*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{overflow-x:hidden;font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;font-size:15px;line-height:1.8;color:#0d2238;background:#ffffff}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;border:0}
ul,ol{list-style:none}
table{border-collapse:collapse;width:100%}
input,textarea,select,button{font-family:inherit;font-size:14px}
.qx4-wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.qx4-top{background:#072a49;color:#bcd3e6;font-size:13px;line-height:34px}
.qx4-top .qx4-wrap{display:flex;justify-content:space-between;align-items:center;gap:12px}
.qx4-top-l span{margin-right:20px}
.qx4-top-r{display:flex;gap:18px;color:#8fb6d2}
.qx4-hd{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid #dfe7ef;box-shadow:0 6px 18px rgba(10,58,99,.06)}
.qx4-hd-in{display:flex;align-items:center;justify-content:space-between;height:78px;gap:16px}
.qx4-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.qx4-brand img{height:44px;width:auto}
.qx4-brand-t{line-height:1.25}
.qx4-brand-t b{display:block;font-size:19px;letter-spacing:1px;color:#0a3a63}
.qx4-brand-t i{display:block;font-style:normal;font-size:10px;letter-spacing:2px;color:#7b8fa2;text-transform:uppercase}
.qx4-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:flex-end}
.qx4-nav a{padding:10px 12px;font-size:15px;color:#243b52;border-bottom:2px solid transparent;white-space:nowrap}
.qx4-nav a:hover{color:#1789b8;border-color:#1789b8}
.qx4-nav a.is-on{color:#0a3a63;font-weight:700;border-color:#0a3a63}
.qx4-cta{display:inline-block;background:#c33422;color:#fff;padding:10px 18px;border-radius:2px;font-size:14px;white-space:nowrap}
.qx4-cta:hover{background:#a72a1b}
.qx4-burger{display:none;width:42px;height:42px;border:1px solid #cfdbe6;background:#fff;border-radius:2px}
.qx4-burger span{display:block;width:18px;height:2px;background:#0a3a63;margin:3px auto}
.qx4-hero{position:relative;color:#fff;overflow:hidden;background:#072a49}
.qx4-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.75}
.qx4-hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(5,30,52,.9) 0%,rgba(7,42,73,.74) 48%,rgba(9,50,84,.38) 100%)}
.qx4-hero-in{position:relative;padding:74px 22px 62px;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,.85fr);gap:44px;align-items:center}
.qx4-hero h1{font-size:38px;line-height:1.35;font-weight:700;letter-spacing:.5px;overflow-wrap:break-word}
.qx4-hero p.qx4-lead{margin-top:18px;font-size:16px;line-height:2;color:#d5e4f0;max-width:660px}
.qx4-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.qx4-tags a{border:1px solid rgba(255,255,255,.32);padding:6px 14px;font-size:13px;color:#e6f1f8;border-radius:20px}
.qx4-tags a:hover{background:rgba(255,255,255,.12)}
.qx4-hero-btns{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.qx4-btn{display:inline-block;padding:13px 26px;font-size:15px;border-radius:2px;border:1px solid transparent}
.qx4-btn-r{background:#c33422;color:#fff}
.qx4-btn-r:hover{background:#a72a1b}
.qx4-btn-o{border-color:rgba(255,255,255,.55);color:#fff}
.qx4-btn-o:hover{background:rgba(255,255,255,.14)}
.qx4-hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);padding:26px 24px}
.qx4-hero-card h3{font-size:16px;font-weight:600;letter-spacing:1px;color:#ffffff}
.qx4-hero-card table{margin-top:12px;font-size:13px;color:#d9e7f2}
.qx4-hero-card td{padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.18)}
