:root{color:#172033;background:#fff;font-family:Microsoft YaHei UI,Microsoft YaHei,PingFang SC,Noto Sans SC,system-ui,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px}body{margin:0;min-width:320px;color:#172033;background:#fff;font-size:14px}button,a{font:inherit}button{border:0}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 48px));margin:0 auto}.site-header{position:sticky;z-index:50;top:0;border-bottom:1px solid #e5eaf1;background:#fffffff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.header-inner{display:grid;width:min(1420px,calc(100% - 40px));height:68px;margin:0 auto;grid-template-columns:280px minmax(0,1fr) 148px;align-items:center}.brand{display:inline-flex;align-items:center;gap:10px;color:#101c35;font-size:20px;font-weight:850;white-space:nowrap}.brand-mark,.mini-brand{display:inline-flex;align-items:center;justify-content:center;background:#1677ff;color:#fff;font-weight:850}.brand-mark{width:34px;height:34px;border-radius:8px;font-size:16px;box-shadow:0 8px 18px #1677ff33}.desktop-nav{display:flex;justify-content:center;gap:42px;color:#35445d;font-weight:700}.desktop-nav a{display:flex;height:68px;align-items:center;transition:color .16s ease}.desktop-nav a:hover{color:#1677ff}.header-download,.mobile-download{display:inline-flex;height:40px;align-items:center;justify-content:center;gap:7px;border-radius:6px;background:#1677ff;color:#fff;font-weight:800;box-shadow:0 8px 18px #1677ff33;transition:background .16s ease,transform .16s ease}.header-download:hover,.mobile-download:hover,.button-primary:hover{background:#0958d9;transform:translateY(-1px)}.mobile-menu-button,.mobile-nav{display:none}.hero-band{overflow:hidden;border-bottom:1px solid #e8edf4;background:#fff}.hero{display:grid;min-height:640px;grid-template-columns:440px minmax(0,1fr);align-items:center;gap:62px;padding:70px 0 82px}.hero>*{min-width:0}.hero-copy{position:relative;z-index:2}.eyebrow,.section-heading>span,.section-heading>div>span,.section-kicker{color:#1677ff;font-size:13px;font-weight:850}.eyebrow{display:inline-flex;height:30px;align-items:center;gap:8px;border:1px solid #dbeafe;border-radius:999px;background:#f5f9ff;padding:0 12px}.eyebrow span{width:7px;height:7px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 4px #12b76a1f}.hero h1{margin:24px 0 20px;color:#10203d;font-size:54px;font-weight:900;line-height:1.28;letter-spacing:0}.hero-description{max-width:420px;margin:0;color:#526176;font-size:17px;line-height:1.9}.hero-actions,.download-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.hero-actions{margin-top:30px}.button{display:inline-flex;height:42px;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:6px;padding:0 18px;font-weight:800;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}.button-large{height:52px;min-width:178px;padding:0 24px;font-size:16px}.button-primary{background:#1677ff;color:#fff;box-shadow:0 10px 22px #1677ff33}.button-secondary{border-color:#9cc8ff;background:#fff;color:#1267dd}.button-secondary:hover{border-color:#1677ff;background:#f4f9ff}.button-green{background:#12a66a;color:#fff;box-shadow:0 10px 22px #12a66a29}.button-green:hover{background:#07834f;transform:translateY(-1px)}.version-line{margin:15px 0 0;color:#708098;font-size:12px}.trust-list{display:flex;flex-wrap:wrap;gap:18px;margin-top:28px;color:#35445d;font-size:13px;font-weight:750}.trust-list span{display:inline-flex;align-items:center;gap:6px}.trust-list svg{color:#12a66a}.product-visual{position:relative;min-width:0;width:min(100%,700px);justify-self:end;padding:0 0 54px 