@font-face {
  font-family: 'Yunbai Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../font/yunbai-noto-sc-0.woff2) format('woff2');
}
@font-face {
  font-family: 'Yunbai Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../font/yunbai-noto-sc-1.woff2) format('woff2');
}
@font-face {
  font-family: 'Yunbai Sans';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../font/yunbai-noto-sc-2.woff2) format('woff2');
}

/* Yunbai — cloud editorial. Original artwork; no reference-site assets. */
:root{--ink:#15181f;--muted:#7f8590;--blue:#3069f4;--paper:#f7f8fa;--dark:#080b12;--line:#dedfe4;--ease:cubic-bezier(.2,.7,.2,1);--gutter:clamp(24px,6.25vw,120px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--dark);color:var(--ink);font-family:"Yunbai Sans","Inter","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;isolation:isolate}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}button:focus-visible,a:focus-visible,canvas:focus-visible,[tabindex]:focus-visible{outline:3px solid #5287ff;outline-offset:5px}button[hidden],[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:650}img,svg,canvas{max-width:100%}::selection{color:#fff;background:#3069f4}.section-shell{padding-left:var(--gutter);padding-right:var(--gutter)}.skip-link{position:fixed;top:8px;left:8px;z-index:100001;background:#fff;color:#111;padding:12px;transform:translateY(-150%)}.skip-link:focus{transform:none}
/* Flat, minimal navigation. Never transform an ancestor of fixed overlays. */
.idc-header{position:fixed;inset:0 0 auto;z-index:1000;display:flex;align-items:center;justify-content:space-between;gap:36px;height:96px;padding:0 var(--gutter);color:#fff;border-bottom:1px solid #ffffff16;background:transparent;transition:transform .5s var(--ease),background .35s,color .35s,border-color .35s}.idc-header.header-solid{height:80px;background:rgba(250,251,253,.97);color:var(--ink);border-color:#dfe2e9}.idc-header.nav-hidden{transform:translateY(-110%)}.idc-header:focus-within{transform:none}.brand{display:flex;align-items:center;gap:12px;font-size:27px;letter-spacing:.04em;font-weight:750;line-height:1.2;flex-shrink:0}.brand-symbol{width:40px;height:40px}.brand small{display:block;font-size:8px;letter-spacing:.19em;margin-top:6px;font-weight:550}.desktop-nav{display:flex;gap:36px;margin-left:auto;margin-right:5vw}.desktop-nav a{font-size:13px;line-height:40px;position:relative;white-space:nowrap}.desktop-nav a:after{content:"";position:absolute;bottom:4px;left:0;right:0;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .25s}.desktop-nav a:hover:after{transform:scaleX(1)}.header-actions{display:flex;align-items:center;gap:20px}.header-cta{display:flex;gap:27px;align-items:center;background:var(--blue);color:white;font-size:12px;padding:12px 17px;border-radius:3px;white-space:nowrap;transition:background .25s}.header-cta:hover{background:#1c52d6}.header-cta span{font-size:20px;line-height:18px}.menu-toggle{display:none;background:none;border:0;width:38px;height:42px;padding:9px 4px}.menu-toggle span{display:block;background:currentColor;height:1px;margin:7px 0}.drawer-scrim{position:fixed;inset:0;background:#080b1290;z-index:1001}.mobile-drawer{position:fixed;z-index:1002;right:0;top:0;bottom:0;width:min(420px,90vw);background:#fff;padding:22px 26px 32px;overflow-y:auto;box-shadow:-20px 0 80px #0002}.drawer-top{display:flex;align-items:center;justify-content:space-between;font-size:10px;letter-spacing:1px;margin-bottom:30px}.mobile-drawer>a{display:flex;justify-content:space-between;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);font-size:22px}.mobile-drawer>a span{font-size:11px;color:var(--muted)}.icon-button{background:none;border:0;font-size:30px;line-height:1;padding:6px;width:42px;height:42px}
/* Hero: the sphere is the product image, not a decorative card. */
