:root{--paper:#f7f9fc;--ink:#141b2d;--blue:#345cf6;--line:#dde3ed;--muted:#757f91;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}.seo-shell{max-width:1220px;margin:auto;padding-left:5.5%;padding-right:5.5%}.seo-header{height:88px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:40;background:rgba(247,249,252,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);padding:0 4.5%}.seo-brand{width:205px}.seo-brand img{width:100%;display:block}.seo-nav{display:flex;gap:22px;align-items:center}.seo-nav a{font-size:13px;color:#5f6878;padding:10px 0;white-space:nowrap}.seo-nav a:hover,.seo-nav a[aria-current=page]{color:var(--blue)}.seo-nav .home-link{margin-left:8px;padding:10px 14px;border:1px solid #ccd4e2;border-radius:4px}.seo-menu{display:none;border:0;background:none;font-size:24px}.seo-mobile{display:none}.seo-hero{padding-top:92px;padding-bottom:86px;display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.breadcrumb{font-size:11px;color:#8791a2;letter-spacing:.04em;margin-bottom:28px}.breadcrumb a:hover{color:var(--blue)}.seo-eyebrow{font-size:11px;letter-spacing:.13em;color:#66779a}.seo-hero h1{font-size:clamp(48px,5vw,72px);line-height:1.2;letter-spacing:-.055em;font-weight:500;margin:24px 0}.seo-hero h1 span{color:#8b92a0}.seo-lead{font-size:17px;color:#6e7788;line-height:1.9;max-width:690px}.seo-actions{display:flex;gap:12px;align-items:center;margin-top:32px;flex-wrap:wrap}.seo-button{display:inline-flex;align-items:center;justify-content:space-between;gap:34px;padding:14px 18px;border-radius:5px;border:1px solid #ccd4e2;background:white;color:#354056;font-size:13px;-webkit-appearance:none;appearance:none}.seo-button.primary{background:var(--blue);color:white;border-color:var(--blue)}.seo-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px}.seo-tags span{font-size:11px;color:#667184;padding:5px 10px;border:1px solid var(--line);background:#fff;border-radius:3px}.seo-art{min-height:410px;border:1px solid #e0e6ef;background:#eef3ff;border-radius:12px;position:relative;overflow:hidden;padding:30px;display:flex;align-items:center;justify-content:center}.seo-art:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;border:1px solid #b8c8ff;box-shadow:0 0 0 42px #345cf608,0 0 0 90px #345cf605}.seo-art-grid{position:relative;z-index:2;width:82%;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.seo-art-grid span{background:#fff;border:1px solid #d9e1ef;border-radius:7px;padding:16px 14px;font-size:12px;color:#52627c;box-shadow:0 12px 30px #345cf60a}.seo-art-grid span:first-child{grid-column:1/-1;background:#162036;color:white;border-color:#162036;font-size:15px}.seo-strip{background:#111827;color:#d8deeb}.seo-strip .seo-shell{display:grid;grid-template-columns:repeat(5,1fr);padding-top:24px;padding-bottom:24px}.seo-strip span{font-size:11px;letter-spacing:.04em;padding:0 18px;border-right:1px solid #ffffff1c}.seo-strip span:first-child{padding-left:0}.seo-strip span:last-child{border-right:0}.seo-section{padding-top:95px;padding-bottom:95px;background:#fff;border-bottom:1px solid var(--line)}.seo-section.alt{background:var(--paper)}.seo-heading{display:grid;grid-template-columns:1fr .8fr;gap:60px;align-items:end;margin-bottom:48px}.seo-heading small{font-size:10px;letter-spacing:.12em;color:#72809d}.seo-heading h2{font-size:40px;line-height:1.35;letter-spacing:-.04em;font-weight:500;margin:12px 0 0}.seo-heading p{color:#737d8d;margin:0;line-height:1.9}.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);background:#fff}.scenario{padding:30px 26px;min-height:210px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.scenario:nth-child(3n){border-right:0}.scenario:nth-last-child(-n+3){border-bottom:0}.scenario b{display:block;font-size:20px;font-weight:500;margin-bottom:14px}.scenario p{margin:0;color:#747e8e;font-size:14px;line-height:1.85}.seo-process{background:#111827;padding:78px 0}.seo-process h2{color:white;font-size:38px;font-weight:500;letter-spacing:-.04em;margin:0 0 38px}.