:root{--blue:#0758b4;--navy:#102b48;--ink:#182b40;--muted:#64758a;--border:#dfe7ef;--light:#f3f7fb}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;color:var(--ink);background:white;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.container{width:min(1200px,calc(100% - 80px));margin:auto}header{height:90px;position:sticky;top:0;z-index:20;background:#fffffff5;border-bottom:1px solid var(--border);backdrop-filter:blur(15px)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand img{height:49px;width:37px;object-fit:contain}.brand span{font-size:25px;font-weight:700;letter-spacing:3px;color:#15485d}.brand small{display:block;font-size:8px;letter-spacing:2px;line-height:1.1;color:#627b8b}nav{display:flex;align-items:center;gap:29px;font-size:14px}nav a:hover,.text-link:hover{color:var(--blue)}.nav-contact{background:var(--blue);color:white;padding:11px 20px}.nav-contact:hover{background:#084786;color:white}.nav-contact span{margin-left:16px}.menu-toggle{display:none}.hero{position:relative;background:linear-gradient(110deg,#f0f6fc,#fbfdff 65%);overflow:hidden;padding-top:66px}.hero-grid{position:absolute;inset:0;background-image:linear-gradient(#1567c005 1px,transparent 1px),linear-gradient(90deg,#1567c005 1px,transparent 1px);background-size:48px 48px;pointer-events:none}.hero-inner{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:40px;position:relative}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--blue);margin:0 0 23px}.eyebrow>span{display:inline-block;width:7px;height:7px;background:var(--blue);border-radius:50%;margin-right:10px}h1{font-size:clamp(40px,4.1vw,62px);letter-spacing:2px;line-height:1.35;margin:0 0 22px;font-weight:700}h1 span{color:var(--blue)}.hero-description{color:var(--muted);font-size:16px;line-height:1.9}.hero-actions{display:flex;align-items:center;gap:27px;margin-top:30px}.button{background:var(--blue);color:white;padding:14px 23px;font-size:14px;display:inline-flex;gap:34px;align-items:center}.button:hover{background:#094380}.text-link{font-size:14px}.text-link span{margin-left:12px}.hero-tags{display:flex;gap:22px;font-size:12px;color:#667c91;margin-top:35px}.hero-tags span+span{border-left:1px solid #b6cadc;padding-left:22px}.hero-visual{position:relative;padding:15px 0 0 15px}.hero-visual:before{content:"";position:absolute;top:0;left:0;width:50%;height:60%;border-top:1px solid #91b5d7;border-left:1px solid #91b5d7}.hero-visual>img{width:100%;height:410px;object-fit:cover}.image-label{position:absolute;bottom:0;left:15px;right:0;background:linear-gradient(transparent,#0e3159e6);padding:70px 25px 25px;color:white}.image-label span{font-size:9px;letter-spacing:2px}.image-label strong{display:block;font-size:20px;margin-top:6px}.visual-note{position:absolute;top:40px;right:-16px;background:white;padding:10px 18px;font-size:11px;box-shadow:0 5px 30px #14385d14}.status-dot{display:inline-block;width:6px;height:6px;border-radius:100%;background:#2bba91;margin-right:8px}.stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0 32px;margin-top:56px;border-top:1px solid #d6e2ee}.stats>div{padding:0 34px;border-right:1px solid #d6e2ee}.stats>div:first-child{padding-left:0}.stats>div:last-child{border:0}.stats strong{font-size:38px;color:var(--blue);line-height:1.3;font-weight:500}.stats strong span{font-size:13px;margin-left:8px;color:#536d87}.stats p{font-size:12px;color:var(--muted);margin:6px 0 0}.section{padding:96px 0}h2{font-size:34px;line-height:1.5;margin:0 0 23px;letter-spacing:1px;font-weight:600}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.body-copy{font-size:14px;color:var(--muted);line-height:2.1}.about-caption{font-size:13px;color:var(--blue);border-top:1px