72px}.hero-scene{display:block;width:100%;aspect-ratio:16 / 10;border-radius:18px;-o-object-fit:cover;object-fit:cover;box-shadow:0 28px 60px #1e406e2e}.real-ui-card{position:absolute;bottom:0;left:0;width:68%;overflow:hidden;margin:0;border:1px solid #cfdaea;border-radius:12px;background:#fff;box-shadow:0 18px 40px #1a376033}.real-ui-card img{display:block;width:100%;aspect-ratio:16 / 9;-o-object-fit:cover;object-fit:cover;-o-object-position:center 18%;object-position:center 18%}.real-ui-card figcaption{display:flex;align-items:center;gap:8px;padding:10px 14px;color:#35445d;font-size:11px;font-weight:800}.app-frame{overflow:hidden;border:1px solid #ccd7e6;border-radius:8px;background:#fff;box-shadow:0 28px 60px #1e406e29}.app-titlebar{display:flex;height:38px;align-items:center;justify-content:space-between;border-bottom:1px solid #e1e7ef;padding:0 12px;color:#25344c;font-size:10px;font-weight:750}.mini-brand{width:18px;height:18px;margin-right:5px;border-radius:4px;font-size:9px}.window-controls{display:flex;gap:12px}.window-controls i{width:8px;height:8px;border:1px solid #8b9bb0;border-radius:2px}.app-body{display:grid;height:430px;grid-template-columns:104px 174px minmax(260px,1fr) 154px;font-size:9px}.app-sidebar{display:flex;flex-direction:column;gap:5px;border-right:1px solid #e3eaf2;background:#f7faff;padding:14px 8px}.app-sidebar span,.app-sidebar strong{display:flex;height:30px;align-items:center;gap:7px;border-radius:4px;padding:0 9px;color:#526176;white-space:nowrap}.app-sidebar .sidebar-active{background:#1677ff;color:#fff}.contact-panel{border-right:1px solid #e3eaf2;background:#fff}.panel-heading{display:flex;height:42px;align-items:center;gap:5px;border-bottom:1px solid #e6edf5;padding:0 11px;color:#172033;font-size:11px;font-weight:850}.panel-heading b{display:inline-flex;height:17px;min-width:17px;align-items:center;justify-content:center;border-radius:999px;background:#eaf3ff;color:#1677ff;font-size:8px}.fake-search{height:27px;margin:8px;border:1px solid #dfe7f1;border-radius:5px;padding:7px 9px;color:#9aa8bb}.contact{display:grid;min-height:54px;grid-template-columns:26px minmax(0,1fr) 28px;align-items:center;gap:7px;padding:6px 8px}.contact.active{background:#f0f7ff}.contact p,.contact strong,.contact small{display:block;min-width:0;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.contact strong{color:#25344c;font-size:9px}.contact small,.contact em{color:#8190a4;font-size:7px;font-style:normal}.avatar{display:inline-flex;width:26px;height:26px;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-size:8px;font-style:normal;font-weight:850}.avatar.teal{background:#15998f}.avatar.blue{background:#448be0}.avatar.orange{background:#d88653}.avatar.violet{background:#806dc2}.avatar.ai{background:#1677ff}.chat-panel{display:flex;min-width:0;flex-direction:column;background:#f8fbff}.chat-heading{display:flex;height:52px;flex:0 0 52px;align-items:center;justify-content:space-between;border-bottom:1px solid #e6edf5;background:#fff;padding:0 10px}.chat-heading strong{font-size:10px}.chat-heading button{height:24px;border:1px solid #dbe4ef;border-radius:4px;background:#fff;padding:0 8px;color:#526176;font-size:8px}.ai-pill{display:inline-flex;height:18px;align-items:center;margin-left:7px;border-radius:999px;background:#e9f9f1;padding:0 7px;color:#07834f;font-size:7px;font-weight:850}.messages{display:flex;min-height:0;flex:1 1 auto;flex-direction:column;gap:22px;padding:32px 13px}.message{display:flex;align-items:flex-start;gap:7px}.message p{max-width:80%;margin:0;border-radius:6px;padding:9px 