:root{--bg:#050b16;--ink:#eef3ff;--muted:#9aabc8;--line:rgba(160,185,235,.16);--accent:#8eafff;--mint:#7fe0d4;color-scheme:dark}
*{box-sizing:border-box}
html,body{min-height:100%}
body{margin:0;display:flex;flex-direction:column;min-height:100vh;min-height:100dvh;background:radial-gradient(1100px 760px at 18% 8%,#12284a 0%,transparent 62%),radial-gradient(900px 700px at 88% 92%,#0d2b38 0%,transparent 60%),var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}
/* A slow aurora under the particles; the canvas draws on top of it. */
body::before{content:"";position:fixed;inset:-20%;z-index:0;pointer-events:none;background:radial-gradient(38% 30% at 30% 32%,rgba(86,120,255,.20),transparent 70%),radial-gradient(34% 28% at 72% 66%,rgba(60,210,190,.14),transparent 70%),radial-gradient(26% 22% at 60% 20%,rgba(170,130,255,.10),transparent 70%);filter:blur(40px);animation:aurora 30s ease-in-out infinite alternate}
@keyframes aurora{to{transform:translate3d(4%,-3%,0) rotate(8deg) scale(1.08)}}
#field{position:fixed;inset:0;width:100%;height:100%;z-index:1;pointer-events:none}
a{color:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--mint);outline-offset:4px}
.top{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:26px clamp(16px,5vw,64px)}
.brand{text-decoration:none;font-weight:800;font-size:21px;letter-spacing:-.5px}
.brand span{color:var(--accent)}
.lang{font:inherit;font-size:14px;font-weight:600;color:var(--ink);background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:999px;padding:7px 18px;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:border-color .2s,background .2s}
.lang:hover{border-color:rgba(142,175,255,.55);background:rgba(142,175,255,.08)}
.stage{position:relative;z-index:2;flex:1;width:min(560px,calc(100% - 32px));margin:clamp(20px,9vh,96px) auto 48px}
.eyebrow{margin:0 0 14px;font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--mint)}
h1{margin:0;font-size:clamp(36px,6vw,58px);line-height:1.12;letter-spacing:-1.5px;font-weight:750;background:linear-gradient(100deg,#fff 0%,#d6e1ff 38%,#8eafff 72%,#7fe0d4 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{margin:18px 0 34px;color:var(--muted);font-size:17px}
.sites{position:relative;list-style:none;margin:0;padding:10px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(180deg,rgba(20,34,62,.58),rgba(8,15,30,.58));-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:0 30px 80px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06)}
.sites li{position:relative}
.sites li+li{border-top:1px solid var(--line)}
/* --a (0..1) is the row's hover amount; sites.js drives it with the scale spring. */
.site{--a:0;position:relative;display:grid;grid-template-columns:40px 1fr auto;align-items:center;gap:16px;padding:18px 20px;border-radius:14px;text-decoration:none;transform-origin:50% 50%;background:rgba(142,175,255,calc(var(--a)*.11));box-shadow:inset 0 0 0 1px rgba(142,175,255,calc(var(--a)*.38)),0 calc(var(--a)*18px) calc(var(--a)*44px) rgba(0,0,0,calc(var(--a)*.4))}
.site.near{z-index:1}
.index{font:600 13px/1 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1px;color:var(--muted)}
.text{min-width:0}
.text strong{display:block;font-size:20px;font-weight:650;letter-spacing:-.2px;line-height:1.35}
.text small{display:block;margin-top:4px;font:13.5px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);overflow-wrap:anywhere}
.text small span{white-space:nowrap}
.arrow{font-size:20px;color:var(--accent);opacity:calc(.45 + var(--a)*.55);transform:translate(calc(var(--a)*3px),calc(var(--a)*-3px))}
.preview{position:fixed;left:0;top:0;z-index:3;width:320px;margin:0;border-radius:16px;overflow:hidden;border:1px solid rgba(160,185,235,.24);background:#0b1426;box-shadow:0 30px 70px rgba(0,0,0,.55);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s ease,visibility 0s linear .22s}
.preview.on{opacity:1;visibility:visible;transition:opacity .22s ease}
.preview img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;object-position:top;background:#0e1830}
.preview figcaption{display:flex;align-items:center;gap:8px;padding:9px 14px;font:12.5px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--muted);border-top:1px solid var(--line)}
.preview .dot{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}
footer{position:relative;z-index:2;padding:0 16px 30px;text-align:center;font-size:14px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--ink)}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.stage>*,.sites li{animation:rise .8s cubic-bezier(.2,.7,.2,1) both}
.stage>:nth-child(2){animation-delay:.06s}.stage>:nth-child(3){animation-delay:.12s}.stage>.sites{animation-delay:.18s}
.sites li:nth-child(1){animation-delay:.3s}.sites li:nth-child(2){animation-delay:.38s}.sites li:nth-child(3){animation-delay:.46s}.sites li:nth-child(4){animation-delay:.54s}.sites li:nth-child(n+5){animation-delay:.62s}
@media(max-width:560px){.site{grid-template-columns:28px 1fr auto;gap:12px;padding:15px 12px}.text strong{font-size:17.5px}.lede{font-size:16px}}
@media(prefers-reduced-motion:reduce){body::before,.stage>*,.sites li{animation:none}}