@charset "UTF-8";
:root{--ink:#192b32;--muted:#66757b;--line:#dfe6e5;--paper:#fcfcf9;--dark:#111e25;--cyan:#94e4cc;--teal:#136e63;--sans:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--mono:"Cascadia Code",Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:0}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a,button,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #299d87;outline-offset:5px}img{max-width:100%;height:auto;display:block}button,summary{cursor:pointer}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.45}button{border:0}::selection{background:#a4e9d5;color:#132d29}.container{width:min(1180px,calc(100% - 80px));margin-inline:auto}.section{padding:94px 0}section[id],details[id]{scroll-margin-top:100px}.skip-link{position:fixed;left:20px;top:-80px;background:var(--cyan);color:var(--dark);padding:10px 20px;z-index:100}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(252,252,249,.97);border-bottom:1px solid var(--line)}.header-inner{height:88px;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:23px;font-weight:750;letter-spacing:1.5px;line-height:1.2;white-space:nowrap}.brand-sub{display:block;font-size:10px;line-height:1.8;font-weight:400;letter-spacing:2.5px;color:var(--muted);margin-top:5px}.site-header nav{display:flex;align-items:center;justify-content:center;gap:25px;margin-left:auto}.site-header nav a{font-size:13px;position:relative;white-space:nowrap;padding:30px 0;color:#526269}.site-header nav a::after{content:"";position:absolute;height:2px;background:var(--teal);left:0;bottom:18px;right:100%;transition:right .2s}.site-header nav a.active,.site-header nav a:hover{color:var(--teal)}.site-header nav a.active::after,.site-header nav a:hover::after{right:0}.header-link{font-size:12px;white-space:nowrap;border:1px solid #cdd8d5;padding:8px 13px;border-radius:4px}.header-link span{margin-left:8px}.header-link:hover{background:#eaf5ef}.menu-toggle{display:none}
.hero{color:#f6f8f4;background:var(--dark);position:relative;overflow:hidden}.hero::before{content:"";position:absolute;width:660px;height:660px;border:1px solid #263a40;border-radius:50%;right:-330px;top:-380px;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.06fr 1fr;align-items:center;min-height:620px;gap:22px;padding-top:40px;padding-bottom:38px}.hero-copy{position:relative;z-index:1}.eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:1.7px;color:#afc4c4;display:flex;align-items:center;gap:11px;margin-bottom:26px}.eyebrow-line{height:1px;width:24px;background:#617679}.status-dot{width:6px;height:6px;flex-shrink:0;border-radius:50%;background:var(--cyan);display:inline-block}.hero h1{font-size:58px;letter-spacing:-1px;line-height:1.25;font-weight:750}.hero h1>span{display:block;font-size:34px;line-height:1.55;letter-spacing:1px;margin-top:15px;font-weight:450;color:#e1e8e5}.hero-description{font-size:14px;line-height:2;color:#acbdc1;margin-top:22px;max-width:440px}.hero-actions{display:flex;gap:12px;margin-top:31px}.button{display:inline-flex;align-items:center;justify-content:center;gap:23px;min-height:48px;padding:12px 19px;font-size:13px;font-weight:600;border-radius:4px;transition:background .2s,transform .2s;white-space:nowrap}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--cyan);color:#13362e}.button-primary:hover{background:#b0f2de}.button-outline{border:1px solid #52686c;color:#d9e5e2;background:transparent}.button-outline:hover{background:#22343b}.hero-topic{display:flex;gap:12px;align-items:center;font-size:11px;margin-top:30px;color:#b1dcd0}.topic-symbol{font-size:20px;color:var(--cyan)}.muted{color:#788e94}.hero-topic>span:last-child{margin-left:4px}.hero-art{position:relative;margin-right:-35px}.hero-art img{width:100%}.art-caption{display:block;text-align:center;font-family:var(--mono);font-size:9px;letter-spacing:3px;color:#607f84;margin-top:-16px}.technology-row{display:flex;align-items:center;gap:32px;border-top:1px solid #2a3a40;min-height:84px}.technology-label{font-size:11px;color:#7e969d}.tech-tags{display:flex;gap:28px;font-family:var(--mono);font-size:12px;color:#c3d3d4}.scroll-cue{font-size:11px;letter-spacing:1px;color:#8caaad;margin-left:auto}.scroll-cue span{margin-left:12px}
