:root{--blue:#087cf4;--ink:#0c1c33;--muted:#5b697e;--line:#dce3ed;--pale:#f5f8fd;--white:#fff;--radius:16px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);background:var(--white);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--blue);outline-offset:5px}button{color:inherit}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.4}h2{font-size:clamp(30px,3vw,43px);letter-spacing:-1.5px;font-weight:600}h3{font-weight:600}.container{width:min(1200px,calc(100% - 96px));margin-inline:auto}.section{padding-block:110px}.section-label{font-size:14px;color:var(--blue);font-weight:600;letter-spacing:1px;margin-bottom:20px}.skip-link{position:fixed;left:16px;top:-100px;background:white;padding:10px 20px;z-index:100}.skip-link:focus{top:12px}.header{height:88px;background:rgba(255,255,255,.96);border-bottom:1px solid #edf1f6;position:sticky;top:0;z-index:20}.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand img{border-radius:11px}.brand>span{font-size:24px;font-weight:650;line-height:1.1;letter-spacing:2px}.brand small{display:block;font-size:10px;letter-spacing:3px;font-weight:500;margin-top:5px}.header nav{display:flex;align-items:center;gap:40px;font-size:14px}.header nav a{padding:8px 0;transition:color .2s}.header nav a:hover{color:var(--blue)}.header nav a:last-child{border-left:1px solid var(--line);padding-left:32px}.header nav a:last-child span{margin-left:15px}.menu-toggle{display:none}.hero{background:var(--pale);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;min-height:630px;position:relative}.hero-copy{padding:56px 0 66px;z-index:1}.eyebrow{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:500;color:#426282;margin-bottom:29px;letter-spacing:1px}.short-line{width:25px;height:2px;background:var(--blue)}h1{font-size:clamp(48px,5.1vw,72px);font-weight:650;letter-spacing:-3px;line-height:1.28}h1 span{color:var(--blue)}.hero-description{color:var(--muted);margin-top:26px;line-height:1.95;font-size:16px}.button{display:inline-flex;gap:44px;align-items:center;background:var(--blue);color:white;padding:13px 23px;border-radius:6px;font-size:15px;margin-top:32px;box-shadow:0 6px 16px #087cf424;transition:background .2s,transform .2s}.button:hover{background:#0065d6;transform:translateY(-2px)}.button span{font-size:22px;line-height:1}.hero-art{width:122%;margin-left:-7%;position:relative}.hero-art img{width:100%;height:auto;mix-blend-mode:multiply;mask-image:radial-gradient(ellipse at center,#000 48%,transparent 73%)}.hero-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-block:24px;font-size:14px}.hero-bottom p:first-child{font-weight:600;letter-spacing:3px}.hero-bottom p:first-child span{margin:0 12px;color:#8a9caf}.hero-bottom p:last-child{color:var(--muted)}.about{display:grid;grid-template-columns:1fr 1fr;gap:90px}.about-copy p{color:var(--muted);margin-bottom:21px}.about-copy .lead{font-size:23px;line-height:1.6;color:var(--ink);font-weight:500;margin-bottom:24px}.about-values{display:flex;gap:32px;color:var(--blue);font-size:14px;margin-top:28px}.about-values span{border-left:2px solid var(--blue);padding-left:12px}.community{background:#0b2343;color:white;position:relative}.community-inner{padding-block:80px;display:grid;grid-template-columns:.9fr 1.1fr;gap:80px}.community .section-label{color:#7abbff}.community-intro>p:last-child{color:#b6c7dd;margin-top:24px;line-height:1.9}.community h2{font-size:clamp(29px,2.8vw,38px)}.region-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px 36px;align-content:center}.region{padding-top:17px;border-top:1px solid #3b506c}.region-en{font-size:12px;color:#95abc8;letter-spacing:.7px}.region h3{font-size:19px;margin:12px 0 8px}.region p{font-size:14px;color:#c1d0e4}.region p span{margin:0 4px;color:#8197b5}.topics-heading>p:last-child{color:var(--muted);margin-top:18px}.topic-explorer{display:grid;grid-template-columns:1fr 