.as-row-flex {
  display: flex;
  gap: 0.24rem;
}
.as-flex-1 { flex: 1; }
.as-flex-2 { flex: 2; }
.as-mt-base { margin-top: 0.24rem; }
.as-mt-lg { margin-top: 0.36rem; }
.as-mb-sm { margin-bottom: 0.12rem; }
.as-mb-base { margin-bottom: 0.2rem; }
.as-text-center { text-align: center; }

/* 文字层级 rem标准字号 */
.as-title-main {
  font-size: 0.34rem;
  font-weight: 700;
  line-height: 1.3;
  margin: 1.32rem 0 0.32rem;
  color: #222;
}
.as-title-block {
  font-size: 0.18rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.14rem;
}
.as-text-body {
  font-size: 0.14rem;
  line-height: 1.65;
}
.as-text-small {
  font-size: 0.12rem;
  line-height: 1.55;
  color: #555;
}
.as-text-mini {
  font-size: 0.09rem;
  color: #777;
}
.as-text-orange { color: #ff7800; }
.as-text-white { color: #fff; }

/* 色块容器 */
.as-block-orange {
  background-color: #ff7800;
  padding: 0.26rem;
  border-radius: 0.04rem;
}
.as-block-gray {
  background-color: #eee;
  padding: 0.26rem;
  border-radius: 0.04rem;
}

/* 图片占位通用（图表/流程/下载封面共用） */
.as-img-placeholder {
  width: 100%;
  background: #fff;
  border: 1px dashed #ddd;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 0.12rem;
  overflow: hidden;
  /* 全局过渡动画 */
  transition: all 0.24s ease-in-out;
}
.as-img-placeholder img {
  width: 100%;
  height: auto;
  display: block;
}
/* 图片hover上浮动画 */
.as-img-placeholder:hover {
  transform: translateY(-0.04rem);
  box-shadow: 0 0.06rem 0.16rem rgba(0,0,0,0.08);
  border-color: #ff7800;
}

/* ====================== 下载区域优化：图片+标题+按钮三层结构 ====================== */
.as-download-wrap {
  background-color: #ff7800;
  padding: 0.3rem 0.26rem;
  border-radius: 0.04rem;
}
.as-download-list {
  display: flex;
  gap: 0.2rem;
  align-items: stretch;
}
.as-download-cell {
  flex: 1;
  background: #fff;
  border-radius: 0.04rem;
  padding: 0.16rem;
  display: flex;
  flex-direction: column;
  gap: 0.14rem;
  /* 卡片hover动画 */
  transition: all 0.24s ease;
}
.as-download-cell:hover {
  transform: translateY(-0.06rem);
  box-shadow: 0 0.08rem 0.2rem rgba(0,0,0,0.12);
}
/* 下载单元封面图固定高度，比例统一 */
.as-download-cell-img {
  width: 100%;
  height: 1.2rem;
}
.as-download-cell-title {
  font-size: 0.14rem;
  font-weight: 600;
  flex-grow: 1;
}
.as-download-btn {
  width: 100%;
  height: 0.36rem;
  background: #ff7800;
  color: #fff;
  border: none;
  border-radius: 0.03rem;
  font-size: 0.14rem;
  cursor: pointer;
  /* 按钮动画 */
  transition: all 0.2s ease;
}
.as-download-btn:hover {
  background: #e66b00;
  letter-spacing: 0.02rem;
}
.as-download-btn:active {
  transform: scale(0.97);
}

/* ====================== 相关文章资讯模块 ====================== */
.as-article-title {
  font-size: 0.3rem;
  font-weight: 700;
  margin: 0.36rem 0 0.24rem;
}
.as-article-wrap {
  display: flex;
  gap: 0.2rem;
  padding-bottom: 1rem;
}
.as-article-card {
  flex: 1;
  background: #f5f5f5;
  padding: 0.2rem;
  border-radius: 0.04rem;
  transition: all 0.24s ease;
}
.as-article-card:hover {
  transform: translateY(-0.04rem);
  box-shadow: 0 0.06rem 0.16rem rgba(0,0,0,0.06);
}
.as-article-card h4 {
  margin: 0 0 0.1rem;
  font-size: 0.16rem;
}
.as-article-card h4 a {
  color: #222;
  text-decoration: none;
  transition: color 0.2s ease;
}
.as-article-card h4 a:hover {
  color: #ff7800;
  text-decoration: underline;
}
.as-article-meta {
  display: flex;
  gap: 0.16rem;
  margin-bottom: 0.1rem;
  color: #777;
  font-size: 0.1rem;
}
.as-article-desc {
  font-size: 0.12rem;
  line-height: 1.55;
  color: #444;
}

/* ====================== 移动端响应式重排 ====================== */
@media screen and (max-width: 980px) {
  .as-row-flex {
    flex-direction: column;
    gap: 0.2rem !important;
  }
  .as-download-list {
    flex-direction: column;
  }
  .as-article-wrap {
    flex-direction: column;
  }
}