html.intro-lock,html.intro-lock body{overflow:hidden!important}
body.intro-preload .page{opacity:0;transform:scale(.985);filter:blur(8px)}
body.intro-ready .page{opacity:1;transform:scale(1);filter:blur(0);transition:opacity 1.3s ease,transform 1.3s ease,filter 1.3s ease}
#test-cn-intro{position:fixed;inset:0;z-index:999999;display:flex;align-items:center;justify-content:center;overflow:hidden;background:radial-gradient(circle at 50% 42%,rgba(45,160,255,.24),transparent 30%),radial-gradient(circle at 80% 64%,rgba(128,55,255,.22),transparent 36%),linear-gradient(120deg,#020616 0%,#061136 54%,#14002d 100%);opacity:1;pointer-events:all}
#test-cn-intro:before{content:"";position:absolute;inset:-20%;background:linear-gradient(115deg,transparent 0%,rgba(68,210,255,.10) 45%,transparent 62%),repeating-linear-gradient(90deg,rgba(255,255,255,.025) 0,rgba(255,255,255,.025) 1px,transparent 1px,transparent 90px),repeating-linear-gradient(0deg,rgba(255,255,255,.018) 0,rgba(255,255,255,.018) 1px,transparent 1px,transparent 90px);transform:rotate(-8deg) scale(1.12);animation:introGrid 5s linear infinite}
#test-cn-intro:after{content:"";position:absolute;width:min(68vw,620px);height:min(68vw,620px);border-radius:999px;background:radial-gradient(circle,rgba(60,180,255,.18),transparent 62%);filter:blur(18px);animation:introPulse 2.2s ease-in-out infinite}
.intro-title-wrap{position:relative;z-index:2;text-align:center}
.intro-title{position:relative;display:inline-block;font-family:Arial,"Microsoft YaHei",sans-serif;font-size:clamp(52px,9vw,118px);line-height:1;font-weight:900;letter-spacing:.16em;color:rgba(205,224,255,.90);-webkit-text-fill-color:rgba(205,224,255,.90);text-shadow:0 0 12px rgba(255,255,255,.28),0 0 34px rgba(65,190,255,.50),0 0 68px rgba(95,85,255,.34);animation:introTitleIn .75s cubic-bezier(.2,.9,.2,1) both}
.intro-title:before{content:"TEST-CN";position:absolute;inset:0;color:transparent;-webkit-text-fill-color:transparent;background:linear-gradient(100deg,transparent 0%,rgba(255,255,255,0) 28%,rgba(255,255,255,1) 43%,rgba(95,235,255,1) 50%,rgba(255,255,255,1) 57%,rgba(255,255,255,0) 72%,transparent 100%);background-size:260% 100%;background-position:-180% 0;-webkit-background-clip:text;background-clip:text;text-shadow:none;animation:introSweepOnce 2.7s linear .45s forwards;pointer-events:none}
.intro-sub{margin-top:18px;font-size:clamp(10px,2.5vw,14px);letter-spacing:.56em;color:rgba(125,220,255,.76);text-transform:uppercase;animation:introSubIn .9s ease .24s both}
#test-cn-intro.intro-hide{opacity:0;transform:scale(1.035);filter:blur(12px);transition:opacity .9s ease,transform .9s ease,filter .9s ease;pointer-events:none}
@keyframes introTitleIn{from{opacity:0;transform:translateY(22px) scale(.92);filter:blur(12px)}to{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}}
@keyframes introSubIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes introSweepOnce{0%{background-position:-180% 0}100%{background-position:180% 0}}
@keyframes introPulse{0%,100%{opacity:.62;transform:scale(.94)}50%{opacity:1;transform:scale(1.06)}}
@keyframes introGrid{from{transform:rotate(-8deg) scale(1.12) translate3d(0,0,0)}to{transform:rotate(-8deg) scale(1.12) translate3d(90px,60px,0)}}
@media(max-width:768px){.intro-title{font-size:clamp(48px,15vw,74px);letter-spacing:.10em}.intro-sub{letter-spacing:.32em}}