/* 基本樣式 */
body {
  margin: 0;
  font-family: "Noto Sans TC", sans-serif;
  background-color: #f7f7f7;
  color: #333;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  line-height: 1.4;
}

section {
  padding: 2rem 0;
}

/* Header */
.site-header {
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-header img {
  height: 80px;
}

/* Footer */
footer {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* CTA Button Image */
.fixed button img {
  cursor: pointer;
  transition: transform 0.2s;
}

.fixed button img:hover {
  transform: scale(1.05);
}

/* FAQ */
details {
  background: #fff;
  border-radius: 6px;
  padding: 1rem;
  border: 1px solid #ddd;
}

details + details {
  margin-top: 1rem;
}

summary {
  font-weight: bold;
  cursor: pointer;
  outline: none;
}

/* Animations */
.animate-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-sm {
  font-size: 0.9rem;
}

.text-lg {
  font-size: 1.25rem;
}

.text-xl {
  font-size: 1.4rem;
}

.text-2xl {
  font-size: 2rem;
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

.text-red-600 { color: #dc2626; }
.text-red-700 { color: #b91c1c; }
.text-green-700 { color: #15803d; }
.bg-yellow-100 { background-color: #fef9c3; }
.bg-yellow-300 { background-color: #fcd34d; }
.bg-green-800 { background-color: #166534; }
.bg-cyan-900 { background-color: #164e63; }
.bg-emerald-900 { background-color: #064e3b; }
.bg-white { background-color: #ffffff; }

.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.text-white { color: #fff; }
.text-black { color: #000; }
.text-xs { font-size: 0.75rem; }
.max-w-md { max-width: 28rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 64rem; }
.max-w-5xl { max-width: 80rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.z-50 { z-index: 50; }
.fixed { position: fixed; }
.bottom-2 { bottom: 0.5rem; }
.right-2 { right: 0.5rem; }
.w-20 { width: 5rem; }
.w-36 { width: 9rem; }
.h-12 { height: 3rem; }
.h-20 { height: 5rem; }