1.3fr;margin-top:44px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.topic-tabs{padding:22px;background:white;display:flex;flex-direction:column;justify-content:center}.topic-tabs button{display:flex;text-align:left;align-items:center;gap:18px;border:0;background:transparent;border-radius:8px;padding:22px 20px;font-size:17px;transition:background .2s,color .2s}.topic-number{font-size:13px;letter-spacing:1px;color:#7d8998}.tab-arrow{margin-left:auto;font-size:21px;opacity:0}.topic-tabs button:hover{background:#f5f8fc}.topic-tabs button[aria-selected=true]{background:#eaf3ff;color:#076bda;font-weight:600}.topic-tabs button[aria-selected=true] .topic-number{color:#076bda}.topic-tabs button[aria-selected=true] .tab-arrow{opacity:1}.topic-panels{background:#f0f5fc;padding:42px 50px;min-height:460px}.topic-panels h3{font-size:29px;line-height:1.55;margin-bottom:17px}.topic-panels p{color:var(--muted);font-size:15px;line-height:1.9;max-width:420px}.market-type{display:flex;gap:10px;margin-bottom:28px}.market-type span{width:66px;height:59px;display:grid;place-items:center;background:white;border:1px solid #d9e4f3;border-radius:9px;color:#0874e2;font-size:22px;font-weight:600;box-shadow:0 3px 6px #0c1c3304}.panel-word{font-size:38px;letter-spacing:6px;color:#0874e2;line-height:59px;margin-bottom:28px;font-weight:600}.topic-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.topic-tags span{font-size:13px;color:#4f6887;border:1px solid #ccdbee;border-radius:4px;padding:3px 13px}.topics-note{font-size:14px;color:var(--muted);text-align:center;margin-top:26px}.safety{background:#f7f9fc;border-top:1px solid #edf1f6}.safety-heading{text-align:center}.safety-heading>p:last-child{color:var(--muted);margin-top:20px}.safety-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;margin-top:50px;align-items:start}.boundary{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:34px 36px 0;overflow:hidden}.boundary h3,.safety-tips>h3{font-size:22px}.boundary>p{color:var(--muted);font-size:14px;margin-top:10px}.boundary ul{list-style:none;padding:0;margin:25px 0 28px}.boundary li{font-size:16px;display:flex;align-items:center;gap:12px;margin:13px 0}.boundary li:before{content:'—';font-size:15px;color:#8b99ac}.boundary-bottom{border-top:1px solid var(--line);padding:19px 0;font-size:14px;color:#526780}.tips-intro{font-size:14px;color:var(--muted);margin:8px 0 16px}.safety-tips details{border-bottom:1px solid var(--line);padding:15px 0}.safety-tips summary{display:flex;align-items:center;gap:14px;cursor:pointer;list-style:none;font-size:17px;font-weight:500}.safety-tips summary::-webkit-details-marker{display:none}.tip-index{font-size:12px;letter-spacing:1px;color:#69809c}.detail-symbol{margin-left:auto;font-size:21px;color:#58708e;font-weight:400}.detail-symbol:after{content:'+'}details[open] .detail-symbol:after{content:'−'}.safety-tips details p{font-size:14px;line-height:1.9;color:var(--muted);margin:11px 23px 3px 33px}.closing{text-align:center;padding-block:80px 88px}.closing>p{color:var(--muted);font-size:15px;margin-bottom:15px}.closing h2{font-size:clamp(29px,3vw,40px)}.closing>span{display:block;font-size:15px;color:var(--blue);margin-top:20px;letter-spacing:3px}footer{border-top:1px solid var(--line)}.footer-top{display:flex;align-items:center;gap:30px;padding-block:35px}.footer-top>p{color:var(--muted);font-size:13px}.footer-top>a:last-child{margin-left:auto;font-size:14px}.footer-top>a:last-child span{margin-left:12px}.footer-bottom{border-top:1px solid #e9edf3;display:flex;justify-content:space-between;padding-block:20px;font-size:12px;color:#68788e}[hidden]{display:none!important}
@media(min-width:1600px){.hero-grid{min-height:700px}}
