*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:#1b2a3a;background:#fff;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:34px;padding:18px 6vw;background:rgba(255,255,255,.98);border-bottom:1px solid #dbe7f3;box-shadow:0 10px 28px rgba(15,38,71,.08);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;min-width:220px}
.brand img{width:220px;max-height:64px;object-fit:contain}
.top nav{display:flex;gap:8px;flex:1;flex-wrap:wrap;align-items:center}
.top nav a{position:relative;display:inline-flex;align-items:center;min-height:42px;padding:8px 13px;border-radius:8px;font-size:17px;font-weight:700;color:#24364a;letter-spacing:0;transition:background .18s ease,color .18s ease,box-shadow .18s ease}
.top nav a:hover{background:#eef6ff;color:#0a5fb4;box-shadow:inset 0 -2px 0 #0a5fb4}
.phone{padding:10px 18px;border-radius:9px;background:#0a5fb4;color:#fff;font-weight:800;font-size:15px;box-shadow:0 10px 22px rgba(10,95,180,.24)}
.hero{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(300px,.82fr);gap:42px;align-items:center;padding:86px 6vw;background:radial-gradient(circle at 15% 20%,#d9ebff 0,#f4f9ff 30%,transparent 54%),linear-gradient(135deg,#f7fbff,#fff)}
.hero h1{font-size:46px;line-height:1.15;margin:10px 0 18px;letter-spacing:0;color:#0d1b2a}
.hero p{font-size:18px;color:#526275;max-width:760px}
.eyebrow{color:#0a5fb4;font-weight:800}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:11px 20px;border-radius:8px;background:#0a5fb4;color:#fff;font-weight:800;border:1px solid #0a5fb4;box-shadow:0 10px 20px rgba(10,95,180,.18);transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn:hover{background:#084e96;border-color:#084e96;transform:translateY(-1px);box-shadow:0 14px 26px rgba(10,95,180,.24)}
.btn-light{background:#fff;color:#0a5fb4;border-color:#9fc7ee;box-shadow:0 10px 20px rgba(9,45,89,.08)}
.btn-light:hover{background:#f2f8ff;border-color:#0a5fb4;color:#073f7a}
.hero-panel,.side,.content,.qr{border:1px solid #e1eaf4;border-radius:10px;background:#fff;padding:24px;box-shadow:0 18px 45px rgba(16,40,72,.06)}
.hero-panel strong,.hero-panel span{display:block;margin:10px 0}
.hero-panel span{padding:13px 14px;border-radius:8px;background:#f3f7fb;color:#2f4155}
main section{padding:46px 6vw}
h1,h2,h3{line-height:1.3;color:#101828}
h2{font-size:30px;margin:0 0 20px}
.lead{color:#5d6b7c}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 20px;margin-bottom:34px}
.card{display:flex;flex-direction:column;gap:8px;border:1px solid #e3eaf2;border-radius:8px;overflow:hidden;background:#fff;min-height:100%;box-shadow:0 10px 26px rgba(16,40,72,.045);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);border-color:#b8d3ee;box-shadow:0 18px 34px rgba(16,40,72,.09)}
.card img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f7f9fc;padding:18px}
.card span,.card strong,.card p{margin-left:15px;margin-right:15px}
.card span{margin-top:12px;color:#0a5fb4;font-size:13px;font-weight:700}
.card strong{font-size:17px;line-height:1.45;color:#132337;min-height:2.9em}
.card p{color:#5b6878;font-size:15px;line-height:1.7;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.product-group{padding-top:34px;scroll-margin-top:104px}
.product-group>h2{font-size:30px;margin:0 0 24px;padding-bottom:12px;border-bottom:2px solid #dceaf8}
.product-group>h3{font-size:21px;margin:28px 0 16px;color:#18344f}
.cat-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.cat-card{padding:20px;border:1px solid #e3eaf2;border-radius:10px;background:linear-gradient(180deg,#fff,#f8fbff);box-shadow:0 8px 20px rgba(16,40,72,.04);transition:border-color .18s ease,transform .18s ease}
.cat-card:hover{transform:translateY(-2px);border-color:#b8d3ee}
.cat-card strong,.cat-card span{display:block}
.cat-card span{color:#5b6878}
.page-title{background:#f4f8fc;padding-top:54px;padding-bottom:34px}
.page-title h1{font-size:36px;margin:8px 0}
.crumb{font-size:14px;color:#687789}
