@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{--ink:#13222e;--muted:#697784;--line:#e4e9e9;--paper:#fff;--bg:#f6f8f8;--green:#c7fa74;--green-dark:#376921;--night:#111f2c;--font:'DM Sans',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;--mono:'SFMono-Regular',Consolas,monospace}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{cursor:not-allowed;opacity:.5}button{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #71ac45;outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}svg{vertical-align:middle;width:20px;height:20px;flex-shrink:0}button svg,a svg{width:18px;height:18px}button{border:0;background:none}input,select{min-width:0}main{min-height:70vh}main:focus{outline:none}.skip-link{position:fixed;top:-100px;left:20px;background:var(--green);z-index:100;padding:12px}.skip-link:focus{top:10px}.header{height:82px;background:var(--paper);border-bottom:1px solid var(--line)}.nav-wrap{height:100%;max-width:1240px;margin:auto;padding:0 36px;display:flex;align-items:center;gap:60px}.brand{display:inline-flex;gap:11px;align-items:center;font-family:'Space Grotesk',var(--font);font-size:23px;font-weight:700;white-space:nowrap}.brand-cn{font-size:19px;margin-left:7px}.top-nav{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:600}.top-nav a{padding:28px 0;position:relative;color:var(--muted)}.top-nav a.active{color:var(--ink)}.top-nav a.active:after{content:'';height:3px;background:var(--ink);position:absolute;bottom:0;left:0;right:0}.nav-actions{margin-left:auto;display:flex;align-items:center;gap:23px}.version{font-family:var(--mono);font-size:11px;letter-spacing:1.5px;color:#83918f}.btn{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:13px 22px;border-radius:7px;font-size:14px;font-weight:600;min-height:46px;transition:background .15s,transform .15s;border:1px solid transparent;white-space:nowrap}.btn:hover{transform:translateY(-1px)}.btn-dark{background:var(--ink);color:white}.btn-dark:hover{background:#263e4d}.btn-green{background:var(--green);color:#182821}.btn-green:hover{background:#b7ed61}.btn-outline{background:white;border-color:#dbe2e3}.btn-outline:hover{background:#f3f6f4}.btn-small{padding:8px 16px;min-height:38px}.btn-ghost{padding-left:0;padding-right:0}.btn-wide{width:100%}.mobile-menu{display:none}.preview-strip{display:flex;align-items:center;justify-content:center;gap:13px;min-height:38px;padding:8px 24px;background:#eef3e9;color:#506442;font-size:12px}.preview-label{font-size:10px;font-weight:700;letter-spacing:1px;border:1px solid #c2d3b4;padding:0px 5px;border-radius:3px;white-space:nowrap}.preview-strip a{font-weight:600;white-space:nowrap}.container{max-width:1168px;margin:auto}.home{padding:0 36px}.hero{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:75px 0 65px}.eyebrow{display:flex;align-items:center;gap:9px;font-family:'Space Grotesk',var(--font);font-size:12px;font-weight:600;letter-spacing:1.8px;color:var(--green-dark);margin-bottom:21px}.eyebrow:before{content:'';width:20px;height:1px;background:currentColor}.hero h1{font-size:clamp(38px,4.4vw,58px);font-weight:750;line-height:1.3;letter-spacing:-2.5px}.hero h1 .highlight{position:relative;display:inline-block;z-index:0}.hero h1 .highlight:after{content:'';position:absolute;height:15px;background:var(--green);bottom:8px;left:-3px;right:-7px;z-index:-1;transform:rotate(-2deg)}.hero-copy>p{color:var(--muted);max-width:410px;margin:24px 0 28px;font-size:16px;line-height:1.95}.hero-actions{display:flex;align-items:center;gap:23px}.hero-note{font-size:12px;color:#84918e;margin-top:19px;display:flex;gap:17px}.hero-note span{display:flex;align-items:center;gap:5px}.hero-note