:root{--blue:#087bff;--ink:#182230;--muted:#637184;--line:#e5eaf0;--surface:#f4f8ff;font-family:"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;font-synthesis:none;scroll-behavior:smooth;scroll-padding-top:36px}
*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}img{max-width:100%}p,h1,h2,h3{margin:0}p{line-height:1.8}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #087bff;outline-offset:5px}button:disabled{cursor:not-allowed;opacity:.5}.shell{width:min(1180px,calc(100% - 80px));margin:auto}.skip{position:absolute;top:-80px;left:16px;z-index:9;background:white;padding:12px}.skip:focus{top:16px}.header{height:106px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-size:23px;font-weight:750;letter-spacing:-.5px}.brand img{border-radius:10px}.header nav{display:flex;align-items:center;gap:36px;font-size:15px;font-weight:500}.nav-download{color:var(--blue)}.header a:hover,.documentation-link:hover{color:var(--blue)}.hero{min-height:625px;display:grid;grid-template-columns:1.05fr 1fr;gap:35px;align-items:center;padding:64px 0 86px}.eyebrow{font-size:12px;letter-spacing:1.5px;font-weight:650;color:#738097;line-height:1.5}.eyebrow span{display:inline-block;font-size:12px;letter-spacing:0;font-weight:500;margin-left:14px;padding-left:14px;border-left:1px solid #d4deec;color:#687689}h1{margin:25px 0 24px;font-size:clamp(58px,5.8vw,78px);line-height:1.2;font-weight:780;letter-spacing:-3.5px}h1 em{font-style:normal;color:var(--blue)}.hero-description{font-size:21px;line-height:1.7;color:var(--muted)}.hero-actions{display:flex;gap:14px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:13px;font-size:16px;font-weight:600;transition:background 160ms,transform 160ms}.button:active{transform:translateY(1px)}.primary{color:white;background:var(--blue)}.primary:hover{background:#006eec}.secondary{background:#edf4ff;color:#1267cb}.secondary:hover{background:#e2eeff}.hero-note{font-size:13px;color:#8190a3;margin-top:17px}.hero-art{padding-top:40px}.hero-art img{width:100%;height:auto;display:block}.route-label{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:30px;color:#7a8697;font-size:12px;letter-spacing:.25px;font-family:ui-monospace,"SFMono-Regular",monospace}.route-line{display:block;height:1px;background:#b5c9e3;width:50px}.connection-section{padding:76px 0 90px;border-top:1px solid var(--line)}.section-heading h2{font-size:clamp(32px,3vw,40px);line-height:1.4;letter-spacing:-1.5px;margin-top:16px;font-weight:700}.mode-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:100px;margin-top:44px}.tabs{display:flex;flex-direction:column;gap:12px}.tabs button{text-align:left;display:block;padding:21px 24px;border:0;border-left:3px solid transparent;border-radius:0;background:transparent;color:#8b94a2;font-size:23px;line-height:1.5;font-weight:600}.tabs button span{display:block;font-size:14px;font-weight:400;margin-top:4px}.tabs button[aria-selected=true]{border-left-color:var(--blue);color:var(--ink);background:#f4f8ff}.tabs button[aria-selected=true] span{color:var(--muted)}.mode-panel[hidden]{display:none}.mode-panel{padding:10px 0;min-height:275px}.mode-kicker{font-size:14px;color:var(--blue);font-weight:550}.mode-panel h3{font-size:25px;margin:10px 0 16px;letter-spacing:-.6px}.mode-panel>p:not(.mode-kicker):not(.small-note){font-size:16px;color:var(--muted)}.config-example{display:flex;gap:46px;margin:25px 0 13px}.config-example div{display:grid;gap:7px}.config-example span{font-size:11px;font-weight:600;letter-spacing:1px;color:#8794a7}.config-example code{font-size:20px;color:#1b334f}.small-note{font-size:13px;color:#8290a2}.auto-summary{display:flex;gap:22px;align-items:center;padding:22px 