.grid-two{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.content table{width:100%!important;border-collapse:collapse;margin:18px 0}
.content td,.content th{border:1px solid #d7e0ea;padding:10px;vertical-align:middle}
.content img{display:block;margin:18px auto;border-radius:8px}
.content p{margin:0 0 14px}
.content figure{margin:22px 0}
.content figcaption{margin-top:8px;color:#627387;font-size:14px;text-align:center}
.content thead th{background:#edf5fc;color:#16324b;font-weight:800}
.product-detail-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:22px 0}
.product-detail-gallery figure{display:flex;flex-direction:column;margin:0;padding:12px;border:1px solid #dce6ef;border-radius:8px;background:#f8fafc}
.product-detail-gallery img{width:100%;height:300px;margin:0;object-fit:contain;background:#fff}
.product-data-gallery figure:last-child:nth-child(odd){grid-column:1/-1;max-width:66%;justify-self:center;width:100%}
.product-note{margin-top:26px!important;padding:16px 18px;border-left:4px solid #0a5fb4;background:#f2f7fc;color:#43596e}
.content-image-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:20px 0 28px}
.content-image-grid img{width:100%;height:300px;margin:0!important;padding:10px;border:1px solid #dce5ee;border-radius:8px;background:#f8fafc;object-fit:contain}
.content-image-grid img:last-child:nth-child(odd){grid-column:1/-1;max-width:calc(50% - 9px);justify-self:center}
.product-video-section{margin:34px 0;padding:24px;border:1px solid #d8e4ef;border-radius:8px;background:#f4f8fc}
.product-video-section>h2{margin-bottom:8px}
.product-video-section>p{color:#53687b}
.product-video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:20px}
.product-video-card{margin:0!important;overflow:hidden;border:1px solid #d5e0ea;border-radius:8px;background:#fff;box-shadow:0 8px 22px rgba(16,40,72,.06)}
.product-video-card video{display:block;width:100%;aspect-ratio:16/9;background:#0d1726;object-fit:contain}
.product-video-card figcaption{padding:14px 16px;text-align:left}
.product-video-card figcaption strong,.product-video-card figcaption span{display:block}
.product-video-card figcaption strong{color:#132c43;font-size:17px}
.product-video-card figcaption span{margin-top:4px;color:#607387;font-size:14px}
.narrow{max-width:980px;margin:0 auto}
.side{position:sticky;top:92px}
.side h2{font-size:20px;margin-top:16px}
.product-hero .hero-img{background:#fff;border:1px solid #e3eaf2;border-radius:10px;padding:20px;text-align:center;box-shadow:0 10px 26px rgba(16,40,72,.045)}
.evidence dl{display:grid;grid-template-columns:140px 1fr;gap:10px}
.evidence dt{font-weight:700}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px}
.qr{text-align:center}
.qr img{max-width:220px}
.qr strong,.qr span{display:block}
.footer{display:flex;justify-content:space-between;gap:28px;padding:34px 6vw;background:linear-gradient(135deg,#0d1726,#101f33);color:#dbe6f2}
.footer a{color:#fff}
.foot-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.footer .btn{background:#0b72d9;border-color:#0b72d9;color:#fff}
.footer .btn:hover{background:#0a5fb4;border-color:#0a5fb4}
.footer .btn-light{background:rgba(11,114,217,.16);border-color:#4aa3ff;color:#eef7ff;box-shadow:0 10px 20px rgba(0,0,0,.12)}
.footer .btn-light:hover{background:#eaf5ff;border-color:#eaf5ff;color:#0a5fb4}
.faq-title{position:relative;padding-right:260px}
.faq-stats{position:absolute;right:6vw;bottom:38px;display:flex;align-items:baseline;gap:10px;color:#0a5fb4}
.faq-stats strong{font-size:42px;line-height:1}
.faq-stats span{font-weight:700}
.faq-tools{max-width:1120px;margin:0 auto;padding:38px 24px 20px}
.faq-tools label{display:block;font-size:18px;font-weight:800;margin-bottom:10px}
.faq-tools input{width:100%;height:52px;padding:0 16px;border:1px solid #b9cce0;border-radius:8px;background:#fff;font:inherit;font-size:16px;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
.faq-tools input:focus{border-color:#0a5fb4;box-shadow:0 0 0 4px rgba(10,95,180,.1)}
