/* 帮助文章页 + 首页广告位 */

.article-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.article-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.article-back {
  color: var(--primary);
  text-decoration: none;
  font-size: 14px;
}

.article-back:hover {
  text-decoration: underline;
}

.article-topbar-title {
  font-size: 14px;
  color: var(--text-muted);
}

.article-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 24px 24px;
  width: 100%;
}

.article-body h1 {
  font-size: 28px;
  line-height: 1.35;
  margin-bottom: 12px;
}

.article-body h2 {
  font-size: 20px;
  margin: 28px 0 12px;
  color: var(--text);
}

.article-body h3 {
  font-size: 17px;
  margin: 20px 0 10px;
}

.article-body p,
.article-body li {
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 12px;
}

.article-body ul,
.article-body ol {
  padding-left: 1.4em;
  margin-bottom: 16px;
}

.article-body a {
  color: var(--primary);
}

.article-lead {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.article-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.article-card {
  display: block;
  padding: 20px 22px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.article-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.article-card h2 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}

.article-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

.article-footer {
  margin-top: auto;
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--panel-border);
  background: var(--panel);
}

.article-footer a {
  color: var(--primary);
  text-decoration: none;
}

.article-promo {
  padding-top: 0;
  padding-bottom: 40px;
}

.article-promo-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* 首页 + 文章页共用广告卡片样式（布局 display 由 style.css 控制，避免覆盖移动端隐藏规则） */
.promo-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.promo-card {
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 1px solid transparent;
}

.promo-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.promo-jiazheng {
  background: linear-gradient(135deg, #fff7ed, #ffedd5);
  color: #c2410c;
  border-color: #fed7aa;
}

.promo-hunlian {
  background: linear-gradient(135deg, #fdf2f8, #fce7f3);
  color: #be185d;
  border-color: #fbcfe8;
}

.nav-help {
  display: block;
  margin-top: 8px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px dashed var(--panel-border);
  text-align: center;
}

.nav-help:hover {
  background: rgba(79, 142, 247, 0.08);
  color: var(--primary);
  border-color: var(--primary);
}

.sidebar-promo .promo-card {
  min-width: 0;
  font-size: 12px;
  padding: 10px 12px;
}

@media (max-width: 960px) {
  .article-body h1 {
    font-size: 22px;
  }
}