:root{--bg: #ffffff;--text: #172033;--muted: #5f6b7a;--line: #e5e9f0;--primary: #0b4f9c;--primary-dark: #08396f;--soft: #f4f7fb;--card: #ffffff;--radius: 18px;--shadow: 0 18px 50px rgba(23, 32, 51, .08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 40px));margin:0 auto}.site-header{border-bottom:1px solid var(--line);background:#ffffffeb;position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.logo{font-weight:800;font-size:1.25rem;color:var(--primary)}nav{display:flex;align-items:center;gap:24px;font-size:.95rem}.nav-menu{position:relative;display:flex;align-items:center;min-height:76px}.nav-menu-trigger{display:inline-flex;align-items:center;gap:6px}.nav-menu-trigger:after{content:"";width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}.nav-submenu{position:absolute;top:calc(100% - 8px);left:50%;z-index:20;min-width:190px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translate(-50%,8px);transition:opacity .18s ease,transform .18s ease}.nav-menu:hover .nav-submenu,.nav-menu:focus-within .nav-submenu{opacity:1;pointer-events:auto;transform:translate(-50%)}.nav-submenu a{display:block;padding:9px 10px;border-radius:8px;color:var(--text);white-space:nowrap}.nav-submenu a:hover,.nav-submenu a:focus{background:var(--soft);color:var(--primary)}.nav-cta{padding:10px 16px;border-radius:999px;background:var(--primary);color:#fff}.hero{padding:80px 0;background:linear-gradient(135deg,#f7fbff,#fff)}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(2.4rem,5vw,4.6rem);line-height:1.08;margin:0 0 20px;letter-spacing:-.04em}.hero-text,.page-hero p{font-size:1.15rem;color:var(--muted);max-width:720px}.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:800;color:var(--primary);margin-bottom:14px}.hero img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4 / 3;object-fit:cover}.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;border:0;padding:13px 20px;border-radius:999px;background:var(--primary);color:#fff;font-weight:700;cursor:pointer}.button:hover{background:var(--primary-dark)}.button.secondary{background:#fff;color:var(--primary);border:1px solid var(--line)}.section{padding:78px 0}.muted{background:var(--soft)}.section h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.15;margin:0 0 20px;letter-spacing:-.03em}.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:36px}.product-card,.info-card,.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.product-card img{width:100%;height:280px;object-fit:cover;background:#f8fafc;padding:12px}.product-card-body{padding:28px}.product-card h3,.info-card h3{margin-top:0;font-size:1.35rem}.product-card p,.info-card p,.contact-card p{color:var(--muted)}.product-card a{color:var(--primary);font-weight:800}.feature-grid,.two-column,.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.features{display:grid;gap:20px}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}.info-card{padding:26px}.page-hero{padding:76px 0;background:linear-gradient(135deg,#eef6ff,#fff);border-bottom:1px solid var(--line)}.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.spec-table th,.spec-table td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.spec-table th{width:38%;background:#f8fafc;color:var(--text)}.spec-table td{color:var(--muted)}.check-list{padding-left:20px;color:var(--muted)}.contact-form{display:grid;gap:18px}.contact-form label{display:grid;gap:8px;font-weight:700}input,select,textarea{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;font:inherit}.contact-card{padding:32px}@media(max-width:820px){nav{display:none}.hero-grid,.product-grid,.feature-grid,.two-column,.contact-grid,.cards-3{grid-template-columns:1fr}.hero,.section{padding:56px 0}}.hero-slider{position:relative;height:680px;overflow:hidden}.hero-slide{position:absolute;inset:0;display:flex;align-items:center;background-size:cover;background-position:center;opacity:0;transition:opacity .8s ease}.hero-slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#081428d1,#08142885,#0814282e)}.hero-slide.active{opacity:1}.hero-slider-indicators{position:absolute;left:50%;bottom:32px;z-index:3;display:flex;align-items:center;gap:10px;transform:translate(-50%)}.hero-slider-dot{width:12px;height:12px;padding:0;border:1px solid rgba(255,255,255,.78);border-radius:50%;background:#ffffff57;cursor:pointer;transition:background .18s ease,transform .18s ease,width .18s ease}.hero-slider-dot.active{width:30px;border-radius:999px;background:#fff}.hero-slider-dot:hover,.hero-slider-dot:focus{background:#fff;outline:none;transform:scale(1.08)}.hero-content{position:relative;color:#fff;max-width:850px}.hero-content h1{font-size:clamp(2.6rem,5vw,5rem);line-height:1.08;margin:0 0 24px;letter-spacing:-.04em}.hero-content p{font-size:1.25rem;color:#ffffffdb;max-width:680px}.eyebrow.light{color:#9dd3ff}.section-lead{max-width:760px;color:var(--muted);font-size:1.08rem}.intro-card{padding:36px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:34px}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:34px}.case-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.case-card img{width:100%;height:230px;object-fit:cover}.case-card-body{padding:26px}.case-card-body p{color:var(--muted)}.cta-section{padding:80px 0;background:#0b315f;color:#fff}.cta-box{display:flex;align-items:center;justify-content:space-between;gap:36px}.cta-box p{color:#ffffffd1;max-width:760px}@media(max-width:960px){.cards-4,.case-grid,.cta-box{grid-template-columns:1fr}.cards-4,.case-grid{display:grid}.cta-box{display:block}.hero-slider{height:560px}}.site-footer{background:#0f172a;color:#fff;padding:64px 0 28px}.footer-main{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(160px,.7fr) minmax(260px,1fr);gap:36px;align-items:start}.footer-logo{display:inline-block;font-size:1.45rem;font-weight:800;color:#fff;margin-bottom:16px}.footer-brand p,.footer-column a,.footer-contact p,.footer-bottom p{color:#cbd5e1}.footer-brand p{margin:0 0 14px;line-height:1.8}.footer-slogan{color:#93c5fd!important;font-weight:700}.footer-column h4,.footer-contact h4{margin:0 0 16px;font-size:1rem;color:#fff}.footer-column a{display:block;margin-bottom:10px;font-size:.95rem}.footer-column a:hover,.footer-logo:hover{color:#93c5fd}.footer-contact p{margin:0 0 10px;font-size:.95rem}.wechat-box{margin-top:14px;display:inline-flex;flex-direction:column;gap:8px}.wechat-box img{width:118px;height:118px;object-fit:cover;border-radius:12px;background:#fff;padding:6px}.wechat-box span{color:#cbd5e1;font-size:.85rem}.footer-bottom{margin-top:42px;padding-top:22px;border-top:1px solid rgba(203,213,225,.18);display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footer-bottom p{margin:0;font-size:.9rem}@media(max-width:1100px){.footer-main{grid-template-columns:minmax(0,1.3fr) minmax(150px,.7fr) minmax(240px,1fr)}}@media(max-width:760px){.site-footer{padding:48px 0 24px}.footer-main{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom p+p{margin-top:8px}}