svg{width:13px;height:13px}.terminal{background:var(--night);border:1px solid #263847;border-radius:14px;overflow:hidden;color:#dce8ed;box-shadow:0 20px 45px -25px #162e424d;transform:rotate(1deg)}.terminal-bar{padding:16px 19px;border-bottom:1px solid #2a3945;display:flex;align-items:center;gap:7px;font-size:11px;font-family:var(--mono);color:#8296a6}.terminal-dot{width:7px;height:7px;background:#5b6b77;border-radius:50%}.terminal-dot:first-child{background:#d79488}.terminal-dot:nth-child(2){background:#d1b475}.terminal-dot:nth-child(3){background:#8cad80}.terminal-bar>span:last-child{margin-left:auto;letter-spacing:1px}.terminal-body{padding:25px 28px 26px}.code-comment{color:#789190;font-size:12px;font-family:var(--mono)}.code{font:13px/1.95 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere;color:#c8d4e0;margin:14px 0 26px}.code .green{color:#c7fa74}.code .blue{color:#8fbce5}.terminal-response{border-top:1px dashed #344450;padding-top:18px;display:flex;align-items:center;gap:13px}.terminal-response .response-icon{width:34px;height:34px;border-radius:8px;background:#c7fa7420;color:var(--green);display:grid;place-items:center}.terminal-response p{font-size:13px;color:#e0e9eb}.terminal-response small{display:block;font-size:11px;color:#81939f;margin-top:2px}.terminal-response .badge{margin-left:auto;background:#243629;color:#c7fa74}.spec-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:25px 0}.spec{display:flex;flex-direction:column;padding-left:36px;border-left:1px solid var(--line)}.spec:first-child{padding-left:0;border:0}.spec strong{font-size:24px;line-height:1.3;font-family:'Space Grotesk',var(--font);font-weight:500}.spec span{font-size:12px;color:var(--muted);margin-top:6px}.section{padding:58px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}.section-head h2{font-size:26px;letter-spacing:-.7px}.section-head p{font-size:14px;color:var(--muted);margin-top:7px}.text-link{font-size:13px;font-weight:600;display:inline-flex;gap:8px;align-items:center;white-space:nowrap}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.step{background:white;border:1px solid var(--line);border-radius:10px;padding:25px 27px}.step-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.step-icon{display:grid;place-items:center;width:40px;height:40px;background:#f0f5ed;border-radius:10px}.step-icon svg{width:21px;height:21px}.step-num{font:12px var(--mono);color:#a5afb1}.step h3{font-size:17px;margin-bottom:8px}.step p{font-size:14px;color:var(--muted);line-height:1.8}.bottom-section{padding-top:0;display:grid;grid-template-columns:1.1fr 1fr;gap:26px}.model-teaser{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:27px}.model-teaser h3{font-size:18px;margin-bottom:8px}.model-teaser p{font-size:14px;color:var(--muted)}.model-logos{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.model-word{padding:8px 14px;background:#f5f7f8;border:1px solid #edf0f0;border-radius:6px;font-size:15px;font-family:'Space Grotesk',var(--font);font-weight:600}.cta-card{background:#e9f1e2;border:1px solid #dce8d1;border-radius:10px;padding:27px;display:flex;flex-direction:column;align-items:start;justify-content:space-between}.cta-card h3{font-size:22px;letter-spacing:-.7px;margin-bottom:8px}.cta-card p{font-size:14px;color:#64735e;margin-bottom:24px}.footer{max-width:1240px;margin:auto;padding:28px 36px 32px;display:flex;align-items:center;gap:20px;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}.footer-brand{font-size:15px;color:var(--ink);gap:8px}.footer>div{margin-left:auto;display:flex;gap:22px;align-items:center}.footer button{font-size:12px;padding:0}.workspace{max-width:1240px;margin:auto;display:grid;grid-template-columns:202px