/* 客户案例详情：单栏展示后台富文本。 */
.case-detail {
  padding: 40px 24px 64px;
  background: #f5f7fa;
}
.case-detail__article {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 48px 64px 32px;
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #e5eaf0;
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(15, 23, 42, 0.04);
}
.case-detail__header {
  padding-bottom: 28px;
  border-bottom: 1px solid #e8edf2;
  text-align: center;
}
.case-detail__title {
  margin: 0;
  color: #172b46;
  font-size: 30px;
  line-height: 1.5;
  font-weight: 700;
  overflow-wrap: break-word;
}
.case-detail__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px 20px;
  margin-top: 20px;
  font-size: 14px;
}
.case-detail__category {
  padding: 5px 14px;
  border-radius: 4px;
  background: #edf5ff;
  color: var(--kw-blue, #026ce3);
  line-height: 1.6;
}
.case-detail__date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #778496;
  line-height: 1.6;
}
.case-detail__content {
  margin-top: 32px;
  color: #475569;
  font-size: 16px;
  line-height: 1.9;
  overflow-wrap: break-word;
}
.case-detail__content p {
  margin: 0 0 18px;
}
.case-detail__content h1,
.case-detail__content h2,
.case-detail__content h3,
.case-detail__content h4 {
  margin: 28px 0 16px;
  color: #172b46;
  line-height: 1.55;
}
.case-detail__content h1 { font-size: 26px; }
.case-detail__content h2 { font-size: 22px; }
.case-detail__content h3 { font-size: 19px; }
.case-detail__content h4 { font-size: 17px; }
.case-detail__content ul,
.case-detail__content ol {
  margin: 0 0 20px;
  padding-left: 24px;
}
.case-detail__content ul > li { list-style: disc; }
.case-detail__content ol > li { list-style: decimal; }
.case-detail__content li { margin-bottom: 8px; }
.case-detail__content a {
  color: var(--kw-blue, #026ce3);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.case-detail__content img,
.case-detail__content video {
  display: block;
  width: auto;
  max-width: 100% !important;
  height: auto !important;
  margin: 24px auto;
  border-radius: 6px;
}
.case-detail__content iframe { max-width: 100%; }
.case-detail__content table {
  display: block;
  max-width: 100%;
  margin: 24px 0;
  border-collapse: collapse;
  overflow-x: auto;
}
.case-detail__content th,
.case-detail__content td {
  padding: 12px 16px;
  border: 1px solid #e5eaf0;
}
.case-detail__content th { background: #f5f7fa; }
.case-detail__content blockquote {
  margin: 24px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--kw-blue, #026ce3);
  background: #f5f9ff;
}
.case-detail__content pre {
  max-width: 100%;
  overflow-x: auto;
}
/* 示例富文本已有的小节类沿用正文排版，避免正文内重复套卡片。 */
.case-detail__content .anli-case-sec {
  margin: 0 0 32px;
  padding: 0;
  border-radius: 0;
  box-shadow: none;
}
.case-detail__content .anli-case-sec__title {
  display: block;
  margin: 0 0 18px;
  padding: 0 0 0 12px;
  border-bottom: 0;
  border-left: 3px solid var(--kw-blue, #026ce3);
  font-size: 22px;
}
.case-detail__content .anli-case-p {
  color: inherit;
  font-size: inherit;
  line-height: inherit;
}
.case-detail__content > :first-child { margin-top: 0; }
.case-detail__content > :last-child,
.case-detail__content > :last-child > :last-child { margin-bottom: 0; }
.case-detail__footer {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid #e8edf2;
}
.case-detail__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: #f5f7fa;
  border: 1px solid #e5eaf0;
  border-radius: 5px;
  color: #475569;
  font-size: 14px;
  line-height: 1.6;
  transition: color 0.2s, background 0.2s;
}
.case-detail__back:hover {
  background: #edf5ff;
  color: var(--kw-blue, #026ce3);
}
.case-detail__category:focus-visible,
.case-detail__back:focus-visible {
  outline: 2px solid var(--kw-blue, #026ce3);
  outline-offset: 3px;
}
@media (max-width: 1024px) {
  .case-detail { padding: 24px 16px 40px; }
  .case-detail__article { padding: 28px 24px 24px; }
  .case-detail__title { font-size: 24px; }
  .case-detail__header { padding-bottom: 22px; }
  .case-detail__content { margin-top: 24px; }
}
@media (max-width: 600px) {
  .case-detail { padding: 20px 12px 32px; }
  .case-detail__article { padding: 24px 18px 20px; border-radius: 8px; }
  .case-detail__title { font-size: 22px; text-align: left; }
  .case-detail__meta { justify-content: flex-start; gap: 10px 14px; margin-top: 16px; font-size: 13px; }
  .case-detail__content h2,
  .case-detail__content .anli-case-sec__title { font-size: 20px; }
  .case-detail__content img,
  .case-detail__content video { margin: 20px auto; }
  .case-detail__content .anli-case-sec { margin-bottom: 28px; }
  .case-detail__footer { margin-top: 24px; padding-top: 20px; }
}