10px;color:#35445d;line-height:1.65}.message.incoming p{background:#fff;box-shadow:0 3px 10px #0f23400f}.message.outgoing{justify-content:flex-end}.message.outgoing p{background:#dfeeff}.composer{display:flex;height:58px;align-items:center;justify-content:space-between;border-top:1px solid #e5ecf4;background:#fff;padding:0 10px;color:#9aa8bb}.composer button{height:27px;border-radius:4px;background:#1677ff;padding:0 12px;color:#fff;font-size:8px}.customer-panel{border-left:1px solid #e3eaf2;background:#fff}.customer-panel dl{display:grid;grid-template-columns:52px 1fr;gap:13px 7px;margin:0;padding:14px 10px}.customer-panel dt{color:#8190a4}.customer-panel dd{margin:0;color:#25344c;font-weight:750;text-align:right}.customer-panel dd span{border-radius:3px;background:#e9f9f1;padding:3px 5px;color:#07834f;font-size:7px}.session-info{margin:8px;border-top:1px solid #e5ecf4;padding:12px 3px}.session-info p{display:flex;justify-content:space-between;margin:12px 0 0;color:#8190a4}.session-info b{color:#35445d}.live-card,.count-card{position:absolute;z-index:2;bottom:-35px;display:flex;min-height:72px;align-items:center;border:1px solid #e2e9f2;border-radius:7px;background:#fff;box-shadow:0 16px 32px #1b396324}.live-card{right:122px;gap:10px;padding:0 17px}.live-dot{width:11px;height:11px;border-radius:50%;background:#12b76a;box-shadow:0 0 0 5px #12b76a1f}.live-card strong,.live-card small,.count-card strong,.count-card small{display:block}.live-card strong{font-size:13px}.live-card small,.count-card small{margin-top:5px;color:#708098;font-size:10px}.count-card{right:8px;align-items:flex-start;flex-direction:column;justify-content:center;padding:0 15px}.count-card strong{margin-top:2px;color:#1677ff;font-size:24px}.capability-band{background:#f5f8fc;padding:68px 0}.showcase-band{background:#fff;padding:78px 0}.showcase-grid{display:grid;margin-top:34px;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.showcase-card{overflow:hidden;margin:0;border:1px solid #dfe7f1;border-radius:14px;background:#fff;box-shadow:0 16px 38px #1e406e17}.showcase-wide{grid-column:1 / -1}.showcase-card img{display:block;width:114%;max-width:none;margin-left:-14%;aspect-ratio:16 / 8.8;-o-object-fit:cover;object-fit:cover;-o-object-position:center bottom;object-position:center bottom}.showcase-wide img{aspect-ratio:16 / 6.7}.showcase-card figcaption{display:grid;gap:7px;padding:18px 20px 20px}.showcase-card figcaption strong{color:#172033;font-size:17px}.showcase-card figcaption span{color:#708098;line-height:1.7}.section-heading h2,.security-copy h2{margin:7px 0 0;color:#10203d;font-size:30px;line-height:1.35;letter-spacing:0}.section-heading p{margin:0;color:#708098;line-height:1.7}.compact-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px}.capability-grid{display:grid;margin-top:34px;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid #dfe7f1;border-radius:8px;background:#fff}.capability-grid article{display:flex;min-height:116px;align-items:flex-start;gap:14px;padding:26px 22px}.capability-grid article+article{border-left:1px solid #e5ebf2}.capability-grid svg{flex:0 0 auto;color:#1677ff}.capability-grid h3,.download-title h3{margin:0;color:#172033;font-size:16px}.capability-grid p{margin:8px 0 0;color:#708098;font-size:12px;line-height:1.7}.download-band{background:#fff;padding:86px 0}.centered-heading{text-align:center}.centered-heading p{margin-top:12px}.download-grid{display:grid;margin-top:42px;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.download-card{display:grid;min-height:310px;grid-template-columns:58px