:root{--navy:#0b2440;--blue:#164f82;--blue2:#246eaa;--orange:#f28a1a;--orange2:#ffad3d;--ink:#152333;--muted:#617083;--line:#d9e2eb;--paper:#f5f8fb;--white:#fff;--dark:#071727;--radius:18px;--shadow:0 18px 50px rgba(9,39,67,.12);--max:1180px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:92px}body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;color:var(--ink);background:#fff;line-height:1.75}a{text-decoration:none;color:inherit}button,input,textarea{font:inherit}img{display:block;max-width:100%}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.topbar{background:var(--dark);color:#b8c7d6;font-size:13px}.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:38px}.topbar a{color:#fff}.header{height:78px;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(11,36,64,.09);position:sticky;top:0;z-index:50;backdrop-filter:blur(14px)}.header .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;align-items:center;gap:12px;min-width:310px}.brand img{width:64px;height:52px;object-fit:contain}.brand strong{display:block;font-size:18px;line-height:1.25;color:var(--navy);letter-spacing:.02em}.brand small{display:block;color:#78899a;font-size:10px;letter-spacing:.18em;margin-top:3px}.nav{display:flex;align-items:center;gap:26px;list-style:none}.nav a{font-size:14px;font-weight:700;color:#33475b;position:relative;padding:27px 0}.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:19px;height:3px;background:var(--orange);transition:.25s}.nav a:hover,.nav a.active{color:var(--blue)}.nav a:hover:after,.nav a.active:after{right:0}.nav-cta{display:flex;align-items:center;gap:9px;color:#fff;background:var(--orange);padding:11px 17px;border-radius:8px;font-size:14px;font-weight:800}.nav-cta svg{width:17px}.menu-btn{display:none;border:0;background:none;color:var(--navy);padding:8px}.menu-btn svg{width:25px;height:25px}.hero{position:relative;min-height:650px;overflow:hidden;background:linear-gradient(90deg,rgba(5,22,38,.98) 0%,rgba(8,39,66,.92) 48%,rgba(8,39,66,.3) 100%),url('hero-road.png') center/cover no-repeat;color:#fff}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to right,#000,transparent 72%)}.road-lines{position:absolute;right:-13%;bottom:-35%;width:67%;height:120%;transform:rotate(-9deg);opacity:.2}.road-lines:before,.road-lines:after{content:"";position:absolute;inset:0;border-radius:50%;border-left:22px solid #fff;transform:skewX(-12deg)}.road-lines:after{left:95px;border-left-color:var(--orange)}.hero .container{position:relative;z-index:2;min-height:650px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:70px}.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#ffd29c;font-size:13px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.eyebrow:before{content:"";width:34px;height:2px;background:var(--orange)}.hero h1{font-size:clamp(42px,5vw,66px);line-height:1.13;margin:20px 0 20px;letter-spacing:-.035em}.hero h1 em{display:block;color:var(--orange2);font-style:normal}.hero-copy{font-size:18px;color:#ccdae6;max-width:640px}.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 22px;border-radius:8px;font-weight:800;border:1px solid transparent;transition:.25s}.btn svg{width:18px}.btn-primary{background:var(--orange);color:#fff;box-shadow:0 12px 26px rgba(242,138,26,.25)}.btn-primary:hover{background:#ff9d2b;transform:translateY(-2px)}.btn-ghost{border-color:rgba(255,255,255,.3);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.08)}.hero-panel{position:relative;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:28px;backdrop-filter:blur(10px);box-shadow:0 28px 90px rgba(0,0,0,.22)}.hero-logo{background:#fff;border-radius:18px;padding:28px 30px 20px;margin-bottom:20px}.hero-logo img{width:100%;max-height:230px;object-fit:contain}.hero-logo small{display:block;color:#7c8a98;text-align:center;font-size:11px;margin-top:8px}.hero-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hero-list div{display:flex;gap:8px;align-items:center;background:rgba(255,255,255,.07);padding:11px 12px;border-radius:8px;font-size:13px}.hero-list svg{width:16px;color:var(--orange2)}.trust-strip{position:relative;z-index:3;margin-top:-38px}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:var(--shadow);border-radius:15px;overflow:hidden}.trust-item{display:flex;gap:14px;align-items:center;padding:24px 26px;border-right:1px solid var(--line)}.trust-item:last-child{border-right:0}.trust-item svg{width:28px;height:28px;color:var(--orange)}.trust-item strong{display:block;color:var(--navy);font-size:16px}.trust-item span{display:block;color:var(--muted);font-size:12px}.section{padding:92px 