@charset "UTF-8";
:root{--blue:#0968f6;--dark:#102b48;--muted:#65788f;--line:#e7edf5;--pale:#f5f9ff;--green:#1cae87}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--dark);background:#fff;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #74aaff;outline-offset:5px}button{cursor:pointer}.wrap{width:min(1180px,calc(100% - 80px));margin:auto}.header{height:88px;background:#ffffffed;border-bottom:1px solid #edf2f8;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.header-inner{height:100%;display:flex;align-items:center;gap:36px}.brand{display:flex;align-items:center;gap:11px;font-size:27px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.brand img{width:42px;height:42px}.brand small{font-size:11px;letter-spacing:2px;color:#8a9bb0;margin-left:4px;font-weight:500}.nav{display:flex;gap:30px;align-items:center;margin-left:auto;font-size:14px}.nav a{padding:33px 0;position:relative;color:#4f6178}.nav a:hover,.nav a.active{color:var(--blue)}.nav a.active:after{content:"";position:absolute;bottom:20px;left:calc(50% - 8px);height:3px;width:16px;border-radius:4px;background:var(--blue)}.header-actions{display:flex;align-items:center;gap:20px}.plain{border:0;background:none;color:#536982;padding:10px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--blue);color:#fff;border:1px solid var(--blue);border-radius:50px;padding:16px 28px;font-size:15px;font-weight:600;min-height:54px;box-shadow:0 8px 18px #0968f61c;transition:transform .2s,background .2s}.btn:hover{background:#0059dd;transform:translateY(-2px)}.btn.small{padding:11px 22px;min-height:44px;font-size:13px}.btn.secondary{color:var(--dark);background:#fff;border-color:#d9e5f5;box-shadow:none}.btn.secondary:hover{border-color:#86b5fa;background:#f5faff}.arrow{font-size:20px;font-weight:400}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px;font-size:20px}.hero{background:linear-gradient(110deg,#f8fbff 5%,#edf5ff 75%,#e6f0ff);overflow:hidden;position:relative}.hero:before{content:"";position:absolute;width:700px;height:700px;border:1px solid #d7e7fc;border-radius:50%;right:-310px;top:-230px;box-shadow:0 0 0 80px #ffffff20,0 0 0 160px #ffffff20}.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;align-items:center;min-height:650px;gap:14px;position:relative}.eyebrow{display:inline-flex;gap:9px;align-items:center;font-size:12px;letter-spacing:.5px;font-weight:600;color:var(--blue);background:#e6f0ff;border:1px solid #dbe9fc;border-radius:30px;padding:9px 14px}.dot{width:6px;height:6px;border-radius:50%;background:var(--blue)}h1{font-size:60px;line-height:1.23;letter-spacing:-2px;margin:24px 0 22px;font-weight:800}h1 em{font-style:normal;color:var(--blue)}.hero-copy>p{max-width:450px;color:#60768e;font-size:16px;line-height:1.95;margin:0 0 28px}.hero-copy .actions{display:flex;gap:14px;flex-wrap:wrap}.platforms{display:flex;align-items:center;gap:20px;font-family:Arial,sans-serif;color:#7589a1;font-size:12px;margin-top:26px}.platforms span{display:flex;align-items:center;gap:6px}.platforms b{font-size:16px;color:#466d9b}.hero-art{width:118%;max-width:none;margin-left:-5%;display:block}.art-caption{margin-top:-32px;text-align:center;font-size:10px;letter-spacing:2px;color:#8da1ba;position:relative}.intro-strip{border-bottom:1px solid var(--line)}.strip-inner{display:grid;grid-template-columns:repeat(4,1fr);padding:27px 0;gap:20px}.strip-item{display:flex;gap:13px;align-items:center;justify-content:center;border-right:1px solid var(--line)}.strip-item:last-child{border:0}.strip-item strong{font-size:14px;display:block}.strip-item small{display:block;color:#8b99ac;font-size:11px;margin-top:5px}.symbol{width:40px;height:40px;background:#edf5ff;display:grid;place-items:center;border-radius:12px;color:var(--blue);font-size:21px}.section{padding:96px 0}.section.soft{background:#f7faff}.section-head{text-align:center;margin-bottom:42px}.kicker{font-size:11px;font-weight:700;letter-spacing:2.5px;color:var(--blue);display:block;margin-bottom:14px}.section h2,.split h2{font-size:34px;line-height:1.4;letter-spacing:-1px;margin:0 0 15px}.section-head>p,.lead{color:var(--muted);font-size:14px;line-height:1.9;margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature{padding:33px 30px;border:1px solid var(--line);border-radius:20px;background:#fff;position:relative;transition:transform .2s,border-color .2s}.feature:hover{transform:translateY(-5px);border-color:#bcd6fc}.feature .symbol{width:49px;height:49px;font-size:25px;border-radius:15px;margin-bottom:25px}.feature h3{font-size:19px;margin:0 0 13px}.feature p{font-size:14px;line-height:1.85;color:var(--muted);margin:0}.feature .num{position:absolute;right:25px;top:32px;color:#c9d5e5;font-family:Arial;font-size:12px}.split{display:grid;grid-template-columns:1.05fr 1fr;gap:70px;align-items:center}.network-art{width:100%}.checks{display:grid;gap:18px;margin:27px 0}.check{display:flex;gap:12px;font-size:14px;align-items:flex-start;color:#5c7089;line-height:1.7}.check b{color:var(--green);font-size:15px}.text-link{display:inline-flex;align-items:center;gap:9px;color:var(--blue);font-size:14px;font-weight:600}.download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.platform-card{text-align:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:31px 20px}.os-icon{height:58px;display:grid;place-items:center;color:var(--blue);font-size:36px;font-family:Arial,sans-serif;font-weight:500;margin-bottom:16px}.os-icon svg{width:37px;height:37px;fill:currentColor}.platform-card h3{font-size:20px;margin:0 0 9px}.platform-card p{color:var(--muted);font-size:12px;line-height:1.8;margin:0 0 23px;min-height:43px}.platform-card .btn{font-size:13px;padding:11px 20px;min-height:44px;box-shadow:none}.platform-card small{display:block;margin-top:16px;font-size:11px;color:#93a0b2}.faq-list{max-width:850px;margin:auto}.faq-list details{padding:23px 0;border-bottom:1px solid var(--line)}.faq-list summary{font-size:16px;font-weight:600;list-style:none;cursor:pointer;padding-right:30px;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:0;top:-4px;color:var(--blue);font-size:25px;font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list details p{color:var(--muted);line-height:1.9;font-size:14px;margin:17px 32px 0 0}.faq-bottom{text-align:center;margin-top:30px}.cta{margin:15px auto 80px;padding:49px 60px;border:1px solid #dceaff;border-radius:25px;background:linear-gradient(110deg,#f0f6ff,#e5f0ff);display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:29px;margin:0 0 12px;letter-spacing:-.6px}.cta p{margin:0;color:#6c819a;font-size:14px}.footer{border-top:1px solid var(--line);padding:49px 0 25px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer .brand{font-size:23px}.footer .brand img{width:35px;height:35px}.footer p{font-size:12px;color:#8b99aa;line-height:1.9;max-width:290px}.footer h3{font-size:13px;margin:0 0 18px}.footer-links{display:grid;gap:13px;font-size:12px;color:#7a8ba0}.footer-links a:hover{color:var(--blue)}.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:22px;display:flex;justify-content:space-between;color:#96a3b4;font-size:11px}.page-hero{text-align:center;background:linear-gradient(125deg,#f7fbff,#eaf3ff);padding:64px 0 60px;position:relative}.page-hero h1{font-size:45px;margin:19px 0 16px;letter-spacing:-1.5px}.page-hero p{font-size:15px;color:var(--muted);line-height:1.9;max-width:620px;margin:auto}.breadcrumb{display:flex;align-items:center;gap:10px;font-size:12px;color:#95a4b7;padding-top:25px}.breadcrumb a{color:#547391}.download-page{padding:55px 0 80px}.download-page .platform-card{padding:35px 22px}.download-page .platform-card p{font-size:13px;min-height:50px}.notice{font-size:12px;line-height:1.9;color:#8192a8;background:#f7faff;border:1px solid var(--line);padding:16px 22px;border-radius:12px;margin-top:25px}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.step{padding:8px 0 8px 61px;position:relative}.step:before{counter-increment:step;content:"0" counter(step);position:absolute;left:0;top:3px;color:var(--blue);border:1px solid #dbe9fd;background:#edf5ff;border-radius:13px;width:43px;height:43px;display:grid;place-items:center;font-size:15px;font-weight:700}.step h3{font-size:17px;margin:0 0 12px}.step p{color:var(--muted);font-size:13px;line-height:1.9;margin:0}.guide-layout{display:grid;grid-template-columns:220px 1fr;gap:58px;padding:55px 0 85px}.guide-aside{position:sticky;top:125px;align-self:start;background:var(--pale);border-radius:16px;padding:23px;display:grid;gap:18px;font-size:13px;color:#647c98}.guide-aside strong{color:var(--dark);font-size:14px}.article-section{padding-bottom:38px;margin-bottom:36px;border-bottom:1px solid var(--line);scroll-margin-top:115px}.article-section:last-child{margin-bottom:0}.article-section h2{font-size:26px;margin:0 0 20px}.article-section h3{font-size:17px;margin:25px 0 12px}.article-section p,.article-section