.hero{position:relative;min-height:860px;height:100svh;max-height:1240px;padding:190px var(--gutter) 145px;display:flex;align-items:center;color:#fff;background:rgba(8,11,18,.965);overflow:hidden;overflow:clip}.hero-index{position:absolute;top:137px;left:var(--gutter);font-size:8px;letter-spacing:.18em;color:#586071}.hero-copy{position:relative;z-index:2;width:57%;max-width:760px;padding-bottom:35px;pointer-events:none;transform:translateY(calc(var(--hero-progress,0)*-55px));opacity:calc(1 - var(--hero-progress,0)*.45)}.hero-copy a{pointer-events:auto}.eyebrow{font-size:10px;letter-spacing:.19em;line-height:1.8;font-weight:500;margin-bottom:30px}.signal-dot{display:inline-block;flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--blue);vertical-align:middle;margin-right:8px}.hero .eyebrow{color:#b4bdce}.hero h1{font-size:clamp(66px,7.1vw,126px);font-weight:700;letter-spacing:-.065em;line-height:1.19;margin:0 0 30px}.title-line{display:block}.accent-text{color:#668ff9}.hero-description{color:#a5acb9;line-height:1.9;font-size:14px;margin-bottom:34px;letter-spacing:.02em}.hero-actions{display:flex;align-items:center;gap:30px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:50px;font-size:13px;min-height:52px;padding:15px 22px;border-radius:2px;transition:background .25s,color .25s}.button-primary{background:#fff;color:#101622}.button-primary:hover{background:#3069f4;color:#fff}.button span{font-size:24px;line-height:1}.text-link{display:inline-flex;gap:26px;align-items:center;font-size:12px}.text-link>span{font-size:21px;transition:transform .3s}.text-link:hover>span{transform:translate(3px,-3px)}.hero-bottom{position:absolute;z-index:3;bottom:36px;left:var(--gutter);right:var(--gutter);display:flex;align-items:center;justify-content:space-between;color:#89909e;font-size:9px;letter-spacing:.12em;border-top:1px solid #ffffff24;padding-top:27px}.scroll-cue{display:flex;align-items:center;gap:14px;color:#fff;font-size:11px;letter-spacing:.06em}.scroll-line{display:block;width:1px;height:31px;background:#475064;position:relative;overflow:hidden}.scroll-line:after{content:"";position:absolute;top:-12px;left:0;width:1px;height:14px;background:#fff;animation:scroll-line 2.4s infinite}.hero-page{font-family:monospace}@keyframes scroll-line{to{transform:translateY(45px)}}
.hero-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:9px;letter-spacing:.12em;margin-bottom:46px;line-height:1.8}.closing{position:relative;overflow:hidden;overflow:clip;background:#f6f7f9;color:#15181f;padding-top:92px;padding-bottom:70px}.closing-grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(to right,rgba(21,24,31,.06) 1px,transparent 1px),linear-gradient(to bottom,rgba(21,24,31,.06) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(130% 106% at 50% 0%,#000 0%,rgba(0,0,0,.6) 58%,rgba(0,0,0,.1) 100%);mask-image:radial-gradient(130% 106% at 50% 0%,#000 0%,rgba(0,0,0,.6) 58%,rgba(0,0,0,.1) 100%)}.closing>*:not(.closing-grid){position:relative}.closing .eyebrow{color:#8b93a1;margin-bottom:43px}.closing h2{font-size:clamp(42px,5.3vw,94px);line-height:1.2;letter-spacing:-.06em;margin-bottom:65px}.closing-bottom{display:flex;align-items:center;justify-content:space-between}.closing-bottom p{font-size:12px;color:#6b7480;line-height:1.8;margin:0}.closing-link{display:flex;align-items:center;gap:65px;font-size:20px;border-bottom:1px solid #15181f38;padding-bottom:17px}.closing-link span{font-size:48px;line-height:1;transition:transform .3s}.closing-link:hover span{transform:translate(5px,-5px)}.site-footer{padding-top:50px;padding-bottom:28px;background:var(--dark);color:#fff}.footer-top{display:flex;align-items:center;gap:70px;padding-bottom:45px}.footer-top .brand{display:block;font-size:28px}.footer-top p{font-size:12px;color:#7f8796;letter-spacing:.04em;margin:0}.back-top{display:grid;place-items:center;width:43px;height:43px;border:1px solid #343b48;border-radius:50%;margin-left:auto;font-size:20px}.footer-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #ffffff1a;padding-top:23px;color:#636d7d;font-size:9px;gap:30px}.footer-bottom nav{display:flex;gap:26px;color:#9ca5b3;font-size:10px}