0}.section.soft{background:var(--paper)}.section.dark{background:var(--navy);color:#fff}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}.section-heading .copy{max-width:650px}.kicker{display:block;color:var(--orange);font-weight:900;font-size:12px;letter-spacing:.17em;margin-bottom:10px}.section-heading h2{font-size:clamp(30px,3vw,42px);line-height:1.25;color:var(--navy)}.dark .section-heading h2{color:#fff}.section-heading p{color:var(--muted);margin-top:10px}.dark .section-heading p{color:#b9c8d5}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:800}.text-link svg{width:18px}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.service-card{position:relative;background:#fff;padding:28px 24px;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.28s}.service-card:before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--blue),var(--orange))}.service-card:hover{transform:translateY(-7px);box-shadow:var(--shadow);border-color:transparent}.icon-box{width:54px;height:54px;border-radius:12px;background:#edf5fb;color:var(--blue);display:grid;place-items:center;margin-bottom:20px}.icon-box svg{width:28px;height:28px}.service-card h3{color:var(--navy);font-size:19px;margin-bottom:10px}.service-card p{font-size:14px;color:var(--muted)}.service-card ul{list-style:none;margin-top:16px;display:grid;gap:7px}.service-card li{display:flex;align-items:center;gap:8px;color:#435468;font-size:13px}.service-card li:before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange)}.process{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}.process-item{position:relative;padding:26px 18px 22px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px}.process-item:before{counter-increment:step;content:"0" counter(step);display:block;color:var(--orange2);font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:18px}.process-item svg{width:30px;height:30px;margin-bottom:15px}.process-item h3{font-size:16px;margin-bottom:7px}.process-item p{font-size:12px;color:#aebfce}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}.product-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.product-visual{height:165px;background:linear-gradient(145deg,#102d4c,#1b5a8a);display:grid;place-items:center;position:relative;color:#fff}.product-visual:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,transparent 0 24px,rgba(255,255,255,.035) 24px 25px)}.product-visual svg{width:48px;height:48px;color:#ffad3d;z-index:1}.product-card .body{padding:20px}.product-card h3{font-size:16px;color:var(--navy);margin-bottom:7px}.product-card p{font-size:13px;color:var(--muted)}.product-badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:4px 8px;border-radius:5px;font-size:11px}.scene-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-template-rows:240px 240px;gap:16px}.scene-slot{position:relative;overflow:hidden;border-radius:16px;background:linear-gradient(145deg,#0c2d4b,#1d6598);color:#fff;padding:24px;display:flex;flex-direction:column;justify-content:end;min-height:220px}.scene-slot:first-child{grid-row:1/3}.scene-slot:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 12%,rgba(4,18,31,.86) 100%)}.scene-slot:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 38px,rgba(255,255,255,.035) 38px 40px)}.scene-slot>*{position:relative;z-index:1}.scene-slot svg{width:44px;height:44px;color:var(--orange2);margin-bottom:auto}.scene-slot small{font-size:11px;letter-spacing:.12em;color:#ffc987}.scene-slot h3{font-size:21px;margin:5px 0}.scene-slot p{font-size:13px;color:#c6d5e2}.media-note{display:inline-flex;align-items:center;gap:8px;margin-top:22px;color:#738497;font-size:13px;background:#eaf0f5;border-radius:8px;padding:10px 13px}.media-note svg{width:16px}.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}.about-brand{background:#fff;border-radius:22px;padding:40px;box-shadow:var(--shadow);position:relative}.about-brand:after{content:"";position:absolute;right:0;bottom:0;border-style:solid;border-width:0 0 90px 90px;border-color:transparent transparent var(--orange) transparent;border-bottom-right-radius:22px;opacity:.85}.about-brand img{width:100%}.about-copy h2{font-size:38px;line-height:1.3;color:var(--navy);margin:12px 0 18px}.about-copy p{color:var(--muted);margin-bottom:14px}.facts{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.fact{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);padding:14px;border-radius:10px}.fact svg{color:var(--orange);width:20px}.license{display:flex;gap:16px;align-items:center;margin-top:26px;padding:18px;border-left:4px solid var(--orange);background:#fff4e7}.license svg{width:28px;color:var(--orange)}.contact{background:linear-gradient(120deg,#061626 0%,#0b2946 