:root{--blue:#377cf6;--blue-dark:#195bd8;--ink:#18213a;--muted:#68738c;--line:#e8edf5;--soft:#f6f8fc;--white:#fff;--shadow:0 24px 70px rgba(34,70,130,.16)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff}a{text-decoration:none;color:inherit}

.container{width:min(1180px,calc(100% - 40px));margin:auto}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,235,244,.8)}.nav-wrap{height:76px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:800;white-space:nowrap}.brand-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#4e8fff,#2869ee);box-shadow:0 8px 18px rgba(55,124,246,.3)}.nav{display:flex;align-items:center;gap:34px;margin-left:auto}.nav a{position:relative;font-size:14px;color:#536078;font-weight:500}.nav a:hover,.nav a.active{color:var(--blue)}.nav a.active:after{content:"";position:absolute;height:2px;background:var(--blue);left:20%;right:20%;bottom:-27px}.nav-cta{padding:11px 20px;border-radius:9px;background:var(--blue);color:#fff;font-size:14px;font-weight:600;box-shadow:0 8px 20px rgba(55,124,246,.24)}.menu-btn{display:none;border:0;background:none;padding:8px}.menu-btn span{display:block;width:24px;height:2px;background:#25304a;margin:5px}
.hero{position:relative;overflow:hidden;padding:86px 0 92px;background:linear-gradient(135deg,#f7fbff 0%,#edf5ff 52%,#f6f8ff 100%)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(55,124,246,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(55,124,246,.035) 1px,transparent 1px);background-size:40px 40px}.hero-blur{position:absolute;border-radius:50%;filter:blur(2px)}.blur-one{width:420px;height:420px;background:rgba(90,157,255,.16);right:-100px;top:-140px}.blur-two{width:280px;height:280px;background:rgba(120,93,255,.1);left:-100px;bottom:-120px}.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:54px}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border:1px solid rgba(55,124,246,.18);border-radius:999px;background:rgba(255,255,255,.72);color:#3773df;font-size:13px;font-weight:600}.hero-badge span{width:7px;height:7px;background:#45c884;border-radius:50%;box-shadow:0 0 0 5px rgba(69,200,132,.12)}h1{font-size:49px;line-height:1.28;margin:22px 0 18px;letter-spacing:-1.8px}h1 em{font-style:normal;color:var(--blue)}.hero-desc{font-size:17px;line-height:1.9;color:#5c6983;max-width:620px}.hero-meta{display:flex;align-items:center;gap:24px;margin:28px 0}.hero-meta div{display:flex;flex-direction:column}.hero-meta strong{font-size:22px}.hero-meta span{font-size:12px;color:#8490a7;margin-top:3px}.hero-meta i{width:1px;height:30px;background:#dce4f0}.download-row{display:flex;gap:12px;flex-wrap:wrap}.download{min-width:147px;display:flex;align-items:center;gap:10px;padding:12px 16px;border:1px solid #dbe5f3;border-radius:10px;background:#fff;box-shadow:0 8px 24px rgba(37,78,140,.08);font-size:15px;font-weight:700}.download.primary{color:#fff;border-color:var(--blue);background:linear-gradient(135deg,#4389ff,#2f70eb)}.download small{display:block;font-size:10px;font-weight:400;opacity:.72;margin-bottom:2px}.os-icon{font-size:23px}.support-text{font-size:12px;color:#8994a9;margin-top:15px}.hero-visual{position:relative;padding:40px 0}.app-window{position:relative;border:1px solid rgba(170,190,220,.45);border-radius:18px;background:#fff;box-shadow:var(--shadow);overflow:hidden;transform:perspective(1400px) rotateY(-3deg) rotateX(1deg)}.window-top{height:42px;display:flex;align-items:center;border-bottom:1px solid #edf1f7;padding:0 15px;background:#fafcff}.traffic{display:flex;gap:6px}.traffic span{width:8px;height:8px;border-radius:50%;background:#d8dfeb}.traffic span:first-child{background:#ff7d72}.traffic span:nth-child(2){background:#ffc765}.traffic span:nth-child(3){background:#66d48b}.window-title{margin:auto;font-size:11px;color:#748097}.window-action{color:#9ca7b8}.app-body{height:380px;display:grid;grid-template-columns:52px 185px 1fr}.app-sidebar{background:#2768e9;padding:14px 0;display:flex;align-items:center;flex-direction:column;gap:21px}.side-logo{width:28px;height:28px;border-radius:8px;background:#fff;color:#2869ee;display:grid;place-items:center;font-weight:800}.side-item{width:17px;height:17px;border-radius:5px;background:rgba(255,255,255,.25)}.side-item.active{background:#fff}.reply-panel{padding:15px;border-right:1px solid #edf1f7}.panel-search,.preview-search{height:30px;border-radius:7px;background:#f3f6fa;color:#a0a9b9;font-size:9px;padding:8px 10px}.tag-row{display:flex;gap:4px;margin:10px 0}.tag-row span{font-size:7px;padding:4px 