:root{--bg: #070a15;--surface: #0e1526;--ink: #eaf0fb;--muted: #aab6d0;--line: rgba(255, 255, 255, .08);--accent: #25b6f1;--radius: 16px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{position:relative;min-height:100vh;display:flex;flex-direction:column}.aurora{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;overflow:hidden;pointer-events:none}.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.45;will-change:transform}.blob-1{width:46vw;height:46vw;min-width:320px;min-height:320px;left:-6vw;top:-8vw;background:radial-gradient(circle at 30% 30%,#25b6f1,#1e3a8a 60%,transparent 70%);animation:drift1 22s ease-in-out infinite alternate}.blob-2{width:40vw;height:40vw;min-width:280px;min-height:280px;right:-4vw;top:4vw;background:radial-gradient(circle at 60% 40%,#a855f7,#4f46e5 60%,transparent 70%);animation:drift2 26s ease-in-out infinite alternate}.blob-3{width:44vw;height:44vw;min-width:300px;min-height:300px;left:24vw;bottom:-16vw;background:radial-gradient(circle at 50% 50%,#06b6d4,#0ea5e9 55%,transparent 70%);animation:drift3 30s ease-in-out infinite alternate}@keyframes drift1{to{transform:translate3d(8vw,6vh,0) scale(1.15)}}@keyframes drift2{to{transform:translate3d(-7vw,8vh,0) scale(1.1)}}@keyframes drift3{to{transform:translate3d(6vw,-7vh,0) scale(1.2)}}.grid-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:radial-gradient(ellipse at 50% 25%,#000 25%,transparent 72%);mask-image:radial-gradient(ellipse at 50% 25%,#000 25%,transparent 72%)}.vignette{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 50% 35%,transparent 45%,rgba(3,5,12,.65) 100%)}.app-nav{position:sticky;top:0;z-index:3;display:flex;align-items:center;padding:clamp(12px,3vw,18px) clamp(16px,4vw,28px);background:#070a1599;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}.brand-mark{width:14px;height:14px;border-radius:5px;background:radial-gradient(circle at 30% 30%,#8ef0ff,var(--accent));box-shadow:0 0 14px #25b6f1cc}.brand-text{font-size:clamp(1rem,2.6vw,1.15rem);font-weight:700;letter-spacing:.02em;color:var(--ink)}.app-main{position:relative;z-index:1;flex:1;width:100%;padding-bottom:88px}@media (max-width: 640px){.blob{filter:blur(60px);opacity:.35}}@media (hover: none){.blob{animation:none}}@media (prefers-reduced-motion: reduce){.blob{animation:none}}