100%);color:#fff;position:relative;overflow:hidden}.contact:before{content:"";position:absolute;width:600px;height:600px;border:90px solid rgba(242,138,26,.08);border-radius:50%;right:-260px;top:-230px}.contact-grid{position:relative;display:grid;grid-template-columns:.85fr 1.15fr;gap:60px}.contact h2{font-size:39px;line-height:1.28;margin:12px 0 16px}.contact-copy>p{color:#b9c9d7}.contact-list{display:grid;gap:16px;margin-top:30px}.contact-row{display:flex;gap:14px;align-items:flex-start}.contact-row .mini{width:42px;height:42px;border-radius:9px;background:rgba(255,255,255,.08);display:grid;place-items:center;color:var(--orange2);flex:0 0 auto}.contact-row svg{width:19px}.contact-row span{display:block;color:#aebfce;font-size:12px}.contact-row strong{display:block;font-size:15px;margin-top:2px}.wechat-card{display:flex;align-items:center;gap:16px;margin-top:26px;padding:17px;border:1px dashed rgba(255,255,255,.24);border-radius:12px}.wechat-placeholder{width:74px;height:74px;background:#fff;border-radius:8px;display:grid;place-items:center;color:var(--blue)}.wechat-placeholder svg{width:34px}.wechat-card small{color:#aebfce}.form-card{background:#fff;color:var(--ink);border-radius:18px;padding:30px;box-shadow:0 24px 70px rgba(0,0,0,.25)}.form-card h3{font-size:23px;color:var(--navy);margin-bottom:5px}.form-card>p{font-size:13px;color:var(--muted);margin-bottom:20px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:12px;font-weight:800;color:#405268}.field input,.field select,.field textarea{width:100%;border:1px solid #d5dfe8;border-radius:8px;padding:11px 12px;outline:none;background:#f9fbfd}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,79,130,.08)}.field textarea{min-height:102px;resize:vertical}.form-note{font-size:11px;color:#8190a0;margin-top:10px}.submit{width:100%;margin-top:16px;border:0;background:var(--orange);color:#fff;padding:13px;border-radius:8px;font-weight:900;cursor:pointer}.footer{background:#04101c;color:#94a8ba;padding:34px 0}.footer .container{display:flex;justify-content:space-between;align-items:center;gap:24px}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{width:47px;height:40px;object-fit:contain}.footer strong{color:#fff;display:block}.footer small{font-size:11px}.footer-links{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end;font-size:12px}.footer a:hover{color:#fff}.float-actions{position:fixed;right:18px;bottom:22px;z-index:60;display:grid;gap:10px}.float-action{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:0;color:#fff;box-shadow:0 9px 25px rgba(0,0,0,.2);cursor:pointer}.float-action svg{width:21px}.float-action.phone{background:var(--orange)}.float-action.wechat{background:#18a45b}.float-action.top{background:var(--navy)}.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);background:#12283d;color:#fff;padding:12px 20px;border-radius:8px;opacity:0;pointer-events:none;transition:.25s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}.reveal{opacity:0;transform:translateY(22px);transition:.7s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:1050px){.nav{gap:16px}.nav-cta{display:none}.service-grid,.product-grid{grid-template-columns:repeat(2,1fr)}.process{grid-template-columns:repeat(3,1fr)}.scene-grid{grid-template-columns:1fr 1fr}.scene-slot:first-child{grid-row:auto;grid-column:1/-1}.hero .container{gap:35px}.brand{min-width:auto}}
@media(max-width:760px){html{scroll-padding-top:70px}.topbar .container span:first-child{display:none}.topbar .container{justify-content:center}.header{height:68px}.brand img{width:48px;height:40px}.brand strong{font-size:15px}.brand small{display:none}.menu-btn{display:block}.nav{position:absolute;left:0;right:0;top:68px;background:#fff;display:none;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 18px;border-bottom:1px solid var(--line);box-shadow:0 15px 30px rgba(9,39,67,.12)}.nav.open{display:flex}.nav a{display:block;padding:12px 0}.nav a:after{bottom:7px}.hero,.hero .container{min-height:auto}.hero .container{grid-template-columns:1fr;padding-top:72px;padding-bottom:88px}.hero-panel{display:none}.hero-copy{font-size:16px}.trust-strip{margin-top:-28px}.trust-grid{grid-template-columns:1fr 1fr}.trust-item{padding:17px;border-bottom:1px solid var(--line)}.section{padding:70px 0}.section-heading{display:block}.section-heading .text-link{margin-top:16px}.service-grid,.product-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.process{grid-template-columns:1fr 1fr}.scene-grid{grid-template-columns:1fr;grid-template-rows:auto}.scene-slot:first-child{grid-column:auto}.facts{grid-template-columns:1fr}.footer .container{flex-direction:column;align-items:flex-start}.footer-links{justify-content:flex-start}.footer-links a,.section-heading .text-link{min-height:44px;display:inline-flex;align-items:center}.field-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.float-actions{right:12px;bottom:14px}}
