/* 手机端：小于 768px */
@media screen and (max-width: 767px) {
  .myContent {
    width: 100%;
    margin: 0 auto;
    padding: 0 10px;
  }
}

/* 平板端：768px - 991px */
@media screen and (min-width: 768px) and (max-width: 991px) {
  .myContent {
    width: calc(100% - 0px);
    max-width: 992px;
    margin: 0 auto;
    padding: 0 10px;
  }
}

/* 桌面端：992px - 1399px */
@media screen and (min-width: 992px) and (max-width: 1399px) {
  .myContent {
    width: calc(100% - 200px);
    max-width: 1000px; /* 992px + 两侧留白 */
    margin: 0 auto;
    padding: 0 10px;
  }
}

/* 大桌面端：1400px 及以上 */
@media screen and (min-width: 1400px) {
  .myContent {
    width: 1400px;
    margin: 0 auto;
    padding: 0 10px;
  }
}

/* 992px 以下隐藏侧边栏 */
@media screen and (max-width: 991px) {
  .myCenter_left {
    display: none;
  }
  
  .myCenter_right {
    width: 100% !important;
  }
}