* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background: #231F1C;
  color: #2a2118;
  line-height: 1.75;
  min-height: 100vh;
}

a {
  color: #b85c00;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: 640px;
  max-width: 100%;
  margin: 24px auto 0;
  background: #fff8f0;
  border-radius: 28px;
  padding: 28px 28px 96px;
  min-height: calc(100vh - 48px);
}

.brand {
  font-size: 22px;
  font-weight: 700;
  color: #2a2118;
  letter-spacing: 0.04em;
}

.brand a {
  color: inherit;
  text-decoration: none;
}

.nav {
  margin: 14px 0 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid #e8d8c4;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 15px;
}

.nav a {
  color: #5a4634;
}

.nav a:hover {
  color: #E08912;
}

h1 {
  font-size: 32px;
  line-height: 1.35;
  font-weight: 700;
  margin: 8px 0 18px;
  color: #2a2118;
}

h2 {
  font-size: 22px;
  line-height: 1.4;
  margin: 32px 0 14px;
  color: #2a2118;
  padding-left: 12px;
  border-left: 4px solid #E08912;
}

h3 {
  font-size: 17px;
  line-height: 1.45;
  margin: 18px 0 8px;
  color: #3a2e22;
}

p {
  font-size: 15px;
  margin: 0 0 14px;
  text-align: justify;
}

.lead-tags {
  display: flex;
  gap: 16px;
  margin: 10px 0 18px;
  font-size: 15px;
  color: #6b5340;
}

.lead-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lead-tags svg {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 22px;
}

.btn-row a,
.fixed-bar a,
.zh-cta a {
  display: inline-block;
  background: #E08912;
  color: #fff8f0;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
}

.btn-row a:hover,
.fixed-bar a:hover,
.zh-cta a:hover {
  background: #c9740a;
  text-decoration: none;
}

.btn-row a.primary {
  background: #c9740a;
  font-size: 15px;
  padding: 12px 20px;
}

.timeline {
  border-left: 2px solid #E08912;
  margin: 12px 0 8px 6px;
  padding-left: 18px;
}

.timeline article {
  position: relative;
  margin-bottom: 20px;
}

.timeline article::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent #E08912;
}

.timeline time {
  display: block;
  font-size: 13px;
  color: #8a7058;
  margin-bottom: 4px;
}

.faq-item {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #efe0d0;
}

.faq-item:last-child {
  border-bottom: none;
}

.site-footer {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid #e8d8c4;
  font-size: 12px;
  color: #7a6450;
  line-height: 1.7;
}

.site-footer p {
  font-size: 12px;
  text-align: left;
  margin-bottom: 8px;
}

.fixed-bar {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 640px;
  max-width: 100%;
  background: #E08912;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  padding: 12px 14px;
  z-index: 100;
  border-radius: 16px 16px 0 0;
}

.fixed-bar a {
  background: #fff8f0;
  color: #8a4e08;
  padding: 8px 12px;
  font-size: 13px;
}

.fixed-bar a:hover {
  background: #fff;
  color: #6b3c06;
}

.zh-cta {
  text-align: center;
  padding: 4px 0;
}

.zh-cta a {
  background: #fff8f0;
  color: #8a4e08;
  padding: 10px 28px;
  font-size: 15px;
}

@media (max-width: 680px) {
  .wrap {
    margin: 0;
    border-radius: 0;
    width: 100%;
    padding: 20px 16px 100px;
  }

  .fixed-bar {
    width: 100%;
    border-radius: 0;
  }

  h1 {
    font-size: 26px;
  }
}