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.contact-band{background:#eaf4fc;border-block:1px solid #d7e7f3;padding:72px 0}.contact-band-inner{display:grid;grid-template-columns:1fr .85fr;gap:120px;align-items:center}.contact-band .eyebrow{font-size:13px}.contact-band h2{font-size:45px;line-height:1.4;margin-bottom:20px}.contact-band p{font-size:15px;color:var(--muted);line-height:1.9}.contact-mail{font:16px/1.8 var(--font);color:var(--blue-dark);border-bottom:1px solid #a0c9e6}.contact-choices{display:grid;gap:12px}.phone-contact{position:relative;display:block;padding:25px 28px;border-bottom:1px solid #b5cfdf;background:transparent}.contact-choices span{display:block;font-size:14px;color:#567990;margin-bottom:5px}.contact-choices strong{display:block;font:500 36px/1.4 var(--font);color:var(--ink);letter-spacing:-.03em}.phone-contact>b{position:absolute;right:26px;top:39px;color:var(--blue);font-size:28px;font-weight:400}.wechat-card{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;gap:18px}.wechat-card strong{font-size:28px}.wechat-card small{display:block;color:#728a9f;font-size:13px;margin-top:5px}.copy-button{border:1px solid #9bbbd3;border-radius:5px;padding:9px 13px;background:transparent;color:#2e5a7b;font-size:14px;white-space:nowrap;transition:background .2s}.copy-button:hover{background:white}.copy-status{font-size:14px!important;min-height:20px;margin:0 28px!important}.site-footer{padding:64px 0 22px;background:#fff;color:var(--muted)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr .9fr 1.25fr;gap:55px}.footer-grid .logo-footer{display:inline-flex;margin:0 0 18px}.logo-footer img{width:170px}.footer-grid p{font-size:14px;line-height:1.9;margin:13px 0}.footer-location{font:12px/1.8 var(--font);letter-spacing:.12em;color:#70889d}.footer-grid h2{font-size:14px;color:var(--ink);margin:6px 0 20px;font-weight:600;letter-spacing:0}.footer-grid a:not(.logo){display:block;margin:7px 0;font-size:14px;transition:color .2s}.footer-grid a:hover{color:var(--blue-dark)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:42px;border-top:1px solid #e7edf2;padding-top:20px;font-size:13px;color:#7e93a4}.back-top{position:fixed;bottom:24px;right:22px;z-index:25;width:40px;height:40px;border:1px solid #c5dbe9;display:grid;place-items:center;background:#ffffffed;color:var(--blue-dark);border-radius:6px;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s,transform .2s,visibility .2s}.back-top.is-visible{opacity:1;visibility:visible;transform:none}.noscript-note{position:relative;padding:12px 25px;text-align:center;font-size:14px;background:#fff4dc;color:#73551d}
/* Locally drawn schematics: no remote images, video players or trackers. */
.ad-mock{background:#fff;color:#233e55;border:1px solid #d8e4ed;border-radius:10px;overflow:hidden;position:relative;min-height:330px;font-family:var(--font);box-shadow:0 14px 40px #17395e08}.mock-browser{display:flex;align-items:center;gap:5px;height:30px;background:#f4f7fa;border-bottom:1px solid #e6edf2;padding:0 14px}.mock-browser>i{width:5px;height:5px;border-radius:50%;background:#c2d0db}.mock-browser>i:first-child{background:#edb474}.mock-browser>span{margin-left:auto;color:#8a9eaf;font-size:12px}.mock-searchbar{display:flex;justify-content:space-between;align-items:center;border:1px solid #dce6ed;border-radius:20px;padding:8px 17px;margin:20px 24px 15px;font-size:13px;color:#8296a8;background:white}.mock-searchbar b{font:21px/1 