/* hero: nav, the stage (poster img + WebGL canvas), the giant animated handle, CTAs, scroll cue, cursor glow. */
.nav{position:fixed;inset:0 0 auto 0;z-index:60;padding:14px 0;transition:background .3s,padding .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.stuck{background:rgba(8,3,20,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:8px 0;border-color:var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font:800 17px/1 var(--font);letter-spacing:.06em;white-space:nowrap}
.brand .ava{width:38px;height:38px}
.brand small{display:block;font:600 11px/1.2 var(--font);letter-spacing:.22em;color:var(--cyan);margin-top:3px}
.nav ul{display:flex;gap:4px;margin-left:auto;list-style:none}
.nav li a{display:block;padding:9px 14px;border-radius:999px;font:600 15px/1 var(--font);color:var(--muted);transition:color .2s,background .2s}
.nav li a:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav .btn{padding:11px 20px;font-size:15px}
@media(max-width:860px){.nav ul{display:none}.nav .btn{margin-left:auto}}

.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate;padding:0;background:#0a0418 var(--lqip,none) center/cover no-repeat}
.hero .stage{position:absolute;inset:-2% -2% -2% -2%;z-index:-3;will-change:transform}
.hero .stage img,.hero .stage canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .stage img{animation:kb 26s ease-in-out infinite alternate}
@keyframes kb{from{transform:scale(1.02)}to{transform:scale(1.09) translate(-1%,-1%)}}
.hero .stage canvas{opacity:0;transition:opacity 1.4s}
.hero.live .stage canvas{opacity:1}.hero.live .stage img{animation:none}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:linear-gradient(180deg,rgba(6,2,13,.62) 0,transparent 26%,transparent 46%,rgba(6,2,13,.55) 70%,rgba(6,2,13,.94) 100%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 50% 55%,transparent 45%,rgba(6,2,13,.55) 100%);mix-blend-mode:multiply}
.hero .inner{width:var(--wrap);margin-inline:auto;padding:clamp(90px,16vh,160px) 0 clamp(30px,6vh,64px);text-align:center;display:flex;flex-direction:column;align-items:center;gap:clamp(6px,1.4vh,14px)}
.hero .wm{position:absolute;z-index:1;left:max(22px,5vw);top:clamp(84px,14vh,136px);width:min(27vw,380px);height:auto;filter:drop-shadow(0 0 22px rgba(255,95,210,.55));animation:wmIn 1.6s var(--ease) .2s both}
@media(max-width:900px),(orientation:portrait){.hero .wm{left:0;right:0;margin-inline:auto;width:min(66vw,300px);top:76px}}
.kick{font:700 clamp(12px,1.4vw,14px)/1.3 var(--font);letter-spacing:.3em;color:#d4f1fa;text-shadow:0 1px 3px rgba(0,0,0,.9),0 2px 18px rgba(0,0,0,.9)}
@media(max-width:760px){.handle{font-size:12.6vw}.cue{display:none}}
.h1{font:800 clamp(24px,4vw,52px)/1.2 var(--font);letter-spacing:.01em;text-shadow:0 4px 30px rgba(0,0,0,.75);text-wrap:balance}
.hero .sub{max-width:54ch;color:var(--ink);font:500 clamp(15px,1.5vw,18px)/1.7 var(--font);letter-spacing:0;text-shadow:0 2px 20px rgba(0,0,0,.85)}
@media(max-height:830px){.hero .sub{display:none}}
@keyframes wmIn{from{opacity:0;transform:scale(1.12);filter:blur(18px) drop-shadow(0 0 22px rgba(255,95,210,.55))}}
.hero .tag{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 10px;margin-top:4px}
.hero .tag .pill{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);background:rgba(10,4,26,.55)}

/* the handle: giant, letter-by-letter, neon */
/* gradient text can't be painted through animated child letters, so every letter carries its own slice of ONE shared gradient (fx.js sets --bw / --bx) */
.handle{position:relative;display:block;font:900 clamp(40px,11.2vw,172px)/1.02 var(--font);letter-spacing:-.025em;white-space:nowrap;perspective:800px;
  filter:hue-rotate(-18deg) drop-shadow(0 0 22px rgba(255,95,210,.55)) drop-shadow(0 6px 30px rgba(77,214,234,.35));animation:hue 11s ease-in-out infinite;will-change:filter}
@keyframes hue{50%{filter:hue-rotate(38deg) drop-shadow(0 0 22px rgba(255,95,210,.55)) drop-shadow(0 6px 30px rgba(77,214,234,.35))}}
.handle .lt{display:inline-block;color:transparent;-webkit-background-clip:text;background-clip:text;background-repeat:no-repeat;
  background-image:linear-gradient(100deg,#4dd6ea 0%,#9bd2e5 15%,#ff5fd2 44%,#ff9a52 66%,#c23fd0 86%,#7fe3f0 100%);background-size:var(--bw,100%) 100%;background-position:calc(var(--bx,0px) * -1) 0;
  animation:ltIn 1.1s var(--ease) both,flick 7s linear infinite;animation-delay:calc(var(--i) * 75ms + .5s),calc(var(--i) * 530ms + 3s);transform-origin:50% 100%}
@keyframes ltIn{from{opacity:0;transform:translateY(.6em) rotateX(80deg) scale(.5);filter:blur(16px)}}
@keyframes flick{0%,91%,95%,100%{opacity:1}92%{opacity:.35}93%{opacity:1}94%{opacity:.5}}
.handle:hover .lt{animation:ltIn 1.1s var(--ease) both,glitch .45s steps(2) 1}
@keyframes glitch{0%{transform:translate(-3px,1px);text-shadow:3px 0 #4dd6ea,-3px 0 #ff5fd2}50%{transform:translate(3px,-2px)}100%{transform:none}}
.handle-link{display:block;position:relative}
.handle-link::after{content:"在 Telegram 打開 ↗";position:absolute;left:50%;bottom:-.9em;transform:translate(-50%,6px);font:600 15px/1 var(--font);letter-spacing:.2em;color:var(--cyan-soft);opacity:0;transition:.3s;-webkit-text-fill-color:var(--cyan-soft)}
.handle-link:hover::after{opacity:1;transform:translate(-50%,0)}
.hero .sub{font:600 clamp(17px,2.6vw,26px)/1.5 var(--font);letter-spacing:.14em;color:#fff;text-shadow:0 2px 24px rgba(0,0,0,.7)}
.hero .cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:clamp(6px,1.5vh,14px)}
.cue{position:absolute;left:50%;bottom:14px;width:26px;height:42px;border:2px solid rgba(255,255,255,.45);border-radius:14px;transform:translateX(-50%);opacity:.8}
.cue::after{content:"";position:absolute;left:50%;top:8px;width:4px;height:8px;border-radius:2px;background:var(--pink);transform:translateX(-50%);animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}100%{opacity:0;transform:translate(-50%,14px)}}
@media(max-height:640px){.cue{display:none}}

/* quality governor stepped down → drop the heavy CSS effects too */
body.lite .handle,body.lite .grad{animation:none;filter:none}
body.lite .handle{filter:drop-shadow(0 0 14px rgba(255,95,210,.5))}
body.lite .card,body.lite .tgw,body.lite .nav.stuck,body.lite .btn.ghost{backdrop-filter:none;-webkit-backdrop-filter:none}