:root{color-scheme:dark;--ink:#010207;--cyan:#6ff4ff;--violet:#b38aff;--text:#f7f8fc;--muted:rgba(232,238,249,.68)}
*{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%;height:100%;overflow:hidden;background:var(--ink);color:var(--text);font-family:"Geist","Microsoft YaHei","PingFang SC",-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased}
#heroFlow,#heroBloom{position:fixed;inset:0;width:100%;height:100%;display:block;object-fit:cover;object-position:center;opacity:0;transition:opacity .7s ease-out;pointer-events:none}
#heroFlow{z-index:0}
#heroBloom{z-index:1;-webkit-mask-image:radial-gradient(ellipse 36% 64% at 50% 50%,#000 0 64%,rgba(0,0,0,.96) 75%,rgba(0,0,0,.36) 90%,transparent 100%);mask-image:radial-gradient(ellipse 36% 64% at 50% 50%,#000 0 64%,rgba(0,0,0,.96) 75%,rgba(0,0,0,.36) 90%,transparent 100%)}
body.film-ready #heroFlow,body.film-ready #heroBloom{opacity:1}
.hero-scrim{position:fixed;z-index:2;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 0 46%,rgba(1,2,7,.08) 58%,rgba(1,2,7,.48) 100%)}
.grain{position:fixed;z-index:5;inset:0;pointer-events:none;opacity:.035;mix-blend-mode:soft-light;background-image:repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.03) 4px);animation:grain 8s steps(8) infinite}
.brand-orbit{position:fixed;z-index:3;inset:0;pointer-events:none;opacity:0;transition:opacity 1.2s ease}.brand-orbit.ready{opacity:.9}
.brand-chip{--brand:#83efff;position:absolute;left:0;top:0;width:38px;height:38px;margin:0;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--brand) 42%,transparent);border-radius:50%;background:rgba(2,6,14,.7);box-shadow:0 0 19px color-mix(in srgb,var(--brand) 23%,transparent),inset 0 1px 0 rgba(255,255,255,.12);will-change:transform,opacity}
.brand-chip::before{content:"";position:absolute;inset:-3px;border:1px solid color-mix(in srgb,var(--brand) 20%,transparent);border-radius:50%}.brand-mark{width:21px;height:21px;display:block;color:var(--brand);fill:currentColor;filter:brightness(1.32) drop-shadow(0 0 7px color-mix(in srgb,var(--brand) 82%,transparent));opacity:.94}.brand-chip figcaption{position:absolute;top:44px;left:50%;transform:translateX(-50%);white-space:nowrap;color:color-mix(in srgb,var(--brand) 72%,transparent);font:5px/1 ui-monospace,monospace;letter-spacing:.12em}.brand-chip[data-lane="2"]{width:32px;height:32px}.brand-chip[data-lane="2"] .brand-mark{width:17px;height:17px}.brand-chip[data-lane="2"] figcaption{top:37px}
.topbar{position:fixed;z-index:7;top:0;left:0;width:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:clamp(20px,3vw,42px) clamp(24px,5vw,78px);opacity:0;animation:reveal .9s 1.1s forwards}
.brand{justify-self:start;display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;letter-spacing:.12em}.brand-logo{display:block;width:44px;height:44px;object-fit:contain;filter:drop-shadow(0 0 13px rgba(72,226,255,.30))}.brand b{display:block;font-size:15px;font-weight:500}.brand small{display:block;margin-top:4px;color:rgba(222,237,255,.46);font:7px/1 ui-monospace,monospace;letter-spacing:.22em}
