:root {
  /* 基础字体大小，用于标准分辨率 */
  --base-font-size: 16px;
  /* 分辨率调整因子 */
  --resolution-factor: 1;
  /* 宽度调整因子 */
  --width-factor: 1;
}
/* 分辨率调整 */
@media screen and (min-resolution: 120dpi) and (max-resolution: 140dpi) {
  :root {
    --resolution-factor: 0.8125;
    /* 13/16 */
  }
}
@media screen and (min-resolution: 140dpi) and (max-resolution: 160dpi) {
  :root {
    --resolution-factor: 0.625;
    /* 10/16 */
  }
}
/* 宽度调整 */
@media screen and (min-width: 1280px) and (max-width: 1440px) {
  :root {
    --width-factor: 0.875;
    /* 14/16 */
  }
}
@media screen and (min-width: 1440px) and (max-width: 1680px) {
  :root {
    --width-factor: 0.9375;
    /* 15/16 */
  }
}
@media screen and (min-width: 1680px) and (max-width: 2560px) {
  :root {
    --width-factor: 1;
    /* 16/16 */
  }
}
@media screen and (min-width: 2560px) {
  :root {
    --width-factor: 1.375;
    /* 18/16 */
  }
}
/* ========== 新增：3440*1440 带鱼屏，Windows 125%缩放 ==========
物理分辨率3440*1440，系统125%缩放后，浏览器css视口宽度 = 3440 / 1.25 = 2752px
*/
@media screen and (min-width: 2752px) {
  :root {
    --width-factor: 1.5;
  }
  /* 带鱼屏banner适配，宽屏不要拉太高 */
  .n_banner {
    height: 60vh;
  }
  .n_banner .text .w80 .left h1 {
    font-size: 4rem;
  }
  .n_banner .text .w80 .left h2 {
    font-size: 8rem;
  }
}
/* 最终计算字体大小（分辨率优先） */
:root {
  font-size: calc(var(--base-font-size) * var(--resolution-factor) * var(--width-factor));
}
table,
table tr td {
  border: 1px solid #e5e5e5;
  text-align: center;
  font-size: 0.9375rem;
  word-wrap: break-word;
  table-layout: fixed;
}
table {
  width: 100%;
  min-height: 2.5rem;
  line-height: 2.5rem;
  text-align: center;
  border-collapse: collapse;
  padding: 2px;
}
.iconfont {
  font-family: "iconfont" !important;
  font-size: 1rem;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -webkit-text-stroke-width: 0.2px;
  -moz-osx-font-smoothing: grayscale;
}
* {
  margin: 0;
  padding: 0;
}
body,
div,
span,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
blockquote,
td,
tr,
th,
p {
  padding: 0;
  margin: 0;
}
li,
dd,
ol,
ul {
  list-style-type: none;
}
a {
  text-decoration: none;
  cursor: pointer;
}
img {
  border: none;
  outline: medium none;
}
img a {
  border: none;
}
input,
select,
button {
  outline: medium none;
  border: none;
  padding: 0;
  margin: 0;
  font-family: "Microsoft YaHei", Helvetica, sans-serif, "宋体";
}
textarea {
  outline: medium none;
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  resize: none;
  font-family: "Microsoft YaHei", Helvetica, sans-serif, "宋体";
}
i {
  font-style: normal;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
}
ul li img {
  display: block;
  cursor: pointer;
}
:focus {
  outline: none;
}
a:hover {
  background: none;
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
  -webkit-user-select: none;
  -moz-user-select: none;
}
input[type="button"],
input[type="submit"],
input[type="reset"],
button {
  -webkit-appearance: none;
}
textarea {
  -webkit-appearance: none;
}
em {
  font-style: normal;
}
.clear {
  clear: both;
}
.mr {
  margin-right: 0 !important;
}
.fl {
  float: left;
}
.fr {
  float: right;
}