hover: var(--vt-c-divider-dark-1);--color-heading: var(--vt-c-text-dark-1);--color-text: var(--vt-c-text-dark-2)}}*,*:before,*:after{box-sizing:border-box;margin:0;font-weight:400}strong,b{font-weight:700}body{min-height:100vh;color:var(--color-text);background:var(--color-background);transition:color .5s,background-color .5s;line-height:1.6;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:15px;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:root{--z-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;--ht-primary: #144252;--ht-primary-mid: #1a5f6f;--ht-primary-dark: #0f3540;--ht-accent: #0f81f8;--ht-accent-hover: #0c6ed4;--ht-text: #1e293b;--ht-muted: #64748b;--ht-body: #475569;--ht-bg: #ffffff;--ht-bg-soft: #f1f5f9;--ht-footer-bg: #0f172a;--ht-footer-fg: #cbd5e1;--ht-link: var(--ht-accent);--z-primary: var(--ht-primary-mid);--z-primary-dark: var(--ht-primary-dark);--z-text: var(--ht-text);--z-muted: var(--ht-muted);--z-body: var(--ht-body);--z-bg: var(--ht-bg);--z-bg-soft: var(--ht-bg-soft);--z-footer-bg: var(--ht-footer-bg);--z-footer-fg: var(--ht-footer-fg);--z-border-soft: rgba(20, 66, 82, .12);--z-border-mid: rgba(20, 66, 82, .2);--z-radius-lg: 22px;--z-radius-md: 16px;--z-radius-sm: 12px;--z-shadow-sm: 0 12px 40px rgba(15, 23, 42, .06);--z-shadow-md: 0 20px 50px rgba(15, 23, 42, .1)}body{font-family:var(--z-font);color:var(--ht-body)}a{color:inherit}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}#app{max-width:none;margin:0;padding:0;font-weight:400}a,.green{text-decoration:none;color:var(--ht-accent, #0f81f8);transition:color .2s ease,background-color .2s ease;padding:3px}@media(hover:hover){a:hover{color:var(--ht-accent-hover, #0c6ed4);background-color:transparent}}@media(min-width:1024px){body{display:block;place-items:unset}#app{display:block;grid-template-columns:unset;padding:0;margin:0;max-width:none}}:root{--primary: #0f81f8;--primary-dark: #0a6ad4;--primary-light: #e8f3fe;--dark: #0a1628;--text-1: #1a1a1a;--text-2: #606266;--text-3: #909399;--border: #ebeef5;--bg: #f5f7fa;--white: #ffffff;--radius: 8px;--shadow: 0 2px 12px rgba(0, 0, 0, .06);--shadow-hover: 0 8px 24px rgba(15, 129, 248, .12);--container: 1280px}.rd-icon{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:-.15em}.rd-topbar{background:var(--dark);height:40px;color:#ffffffb3;font-size:13px}.rd-topbar__inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between}.rd-topbar__left,.rd-topbar__right{display:flex;align-items:center;gap:20px}.rd-topbar__left span{display:inline-flex;align-items:center;gap:6px}.rd-topbar a{color:#ffffffb3;transition:color .2s}.rd-topbar a:hover{color:#fff}.rd-topbar .rd-topbar__divider{width:1px;height:14px;background:#ffffff26}.rd-header{background:#fff;height:80px;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px #0000000f}.rd-header__inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.rd-header__brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.rd-header__brand img{width:44px;height:44px;object-fit:contain}.rd-header__brand-text{font-size:26px;font-weight:800;color:var(--primary);letter-spacing:1px;white-space:nowrap}.rd-header__nav{display:flex;gap:0;align-self:stretch}.rd-header__nav-item{position:relative}.rd-header__link{display:flex;align-items:center;font-size:16px;color:var(--text-1);position:relative;padding:0 20px;height:80px;font-weight:500;transition:color .25s;white-space:nowrap}.rd-header__link:after{content:"";position:absolute;bottom:0;left:50%;width:0;height:3px;background:var(--primary);transition:all .25s;transform:translate(-50%);border-radius:2px}.rd-header__link:hover,.rd-header__link--active{color:var(--primary)}.rd-header__link:hover:after,.rd-header__link--active:after{width:40px}.rd-header__dropdown{position:absolute;top:80px;left:0;min-width:180px;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:8px 0;z-index:120}.rd-header__dropdown-link{display:block;padding:10px 20px;font-size:14px;color:var(--text-1);transition:all .2s}.rd-header__dropdown-link:hover{color:var(--primary);background:var(--primary-light)}.rd-header__tools{display:flex;align-items:center;gap:14px;flex-shrink:0}.rd-cta-btn{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#0f81f8,#0a6ad4);color:#fff;padding:10px 28px;border-radius:30px;font-size:14px;font-weight:500;box-shadow:0 4px 12px #0f81f84d;transition:all .25s}.rd-cta-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px #0f81f866;color:#fff}.rd-en-btn{border:1px solid var(--border);background:#fff;padding:8px 16px;border-radius:20px;font-size:13px;color:var(--text-2);cursor:pointer;transition:all .2s}.rd-en-btn:hover{border-color:var(--primary);color:var(--primary)}.rd-banner{background:var(--bg);padding:56px 0;position:relative;overflow:hidden}.rd-banner__inner{max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:2}.rd-banner h1{font-size:36px;font-weight:700;color:var(--primary);letter-spacing:2px}.rd-breadcrumb{font-size:14px;color:var(--text-3);margin-top:10px;display:flex;flex-wrap:wrap;align-items:center}.rd-breadcrumb a{color:var(--text-3)}.rd-breadcrumb a:hover{color:var(--primary)}.rd-breadcrumb .sep{margin:0 8px;color:#c0c4cc}.rd-breadcrumb .current{color:var(--text-3)}.rd-banner__deco{position:absolute;right:-50px;top:50%;transform:translateY(-50%);width:500px;opacity:.5;pointer-events:none}.rd-section{padding:60px 0}.rd-section--white{background:#fff}.rd-section--gray{background:var(--bg)}.rd-section-title{text-align:center;margin-bottom:48px}.rd-section-title h2{font-size:30px;font-weight:700;position:relative;display:inline-block;color:var(--text-1)}.rd-section-title h2:after{content:"";display:block;width:40px;height:3px;background:var(--primary);margin:12px auto 0;border-radius:2px}.rd-section-title p{color:var(--text-3);font-size:15px;margin-top:12px}.rd-btn{display:inline-block;padding:10px 28px;border-radius:4px;font-size:15px;cursor:pointer;border:none;transition:all .2s}.rd-btn--primary{background:var(--primary);color:#fff}.rd-btn--primary:hover{background:var(--primary-dark);color:#fff}.rd-btn--outline{background:#fff;color:var(--primary);border:1px solid var(--primary)}.rd-btn--outline:hover{background:var(--primary-light)}.rd-hover-card{transition:all .3s 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button.rd-active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background:var(--primary)}.rd-pagination{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}.rd-pagination a,.rd-pagination span{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:4px;font-size:14px;color:var(--text-2);transition:all .2s}.rd-pagination a:hover{border-color:var(--primary);color:var(--primary)}.rd-pagination .rd-current{background:var(--primary);color:#fff;border-color:var(--primary)}.rd-about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.rd-about-text h2{font-size:30px;font-weight:700;margin-bottom:8px;color:var(--text-1)}.rd-about-text .rd-bar{width:50px;height:3px;background:var(--primary);margin-bottom:24px}.rd-about-text p{color:var(--text-2);margin-bottom:16px;font-size:15px;line-height:1.8}.rd-about-features{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}.rd-about-features li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}.rd-about-features li:before{content:"";width:18px;height:18px;border-radius:50%;background:var(--primary);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");background-size:12px;background-repeat:no-repeat;background-position:center;flex-shrink:0}.rd-about-img{height:320px;background:linear-gradient(135deg,#e8f3fe,#d0e8fd);border-radius:var(--radius);overflow:hidden}.rd-about-img img{width:100%;height:100%;object-fit:cover}.rd-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:48px 0}.rd-stat-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px;text-align:center}.rd-stat-card .rd-num{font-size:36px;font-weight:700;color:var(--primary)}.rd-stat-card .rd-label{font-size:14px;color:var(--text-3);margin-top:8px}.rd-timeline{position:relative;padding:20px 