.para{text-indent:0;} .fw{font-size:1.8em;float:left;margin-left:2rem}



.xu{text-align:right;}

.xu1{width:50%;}
.dis{display:none}

.ft{display:inline-block;font-size:1rem;font-weight:normal;border:1px solid #000;border-top:none;border-bottom:none;line-height:1rem;margin:0;padding:0 .2em;float:left}
.st{color:#9FA0A0;font-size:2rem;}









div.tupian3 {
	width: 30%;
	margin: 1em auto 1em auto;
	text-align: center;
}
div.tupian6 {
	width: 60%;
	margin: 1em auto 1em auto;
	text-align: center;
}



/* TOC Title */
/* 目录标题 */
.sgc-toc-title {
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 1em;
	letter-spacing: 1em;
    text-align: center;
	border-bottom: 1.5px dotted;
}





/* Level 1 TOC */
/* 一级标题 */
.sgc-toc-level-1 {
    margin-left: 0em;
}

/* Level 2 TOC */
/* 二级标题 */
.sgc-toc-level-2 {
    margin-left: 2em;
}

/* Level 3 TOC */
/* 三级标题 */
.sgc-toc-level-3 {
    margin-left: 4em;
}

/* Level 4 TOC */
/* 四级标题 */
.sgc-toc-level-4 {
    margin-left: 4em;
}

/* Level 5 TOC */
/* 五级标题 */
.sgc-toc-level-5 {
    margin-left: 4em;
}

/* Level 6 TOC */
/* 六级标题 */
.sgc-toc-level-6 {
    margin-left: 4em;
}

div.tupian {
	width: 80%;
	margin: 1em auto 1em auto;
	text-align: center;
}

div.tupiang {
	width: 100%;
	margin: 0;
	text-align: center;
}
div.tupians{
	width: 30%;
	margin: 0 auto;	
	text-align:center;
}







div.tupian-right {
	text-align: right;
	margin:0.6em 0em 0.6em auto;
	width:20%;
}






.banquanxinxi {
	font-weight: bold;
}






.bodycontent-text-tushuo {
	font-size:0.8em; 
	text-align: center;
	margin-top: 0.2em;
}


div.logo {
	margin: auto;
	text-align: center;
}

/*序*/
.preface {
	 
	font-size: 1.5em;
	margin-bottom: 2.5em;
	margin-top: 0.5em;
	text-align: right;
}


.bodycontent-text1 {
	text-indent: 2em;
}
.bodycontent-first-title-x {
	font-size:1.0em;
	margin-bottom: 2.5em;
	margin-bottom: 20%;
	margin-top:4%;
	text-align: right;
}

/*1级标题 居右*/
.bodycontent-first-title {
margin:o;padding:o;	
	font-size: 1.5em;
font-weight:bold;
margin-left:20%;
border-left:1px solid #000;
padding-left:.5rem;

	
}





/*前言一级标题*/
.bodycontent-first-title_qianyan {
	font-size: 1.5em;
	margin-bottom: 1.5em;
	margin-top: 0.5em;
	text-align: right;
	margin-right: 0.5em;
	margin-left: auto;
}


.bodycontent-second-titlexu {
	font-size: 1.3em;
	margin-bottom: 0.8em;
	margin-top: 1.5em;
	text-align: center;
}





.bodycontent-second-title {
	font-size: 1.3em;
	margin-bottom: 25%;
	margin-top: 1.5em;
	text-align: left;

}


.bodycontent-third-title {
	font-size: 1.1em;
	margin-bottom: 0.7em;
	margin-top: 1em;
	text-align: center;
	text-indent: 0em;
	font-weight:normal;
	
}





h4,h5,h6
{
	text-align:left;
	font-size:1.1em;
	margin: 1.0em 0em;
}

.bodycontent-text-bold {
	text-indent: 0em;
	font-size: 1.1em;
	margin-bottom: 0.7em;
	margin-top: 1.5em;
	font-weight: bold;
}

