* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Microsoft YaHei", PingFang SC, Helvetica, Arial, sans-serif;
  background: #ffffff;
  color: #222;
}
.sitemap-wrap {
  position: relative;
  max-width: 1720px;
  margin: 0 auto;
  padding: 32px 24px;
  overflow: hidden;
}
.top-bg-svg {
  position: absolute;
  top:0;
  left:0;
  width:100%;
  height:320px;
  z-index: 0;
  pointer-events:none;
}
.sitemap-header {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-top: 40px;
}
.sitemap-title {
  font-size: 48px;
  font-weight: 700;
  color: #152240;
}
.back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  background: linear-gradient(90deg, #2079ef, #37c0f2);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  font-size: 15px;
  box-shadow: 0 4px 14px rgba(22,120,255,0.22);
}
.sitemap-main {
  position: relative;
  z-index: 2;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-bottom: 24px;
}
.sitemap-card {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(20, 110, 220, 0.08);
}
.card-header {
  padding: 18px 28px;
  font-size: 22px;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(90deg, #1e78ee, #32bfff);
}
.card-body {
  display: flex;
  min-height: 260px;
}
.card-left {
  width: 180px;
  padding:24px 20px;
  background: linear-gradient(90deg,#e8f4ff,#f4f9ff);
}
.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.item-row {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 0;
  font-size: 15px;
  color: #2258a9;
}
.item-row a {
  color:#2258a9;
  text-decoration:none;
}
.item-row a:hover {
  color:#2079ef;
  text-decoration:underline;
}
.v-dash-line {
  width:1px;
  background: repeating-linear-gradient(
    to bottom,
    #b8d4f0,
    #b8d4f0 5px,
    transparent 5px,
    transparent 10px
  );
}
.card-right {
  flex: 1;
  padding:24px 24px;
}
.link-row {
  padding: 9px 0;
  font-size: 15px;
  color: #334;
  border-bottom:1px dashed #e1ecf7;
}
.link-row a {
  color:#333;
  text-decoration:none;
}
.link-row a:hover {
  color:#2079ef;
}
.note-text {
  padding: 16px 20px;
  background: #f4f9ff;
  border-radius: 12px;
  color: #556;
  font-size: 14px;
  margin: 26px 0;
}
.note-text a {
  color: #2178ed;
  text-decoration: none;
}
.note-text a:hover {
  text-decoration: underline;
}
.bottom-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #556677;
  margin-bottom: 12px;
}
.copyright {
  text-align: center;
  font-size: 14px;
  color: #667;
}
@media (max-width: 920px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .card-body {
    flex-direction: column;
  }
  .card-left {
    width:100%;
  }
  .v-dash-line {
    width:100%;
    height:1px;
    background: repeating-linear-gradient(to right,#b8d4f0,#b8d4f0 5px,transparent 5px,transparent 10px);
  }
  .sitemap-title {
    font-size: 34px;
  }
  .sitemap-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}