var(--font);color:#699ec6}.mock-result{position:relative;margin:0 24px;padding:16px 18px}.highlight-ad{border:1px solid #7cbce5!important;border-radius:6px;background:#eef7ff!important}.sponsored{display:block;color:#4d708c;font-size:12px;line-height:1.4;margin-bottom:9px;letter-spacing:.02em}.mock-result>strong{display:block;font-size:15px;line-height:1.6;font-weight:500;color:#1476bd}.mock-result>p{font-size:13px;color:#7590a6;margin:7px 0 9px}.mock-sitelinks{font-size:12px;color:#2488c8}.position-dot{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#0c92e9;color:white;font:12px/1 var(--font)}.mock-result>.position-dot{position:absolute;right:12px;top:11px}.mock-lines{display:grid;gap:6px}.mock-lines>i{display:block;height:4px;border-radius:3px;background:#e9eff4}.mock-lines>i:nth-child(2){width:84%}.mock-lines>i:nth-child(3){width:59%}.mock-search>.mock-lines{margin:19px 42px 0}.mock-result.faint{margin:12px 24px 0;padding-top:8px;padding-bottom:17px}.mock-result.faint>strong{font-size:13px;color:#879caf;margin-bottom:11px}.mock-label{font-size:12px;letter-spacing:.02em;color:#63819a;padding:11px 24px;background:#f7fafc;border-top:1px solid #e9eff4;text-align:center}.organic-result{background:#f3f8fc;border-left:2px solid #77b4d9}.mock-topline{display:flex;justify-content:space-between;align-items:center;margin:26px 24px 18px;gap:10px;font-size:14px}.mock-topline .sponsored{margin:0}.mock-products{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 24px 20px}.mock-product{position:relative;min-width:0;background:#f4f7fa;border:1px solid #e5ecf2;border-radius:6px;padding:12px 9px}.mock-product.selected{border-color:#6cb9e9;background:#eaf6ff}.mock-product>span{display:block;font-size:12px;margin:13px 0 5px;color:#5c768d}.mock-product>b{font-weight:500;font-size:12px;color:#1684cc}.product-shape{position:relative;height:95px;background:#e2ecf2;border-radius:4px;overflow:hidden}.product-shape:before{content:"";position:absolute;inset:20px 32%;border-radius:12px 12px 9px 9px;background:#83afc7;box-shadow:4px 7px 5px #3d64701a}.shape-1:after{content:"";position:absolute;width:19%;height:17px;border:4px solid #6899b4;border-bottom:0;top:11px;left:40%;border-radius:20px 20px 0 0}.shape-2{background:#efe3d2}.shape-2:before{background:#c39560;inset:39px 19% 16px;border-radius:12px 12px 3px 3px}.shape-2:after{content:"";position:absolute;left:26%;right:26%;top:21px;height:43px;background:#d3ad7f;border-radius:8px}.shape-3{background:#dfe8df}.shape-3:before{background:#699080;inset:23px 29% 16px;border-radius:4px 4px 13px 13px}.mock-shopping>.mock-lines{margin:0 25px 23px}.feed-layout{display:flex;gap:30px;align-items:center;justify-content:center;padding:25px 25px 22px}.mock-phone{position:relative;width:158px;height:278px;flex-shrink:0;background:#10364e;border:5px solid #203345;border-radius:23px;overflow:hidden;box-shadow:8px 9px 18px #0a263321;color:white}.phone-camera{position:absolute;width:44px;height:10px;background:#203345;left:50%;top:0;transform:translateX(-50%);border-radius:0 0 8px 8px;z-index:2}.phone-header{position:absolute;top:17px;left:16px;font-size:12px;z-index:2}.video-art{height:100%;width:100%;position:absolute;inset:0;background:linear-gradient(155deg,#75a5b6,#254e69 75%);overflow:hidden}.video-circle{position:absolute;width:180px;height:180px;border:1px solid #d8effb40;border-radius:50%;left:0;top:30px}.video-object{position:absolute;width:68px;height:90px;background:#e4b068;top:59px;left:44px;transform:rotate(-15deg);border-radius:18px 