minmax(0,1fr);min-height:750px;padding:34px 36px 55px;gap:34px}.sidebar{border-right:1px solid var(--line);padding-right:23px;display:flex;flex-direction:column;gap:5px}.sidebar-label{font-size:10px;letter-spacing:1.8px;color:#929d9f;padding:8px 12px 16px;font-family:var(--mono)}.sidebar a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:6px;color:#73808a;font-size:14px}.sidebar a svg{width:17px;height:17px}.sidebar a.active{background:#e7efdF;color:#264322;font-weight:600}.sidebar a:hover{background:#eef2ef}.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:20px;font-size:12px;color:var(--muted)}.sidebar-bottom p{margin:0 10px 10px}.workspace-content{min-width:0}.page-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:5px 0 27px}.page-head h1{font-size:29px;letter-spacing:-1px}.page-head p{font-size:14px;color:var(--muted);margin-top:8px}.badge{display:inline-flex;align-items:center;font-size:11px;font-weight:600;line-height:1.5;border-radius:4px;padding:3px 7px;background:#eef2f3;color:#71818b;white-space:nowrap}.badge-green{background:#edf5e6;color:#588238}.balance-banner{background:var(--night);color:white;border-radius:12px;padding:27px 30px;display:flex;justify-content:space-between;gap:30px;position:relative;overflow:hidden}.balance-banner h2{font-size:13px;font-weight:400;color:#a7b6c0}.balance-number{font-family:'Space Grotesk',var(--font);font-size:48px;font-weight:500;letter-spacing:-2px;margin:4px 0}.balance-number small{font-size:14px;letter-spacing:0;color:#9badb8;margin-left:12px}.balance-banner p{font-size:12px;color:#94a6b3}.balance-side{display:flex;flex-direction:column;justify-content:center;align-items:end;gap:10px;min-width:140px}.balance-side span{color:#b1c0c8;font-size:12px}.balance-side strong{color:var(--green);font-family:'Space Grotesk',var(--font);font-size:22px}.panel{background:white;border:1px solid var(--line);border-radius:10px;padding:24px;margin-top:22px}.panel h2{font-size:17px}.panel-title{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:21px}.two-col{display:grid;grid-template-columns:1.3fr 1fr;gap:22px}.two-col .panel{margin-top:22px}.reward-top{display:flex;align-items:center;gap:14px;margin-bottom:18px}.reward-icon{width:47px;height:47px;display:grid;place-items:center;background:#eef7e5;border-radius:12px;color:#457226}.reward-icon svg{width:22px;height:22px}.reward-top p{font-size:13px;color:var(--muted);margin-top:3px}.reward-amount{font-family:'Space Grotesk',var(--font);font-size:30px;letter-spacing:-1px}.reward-amount span{font-size:13px;color:var(--muted);margin-left:6px;letter-spacing:0}.muted{color:var(--muted)}.small{font-size:13px}.reward-description{margin:8px 0 22px;font-size:13px;color:var(--muted);line-height:1.9}.reward-foot{margin-top:13px;text-align:center;font-size:11px;color:#8b989d}.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}.mini-stat{background:white;border:1px solid var(--line);border-radius:9px;padding:18px 22px}.mini-stat label{display:block;font-size:12px;color:var(--muted)}.mini-stat strong{display:block;font-size:24px;font-family:'Space Grotesk',var(--font);font-weight:500;margin-top:6px}.info-list{list-style:none;margin:0;padding:0}.info-list li{display:flex;align-items:start;gap:10px;color:var(--muted);font-size:13px;padding:12px 0;border-bottom:1px solid #f0f3f3}.info-list li:last-child{border:0}.info-list svg{width:16px;height:16px;margin-top:2px;flex-shrink:0;color:#718f58}.info-list strong{color:var(--ink);font-weight:500}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px;text-align:left}th{font-weight:500;color:#869198;font-size:12px;padding:10px 