li{font-size:14px;color:var(--muted);line-height:1.95}.article-section ol{padding-left:22px}.article-section li{padding-left:6px;margin-bottom:10px}.faq-categories{display:flex;gap:10px;justify-content:center;margin:0 0 30px;flex-wrap:wrap}.faq-categories a{font-size:12px;background:#f2f7ff;border:1px solid #e0eafa;color:#4b74aa;padding:10px 20px;border-radius:30px}.question-group{max-width:850px;margin:0 auto 45px;scroll-margin-top:110px}.question-group h2{font-size:21px;margin-bottom:10px}.note{font-size:12px;color:#93a3b6;line-height:1.8}.back-top{position:fixed;bottom:25px;right:25px;display:none;border-radius:50%;width:43px;height:43px;background:#fff;border:1px solid #dbe7f7;box-shadow:0 5px 20px #234a7b13;color:var(--blue);font-size:20px;z-index:15}.back-top.visible{display:block}
@media(min-width:1500px){.hero-grid{min-height:710px}.hero-art{width:123%;margin-left:-5%}}@media(max-width:1100px){.wrap{width:calc(100% - 48px)}.nav{gap:20px}.header-inner{gap:22px}.brand small{display:none}.hero-grid{min-height:600px}h1{font-size:49px}.hero-art{width:115%}.platforms{gap:14px}.split{gap:30px}.header-actions{gap:15px}.nav{font-size:13px}.btn.small{padding:10px 18px}}@media(max-width:800px){.header{height:72px}.header-inner{gap:16px}.nav{display:none;position:absolute;top:71px;left:0;right:0;background:#fff;box-shadow:0 15px 20px #143b6710;padding:15px 25px;flex-direction:column;align-items:stretch;gap:0}.nav.open{display:flex}.nav a{padding:15px 0}.nav a.active:after{display:none}.menu-toggle{display:block;margin-left:auto}.header-actions .plain{display:none}.header-actions{margin-left:0}.header-actions .btn{min-height:38px;padding:8px 16px;font-size:12px}.brand{font-size:24px}.brand img{width:36px;height:36px}.hero-grid{grid-template-columns:1fr;gap:0;padding-top:52px;min-height:auto}.hero-copy{text-align:center}.hero-copy>p{margin:0 auto 25px;max-width:520px;font-size:15px}h1{font-size:47px}.hero-copy .actions,.platforms{justify-content:center}.hero-art{width:min(680px,110%);margin:-7px auto 0;transform:translateX(-2%)}.art-caption{margin-top:-32px;margin-bottom:35px}.strip-inner{grid-template-columns:1fr 1fr;gap:24px}.strip-item:nth-child(2){border:0}.feature-grid{grid-template-columns:1fr;gap:16px}.feature{padding:26px}.feature .symbol{margin-bottom:20px}.section{padding:65px 0}.section h2,.split h2{font-size:29px}.split{grid-template-columns:1fr;gap:25px}.network-art{max-width:520px;margin:auto}.download-grid{grid-template-columns:1fr 1fr;gap:15px}.cta{padding:34px;margin-bottom:55px;flex-direction:column;text-align:center;gap:25px}.cta h2{font-size:26px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:25px}.steps{grid-template-columns:1fr;gap:30px}.page-hero h1{font-size:36px}.guide-layout{grid-template-columns:1fr;gap:30px}.guide-aside{position:static;display:flex;flex-wrap:wrap;gap:17px}.guide-aside strong{width:100%}.page-hero{padding:48px 0}.copyright{gap:20px}.hero:before{right:-500px}}@media(max-width:480px){.wrap{width:calc(100% - 36px)}.header-inner{gap:10px}.header-actions .btn{padding:8px 12px}.brand{gap:8px}.brand img{width:33px;height:33px}.menu-toggle{font-size:17px;padding:6px 9px}h1{font-size:41px;letter-spacing:-1.5px}.hero-copy>p{font-size:14px}.eyebrow{font-size:11px}.hero-copy .btn{font-size:13px;padding:13px 23px;min-height:49px}.platforms{gap:13px;font-size:10px}.hero-art{width:116%;margin-left:-7%;transform:none}.strip-item{justify-content:flex-start;gap:9px}.strip-item strong{font-size:12px}.strip-item small{font-size:10px}.symbol{width:33px;height:33px;font-size:18px}.download-grid{gap:12px}.platform-card{padding:25px 12px}.platform-card h3{font-size:18px}.platform-card .btn{padding:10px 13px;font-size:12px}.platform-card p{font-size:11px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.copyright{flex-direction:column;gap:10px;font-size:10px}.page-hero h1{font-size:31px}.page-hero p{font-size:13px}.faq-list summary{font-size:14px;line-height:1.6}.faq-list details p{font-size:13px}.download-page .platform-card{padding:25px 12px}.download-page .platform-card p{font-size:11px}.download-page .platform-card small{font-size:10px}.section-head{margin-bottom:30px}.back-top{right:14px;bottom:16px}.cta{padding:32px 22px}.cta p{line-height:1.8;font-size:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.hero-art,.network-art{height:auto}
@media(min-width:801px){.hero-art{width:110%;margin-left:-6%}}
.page-hero h1{text-wrap:balance}