@media(max-width:1000px){.container{width:calc(100% - 64px)}.header nav{gap:24px}.hero-grid{min-height:575px}.hero-art{width:125%;margin-left:-14%}.hero-copy{padding-block:45px}.hero-description{font-size:15px}h1{font-size:56px}.section{padding-block:80px}.about{gap:45px}.community-inner{gap:35px;grid-template-columns:1fr 1fr}.region-grid{gap:28px 20px}.topic-panels{padding:35px}.topic-tabs{padding:14px}.topic-tabs button{padding:22px 12px;font-size:15px;gap:12px}.safety-grid{gap:36px}.boundary{padding-inline:26px}.footer-top>p{max-width:220px}}
@media(max-width:700px){html{scroll-padding-top:85px}.container{width:calc(100% - 40px)}.header{height:72px}.brand img{width:37px;height:37px}.brand>span{font-size:22px}.menu-toggle{display:flex;flex-direction:column;gap:6px;width:42px;height:42px;justify-content:center;align-items:center;border:1px solid var(--line);border-radius:6px;background:white}.menu-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.header nav{display:none;position:absolute;left:0;right:0;top:72px;background:white;padding:18px 20px 25px;box-shadow:0 12px 16px #0c1c330b;border-bottom:1px solid var(--line);gap:6px;align-items:stretch}.header nav.is-open{display:flex;flex-direction:column}.header nav a,.header nav a:last-child{padding:10px 12px;border:0}.hero-grid{display:flex;flex-direction:column;min-height:auto;align-items:stretch}.hero-copy{padding:46px 0 0}.eyebrow{font-size:12px;margin-bottom:22px}h1{font-size:clamp(40px,11vw,60px);letter-spacing:-2px}.hero-description{font-size:15px;margin-top:21px}.desktop-break{display:none}.button{margin-top:25px;font-size:14px;padding:11px 20px}.hero-art{width:100%;max-width:480px;margin:16px auto -6px}.hero-bottom{padding-block:19px}.hero-bottom p:first-child{font-size:13px;letter-spacing:2px}.hero-bottom p:last-child{display:none}.section{padding-block:66px}.about{grid-template-columns:1fr;gap:29px}h2{font-size:31px;letter-spacing:-1px}.section-label{font-size:13px;margin-bottom:15px}.about-copy .lead{font-size:21px}.about-copy p{font-size:15px}.about-values{margin-top:23px;gap:24px}.community-inner{grid-template-columns:1fr;gap:36px;padding-block:57px}.community-intro>p:last-child{font-size:15px;margin-top:20px}.region-grid{gap:24px 16px}.region h3{font-size:18px}.region p{font-size:13px}.region-en{font-size:12px;letter-spacing:0}.topics-heading>p:last-child{font-size:15px}.topic-explorer{grid-template-columns:1fr;margin-top:30px}.topic-tabs{padding:10px;display:grid;grid-template-columns:1fr}.topic-tabs button{padding:12px 15px;font-size:15px}.topic-panels{padding:30px 26px;min-height:405px}.topic-panels h3{font-size:25px}.topic-panels p{font-size:14px}.market-type{margin-bottom:24px}.topics-note{font-size:13px;text-align:left;line-height:1.9}.safety-heading{text-align:left}.safety-heading>p:last-child{font-size:15px}.safety-grid{grid-template-columns:1fr;margin-top:32px;gap:36px}.boundary{padding:28px 26px 0}.boundary h3,.safety-tips>h3{font-size:21px}.safety-tips summary{font-size:16px}.closing{padding-block:58px}.closing h2{font-size:28px}.footer-top{flex-wrap:wrap;gap:18px;padding-block:28px}.footer-top>p{max-width:none;font-size:12px;flex-basis:100%;order:3}.footer-top>a:last-child{font-size:13px}.footer-bottom{font-size:12px;flex-wrap:wrap;gap:6px;padding-block:18px}.footer-bottom>span:last-child{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* Client download links: keep both platforms visible on desktop and mobile. */
.download-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;scroll-margin-top:120px}
.download-actions .button{margin-top:0;gap:26px}
.button-secondary{background:white;color:var(--blue);border:1px solid #c3d9f4;box-shadow:none}
.button-secondary:hover{background:#eaf3ff;color:#0065d6}
@media(max-width:700px){.download-actions{margin-top:25px;gap:12px}.download-actions .button{gap:20px}}