/* Loading is deliberately the original eight-second image-gated behavior. */
body.page-loading{overflow:hidden}body.page-loading>*:not(#pageLoader){opacity:0;visibility:hidden}#siteBackground{position:fixed;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-1;pointer-events:none}#pageLoader{position:fixed;inset:0;z-index:100000;display:flex;align-items:center;justify-content:center;background:#080b12;transition:opacity .45s ease,visibility .45s ease}#pageLoader.is-ready{opacity:0;visibility:hidden;pointer-events:none}.page-loader-inner{width:min(300px,calc(100vw - 40px));text-align:center;transform:translateY(-16px)}.cloud-scene{position:relative;height:125px;width:180px;margin:0 auto 25px}.loading-cloud{position:absolute;left:25px;top:58px;width:130px;height:44px;border-radius:50px;background:#ecf2ff;filter:drop-shadow(0 10px 16px #4a77d533);animation:cloud-float 2.8s ease-in-out infinite}.loading-cloud:before,.loading-cloud:after{content:"";position:absolute;background:#ecf2ff;border-radius:50%}.loading-cloud:before{width:65px;height:65px;top:-36px;left:22px}.loading-cloud:after{width:48px;height:48px;top:-23px;right:13px}.cloud-shadow{position:absolute;bottom:0;left:44px;width:92px;height:10px;background:#376ee835;filter:blur(5px);border-radius:50%;animation:cloud-float 2.8s ease-in-out infinite}.page-loader-brand{color:#e2e9f8;font-size:19px;letter-spacing:5px;margin-left:5px;font-weight:500}.page-loader-caption{margin:16px 0 25px;color:#6f7c92;font-size:11px;letter-spacing:1px;line-height:1.8}#cloudRetry{border:1px solid #35425a;border-radius:20px;padding:9px 23px;background:none;color:#b3c7ed;font-size:11px}.cloud-progress{width:180px;height:2px;margin:0 auto;background:#1b2436;overflow:hidden}#cloudProgressFill{display:block;width:0;height:100%;background:#6799ff;transition:width .15s linear}#cloudProgressText{font:10px monospace;color:#536782;margin:12px 0 18px}@keyframes cloud-float{50%{transform:translateY(-9px)}}
/* Existing announcement data module; restyled native controls. */
.api-notice-container{position:fixed;bottom:24px;left:24px;z-index:998;display:flex;align-items:flex-end}.api-notice-icon{display:flex;align-items:center;justify-content:center;gap:8px;background:#fff;color:#243348;height:42px;border:1px solid #dde2e9;border-radius:4px;padding:0 14px;box-shadow:0 4px 25px #10284b14;font-size:11px}.api-notice-icon svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5}.api-notice-container.open .api-notice-icon{display:none}.api-notice-panel{display:none;width:min(360px,calc(100vw - 40px));background:#fff;border:1px solid #dce2eb;border-radius:6px;padding:18px;box-shadow:0 15px 70px #06152d2a;color:#283346}.api-notice-container.open .api-notice-panel{display:block;animation:panel-reveal .3s var(--ease)}.api-notice-header{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e4e8ef;padding-bottom:10px}.api-notice-title{font-size:14px;font-weight:600;display:flex;align-items:center}.api-notice-close{font-size:24px;width:30px;height:30px;padding:0;color:#8791a1}.api-notice-body{max-height:50svh;overflow-y:auto;padding-top:5px}.notice-accordion-item{border-bottom:1px solid #edf0f5}.notice-accordion-header{padding:15px 0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:10px}.notice-accordion-title-text{font-size:12px;font-weight:500;flex:1;line-height:1.7;overflow-wrap:anywhere}.notice-accordion-icon{font-size:0;width:16px;display:inline-grid;place-items:center;transition:transform .3s}.notice-accordion-icon:after{content:"+";font:20px