.section-kicker{font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:2px;color:var(--teal);display:block;margin-bottom:18px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:35px}h2{font-size:30px;letter-spacing:-.7px;font-weight:700}h2>span{font-size:24px;font-weight:450;letter-spacing:-.2px}.section-note{color:#7c8c8e;font-size:12px;letter-spacing:1px;white-space:nowrap;padding-bottom:6px}.heading-aside{font-size:13px;color:var(--muted);line-height:1.9;padding-bottom:4px}.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;color:#66747a;font-size:14px;line-height:2;margin-bottom:38px}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:21px}.editorial-card{padding:28px 26px 20px;background:#fff;border:1px solid var(--line);border-radius:7px;display:flex;flex-direction:column;transition:transform .2s,border-color .2s}.editorial-card:hover{transform:translateY(-4px);border-color:#8db9ac}.article-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:19px}.label{display:inline-block;font-size:10px;color:var(--teal);background:#eaf4ee;padding:2px 8px;border-radius:3px;letter-spacing:.4px}.article-number{font:11px var(--mono);color:#a9b5b6}.editorial-card h3{font-size:18px;line-height:1.65;font-weight:650;margin-bottom:17px;min-height:89px;letter-spacing:-.2px}.editorial-card>p{font-size:12px;color:#64737a;line-height:2.05;flex:1}.article-meta{border-top:1px solid #edf0ed;padding-top:16px;margin-top:26px;display:flex;justify-content:space-between;gap:8px;font-size:9px;color:#8c979a}.article-meta time{font-family:var(--mono)}
.download-section{background:#eff4f3;border-top:1px solid #e3eae7;border-bottom:1px solid #e3eae7}.download-notice{display:flex;align-items:center;gap:11px;color:#536c69;font-size:12px;margin-bottom:25px}.info-icon{width:18px;height:18px;border:1px solid #87a8a0;border-radius:50%;font-family:Georgia,serif;text-align:center;font-size:12px;line-height:17px;flex-shrink:0}.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.device-card{position:relative;background:#fcfefb;padding:29px 26px 22px;border:1px solid #dbe5df;border-radius:7px}.device-kind{display:block;font:9px var(--mono);letter-spacing:1.5px;color:#7a9291;margin-top:23px;margin-bottom:9px}.device-card h3{font-size:18px;margin-bottom:16px}.device-card>p{font-size:12px;color:#677778;line-height:2.05}.device-details{margin-top:22px;border-top:1px solid var(--line)}.device-details summary{list-style:none;padding-top:17px;color:var(--teal);font-size:12px;display:flex;justify-content:space-between;gap:10px;align-items:center}.device-details summary::-webkit-details-marker{display:none}.device-details[open] summary>span{transform:rotate(90deg)}.device-details>div{font-size:12px;color:#526d68;line-height:1.9;padding:12px 0 0}.device-details ol{margin:0;padding-left:18px}.device-details li+li{margin-top:9px}.section-footnote{font-size:11px;color:#83908d;margin-top:25px;display:flex;justify-content:space-between;gap:20px}.section-footnote a{color:var(--teal);white-space:nowrap}
.steps{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;margin:40px 0 0;padding:0;gap:30px}.steps li{position:relative;border-top:1px solid #cbd9d3;padding-top:25px}.steps li::before{content:"";width:6px;height:6px;background:#3b8a76;position:absolute;top:-4px;left:0;border-radius:50%}.step-number{font-family:var(--mono);color:#7fa89a;font-size:25px;font-weight:300}.steps h3{font-size:16px;margin-top:16px;margin-bottom:10px}.steps p{font-size:12px;color:#73807d;line-height:1.95}.register-note{background:#f0f4ef;padding:11px 15px;font-size:11px;color:#708177;border-left:2px solid #83b29a;margin-top:30px}.two-column{display:grid;grid-template-columns:1fr 1fr;gap:45px}.register-articles{margin-top:40px}.text-article h3{font-size:18px;margin:14px 0}.text-article p{font-size:12px;line-height:2.1;color:#697977}
.app-section{background:#f0f1ed;border-top:1px solid #e3e7e0}.app-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.app-intro>p{font-size:13px;color:#7a8781;margin-top:21px;max-width:320px}.phone-illustration{height:310px;position:relative;margin-top:30px;display:flex;justify-content:center;align-items:center;max-width:355px}.phone-illustration::before{content:"";position:absolute;width:255px;height:255px;border:1px solid #d5e0d7;border-radius:50%}.phone{position:relative;width:167px;height:280px;transform:rotate(-7deg);background:#182c30;border-radius:24px;border:5px solid #d5dfd8;box-shadow:19px 18px 0 #dfe6df;padding:19px 14px;color:#e8f2e7}.phone-bar{position:absolute;top:8px;left:62px;width:35px;height:4px;background:#6a817a;border-radius:4px}.phone-brand{font-family:var(--mono);font-size:10px;color:#93dabc;margin-top:10px}.phone-brand>span{font-size:8px;color:#91aaa4}.phone-tag{font:6px