0}.rd-timeline:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--border);transform:translate(-50%)}.rd-timeline-item{display:flex;margin-bottom:32px;position:relative}.rd-timeline-item:nth-child(odd){flex-direction:row}.rd-timeline-item:nth-child(2n){flex-direction:row-reverse}.rd-tl-content{width:45%;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px}.rd-timeline-item:nth-child(odd) .rd-tl-content{margin-right:auto;text-align:right}.rd-timeline-item:nth-child(2n) .rd-tl-content{margin-left:auto}.rd-tl-dot{position:absolute;left:50%;top:24px;width:14px;height:14px;background:var(--primary);border:3px solid #fff;border-radius:50%;transform:translate(-50%);box-shadow:0 0 0 2px var(--primary)}.rd-tl-year{font-size:20px;font-weight:700;color:var(--primary)}.rd-tl-desc{font-size:14px;color:var(--text-2);margin-top:8px}.rd-product-detail{display:grid;grid-template-columns:1fr 1fr;gap:48px}.rd-gallery-main{width:100%;height:400px;background:#fafbfc;border:1px solid var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.rd-gallery-main img{max-width:100%;max-height:100%;object-fit:contain}.rd-gallery-thumbs{display:flex;gap:12px;margin-top:12px}.rd-gallery-thumb{width:80px;height:80px;background:#fafbfc;border:1px solid var(--border);border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden}.rd-gallery-thumb img{max-width:100%;max-height:100%;object-fit:contain}.rd-gallery-thumb.rd-active{border-color:var(--primary)}.rd-product-detail-info h2{font-size:24px;font-weight:700;margin-bottom:12px;color:var(--text-1)}.rd-product-detail-info 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h1{font-size:28px;font-weight:700;line-height:1.5;margin-bottom:16px;color:var(--text-1)}.rd-article-meta{font-size:14px;color:var(--text-3);display:flex;justify-content:center;gap:24px;flex-wrap:wrap}.rd-article-meta span{display:inline-flex;align-items:center;gap:5px}.rd-article-body{font-size:16px;line-height:1.9;color:#333}.rd-article-body p{margin-bottom:20px}.rd-article-body img{margin:24px auto;border-radius:var(--radius);max-width:100%}.rd-article-tags{margin:32px 0;display:flex;gap:8px;flex-wrap:wrap}.rd-article-tags span{background:var(--primary-light);color:var(--primary);padding:4px 14px;border-radius:4px;font-size:13px}.rd-article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0}.rd-nav-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;font-size:14px;display:block;color:inherit;transition:all .2s}.rd-nav-card .rd-label{color:var(--text-3);margin-bottom:6px}.rd-nav-card:hover{color:var(--primary);border-color:var(--primary)}.rd-contact-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:40px}.rd-contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center}.rd-icon-circle{width:56px;height:56px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px}.rd-contact-card h4{font-size:16px;margin-bottom:8px;color:var(--text-1)}.rd-contact-card p{font-size:14px;color:var(--text-2);line-height:1.7;word-break:break-all}.rd-contact-main{display:grid;grid-template-columns:1.2fr 1fr;gap:24px}.rd-map-wrap{border-radius:var(--radius);overflow:hidden;min-height:420px}.rd-contact-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px}.rd-contact-form h3{font-size:20px;margin-bottom:24px;color:var(--text-1)}.rd-form-group{margin-bottom:18px}.rd-form-group label{display:block;font-size:14px;color:var(--text-2);margin-bottom:6px}.rd-form-group input,.rd-form-group textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:4px;font-size:14px;font-family:inherit;transition:border-color .2s;box-sizing:border-box}.rd-form-group input:focus,.rd-form-group textarea:focus{outline:none;border-color:var(--primary)}.rd-form-group textarea{height:100px;resize:vertical}.rd-download-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:16px;flex-wrap:wrap}.rd-search-box{display:flex}.rd-search-box input{width:280px;padding:10px 14px;border:1px solid var(--border);border-radius:4px 0 0 4px;font-size:14px;outline:none;box-sizing:border-box}.rd-search-box input:focus{border-color:var(--primary)}.rd-search-box button{background:var(--primary);color:#fff;border:none;padding:0 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