0;font-size:15px;color:#66758a}.auto-summary strong{color:var(--blue);font-weight:550}.download-section{background:var(--surface);padding:90px 0;scroll-margin-top:0}.download-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:100px}.download-section h2{font-size:43px;line-height:1.4;letter-spacing:-1.5px;margin:15px 0 22px}.section-description{font-size:19px;line-height:1.9;color:var(--muted)}.download-version{font-size:13px;color:#8190a3;margin-top:28px}.download-panel{background:#fff;border-radius:24px;padding:34px 36px}.download-title{display:flex;align-items:center;gap:15px}.download-title img{border-radius:13px}.download-title h3{font-size:23px;letter-spacing:-.6px}.download-title p{font-size:13px;color:#7d899a;margin-top:3px}.release-note{font-size:14px;color:#7b5c36;line-height:1.8;margin:25px 0;background:#fff8ed;padding:16px 18px;border-radius:10px}.release-note strong{font-weight:600;color:#6d502f}.download-button{width:100%;font-size:16px}.download-meta{display:flex;justify-content:space-between;color:#8290a3;font-size:12px;margin-top:14px}.download-meta a{color:#5c7598;text-decoration:underline;text-underline-offset:3px}.privacy-note{font-size:13px;color:#8391a4;margin-top:23px;line-height:1.9}.guide-section{padding:90px 0}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:70px;margin:45px 0 50px;padding:0;list-style:none}.step-number{display:block;color:#b6c9e0;font-size:38px;font-weight:500;letter-spacing:-2px;line-height:1}.steps h3{margin:20px 0 14px;font-size:22px;letter-spacing:-.4px}.steps p{color:var(--muted);font-size:16px;line-height:1.9}.port-tool{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:18px 40px;padding:30px;border:1px solid var(--line);border-radius:16px}.port-tool h3{font-size:19px;letter-spacing:-.3px}.port-tool p{font-size:14px;color:var(--muted);margin-top:6px}.port-controls{display:flex;align-items:center;gap:10px;justify-content:end}.port-controls label{font-size:13px;color:#69778b}.port-controls input{width:83px;height:42px;border:1px solid #d2ddea;border-radius:8px;padding:0 9px;font-size:15px;appearance:textfield}.copy-button{border:0;border-radius:9px;min-height:42px;padding:0 13px;color:#096de1;background:#edf4ff;font-size:14px}.port-tool>code{font-size:15px;color:#476078;letter-spacing:.1px;grid-column:1/-1}.port-tool #copy-status{min-height:0;margin:0;grid-column:1/-1;color:#1267cb;font-size:13px}.port-tool #copy-status:empty{display:none}.faq-section{padding:36px 0 86px}.faq-list{margin-top:35px}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;font-size:18px;font-weight:550;padding:23px 40px 23px 0;line-height:1.5;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:"+";position:absolute;right:4px;top:20px;font-size:26px;font-weight:300;color:#7c8b9d}.faq-list details[open] summary::after{content:"−"}.faq-list p{font-size:16px;color:var(--muted);max-width:860px;padding:0 36px 26px 0;line-height:1.9}.faq-list p a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.footer{display:flex;align-items:center;gap:24px;padding:28px 0 40px;border-top:1px solid var(--line)}.footer .brand{font-size:21px}.footer p{font-size:14px;color:#8090a3}.footer>span{margin-left:auto;color:#95a1b0;font-size:12px}
