/* ==========================================================================
   新闻动态 | news.html / news-detail.html  (.nl-* / .nd-*)
   ========================================================================== */

/* ---------- 侧栏简易导航 ---------- */
.page-side-nav {
  list-style: none;
  margin: 0;
  padding: 6px 0;
}

.page-side-nav li {
  border-bottom: 1px solid var(--color-border-light);
}

.page-side-nav li:last-child {
  border-bottom: none;
}

.page-side-nav a {
  display: block;
  padding: 12px 18px;
  font-size: 0.875rem;
  color: var(--color-text-regular);
  transition: color var(--transition), background var(--transition);
}

.page-side-nav a:hover {
  color: var(--color-primary);
  background: var(--color-primary-lighter);
}

.page-side-nav a.is-active {
  color: var(--color-primary);
  font-weight: 600;
  background: var(--color-primary-lighter);
}

/* ---------- 新闻列表 ---------- */
.nl-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nl-item {
  border-bottom: 1px dashed var(--color-border);
}

.nl-item:last-child {
  border-bottom: none;
}

.nl-item__link {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 4px;
  color: inherit;
  transition: background var(--transition);
}

.nl-item__link:hover {
  background: var(--color-primary-lighter);
}

.nl-item__thumb {
  flex-shrink: 0;
  width: 160px;
  height: 100px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border-light);
}

.nl-item__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.nl-item__link:hover .nl-item__thumb img {
  transform: scale(1.04);
}

.nl-item__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  background: linear-gradient(145deg, #eef1f5 0%, #e2e6eb 100%);
}

.nl-item__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nl-item__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.nl-item__link:hover .nl-item__title {
  color: var(--color-primary);
}

.nl-item__date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ---------- 文章详情 ---------- */
.nd-article {
  padding: 8px 8px 0;
}

.nd-title {
  margin: 0 0 16px;
  text-align: center;
  font-size: clamp(1.25rem, 2.2vw, 1.5rem);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.nd-meta {
  margin: 0 0 28px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border-light);
}

.nd-body {
  font-size: 0.9375rem;
  color: var(--color-text-regular);
  line-height: 1.9;
}

.nd-body p {
  margin: 0 0 1.1em;
  text-indent: 2em;
}

.nd-body p:last-of-type {
  margin-bottom: 0;
}

.nd-sign {
  margin: 28px 0 0;
  text-align: right;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.nd-sign strong {
  display: block;
  font-weight: 600;
  color: var(--color-text-regular);
}

.nd-attach {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--color-border);
}

.nd-attach a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.nd-attach a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.nd-pager {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border-light);
}

.nd-pager a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.nd-pager a:hover {
  color: var(--color-primary);
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .nl-item__link {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 16px 0;
  }

  .nl-item__thumb {
    width: 100%;
    height: 160px;
  }

  .nd-article {
    padding: 0;
  }

  .nd-body p {
    text-indent: 0;
  }

  .nd-meta {
    margin-bottom: 20px;
    padding-bottom: 14px;
  }
}

@media (max-width: 480px) {
  .nl-item__thumb {
    height: 140px;
  }

  .nl-item__title {
    font-size: 0.9375rem;
  }
}