/* =====================================================
   ContactX · Articles List Page Styles
   ===================================================== */

.main {
  padding-top: var(--nav-height);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.page-head {
  padding: 56px 0 36px;
  border-bottom: 1px solid var(--border);
}

.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.025em;
  font-weight: 600;
}

/* ---------- 布局 ---------- */
.layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  padding: 48px 0 16px;
}

.articles-main {
  min-width: 0;
}

/* ---------- 文章网格 ---------- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.article-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px -20px rgba(20,30,60,.25);
}

.article-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
  margin-bottom: 10px;
  color: var(--fg);
}

.article-excerpt {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 16px;

  /* 多行文本截断 - 最多显示3行 */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  font-size: 14px;
  font-family: var(--font-mono);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
}

.pagination a:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

.pagination .active {
  background: var(--fg);
  color: var(--surface);
  border-color: var(--fg);
}

.pagination .disabled {
  opacity: .4;
  pointer-events: none;
}

/* ---------- 侧边栏 ---------- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.side-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

/* ---------- 分类列表 ---------- */
.category-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.category-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--fg);
  border-radius: 8px;
  transition: background var(--transition-fast);
  text-decoration: none;
}

.category-link:hover {
  background: var(--surface-2);
}

.category-link.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 510;
}

.category-link span:last-child {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.category-link.active span:last-child {
  color: var(--accent);
}

/* ---------- 空状态 ---------- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--muted);
  font-size: 16px;
  grid-column: 1 / -1;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .sidebar {
    order: -1;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .side-card {
    flex: 1 1 260px;
  }
}

@media (max-width: 560px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: column;
  }

  .side-card {
    flex: 1 1 100%;
  }
}