minmax(0,1fr);gap:18px;border:1px solid #dfe7f1;border-radius:8px;background:#fff;padding:30px;box-shadow:0 14px 34px #0f23400f}.primary-download{border-top:3px solid #1677ff}.wechat-download{border-top:3px solid #12a66a}.download-icon{display:inline-flex;width:54px;height:54px;align-items:center;justify-content:center;border-radius:8px}.blue-icon{background:#eaf3ff;color:#1677ff}.green-icon{background:#e9f9f1;color:#07834f}.download-title{display:flex;min-width:0;align-items:center;gap:9px}.download-title h3{font-size:20px}.download-title span{display:inline-flex;height:23px;align-items:center;border:1px solid #dbe5f1;border-radius:4px;padding:0 7px;color:#526176;font-size:11px;font-weight:800}.download-copy>p{margin:10px 0 0;color:#708098;line-height:1.7}.download-copy ul{display:grid;gap:9px;margin:20px 0 24px;padding:0;list-style:none;color:#405066;font-size:13px}.download-copy li{display:flex;align-items:center;gap:7px}.download-copy li svg{color:#12a66a}.hash-button{display:inline-flex;height:42px;align-items:center;gap:7px;border-radius:6px;background:transparent;padding:0 8px;color:#526176;cursor:pointer;font-weight:750}.hash-button:hover{color:#1677ff}.upgrade-warning{display:flex;gap:10px;margin-top:18px;border-left:3px solid #f79009;background:#fff8eb;padding:12px 13px;color:#b54708}.upgrade-warning>svg{flex:0 0 auto;margin-top:1px}.upgrade-warning strong,.upgrade-warning span{display:block}.upgrade-warning strong{font-size:13px}.upgrade-warning span{margin-top:4px;font-size:11px;line-height:1.6}.wechat-download .download-actions{margin-top:24px}.install-order{display:flex;min-height:98px;align-items:center;gap:34px;margin-top:18px;border:1px solid #e0e7f0;border-radius:8px;background:#f8fbff;padding:20px 26px}.install-order>strong{flex:0 0 auto;color:#172033;font-size:15px}.install-order ol{display:grid;flex:1;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:0;padding:0;list-style:none}.install-order li{display:flex;min-width:0;align-items:center;gap:10px;font-weight:750}.install-order li>span{display:inline-flex;width:28px;height:28px;flex:0 0 28px;align-items:center;justify-content:center;border-radius:50%;background:#1677ff;color:#fff;font-size:12px}.install-order small{display:block;margin-top:4px;color:#8190a4;font-size:11px;font-weight:500}.security-band{border-top:1px solid #e5ebf2;background:#f5f8fc;padding:84px 0}.security-layout{display:grid;grid-template-columns:minmax(0,1fr) 430px;align-items:center;gap:80px}.security-copy h2{max-width:580px}.security-copy>p{max-width:620px;margin:18px 0 0;color:#607087;font-size:15px;line-height:1.9}.security-points{display:grid;margin-top:26px;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px 20px}.security-points span{display:inline-flex;align-items:center;gap:8px;color:#35445d;font-weight:750}.security-points svg{color:#12a66a}.release-panel{border:1px solid #dce5ef;border-radius:8px;background:#fff;padding:26px;box-shadow:0 18px 42px #0f234014}.release-head,.release-head>div{display:flex;align-items:center}.release-head{justify-content:space-between}.release-head>div{gap:8px}.release-head svg{color:#1677ff}.release-head span{border-radius:999px;background:#e9f9f1;padding:5px 9px;color:#07834f;font-size:10px;font-weight:850}.release-panel ul{display:grid;gap:13px;margin:24px 0;padding:0;list-style:none;color:#526176}.release-panel li{display:flex;gap:8px;line-height:1.6}.release-panel li svg{flex:0 0 auto;margin-top:2px;color:#12a66a}.release-panel>a{display:inline-flex;align-items:center;gap:4px;color:#1677ff;font-weight:800}footer{border-top:1px