:root {
  --bg-dark: #0b0f1a;
  --bg-warm: #1d1b16;
  --accent: #f7b267;
  --accent-strong: #f79d65;
  --accent-cool: #6dd3ce;
  --text: #f5f1e9;
  --muted: #c6c1b7;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.16);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --font-sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-display: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", serif;
  --font-mono: "Cascadia Code", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg-dark);
  min-height: 100vh;
}

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

button {
  font-family: inherit;
}

.btn {
  border: none;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  color: #1b1410;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 12px 30px rgba(247, 157, 101, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(247, 157, 101, 0.35);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.14);
  color: var(--text);
  box-shadow: none;
}

.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(109, 211, 206, 0.2);
  color: var(--accent-cool);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}