/* T2 广告位样式 - 变现模块
   独立文件，避免污染主样式表 style.css */

.ad-slot {
  position: relative;
  margin: 20px 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--card-solid);
  border: 1px solid var(--line);
  box-shadow: 0 4px 16px rgba(31, 52, 115, .06);
}

/* 「广告」披露标记：付费合作必须可辨识 */
.ad-slot__badge {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 2;
  font-size: 11px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 6px;
  color: var(--muted);
  background: rgba(255, 255, 255, .88);
  border: 1px solid var(--line);
}

.ad-slot__card {
  display: block;
  text-decoration: none;
  transition: var(--transition);
}

.ad-slot__card:hover {
  opacity: .92;
}

.ad-slot__card img {
  display: block;
  width: 100%;
  height: auto;
}

.ad-card__text {
  display: block;
  padding: 18px 16px;
  text-align: center;
  font-weight: 700;
  color: var(--primary);
}

/* 各位置差异化 */
.ad-slot--home_top {
  margin-top: 24px;
}

.ad-slot--footer {
  max-width: 728px;
  margin: 18px auto 0;
}

.ad-slot--article_inline {
  margin: 26px 0;
}

.ad-slot--site_detail_side,
.ad-slot--sidebar {
  margin: 0 0 16px;
}

/* 空闲广告位自动回填「招租」：把闲置库存变成招商漏斗入口 */
.ad-slot--rent {
  border-style: dashed !important;
  background: linear-gradient(135deg, rgba(56, 103, 255, .04), rgba(56, 103, 255, .01));
}

.ad-slot--rent .ad-slot__card {
  padding: 22px 18px;
  text-align: center;
}

.ad-slot--rent .rent-title {
  display: block;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.ad-slot--rent .rent-desc {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

/* 页脚邮件订阅条 */
.subscribe-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(56, 103, 255, .05), transparent);
}

.subscribe-bar__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.subscribe-bar__text strong {
  font-size: 15px;
}

.subscribe-bar__text span {
  font-size: 13px;
  color: var(--muted);
}

.subscribe-bar__form {
  display: flex;
  gap: 8px;
}

.subscribe-bar__form input[type="email"] {
  width: 230px;
  max-width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
}

@media (max-width: 768px) {
  .ad-slot {
    margin: 14px 0;
  }

  .subscribe-bar {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .subscribe-bar__form {
    flex-direction: column;
  }
}