/* KA reference layout; shared documentation styles stay in styles.css. */
:root{--yellow:#ffc700;--ink:#222;--green:#8a6500;--bright:#b68700;--paper:#fff;--line:#e9e9e9;--muted:#777}body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}.portal-width{width:min(1140px,calc(100% - 48px));margin:auto}.site-header{height:80px;background:#fff;border-bottom:1px solid #eee;padding:0 max(24px,calc((100vw - 1200px)/2));gap:30px}.brand{font-size:23px;font-weight:500;gap:14px}.brand-mark{background:var(--yellow);color:#222;width:49px;height:39px;border-radius:4px;font:bold 28px "PingFang SC",sans-serif;letter-spacing:-1px;padding:0}.brand-sub{color:#666}.site-header nav{gap:27px;white-space:nowrap}.site-header nav a:not(.nav-cta){height:80px}.site-header nav a.current:after{background:var(--yellow);height:3px;bottom:0}.nav-cta{background:var(--yellow);color:#222;border-radius:4px;padding:11px 22px}.nav-cta:hover{background:#f2bd00}.ka-banner{height:635px;position:relative;color:#fff;background:#0e1d4d}.banner-slide{height:635px;background:none center/auto 635px no-repeat;overflow:hidden}.banner-slide.chain-slide{background-image:none;background-color:#181324}.banner-slide.system-slide{background-image:none;background-color:#1b2238}.banner-inner{width:min(1140px,calc(100% - 48px));margin:auto;padding-top:142px}.banner-inner h1,.banner-inner h2{font-size:40px;line-height:1.4;font-weight:500;margin:0 0 12px;letter-spacing:1px}.banner-inner>p{font-size:22px;font-weight:300;margin:0 0 28px;line-height:1.85}.ka-button{display:inline-flex;align-items:center;justify-content:center;background:var(--yellow);border-radius:22px;padding:8px 25px;color:#222;font-size:16px;min-height:36px;transition:background .2s}.ka-button:hover{background:#ffda49}.banner-controls{position:absolute;bottom:104px;left:0;right:0;display:flex;justify-content:center;gap:20px}.banner-controls button{background:transparent;border:0;padding:12px 0;width:70px}.banner-controls span{display:block;height:2px;background:#ffffff45}.banner-controls .active span{background:#fff}.announcement{position:absolute;bottom:0;width:100%;background:#ffffffec;color:#555;border-bottom:1px solid #eee}.announcement>div{display:flex;align-items:center;gap:34px;min-height:60px;font-size:13px}.announce-icon{font-size:28px;color:#c39600}.announce-more{margin-left:auto;color:#888}.portal-section{padding:58px 0 65px}.portal-heading{position:relative;text-align:center;margin-bottom:36px;isolation:isolate}.portal-heading h2{font-size:28px;line-height:40px;font-weight:500;margin:0;display:inline-block;position:relative}.portal-heading h2:after{position:absolute;content:"";background:var(--yellow);height:9px;width:90%;bottom:3px;left:5%;z-index:-1}.portal-heading p{font-size:16px;color:#777;margin:12px 0 0;letter-spacing:1px}.business-section{background:#fdfdfd}.business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.business-card{background:#fff;border:1px solid #eee;box-shadow:0 4px 20px #00000008;transition:transform .2s,box-shadow .2s;overflow:hidden}.business-card:hover,.business-card:focus-within{transform:translateY(-7px);box-shadow:0 7px 25px #00000017;border-color:#f2d46b}.business-top{height:148px;background:none center/cover;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px}.business-card:nth-child(2) .business-top{background-image:none}.business-card:nth-child(3) .business-top{background-image:none}.business-top img{object-fit:contain;width:52px;height:52px}.business-top