.qx4-hero-card td:last-child{text-align:right;color:#fff;font-weight:600}
.qx4-stats{position:relative;background:#0a3a63;color:#fff}
.qx4-stats .qx4-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16)}
.qx4-stats div{background:#0a3a63;padding:24px 18px;text-align:center}
.qx4-stats b{display:block;font-size:30px;color:#7ec8ea;font-weight:700}
.qx4-stats span{font-size:13px;color:#cfe1ee}
.qx4-sec{padding:66px 0}
.qx4-sec-alt{background:#f4f7fa}
.qx4-sec-hd{margin-bottom:36px;max-width:820px}
.qx4-sec-hd small{display:inline-block;font-size:12px;letter-spacing:2px;color:#1789b8;border-left:3px solid #1789b8;padding-left:10px;text-transform:uppercase}
.qx4-sec-hd h2{font-size:28px;line-height:1.4;margin-top:12px;color:#0a3a63}
.qx4-sec-hd p{margin-top:12px;color:#5a6b7d;font-size:15px}
.qx4-sec-hd-mid{text-align:center;margin-left:auto;margin-right:auto}
.qx4-sec-hd-mid small{border-left:0;border-bottom:3px solid #1789b8;padding:0 0 6px 0}
.qx4-pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.qx4-pcard{background:#fff;border:1px solid #e3eaf1;display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}
.qx4-pcard:hover{box-shadow:0 14px 30px rgba(10,58,99,.13);transform:translateY(-3px)}
.qx4-pcard-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#eef3f7}
.qx4-pcard-img img{width:100%;height:100%;object-fit:cover}
.qx4-pcard-body{padding:18px 18px 20px;flex:1 1 auto}
.qx4-pcard-body h3{font-size:17px;line-height:1.5;color:#0a3a63;font-weight:700}
.qx4-pcard-body .qx4-pmeta{margin-top:8px;font-size:13px;color:#6b7d8f;min-height:44px}
.qx4-pcard-body .qx4-pmore{margin-top:14px;font-size:13px;color:#c33422;letter-spacing:1px}
.qx4-tbl{font-size:14px}
.qx4-tbl th,.qx4-tbl td{border:1px solid #dbe4ec;padding:11px 14px;text-align:left;vertical-align:top}
.qx4-tbl th{background:#eef4f9;color:#0a3a63;font-weight:600;white-space:nowrap}
.qx4-tbl tr:nth-child(even) td{background:#fafcfd}
.qx4-note{margin-top:12px;font-size:13px;color:#7b8fa2}
.qx4-why{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.qx4-why-i{border-top:3px solid #0a3a63;background:#fff;padding:22px 22px 24px}
.qx4-why-i em{font-style:normal;display:block;font-size:26px;color:#c8d8e5;font-weight:700;letter-spacing:1px}
.qx4-why-i h3{margin-top:6px;font-size:17px;color:#0a3a63}
.qx4-why-i p{margin-top:8px;font-size:14px;color:#5a6b7d}
.qx4-sol{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#dbe4ec;border:1px solid #dbe4ec}
.qx4-sol-i{background:#fff;padding:28px 24px}
.qx4-sol-i h3{font-size:17px;color:#0a3a63}
.qx4-sol-i p{margin-top:10px;font-size:14px;color:#5a6b7d}
.qx4-sol-i ul{margin-top:12px;font-size:13px;color:#6b7d8f}
.qx4-sol-i li{padding-left:14px;position:relative;line-height:2}
.qx4-sol-i li:before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;background:#1789b8}
.qx4-tl{border-left:2px solid #dbe4ec;margin-left:8px;padding-left:26px}
.qx4-tl-i{position:relative;padding-bottom:24px}
.qx4-tl-i:before{content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:#1789b8;border:3px solid #fff;box-shadow:0 0 0 2px #dbe4ec}
.qx4-tl-i b{color:#c33422;font-size:16px}
.qx4-tl-i p{margin-top:2px;color:#41566b;font-size:14px}
.qx4-tech{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.qx4-tech-i{display:grid;grid-template-columns:112px 1fr;gap:18px;background:#fff;border:1px solid #e3eaf1;padding:18px}
.qx4-tech-i img{width:112px;height:84px;object-fit:cover}
.qx4-tech-i h3{font-size:16px;color:#0a3a63}