Arial;color:#76849b}.notice-accordion-item.active .notice-accordion-icon{transform:rotate(45deg)}.notice-accordion-content-wrapper{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s}.notice-accordion-item.active .notice-accordion-content-wrapper{grid-template-rows:1fr}.notice-accordion-content{overflow:hidden}.notice-accordion-inner{font-size:12px;line-height:1.8;color:#778296;padding:4px 0 18px;overflow-wrap:anywhere}.notice-time{display:block;text-align:right;font-size:10px;margin-top:12px;color:#9aa3b1}.notice-empty,.notice-error{font-size:12px;line-height:1.8;padding:20px 0;color:#8992a1}@keyframes panel-reveal{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
/* Scroll entrance uses individual targets, not whole tall sections. */
.reveal-pending{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}.reveal-pending.is-visible{opacity:1;transform:none}.motion-ready .hero .title-line{animation:title-in 1.1s var(--ease) both}.motion-ready .hero .title-line:nth-child(2){animation-delay:.12s}body.page-loading .hero .title-line{animation-play-state:paused}@keyframes title-in{from{opacity:0;transform:translateY(45px);clip-path:inset(100% 0 0)}to{opacity:1;transform:none;clip-path:inset(-10% -5% -10% -5%)}}
@media(max-width:1100px){.desktop-nav{gap:20px;margin-right:0}.idc-header{gap:20px}.hero{min-height:760px}.hero h1{font-size:8vw}.hero-copy{width:60%}}
@media(max-width:760px){:root{--gutter:24px}.idc-header{height:78px;gap:15px}.idc-header.header-solid{height:68px}.brand{font-size:23px;gap:8px}.brand-symbol{width:34px;height:34px}.brand small{font-size:6px;letter-spacing:.13em;margin-top:5px}.desktop-nav{display:none}.header-actions{gap:13px}.header-cta{padding:9px 12px;font-size:10px;gap:15px}.header-cta span{font-size:17px}.menu-toggle{display:block;width:28px}.hero{height:auto;max-height:none;min-height:880px;padding-top:147px;padding-bottom:100px;display:block}.hero-index{display:none}.hero-copy{width:100%;padding:0;transform:none!important;opacity:1!important}.hero .eyebrow{font-size:8px;margin-bottom:24px}.hero h1{font-size:clamp(51px,12.4vw,87px);line-height:1.15;letter-spacing:-.06em;margin-bottom:24px}.hero-description{font-size:12px;line-height:1.85;margin-bottom:26px}.hero-actions{gap:26px}.button{min-height:46px;padding:12px 17px;font-size:11px;gap:42px}.text-link{font-size:11px;gap:16px}.hero-bottom{bottom:27px;padding-top:20px;font-size:7px;letter-spacing:.04em}.hero-bottom>span:nth-child(2){display:none}.scroll-cue{font-size:10px}.scroll-line{height:23px}.closing{padding-top:65px;padding-bottom:55px}.closing .eyebrow{font-size:8px;margin-bottom:30px}.closing h2{font-size:clamp(33px,8.6vw,58px);line-height:1.25;margin-bottom:48px}.closing-bottom{align-items:flex-start;gap:30px;flex-direction:column}.closing-bottom p{font-size:11px}.closing-link{font-size:17px;gap:40px;padding-bottom:13px}.closing-link span{font-size:36px}.site-footer{padding-top:37px;padding-bottom:25px}.footer-top{flex-wrap:wrap;gap:20px;padding-bottom:30px}.footer-top .brand{font-size:24px}.footer-top p{font-size:10px;width:100%;order:3}.footer-bottom{display:block;font-size:8px;padding-top:22px}.footer-bottom nav{margin-top:18px;font-size:9px;gap:20px}.back-top{width:36px;height:36px;font-size:17px}.api-notice-container{bottom:17px;left:16px}.api-notice-icon{height:38px;padding:0 11px;font-size:10px}.reveal-pending{transform:translateY(24px)}}
@media(max-width:360px){:root{--gutter:20px}.header-cta{padding:8px 10px;gap:8px}.brand-symbol{display:none}.hero{min-height:830px;padding-top:132px}.hero h1{font-size:49px}.hero-description{font-size:11px}.hero .eyebrow{font-size:7px}.hero-actions{gap:20px}.button{gap:26px}.closing h2{font-size:31px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal-pending{opacity:1;transform:none}.hero-copy{opacity:1!important}.hero-copy{transform:none!important}}