/* VoiceHot 官网 · Minimal Gov 设计令牌 */
:root {
  --c-void: #f8fafc;
  --c-surface: #ffffff;
  --c-alt: #f1f5f9;
  --c-text: #0f172a;
  --c-muted: #64748b;
  --c-faint: #94a3b8;
  --c-border: #e2e8f0;
  --c-blue: #1d4ed8;
  --c-blue-hi: #1e40af;
  --c-teal: #0d9488;
  --c-teal-hi: #0f766e;
  --c-green: #059669;
  --c-green-soft: #ecfdf5;
  --c-orange: #ea580c;
  --c-purple: #7c3aed;
  --c-blue-soft: rgba(29, 78, 216, 0.08);
  --c-teal-soft: rgba(13, 148, 136, 0.08);
  --c-footer-bg: #0f172a;
  --c-on-dark: #ffffff;
  --c-on-dark-muted: #94a3b8;
  --c-shadow: 0 4px 20px rgba(17, 24, 39, 0.06);
  --c-shadow-lg: 0 20px 50px rgba(29, 78, 216, 0.1);
  --font-body: "DM Sans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Outfit", "DM Sans", "PingFang SC", sans-serif;
  --wrap: min(1120px, calc(100% - 2.5rem));
  --header-h: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3.5rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-void);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--c-blue);
  text-decoration: none;
}

a:hover {
  color: var(--c-blue-hi);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.25;
}

p {
  margin: 0 0 var(--c-space-4, var(--space-4));
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}