.desktop-nav{justify-self:center;display:flex;align-items:center;gap:4px;padding:5px;border-radius:999px;background:rgba(255,255,255,.012);backdrop-filter:blur(12px);box-shadow:inset 0 1px 1px rgba(255,255,255,.10)}.desktop-nav::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(180deg,rgba(255,255,255,.28),rgba(255,255,255,0) 45%,rgba(255,255,255,.14));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.desktop-nav{position:relative}.desktop-nav a{padding:9px 13px;border-radius:999px;color:rgba(255,255,255,.72);font-size:11px;font-weight:400;letter-spacing:.15em;text-decoration:none;transition:color .3s,background .3s}.desktop-nav a:hover{color:#fff;background:rgba(255,255,255,.045)}
.menu-toggle{justify-self:end;display:none;width:44px;height:44px;border:0;border-radius:50%;color:#fff;background:rgba(255,255,255,.02);box-shadow:inset 0 1px 1px rgba(255,255,255,.12);backdrop-filter:blur(14px);cursor:pointer}.menu-toggle svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.close-icon{display:none}.menu-toggle[aria-expanded="true"] .menu-icon{display:none}.menu-toggle[aria-expanded="true"] .close-icon{display:block}
.mobile-menu{position:fixed;z-index:9;top:72px;left:16px;right:16px;padding:28px;display:flex;flex-direction:column;align-items:center;gap:18px;border:1px solid rgba(255,255,255,.08);border-radius:22px;background:rgba(7,9,15,.72);box-shadow:0 8px 32px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.10);backdrop-filter:blur(20px);opacity:0;transform:translateY(-10px);transition:opacity .3s ease-out,transform .3s ease-out}.mobile-menu.open{opacity:1;transform:none}.mobile-menu[hidden]{display:none}.mobile-menu a{color:rgba(255,255,255,.88);font-size:12px;font-weight:300;letter-spacing:.25em;text-decoration:none;opacity:0;transform:translateY(-8px)}.mobile-menu.open a{animation:menuItem .45s ease-out forwards;animation-delay:calc(.05s + var(--item-index)*.06s)}
.hero{position:fixed;z-index:4;inset:0;display:flex;align-items:center;justify-content:center;padding:90px clamp(24px,5vw,78px) 60px;pointer-events:none}.hero-copy{width:min(780px,58vw);margin-left:30vw;text-align:center;pointer-events:auto}.eyebrow{margin-bottom:24px;color:rgba(132,238,255,.82);font:500 8px/1 ui-monospace,monospace;letter-spacing:.30em;opacity:0;animation:softIn .8s 1.25s ease-out forwards}
h1{font-family:"STXingkai","FZShuTi","KaiTi","Kaiti SC","STKaiti","DFKai-SB",cursive;font-size:clamp(46px,5.2vw,78px);font-weight:400;line-height:1.04;letter-spacing:.015em;text-wrap:balance;text-shadow:0 12px 46px rgba(0,0,0,.66)}.stagger-line{display:flex;justify-content:center;flex-wrap:nowrap;white-space:nowrap;min-height:1em}.stagger-line.accent{margin-top:.08em;font-size:.82em}.stagger-line .stagger-char{background:linear-gradient(110deg,#fff9ea 0%,#ffd796 28%,#f7f1ff 54%,#8cecff 76%,#fff9ea 100%);background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent}.stagger-line.accent .stagger-char{background-image:linear-gradient(110deg,#f7f8ff 0%,#b9eef0 30%,#ba91ff 58%,#ffe1a8 78%,#f7f8ff 100%)}.stagger-char{display:inline-block;opacity:0;transform:translateY(24px);filter:blur(10px)}body.copy-ready .stagger-char{animation:charIn .82s cubic-bezier(.2,.72,.2,1) var(--char-delay) forwards,brushShimmer 4.8s ease-in-out calc(var(--char-delay) + .82s) infinite}