@media(max-width:480px){.container{width:min(100% - 28px,var(--max))}.hero h1{font-size:36px}.trust-grid{grid-template-columns:1fr}.trust-item{border-right:0}.service-grid,.product-grid,.process{grid-template-columns:1fr}.section-heading h2,.about-copy h2,.contact h2{font-size:29px}.hero-actions .btn{width:100%}.form-card{padding:22px}.topbar{display:none}}
.hero-photo{border-radius:18px;overflow:hidden;margin-bottom:20px;box-shadow:0 16px 44px rgba(0,0,0,.28);aspect-ratio:4/3}
.hero-photo img{width:100%;height:100%;object-fit:cover;display:block}
.hero-m-photo{display:none;border-radius:16px;overflow:hidden;margin-top:30px;aspect-ratio:4/3}
.hero-m-photo img{width:100%;height:100%;object-fit:cover;display:block}
.card-photo{border-radius:10px;overflow:hidden;margin-bottom:18px;aspect-ratio:4/3}
.card-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.service-card:hover .card-photo img{transform:scale(1.05)}
.product-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;transition:transform .4s}
.product-card:hover .product-visual img{transform:scale(1.05)}
.product-badge{z-index:2;background:rgba(11,36,64,.78);border-color:rgba(255,255,255,.4)}
.scene-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .5s}
.scene-slot:hover .scene-photo{transform:scale(1.05)}
.scene-slot:before{z-index:1}
@media(max-width:760px){.hero-m-photo{display:block}}
.wechat-qr{width:118px;height:118px;background:#fff;border-radius:10px;padding:8px;flex-shrink:0;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.wechat-qr img{width:100%;height:100%}
.qr-pop{position:fixed;inset:0;z-index:110;display:none;place-items:center;background:rgba(7,23,39,.55)}
.qr-pop.open{display:grid}
.qr-pop img{width:min(78vw,300px);background:#fff;border-radius:14px;padding:10px;box-shadow:0 24px 70px rgba(0,0,0,.35)}
.qr-pop-close{position:absolute;top:18px;right:22px;width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.15);color:#fff;font-size:22px;cursor:pointer}
@media(max-width:760px){.wechat-qr{width:104px;height:104px}}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.case-meta{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:18px 22px 12px}
.case-meta h3{font-size:18px;color:var(--navy)}
.case-meta small{color:var(--muted);font-size:12.5px;text-align:right}
.case-photos{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:0 2px 2px}
.case-photos img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.case-photos img:only-child{grid-column:1/-1}
.case-videos{margin-top:30px}
.case-videos h3{font-size:20px;color:var(--navy);margin-bottom:16px}
.video-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.video-item{border-radius:var(--radius);overflow:hidden;background:#000;box-shadow:var(--shadow)}
.video-item video{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
@media(max-width:760px){.case-grid,.video-grid{grid-template-columns:1fr}.case-meta{flex-direction:column;gap:2px}.case-meta small{text-align:left}}
.card-link{position:absolute;inset:0;z-index:5;border-radius:inherit}
.hero-list a{display:flex;align-items:center;gap:10px;padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#e8eef4;font-weight:700;font-size:14px;transition:.2s}
.hero-list a:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.3)}
.page-hero{background:linear-gradient(135deg,var(--dark) 0%,var(--navy) 55%,var(--blue) 100%);color:#fff;padding:86px 0 72px}
.page-hero h1{font-size:42px;color:#fff;letter-spacing:.02em}
.page-hero p{color:#c2d2e0;margin-top:14px;max-width:720px;font-size:16px}
.page-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.page-intro h2{font-size:30px;color:var(--navy);margin-bottom:14px}
.page-intro .intro-copy p{color:var(--muted)}
.page-intro .photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3}
.page-intro .photo img{width:100%;height:100%;object-fit:cover;display:block}
.point-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.point-list li{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 16px;font-weight:600;color:var(--navy);box-shadow:0 6px 18px rgba(9,39,67,.06)}
.point-list li:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--orange);flex-shrink:0}
.cases-more{display:flex;justify-content:center;margin-top:26px}
@media(max-width:760px){.page-hero{padding:64px 0 54px}.page-hero h1{font-size:32px}.page-intro{grid-template-columns:1fr;gap:26px}.point-list{grid-template-columns:1fr}}