:root{--navy:#0B2545;--navy2:#13315C;--cyan:#00B4D8;--cyan-d:#0096C7;--cyan-bg:#E5F6FB;--ink:#16283E;--gray:#5C6B7A;--line:#E3E9F0;--soft:#F5F9FC;--pet:#F4845F}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.75;font-size:16px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
img,svg{max-width:100%}
h1,h2,h3{color:var(--navy);line-height:1.35}
h1{font-size:34px;font-weight:800}
h2{font-size:26px;font-weight:800}
h3{font-size:18px;font-weight:700}
p{color:#33475E}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:6px 14px;z-index:999}
.btn{display:inline-block;border-radius:8px;padding:12px 26px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:.2s;text-align:center}
.btn-primary{background:var(--cyan);color:#03293A}
.btn-primary:hover{background:var(--cyan-d);color:#fff}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy2)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.tagline{display:inline-block;background:var(--cyan-bg);color:var(--cyan-d);border-radius:999px;padding:4px 16px;font-size:13px;font-weight:600}
.topbar{background:var(--navy);color:#9FB6CC;font-size:12.5px;padding:6px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#CBDCEC;border:1px solid rgba(255,255,255,.3);border-radius:6px;padding:2px 12px;font-size:12px}
.topbar a:hover{background:var(--cyan);color:#03293A;border-color:var(--cyan)}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
nav.main{display:flex;justify-content:space-between;align-items:center;padding:13px 0}
.logo{font-size:20px;font-weight:800;color:var(--navy);letter-spacing:1px}
.logo span{color:var(--cyan)}
.menu{display:flex;gap:24px;font-size:14.5px;align-items:center}
.menu a:hover{color:var(--cyan-d)}
.menu .cta{background:var(--navy);color:#fff;border-radius:8px;padding:8px 18px;font-weight:600}
.menu .cta:hover{background:var(--navy2);color:#fff}
@media(max-width:900px){.menu{display:none}}
.hero{position:relative;background:linear-gradient(118deg,var(--navy) 0%,var(--navy2) 52%,#0E4C6E 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(0,180,216,.30),transparent 65%);top:-140px;right:-80px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:76px 24px 88px;position:relative;z-index:1}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding:56px 24px}}
.hero h1{color:#fff}
.hero .sub{margin:16px 0 28px;color:#B9CEE3;font-size:17px;max-width:480px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:7px 14px;font-size:12.5px;color:#D7E6F2}
.stats{border-bottom:1px solid var(--line);background:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:32px 24px}
@media(max-width:700px){.stats .wrap{grid-template-columns:repeat(2,1fr);row-gap:18px}}
.stat{text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{display:block;font-size:30px;color:var(--navy);font-weight:800}
.stat b i{font-style:normal;color:var(--cyan-d)}
.stat span{font-size:13px;color:var(--gray)}
section.block{padding:76px 0}
section.block.soft{background:var(--soft)}
.sec-head{max-width:680px;margin:0 auto 44px;text-align:center}
.sec-head h2{margin:10px 0 12px}
.sec-head p{color:var(--gray)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:960px){.grid4,.grid3{grid-template-columns:repeat(2,1fr)}.grid2{grid-template-columns:1fr}}
@media(max-width:560px){.grid4,.grid3{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(11,37,69,.12)}
.card .visual{height:160px;display:flex;align-items:center;justify-content:center;position:relative}
.card .visual svg{width:70%;height:auto}
.card .visual.photo{padding:0;overflow:hidden}
.card .visual.photo img{width:100%;height:100%;object-fit:cover;display:block}
.v-home{background:linear-gradient(135deg,#0B2545,#1B4370)}
.v-biz{background:linear-gradient(135deg,#13315C,#0E4C6E)}
.v-pet{background:linear-gradient(135deg,#7A3E2B,#F4845F)}
.v-med{background:linear-gradient(135deg,#081F3A,#0B2545 60%,#0E6E8C)}
.card .body{padding:20px;flex:1;display:flex;flex-direction:column}
