/* ========== 单片正文页 ========== */
.article-page .list-section {
  background: url("../images/content.png") center top / cover no-repeat;
  padding: 32px 0 60px;
}

.article-page .list-container {
  gap: 24px;
}

/* 左侧菜单 */
.article-sidebar {
  flex: 0 0 200px;
}

.article-sidebar:has(.article-sidebar-list--cols) {
  flex: 0 0 330px;
}

/* 无菜单或仅 1 个菜单时隐藏侧栏 */
.article-sidebar:empty,
.article-sidebar:not(:has(.article-sidebar-list > li)) {
  display: none;
}

/* 侧栏隐藏时：正文居中 */
.article-page .list-container:not(:has(.article-sidebar .article-sidebar-list > li)) {
  justify-content: center;
}

.article-page .list-container:not(:has(.article-sidebar .article-sidebar-list > li)) .article-main {
  flex: 0 1 980px;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
}

/* 仅 CMS 双层 ul 嵌套时：外层不参与布局，内层保留 gap */
.article-sidebar > .article-sidebar-list:not(.article-sidebar-list--cols):has(.article-sidebar-list) {
  display: contents;
}

.article-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 两列：只改布局，按钮变窄，字体样式与一列相同 */
.article-sidebar-list--cols,
.article-sidebar-list .article-sidebar-list--cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  width: 100%;
  align-items: start;
}

/* 一列、两列共用，不要单独写 --cols 覆盖 */
.article-sidebar-list li a {
  display: block;
  padding: 14px 12px;
  font-size: 14px;
  color: var(--blue-primary);
  text-align: center;
  letter-spacing: 1px;
  line-height: 1.35;
  background: var(--white);
  border: 1px solid #7eb8e8;
  border-radius: 2px;
  transition: background 0.2s, color 0.2s;
}

.article-sidebar-list li a:hover {
  background: #e8f4fd;
}

.article-sidebar-list li.active a {
  background: #d6ebfa;
  border-color: var(--blue-primary);
  font-weight: 600;
}

/* 右侧正文 */
.article-main {
  flex: 1;
  min-width: 0;
  background: var(--white);
  border: 1px solid #dce6f0;
  padding: 24px 36px 40px;
  border-radius: 2px;
}

.article-heading {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue-primary);
  text-align: center;
  padding: 12px 0 28px;
  letter-spacing: 2px;
}

.article-content {
  font-family: inherit;
  font-size: 14px;
  line-height: inherit;
  color: #333;
  text-align: justify;
}

.article-content p {
  margin-bottom: 16px;
  text-indent: 2em;
}

.article-content p:has(img),
.article-content [id^="vsb_content"] p:has(img),
.article-content [id*="vsb_content"] p:has(img) {
  text-indent: 0 !important;
  text-align: center;
}

.article-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 8px auto;
}

.article-content,
.article-content [id^="vsb_content"],
.article-content [id*="vsb_content"],
.article-content p,
.article-content span,
.article-content div,
.article-content li,
.article-content td,
.article-content th,
.article-content font {
  font-family: inherit !important;
  font-size: inherit !important;
  line-height: inherit !important;
}

.article-content--video {
  text-align: center;
}

.article-content--video p {
  text-indent: 0;
}

.article-content--video video,
.article-content--video #_vsb_player {
  width: 100% !important;
  max-width: 900px;
  height: auto !important;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  display: block;
  float: none !important;
}

.article-content--video [id^="vsb_content"] {
  max-width: 900px;
  margin: 0 auto;
}
/* ========== 单片正文页：取消撑高 + PDF 加高 ========== */
.article-page .list-section {
  min-height: auto !important;
  padding: 32px 0 40px;
}

.article-page .list-container {
  gap: 24px;
  align-items: flex-start;
}

.article-page .article-main {
  height: auto;
  min-height: 0;
  align-self: flex-start;
}

.article-page .article-main:has(.article-content iframe),
.article-page .article-main:has(.article-content embed),
.article-page .article-main:has(.article-content object) {
  padding-bottom: 16px !important;
}

/* 去掉 iframe 外层固定高度 */
.article-content div:has(> iframe),
.article-content div:has(> embed),
.article-content p:has(> iframe),
.article-content [id^="vsb_content"] div:has(iframe),
.article-content [id*="vsb_content"] div:has(iframe),
.article-content [id^="vsb_content"] p:has(iframe),
.article-content [id*="vsb_content"] p:has(iframe) {
  height: auto !important;
  min-height: 0 !important;
  max-height: none !important;
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
  overflow: visible !important;
}

/* 加高 PDF 预览区 */
.article-content iframe,
.article-content embed,
.article-content object,
.article-content [id^="vsb_content"] iframe,
.article-content [id*="vsb_content"] iframe,
.article-main .article-content iframe {
  display: block !important;
  width: 100% !important;
  height: calc(100vh - 260px) !important;
  min-height: 680px !important;
  max-height: none !important;
  border: none !important;
  margin: 0 auto !important;
}

.article-content p:has(iframe),
.article-content [id^="vsb_content"] p:has(iframe),
.article-content [id*="vsb_content"] p:has(iframe) {
  text-indent: 0 !important;
  text-align: center;
  margin-bottom: 0 !important;
}

.article-content:has(iframe),
.article-content:has(embed),
.article-content:has(object) {
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
}