:root{--color-bg:#0b1020;--color-bg-soft:#111936;--color-surface:rgba(255,255,255,0.08);--color-surface-strong:rgba(255,255,255,0.14);--color-text:#f7f8ff;--color-muted:#b8c0d9;--color-accent:#8ef6d2;--color-accent-strong:#5fe0ff;--color-warning:#ffd166;--space-1:0.5rem;--space-2:0.75rem;--space-3:1rem;--space-4:1.5rem;--space-5:2rem;--space-6:3rem;--radius-md:1rem;--radius-lg:1.5rem;--shadow-card:0 24px 80px rgba(0,0,0,0.28)}*{box-sizing:border-box}html{scroll-behavior:smooth}body,html{min-width:0}body{margin:0;overflow-x:hidden;background:radial-gradient(circle at top left,rgba(95,224,255,.22),transparent 34rem),radial-gradient(circle at 80% 10%,rgba(142,246,210,.18),transparent 30rem),var(--color-bg);color:var(--color-text);font-family:Arial,Noto Sans TC,PingFang TC,Microsoft JhengHei,sans-serif}a{color:inherit}button,input,textarea{font:inherit}