18px 15px 15px;box-shadow:10px 20px 18px #0a29375c}.video-object:before{content:"";position:absolute;top:-9px;left:21px;width:26px;height:14px;border:4px solid #f1d3aa;border-radius:12px 12px 0 0}.play-symbol{position:absolute;top:100px;left:66px;width:32px;height:32px;display:grid;place-items:center;border:1px solid #ffffff98;border-radius:50%;background:#ffffff30;color:white;font-size:14px}.phone-copy{position:absolute;bottom:11px;left:12px;right:12px}.phone-copy .sponsored{color:#d1e6f2;font-size:12px;margin:0 0 5px}.phone-copy>strong{display:block;font-size:14px;line-height:1.5}.phone-copy>span:not(.sponsored){display:block;font-size:12px;margin:5px 0}.mock-cta{padding:6px 8px;color:#143d55;background:white;border-radius:3px;font-size:12px;display:block;margin-top:8px}.feed-notes{max-width:175px}.feed-notes>.position-dot{margin-bottom:16px}.feed-notes>strong{display:block;font-size:18px;line-height:1.6}.feed-notes>p{font-size:14px;line-height:2;color:#7691a6;margin:14px 0}.mock-safe{display:inline-block;border-top:1px solid #dfebf1;font-size:12px;color:#7494aa;padding-top:13px}.mock-news-title{font:700 19px/1.3 var(--font);letter-spacing:.03em;margin:22px 22px 17px;padding-bottom:11px;border-bottom:1px solid #e1eaf0}.article-layout{display:grid;grid-template-columns:2.2fr 1fr;gap:16px;margin:0 22px 16px}.mock-article .mock-lines{margin-top:12px}.article-art{height:60px;border-radius:3px;background:linear-gradient(140deg,#d5e4ed 40%,#b3c9d8 40%,#b3c9d8 65%,#e8d6b9 65%)}.mock-sidebar{background:#f1f5f8;border-radius:4px;padding:10px;font-size:12px;color:#738c9f}.mock-sidebar .sponsored{font-size:12px;margin-bottom:5px}.sidebar-art{height:58px;background:#aecbdb;border-radius:3px;position:relative;margin-top:6px;overflow:hidden}.sidebar-art:after{content:"";position:absolute;width:32px;height:40px;border-radius:12px;background:#e8c397;left:50%;top:14px;transform:translateX(-50%) rotate(10deg)}.recommendations{margin:0 22px 18px;padding:11px}.recommendations>strong{display:block;font-size:12px;margin-bottom:9px}.recommendations>div{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.recommendations>div>div>span{font-size:12px;display:block;line-height:1.5;margin-top:5px}.recommend-art{display:block;height:45px;border-radius:2px;background:#d4e1e8;position:relative;overflow:hidden}.art-1{background:#dfd4c3}.art-2{background:#adcedd}.art-3{background:#d1dfd4}.recommend-art:after{content:"";width:32px;height:34px;position:absolute;bottom:-5px;left:30%;background:#fafcfc8a;border-radius:30px 30px 0 0;transform:rotate(15deg)}.pin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:0 24px 21px}.pin{min-width:0}.pin-art{height:147px;background:#d0e0e3;position:relative;border-radius:10px;overflow:hidden}.pin-art:before{content:"";position:absolute;left:22%;right:22%;height:72px;top:45px;background:#91b2b4;border-radius:40px 40px 8px 8px}.pin-2{padding:4px;border:1px solid var(--blue);border-radius:12px}.pin-2 .pin-art{background:#f0e0c8;height:122px}.pin-2 .pin-art:before{background:#cfa36f}.pin-3 .pin-art{height:170px;background:#dbe2cd}.pin-3 .pin-art:before{background:#b1ba8e;transform:rotate(15deg)}.pin-4 .pin-art{height:125px;background:#ddd8e1}.pin-4 .pin-art:before{background:#b7a6bc}.pin>span{display:block;font-size:12px;margin-top:7px;line-height:1.5}.pin .sponsored{margin-bottom:0;font-size:12px}.chat-question{margin:26px 22px 18px 70px;border-radius:9px 9px 2px 9px;padding:11px 