.lead{width:min(560px,90%);margin:26px auto 0;color:var(--muted);font-size:clamp(13px,1.15vw,16px);font-weight:300;line-height:1.8;letter-spacing:.035em;opacity:0;transform:translateY(20px)}body.copy-ready .lead{animation:softIn .8s 1.58s ease-out forwards}.actions{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:32px;opacity:0;transform:translateY(20px)}body.copy-ready .actions{animation:softIn .8s 1.95s ease-out forwards}
.actions a,.actions button{height:50px;padding:0 24px;border-radius:999px;color:rgba(255,255,255,.90);font:500 11px/1 inherit;letter-spacing:.18em;text-decoration:none;display:flex;align-items:center;justify-content:center;gap:16px;cursor:pointer}.liquid-glass{position:relative;overflow:hidden;border:0;background:rgba(255,255,255,.012);background-blend-mode:luminosity;backdrop-filter:blur(18px);box-shadow:inset 0 1px 1px rgba(255,255,255,.14),0 14px 42px rgba(0,0,0,.16);transition:background .3s,transform .2s,box-shadow .3s}.liquid-glass::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1.4px;background:linear-gradient(180deg,rgba(255,255,255,.48) 0%,rgba(255,255,255,.16) 20%,rgba(255,255,255,0) 40%,rgba(255,255,255,0) 60%,rgba(255,255,255,.16) 80%,rgba(255,255,255,.48) 100%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.liquid-glass:hover{background:rgba(255,255,255,.045);box-shadow:inset 0 1px 2px rgba(255,255,255,.18),0 18px 52px rgba(53,199,255,.12)}.liquid-glass:active{transform:scale(.98)}.primary b{font-size:18px;font-weight:300}.replay-action{border:0;background:transparent;opacity:.68;transition:opacity .3s}.replay-action:hover{opacity:1}
.timeline{position:fixed;z-index:7;left:5vw;right:5vw;bottom:3.5vh;height:1px;background:rgba(111,211,255,.13)}.timeline span{display:block;width:0;height:100%;background:linear-gradient(90deg,#4fefff,#ba68ff,#ffcd82);box-shadow:0 0 10px #6eeeff;animation:timeline 10s .05s linear infinite}
@keyframes charIn{0%{opacity:0;transform:translateY(24px);filter:blur(10px)}52%{opacity:.56;transform:translateY(-3px);filter:blur(4px)}100%{opacity:1;transform:none;filter:blur(0)}}@keyframes brushShimmer{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}@keyframes softIn{to{opacity:1;transform:none}}@keyframes menuItem{to{opacity:1;transform:none}}@keyframes reveal{to{opacity:1}}@keyframes timeline{to{width:100%}}@keyframes grain{50%{transform:translate3d(0,4px,0)}}
@media(max-width:900px){#heroFlow,#heroBloom{object-position:center}#heroBloom{-webkit-mask-image:radial-gradient(ellipse 58% 54% at 50% 48%,#000 0 60%,rgba(0,0,0,.94) 75%,transparent 100%);mask-image:radial-gradient(ellipse 58% 54% at 50% 48%,#000 0 60%,rgba(0,0,0,.94) 75%,transparent 100%)}.topbar{display:flex;justify-content:space-between;padding:20px 22px}.desktop-nav{display:none}.menu-toggle{display:grid;place-items:center}.hero{align-items:flex-end;padding:92px 22px 10vh;background:linear-gradient(180deg,transparent 20%,rgba(1,3,8,.08) 42%,rgba(1,3,8,.82) 100%)}.hero-copy{width:100%;margin-left:0}.eyebrow{margin-bottom:16px}h1{font-size:clamp(40px,10.8vw,62px)}.lead{font-size:13px;line-height:1.65}.actions{margin-top:24px;gap:12px;flex-wrap:wrap}.actions a,.actions button{height:46px;padding:0 19px}.brand-chip[data-lane="2"]{display:none}.timeline{bottom:2.4vh}}
@media(prefers-reduced-motion:reduce){.grain{animation:none}.stagger-char,.eyebrow,.lead,.actions,.topbar{opacity:1!important;transform:none!important;filter:none!important;animation:none!important}.timeline span{width:100%;animation:none}}