h3{margin:0;font-weight:500;font-size:22px}.business-items{padding:0 27px}.business-items>a{display:block;padding:22px 0;border-bottom:1px solid #eee}.business-items h4{font-size:17px;margin:0 0 10px;font-weight:500}.business-items h4>span{float:right;color:#bbb}.business-items p{font-size:13px;line-height:1.7;color:#888;margin:0}.business-items small{font-weight:400;font-size:10px;color:#876815;background:#fff3c4;padding:3px 6px;margin-left:5px}.business-more{display:block;text-align:center;font-size:13px;color:#977400;padding:21px}.join-tabs{display:flex;width:min(501px,calc(100% - 48px));height:63px;margin:40px auto 60px;border-radius:32px;box-shadow:0 2px 15px #ddd;position:relative}.join-tabs:after{content:"";position:absolute;left:50%;top:21px;height:20px;width:1px;background:#ddd}.join-tabs button{width:50%;border:0;background:transparent;font-size:22px;color:#888;border-radius:32px}.join-tabs button[aria-selected=true]{color:#9a7400;font-weight:600}.process-grid{list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);margin:0;gap:40px;text-align:center}.process-grid li{position:relative}.process-grid li:not(:last-child):after{content:"〉";position:absolute;right:-31px;top:42px;font-size:38px;font-weight:200;color:#ddd}.process-grid img{object-fit:contain}.process-grid li>div{display:flex;justify-content:center;align-items:baseline;gap:8px;margin-top:15px}.process-grid li>div>span{font-size:40px;color:#ddd;font-style:italic;font-weight:200}.process-grid h3{font-weight:500;font-size:20px;margin:0}.process-grid p{color:#888;font-size:12px;margin:5px 0 0}.join-panel{min-height:225px}.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px 55px;padding:20px 25px}.advantage-grid article{display:flex;gap:20px;align-items:center}.advantage-grid b{font-size:37px;color:#cea000;font-weight:400}.advantage-grid h3{font-size:20px;font-weight:500;margin:0 0 7px}.advantage-grid p{font-size:13px;color:#888;margin:0}.join-action{text-align:center;margin:65px 0 0;background:radial-gradient(ellipse at center,#fff7d7,transparent 68%);padding:15px}.ka-button.large{font-size:23px;border-radius:40px;min-height:68px;min-width:300px;box-shadow:0 2px 10px #ffe37d}.openapi-section{background:#f6f7f9}.api-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:23px;gap:20px}.api-toolbar strong{font-size:20px;font-weight:500}.status-chip{background:#e8f3eb;color:#407653;font-size:11px;padding:5px 9px;margin-left:15px;border-radius:3px}.api-search{font-size:12px;color:#666;display:flex;align-items:center;gap:12px}.api-search input{padding:12px 14px;border:1px solid #ddd;border-radius:4px;font:13px inherit;width:230px;background:#fff}.api-search input:focus-visible{outline:2px solid #b88b00;outline-offset:2px}.api-catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.api-catalog>a{display:flex;align-items:center;gap:18px;background:white;padding:24px;border:1px solid #e8e8e8;transition:border-color .2s}.api-catalog>a:hover{border-color:#d4a400}.api-catalog>a>span:last-child{margin-left:auto;color:#aaa}.api-catalog h3{font-size:16px;font-weight:500;margin:0 0 8px}.api-catalog code{font:12px var(--mono);color:#899099;overflow-wrap:anywhere}.api-catalog .method{padding:7px;width:50px;text-align:center;flex-shrink:0}.search-status{font-size:12px;color:#888;margin:14px 0}.api-resources{display:flex;justify-content:center;gap:45px;margin-top:30px;font-size:14px}.api-resources a:hover{color:#9b7700}.support-section{background:#171a25 