:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#152540;background:#fff;font-synthesis:none;font-size:16px;line-height:1.75;--blue:#2459e0;--ink:#13243e;--muted:#5c6b80;--line:#dbe2ee}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0}a{color:var(--blue);text-underline-offset:4px}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a:focus-visible,button:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid #ed9b2d;outline-offset:5px}.wrap,header{width:min(1160px,calc(100% - 64px));margin:auto}header{display:flex;align-items:center;justify-content:space-between;padding:25px 0;border-bottom:1px solid var(--line);gap:24px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:22px;line-height:1.25;font-weight:750}.brand small{display:block;font-size:12px;font-weight:400;letter-spacing:.13em;margin-top:5px}.mark{display:block;width:46px;height:46px;object-fit:contain;flex:none}nav{display:flex;gap:27px;flex-wrap:wrap}nav a{text-decoration:none;color:var(--muted);font-size:14px}nav a:hover{color:var(--blue)}.hero{display:grid;grid-template-columns:1.35fr 1fr;gap:64px;padding-top:88px;padding-bottom:96px;align-items:center}.eyebrow{font-size:14px;letter-spacing:.12em;font-weight:650;color:var(--blue);margin:0 0 18px}h1{font-size:clamp(32px,4vw,52px);line-height:1.4;letter-spacing:-.04em;margin:0 0 22px;font-weight:750}h1 span{color:var(--blue)}.lead{font-size:18px;color:var(--muted);max-width:550px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 23px;border-radius:7px;border:1px solid transparent;font-weight:600;text-decoration:none;font-size:16px;line-height:1.6}.primary{background:var(--blue);color:#fff}.primary:hover{background:#1748c5}.light{border-color:var(--line);background:#fff;color:var(--ink)}.light:hover{background:#f0f4fa}.caption{font-size:12px;color:var(--muted);margin-top:22px}.workflow-card{border:1px solid #253e64;background:#13243e;color:#fff;border-radius:12px;box-shadow:0 18px 44px #193b691c;overflow:hidden}.card-top{padding:19px 25px;border-bottom:1px solid #ffffff26;font-size:14px}.card-top span{float:right;font-size:11px;letter-spacing:.14em;color:#a7bee6}.flow-row{display:flex;align-items:center;gap:18px;padding:23px 26px;border-bottom:1px solid #ffffff16}.step{color:#99b9ff;font-size:15px;border:1px solid #647fa8;border-radius:6px;padding:5px 9px}.flow-row strong{font-size:17px}.flow-row p{color:#bdcbe1;font-size:14px;margin:3px 0 0}.card-bottom{padding:18px 25px;color:#adc5ef;font-size:14px}.card-bottom span{float:right;font-size:12px;color:#a7b5cd}.section{padding-top:78px;padding-bottom:78px}.tinted{background:#f5f7fb}h2{font-size:32px;line-height:1.5;margin:0 0 28px;letter-spacing:-.02em}h3{font-size:21px;margin:14px 0 10px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.number{font-size:12px;color:var(--blue);font-weight:700;letter-spacing:.08em}.feature-grid p,.steps p{font-size:15px;color:var(--muted);margin-top:8px}.note{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:30px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px}.text-link{font-size:14px;white-space:nowrap}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;padding-left:24px}.steps li{padding-left:7px}.steps li::marker{color:var(--blue);font-weight:700}.pricing-section{background:#eff4ff}.section-intro{color:var(--muted);margin-top:-15px}.pricing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:25px;max-width:930px;margin:36px auto 0}.price-card{padding:32px 36px;background:#fff;border:1px solid var(--line);border-radius:12px;position:relative}.price-card h3{font-size:48px;line-height:1.2;margin:23px 0 14px;letter-spacing:-.03em}.price-card h3 small{font-size:17px;color:var(--muted);font-weight:400;letter-spacing:0}.price-card p{margin:0;color:var(--muted);font-size:15px}.price-card>p:first-of-type{color:var(--ink);font-size:19px;font-weight:650}.price-card ul{list-style:none;padding:0;margin:26px 0;color:var(--muted);font-size:15px}.price-card