.bodycontent-first-title {
  background: #f9f9f9;
  display: block;
  font-size: 1.41667em;
  font-weight: bold;
  line-height: 1.2;
  text-align: center;
  text-indent: 0;
  margin: 0.5em auto 2.5em;
  padding: 0.5em;
}
.bodycontent-second-title {
  display: block;
  font-size: 1.41667em;
  font-weight: bold;
  line-height: 1.2;
  text-align: center;
  margin: 1.5em 0 0.8em;
}
.bodycontent-text {
  display: block;
  text-align: justify;
  text-indent: 2em;
  padding: 0;
  margin: 0 0;
}
.bodycontent-text_center {
  display: block;
  font-size: 1em;
  font-weight: bold;
  text-align: center;
  margin: 1em 0;
}
.bodycontent-text_right {
  display: block;
  font-size: 1em;
  text-align: right;
  margin: 1em 0;
}
.bodycontent-text_yinwen {
  display: block;
  font-size: 1em;
  text-indent: 2em;
  margin: 1em 0;
}
.bodycontent-text-bold {
  display: block;
  margin: 1em 0;
}
.bodycontent-third-title {
  display: block;
  font-size: 1.125em;
  font-weight: bold;
  margin: 1em 0 0.7em;
}
.bodycontent-third-title1 {
  display: block;
  font-size: 1.125em;
  font-weight: bold;
  margin: 1em 0;
}
.h {
  display: block;
  font-size: 1em;
  font-weight: bold;
  text-align: left;
  text-indent: 2em;
  margin: 1em 0;
}
.kindle-cn-copyright-text {
  display: block;
  line-height: 1.5;
  text-indent: 0;
  margin: 1em 0;
}
.math-super {
  font-size: 0.75em;
  vertical-align: super;
}
.math-super1 {
  font-size: 0.66667em;
  vertical-align: super;
}
.math-super2 {
  font-size: 0.70588em;
  vertical-align: super;
}
.sgc-toc-level {
  display: block;
  margin-left: 0;
}
.sgc-toc-level1 {
  display: block;
  margin-left: 2em;
}
.sgc-toc-level2 {
  display: block;
}
.sgc-toc-title {
  display: block;
  font-size: 2em;
  font-weight: bold;
  letter-spacing: 1em;
  line-height: 1.2;
  margin-bottom: 1em;
  text-align: center;
  border-bottom: #000 dotted 1.5px;
}
.sigil_not_in_toc {
  display: block;
  font-family: STSong, "Song S", Song;
  font-weight: bold;
  text-align: justify;
  margin: 1.33em 0;
}
.sigil_not_in_toc1 {
  display: block;
  font-family: STSong, "Song S", Song;
  font-weight: normal;
  text-align: justify;
  margin: 1.33em 0;
}
.tupian {
  display: block;
  text-align: center;
  width: 100%;
  margin: 1.6em auto;
}
.zhusi {
  display: block;
  font-size: 0.75em;
  line-height: 1.618;
  text-indent: 0;
  margin: 1em 0;
}
body {
color:#1F2937;
background-color: #FAFAF8;}
a {color:#2563EB;text-decoration: underline;}/*#1A0DAB;*/
a:visited {color:#4B6CB7}
a:hover, a:focus {color:#1E40AF;}/*#2563EB;#6B7280*/
@media (prefers-color-scheme: dark) {
  body {
    background-color: #1e1e1e;
    color: #e0e0e0;
}
a {
  color: #64ABD5;
  text-decoration: underline;
}

a:visited {
  color:  #8597AE
}

a:hover, a:focus {
  color: #a3d4ff;
  text-decoration: underline;
}

a:active {
  color:  #ff6b6b; 
}
h1,h2,h3,h4,h5,h6,b {
 color:  #F0F0F0;
}
a b,b a {
 color:   #64ABD5;
  text-decoration: underline;
}
a:visited  b,b a:visited{
  color:  #8597AE
}

a:hover b, a:focus b ,b a:focus, b a:hover{
  color: #a3d4ff;
}

a:active b,b a:active {
  color:  #ff6b6b; 
}

}