*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:#1e2a38;line-height:1.85;background:#fff}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
/* 对称居中导航 */
header{background:#fff;position:sticky;top:0;z-index:30;box-shadow:0 2px 14px rgba(21,101,192,.08)}
.nav{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:84px;gap:24px}
.nav .ml{display:flex;justify-content:flex-end;gap:6px}
.nav .mr{display:flex;justify-content:flex-start;gap:6px}
.nav a.lnk{padding:9px 15px;font-size:15px;font-weight:600;border-radius:5px;color:#34465a}
.nav a.lnk:hover,.nav a.lnk.on{color:#1565c0;background:#eef4fb}
.logo{font-size:25px;font-weight:800;color:#1565c0;text-align:center;white-space:nowrap;line-height:1.1}
.logo small{display:block;font-size:10px;color:#9aacbe;letter-spacing:3px;font-weight:400;margin-top:2px}
.mtog{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:#1565c0}
.mmask{position:fixed;inset:0;background:rgba(13,52,99,.97);z-index:40;display:none;flex-direction:column;align-items:center;justify-content:center;gap:20px}
.mmask.open{display:flex}.mmask a{color:#fff;font-size:20px;font-weight:600}.mmask .x{position:absolute;top:22px;right:28px;font-size:34px;color:#fff}
/* 对角斜切首屏 */
.hero{position:relative;background:#0d3463;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,#1565c0 0 52%,#00acc1 52% 100%);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
.hero::after{content:"";position:absolute;right:8%;top:50%;transform:translateY(-50%);width:340px;height:340px;border:2px solid rgba(255,255,255,.25);border-radius:50%}
.hero .wrap{position:relative;z-index:2;padding:118px 24px}
.hero .kk{display:inline-block;background:rgba(255,255,255,.16);font-size:13px;padding:7px 18px;border-radius:30px;margin-bottom:22px;letter-spacing:1px}
.hero h1{font-size:48px;font-weight:800;margin-bottom:18px;line-height:1.22;max-width:680px}
.hero h1 em{font-style:normal;color:#bff3f7}
.hero p{font-size:18px;opacity:.94;max-width:560px;margin-bottom:32px}
.b{display:inline-block;background:#fff;color:#1565c0;padding:14px 36px;border-radius:30px;font-weight:700;transition:.25s}
.b:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22)}
.b.o{background:transparent;border:2px solid rgba(255,255,255,.7);color:#fff;margin-left:12px}
.b.o:hover{background:#fff;color:#1565c0}
.b.g{background:#00acc1;color:#fff}.b.g:hover{background:#0097a7}
/* 内页头 */
.phead{position:relative;background:#0d3463;color:#fff;overflow:hidden;padding:64px 0}
.phead::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,#1565c0 0 55%,#00acc1 55% 100%);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
.phead .wrap{position:relative;z-index:2}
.phead h1{font-size:37px;font-weight:800;margin-bottom:10px}
.crumb{font-size:14px;opacity:.9}
.crumb a:hover{color:#bff3f7}
/* 计数器 */
.counters{background:#f4f8fc}
.counters .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:54px 24px;text-align:center;gap:20px}
.ct .n{font-size:46px;font-weight:800;color:#1565c0}
.ct .l{font-size:15px;color:#7589a0;margin-top:6px}
/* 区块 + 幽灵大字标题 */
.sec{padding:80px 0}
.sec.alt{background:#f4f8fc}
.sh{position:relative;text-align:center;margin-bottom:54px;padding-top:26px}
.sh .en{position:absolute;top:-8px;left:0;right:0;font-size:64px;font-weight:800;color:#eef3f9;letter-spacing:4px;z-index:0;text-transform:uppercase;line-height:1}
.sec.alt .sh .en{color:#e7eef7}
.sh h2{position:relative;z-index:1;font-size:33px;font-weight:800;color:#0d3463}
.sh h2::after{content:"";display:block;width:54px;height:4px;background:#00acc1;margin:14px auto 0;border-radius:2px}
.sh .u{display:none}
.sh p{position:relative;z-index:1;color:#7589a0;margin-top:14px;font-size:15px}
/* 卡片：左竖条 */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g2{grid-template-columns:repeat(2,1fr)}
