@charset "UTF-8";
:root{--blue:#0759ed;--ink:#102542;--muted:#697b92;--line:#e4ebf5;--light:#f5f8fe}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);background:white;font-size:15px;line-height:1.75}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #70a7ff;outline-offset:5px}button.inert{cursor:default}.wrap{max-width:1180px;margin:auto;padding:0 28px}.header{height:86px;border-bottom:1px solid #edf1f8;background:#ffffffed;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.nav{display:flex;align-items:center;justify-content:space-between;height:100%;gap:26px}.brand{display:flex;gap:11px;align-items:center;white-space:nowrap}.brand img{width:39px;height:39px}.brand strong{font-size:25px;letter-spacing:-1px}.brand small{font-size:11px;color:#8c9bb0;letter-spacing:2px;display:block;line-height:1}.navlinks{display:flex;gap:30px;align-items:center;font-size:14px}.navlinks a{position:relative;padding:29px 0;color:#5a6c83}.navlinks a:hover,.navlinks a.active{color:var(--blue)}.navlinks a.active:after{content:"";position:absolute;bottom:17px;height:3px;background:var(--blue);left:35%;right:35%;border-radius:5px}.actions{display:flex;align-items:center;gap:22px}.login{border:0;background:transparent;color:#52637a;font-size:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid transparent;border-radius:9px;padding:13px 24px;font-weight:600;font-size:14px;line-height:1.5;background:var(--blue);color:#fff;box-shadow:0 7px 18px #0759ed1c}.btn.secondary{background:#fff;border-color:#d8e2f0;color:#344b6b;box-shadow:none}.menu{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:5px 12px}.hero{overflow:hidden;position:relative;background:linear-gradient(115deg,#f9fbff 0%,#f0f6ff 58%,#eaf2ff 100%)}.hero:after{content:"";position:absolute;width:650px;height:650px;border:1px solid #d9e6ff;border-radius:50%;right:-270px;top:-170px;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1fr 1.04fr;gap:35px;align-items:center;min-height:645px;padding-top:58px;padding-bottom:65px;position:relative;z-index:1}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:1px;color:var(--blue);background:#e7efff;border:1px solid #dbe7ff;border-radius:30px;padding:5px 13px}.dot{width:6px;height:6px;background:#1f74ff;border-radius:50%;box-shadow:0 0 0 4px #d4e4ff}h1{font-size:53px;line-height:1.24;letter-spacing:-2px;margin:25px 0 22px;font-weight:750}h1 span{color:var(--blue)}.hero-copy>p{max-width:460px;color:#687b94;font-size:16px;line-height:1.95}.hero-buttons{display:flex;gap:14px;margin:29px 0 23px}.platforms{display:flex;align-items:center;gap:18px;font-size:12px;color:#6f8098}.platforms span{display:flex;gap:6px;align-items:center}.micro{font-size:11px;color:#8a9ab0;letter-spacing:.4px;margin-top:24px}.hero-art{height:440px;position:relative;display:flex;align-items:center;justify-content:center}.orbit{position:absolute;width:440px;height:440px;border:1px dashed #bed3f7;border-radius:50%;transform:rotate(-18deg)}.orbit:after{content:"";position:absolute;inset:38px;border:1px solid #d9e6ff;border-radius:50%}.float-tag{position:absolute;display:flex;align-items:center;gap:9px;background:#fff;border:1px solid #e6edfa;border-radius:12px;padding:10px 16px;font-size:12px;box-shadow:0 10px 30px #29549c0c;z-index:4}.float-tag.top{top:15px;left:35px}.float-tag.bottom{bottom:13px;right:0}.green{color:#19a682}.desktop{width:440px;background:#fff;border:1px solid #d9e4f5;border-radius:16px;box-shadow:0 32px 70px #2a559a21;position:relative;transform:perspective(1000px) rotateY(-7deg);z-index:2;overflow:hidden}.windowbar{height:37px;display:flex;align-items:center;gap:5px;padding:0 15px;border-bottom:1px solid #edf1f7;font-size:10px;color:#91a0b6}.windowbar i{height:6px;width:6px;border-radius:50%;background:#dce4ef}.windowbar span{margin:auto}.appbody{display:grid;grid-template-columns:100px 1fr;height:275px}.appside{background:#f8faff;padding:20px 13px;font-size:9px;color:#8c9ab0;border-right:1px solid #edf1f8}.appside .brand{gap:5px;margin-bottom:26px}.appside .brand img{height:22px;width:22px}.appside .brand strong{font-size:14px;color:var(--ink)}.appside p{padding:6px 8px}.appside .selected{background:#e7efff;color:var(--blue);border-radius:5px}.appmain{text-align:center;padding:22px 25px}.appmain .status{font-size:10px;color:#8e9ab1}.power{margin:16px auto 14px;width:96px;height:96px;background:linear-gradient(135deg,#edf5ff,#dceaff);border:7px solid #f1f6ff;border-radius:50%;display:grid;place-items:center;box-shadow:0 0 0 1px #e0ebfb}.power svg{height:32px;width:32px;color:var(--blue)}.appmain strong{font-size:15px}.server{display:flex;margin-top:18px;align-items:center;justify-content:space-between;border:1px solid #e8eef8;border-radius:6px;padding:8px;font-size:9px;color:#7185a2}.phone{position:absolute;bottom:24px;right:-5px;background:white;border:5px solid #e1e8f3;border-radius:25px;width:128px;height:238px;box-shadow:0 20px 40px #31578924;z-index:3;text-align:center;padding:18px 8px}.phone:before{content:"";display:block;width:40px;height:6px;background:#e1e8f3;border-radius:9px;margin:-10px auto 24px}.phone .power{height:68px;width:68px;border-width:5px}.phone strong{font-size:12px}.phone p{font-size:8px;color:#8a9ab0}.phone-line{height:6px;width:65px;background:#edf3fd;margin:13px auto;border-radius:5px}.trustbar{border-bottom:1px solid var(--line)}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);padding-top:24px;padding-bottom:24px}.trust-item{display:flex;align-items:center;justify-content:center;gap:12px;border-right:1px solid var(--line)}.trust-item:last-child{border:0}.trust-item svg{color:#3b77d9;width:23px;height:23px}.trust-item strong{font-size:13px;display:block}.trust-item small{color:#8b99ad;font-size:10px}.section{padding:87px 0}.section.soft{background:#f7f9fd}.section-label{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--blue);margin-bottom:9px}.section h2{font-size:33px;line-height:1.45;letter-spacing:-.8px;margin:0 0 15px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}.section-head p{color:var(--muted);font-size:14px;max-width:430px;margin:0}.text-link{color:var(--blue);font-size:13px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{padding:30px;border:1px solid var(--line);border-radius:15px;background:#fff}.iconbox{display:grid;place-items:center;height:47px;width:47px;background:#edf3ff;border-radius:12px;color:var(--blue);margin-bottom:24px}.iconbox svg{width:23px;height:23px}.card h3{font-size:18px;margin:0 0 11px}.card p{font-size:13px;color:var(--muted);margin:0;line-height:1.9}.card .tag{font-size:10px;letter-spacing:1px;color:#8a9db7;margin-top:25px}.split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px}.split p{color:var(--muted);font-size:14px}.security-art{min-height:330px;display:flex;align-items:center;justify-content:center;border-radius:22px;background:radial-gradient(circle,#e1eeff 0,#f1f6ff 55%,#f8faff 75%);position:relative}.shield-big{width:150px;height:175px;color:var(--blue);filter:drop-shadow(0 16px 20px #0759ed20)}.security-chip{position:absolute;padding:9px 14px;border:1px solid #e2eafa;border-radius:9px;background:white;font-size:11px;color:#537096}.security-chip:nth-child(2){left:16px;top:45px}.security-chip:nth-child(3){right:10px;bottom:45px}.checks{padding:0;list-style:none;margin:23px 0}.checks li{margin:10px 0;font-size:13px;color:#55708f}.checks li:before{content:"✓";color:var(--blue);margin-right:10px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;counter-reset:steps}.step{position:relative;border-top:1px solid #d8e4f6;padding-top:27px}.step:before{counter-increment:steps;content:"0" counter(steps);font-size:12px;font-weight:bold;color:var(--blue);background:#f7f9fd;position:absolute;top:-14px;padding:2px 12px 2px 0}.step h3{font-size:17px;margin:0 0 10px}.step p{color:var(--muted);font-size:13px}.faq{max-width:820px;margin:auto}.center{text-align:center}.center p{color:var(--muted);font-size:14px}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;list-style:none;font-size:15px;font-weight:600;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:"+";color:var(--blue);font-size:19px}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);font-size:13px;padding-right:35px}.cta{padding:43px 48px;border:1px solid #dce8fc;border-radius:20px;background:linear-gradient(110deg,#f3f7ff,#eaf2ff);display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:27px;margin:0 0 5px}.cta p{font-size:13px;color:var(--muted);margin:0}.footer{background:#f8fafd;border-top:1px solid var(--line);padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}.footer .brand img{width:31px;height:31px}.footer .brand strong{font-size:22px}.footer p{color:#8b9bb0;font-size:12px;max-width:240px}.footer h3{font-size:13px;margin:0 0 18px}.footer-links a{display:block;color:#7c8da4;font-size:12px;margin:10px 0}.footer-links