6px;background:#edf4ff;color:#4f7fd5;border-radius:4px}.reply-list{display:grid;gap:8px}.reply-item{padding:9px;border:1px solid #edf1f6;border-radius:7px}.reply-item.selected{border-color:#7ea8f7;background:#f5f9ff}.reply-item b{font-size:9px}.reply-item p{font-size:7px;color:#8b96a9;line-height:1.5;margin:4px 0 0}.chat-panel{display:flex;flex-direction:column}.chat-head{display:flex;gap:8px;align-items:center;padding:12px 14px;border-bottom:1px solid #edf1f7}.avatar{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:10px}.avatar.blue{background:#4d87ec}.avatar.purple{background:#856bed}.chat-head div{display:flex;flex-direction:column}.chat-head b{font-size:10px}.chat-head small{font-size:7px;color:#4fc18a}.messages{flex:1;background:#f8fafc;padding:20px 14px}.message{width:78%;font-size:8px;line-height:1.6;padding:9px 10px;margin-bottom:12px;border-radius:10px}.message.customer{background:#fff;border:1px solid #e8edf4}.message.service{margin-left:auto;color:#fff;background:#4c84ec}.typing{font-size:7px;color:#a0a9b7}.chat-input{height:54px;padding:10px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf1f7;color:#b1b9c6;font-size:8px}.chat-input button{border:0;border-radius:5px;padding:7px 12px;background:#377cf6;color:#fff;font-size:8px}.floating-card{position:absolute;z-index:3;display:flex;align-items:center;gap:10px;padding:12px 15px;border-radius:12px;background:rgba(255,255,255,.94);box-shadow:0 15px 35px rgba(30,66,120,.18);border:1px solid rgba(220,230,244,.8)}.floating-card div{display:flex;flex-direction:column}.floating-card b{font-size:10px}.floating-card small{font-size:7px;color:#8c97aa;margin-top:3px}.card-a{top:4px;left:-26px}.card-b{right:-25px;bottom:8px}.success-icon{width:29px;height:29px;border-radius:50%;background:#e8fbf1;color:#32b672;display:grid!important;place-items:center;font-weight:800}
.advantages{position:relative;z-index:4;margin-top:-1px;background:#fff;border-bottom:1px solid #eef1f6}.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr)}.advantage-grid article{display:flex;gap:18px;padding:31px 34px;border-right:1px solid #edf1f6}.advantage-grid article:first-child{border-left:1px solid #edf1f6}.adv-icon{width:47px;height:47px;flex:none;border-radius:13px;display:grid;place-items:center;background:#edf4ff;color:var(--blue);font-size:21px}.advantage-grid h3{font-size:16px;margin:0 0 7px}.advantage-grid p{font-size:12px;line-height:1.65;color:#7b879d;margin:0}.section{padding:100px 0}.section-heading span{font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:800}.section-heading h2{font-size:35px;margin:12px 0 13px;letter-spacing:-1px}.section-heading p{font-size:15px;line-height:1.8;color:#78849b;max-width:640px}.section-heading.center{text-align:center}.section-heading.center p{margin-left:auto;margin-right:auto}.preview{background:#fff}.preview-frame{margin-top:50px;border:1px solid #dfe6f1;border-radius:18px;overflow:hidden;box-shadow:0 30px 70px rgba(28,62,112,.13)}.preview-toolbar{height:48px;display:flex;align-items:center;gap:7px;padding:0 17px;background:#f8fafc;border-bottom:1px solid #e9edf4}.preview-toolbar span{width:9px;height:9px;border-radius:50%;background:#d3dbe7}.preview-toolbar span:first-child{background:#ff7f76}.preview-toolbar span:nth-child(2){background:#ffc55d}.preview-toolbar span:nth-child(3){background:#63d28a}.preview-toolbar b{font-size:11px;color:#8490a3;margin:auto}.preview-content{display:grid;grid-template-columns:66px 200px 1fr 285px;min-height:430px}.preview-menu{background:#2869e8;display:flex;align-items:center;flex-direction:column;gap:23px;padding-top:18px}.preview-menu strong{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:#fff;color:#2869e8}.preview-menu i{width:19px;height:19px;border-radius:5px;background:rgba(255,255,255,.25)}.preview-menu i:first-of-type{background:#fff}.preview-categories,.preview-replies,.preview-editor{padding:22px;border-right:1px solid #edf1f6}.preview-categories h4,.preview-editor h4{margin:0 0 20px;font-size:13px}.category{display:flex;justify-content:space-between;padding:10px 9px;border-radius:7px;color:#707c91;font-size:11px;margin-bottom:7px}.category.active{background:#edf4ff;color:#377cf6}.category small{font-size:9px}.preview-search{font-size:10px;height:35px;padding:10px}.large-reply{position:relative;margin-top:11px;padding:14px;border:1px solid #e8edf4;border-radius:9px}.large-reply.active{background:#f6f9ff;border-color:#8cb2fa}.large-reply b{font-size:11px}.large-reply p{font-size:9px;line-height:1.6;color:#8390a5;margin:7px 0 0}.large-reply