.qx4-tech-i p{margin-top:6px;font-size:13px;color:#5a6b7d}
.qx4-news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.qx4-ncard{background:#fff;border:1px solid #e3eaf1;display:flex;flex-direction:column}
.qx4-ncard img{width:100%;aspect-ratio:16/10;object-fit:cover}
.qx4-ncard-b{padding:16px 18px 18px}
.qx4-ncard-b time{font-size:12px;color:#8a9aab;letter-spacing:1px}
.qx4-ncard-b h3{margin-top:6px;font-size:15px;line-height:1.6;color:#12324f}
.qx4-ncard:hover h3{color:#1789b8}
.qx4-faq{border-top:1px solid #dbe4ec}
.qx4-faq details{border-bottom:1px solid #dbe4ec;padding:16px 0}
.qx4-faq summary{cursor:pointer;font-size:16px;color:#0a3a63;font-weight:600;list-style:none}
.qx4-faq summary::-webkit-details-marker{display:none}
.qx4-faq summary:before{content:"+";display:inline-block;width:22px;color:#1789b8;font-weight:700}
.qx4-faq details[open] summary:before{content:"-"}
.qx4-faq p{margin:10px 0 0 22px;color:#5a6b7d;font-size:14px}
.qx4-logos{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.qx4-logos span{background:#fff;border:1px solid #e3eaf1;text-align:center;padding:16px 8px;font-size:13px;color:#41566b}
.qx4-crumb{background:#f4f7fa;border-bottom:1px solid #e3eaf1;font-size:13px;color:#7b8fa2;line-height:44px}
.qx4-crumb a:hover{color:#1789b8}
.qx4-page-hd{background:linear-gradient(120deg,#072a49,#0b4573);color:#fff;padding:54px 0}
.qx4-page-hd h1{font-size:32px;line-height:1.4}
.qx4-page-hd p{margin-top:12px;color:#cfe1ee;max-width:780px;font-size:15px}
.qx4-main{padding:56px 0 70px}
.qx4-grid-2{display:grid;grid-template-columns:1fr .62fr;gap:44px;align-items:start}
.qx4-article h2{font-size:22px;color:#0a3a63;margin:34px 0 12px;padding-left:12px;border-left:4px solid #1789b8}
.qx4-article h3{font-size:17px;color:#12324f;margin:22px 0 8px}
.qx4-article p{margin-bottom:14px;color:#33475b}
.qx4-article ul,.qx4-article ol{margin:0 0 16px 0}
.qx4-article li{padding-left:18px;position:relative;margin-bottom:8px;color:#33475b}
.qx4-article li:before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:#1789b8;transform:rotate(45deg)}
.qx4-article figure{margin:22px 0}
.qx4-article figure img{width:100%}
.qx4-article figcaption{font-size:12px;color:#8a9aab;margin-top:8px;text-align:center}
.qx4-side{position:sticky;top:100px}
.qx4-side-box{background:#fff;border:1px solid #e3eaf1;padding:22px;margin-bottom:22px}
.qx4-side-box h4{font-size:16px;color:#0a3a63;padding-bottom:10px;border-bottom:2px solid #0a3a63}
.qx4-side-box ul{margin-top:12px}
.qx4-side-box li{padding:9px 0;border-bottom:1px dashed #e3eaf1;font-size:13px;color:#41566b}
.qx4-side-box li a:hover{color:#1789b8}
.qx4-side-cta{background:#0a3a63;color:#fff;padding:24px;margin-bottom:22px}
.qx4-side-cta b{display:block;font-size:20px;color:#7ec8ea}
.qx4-side-cta span{display:block;font-size:13px;color:#cfe1ee;margin-top:6px}
.qx4-side-cta a{display:block;margin-top:14px;background:#c33422;text-align:center;padding:10px;font-size:14px}
.qx4-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.qx4-form .qx4-full{grid-column:1/-1}
.qx4-form label{display:block;font-size:13px;color:#5a6b7d;margin-bottom:5px}
.qx4-form input,.qx4-form textarea,.qx4-form select{width:100%;border:1px solid #cfdbe6;padding:10px 12px;border-radius:2px;background:#fff}
.qx4-form textarea{min-height:104px;resize:vertical}
.qx4-form button{background:#c33422;color:#fff;border:0;padding:12px 26px;font-size:15px;cursor:pointer;border-radius:2px}
