.st-list {
  display: grid;
  gap: 12px;
  max-width: 900px;
  margin: 40px auto;
  font-family: Arial, sans-serif;
}

.st-list-item {
  border: 1px solid #e6e6e6;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.st-list-head {
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  background: #fff;
}

.st-list-head:hover {
  background: #f7f7f7;
}

.st-list-title {
  line-height: 1.4;
  text-align: left;
}

.st-list-arrow {
  font-weight: 900;
  font-size: 20px;
  min-width: 24px;
  text-align: center;
}

.st-list-body {
  display: none;
  padding: 14px 16px 18px 16px;
  border-top: 1px solid #eee;
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
}

.st-list-item.open .st-list-body {
  display: block;
}

.st-list-item.open .st-list-arrow {
  transform: rotate(45deg);
}

.st-meta-row {
  margin-bottom: 6px;
}

.st-desc {
  margin-top: 10px;
}

.st-agenda {
  margin-top: 10px;
  opacity: 0.9;
}

.st-agenda ul li {
  font-size: 1.1em;
}

.st-empty,
.st-error {
  max-width: 900px;
  margin: 40px auto;
  padding: 16px;
  border-radius: 12px;
  font-family: Arial, sans-serif;
}

.st-empty {
  background: #f7f7f7;
}

.st-error {
  background: #ffe9e9;
  color: #8a1f1f;
}

.st-list-item {
  scroll-margin-top: 110px;
}