li{padding:7px 0}.price-card li::before{content:"✓";color:var(--blue);margin-right:12px}.price-card button{width:100%}.recommended{border:2px solid var(--blue)}.badge{position:absolute;right:25px;top:-14px;background:var(--blue);padding:3px 13px;color:white;border-radius:5px;font-size:13px}.status{text-align:center;font-size:14px;min-height:25px;color:var(--blue);margin-top:25px}.fineprint{max-width:850px;margin:16px auto 0;font-size:13px;color:var(--muted)}.faq{display:grid;grid-template-columns:1fr 1.6fr;gap:60px}details{border-bottom:1px solid var(--line);padding:19px 0}summary{cursor:pointer;font-weight:600}details p{font-size:15px;color:var(--muted)}.contact{display:flex;justify-content:space-between;align-items:center;gap:30px;border-top:1px solid var(--line);padding-top:40px;padding-bottom:40px}.contact h2{font-size:22px;margin:0}.contact p{font-size:14px;color:var(--muted);margin:6px 0}footer{padding-top:25px;padding-bottom:28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:13px;color:var(--muted)}footer p{margin:0}.footer-note{flex-basis:100%;font-size:12px}.license-result{margin:30px auto;max-width:850px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:30px}.license-result label{display:block}.license-result textarea{width:100%;resize:vertical;font-family:monospace;margin:8px 0 16px;border:1px solid var(--line);padding:12px;font-size:16px;word-break:break-all}.license-result p{font-size:14px}.document{max-width:820px;padding-top:55px;padding-bottom:70px}.document h1{font-size:36px}.document h2{font-size:23px;margin-top:35px;margin-bottom:12px}.document p,.document li{color:#43536b}.document .updated{font-size:14px;color:var(--muted)}.skip{position:absolute;top:-70px;left:20px;background:#fff;padding:10px;z-index:10}.skip:focus{top:5px}[hidden]{display:none!important}
@media(max-width:850px){.hero{gap:32px;padding-top:55px;padding-bottom:55px}.hero{grid-template-columns:1fr}.workflow-card{max-width:600px}.feature-grid{grid-template-columns:repeat(2,1fr)}.faq{grid-template-columns:1fr;gap:0}header{align-items:flex-start}nav{gap:14px}.brand{font-size:18px}.steps{gap:22px}.contact{flex-wrap:wrap}h2{font-size:28px}}
@media(max-width:560px){.wrap,header{width:calc(100% - 36px)}header{flex-direction:column;gap:20px;padding:20px 0}nav{gap:18px}h1{font-size:33px}.hero{padding-top:42px}.section{padding-top:48px;padding-bottom:48px}.feature-grid,.pricing-grid,.steps{grid-template-columns:1fr}.feature-grid{gap:20px}.steps{gap:12px}.price-card{padding:28px}.section-heading{align-items:flex-start;flex-direction:column;gap:0}.section-heading h2{margin-bottom:12px}.section-heading .text-link{margin-bottom:20px}.card-bottom span{display:block;float:none}.contact .button{padding:11px;font-size:14px}.license-result{padding:18px}footer nav{gap:16px}h2{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.header-controls{display:flex;flex-direction:column;gap:13px;align-items:flex-end}.header-controls nav{gap:20px}.languages{border-top:1px solid var(--line);padding-top:10px}.languages a{font-size:12px}.languages [aria-current=true]{color:var(--blue);font-weight:700;text-decoration:underline;text-underline-offset:5px}.header-controls [aria-current=page]{color:var(--blue);font-weight:700}.brand{flex-shrink:0}.brand small{letter-spacing:.04em}.download-strip{display:flex;justify-content:space-between;gap:32px;border-top:1px solid var(--line);padding-top:35px;padding-bottom:42px}.download-strip h2{font-size:26px;margin-bottom:10px}.download-strip p{max-width:740px;color:var(--muted);margin-bottom:0}.download-actions{display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:16px;flex-shrink:0}.guide-promo{display:flex;align-items:center;gap:35px;justify-content:space-between;background:#f4f7ff;border:1px solid #dbe5fb;border-left:4px solid var(--blue);border-radius:10px;padding:35px;margin-bottom:65px}.guide-promo div{max-width:750px}.guide-promo h2{font-size:26px;margin:0 