a:hover{color:var(--blue)}.copyright{margin-top:38px;border-top:1px solid var(--line);padding-top:19px;display:flex;justify-content:space-between;color:#96a4b7;font-size:10px}.page-hero{padding:67px 0 61px;background:linear-gradient(110deg,#f9fbff,#edf4ff);text-align:center}.page-hero h1{font-size:43px;margin:18px 0}.page-hero p{font-size:15px;color:var(--muted);max-width:660px;margin:auto}.breadcrumbs{font-size:11px;color:#8a9bb1;margin-bottom:23px}.download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.download-card{padding:30px 23px;border-radius:15px;border:1px solid var(--line);background:white;display:flex;flex-direction:column;align-items:flex-start}.download-card.featured{border-color:#85adff;box-shadow:0 12px 35px #0759ed0b}.os-icon{height:58px;width:58px;display:grid;place-items:center;background:#edf4ff;color:var(--blue);border-radius:15px;font-size:27px;margin-bottom:20px}.download-card h2{font-size:21px;margin:0 0 5px}.download-card p{font-size:12px;color:var(--muted);min-height:66px;margin:8px 0 22px}.download-card .btn{width:100%;padding:11px 10px;font-size:12px}.download-card small{margin-top:15px;font-size:10px;color:#91a1b7}.notice{margin-top:26px;padding:17px 22px;border-radius:10px;background:#f5f8fe;font-size:12px;color:#7386a0}.article{max-width:850px;margin:auto}.article h2{font-size:23px;margin:35px 0 14px}.article h3{font-size:17px}.article p,.article li{font-size:14px;color:var(--muted);line-height:2}.article .card{margin-top:22px}.topic-label{font-size:11px;color:var(--blue);margin:40px 0 0;letter-spacing:1px}.help-grid{display:grid;grid-template-columns:1fr 2fr;gap:65px}.help-aside{position:sticky;top:125px;align-self:start;background:#f6f9ff;border:1px solid var(--line);border-radius:14px;padding:25px}.help-aside a{display:block;font-size:13px;color:#647b98;padding:10px 0}.help-aside strong{font-size:15px}.help-aside p{color:#8b9db5;font-size:12px}.widefaq{max-width:none}.legal-note{font-size:11px;color:#92a2b7;margin-top:25px}@media(min-width:1500px){.hero-grid{min-height:690px}}@media(max-width:1050px){.navlinks{gap:19px}.actions{gap:10px}.actions .login{display:none}h1{font-size:45px}.hero-grid{gap:10px}.desktop{width:380px}.phone{right:-10px}.orbit{width:360px;height:360px}.download-grid{grid-template-columns:repeat(2,1fr)}.split{gap:45px}.hero-art{transform:scale(.94)}}@media(max-width:760px){.wrap{padding-left:22px;padding-right:22px}.header{height:72px}.brand img{width:34px;height:34px}.brand strong{font-size:23px}.actions>.btn{display:none}.menu{display:block}.navlinks{display:none;position:absolute;top:72px;left:0;right:0;background:white;padding:15px 24px;box-shadow:0 12px 20px #1025420b}.navlinks.open{display:flex;flex-direction:column;align-items:stretch;gap:0}.navlinks a{padding:12px}.navlinks a.active:after{display:none}.hero-grid{grid-template-columns:1fr;padding-top:45px;padding-bottom:25px;gap:8px}.hero-copy>p{max-width:100%;font-size:14px}h1{font-size:42px;letter-spacing:-1px}.hero-art{height:360px;max-width:420px;width:100%;margin:auto;transform:scale(.92)}.desktop{width:95%}.phone{right:-4px;bottom:0;width:113px;height:210px}.float-tag.top{left:0;top:0}.float-tag.bottom{bottom:0;right:95px;font-size:10px;padding:7px 10px}.appbody{grid-template-columns:88px 1fr;height:250px}.appmain{padding:15px}.trust-grid{grid-template-columns:repeat(2,1fr);gap:23px 5px}.trust-item{justify-content:start;border:0;padding-left:10px}.section{padding:58px 0}.section h2{font-size:27px}.section-head{align-items:start;flex-direction:column;gap:12px}.features{grid-template-columns:1fr}.card{padding:26px}.iconbox{margin-bottom:17px}.split{grid-template-columns:1fr;gap:32px}.security-art{min-height:280px}.steps{grid-template-columns:1fr;gap:32px}.step p{margin-bottom:0}.cta{padding:29px;flex-direction:column;align-items:start}.cta h2{font-size:24px}.footer-grid{grid-template-columns:repeat(3,1fr);gap:30px 15px}.footer-intro{grid-column:1/-1}.copyright{flex-direction:column;gap:8px}.download-grid{grid-template-columns:1fr 1fr;gap:12px}.download-card{padding:22px 17px}.page-hero{padding:43px 0}.page-hero h1{font-size:34px}.page-hero p{font-size:14px}.help-grid{grid-template-columns:1fr;gap:20px}.help-aside{position:static}.help-aside a{display:inline-block;margin-right:15px}.platforms{gap:13px}.hero-buttons .btn{padding:13px 18px}.micro{font-size:10px}.orbit{max-width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}