solid var(--border);margin-top:28px;padding-top:22px}.about-caption span{margin:0 15px;color:#c0cddd}.credentials{padding:26px;background:var(--light);border:1px solid var(--border)}.section-topline{display:flex;justify-content:space-between;font-size:12px;margin-bottom:24px}.section-topline span:last-child{font-size:9px;color:#879aab;letter-spacing:1px}.credentials img{width:100%;mix-blend-mode:multiply}.credential-tags{display:flex;flex-wrap:wrap;gap:8px;margin:23px 0 13px}.credential-tags span{font-size:11px;background:white;padding:6px 11px;border:1px solid var(--border)}.credentials small{font-size:10px;color:#8c9ba9}.solutions{background:var(--light)}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:35px;margin-bottom:40px}.section-heading h2{margin-bottom:0}.section-heading>p{font-size:13px;color:var(--muted);margin:0 0 4px}.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.solution-card{background:white;padding:30px;display:flex;flex-direction:column;border:1px solid var(--border)}.card-number{font-size:10px;color:#8093a6;letter-spacing:1px}.line-icon{font-size:38px;margin:20px 0 7px;color:var(--blue);height:60px}.solution-card h3{font-size:23px;margin:0 0 15px}.solution-card p,.solution-card li{font-size:13px;color:var(--muted)}.solution-card p{margin:0 0 18px}.solution-card ul{list-style:none;padding:0;margin:0 0 32px}.solution-card li{padding:5px 0}.solution-card li:before{content:"—";margin-right:8px;color:#7fa4c7}.solution-card>a{margin-top:auto;border-top:1px solid 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var(--border);background:#f7f9fc}.incubator-card>img{width:100%;height:190px;object-fit:cover}.incubator-card>div{padding:28px}.incubator-card .eyebrow{font-size:10px;margin-bottom:14px}.incubator-card p:not(.eyebrow){color:var(--muted)}.incubator-bottom{display:flex;gap:20px;border-top:1px solid var(--border);padding-top:19px;margin-top:25px;font-size:12px;color:var(--blue)}.history{background:var(--light)}.timeline{display:grid;grid-template-columns:repeat(5,1fr);padding-top:24px}.timeline article{position:relative;padding-right:26px}.timeline strong{font-size:22px;color:var(--blue);font-weight:500;display:block;margin-bottom:24px}.timeline-dot{height:1px;background:#c8d9e8;display:block;position:relative;margin-bottom:24px}.timeline-dot:before{content:"";position:absolute;left:0;top:-4px;height:8px;width:8px;border:2px solid var(--blue);border-radius:50%;background:var(--light)}.timeline h3{font-size:15px;margin:0 0 9px}.timeline p{font-size:12px;color:var(--muted);padding-right:8px}.contact{background:#0a3b6d;color:white;padding:75px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px}.contact .eyebrow{color:#86bbed}.contact h2{font-size:38px}.contact-grid>div>p{color:#b5cce3;font-size:13px}.contact-details{padding-top:10px}.contact-details>div{padding:16px 0;border-bottom:1px solid #ffffff26;display:grid;grid-template-columns:90px 1fr;align-items:start;gap:18px}.contact-details>div>span{font-size:12px;color:#a7c3df;padding-top:7px}.contact-details a{font-size:30px;line-height:1.5}.contact-details small{font-size:20px;float:right}.contact-details p{margin:4px 0;font-size:14px}footer{background:#082e54;color:#9fb6cd;padding:32px 0 22px}.footer-brand{color:white;font-size:19px;letter-spacing:2px;margin-bottom:25px}.footer-brand>span{font-size:11px;color:#9fb6cd;letter-spacing:1px;margin-left:24px}.footer-bottom{border-top:1px solid #ffffff15;padding-top:20px;display:flex;gap:28px;align-items:center;font-size:11px}.footer-bottom>a:last-child{margin-left:auto}.footer-bottom a:hover{color:white;text-decoration:underline}a:focus-visible,button:focus-visible{outline:3px solid #ffaf41;outline-offset:5px}