solid #e1e7ef;background:#fff;padding:34px 0}.footer-inner{display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px 40px}.footer-brand{font-size:16px}.footer-brand .brand-mark{width:28px;height:28px;border-radius:6px;font-size:12px}.footer-inner>div>p,.copyright{color:#8190a4;font-size:11px}.footer-inner>div>p{margin:8px 0 0}.footer-links{display:flex;gap:24px;color:#526176;font-size:12px;font-weight:700}.footer-links a:hover{color:#1677ff}.copyright{grid-column:1 / -1;margin:0;border-top:1px solid #edf1f6;padding-top:18px;line-height:1.6}@media (max-width: 1120px){.header-inner{grid-template-columns:240px minmax(0,1fr) 130px}.desktop-nav{gap:24px}.hero{min-height:auto;grid-template-columns:380px minmax(0,1fr);gap:36px}.hero h1{font-size:46px}.product-visual{width:100%}.app-body{grid-template-columns:92px 160px minmax(250px,1fr)}.customer-panel{display:none}.security-layout{gap:44px}}@media (max-width: 900px){.container{width:min(100% - 32px,720px)}.header-inner{display:flex;width:calc(100% - 32px);justify-content:space-between}.desktop-nav,.header-download{display:none}.mobile-menu-button{display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;border-radius:6px;background:#f2f6fb;color:#35445d}.mobile-nav{display:grid;gap:4px;border-top:1px solid #edf1f6;padding:10px 16px 16px;background:#fff}.mobile-nav>a{display:flex;min-height:42px;align-items:center;border-radius:5px;padding:0 12px;font-weight:750}.mobile-nav .mobile-download{justify-content:center;margin-top:5px;color:#fff}.hero{grid-template-columns:1fr;gap:56px;padding:54px 0 80px}.hero-copy{text-align:center}.hero h1{font-size:44px}.hero-description{margin:0 auto}.hero-actions,.trust-list{justify-content:center}.product-visual{width:100%;height:auto;justify-self:stretch;transform:none}.capability-grid,.download-grid,.security-layout,.showcase-grid{grid-template-columns:1fr}.showcase-wide{grid-column:auto}.capability-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.capability-grid article+article{border-left:0}.capability-grid article:nth-child(2n){border-left:1px solid #e5ebf2}.capability-grid article:nth-child(n+3){border-top:1px solid #e5ebf2}.compact-heading,.install-order{align-items:flex-start;flex-direction:column}.install-order ol{width:100%}.security-layout{gap:34px}}@media (max-width: 620px){.brand{font-size:16px}.brand-mark{width:30px;height:30px;font-size:13px}.hero h1{font-size:38px}.hero-description{font-size:15px}.hero-actions{align-items:stretch;flex-direction:column}.button-large{width:100%}.trust-list{gap:10px 16px}.product-visual{width:100%;height:auto;padding:0 0 38px 34px;transform:none}.real-ui-card{width:74%}.app-body{height:330px;grid-template-columns:minmax(0,1fr)}.app-sidebar,.contact-panel,.customer-panel{display:none}.messages{padding:24px 12px}.message p{font-size:9px}.count-card{display:none}.live-card{right:12px}.live-card,.count-card{bottom:-25px}.capability-band,.showcase-band,.download-band,.security-band{padding:62px 0}.section-heading h2,.security-copy h2{font-size:25px}.capability-grid{grid-template-columns:1fr}.capability-grid article:nth-child(2n){border-left:0}.capability-grid article+article{border-top:1px solid #e5ebf2}.download-card{grid-template-columns:1fr;padding:24px}.download-title{align-items:flex-start;flex-direction:column}.download-actions{align-items:stretch;flex-direction:column}.download-actions .button,.hash-button{width:100%;justify-content:center}.install-order ol,.security-points,.footer-inner{grid-template-columns:1fr}.footer-links{flex-wrap:wrap}}