.c{padding:30px 26px;background:#fff;border-radius:10px;box-shadow:0 6px 22px rgba(21,101,192,.08);transition:.3s;display:block;position:relative;overflow:hidden}
.c::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(#1565c0,#00acc1)}
.c:hover{transform:translateY(-6px);box-shadow:0 20px 42px rgba(21,101,192,.16)}
.c .ic{width:58px;height:58px;background:linear-gradient(135deg,#eef4fb,#e1f5f7);color:#1565c0;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin-bottom:16px}
.c:hover .ic{background:linear-gradient(135deg,#1565c0,#00acc1);color:#fff}
.c .tg{display:inline-block;font-size:12px;color:#00acc1;background:#e1f5f7;padding:3px 10px;border-radius:12px;margin-bottom:10px}
.c h3{font-size:18px;margin-bottom:10px;color:#0d3463;font-weight:700}
.c p{font-size:14px;color:#7589a0;line-height:1.78}
.c .more{display:inline-block;margin-top:12px;font-size:13px;color:#1565c0;font-weight:700}
/* 带图卡 */
.c.pic{padding:0}
.c.pic::before{display:none}
.c.pic .ph{height:200px;overflow:hidden;background:#e9eff5}
.c.pic .ph img{width:100%;height:100%;object-fit:cover;transition:.5s}
.c.pic:hover .ph img{transform:scale(1.07)}
.c.pic .tx{padding:22px 26px;border-left:4px solid #00acc1}
/* 富文本 */
.rich{max-width:940px;margin:0 auto}
.rich p{font-size:16px;color:#42546a;margin-bottom:15px;line-height:1.95}
.rich p b{color:#1565c0}
img.full{width:100%;border-radius:10px;margin:24px 0}
/* CTA */
.band{position:relative;background:#0d3463;color:#fff;padding:66px 24px;text-align:center;overflow:hidden}
.band::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,#1565c0 0 50%,#00acc1 50% 100%);clip-path:polygon(0 0,100% 0,100% 100%,0 100%)}
.band>*{position:relative;z-index:2}
.band h3{font-size:30px;font-weight:800;margin-bottom:12px}
.band p{opacity:.94;margin-bottom:26px}
/* 时间轴 */
.tl{max-width:880px;margin:0 auto;border-left:3px solid #d7e3ef;padding-left:30px}
.tl .it{position:relative;padding-bottom:30px}
.tl .it:last-child{padding-bottom:0}
.tl .it::before{content:"";position:absolute;left:-38px;top:5px;width:13px;height:13px;border-radius:50%;background:#00acc1;border:3px solid #fff;box-shadow:0 0 0 2px #00acc1}
.tl .yr{font-size:22px;font-weight:800;color:#1565c0;margin-bottom:4px}
.tl p{font-size:15px;color:#7589a0}
/* FAQ */
.faq{max-width:880px;margin:0 auto}
.faq .item{border:1px solid #e3ebf3;border-radius:10px;margin-bottom:14px;overflow:hidden}
.faq .q{padding:20px 26px;font-size:16px;font-weight:700;color:#0d3463;cursor:pointer;display:flex;justify-content:space-between;gap:14px;background:#f7fafd}
.faq .q .pm{color:#00acc1;font-size:22px;transition:.3s}
.faq .item.open .q .pm{transform:rotate(45deg)}
.faq .a{max-height:0;overflow:hidden;transition:max-height .4s}
.faq .item.open .a{max-height:320px}
.faq .a p{padding:18px 26px;color:#7589a0;font-size:15px}
/* 招聘 */
.jobs{max-width:960px;margin:0 auto}
.jb{display:flex;justify-content:space-between;align-items:center;gap:18px;border:1px solid #e3ebf3;border-radius:10px;padding:24px 28px;margin-bottom:14px;transition:.25s}
.jb:hover{border-color:#00acc1;box-shadow:0 10px 26px rgba(21,101,192,.1)}
.jb h3{font-size:18px;color:#0d3463;font-weight:700}
.jb .tags{font-size:13px;color:#9aacbe;margin-top:5px}
.jb .pay{color:#00acc1;font-weight:800;font-size:18px;white-space:nowrap}
/* 新闻列表 */
.nlist{max-width:980px;margin:0 auto}
.ni{display:flex;gap:26px;align-items:center;border:1px solid #e3ebf3;border-radius:10px;padding:24px 28px;margin-bottom:16px;transition:.25s}
.ni:hover{border-color:#00acc1;box-shadow:0 12px 28px rgba(21,101,192,.1)}
.ni .date{text-align:center;background:linear-gradient(135deg,#1565c0,#00acc1);color:#fff;border-radius:10px;padding:14px 18px;white-space:nowrap}