var(--mono);letter-spacing:1.2px;margin-top:22px;color:#91b5a6}.phone-title{font-size:24px;line-height:1.4;margin-top:9px}.phone-code{font:7px/2 var(--mono);margin-top:17px;background:#223b3c;padding:10px;border-radius:5px;color:#abc6bb}.phone-code span{color:#75aa91}.phone-bottom{display:flex;gap:26px;justify-content:center;margin-top:18px}.phone-bottom i{width:6px;height:6px;border:1px solid #a7bdb6;border-radius:2px}.phone-orbit{position:absolute;display:flex;align-items:center;justify-content:center;border:1px solid #cddccf;background:#f9fbf6;border-radius:9px;color:#4f8f74;font-family:var(--mono)}.orbit-one{width:46px;height:46px;left:35px;top:50px;transform:rotate(-12deg)}.orbit-two{width:38px;height:38px;right:22px;bottom:60px;transform:rotate(12deg)}.app-intro .app-note{font-size:10px;line-height:1.9;max-width:355px;text-align:center;margin-top:16px;color:#849189}.mobile-guides article{display:flex;gap:23px;padding:26px 0;border-bottom:1px solid #d7dfd7}.mobile-guides article:first-child{padding-top:0}.mobile-guides article:last-child{border-bottom:0;padding-bottom:0}.guide-index{font:11px var(--mono);color:#79a48c;padding-top:5px}.mobile-guides h3{font-size:18px;margin-bottom:12px}.mobile-guides p{font-size:12px;line-height:2.1;color:#6a7b72}
.ai-section{background:var(--dark);color:#eff4ed}.ai-section .section-kicker{color:var(--cyan)}.ai-heading{display:flex;justify-content:space-between;align-items:center;gap:40px;margin-bottom:34px}.ai-heading>div>p{font-size:13px;color:#8ea8ab;margin-top:22px}.ai-heading>img{width:270px;margin-right:28px}.ai-heading h2>span{color:#b9d0cc}.ai-articles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #32444b;border-bottom:1px solid #32444b}.ai-articles article{padding:30px 27px 31px}.ai-articles article:first-child{padding-left:0}.ai-articles article:last-child{padding-right:0}.ai-articles article+article{border-left:1px solid #32444b}.ai-category{font:9px var(--mono);color:#73bcaa;letter-spacing:.8px}.ai-articles h3{font-size:19px;line-height:1.65;margin-top:18px;margin-bottom:18px;min-height:94px;font-weight:550}.ai-articles p{font-size:12px;line-height:2.15;color:#9aafb3}.tag-row{display:flex;gap:8px;flex-wrap:wrap}.tag-row>span{font-size:9px;border:1px solid #d9e5df;background:#f1f6f2;color:#648575;padding:1px 7px;border-radius:3px}.ai-articles .tag-row{margin-top:23px}.ai-articles .tag-row>span{border-color:#3d5555;background:#1b3035;color:#9abfb1}.code-example{margin-top:35px;border:1px solid #365052;background:#15292f;border-radius:6px;position:relative}.code-example-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:13px 21px;border-bottom:1px solid #2a4349;font-size:11px;color:#acc9c2}.code-example-heading>span{display:flex;align-items:center;gap:10px}.code-language{font:10px var(--mono);color:#607f86}.code-example button{background:transparent;color:#9dd8c4;font-size:10px;padding:2px 5px}.code-example button:hover{color:#d5ffec}.code-example pre{margin:0;overflow-x:auto;padding:20px 24px 24px;font:11px/1.9 var(--mono);color:#91abae;tab-size:2}.copy-status{display:block;padding:0 24px;font-size:10px;color:var(--cyan)}.copy-status:not(:empty){padding-bottom:14px}.ai-reference{display:flex;gap:10px;font-size:10px;margin-top:20px;color:#68888e;flex-wrap:wrap}.ai-reference a{color:#a1c9b9;text-decoration:underline;text-underline-offset:3px}.ai-reference>span{margin-left:auto}
.news-update{font-family:var(--mono);font-size:10px;color:#5d8076;text-align:right;line-height:1.7}.news-update .status-dot{background:#52957d;margin-right:5px}.news-update small{display:block;font:10px var(--sans);color:#97a39e;margin-top:8px}.news-list{border-top:1px solid #cbd8d0}.news-item{display:grid;grid-template-columns:110px 1fr;gap:30px;padding:33px 0;border-bottom:1px solid #dfe6df}.news-date{font-family:var(--mono);display:flex;flex-direction:column;line-height:1.2}.news-date strong{font-size:39px;font-weight:300;color:#697e73}.news-date span{font-size:10px;color:#8f9e95;margin-top:8px}.news-body h3{font-size:21px;font-weight:600;margin:13px 0;line-height:1.55}.news-body h3 a{transition:color .2s}.news-body h3 a:hover{color:var(--teal)}.news-body h3 span{font-size:17px;color:#799b87;margin-left:7px}.news-body p{font-size:12px;line-height:2;color:#6f7d76;max-width:880px}.source-link{display:inline-block;margin-top:13px;font-size:10px;color:#6b9180}.source-link:hover{text-decoration:underline;text-underline-offset:3px}
