* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 2. 专门针对p标签：强制覆盖浏览器默认样式（最高优先级） */
p {
  margin-block-start: 0 !important;
  /* 清零顶部默认边距 */
  margin-top: 0 !important;
  /* 兼容旧版浏览器 */

}

/* ========== 以下是你原有大屏样式，完全保留 ========== */
.banner-title {
  position: absolute;
  top: 86%;
  left: 7.2%;
  transform: translate(10%, -50%);
  z-index: 10;
  color: white;
  font-family: "Source Han Serif SC", "Source_Han_Serif_SC", "Segoe UI", "Helvetica Neue", sans-serif;
  font-size: 3.8rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: 2px;
  font-family: "Source Han Serif SC", "Microsoft Yahei", "PingFang SC", sans-serif;
  letter-spacing: 4px;
}

.core-content {
  padding-left: 20%;
  padding-right: 20%;
  width: 100%;
  padding-top: 100px;
  padding-bottom: 50px;
}

@media (max-width: 1023px) {

  /* Banner标题适配 */
  .banner-title {
    top: 80%;
    left: 5%;
    transform: translateY(-50%);
    font-size: 2rem;
    letter-spacing: 2px;
    line-height: 1.2;
  }

  .core-content {
  padding-left: 6%;
  padding-right: 6%;
  width: 100%;
  padding-top: 10px;
  padding-bottom: 5px;
}
}