none center/cover;color:#fff;text-align:center}.support-section .portal-heading p{color:#bbb}.support-section .portal-heading h2:after{opacity:.75}.platform-links{display:grid;grid-template-columns:repeat(5,1fr);gap:25px;margin-top:45px}.platform-links a{font-size:26px;font-weight:600;letter-spacing:1px}.platform-links a:hover{color:var(--yellow)}.platform-links small{display:block;font-size:11px;font-weight:400;letter-spacing:0;color:#aaa;margin-top:16px}.support-note{color:#999;font-size:12px;margin:40px 24px 15px}.support-link{color:var(--yellow);font-size:13px}.faq-section{padding-bottom:80px}.faq-section details{border-bottom:1px solid #eee;padding:21px 8px}.faq-section summary{font-size:16px;cursor:pointer}.faq-section details p{font-size:14px;color:#777;max-width:960px}.portal-footer{background:#212121;color:#aaa;padding:48px 0 0}.portal-footer>.portal-width{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;padding-bottom:40px}.portal-footer .brand{color:#eee;display:inline-flex}.portal-footer p{font-size:13px}.portal-footer h3{font-weight:500;font-size:15px;color:#ddd;margin:0 0 16px}.portal-footer>div>div>a:not(.brand){font-size:13px;display:block;margin:12px 0}.footer-bottom{margin:0;text-align:center;border-top:1px solid #333;padding:18px 24px;color:#888;font-size:11px!important}.back-top{position:fixed;bottom:28px;right:22px;background:white;border:1px solid #ddd;box-shadow:0 2px 8px #0001;width:42px;height:42px;display:grid;place-items:center;font-size:23px;z-index:15}.portal-body [hidden]{display:none!important}.primary{background:var(--yellow);color:#222}.primary:hover{background:#ffdb52}.docs-body .site-header nav{gap:24px}.docs-sidebar nav a.active,.docs-sidebar nav a:hover{background:#fff7d8}.notice{background:#fff8e1;border-color:#e1b731}.docs-main h1{font-size:34px}.help-main{max-width:1140px;margin:auto;padding:50px 24px 80px}.help-main>h1{font-size:36px;font-weight:500;margin:0 0 15px}.help-main .lead{color:#777}.help-main section{padding:28px 0;border-bottom:1px solid #eee;scroll-margin-top:90px}.help-main h2{font-weight:500;font-size:25px}.help-main h3{font-size:18px;font-weight:500}.help-main p,.help-main li{font-size:14px;line-height:1.9;color:#666}.help-main a:not(.ka-button){color:#876800;text-decoration:underline;text-underline-offset:3px}.help-main .help-nav{display:flex;flex-wrap:wrap;gap:20px;margin:25px 0}.help-main th{background:#fff8df}.help-main td{white-space:normal}.help-main code{overflow-wrap:anywhere}.architecture{padding:24px;background:#fafafa;white-space:pre-wrap;font:14px/2 var(--mono);border-left:3px solid var(--yellow)}
@media(max-width:1100px){.site-header nav{gap:16px}.site-header{gap:16px}.brand{font-size:20px}.banner-inner h1,.banner-inner h2{font-size:34px}.banner-inner>p{font-size:18px}.banner-inner{padding-top:150px}.status-chip{display:inline-block;margin:8px 0 0}.api-toolbar>div{display:flex;flex-direction:column;align-items:flex-start}}
@media(max-width:800px){.site-header{height:68px;padding:0 22px}.menu-toggle{display:block;background:transparent;border:1px solid #ddd;border-radius:4px;padding:8px 11px;font-size:13px}.site-header nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 22px;box-shadow:0 10px 15px #0001}.site-header nav.open{display:flex}.site-header nav a:not(.nav-cta){height:45px}.site-header nav a.current:after{display:none}.nav-cta{margin-top:8px;justify-content:center}.ka-banner,.banner-slide{height:510px}.banner-slide{background-size:auto 