/* AI 日报页面样式 · 沿用《摸鱼热榜-ui-new-Vercel风格设计规范》 */

/* ── 分类点颜色 ── */
[data-category="product"]   { --cat-color: #3b82f6; }
[data-category="research"]  { --cat-color: #8b5cf6; }
[data-category="industry"]  { --cat-color: #10b981; }
[data-category="opensource"]{ --cat-color: #f59e0b; }
[data-category="social"]    { --cat-color: #ec4899; }

/* ── 整体布局 ── */
.an-layout {
  display: flex;
  min-height: calc(100vh - 58px);
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 0;
}

/* ── 左侧侧边栏 ── */
.an-sidebar {
  position: sticky;
  top: 58px;
  width: 232px;
  flex-shrink: 0;
  height: calc(100vh - 58px);
  overflow-y: auto;
  border-right: 1px solid var(--border-light);
  padding: 20px 8px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  background: var(--subtle-background);
}

/* ── 月份节点 ── */
.an-month {
  margin-bottom: 4px;
}

.an-month-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-transform: none;
  text-align: left;
  border-radius: var(--radius-md);
  transition: color 120ms ease, background 120ms ease;
}

.an-month-btn:hover {
  background: var(--muted-background);
}

.an-chevron {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--text-tertiary);
  transition: transform 180ms cubic-bezier(.4,0,.2,1);
}

.an-month[data-open="true"] .an-chevron {
  transform: rotate(90deg);
}

.an-month-count {
  margin-left: auto;
  min-width: 20px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--muted-background);
  border: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}

/* ── 日期列表 ── */
.an-days {
  list-style: none;
  margin: 0;
  padding: 2px 0 8px 4px;
}

.an-day-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 10px 6px 26px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 12.5px;
  text-align: left;
  border-radius: var(--radius-md);
  transition: color 100ms ease, background 100ms ease;
  white-space: nowrap;
  line-height: 1.5;
  position: relative;
}

.an-day-btn::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border);
  transition: background 100ms ease;
}

.an-day-btn:hover {
  color: var(--text-primary);
  background: var(--muted-background);
}

.an-day-btn:hover::before {
  background: var(--text-tertiary);
}

.an-day-btn[data-active="true"] {
  color: var(--text-primary);
  background: var(--accent-subtle);
  font-weight: 600;
}

.an-day-btn[data-active="true"]::before {
  background: var(--accent);
}

/* ── 右侧主内容 ── */
.an-main {
  flex: 1;
  min-width: 0;
  padding: 32px 0 32px 32px;
}

/* ── 顶部标题区 ── */
.an-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.an-date-title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 650;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.an-date-sub {
  margin: 0;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ── 分类分区 ── */
.an-groups {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.an-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0;
  text-transform: none;
}

.an-group-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cat-color, var(--text-tertiary));
  flex-shrink: 0;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cat-color, var(--text-tertiary)) 16%, transparent);
}

/* ── 资讯卡片列表 ── */
.an-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.an-cards li {
  min-width: 0;
}

.an-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface-elevated) 72%, transparent), var(--surface));
  box-shadow: var(--card-shadow);
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.an-card:hover {
  background: var(--muted-background);
  border-color: color-mix(in srgb, var(--text-tertiary) 38%, var(--border));
  transform: translateY(-1px);
}

.an-card-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-elevated);
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.an-card-body {
  min-width: 0;
}

.an-card-title {
  display: inline-flex;
  align-items: flex-start;
  gap: 6px;
  color: var(--text-primary);
  font-size: 14.5px;
  font-weight: 650;
  line-height: 1.45;
  text-decoration: none;
  margin-bottom: 7px;
  transition: color 120ms ease;
}

.an-card-title:hover {
  color: var(--text-secondary);
}

.an-ext-icon {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--text-tertiary);
  opacity: 0;
  transition: opacity 120ms ease;
}

.an-card-title:hover .an-ext-icon {
  opacity: 1;
}

.an-card-summary {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.an-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.an-source-badge {
  display: inline-flex;
  align-items: center;
  height: 20px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--subtle-background);
  font-size: 11px;
  color: var(--text-tertiary);
  white-space: nowrap;
}

/* ── 骨架屏 ── */
.an-skeleton {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.an-skeleton-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.an-skeleton-line {
  border-radius: var(--radius-sm);
  background: var(--muted-background);
  animation: an-pulse 1.6s ease-in-out infinite;
}

.an-skeleton-line--title { height: 16px; width: 70%; }
.an-skeleton-line--body  { height: 13px; width: 100%; }
.an-skeleton-line--meta  { height: 13px; width: 30%; margin-top: 4px; }

@keyframes an-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.45; }
}

/* ── 空状态 ── */
.an-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 64px 24px;
  color: var(--text-tertiary);
}

.an-empty svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.an-empty p {
  margin: 0;
  font-size: 13px;
}

.an-skeleton[hidden],
.an-empty[hidden],
.an-groups[hidden] {
  display: none !important;
}

/* ── 响应式 ── */
@media (max-width: 1024px) {
  .an-sidebar {
    width: 192px;
  }
  .an-main {
    padding-left: 24px;
  }
}

@media (max-width: 768px) {
  .an-layout {
    flex-direction: column;
    padding: 0 16px;
    gap: 0;
  }

  .an-sidebar {
    position: static;
    width: 100%;
    height: auto;
    overflow: visible;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
  }

  .an-sidebar-header {
    padding: 0 0 12px;
    margin-bottom: 4px;
  }

  /* 移动端：横向滚动日期（只显示当前月） */
  .an-tree {
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .an-tree::-webkit-scrollbar {
    display: none;
  }

  .an-month[data-open="false"] {
    display: none;
  }

  .an-month-btn {
    display: none;
  }

  .an-days {
    display: inline-flex;
    flex-direction: row;
    gap: 4px;
    padding: 0;
    white-space: nowrap;
  }

  .an-day-btn {
    display: inline-flex;
    align-items: center;
    width: auto;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-elevated);
    font-size: 12px;
  }

  .an-day-btn[data-active="true"] {
    border-color: var(--accent);
  }

  .an-main {
    padding: 20px 0 24px;
  }

  .an-date-title {
    font-size: 17px;
  }

  .an-groups {
    gap: 24px;
  }

  .an-card {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
  }

  .an-card-rank {
    width: 28px;
    height: 24px;
    font-size: 10px;
  }
}