/* 版权信息页标题 */
/* Copyright page title */
.kindle-cn-copyright-title {
	page-break-before: avoid;
	font-size: 1.1em;
	margin: 0.2em auto; 
	text-align: left; 
	text-indent: 0em;
}

/* 版权信息页正文 */
/* Copyright page text */
.kindle-cn-copyright-text {
	line-height: 1.5;
	text-indent: 0em;
}

/* 版权信息页正文1 */
/* Copyright page text1 */
.kindle-cn-copyright-text1 {
	line-height: 1.5;
	text-indent: 0em;
}

.kindle-cn-copyright-text-center {
	line-height: 1.5;
	text-align: center;
}







div.logo {
	margin: 40% auto auto;
	text-align: center;
	width: 80%;
}

img.logo {
	width: 30%;
}

div.logo-1 {
	margin: auto;
	text-align: center;
}

img.logo-1 {
	height: 2em;
}


/* Quote */
/* 引用框 */
blockquote.kindle-cn-blockquote {
  background: #f9f9f9;
  border-left: 0.5em solid #ccc;
  margin: 1.5em;
  padding: 0.5em;
  text-indent:2em;
}

/* 注释 */
.zhusi {
	line-height: 1.5;
	text-indent: 0em;
	font-size: 0.8em;
}



.bodycontent-text_yinwen {
	line-height: 1.5;
	text-indent: 2em;
	font-size: 1em;
}


.bodycontent-text_yinwen_kai {
	line-height: 1.5;
	font-size: 1em;
	text-indent: 2em;
}

















/* 数学上标字体 */  
.math-super {
    font-size: 0.7em;  
    vertical-align: super;  
}  
/* 数学上标倾斜字体 */  
.math-super-italic {
    font-size: 0.7em;  
    font-style: italic;  
    vertical-align: super;  
}   
/* 数学下标字体 */  
.math-sub {
    font-size: 0.7em;  
    vertical-align: sub;  
}  


/* 全屏图样式 */
.athena_imgwrap_fullscreen
{
  display:block;
  margin:0em;
  padding:0em;
  width: 100%;
}



















/*一级标题 居中*/
.bodycontent-first-title-z {
	font-size: 1.5em;
	margin-bottom: 2.5em;
	margin-top: 0.5em;
	text-align: center;
}
.bodycontent-third-title-z {
	font-size: 1.5em;
	margin-bottom: 2.5em;
	margin-top: 0.5em;
	text-align: center;
}


.bodycontent-text_center {
	text-align: center;
	font-weight: bold;
	font-size: 1.2em;
}
.bodycontent-text {
	text-indent: 2em;
}
.yuedu1 {
	color: #ffffff;
	background-color: #9fa0a0;
	padding: 0.2em;
}
.bodycontent-text_d {
	text-indent: 0em;
}
.bodycontent-text_right {
	text-align: right;
}
.bodycontent-text_noindent {
	line-height: 1.5;
	text-indent: 0em;
	font-size: 1em;
}
/* 造字 */
img.paralog {
	height: 1.1em;
	vertical-align: -0.2em;
	margin: 0em 0.1em;
}
div.tupian-6 {
	width: 60%;
	margin: 1em auto 1em auto;
	text-align: center;
}
img.image-alone {
	width: 100%;
	margin-bottom: 0.2em;
}
img.image-alone1 {
	width: 100%;
	margin-bottom: 0.2em;
}
/* 插图右浮动 */
div.tupian-float-right
{
	float:right;
  margin:0.6em 0em 0.6em 1.17em;
  width:40%;
}
div.tupian-float-right-c
{
	float:right;
  margin:0.6em 0em 0.6em 1.17em;
  width:20%;
}

.yuedu2 {
	border-top: 1px dashed #9fa0a0;
	border-right: 1px dashed #9fa0a0;
	border-bottom: 1px dashed #9fa0a0;
	padding: 0.2em;
}
/* 插图左浮动 */
div.tupian-float-left
{
	float:left;
  margin:0.6em 1.17em 0.6em 0em;
  width:40%;
}
.bold{font-weight:bold;}
.text-i{font-style:italic;}