14px;background:#e8f2fa;font-size:14px;text-align:right}.chat-answer{position:relative;margin:0 22px 23px 42px;padding:4px 0 0 20px}.answer-icon{position:absolute;left:-18px;top:0;width:26px;height:26px;display:grid;place-items:center;color:var(--blue);font-size:26px}.chat-answer>strong{font-size:15px;line-height:1.8;display:block}.chat-answer>p{font-size:13px;color:#678399;line-height:1.9;margin:10px 0 15px}.source-chip{font-size:12px;color:#287aad;border:1px solid #b5d4e9;border-radius:4px;display:inline-block;padding:5px 9px;margin-top:17px}.hero-product .ad-mock{min-height:320px}.hero-product .mock-feed{min-height:340px}.hero-product .feed-layout{gap:22px;padding:21px}.hero-product .mock-phone{height:257px;width:147px}.hero-product .feed-notes>strong{font-size:16px}
@media(min-width:1500px){:root{--container:min(1320px,calc(100% - 120px))}.hero-home .hero-inner{min-height:630px}.growth-scene{height:485px}.hero h1{font-size:64px}.hero-product h1{font-size:52px}}
@media(max-width:1100px){:root{--container:min(1240px,calc(100% - 48px))}.main-nav{gap:18px;font-size:14px}.logo img{width:164px}.header-inner{gap:20px}.main-nav .button{font-size:14px;padding-inline:12px;gap:10px}.hero-home .hero-inner{gap:12px;min-height:565px}.hero-home h1{font-size:47px}.hero-inner{gap:32px}.hero-product .hero-inner{gap:34px}.hero-product h1{font-size:38px}.growth-scene{height:420px}.scene-brand{width:154px;top:166px}.scene-brand img{width:134px}.media-node{width:98px;height:58px}.media-node .product-logo{width:76px;height:23px}.media-node-1{top:46px}.media-node-4{bottom:34px}.media-node-3,.media-node-5{top:282px}.media-node-6{left:0;top:108px}.media-node-2{top:103px}.globe-fallback{width:290px;height:290px}.brand-rail>.container{gap:25px}.brand-rail-logos{gap:20px}.brand-rail .product-logo{height:21px}.toc-links{gap:22px}.contact-band-inner{gap:65px}.footer-grid{gap:32px}.editorial-layout{gap:55px}.placement-explorer{gap:30px}.product-overview{gap:55px}}
@media(max-width:980px){.main-nav{gap:13px;font-size:14px}.main-nav .button{display:none}.header-inner{height:75px}.nav-link{padding:25px 0}.logo img{width:160px}.hero-home .hero-inner{grid-template-columns:1.12fr 1fr;min-height:520px;padding-block:46px}.hero-home h1{font-size:41px}.hero-intro{font-size:15px}.hero-actions{gap:22px}.hero .button{font-size:14px;padding:10px 17px;gap:18px;min-height:46px}.hero-text-link{font-size:14px;gap:10px}.hero-tags{font-size:13px;gap:11px}.hero .eyebrow{font-size:12px}.growth-scene{height:375px}.scene-caption span:last-child,.scene-bottom span:last-child{display:none}.scene-brand{top:150px;width:137px}.scene-brand img{width:115px}.scene-brand>span{font-size:12px}.media-node{width:80px;height:51px}.media-node .product-logo{width:62px;height:20px}.media-node-1{top:45px}.media-node-2{top:109px}.media-node-3{top:258px}.media-node-4{bottom:24px}.media-node-5{top:251px}.media-node-6{top:96px}.globe-fallback{top:72px;width:250px;height:250px}.brand-rail>.container{gap:20px}.brand-rail p{min-width:113px}.brand-rail-logos{gap:15px}.brand-rail .product-logo{height:20px}.content-section{padding:70px 0}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.media-card{min-height:260px}.page-home #official-partners .