small{position:absolute;right:9px;top:9px;font-size:7px;color:#a2acbc}.preview-editor{border-right:0;background:#fafbfd}.preview-editor label{display:block;font-size:9px;color:#7d899d;margin:13px 0 6px}.fake-input,.fake-textarea{border:1px solid #e3e9f2;border-radius:7px;background:#fff;padding:10px;font-size:9px;color:#677388}.fake-textarea{height:135px;line-height:1.8}.editor-actions{display:flex;gap:8px;margin-top:16px}.editor-actions button{border:0;border-radius:6px;padding:9px 13px;background:#eaf1fd;color:#377cf6;font-size:9px}.editor-actions button:last-child{background:#377cf6;color:#fff}.features{background:var(--soft)}.feature-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:center}.feature-list{margin-top:36px;display:grid;gap:22px}.feature-list>div{display:flex;align-items:flex-start;gap:16px}.feature-list b{font-size:11px;color:#4b82e8;background:#e8f0ff;padding:6px 8px;border-radius:7px}.feature-list span{display:flex;flex-direction:column}.feature-list strong{font-size:14px}.feature-list small{font-size:12px;color:#8994a8;margin-top:5px}.feature-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.feature-card{padding:28px;border:1px solid #e4eaf3;border-radius:15px;background:#fff;box-shadow:0 12px 30px rgba(35,66,110,.06)}.feature-card.featured{transform:translateY(-15px);background:linear-gradient(145deg,#3f84fa,#286be8);color:#fff}.feature-card>span{font-size:26px}.feature-card h3{font-size:17px;margin:16px 0 8px}.feature-card p{font-size:12px;line-height:1.75;color:#7f8ba0;margin:0}.feature-card.featured p{color:rgba(255,255,255,.78)}.cta-section{padding:82px 0;background:#fff}.cta-box{display:flex;align-items:center;justify-content:space-between;padding:45px 55px;border-radius:21px;color:#fff;background:linear-gradient(120deg,#235fd8,#438cff);box-shadow:0 24px 50px rgba(47,111,233,.25)}.cta-box span{font-size:12px;letter-spacing:1.5px;opacity:.75}.cta-box h2{font-size:29px;margin:8px 0}.cta-box p{font-size:12px;opacity:.72;margin:0}.cta-box>a{padding:14px 22px;border-radius:10px;background:#fff;color:#2768e7;font-weight:700;font-size:13px}.cta-box>a b{margin-left:10px}footer{padding:65px 0 24px;background:#172238;color:#c8d0de}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:70px}.brand.light{color:#fff}.footer-brand p{max-width:280px;font-size:12px;line-height:1.8;color:#8f9bae}.footer-grid h4{font-size:13px;color:#fff;margin:5px 0 18px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:11px}.footer-grid a,.footer-grid p{font-size:11px;color:#8f9bae;margin:0}.footer-grid a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:10px;color:#748197}.toast{position:fixed;z-index:100;left:50%;bottom:30px;transform:translate(-50%,20px);padding:12px 20px;border-radius:9px;background:#172238;color:#fff;font-size:13px;opacity:0;pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:980px){.nav,.nav-cta{display:none}.menu-btn{display:block;margin-left:auto}.nav.open{display:flex;position:absolute;left:20px;right:20px;top:70px;padding:18px;flex-direction:column;align-items:flex-start;gap:18px;border-radius:12px;background:#fff;box-shadow:var(--shadow)}.nav a.active:after{display:none}.hero-grid,.feature-grid{grid-template-columns:1fr}.hero-content{text-align:center}.hero-desc{margin-left:auto;margin-right:auto}.hero-meta,.download-row{justify-content:center}.hero-visual{max-width:650px;margin:auto;width:100%}.advantage-grid{grid-template-columns:1fr}.advantage-grid article,.advantage-grid article:first-child{border-left:1px solid #edf1f6;border-bottom:1px solid #edf1f6}.preview-content{grid-template-columns:58px 180px 1fr}.preview-editor{display:none}.footer-grid{grid-template-columns:2fr 1fr 1fr}.footer-grid>div:last-child{grid-column:1/-1}.cta-box{gap:30px}}@media(max-width:680px){
    
.container{width:min(100% - 28px,1180px)}.nav-wrap{height:66px}
.hero{padding:60px 0 70px}h1{font-size:36px}.hero-desc{font-size:15px}.hero-meta{gap:14px}.download{min-width:calc(50% - 8px)}.hero-visual{padding-top:60px}.app-body{height:315px;grid-template-columns:44px 135px 1fr}.reply-panel{padding:10px}.tag-row span:nth-child(3){display:none}.card-a{left:0}.card-b{right:0}.advantage-grid article{padding:25px 20px}.section{padding:75px 0}.section-heading h2{font-size:29px}.preview-frame{overflow-x:auto}.preview-content{width:750px}.feature-cards{grid-template-columns:1fr}.feature-card.featured{transform:none}.cta-box{padding:35px 28px;align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:40px}.footer-brand{grid-column:1/-1}.copyright{gap:10px;flex-direction:column}.floating-card{display:none}}