0 12px}.guide-promo p{color:var(--muted);margin-bottom:0}.guide-promo .button{flex-shrink:0}.guide{padding-top:55px;padding-bottom:80px}.guide-intro{max-width:900px;margin-bottom:45px}.guide-intro h1{font-size:clamp(30px,4vw,44px)}.guide-intro .lead{max-width:780px}.updated{color:var(--muted);font-size:14px}.guide-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;align-items:start}.guide-toc{position:sticky;top:18px;max-height:calc(100vh - 40px);overflow:auto;background:#f5f7fb;border:1px solid var(--line);border-radius:9px;padding:22px}.guide-toc strong{font-size:16px}.guide-toc nav{display:flex;flex-direction:column;gap:0;margin-top:12px}.guide-toc a{font-size:13px;padding:9px 0;display:flex;gap:10px;line-height:1.6}.guide-toc a span{color:var(--blue);font-variant-numeric:tabular-nums}.guide-section{border-top:1px solid var(--line);padding:32px 0 44px;scroll-margin-top:25px}.guide-section h2{font-size:26px;margin-bottom:18px}.guide-section h3{font-size:19px}.guide-section p,.guide-section li{color:#43536b}.guide-section li{margin:9px 0}.guide-section .eyebrow{font-size:12px;margin-bottom:10px}.guide-section ol,.guide-section ul{padding-left:24px}.guide-callout{background:#eff4ff;border-left:3px solid var(--blue);padding:18px 22px;margin:24px 0;border-radius:0 7px 7px 0}.guide-callout p:last-child{margin-bottom:0}.guide-callout h2{margin-top:0}.guide code{background:#edf1f7;padding:2px 5px;border-radius:3px;overflow-wrap:anywhere;font-size:.92em}.guide table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.7;margin:22px 0;table-layout:fixed}.guide th,.guide td{padding:12px 14px;text-align:left;vertical-align:top;border:1px solid var(--line);overflow-wrap:anywhere}.guide th{background:#eff3fa;color:var(--ink);font-weight:650}.guide tr:nth-child(even) td{background:#fafbfd}.back-to-toc{font-size:12px}.guide-promo .button,.download-strip .button{white-space:normal}html[lang=en] .hero h1{font-size:clamp(32px,3.5vw,47px)}
@media(max-width:1050px){header{flex-wrap:wrap}.header-controls{align-items:flex-start;flex:1 1 600px}.guide-layout{gap:28px;grid-template-columns:220px minmax(0,1fr)}.guide-promo{flex-wrap:wrap}}
@media(max-width:760px){.guide-layout{grid-template-columns:1fr}.guide-toc{position:static;max-height:none}.guide-toc nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px}.download-strip{flex-wrap:wrap}.guide{padding-top:35px}.guide-section h2{font-size:24px}.guide th,.guide td{padding:10px}.guide-promo{padding:24px}.header-controls{flex:auto}.brand small{font-size:11px}}
@media(max-width:420px){.guide-toc nav{grid-template-columns:1fr}.header-controls nav{gap:14px}.guide table{font-size:12px}.guide th,.guide td{padding:8px 6px}.guide-promo h2{font-size:23px}}
@media print{header,footer,.skip,.guide-toc,#print-guide,.back-to-toc{display:none!important}.guide,.wrap{width:100%;max-width:none;padding:0}.guide-layout{display:block}.guide-section{padding:15px 0;break-inside:auto}.guide-intro{margin-bottom:20px}.guide h1{font-size:26px}.guide h2{font-size:20px;break-after:avoid}.guide p,.guide li{font-size:11px}.guide table{font-size:10px}.guide tr{break-inside:avoid}.guide-callout{background:none;border:1px solid #aaa}.guide a{color:inherit}body{color:#111}}

/* Keep navigation visible; anchor links and the guide contents clear its height. */
@media screen {
  :root{--header-height:150px}
  html{scroll-padding-top:calc(var(--header-height) + 18px)}
  body>header{
    position:sticky;top:0;z-index:50;width:100%;margin:0;
    padding-inline:max(32px,calc((100% - 1160px)/2));
    background:#fff;box-shadow:0 3px 12px #13243e08;
  }
  .skip{position:fixed;z-index:51}
  .guide-toc{top:calc(var(--header-height) + 18px);max-height:calc(100dvh - var(--header-height) - 36px)}
}
@media screen and (max-width:760px){.guide-toc{max-height:none}}
@media screen and (max-width:560px){
  :root{--header-height:220px}
  body>header{padding:12px 18px;gap:12px}