12px;background:#f8fafa;white-space:nowrap}td{padding:15px 12px;border-bottom:1px solid #edf0f0;white-space:nowrap}tr:last-child td{border-bottom:0}.positive{color:#528324}.mono{font-family:var(--mono);font-size:12px}.empty{padding:45px 20px;text-align:center}.empty>svg{width:32px;height:32px;color:#99aaa8;margin-bottom:12px}.empty h3{font-size:16px;font-weight:500}.empty p{color:var(--muted);font-size:13px;margin:7px 0 17px}.filter-bar{display:flex;gap:12px;align-items:center;margin-bottom:22px}.search-wrap{position:relative;flex:1}.search-wrap svg{position:absolute;width:17px;height:17px;left:13px;top:14px;color:#869598}.search-wrap input{width:100%;border:1px solid #dfe5e5;border-radius:7px;background:white;padding:11px 13px 11px 39px;font-size:14px}.filter-bar select{padding:11px 12px;border:1px solid #dfe5e5;background:white;border-radius:7px;font-size:14px}.model-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.model-card{background:white;border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column}.model-card-top{display:flex;align-items:center;gap:12px}.model-symbol{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:#eef0ff;color:#5265b4;font-size:17px;font-family:'Space Grotesk',var(--font);font-weight:600;flex-shrink:0}.model-card:nth-child(3n+2) .model-symbol{background:#e9f4f0;color:#42866e}.model-card:nth-child(3n) .model-symbol{background:#f2edfa;color:#9271b8}.model-card h2{font-size:17px}.model-card-top .muted{font-size:11px}.model-card>p{font-size:13px;color:var(--muted);margin:18px 0;flex:1}.model-card-bottom{border-top:1px solid var(--line);padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}.model-card-bottom button{font-size:12px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:7px}.model-id{font-size:11px;color:#87949c;overflow-wrap:anywhere;white-space:normal}.notice{padding:15px 18px;background:#edf2e9;border:1px solid #dfe8d8;border-radius:7px;font-size:13px;color:#627457;margin-top:22px;line-height:1.9}.code-panel{background:var(--night);color:#cad7e1;border-radius:9px;overflow:hidden;margin-top:18px}.code-panel-head{display:flex;align-items:center;justify-content:space-between;padding:13px 19px;border-bottom:1px solid #2b3c49;font-size:12px;color:#97aeba}.code-panel-head button{color:#ccdae2;display:flex;align-items:center;gap:6px;font-size:12px}.code-panel pre{margin:0;padding:23px;font-size:12px;line-height:1.9;overflow:auto;font-family:var(--mono);tab-size:2}.doc-steps{counter-reset:doc}.doc-step{padding:25px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:31px 1fr;gap:16px}.doc-step:before{counter-increment:doc;content:counter(doc);display:grid;place-items:center;width:28px;height:28px;background:#e6eddf;border-radius:50%;font-size:12px;color:#53743d}.doc-step h2{font-size:18px;margin-bottom:10px}.doc-step p{font-size:14px;color:var(--muted);line-height:1.9}.doc-step a{text-decoration:underline;text-underline-offset:3px;color:#476930}.faq{margin-top:26px}.faq h2{font-size:20px;margin-bottom:10px}.faq details{border-bottom:1px solid var(--line);padding:15px 0}.faq summary{cursor:pointer;font-size:14px;font-weight:500}.faq details p{font-size:13px;color:var(--muted);padding:12px 0;line-height:1.9}.chart{display:flex;align-items:end;gap:14px;height:190px;border-bottom:1px solid var(--line);padding:14px 20px 0;margin:25px 0 10px}.chart-col{flex:1;display:flex;flex-direction:column;justify-content:end;align-items:center;height:100%;position:relative}.chart-bar{width:min(100%,42px);min-height:3px;background:#b5dd8a;border-radius:4px 4px 0 0}.chart-labels{display:flex;gap:14px;padding:0 20px;font-size:11px;color:#8a969c}.chart-labels