.card h3{margin-bottom:8px;font-size:17px}
.card p{font-size:13.5px;color:var(--gray);flex:1}
.card .more{margin-top:12px;font-size:13.5px;color:var(--cyan-d);font-weight:700}
.banner{background:linear-gradient(115deg,#081F3A 0%,var(--navy) 55%,#0E6E8C 120%);color:#fff;border-radius:18px;padding:48px;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;position:relative;overflow:hidden}
@media(max-width:900px){.banner{grid-template-columns:1fr;padding:36px 26px}}
.banner h2{color:#fff}
.banner p{color:#B9CEE3;font-size:14.5px;margin:12px 0 20px}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px;margin-bottom:22px}
@media(max-width:560px){.checks{grid-template-columns:1fr}}
.checks div{font-size:13.5px;color:#D7E6F2}
.checks div::before{content:"✓ ";color:var(--cyan);font-weight:800}
.med-badges{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}
.med-badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:13px 18px;font-size:13.5px;color:#E3EEF7}
.med-badge b{color:var(--cyan)}
.params{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:960px){.params{grid-template-columns:repeat(2,1fr)}}
.param{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 20px;text-align:center}
.param b{display:block;font-size:32px;color:var(--navy);font-weight:800}
.param b i{font-style:normal;font-size:15px;color:var(--cyan-d)}
.param h3{font-size:15px;margin:6px 0 4px}
.param span{font-size:12.5px;color:var(--gray)}
.scenes{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
@media(max-width:960px){.scenes{grid-template-columns:repeat(2,1fr)}}
.scene{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 14px;text-align:center;font-size:14px}
.scene .ico{width:50px;height:50px;border-radius:50%;background:var(--cyan-bg);display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:23px}
.faq{border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:10px 0;background:#fff}
.faq summary{font-weight:600;font-size:15px;color:var(--navy);cursor:pointer}
.faq p{font-size:14px;color:var(--gray);margin-top:8px}
.quote{background:linear-gradient(118deg,var(--navy) 0%,var(--navy2) 60%,#0E4C6E 100%);border-radius:18px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;color:#fff}
@media(max-width:900px){.quote{grid-template-columns:1fr;padding:36px 24px}}
.quote h2{color:#fff}
.quote p{color:#B9CEE3;font-size:14.5px}
.q-channels{margin-top:24px;display:flex;flex-direction:column;gap:12px;font-size:14px}
.q-channels div{display:flex;align-items:center;gap:10px;color:#D7E6F2}
.q-channels b{color:#fff}
.q-channels .dot{width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.qf{display:flex;flex-direction:column;gap:12px}
.qf input,.qf select,.qf textarea{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:12px 14px;color:#fff;font-size:14px;font-family:inherit;outline:none;width:100%}
.qf input::placeholder,.qf textarea::placeholder{color:#8FA9C2}
.qf input:focus,.qf textarea:focus,.qf select:focus{border-color:var(--cyan)}
.qf .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.qf .row{grid-template-columns:1fr}}
.qf button{background:var(--cyan);color:#03293A;font-weight:700;border:none;border-radius:8px;padding:13px;font-size:15px;cursor:pointer}
.qf .note{font-size:11.5px;color:#8FA9C2}
.crumb{font-size:12.5px;color:var(--gray);padding:16px 0 0}
.crumb nav[aria-label=Breadcrumb] ol{list-style:none;display:flex;gap:8px;flex-wrap:wrap}
.crumb li+li::before{content:"/";margin-right:8px;color:#B5C2CE}
.pd-hero{background:linear-gradient(118deg,var(--navy) 0%,var(--navy2) 55%,#0E4C6E 100%);color:#fff;position:relative;overflow:hidden}
.pd-hero::before{content:"";position:absolute;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(0,180,216,.26),transparent 65%);top:-120px;right:-60px}
.pd-hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start;padding:44px 24px 56px;position:relative;z-index:1}
@media(max-width:960px){.pd-hero .wrap{grid-template-columns:1fr}}
