@charset "UTF-8";
:root{--blue:#1762f4;--ink:#102647;--muted:#65758d;--line:#e5ebf5;--pale:#f4f8ff;--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);font-family:Inter,"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.75;background:#fff}a{color:inherit;text-decoration:none}button{font:inherit}button[aria-disabled=true]{cursor:default}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #77a5ff;outline-offset:5px}.wrap{width:min(1160px,calc(100% - 64px));margin:auto}header{height:88px;background:#ffffffed;border-bottom:1px solid #edf1f7;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.nav{height:100%;display:flex;align-items:center;gap:38px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:27px;letter-spacing:-1px}.brand svg{width:39px;height:39px}.brand small{font-size:11px;letter-spacing:2px;color:#7b8ba5;display:block;line-height:1.1}.navlinks{display:flex;gap:30px;margin-left:auto;align-items:center}.navlinks a{color:#536078;font-size:14px;position:relative}.navlinks a.active{color:var(--blue);font-weight:700}.navlinks a.active:after{content:"";position:absolute;bottom:-30px;height:3px;border-radius:4px;background:var(--blue);left:0;right:0}.nav-actions{display:flex;align-items:center;gap:20px}.login{border:0;background:none;color:#536078;padding:0}.btn{display:inline-flex;justify-content:center;align-items:center;gap:12px;padding:14px 26px;border-radius:11px;border:1px solid transparent;font-weight:650;line-height:1.5;white-space:nowrap}.primary{background:var(--blue);color:white;box-shadow:0 8px 20px #1762f421}.secondary{background:white;border-color:#dce5f4;color:var(--ink)}.small{padding:10px 20px;font-size:14px}.menu{display:none;background:none;border:0;font-size:24px;color:var(--ink)}.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 78% 40%,#dceaff 0,transparent 53%),linear-gradient(120deg,#fafcff,#eff5ff);border-bottom:1px solid #e9effa}.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#9bbdf0 1px,transparent 1px);background-size:25px 25px;opacity:.15;mask-image:linear-gradient(90deg,transparent,#000)}.hero-grid{min-height:650px;display:grid;grid-template-columns:1fr 1.05fr;align-items:center;gap:25px;position:relative;padding:65px 0 85px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:750;color:var(--blue);text-transform:uppercase;display:flex;align-items:center;gap:9px}.eyebrow:before{content:"";height:6px;width:6px;border-radius:50%;background:var(--blue)}.pill{display:inline-flex;align-items:center;gap:9px;background:#e7efff;color:#235ec2;border:1px solid #d5e4ff;border-radius:30px;padding:5px 13px;font-size:12px;font-weight:600}.hero h1{font-size:59px;line-height:1.23;letter-spacing:-2.8px;margin:24px 0 20px;font-weight:800}.blue{color:var(--blue)}.hero-copy>p{max-width:460px;font-size:16px;color:var(--muted);line-height:1.95}.actions{display:flex;gap:14px;margin-top:30px}.platform-line{display:flex;gap:22px;margin-top:28px;color:#738098;font-size:12px}.platform-line span{display:flex;gap:7px;align-items:center}.platform-line svg{width:16px;height:16px}.hero-foot{margin-top:25px;color:#7d8da7;font-size:11px;letter-spacing:.6px}.hero-art{position:relative;min-width:0}.hero-art>svg{display:block;width:112%;max-width:none;margin-left:-4%}.float-tag{position:absolute;right:-10px;top:15%;display:flex;gap:10px;align-items:center;background:#ffffffec;border:1px solid white;border-radius:12px;padding:13px 18px;box-shadow:0 14px 45px #315b9b12;font-size:12px}.float-tag b{display:block;font-size:13px}.float-tag span{color:#77879f;font-size:10px}.shield-mini{color:#13aa81;background:#e6faf3;border-radius:50%;width:33px;height:33px;display:grid;place-items:center;font-size:20px}.strip{border-bottom:1px solid