@media(min-width:1600px){.hero{min-height:690px}.hero-art{padding-left:25px}}@media(max-width:900px){.shell{width:calc(100% - 48px)}.hero{gap:10px;min-height:575px;padding:40px 0 65px}.hero-art{padding-top:20px}.hero-actions{flex-direction:column;align-items:flex-start}.hero-actions .button{min-width:180px}.hero-description{font-size:19px}.mode-layout{gap:45px;grid-template-columns:1fr 1.3fr}.download-grid{gap:45px}.download-panel{padding:26px}.download-section h2{font-size:36px}.steps{gap:35px}.port-tool{grid-template-columns:1fr}.port-controls{justify-content:start}.footer{flex-wrap:wrap}}@media(max-width:620px){.shell{width:calc(100% - 40px)}.header{height:83px}.brand{font-size:21px;gap:9px}.brand img{width:30px;height:30px;border-radius:8px}.header nav{gap:18px;font-size:14px}.header nav>a:not(.nav-download){display:none}.hero{grid-template-columns:1fr;gap:15px;padding:36px 0 54px}.eyebrow{font-size:11px;letter-spacing:1.2px}.eyebrow span{font-size:11px}h1{font-size:58px;letter-spacing:-3px;line-height:1.22;margin:20px 0}.hero-description{font-size:18px}.hero-actions{flex-direction:row;gap:10px;margin-top:27px}.hero-actions .button{min-width:0;padding:0 16px;min-height:48px;font-size:14px}.hero-note{font-size:12px;margin-top:14px}.hero-art{padding-top:25px;width:100%;max-width:420px;margin:auto}.route-label{margin-top:18px;gap:14px;font-size:11px}.route-line{width:35px}.connection-section{padding:50px 0 56px}.section-heading h2{font-size:30px;letter-spacing:-1px}.mode-layout{grid-template-columns:1fr;gap:26px;margin-top:30px}.tabs{flex-direction:row;gap:10px}.tabs button{width:50%;font-size:18px;padding:13px 14px;border-left:0;border-bottom:2px solid transparent;border-radius:10px 10px 0 0}.tabs button[aria-selected=true]{border-left:0;border-bottom-color:var(--blue)}.tabs button span{font-size:12px}.mode-panel{min-height:270px;padding:4px 0}.mode-panel h3{font-size:22px}.mode-panel>p:not(.mode-kicker):not(.small-note){font-size:15px}.config-example{gap:37px}.config-example code{font-size:19px}.small-note{font-size:12px}.download-section{padding:50px 0}.download-grid{grid-template-columns:1fr;gap:32px}.download-section h2{font-size:32px;margin-bottom:16px;letter-spacing:-1px}.section-description{font-size:17px}.download-version{margin-top:18px}.download-panel{padding:25px 23px;border-radius:19px}.download-title h3{font-size:22px}.download-title img{width:46px;height:46px}.download-title p{font-size:12px}.download-meta{font-size:12px}.release-note{font-size:13px;margin:22px 0}.guide-section{padding:55px 0}.steps{grid-template-columns:1fr;gap:28px;margin:30px 0 35px}.steps li{position:relative;padding-left:57px}.step-number{position:absolute;left:0;top:0;font-size:31px}.steps h3{margin:0 0 10px;font-size:20px}.steps p{font-size:15px}.port-tool{padding:22px;gap:18px}.port-controls{flex-wrap:wrap;gap:9px}.port-controls label{font-size:12px}.copy-button{font-size:13px;padding:0 10px}.port-tool>code{font-size:13px;overflow-wrap:anywhere}.faq-section{padding:0 0 55px}.faq-list{margin-top:24px}.faq-list summary{font-size:16px;padding:20px 32px 20px 0}.faq-list summary::after{top:17px}.faq-list p{font-size:14px;padding-bottom:22px;padding-right:10px}.footer{gap:10px 16px;padding:25px 0}.footer>span{margin-left:0;width:100%;font-size:11px}.auto-summary{gap:18px;font-size:14px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}.button{transition:none}}
.mobile-download-note{display:none}@media(max-width:620px){.mobile-download-note{display:block;font-size:13px;color:#637184;margin:0 0 18px;line-height:1.8}.mobile-download-note button{display:block;border:0;background:transparent;padding:6px 0;color:#087bff;font-size:14px;min-height:36px}.mobile-download-note span{display:block;color:#1267cb;font-size:12px}}
@media(max-width:620px){.mode-panel>p:not(.mode-kicker):not(.small-note),.steps p,.faq-list p{font-size:16px}.release-note,.mobile-download-note,.port-controls label,.copy-button{font-size:14px}}