  .header-controls{gap:8px}
  .languages{padding-top:6px}
}

.menu-toggle{display:none}
.sandbox-entry{grid-column:1/-1;border-left:4px solid #bf7900;background:#fff8e8;scroll-margin-top:calc(var(--header-height) + 24px)}
.sandbox-entry .actions{flex-wrap:wrap}
@media screen and (max-width:760px){
  body>header{flex-direction:row;align-items:center;padding:12px 18px;gap:12px}
  body>header.navigation-ready{flex-wrap:nowrap}
  body>header .brand{flex:1;min-width:0;gap:10px;font-size:18px}
  body>header .brand>span:last-child{min-width:0}
  body>header .brand small{font-size:10px;letter-spacing:0;line-height:1.4}
  body>header .mark{flex-shrink:0;padding:0}
  .navigation-ready .menu-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex-shrink:0;min-height:44px;padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font-size:14px;font-weight:600}
  .menu-icon{width:18px;height:14px;border-top:2px solid currentColor;border-bottom:2px solid currentColor;position:relative}
  .menu-icon::after{content:"";position:absolute;top:4px;left:0;width:18px;border-top:2px solid currentColor}
  .menu-close-label{display:none}
  .menu-expanded .menu-open-label{display:none}
  .menu-expanded .menu-close-label{display:inline}
  .menu-expanded .menu-icon{border:0}
  .menu-expanded .menu-icon::before,.menu-expanded .menu-icon::after{content:"";position:absolute;top:6px;left:0;width:18px;border-top:2px solid currentColor;transform:rotate(45deg)}
  .menu-expanded .menu-icon::after{transform:rotate(-45deg)}
  .navigation-ready .header-controls{display:none;position:absolute;top:100%;left:0;right:0;padding:12px 18px 18px;max-height:calc(100dvh - var(--header-height) - 12px);overflow-y:auto;overscroll-behavior:contain;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 10px 18px #13243e14}
  .navigation-ready.menu-expanded .header-controls{display:flex}
  .header-controls>nav:first-child{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 12px;width:100%}
  .header-controls>nav:first-child a{display:flex;align-items:center;min-height:44px;padding:8px;border-radius:5px;color:var(--ink)}
  .header-controls>nav:first-child a:hover{background:#eff4ff;color:var(--blue)}
  .header-controls .languages{width:100%;gap:8px;flex-wrap:wrap;padding-top:8px;margin-top:6px}
  .languages a{display:flex;align-items:center;min-height:44px;padding:8px}
}

/* License delivery guidance stays next to the secure email-entry form. */
.email-delivery-notice{margin:24px 0;padding:18px 22px;background:#fff7df;border:1px solid #e6bd58;border-left:5px solid #b47805;border-radius:8px;color:#593e08;line-height:1.75}
.email-delivery-notice strong{display:block;font-size:18px;font-weight:750;color:#563800}
.email-delivery-notice p{margin:8px 0 0;color:inherit;font-size:15px}
.checkout-panel{margin:auto;padding:0;width:min(960px,calc(100vw - 24px));max-width:none;max-height:calc(100dvh - 32px);overflow-y:auto;overscroll-behavior:contain;background:#fff;color:var(--ink);border:0;border-radius:10px;box-shadow:0 16px 60px #13243e40}
.checkout-panel::backdrop{background:rgba(15,27,46,.62)}
body.checkout-modal-open{overflow:hidden}
.checkout-panel[hidden]{display:none}
.checkout-panel .email-delivery-notice{margin:0;border-radius:10px 10px 0 0}
.checkout-toolbar{display:flex;justify-content:flex-end;padding:12px 16px 0}
#checkout-feedback{padding:0 18px;color:#9c2b1f}
#checkout-feedback:empty{display:none}
.paddle-checkout-frame{width:100%;min-width:312px}
@media(max-width:760px){.checkout-panel{width:calc(100vw - 8px);max-height:calc(100dvh - 8px);margin:auto}.email-delivery-notice{padding:14px 16px}.email-delivery-notice strong{font-size:17px}}

/* Accessible, zoomable vector examples in the user guide. */
.request-page{max-width:840px}
.license-page{max-width:1040px;padding-block:52px 72px}
.license-page h1{font-size:clamp(30px,5vw,46px);line-height:1.2;margin:12px 0 16px}