var(--line)}.strip-inner{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0}.strip-item{display:flex;align-items:center;justify-content:center;gap:12px;border-right:1px solid var(--line);font-size:13px;color:#5a6a82}.strip-item:last-child{border:0}.strip-item svg{width:23px;height:23px;color:var(--blue)}section.block{padding:92px 0}.section-top{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:37px}h2{font-size:36px;line-height:1.4;letter-spacing:-1px;margin:13px 0}h3{font-size:20px;margin:18px 0 10px;line-height:1.5}p{margin:0 0 14px}.section-top p{max-width:370px;color:var(--muted);font-size:14px}.text-link{color:var(--blue);font-size:14px;font-weight:600}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:#fff}.feature-card p{font-size:14px;color:var(--muted);margin-bottom:0}.icon-box{width:48px;height:48px;border-radius:14px;background:#edf3ff;color:var(--blue);display:grid;place-items:center}.icon-box svg{width:25px;height:25px}.feature-card .num{float:right;font-size:12px;letter-spacing:2px;color:#a2b0c6}.pale{background:#f6f9ff}.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.story-copy>p{color:var(--muted);font-size:15px}.check-list{list-style:none;margin:25px 0;padding:0}.check-list li{padding:9px 0;font-size:14px;display:flex;gap:13px}.check-list li:before{content:"✓";color:var(--blue);font-weight:800}.network-art{height:360px;position:relative;border:1px solid #dce7fa;border-radius:28px;overflow:hidden;background:radial-gradient(circle at 50% 50%,white,#e8f1ff)}.network-art svg{width:100%;height:100%}.caption{position:absolute;bottom:20px;left:24px;right:24px;display:flex;justify-content:space-between;font-size:10px;letter-spacing:1.7px;color:#7892b8}.center{text-align:center}.center .eyebrow{justify-content:center}.center>p{color:var(--muted);max-width:650px;margin:0 auto}.devices{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:38px 0 25px}.device{padding:28px 24px;border-radius:18px;border:1px solid var(--line);background:#fff;text-align:left}.device .os-icon{width:40px;height:40px;display:block;margin-bottom:24px;color:var(--ink)}.device h3{font-size:20px;margin:0 0 4px}.device p{font-size:12px;color:var(--muted);margin-bottom:22px}.device .btn{width:100%;font-size:13px;padding:11px}.subtle{font-size:12px;color:#8491a5}.faq-grid{display:grid;grid-template-columns: .7fr 1.3fr;gap:90px}.faq-intro p{color:var(--muted);font-size:14px}.faq-list details{border-bottom:1px solid var(--line);padding:19px 0}.faq-list details:first-child{padding-top:0}.faq-list summary{font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:#8494ad;font-weight:400;font-size:22px;line-height:1.3}.faq-list details[open] summary:after{content:"−";color:var(--blue)}.faq-list details p{color:var(--muted);font-size:14px;margin:15px 30px 0 0}.cta{background:#135bea;color:#fff;border-radius:25px;padding:43px 50px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}.cta:after{content:"";width:320px;height:320px;border:45px solid #ffffff08;border-radius:50%;position:absolute;right:110px;top:-120px;pointer-events:none}.cta h2{font-size:30px;margin:0 0 8px}.cta p{color:#c9dcff;font-size:14px;margin:0}.cta .btn{background:#fff;color:var(--blue);z-index:1}footer{padding:60px 0 24px;margin-top:75px;background:#fafcff;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:35px}.footer-brand p{font-size:13px;color:var(--muted);margin:17px 0;max-width:260px}.footer-col b{display:block;font-size:13px;margin:8px 0 18px}.footer-col a,.footer-col span{display:block;font-size:12px;color:#72819a;margin:9px 0}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:40px;padding-top:22px;font-size:11px;color:#8a97aa}.page-hero{padding:65px 0 55px;text-align:center;background:radial-gradient(ellipse at top,#e6efff,#f8faff);border-bottom:1px solid var(--line)}.page-hero .eyebrow{justify-content:center}.page-hero h1{font-size:45px;letter-spacing:-1.8px;margin:16px 0}.page-hero p{max-width:650px;margin:auto;color:var(--muted);font-size:15px}.breadcrumb{font-size:12px;color:#8091ad;margin-bottom:25px}.download-page .devices{margin-top:0}.download-page .device{padding:35px 28px}.device .mini-label{font-size:10px;text-transform:uppercase;letter-spacing:1.3px;color:#98a5b8;margin:18px 0 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:38px}.step{position:relative}.step b{font-size:14px;color:var(--blue);letter-spacing:2px}.step p{font-size:14px;color:var(--muted)}.notice{border-left:3px solid #5386ee;background:#edf4ff;padding:20px 25px;color:#627797;font-size:13px;margin-top:35px}.long-features{display:grid;grid-template-columns:1fr 1fr;gap:24px}.long-features .feature-card{padding:35px}.guide{max-width:850px;margin:auto}.guide h2{font-size:26px;margin-top:35px}.guide p{color:var(--muted)}.faq-full{max-width:850px;margin:auto}.faq-full details{padding:24px 0}.mobile-only{display:none}
@media(min-width:1450px){.hero-grid{min-height:700px}}@media(max-width:1100px){.nav{gap:22px}.navlinks{gap:19px}.nav-actions{gap:15px}.hero h1{font-size:48px}.float-tag{right:0}.hero-grid{min-height:600px}.story-grid{gap:40px}.device{padding:23px 18px}.wrap{width:calc(100% - 48px)}}@media(max-width:800px){header{height:73px}.navlinks{display:none;position:absolute;top:72px;left:0;right:0;background:white;margin:0;padding:25px;box-shadow:0 14px 25px #1d376914;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a.active:after{display:none}.nav-actions{margin-left:auto}.nav-actions .login,.nav-actions .primary{display:none}.menu{display:block}.hero-grid{grid-template-columns:1fr;padding:50px 0 35px;text-align:center;gap:15px}.hero h1{font-size:48px;letter-spacing:-2px}.hero-copy>p{margin-left:auto;margin-right:auto;max-width:500px}.actions,.platform-line{justify-content:center}.hero-art{max-width:540px;margin:0 auto;width:100%}.hero-art>svg{width:100%;margin:0}.float-tag{top:13%;right:0}.hero-foot{margin-top:20px}.strip-inner{grid-template-columns:repeat(2,1fr);gap:20px}.strip-item:nth-child(2){border:0}.feature-grid{grid-template-columns:1fr}.feature-card{padding:25px}.section-top{align-items:start;flex-direction:column;gap:12px}.section-top p{max-width:100%}.story-grid{grid-template-columns:1fr;gap:32px}.story-copy{order:-1}.devices{grid-template-columns:repeat(2,1fr)}section.block{padding:60px 0}h2{font-size:30px}.faq-grid{grid-template-columns:1fr;gap:25px}.cta{padding:35px;align-items:start;flex-direction:column}.cta h2{font-size:27px}.footer-grid{grid-template-columns:2fr 1fr;gap:25px}.footer-bottom{gap:12px;flex-direction:column}.long-features{grid-template-columns:1fr}.steps{gap:25px}.page-hero h1{font-size:36px}.page-hero{padding:45px 0}.brand{font-size:25px}}
@media(max-width:480px){.wrap{width:calc(100% - 36px)}.hero h1{font-size:40px}.hero-copy>p{font-size:14px}.actions{gap:10px}.btn{padding:13px 18px;font-size:14px}.platform-line{gap:13px;font-size:10px}.platform-line svg{width:13px}.float-tag{padding:8px 10px;right:0;top:9%}.float-tag b{font-size:11px}.float-tag span{font-size:9px}.shield-mini{width:26px;height:26px;font-size:16px}.strip-item{font-size:11px;gap:8px}.strip-item svg{width:20px}.devices{gap:12px}.device,.download-page .device{padding:22px 15px}.device h3{font-size:18px}.device p{font-size:11px}.device .btn{padding:10px 6px;font-size:12px}.network-art{height:300px}.steps{grid-template-columns:1fr;gap:15px}.step h3{margin-top:6px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-brand p{max-width:100%}.footer-col:last-child{grid-column:auto}h2{font-size:28px}.page-hero h1{font-size:31px}.cta{padding:28px}.cta h2{font-size:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}