.ni .date .d{font-size:28px;font-weight:800}
.ni .date .m{font-size:12px;opacity:.9}
.ni h3{font-size:18px;color:#0d3463;font-weight:700;margin-bottom:6px}
.ni p{font-size:14px;color:#7589a0}
.ni:hover h3{color:#1565c0}
/* 产品详情 */
.pd{display:grid;grid-template-columns:1fr 1fr;gap:44px;max-width:1100px;margin:0 auto}
.pd .gal img{width:100%;border-radius:10px}
.pd .thumbs{display:flex;gap:12px;margin-top:12px}
.pd .thumbs img{width:33%;border-radius:6px}
.pd h1{font-size:30px;font-weight:800;color:#0d3463;margin-bottom:12px}
.pd .desc{color:#7589a0;margin-bottom:20px;font-size:16px}
.specs{width:100%;border-collapse:collapse;border:1px solid #e3ebf3;border-radius:10px;overflow:hidden;margin-bottom:24px}
.specs td{padding:13px 16px;border-bottom:1px solid #eef3f8;font-size:14px}
.specs tr:last-child td{border-bottom:none}
.specs td:first-child{background:#f4f8fc;color:#5a6b80;width:38%;font-weight:600}
.body{max-width:980px;margin:30px auto 0}
.body h3{font-size:18px;color:#0d3463;font-weight:800;margin:28px 0 12px;padding-left:14px;border-left:4px solid #00acc1}
.body h3:first-child{margin-top:0}
.body p{font-size:15.5px;color:#42546a;line-height:1.95;margin-bottom:14px}
.body img{width:100%;border-radius:10px;margin:18px 0}
/* 文章 */
.article{max-width:860px;margin:0 auto}
.ahead{border-bottom:2px solid #e3ebf3;padding-bottom:22px;margin-bottom:26px}
.ahead h1{font-size:32px;font-weight:800;color:#0d3463;margin-bottom:12px;line-height:1.35}
.ahead .meta{font-size:13px;color:#9aacbe}
.prevnext{display:flex;justify-content:space-between;border-top:2px solid #e3ebf3;margin-top:38px;padding-top:20px;font-size:14px;font-weight:600}
.prevnext a:hover{color:#1565c0}
/* 联系 */
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:44px;max-width:1060px;margin:0 auto}
.ci{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid #eaf0f6;align-items:center}
.ci .ic{width:50px;height:50px;flex:none;background:linear-gradient(135deg,#eef4fb,#e1f5f7);color:#1565c0;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px}
.ci .k{font-size:12px;color:#9aacbe}
.ci .v{font-size:17px;color:#0d3463;font-weight:600}
.cform input,.cform textarea{width:100%;padding:13px 16px;border:1px solid #d6e0ea;border-radius:8px;margin-bottom:14px;font-family:inherit;font-size:14px}
.cform input:focus,.cform textarea:focus{outline:none;border-color:#00acc1}
.cform button{width:100%;padding:15px;border:none;border-radius:30px;background:#00acc1;color:#fff;font-size:15px;font-weight:700;cursor:pointer}
.cform button:hover{background:#0097a7}
/* 页脚 */
footer{background:#0d3463;color:#9fb6cf;padding:54px 0 30px}
.fcols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.fcols h4{color:#fff;margin-bottom:16px;font-size:16px}
.fbrand{font-size:24px;font-weight:800;color:#fff;margin-bottom:14px}
.fcols p,.fcols a{font-size:14px;line-height:2;color:#9fb6cf;display:block}
.fcols a:hover{color:#bff3f7}
.fbot{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:22px;font-size:13px;color:#7c98b6;text-align:center}
/* 动效 */
.reveal{opacity:0;transform:translateY(24px);transition:.8s}
.reveal.in{opacity:1;transform:none}
@media(max-width:980px){.grid,.grid.g3{grid-template-columns:repeat(2,1fr)}.counters .wrap{grid-template-columns:repeat(2,1fr)}.fcols{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
.nav{grid-template-columns:1fr auto}.nav .ml,.nav .mr{display:none}.mtog{display:block}
.hero::before,.phead::before,.band::before{clip-path:none}
.hero h1{font-size:32px}.phead h1{font-size:27px}.sh .en{font-size:42px}
.grid,.grid.g2,.grid.g3,.pd,.cgrid,.counters .wrap{grid-template-columns:1fr}
.ni{flex-direction:column;align-items:flex-start;gap:12px}.fcols{grid-template-columns:1fr}
}