510px}.banner-inner{padding-top:95px}.banner-inner h1,.banner-inner h2{font-size:30px;max-width:520px}.banner-inner>p{font-size:16px;max-width:450px}.announcement>div{gap:15px;font-size:12px}.announcement a:nth-of-type(2){display:none}.banner-controls{bottom:90px}.portal-heading p{font-size:13px;letter-spacing:0;padding:0 20px}.business-grid{grid-template-columns:1fr;max-width:540px;gap:25px}.business-top{height:135px;background-size:cover}.business-items{display:grid;grid-template-columns:1fr 1fr;gap:20px}.business-items h4{font-size:15px}.business-items h4>span{display:none}.portal-section{padding-top:40px;padding-bottom:40px}.portal-heading h2{font-size:24px}.portal-heading{margin-bottom:25px}.process-grid{grid-template-columns:repeat(2,1fr);gap:35px}.process-grid li:not(:last-child):after{display:none}.advantage-grid{grid-template-columns:repeat(2,1fr);gap:25px;padding:0}.advantage-grid h3{font-size:16px}.advantage-grid b{font-size:28px}.join-tabs{margin:25px auto 40px;height:52px}.join-tabs button{font-size:18px}.join-tabs:after{top:16px}.join-action{margin-top:40px}.ka-button.large{font-size:20px;min-height:58px}.api-toolbar{align-items:flex-start}.api-search{flex-direction:column;align-items:flex-start;gap:6px}.api-search input{width:210px}.api-catalog{grid-template-columns:1fr}.platform-links{grid-template-columns:repeat(3,1fr);gap:30px 15px}.platform-links a{font-size:22px}.platform-links small{font-size:10px}.portal-footer>.portal-width{gap:25px;grid-template-columns:1.5fr 1fr 1fr}.portal-footer .brand{font-size:18px}.help-main>h1{font-size:29px}}
@media(max-width:480px){.portal-width,.banner-inner{width:calc(100% - 36px)}.banner-inner{padding-top:85px}.banner-inner h1,.banner-inner h2{font-size:27px;max-width:320px}.banner-inner>p{font-size:14px;max-width:310px}.announcement>div{gap:10px}.announcement a:first-of-type{font-size:11px}.announce-more{font-size:10px}.announce-icon{display:none}.business-items{display:block}.business-items>a{padding:18px 0}.process-grid{gap:24px 10px}.process-grid p{font-size:10px}.process-grid h3{font-size:18px}.process-grid img{width:88px;height:88px}.advantage-grid{gap:22px 12px}.advantage-grid article{gap:10px}.advantage-grid p{font-size:11px}.api-toolbar{flex-direction:column;gap:16px}.api-toolbar>div{flex-direction:row;align-items:center;gap:12px}.status-chip{margin:0}.api-search{flex-direction:row;align-items:center;width:100%}.api-search input{flex:1;min-width:0}.api-catalog>a{padding:20px 15px;gap:12px}.api-catalog code{font-size:11px}.api-resources{gap:18px;font-size:11px}.platform-links{grid-template-columns:repeat(2,1fr)}.platform-links a:last-child{grid-column:1/-1}.portal-footer>.portal-width{grid-template-columns:1fr 1fr}.portal-footer>.portal-width>div:first-child{grid-column:1/-1}.faq-section summary{font-size:14px}.back-top{right:12px;bottom:14px;width:34px;height:34px}.docs-body .reference-links{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.business-card,.ka-button{transition:none}}

@media(min-width:801px) and (max-width:1180px){.site-header nav{gap:17px;font-size:13px}.site-header .brand{font-size:19px;gap:8px}.site-header .brand-sub{font-size:12px;margin-left:9px;padding-left:9px}.site-header .nav-cta{padding:10px 15px}.site-header{gap:16px}}
.business-top{color:#fff;text-shadow:0 1px 5px #0008}.banner-inner h1,.banner-inner h2{text-wrap:balance}