.faq-tools>p{margin:10px 0 20px;color:#5b6878}
.faq-categories{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.faq-categories a{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border:1px solid #d9e5f1;border-radius:8px;background:#f8fbff;font-weight:700;color:#20364d}
.faq-categories a:hover{border-color:#8bbce8;color:#0a5fb4}
.faq-categories span{color:#0a5fb4}
.faq-content{max-width:1120px;margin:0 auto;padding:0 24px 54px}
.faq-content .faq-section{padding:38px 0;border-top:1px solid #dce7f2;scroll-margin-top:100px}
.faq-section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:8px}
.faq-section-head h2{margin:0}
.faq-section-head span{color:#64768a;font-weight:700}
.faq-list{border-bottom:1px solid #dce7f2}
.faq-item{border-top:1px solid #dce7f2;background:#fff}
.faq-item summary{position:relative;padding:18px 50px 18px 4px;font-size:17px;font-weight:800;line-height:1.5;cursor:pointer;list-style:none;color:#162b40}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:8px;top:14px;color:#0a5fb4;font-size:25px;font-weight:500}
.faq-item[open] summary::after{content:'−'}
.faq-item[open] summary{color:#0a5fb4}
.faq-answer{padding:0 50px 20px 4px;color:#4d6074;font-size:16px;line-height:1.85}
.faq-answer p{margin:0}
.faq-product-link{display:inline-block;margin-top:10px;color:#0a5fb4;font-weight:800}
.faq-item[hidden],.faq-section[hidden]{display:none}
.home-main{background:#fff}.home-hero{position:relative;display:flex;align-items:center;min-height:590px;padding:78px 6vw;overflow:hidden;background:#f5f7f9;border-bottom:1px solid #dce5ec}.home-hero::after{content:"";position:absolute;z-index:0;top:42px;right:3vw;bottom:34px;width:53%;background:url('/assets/gpr-3d-vehicle-radar-611.png') center/contain no-repeat}.home-hero-copy{position:relative;z-index:2;width:min(620px,51%)}.home-hero .eyebrow{margin:0 0 14px;color:#0a5fb4;font-size:14px;font-weight:800;letter-spacing:.08em}.home-hero h1{max-width:600px;margin:0 0 20px;font-size:48px;line-height:1.16;color:#101820}.home-hero .hero-lead{max-width:590px;margin:0;color:#3f5264;font-size:20px;line-height:1.85}.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.hero-tags span{padding:7px 11px;border:1px solid #b9cfdf;border-radius:6px;background:rgba(255,255,255,.84);color:#24455f;font-size:14px;font-weight:700}.hero-product-label{position:absolute;z-index:2;right:6vw;bottom:48px;display:flex;align-items:baseline;gap:10px;padding:10px 14px;border-left:3px solid #0a5fb4;background:rgba(255,255,255,.92);box-shadow:0 10px 24px rgba(23,47,70,.1)}.hero-product-label strong{font-size:18px;color:#102b42}.hero-product-label span{color:#53697b;font-size:14px}.trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0 6vw!important;background:#18212b;color:#fff}.trust-strip div{display:flex;align-items:baseline;justify-content:center;gap:10px;padding:25px 20px;border-right:1px solid rgba(255,255,255,.15)}.trust-strip div:last-child{border-right:0}.trust-strip strong{font-size:30px;color:#fff}.trust-strip span{color:#c8d2dc;font-size:14px}.home-section{padding-top:62px;padding-bottom:64px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:28px}.section-head h2{margin:0 0 8px;font-size:34px}.section-head p:not(.section-kicker){max-width:720px;margin:0;color:#5c6c7c}.section-head>a{flex:0 0 auto;padding:9px 14px;border:1px solid #9ebbd4;border-radius:6px;color:#0a5fb4;font-weight:800}.section-head>a:hover{background:#edf5fb}.section-kicker{margin:0 0 7px;color:#0a5fb4;font-size:12px;font-weight:900;letter-spacing:.12em}.category-band,.knowledge-band{background:#f5f7f9}.category-band .cat-card{min-height:118px;padding:24px 20px;background:#fff;border-color:#d8e2ea}.category-band .cat-card strong{font-size:18px;color:#13293b}.category-band .cat-card span{margin-top:8px}.home-section .cards{margin-bottom:0}.home-section .card{box-shadow:0 12px 28px rgba(19,42,61,.06)}.home-section .card img{background:#f8fafb;padding:20px}.knowledge-band .article-card{background:#fff}