@media(min-width:1500px){.hero{padding-top:80px}.hero-visual>img{height:450px}}
@media(max-width:1000px){.container{width:calc(100% - 48px)}nav{gap:17px;font-size:12px}.hero-inner{gap:24px}h1{font-size:43px}.hero-visual>img{height:390px}.about-grid{gap:40px}.section{padding:70px 0}.solution-card{padding:23px}.ecosystem h3{font-size:21px}.timeline strong{font-size:18px}.contact-grid{gap:40px}.stats>div{padding:0 22px}}
@media(max-width:760px){html{scroll-padding-top:78px}.container{width:calc(100% - 40px)}header{height:76px}.brand span{font-size:22px}.brand img{height:43px;width:32px}.menu-toggle{display:block;border:0;background:var(--light);color:var(--navy);font-size:22px;padding:4px 13px}nav{display:none;position:absolute;top:76px;left:0;right:0;background:white;box-shadow:0 10px 20px #12345616;padding:15px 20px;flex-direction:column;align-items:stretch;gap:0}nav.is-open{display:flex}nav a{padding:12px 10px;font-size:14px}.nav-contact{margin:6px 0}.hero{padding-top:40px}.hero-inner{grid-template-columns:1fr;gap:35px}.eyebrow{font-size:10px;margin-bottom:18px}h1{font-size:42px}.hero-description{font-size:14px}.hero-actions{gap:22px}.hero-tags{margin-top:25px}.hero-visual{margin-right:8px}.hero-visual>img{height:300px}.visual-note{right:-8px}.stats{grid-template-columns:1fr 1fr;margin-top:34px;padding:22px 0;gap:22px 0}.stats>div{padding:0 18px!important}.stats>div:nth-child(odd){padding-left:0!important}.stats>div:nth-child(even){border-right:0}.stats strong{font-size:30px}.stats strong span{font-size:11px}.stats p{font-size:11px}.section{padding:58px 0}h2{font-size:28px}.about-grid,.solution-grid,.ecosystem,.contact-grid{grid-template-columns:1fr;gap:25px}.about-grid{gap:35px}.section-heading{display:block;margin-bottom:28px}.section-heading>p{margin-top:18px}.solution-card{padding:27px}.line-icon{margin-top:12px}.solution-card ul{margin-bottom:22px}.open-copy{padding:0 25px 25px}.open-card>img{width:calc(100% - 50px)}.incubator-card>img{height:160px}.timeline{grid-template-columns:1fr;padding-top:5px}.timeline article{padding:0 0 24px 26px;border-left:1px solid #c8d9e8}.timeline strong{font-size:23px;margin-bottom:6px}.timeline-dot{position:absolute;top:15px;left:0;width:0;margin:0}.timeline-dot:before{left:-6px}.timeline h3{font-size:16px;margin-bottom:3px}.timeline p{margin:0;font-size:13px}.contact{padding:52px 0}.contact h2{font-size:32px}.contact-details{padding-top:0}.contact-details>div{grid-template-columns:70px 1fr;gap:15px}.contact-details a{font-size:26px}.contact-details p{font-size:13px}.footer-brand>span{display:block;margin:8px 0 0;font-size:10px}.footer-bottom{flex-wrap:wrap;gap:12px 24px}.footer-bottom>span{width:100%}.footer-bottom>a:last-child{margin-left:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* 页脚三项同一行垂直居中，备案号保持水平正中。 */
.footer-bottom{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px 24px}
.footer-bottom>span{grid-column:1;grid-row:1}
.footer-bottom>a[href="https://beian.mit.gov.cn"]{grid-column:2;grid-row:1;justify-self:center;text-align:center}
.footer-bottom>a:last-child{grid-column:3;grid-row:1;justify-self:end;margin-left:0}
@media(max-width:760px){.footer-bottom{grid-template-columns:1fr;gap:12px}.footer-bottom>span{grid-column:1;grid-row:1;text-align:center}.footer-bottom>a[href="https://beian.mit.gov.cn"]{grid-column:1;grid-row:2}.footer-bottom>a:last-child{grid-column:1;grid-row:3;justify-self:center}}