@media(max-width:480px){.site-header{padding:0 16px;gap:10px}.site-header .brand{font-size:18px;gap:8px}.site-header .brand-mark{width:32px;height:32px;font-size:24px}.site-header .brand-sub{font-size:10px;margin-left:7px;padding-left:7px}.site-header .menu-toggle{padding:7px 9px;font-size:12px}.banner-inner h1,.banner-inner h2{max-width:310px;line-height:1.5}}
.api-catalog>a>div{min-width:0}.join-action .ka-button.large{min-width:0;width:300px;max-width:100%}
.announcement{background:#ffffff14;color:#ccc;border-bottom-color:#ffffff12}.announce-more{color:#ccc}.announce-icon{color:var(--yellow)}
.business-card{border-radius:5px}.business-items{text-align:center}.business-items h4>span{display:none}.business-items h4:before,.business-items h4:after{content:"";display:inline-block;width:3px;height:14px;background:var(--yellow);margin:0 10px;vertical-align:-1px}.business-items>a{border-bottom-color:transparent}

/* First-party CSS artwork: no external raster artwork is published. */
.banner-slide{position:relative;background:radial-gradient(ellipse at 80% 35%,#32453d 0,transparent 45%),linear-gradient(115deg,#141f21 5%,#202f30 58%,#354d46);overflow:hidden;isolation:isolate}.banner-slide:before{content:"";position:absolute;right:8%;top:82px;width:290px;height:290px;border:42px solid #efc84f24;box-shadow:0 0 0 65px #eff5c407,0 0 0 130px #eff5c405;border-radius:50%;transform:rotate(-15deg);z-index:-1}.banner-slide:after{content:"✦";position:absolute;right:16%;top:140px;font-size:180px;color:#f7d159;line-height:1;text-shadow:0 12px 70px #e6d87925;z-index:-1}.banner-slide.chain-slide{background:radial-gradient(ellipse at 80% 35%,#3b4835 0,transparent 45%),linear-gradient(115deg,#171f20,#293b35)}.banner-slide.api-slide{background:radial-gradient(ellipse at 80% 35%,#324450 0,transparent 45%),linear-gradient(115deg,#151c26,#253b45)}.business-top{background:linear-gradient(130deg,#1f3735,#467063);color:#fff}.business-card:nth-child(2) .business-top{background:linear-gradient(130deg,#283c50,#60798a)}.business-card:nth-child(3) .business-top{background:linear-gradient(130deg,#4b4634,#8a8061)}.business-symbol{display:grid;place-items:center;width:50px;height:50px;border-radius:13px;background:#ffffff16;border:1px solid #ffffff29;font-size:25px;color:#fff1b0}.process-symbol{display:inline-grid;place-items:center;width:100px;height:100px;border-radius:24px;background:linear-gradient(145deg,#fff6d1,#fffdf4);border:1px solid #f5e6b8;font-size:43px;line-height:1;color:#aa8420}.support-section{background:radial-gradient(ellipse at 50% 10%,#343f39,#1c2624 70%)}.support-section .platform-links a{font-size:23px}.help-main{max-width:1140px}.help-main .help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.help-main .help-grid a{display:block;padding:24px;border:1px solid #e5e8e9;border-radius:9px;text-decoration:none;background:#fff}.help-main .help-grid strong{display:block;font-size:18px;color:#27342e;margin-bottom:10px}.help-main .help-grid span{font-size:13px;line-height:1.8;color:#788079}.help-main details{border-top:1px solid #eceeed;padding:18px 0}.help-main summary{cursor:pointer;font-size:15px;color:#303c34}.help-main .help-callout{background:#fff9e6;border-left:3px solid #ebc14f;padding:18px 22px}.help-main .help-callout p{margin:0}.help-main code{font-size:12px}.support-note{font-size:12px;color:#b5c0b9}
@media(max-width:800px){.banner-slide:before{right:-140px;opacity:.65}.banner-slide:after{right:-30px;opacity:.23}.help-main .help-grid{grid-template-columns:1fr}.support-section .platform-links a{font-size:19px}}