.home-hero::after{display:none}.hero-showcase{position:absolute;z-index:2;top:50%;right:4.5vw;width:min(650px,47%);transform:translateY(-50%);overflow:hidden;border:1px solid #cbd9e5;border-radius:8px;background:#fff;box-shadow:0 20px 48px rgba(20,45,65,.13)}.hero-slides{position:relative;aspect-ratio:16/9;background:#eef3f7}.hero-slide{position:absolute;inset:0;display:block;opacity:0;visibility:hidden;transition:opacity .45s ease,visibility .45s ease}.hero-slide.is-active{opacity:1;visibility:visible}.hero-slide img{display:block;width:100%;height:100%;object-fit:cover}.hero-slide-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:6px;background:#fff;border-top:1px solid #dce5ec}.hero-slide-controls button{min-height:42px;border:0;border-radius:5px;background:transparent;color:#53687a;font:inherit;font-size:14px;font-weight:800;cursor:pointer}.hero-slide-controls button.is-active{background:#e9f3fc;color:#0a5fb4}.hero-slide-controls button:hover{color:#0a5fb4}
.top{display:block;padding:0 4vw;background:rgba(255,255,255,.98);border-bottom:1px solid #d6e1ea;box-shadow:0 8px 24px rgba(24,46,66,.07)}.top-inner{display:flex;align-items:center;gap:18px;width:min(1340px,100%);min-height:82px;margin:0 auto}.top .brand{display:flex;align-items:center;flex:0 0 228px;min-width:0;padding-right:22px;border-right:1px solid #dbe4ec}.top .brand img{width:220px;max-height:54px;object-fit:contain}.top nav{display:flex;align-items:center;justify-content:center;gap:2px;flex:1;min-width:0;flex-wrap:nowrap}.top nav a{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:9px 12px;border-radius:6px;color:#263a4d;font-size:15px;font-weight:750;white-space:nowrap;transition:color .18s ease,background .18s ease}.top nav a:hover{background:#edf5fc;color:#0a5fb4;box-shadow:none}.top nav a.active{background:#e7f2fc;color:#075aa8}.top nav a.active::after{content:"";position:absolute;right:12px;bottom:4px;left:12px;height:2px;border-radius:2px;background:#0a67c7}.top .phone{display:flex;flex:0 0 154px;flex-direction:column;align-items:flex-start;justify-content:center;gap:1px;min-height:52px;padding:7px 15px;border-radius:7px;background:#0a67c7;color:#fff;box-shadow:0 9px 22px rgba(10,103,199,.22)}.top .phone span{font-size:11px;font-weight:700;opacity:.82}.top .phone strong{color:#fff;font-size:16px;line-height:1.2;letter-spacing:.02em}
.license-section{margin:34px 0 38px;padding-top:26px;border-top:1px solid #dce5ec}.license-section>p{color:#5b6d7e}.license-section a{display:block;margin-top:18px;overflow:hidden;border:1px solid #d5dee6;border-radius:8px;background:#f7f7f4;box-shadow:0 14px 34px rgba(42,44,36,.08)}.license-section img{display:block;width:100%;margin:0;border-radius:0}
.article-title>strong{display:inline-block;margin-top:12px;padding:7px 12px;border-radius:6px;background:#0a5fb4;color:#fff}.article-group{padding-top:34px}.article-group-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;border-bottom:1px solid #dce6f0}.article-group-head h2{margin:0 0 12px}.article-group-head span{color:#557087;font-weight:700}.article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.article-card{display:flex;flex-direction:column;gap:8px;padding:20px;border:1px solid #dce6f0;border-radius:8px;background:#fff;transition:border-color .2s,box-shadow .2s}.article-card:hover{border-color:#78aee0;box-shadow:0 8px 22px rgba(29,78,124,.09)}.article-card span{color:#0a5fb4;font-size:13px;font-weight:700}.article-card strong{font-size:19px;line-height:1.45;color:#12263a}.article-card p{margin:0;color:#566a7d}.article-card small{margin-top:auto;color:#78899a}.article-lead{font-size:18px;line-height:1.9;color:#334b63;padding:16px 18px;border-left:4px solid #0a5fb4;background:#f5f9fd}.inline-product-link{display:inline-flex;padding:9px 14px;border-radius:6px;background:#e8f1fb;color:#0a5fb4;font-weight:700}.home-articles{margin-top:6px}.references{margin-top:34px;padding-top:28px;border-top:1px solid #dce6f0}.references p{color:#566a7d}.references a{color:#0a5fb4;text-decoration:underline;text-underline-offset:3px}.references a:hover{color:#073f7a}