.license-definition{padding:18px 22px;background:#edf3fc;border-left:4px solid #2860b8;border-radius:6px;line-height:1.8}
.license-purpose{margin:18px 0;padding:0;border:1px solid var(--line);border-radius:12px;background:white;overflow:hidden}
.license-purpose summary{cursor:pointer;display:flex;gap:18px;align-items:center;padding:22px;font-size:20px;list-style:none}
.license-purpose summary::-webkit-details-marker{display:none}
.license-purpose summary>span{font-size:15px;color:#2860b8}
.license-purpose summary::after{content:'+';margin-left:auto;font-size:26px;color:#2860b8}
.license-purpose[open] summary::after{content:'−'}
.license-purpose summary:focus-visible{outline:3px solid #2860b8;outline-offset:-4px}
.license-purpose-body{padding:0 22px 22px}
.license-routes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.license-route{padding:22px;background:#f5f7fb;border-radius:8px;min-width:0}
.license-route h3{margin:0;font-size:18px;line-height:1.6}
.license-route ol{padding-left:22px;line-height:1.85}
.license-route li{margin:12px 0;padding-left:4px}
.license-route .button{white-space:normal;text-align:center}
.license-rules{margin-top:40px;line-height:1.85}
.faq .text-link{white-space:normal}
@media(max-width:760px){.license-page{padding-block:30px 48px}.license-routes{grid-template-columns:1fr;gap:14px}.license-purpose summary{padding:18px;font-size:18px;gap:12px}.license-purpose-body{padding:0 14px 14px}.license-route{padding:18px}.license-definition{padding:14px 18px}}
.request-form{display:grid;gap:12px;margin:30px 0;padding:28px;border:1px solid #dce4ed;border-radius:12px;background:#fff}
.request-form label{font-weight:650;margin-top:8px}
.request-form input,.request-form textarea{display:block;box-sizing:border-box;width:100%;min-width:0;padding:12px;border:1px solid #9aaabd;border-radius:7px;font:inherit;color:inherit;background:#fff}
.request-form textarea{resize:vertical}
.request-form small,.request-note{color:#43536b;line-height:1.7}
.request-form button{justify-self:start}
#request-status{overflow-wrap:anywhere;margin:0}
.request-form input:focus-visible,.request-form textarea:focus-visible{outline:3px solid #2860b8;outline-offset:2px}
@media(max-width:760px){.request-form{padding:18px}}
.guide-layout>article{min-width:0}
.guide-illustrations{margin-top:32px}
.guide-figure{margin:24px 0 32px;border:1px solid #dce4ed;border-radius:10px;background:#fff;overflow:hidden;break-inside:avoid}
.guide-figure h4{display:flex;gap:12px;align-items:baseline;margin:0;padding:18px 20px;font-size:18px;line-height:1.6;border-bottom:1px solid #e2e8f0}
.guide-figure h4 span{color:#2860b8;font-size:14px;font-variant-numeric:tabular-nums;flex-shrink:0}
.guide-figure-scroll{overflow-x:auto;overscroll-behavior-x:contain;background:#f8fafc;scrollbar-width:thin}
.guide-figure-scroll:focus-visible{outline:3px solid #2860b8;outline-offset:-3px}
.guide-figure svg{display:block;width:100%;min-width:640px;height:auto}
.guide-figure figcaption{padding:16px 20px;font-size:14px;line-height:1.85;color:#43536b;border-top:1px solid #e2e8f0}
.figure-intro{font-size:14px}
@media(max-width:760px){.guide-figure h4{padding:14px;font-size:17px}.guide-figure figcaption{padding:14px}.guide-figure{margin:20px 0}}
@media print{.guide-figure-scroll{overflow:visible}.guide-figure svg{min-width:0;width:100%}.guide-figure h4{font-size:13px;padding:9px 12px}.guide-figure figcaption{font-size:10px;padding:9px 12px}.guide-figure{margin:14px 0}}

/* Shared anonymous page-view counter, centered below the footer note. */
footer .site-visits{flex-basis:100%;display:flex;justify-content:center;align-items:center;gap:8px;margin:8px 0 0;font-size:13px;color:var(--muted)}
footer .visit-icon{width:16px;height:16px;flex:none}
footer .site-visits strong{font-size:16px;font-weight:600;letter-spacing:.03em;color:var(--blue);font-variant-numeric:tabular-nums}
footer .site-visits .visit-unavailable{font-size:13px;font-weight:400;letter-spacing:0;color:var(--muted)}