:root{--brand-hue:250;--accent:79 124 255;--accent-2:122 162 255;--accent-glow:oklch(0.70 0.18 260);--font-sans:"Inter","Noto Sans TC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono","Menlo",monospace;--font-display:"Inter","Noto Sans TC",sans-serif;--ease-out:cubic-bezier(0.22,1,0.36,1);--ease-in-out:cubic-bezier(0.65,0,0.35,1);--dur-fast:180ms;--dur:360ms;--dur-slow:720ms;--r-sm:6px;--r-md:10px;--r-lg:16px;--r-xl:24px;--container:1240px;--nav-h:68px}:root,[data-theme=dark]{--bg:7 9 18;--bg-1:11 14 28;--bg-2:16 21 48;--bg-elev:255 255 255;--bg-elev-2:255 255 255;--line:255 255 255;--line-2:255 255 255;--fg:240 242 248;--fg-1:240 242 248;--fg-2:240 242 248;--fg-3:240 242 248;--chip:79 124 255;--chip-fg:167 192 255;--grid-line:rgba(255,255,255,0.04);--hero-blob-1:oklch(0.55 0.2 258/0.35);--hero-blob-2:oklch(0.62 0.16 295/0.25);--hero-blob-3:oklch(0.68 0.14 200/0.2);--shadow-lg:0 30px 80px -20px rgba(0,0,0,0.6),0 10px 30px -10px rgba(79,124,255,0.25);--success:16 185 129;--warning:217 119 6;--danger:220 38 38;--r:10px}[data-theme=light]{--bg:247 248 251;--bg-1:255 255 255;--bg-2:238 241 248;--bg-elev:10 20 50;--bg-elev-2:10 20 50;--line:10 20 50;--line-2:10 20 50;--fg:11 14 28;--fg-1:11 14 28;--fg-2:11 14 28;--fg-3:11 14 28;--chip:79 124 255;--chip-fg:35 72 184;--grid-line:rgba(10,20,50,0.06);--hero-blob-1:oklch(0.75 0.14 258/0.35);--hero-blob-2:oklch(0.8 0.12 295/0.25);--hero-blob-3:oklch(0.85 0.1 200/0.2);--shadow-lg:0 30px 80px -20px rgba(30,50,120,0.2),0 10px 30px -10px rgba(79,124,255,0.2);--success:16 185 129;--warning:217 119 6;--danger:220 38 38}*{box-sizing:border-box}body,html{margin:0;padding:0;background:rgb(var(--bg));color:rgb(var(--fg));font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;transition:background var(--dur) var(--ease-out),color var(--dur) var(--ease-out)}html{overflow-x:clip}body{scroll-behavior:smooth}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}::-moz-selection{background:rgb(var(--accent));color:#fff}::selection{background:rgb(var(--accent));color:#fff}.display-xl{font-size:clamp(44px,6vw,84px);line-height:1.02;letter-spacing:-.03em;font-weight:600}.display-lg{font-size:clamp(36px,4.5vw,60px);line-height:1.05;letter-spacing:-.025em;font-weight:600}.display-md{font-size:clamp(28px,3.2vw,42px);line-height:1.1;letter-spacing:-.02em;font-weight:600}.title{font-size:clamp(20px,1.8vw,24px);line-height:1.3;font-weight:600;letter-spacing:-.01em}.body-lg{font-size:18px}.body,.body-lg{line-height:1.65;color:rgb(var(--fg-1)/.72)}.body{font-size:15px}.small{font-size:13px;color:rgb(var(--fg-2)/.52)}.eyebrow{font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:rgb(var(--accent))}.eyebrow,.mono{font-family:var(--font-mono)}.gradient-text{background:linear-gradient(100deg,rgb(var(--fg)) 0,rgb(var(--accent-2)) 50%,rgb(var(--fg)) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.container{max-width:var(--container);margin:0 auto;padding:0 32px}@media (max-width:640px){.container{padding:0 20px}}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-size:14px;font-weight:500;border:1px solid transparent;transition:all var(--dur-fast) var(--ease-out);white-space:nowrap}.btn-primary{background:rgb(var(--accent));color:#fff;box-shadow:0 6px 20px -4px rgba(79,124,255,.5)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px -6px rgba(79,124,255,.7)}.btn-ghost{background:rgb(var(--bg-elev)/.03);color:rgb(var(--fg));border-color:rgb(var(--line)/.08)}.btn-ghost:hover{background:rgb(var(--bg-elev-2)/.05);border-color:rgb(var(--line-2)/.14)}.btn-arrow{transition:transform var(--dur-fast)}.btn:hover .btn-arrow{transform:translateX(3px)}.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:rgb(var(--chip)/.12);color:rgb(var(--chip-fg));font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.05em;text-transform:uppercase;border:1px solid rgb(var(--line)/.08)}.chip-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor}.card{background:rgb(var(--bg-elev)/.03);border:1px solid rgb(var(--line)/.08);border-radius:var(--r-lg);transition:all var(--dur) var(--ease-out)}.card:hover{background:rgb(var(--bg-elev-2)/.05);border-color:rgb(var(--line-2)/.14)}section{position:relative}.section{padding:clamp(64px,10vw,140px) 0}.section-sm{padding:clamp(48px,6vw,80px) 0}.section-head{display:flex;flex-direction:column;gap:16px;margin-bottom:56px;max-width:760px}.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--grid-line) 1px,transparent 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