/* ----------------------- Trang chính sách ----------------------- */
.po-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  margin-top: 30px;
  align-items: start;
}

/* Mục lục bên trái, đứng yên khi cuộn */
.po-toc {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px;
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.po-toc-title {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: #888;
  text-transform: uppercase;
}

.po-toc a {
  padding: 8px 10px;
  border-left: 3px solid transparent;
  border-radius: 4px;
  color: #444;
  font-size: 14px;
  text-decoration: none;
}

.po-toc a:hover {
  background-color: #f5f6ff;
}

.po-toc a.active {
  border-left-color: #4a5cf0;
  background-color: #eef0fe;
  color: #3f51b5;
  font-weight: 500;
}

/* Nội dung */
.po-content {
  padding: 24px 32px;
  border-radius: 8px;
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  color: #333;
  font-size: 15px;
  line-height: 1.7;
}

.po-updated,
.po-contact {
  margin: 0 0 8px;
  font-size: 13px;
  color: #888;
}

.po-contact a {
  color: #4a5cf0;
}

.po-content [data-lang][hidden],
.po-contact[hidden] {
  display: none;
}

.po-section {
  scroll-margin-top: 90px;
  padding-top: 8px;
}

.po-section + .po-section {
  margin-top: 28px;
  border-top: 1px solid #eee;
}

.po-section h2 {
  margin: 16px 0 8px;
  font-size: 22px;
  color: #222;
}

.po-section h3 {
  margin: 20px 0 6px;
  font-size: 16px;
  color: #3f51b5;
}

.po-section p {
  margin: 0 0 10px;
}

.po-section ul {
  margin: 0 0 10px;
  padding-left: 22px;
}

.po-section li {
  margin-bottom: 6px;
}

.po-section a {
  color: #4a5cf0;
}

@media (max-width: 900px) {
  .po-layout {
    grid-template-columns: 1fr;
  }

  .po-toc {
    position: static;
  }

  .po-content {
    padding: 20px;
  }
}