/* 公共结构样式 */
.SYmb-25553 {
  margin-bottom: 1rem;
}

.SYmb-25553 .header {
  background-image: linear-gradient(to right, rgb(175, 9, 9), rgb(175, 9, 9));
}

.header h3 {
  padding-left: 0.5rem;
  padding-top: 0.5rem;
  width: 95%;
  color: white;
  font-size: 1.125rem;
  margin-bottom: 0.125rem;
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header .tag-buttons {
  padding-left: 0.5rem;
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: white;
}

.header .tag-buttons button {
  padding: 0.375rem;
  font-size: 10px;
  border-radius: 4px;
  background-color: white;
}

.content-box {
  padding: 0rem;
  background-color: white;
  border-radius: 0.75rem;
  margin-top: 0.75rem;
  position: relative;
  z-index: 10;
}

.note_text .table table {
  border-collapse: collapse;
  width: 100%;
  margin: 0px;
  padding: 0;
  table-layout: fixed;
  box-sizing: border-box;
}

.note_text .table th {
  height: 38px;
  padding: 0;
  margin: 0;
  border: 0;
  box-sizing: border-box;
  text-align: center;
}

.note_text .table a {
  text-decoration: none;
}

.ad-list {
  display: flex;
  flex-wrap: wrap;
  column-gap: 5px; /* 左右间距 */
  row-gap: 5px;    /* 上下间距 */
  max-width: 750px;
  margin: auto;
}

.ad-item {
  padding: 5px;
  border-radius: 8px;
  font-weight: bold;
  text-align: center;
  color: #000;
  box-sizing: border-box;
  flex: 0 0 100%; /* 默认每排一个 */
}

/* 每排2个（第6-15个） */
.ad-item:nth-child(n+6):nth-child(-n+15) {
  flex: 0 0 calc((100% - 5px) / 2); /* 左右各5px */
}

/* 每排3个（第20-24个） */
.ad-item:nth-child(n+19):nth-child(-n+24) {
  flex: 0 0 calc((100% - 10px) / 3); /* 两个5px间距 */
}