span{flex:1;text-align:center}.chart-zero{position:absolute;inset:70px 0 auto;text-align:center;font-size:13px;color:#93a0a2;pointer-events:none}.chart-container{position:relative}.danger{color:#ac514b}.icon-btn{width:36px;height:36px;display:inline-grid;place-items:center;border-radius:6px}.icon-btn:hover{background:#f0f3f3}.key-name{font-size:14px;font-weight:500}.key-actions{display:flex;gap:3px;justify-content:end}.mobile-menu{display:none}dialog{width:min(450px,calc(100% - 32px));max-height:85vh;border:1px solid #dce3e0;border-radius:14px;padding:30px;background:white;color:var(--ink);box-shadow:0 25px 100px #0003}dialog::backdrop{background:#0a172a77;backdrop-filter:blur(4px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.dialog-head h2{font-size:22px}.dialog-description{color:var(--muted);font-size:14px;line-height:1.85;margin-bottom:22px}.field{display:block;font-size:13px;font-weight:500;margin-bottom:18px}.field input{display:block;margin-top:7px;border:1px solid #d9e0e0;border-radius:6px;width:100%;padding:11px 13px;font-size:14px}.dialog-foot{font-size:12px;color:#89959c;text-align:center;margin-top:16px}.dialog-actions{display:flex;gap:10px;justify-content:end;margin-top:23px}.token-reveal{background:#f1f5ec;border:1px dashed #bdcda9;border-radius:8px;padding:16px;font:12px/1.8 var(--mono);overflow-wrap:anywhere;margin:18px 0}.reward-preview{border-radius:10px;background:var(--night);color:white;padding:35px 20px;text-align:center;margin-bottom:20px}.reward-preview .reward-icon{margin:0 auto 18px;background:#c7fa7420;color:var(--green)}.reward-preview h3{font-size:19px}.reward-preview p{color:#a5b5c0;font-size:12px;margin-top:10px}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--night);color:white;border:1px solid #3e525e;border-radius:9px;padding:13px 22px;font-size:13px;z-index:200;transition:.2s;max-width:calc(100vw - 36px);box-shadow:0 8px 25px #0002}.toast.show{opacity:1;transform:translate(-50%,0)}.inline-tag{font-size:11px;background:#eef2e9;color:#638048;padding:3px 7px;border-radius:4px}.spacer{height:10px}.key-warning{font-size:12px;color:#826b40;background:#fbf5e9;padding:11px 14px;border-radius:6px}.doc-tabs{display:flex;gap:6px}.doc-tabs button{padding:5px 10px;border-radius:4px;font-size:12px;color:#a5b8c5}.doc-tabs button.active{background:#2a3d48;color:#dcf3c3}.no-results{grid-column:1/-1;padding:50px;text-align:center;color:var(--muted)}
@media(min-width:1440px){.hero{padding-top:88px;padding-bottom:78px}.hero h1{font-size:60px}}
@media(max-width:1050px){.nav-wrap{gap:30px}.version{display:none}.hero{gap:32px}.hero h1{font-size:43px}.terminal-body{padding:23px 20px}.code{font-size:11px}.workspace{gap:23px;grid-template-columns:170px minmax(0,1fr)}.sidebar{padding-right:15px}.two-col{grid-template-columns:1fr}.hero-copy>p{font-size:15px}.footer{flex-wrap:wrap}.footer>div{gap:15px}}
@media(max-width:760px){.header{height:68px}.nav-wrap{padding:0 20px;gap:18px}.brand{font-size:20px}.brand-cn{font-size:16px}.brand img{width:31px;height:31px}.nav-actions{gap:8px}.nav-actions .btn{font-size:12px;padding:8px 11px;gap:8px}.top-nav{display:none}.mobile-menu{display:inline-grid}.top-nav.open{position:absolute;top:68px;left:0;right:0;background:white;padding:0 25px;display:flex;justify-content:space-between;z-index:10;box-shadow:0 10px 20px #0001}.top-nav a{padding:15px 0}.preview-strip{font-size:11px;gap:9px;padding:9px 20px;align-items:start}.preview-strip a{display:none}.preview-label{margin-top:2px}.home{padding:0 22px}.hero{grid-template-columns:1fr;padding:42px 0 35px;gap:35px}.hero h1{font-size:43px;letter-spacing:-2px}.hero-copy>p{font-size:15px;max-width:none;margin:20px 