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid #ffffff22}.process-card{padding:28px 22px;border-right:1px solid #ffffff18}.process-card:last-child{border-right:0}.process-card small{color:#6f83b2;font-size:10px}.process-card b{display:block;color:white;font-size:18px;font-weight:500;margin:18px 0 10px}.process-card p{color:#a8b1c2;font-size:13px;margin:0;line-height:1.75}.tech-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}.deliver-list{display:grid;gap:0;border-top:1px solid var(--line)}.deliver-list span{padding:17px 0;border-bottom:1px solid var(--line);font-size:15px}.tech-cloud{display:flex;gap:9px;flex-wrap:wrap}.tech-cloud span{padding:10px 13px;background:#fff;border:1px solid var(--line);border-radius:4px;color:#536077;font-size:13px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;list-style:none;padding:22px 4px;font-size:17px;font-weight:500;display:flex;justify-content:space-between;gap:30px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";font-size:21px;color:#75819a}.faq-list details[open] summary:after{content:"−"}.faq-list p{color:#707a8a;margin:0;padding:0 38px 24px 4px;max-width:880px}.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.related-card{border:1px solid var(--line);background:#fff;padding:23px;min-height:120px;display:flex;flex-direction:column;justify-content:space-between;transition:transform .2s,border-color .2s}.related-card:hover{transform:translateY(-3px);border-color:#9fb2e6}.related-card small{font-size:9px;color:#8490a5;letter-spacing:.1em}.related-card b{font-size:17px;font-weight:500}.seo-cta{background:#eaf0ff;padding:72px 0}.seo-cta .seo-shell{display:flex;justify-content:space-between;align-items:center;gap:40px}.seo-cta h2{font-size:38px;line-height:1.35;font-weight:500;margin:0}.seo-cta p{color:#6f7a8e;margin:12px 0 0}.seo-footer{padding:42px 0 28px}.seo-footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px}.seo-footer .seo-brand{width:178px}.seo-footer-slogan{font-size:13px;color:#68748a}.seo-footer-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}.seo-footer-links a{font-size:11px;color:#758095}.seo-footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:24px;color:#9299a5;font-size:10px}.seo-modal[hidden]{display:none}.seo-modal{position:fixed;inset:0;z-index:100;background:#0007;display:grid;place-items:center;padding:20px}.seo-modal-panel{width:min(760px,100%);max-height:92vh;overflow:auto;background:#fbfcff;border-radius:9px;padding:34px;position:relative}.seo-close{position:absolute;right:18px;top:16px;width:38px;height:38px;border:1px solid var(--line);background:white;border-radius:50%;font-size:24px}.seo-modal h2{font-size:32px;font-weight:500;margin:15px 0 8px}.seo-modal-panel>p{color:#758095}.seo-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.seo-modal label{display:grid;gap:7px;color:#667184;font-size:12px}.seo-modal input,.seo-modal select,.seo-modal textarea{width:100%;border:1px solid #d8e0ec;background:white;border-radius:5px;padding:12px 13px;font:14px/1.5 var(--font);color:#202a3c}.seo-modal textarea{min-height:120px;resize:vertical}.seo-form-message{margin-top:16px}.seo-form-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:22px;border-top:1px solid var(--line);padding-top:20px}.seo-status{font-size:12px;color:#607089}.seo-honeypot{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important}