@media(max-width:900px){.top{position:static;align-items:flex-start;flex-direction:column}.hero,.grid-two,.contact-grid{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.side{position:static}.footer{flex-direction:column}}
@media(max-width:900px){.home-hero{min-height:560px}.home-hero-copy{width:52%}.home-hero h1{font-size:40px}.hero-showcase{right:3vw;width:43%}.trust-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.trust-strip div:nth-child(2){border-right:0}.trust-strip div:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.15)}}
@media(max-width:1120px){.top-inner{gap:10px}.top .brand{flex-basis:190px;padding-right:12px}.top .brand img{width:184px}.top nav a{padding-right:8px;padding-left:8px;font-size:14px}.top .phone{flex-basis:142px;padding-right:12px;padding-left:12px}.top .phone strong{font-size:15px}}
@media(max-width:760px){.top{position:static;padding:0 6vw}.top-inner{align-items:stretch;flex-direction:column;gap:10px;padding:14px 0 16px}.top .brand{flex:0 0 auto;width:210px;padding:0;border-right:0}.top .brand img{width:210px}.top nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;width:100%}.top nav a{min-height:40px;padding:6px 3px;font-size:14px}.top nav a.active::after{right:10px;bottom:2px;left:10px}.top .phone{flex:0 0 auto;align-items:center;width:100%;min-height:48px}.top .phone span{display:none}.top .phone strong{font-size:16px}}
@media(max-width:560px){.hero{padding:56px 6vw}.hero h1,.page-title h1{font-size:30px}.cards,.cat-grid{grid-template-columns:1fr}.phone{width:100%;text-align:center}.top nav{gap:12px}.brand img{width:170px}.btn{width:100%}.foot-actions{align-items:stretch}}
@media(max-width:620px){.home-hero{display:block;min-height:0;padding:54px 6vw 330px}.home-hero-copy{width:100%}.home-hero h1{font-size:32px}.home-hero .hero-lead{font-size:17px;line-height:1.75}.hero-tags{gap:7px;margin-top:20px}.hero-tags span{font-size:13px}.hero-showcase{top:auto;right:5%;bottom:24px;width:90%;transform:none}.hero-slide-controls button{min-height:38px;font-size:13px}.trust-strip div{display:block;padding:20px 12px;text-align:center}.trust-strip strong,.trust-strip span{display:block}.trust-strip strong{font-size:27px}.home-section{padding-top:48px;padding-bottom:50px}.section-head{align-items:flex-start;flex-direction:column;gap:16px}.section-head h2{font-size:29px}.section-head>a{width:100%;text-align:center}}
@media(max-width:900px){.faq-title{padding-right:6vw}.faq-stats{position:static;margin-top:22px}.faq-categories{grid-template-columns:repeat(2,minmax(0,1fr))}.faq-content .faq-section{scroll-margin-top:20px}}
@media(max-width:560px){.faq-tools,.faq-content{padding-left:20px;padding-right:20px}.faq-categories{grid-template-columns:1fr}.faq-stats strong{font-size:36px}.faq-section-head{align-items:flex-end}.faq-item summary{padding-right:42px}.faq-answer{padding-right:8px}}
@media(max-width:720px){.article-list{grid-template-columns:1fr}.article-card{padding:17px}.article-card strong{font-size:17px}.article-lead{font-size:16px}.article-group-head{align-items:flex-end}}
@media(max-width:720px){.product-detail-gallery{grid-template-columns:1fr}.product-detail-gallery img{height:auto}.product-data-gallery figure:last-child:nth-child(odd){grid-column:auto;max-width:none}.content table{font-size:14px}.content td,.content th{padding:8px 7px}}
@media(max-width:720px){.product-video-section{padding:18px}.product-video-grid{grid-template-columns:1fr}.product-video-card video{aspect-ratio:16/9}}
@media(max-width:720px){.content-image-grid{grid-template-columns:1fr;gap:12px}.content-image-grid img{height:auto;max-height:340px}.content-image-grid img:last-child:nth-child(odd){grid-column:auto;max-width:none}}