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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue',
    'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #4f4f4f;
  background: #f6f7f8;
}

a {
  color: #ff9211;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  background: #ff9211;
  color: #fff;
  padding: 20px 16px;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.site-header p {
  margin: 6px 0 0;
  font-size: 14px;
  opacity: 0.95;
}

.site-nav {
  margin-top: 12px;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.site-nav a {
  color: #fff;
  font-size: 14px;
  opacity: 0.95;
}

.site-nav a:hover {
  opacity: 1;
  text-decoration: underline;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.card + .card {
  margin-top: 16px;
}

h2 {
  margin: 28px 0 12px;
  font-size: 18px;
  color: #333;
}

h2:first-child {
  margin-top: 0;
}

h3 {
  margin: 20px 0 8px;
  font-size: 16px;
  color: #333;
}

p,
ul,
ol {
  margin: 0 0 12px;
}

ul,
ol {
  padding-left: 1.4em;
}

li {
  margin-bottom: 6px;
}

.meta {
  font-size: 14px;
  color: #979797;
  margin-bottom: 20px;
}

.highlight-box {
  background: #fff8f0;
  border-left: 4px solid #ff9211;
  padding: 12px 14px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
}

.contact-list {
  list-style: none;
  padding: 0;
}

.contact-list li {
  padding: 10px 0;
  border-bottom: 1px solid #eee;
}

.contact-list li:last-child {
  border-bottom: none;
}

.faq-item {
  margin-bottom: 18px;
}

.faq-item strong {
  display: block;
  color: #333;
  margin-bottom: 4px;
}

.site-footer {
  text-align: center;
  padding: 24px 16px;
  font-size: 13px;
  color: #979797;
}

@media (min-width: 640px) {
  .site-header {
    padding: 28px 24px;
  }

  .site-header h1 {
    font-size: 26px;
  }

  .card {
    padding: 32px 28px;
  }
}