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.page-home #official-partners .info-card{padding:22px 18px}.page-home #official-partners .info-card h3{font-size:19px}.page-home #official-partners .product-logo{width:130px;height:28px}.metrics>div{padding-inline:23px}.metrics strong{font-size:41px}.split-layout{gap:48px}.faq-layout{gap:48px}.product-toc{top:74px}.toc-name{display:none}.toc-links{gap:28px;width:100%;justify-content:space-between}.hero-product .hero-inner{gap:28px}.hero-product h1{font-size:34px}.product-identity>.product-logo{width:145px;height:49px}.product-identity>span:last-child{font-size:12px}.product-identity>.product-logo:has(.secondary-logo){width:195px}.hero-product .hero-intro{font-size:14px}.hero-product .hero-tags{font-size:12px}.hero-product .ad-mock{min-height:280px}.hero-product .mock-searchbar{margin:16px 14px 13px;font-size:12px}.hero-product .mock-result{margin-inline:14px;padding:12px}.hero-product .mock-result>strong{font-size:14px;padding-right:9px}.hero-product .mock-result>p{font-size:12px}.hero-product .mock-result.faint{margin-top:5px}.hero-product .mock-result .position-dot{width:18px;height:18px;right:4px;top:6px;font-size:12px}.hero-product .mock-feed{min-height:310px}.hero-product .feed-layout{padding:20px 14px;gap:16px}.hero-product .mock-phone{width:130px;height:245px}.hero-product .feed-notes>strong{font-size:14px}.hero-product .feed-notes>p{font-size:12px}.hero-product .mock-safe{font-size:12px}.hero-product .mock-products{margin-inline:14px;gap:7px}.hero-product .mock-product{padding:8px 5px}.hero-product .product-shape{height:76px}.hero-product .mock-product>span{font-size:12px}.product-overview{grid-template-columns:.6fr 1.4fr;gap:40px}.overview-copy{font-size:18px}.placement-explorer{grid-template-columns:.75fr 1.25fr;gap:24px}.placement-tabs button{padding:18px 14px;gap:10px}.placement-tabs button strong{font-size:15px}.placement-tabs button small{font-size:13px}.editorial-layout{gap:50px}.editorial-layout .section-heading h2{font-size:32px}.editorial-row{gap:18px}.tips-grid>li{gap:17px}.tips-grid>li:nth-child(even){padding-left:25px}.tip-number{font-size:34px;min-width:40px}.product-filter{align-items:flex-start}.filter-buttons{max-width:570px;justify-content:flex-end}.contact-band h2{font-size:39px}.contact-band-inner{gap:45px}.contact-choices strong{font-size:31px}.wechat-card{padding-inline:18px}.wechat-card strong{font-size:25px}.footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:25px}.footer-grid>div:last-child{grid-column:1/-1;display:flex;align-items:center;gap:25px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}.footer-grid>div:last-child h2{margin:0}.footer-grid>div:last-child p{margin:0}.hero-standard .hero-inner{grid-template-columns:1.15fr 1fr}.chapter-visual{padding-left:25px}.chapter-visual>strong{font-size:27px}.chapter-links{gap:14px}.chapter-links span{margin-left:5px}}
@media(max-width:760px){:root{--container:calc(100% - 40px)}html{scroll-padding-top:128px}.utility-inner{min-height:28px}.utility-inner>span{font-size:12px}.utility-inner>a{font-size:12px}.utility-inner b{margin-left:4px}.utility-inner a>span{display:none}.header-inner{height:68px}.logo img{width:148px}.menu-toggle{display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid #dce5ed;border-radius:5px;background:white;margin-left:auto}.menu-toggle>span{width:18px;height:1.5px;background:var(--ink);transition:transform .25s}.menu-toggle[aria-expanded=true]>span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded=true]>span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:white;padding:10px 20px 24px;border-top:1px solid var(--line);box-shadow:0 20px 30px 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