.pd-hero h1{color:#fff;font-size:32px;margin:8px 0 12px}
.pd-hero .kicker{color:#7FE3F7;font-size:13px;letter-spacing:2px;font-weight:700}
.pd-hero p{color:#B9CEE3;font-size:15px;max-width:460px}
.specbar{display:flex;margin:22px 0 24px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:12px;overflow:hidden;max-width:500px}
.specbar div{flex:1;padding:12px 6px;text-align:center;border-right:1px solid rgba(255,255,255,.15)}
.specbar div:last-child{border-right:none}
.specbar b{display:block;font-size:18px;color:#7FE3F7}
.specbar span{font-size:11.5px;color:#B9CEE3}
.qcard{background:rgba(255,255,255,.97);color:var(--ink);border-radius:16px;padding:26px;box-shadow:0 20px 50px rgba(0,0,0,.28)}
.qcard h2{font-size:17px;color:var(--navy)}
.qcard .rt{font-size:12.5px;color:var(--cyan-d);font-weight:700;margin:4px 0 14px}
.qcard ul{list-style:none;margin-bottom:16px}
.qcard li{font-size:13.5px;padding:7px 0;border-bottom:1px dashed var(--line)}
.qcard li::before{content:"✓ ";color:var(--cyan-d);font-weight:800}
.qcard .wa{display:block;text-align:center;font-size:13px;color:var(--cyan-d);font-weight:600;padding:8px 0 0}
.qf-light input,.qf-light select,.qf-light textarea{background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:10px 12px;font-size:13.5px;font-family:inherit;width:100%;margin-bottom:10px;outline:none}
.qf-light input:focus,.qf-light textarea:focus,.qf-light select:focus{border-color:var(--cyan)}
table.spec{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0}
table.spec th{background:#EEF4FA;color:var(--navy);text-align:left;padding:10px 14px;border:1px solid var(--line);width:32%}
table.spec td{padding:10px 14px;border:1px solid var(--line)}
.certs-row{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}
.certs-row span{background:var(--cyan-bg);color:var(--cyan-d);border-radius:8px;padding:7px 15px;font-size:13px;font-weight:600}
.dl-box{border:1px solid var(--line);border-radius:12px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin:12px 0}
.dl-box b{color:var(--navy);font-size:14.5px}
.dl-box span{display:block;font-size:12.5px;color:var(--gray)}
.timeline{border-left:3px solid var(--cyan);margin:18px 0 0 8px;padding-left:22px}
.timeline div{position:relative;padding-bottom:18px;font-size:14px}
.timeline div::before{content:"";position:absolute;left:-30px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--cyan)}
.timeline b{color:var(--navy)}
footer.site{background:#081F3A;color:#7E93A9;padding:44px 0 28px;font-size:13px}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
@media(max-width:700px){footer.site .cols{grid-template-columns:1fr}}
footer.site h3{color:#C9D8E8;font-size:14px;margin-bottom:12px}
footer.site a{display:block;margin:5px 0}
footer.site a:hover{color:#fff}
footer.site .logo{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;text-align:center;font-size:12px}

/* 满屏沉浸式 Hero（真实场景图背景） */
.hero.imgbg{background-size:cover;background-position:center 60%;background-repeat:no-repeat}
.hero.imgbg::before{display:none}
.hero.imgbg .wrap{grid-template-columns:1fr;max-width:860px;margin:0 auto;padding:110px 24px 120px;text-align:left}
.hero.imgbg .sub{color:#D9E8F4}

/* 视频展示区 */
.vid-feature video{width:100%;aspect-ratio:16/9;background:var(--navy);border-radius:14px;display:block;box-shadow:0 18px 44px rgba(11,37,69,.20)}
.vid-feature .cap{font-size:12.5px;color:var(--gray);margin-top:8px}
.vid-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
@media(max-width:900px){.vid-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.vid-grid{grid-template-columns:1fr}}
.vid-card video{width:100%;height:280px;background:var(--navy);border-radius:12px;display:block;object-fit:contain}
.vid-card .cap{font-size:12px;color:var(--gray);line-height:1.6;margin-top:8px}
.vid-card .cap b{color:var(--navy);font-size:13.5px;display:block}
.vid-sub{color:var(--gray);font-size:14px;margin:6px 0 18px}