0 23px}.eyebrow{font-size:11px;margin-bottom:17px}.hero-actions{gap:20px}.hero-note{margin-top:14px}.terminal{transform:none}.terminal-body{padding:22px}.code{font-size:12px}.spec-strip{grid-template-columns:1fr 1fr;gap:23px;padding:25px 0}.spec{padding-left:23px}.spec:nth-child(3){border:0;padding-left:0}.spec strong{font-size:22px}.section{padding:35px 0}.section-head h2{font-size:23px}.section-head p{font-size:12px}.steps{grid-template-columns:1fr;gap:12px}.step{padding:22px}.step-top{margin-bottom:14px}.step p{font-size:13px}.bottom-section{grid-template-columns:1fr;padding-top:0;gap:15px}.footer{padding:23px 22px;gap:12px;font-size:11px}.footer>div{width:100%;margin:0;flex-wrap:wrap;gap:17px}.footer-brand{font-size:14px}.footer-brand img{width:25px;height:25px}.workspace{display:flex;flex-direction:column;padding:15px 20px 35px;gap:17px;min-height:650px}.sidebar{flex-direction:row;border:0;padding:0 0 12px;border-bottom:1px solid var(--line);gap:5px;overflow:auto;flex-shrink:0}.sidebar-label,.sidebar-bottom{display:none}.sidebar a{padding:9px 11px;white-space:nowrap;font-size:12px;gap:6px}.sidebar a svg{width:14px;height:14px}.page-head{margin:5px 0 23px;align-items:start}.page-head h1{font-size:25px}.page-head p{font-size:12px}.page-head>.btn{font-size:12px;padding:8px 12px;min-height:38px}.balance-banner{padding:24px;gap:16px}.balance-number{font-size:35px}.balance-number small{font-size:11px;margin-left:7px}.balance-side{min-width:70px}.balance-side strong{font-size:18px}.balance-side span{font-size:10px}.balance-banner p{font-size:11px}.panel{padding:20px}.two-col{gap:0}.mini-stats{gap:8px}.mini-stat{padding:14px 12px}.mini-stat label{font-size:11px}.mini-stat strong{font-size:21px}.model-grid{grid-template-columns:1fr}.filter-bar{gap:8px}.filter-bar select{max-width:113px;padding:11px 7px;font-size:12px}.model-card{padding:20px}.section-head .text-link{font-size:12px}.code-panel pre{font-size:11px;padding:17px}.doc-step{gap:12px;grid-template-columns:26px minmax(0,1fr)}.doc-step h2{font-size:16px}.doc-step p{font-size:13px}.code-panel-head{padding:11px;gap:5px}.code-panel-head>span{font-size:10px}.chart{gap:8px;padding-left:5px;padding-right:5px}.chart-labels{gap:8px;padding:0 5px}dialog{padding:23px}.dialog-head h2{font-size:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important;animation:none!important}}

#site-language{border:1px solid #dce3e6;border-radius:8px;background:#fff;color:#101c27;padding:8px;max-width:124px;font:inherit;font-size:13px}.hero h1{overflow-wrap:break-word}.btn{white-space:normal}.nav-actions{gap:10px}@media(max-width:640px){#site-language{max-width:94px;padding:6px}.nav-actions{gap:6px}#account-button{font-size:12px;padding:8px}.brand-cn{display:none}.hero h1{font-size:clamp(36px,10vw,58px)}}

.email-help{margin:0 0 22px;padding:15px 17px;border:1px solid #dfe8d5;border-radius:8px;background:#f5f8f0;color:var(--ink);font-size:13px;line-height:1.8}.email-help strong{display:block;margin-bottom:5px}.email-help p{margin:0;color:var(--muted)}.email-help .email-sender{margin-top:8px;font-size:12px;overflow-wrap:anywhere}

.protocol-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 12px}
.client-guides{margin:40px 0}.client-guides>.panel{margin:18px 0}.client-guides p{line-height:1.8}.client-guides a{color:inherit;text-underline-offset:3px}.client-guides summary{cursor:pointer;padding:14px 0;font-weight:600}.guide-code{background:#101c27;color:#e6f1f3;padding:20px;border-radius:12px;overflow:auto;font-size:12px;line-height:1.65;max-height:380px;white-space:pre}.guide-downloads{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}