.faq-section{background:#f0f4f0;border-top:1px solid #e2e8df}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:90px}.faq-grid>div>p{font-size:13px;color:#7b8c81;margin-top:23px}.text-link{display:inline-block;font-size:11px;color:var(--teal);margin-top:25px}.faq-list{border-top:1px solid #cbd9cd}.faq-list details{border-bottom:1px solid #cbd9cd}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:20px;list-style:none;font-size:14px;font-weight:550;padding:22px 0}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{color:#5e8e76;font-size:22px;font-weight:300;transition:transform .2s}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{font-size:12px;color:#697f70;line-height:2.1;padding:0 25px 23px 0}.closing-band{background:#a4dfc7;padding:42px 0}.closing-band>.container{display:flex;justify-content:space-between;gap:30px;align-items:center}.closing-band .section-kicker{font-size:9px;color:#2b705a;margin-bottom:9px}.closing-band p{font-size:24px;font-weight:550;letter-spacing:-.6px;color:#1f4c3c}.button-dark{background:#1b3536;color:#dff2e4;font-size:12px}.button-dark:hover{background:#294e4b}.site-footer{background:#122329;color:#9aafb0;padding:45px 0 21px}.footer-top{display:flex;align-items:center;gap:40px;padding-bottom:30px;border-bottom:1px solid #2d4347;margin-bottom:23px}.site-footer .brand{font-size:20px;color:#e3eee6}.site-footer .brand-sub{font-size:9px;color:#819f9d;letter-spacing:1px}.footer-top nav{display:flex;gap:25px;margin-left:auto;font-size:11px;color:#a1b9b5}.footer-top a:hover{color:#beebd6}.back-top{font-size:10px;color:#789d96;margin-left:30px}.independent-statement,.footer-sources{font-size:10px;line-height:2;color:#7c9697;max-width:1030px}.footer-sources{margin-top:8px;color:#668589}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid #253e43;padding-top:19px;margin-top:27px;font-size:9px;color:#597e81;gap:20px}.footer-divider{padding:0 10px;color:#345a5c}
@media(min-width:1500px){.hero-grid{min-height:670px}.hero h1{font-size:64px}.hero h1>span{font-size:38px}.hero-art{margin-right:-50px}}
@media(max-width:1150px){.container{width:calc(100% - 56px)}.header-inner{gap:20px}.site-header nav{gap:18px}.header-link{padding:7px 10px}.hero h1{font-size:51px}.hero h1>span{font-size:30px}.hero-actions{gap:9px}.button{gap:15px;padding-inline:15px;font-size:12px}.tech-tags{gap:20px}.technology-row{gap:20px}.app-grid{gap:60px}.faq-grid{gap:60px}.editorial-card{padding-inline:21px}.editorial-card h3{font-size:17px}.article-meta{font-size:8px}.ai-articles h3{font-size:18px}.ai-articles article{padding-inline:23px}}
@media(max-width:1050px){.header-inner{height:77px}.brand{font-size:21px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;order:3;width:36px;height:40px;background:transparent;padding:7px;margin-left:0;color:var(--ink)}.menu-toggle span{display:block;width:22px;height:1.5px;background:currentColor;transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}.header-link{margin-left:auto}.site-header nav{display:none;position:absolute;top:77px;left:0;right:0;background:var(--paper);padding:12px 28px 22px;border-bottom:1px solid var(--line);box-shadow:0 14px 20px #132a2510;margin:0;gap:0}.site-header nav.is-open{display:grid;grid-template-columns:repeat(3,1fr)}.site-header nav a{padding:13px 10px;text-align:center;font-size:14px}.site-header nav a::after{display:none}.hero-grid{min-height:565px;gap:0}.hero h1{font-size:44px}.hero h1>span{font-size:27px}.hero-description{font-size:12px}.hero-topic{font-size:10px;gap:9px}.hero-actions{flex-wrap:wrap}.hero-art{margin-right:-20px}.art-caption{font-size:7px}.technology-label{display:none}.technology-row{min-height:72px}.section{padding:75px 0}.editorial-card h3{min-height:100px;font-size:16px}.article-grid{gap:15px}.article-meta{flex-direction:column;gap:2px}.device-card{padding:25px 21px}.device-card h3{font-size:16px}.section-footnote{display:block}.section-footnote a{display:inline-block;margin-top:7px}.ai-heading>img{width:230px;margin-right:0}.ai-articles h3{min-height:110px;font-size:17px}.app-grid{gap:40px}.ai-reference>span{margin-left:0}.steps{gap:23px}.steps h3{font-size:15px}.footer-top{gap:25px}.back-top{margin-left:0}}
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