@media(max-width:980px){.seo-nav{display:none}.seo-menu{display:block}.seo-mobile.is-open{display:flex;position:fixed;top:88px;left:0;right:0;z-index:39;background:var(--paper);border-bottom:1px solid var(--line);padding:20px 5.5%;flex-direction:column}.seo-mobile a{padding:10px 0}.seo-hero{grid-template-columns:1fr;gap:35px;padding-top:58px}.seo-art{min-height:300px}.scenario-grid{grid-template-columns:1fr 1fr}.scenario:nth-child(3n){border-right:1px solid var(--line)}.scenario:nth-child(2n){border-right:0}.scenario:nth-last-child(-n+3){border-bottom:1px solid var(--line)}.scenario:nth-last-child(-n+2){border-bottom:0}.process-grid{grid-template-columns:1fr 1fr}.process-card{border-bottom:1px solid #ffffff18}.related-grid{grid-template-columns:1fr 1fr}.seo-heading,.tech-wrap{grid-template-columns:1fr}.seo-strip .seo-shell{grid-template-columns:1fr;gap:7px}.seo-strip span{border:0;padding:0}.seo-cta .seo-shell{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){.seo-header{height:76px;padding:0 6%}.seo-brand{width:170px}.seo-mobile.is-open{top:76px}.seo-shell{padding-left:6%;padding-right:6%}.seo-hero{padding-top:44px;padding-bottom:60px}.seo-hero h1{font-size:42px}.seo-lead{font-size:15px}.seo-art{min-height:260px;padding:20px}.seo-art-grid{width:100%}.seo-section{padding-top:65px;padding-bottom:65px}.seo-heading{gap:18px;margin-bottom:32px}.seo-heading h2,.seo-process h2,.seo-cta h2{font-size:31px}.scenario-grid,.process-grid,.related-grid{grid-template-columns:1fr}.scenario{border-right:0!important;border-bottom:1px solid var(--line)!important;min-height:0}.scenario:last-child{border-bottom:0!important}.process-card{border-right:0}.related-card{min-height:100px}.seo-form-grid{grid-template-columns:1fr}.seo-form-actions{align-items:stretch;flex-direction:column}.seo-form-actions .seo-button{width:100%}.seo-footer-top{align-items:flex-start;flex-direction:column}.seo-footer-bottom{flex-direction:column}.seo-modal-panel{padding:30px 20px}.seo-cta{padding:55px 0}}

.seo-socials{display:flex;align-items:center;justify-content:center;gap:14px;padding:26px 0 30px;border-top:1px solid var(--line)}
.seo-social-icon{position:relative;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;color:#10131a;background:transparent;border:0;border-radius:0;box-shadow:none;transition:color .2s ease,transform .2s ease,opacity .2s ease;cursor:default}
.seo-social-icon svg{width:24px;height:24px;fill:currentColor;display:block}
.seo-social-icon:hover{color:var(--blue);transform:translateY(-2px);box-shadow:none;opacity:.9}
.seo-social-icon::after{content:attr(data-label);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translate(-50%,4px);padding:5px 8px;border-radius:6px;background:#111827;color:#fff;font-size:10px;line-height:1;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease}
.seo-social-icon:hover::after{opacity:1;transform:translate(-50%,0)}
.seo-social-wordmark{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-weight:700;letter-spacing:-.05em}.seo-social-wordmark>span{white-space:nowrap}.seo-channels{font-size:10px}.seo-rednote{font-size:9px}.seo-zhihu{font-size:11px;letter-spacing:-.02em}
@media(max-width:760px){.seo-socials{gap:12px;flex-wrap:wrap;padding:24px 0 28px}.seo-social-icon{width:32px;height:32px;border-radius:0}.seo-social-icon svg{width:23px;height:23px}.seo-social-icon::after{display:none}}

.seo-social-domestic svg{width:24px;height:24px;fill:none}


/* v14 inline SVG domestic brand marks */
.seo-social-icon-xiaohongshu{width:50px}
.seo-social-icon-xiaohongshu .brand-xhs-wordmark{width:50px;height:20px;display:block;overflow:visible}
.seo-social-icon-videochannel{color:#111318}
.seo-social-icon-videochannel .brand-channels{width:28px;height:28px;display:block}
.seo-social-icon-xiaohongshu:hover .brand-xhs-wordmark{opacity:.9}
@media(max-width:760px){.seo-social-icon-xiaohongshu{width:48px}.seo-social-icon-xiaohongshu .brand-xhs-wordmark{width:48px;height:19px}.seo-social-icon-videochannel .brand-channels{width:27px;height:27px}}