.qx4-form-msg{margin-top:12px;font-size:13px;color:#c33422}
.qx4-spec{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:18px 0 8px}
.qx4-spec-i{background:#fff;border:1px solid #e3eaf1;padding:18px}
.qx4-spec-i span{font-size:12px;color:#8a9aab;letter-spacing:1px}
.qx4-spec-i b{display:block;margin-top:6px;font-size:18px;color:#0a3a63}
.qx4-spec-i p{font-size:13px;color:#6b7d8f;margin-top:4px}
.qx4-list-item{display:grid;grid-template-columns:92px 1fr 150px;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid #e3eaf1}
.qx4-list-item time{background:#f4f7fa;border:1px solid #e3eaf1;text-align:center;padding:10px 0}
.qx4-list-item time b{display:block;font-size:22px;color:#0a3a63;line-height:1.2}
.qx4-list-item time i{font-style:normal;font-size:12px;color:#8a9aab}
.qx4-list-item h3{font-size:17px;color:#12324f}
.qx4-list-item p{font-size:13px;color:#6b7d8f;margin-top:4px}
.qx4-list-item .qx4-thumb{width:150px;height:96px;object-fit:cover;display:none}
.qx4-list-item a.qx4-detail{font-size:13px;color:#c33422;text-align:right}
.qx4-bt{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
.qx4-bt h4{font-size:15px;color:#ffffff;margin-bottom:14px}
.qx4-bt p,.qx4-bt li{font-size:13px;color:#a9c3d8;line-height:2}
.qx4-ft{background:#072a49;color:#a9c3d8;padding:46px 0 0}
.qx4-ft-b{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding:16px 0;font-size:12px;color:#7f9cb3;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.qx4-totop{position:fixed;right:22px;bottom:26px;width:44px;height:44px;background:#0a3a63;color:#fff;text-align:center;line-height:44px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:70}
.qx4-totop.is-on{opacity:1;pointer-events:auto}
.qx4-mask{background:#f4f7fa;border:1px solid #e3eaf1;padding:26px;margin:22px 0}
.qx4-mask h3{font-size:17px;color:#0a3a63;margin-bottom:10px}
@media(max-width:1080px){
.qx4-hero-in{grid-template-columns:minmax(0,1fr);gap:30px;padding:56px 22px 48px}
.qx4-hero h1{font-size:30px}
.qx4-pgrid{grid-template-columns:repeat(3,1fr)}
.qx4-grid-2{grid-template-columns:1fr}
.qx4-side{position:static}
}
@media(max-width:900px){
.qx4-top-r{display:none}
.qx4-top-l span:first-child{display:none}
.qx4-nav{display:none;position:absolute;left:0;right:0;top:78px;background:#fff;flex-direction:column;align-items:stretch;border-bottom:1px solid #dfe7ef;box-shadow:0 14px 22px rgba(10,58,99,.1);padding:8px 0}
.qx4-nav.is-open{display:flex}
.qx4-nav a{padding:12px 22px;border-bottom:1px solid #f0f4f8}
.qx4-burger{display:block}
.qx4-cta{display:none}
.qx4-why,.qx4-sol,.qx4-news,.qx4-spec,.qx4-logos{grid-template-columns:repeat(2,1fr)}
.qx4-tech{grid-template-columns:1fr}
.qx4-bt{grid-template-columns:1fr;gap:24px}
.qx4-hero-card{display:none}
}
@media(max-width:640px){
.qx4-wrap{padding:0 16px}
.qx4-hero-in{padding:44px 16px 40px}
.qx4-top-r{display:none}
.qx4-tbl th{white-space:normal}
.qx4-brand img{height:36px}
.qx4-brand-t b{font-size:16px}
.qx4-brand-t i{display:none}
.qx4-hero h1{font-size:24px}
.qx4-hero p.qx4-lead{font-size:14px}
.qx4-sec{padding:44px 0}
.qx4-sec-hd h2{font-size:22px}
.qx4-pgrid,.qx4-why,.qx4-sol,.qx4-news,.qx4-spec,.qx4-logos{grid-template-columns:1fr}
.qx4-stats .qx4-wrap{grid-template-columns:repeat(2,1fr)}
.qx4-list-item{grid-template-columns:66px 1fr;gap:14px}
.qx4-list-item a.qx4-detail{display:none}
.qx4-form{grid-template-columns:1fr}
.qx4-page-hd h1{font-size:24px}
.qx4-tbl{font-size:13px}
.qx4-tbl th,.qx4-tbl td{padding:8px 9px}
}