@import url('https://fonts.googleapis.com/css?family=Roboto:900');

/***************************/
/*
/* reset css
/*
/***************************/

html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, a, blockquote, pre, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, i, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table,   caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary, time, mark, audio, video {
  border: 0;
  margin: 0;
  outline: 0;
  padding: 0;
  font-size: 100%;
  list-style: none;
  background: transparent;
  font-family:
    -apple-system, /* OS X, ios san francisco */
    BllinkMacSyatemFont, /* OS X, ios Chrome San francisco */
    "hiragino Kaku Gothic ProN", /* OS X, ios ヒラギノ */
    MyYuGothicM, /* Windows 游ゴシック */
    Meiryo, /* Windows メイリオ */
    sans-serif;
  font-weight: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  vertical-align: baseline;
}

/***************************/
/*
/* my useful tips
/*
/***************************/

.text-center {
  text-align: center;
}

.cf:before, .cf:after {
  content: " ";
  display: table;
}

.cf:after {
  clear: both;
}

main {
  display: block;
  overflow: hidden;
}

/***************************/
/*
/* SNS
/*
/***************************/

/*social plugins*/
.fb-like,
.hatena-bookmark-button-frame,
.twitter-tweet-button,
.line img {
  display: inline;
  vertical-align: bottom;
}

.fa-hatena:before {
  content: "B!";
  font-family: Verdana;
  font-weight: bold;
}

.social-icon {
  padding: 20px auto 0;
}

#social-icon,
#social-icon-footer {
  height: 40px;
  max-width: 580px;
  margin: 30px auto 0;
  text-align: center;
  width: 100%;
}

#social-icon-footer {
  margin: 20px auto;
}

#social-icon a,
#social-icon-footer a {
  color: #fff;
  background: #666;
  border-radius: 5px;
  display: block;
  float: left;
  margin: 0 10px 10px 0;
  max-width: 130px;
  text-decoration: none;
  text-align:center;
  line-height: 40px;
  padding: 0;
  position: relative;
  overflow: hidden;
  width : calc(100% / 4);
}

#social-icon i,
#social-icon-footer i {
  background: #bcaf68;
  height: 40px;
  left: 0;
  line-height: 40px;
  margin: 0;
  max-width: 150px;
  top: 0;
  text-align: center;
  transition: .2s;
  position: absolute;
  width: 100%;
}

#social-icon i:before,
#social-icon-footer i:before { line-height: 40px; }
#social-icon a:hover i,
#social-icon-footer a:hover i { top: 100%; }
#social-icon i:before,
#social-icon-footer i:before { }
#social-icon .fa-comment,
#social-icon-footer .fa-comment { background: #00C300; }
#social-icon .fa-facebook,
#social-icon-footer .fa-facebook { background: #3b5998; }
#social-icon .fa-hatena,
#social-icon-footer .fa-hatena { background: #1b69c7; }
#social-icon .fa-google-plus,
#social-icon-footer .fa-google-plus { background: #dd4b39; }
#social-icon .fa-twitter,
#social-icon-footer .fa-twitter { background: #00a1e9; }

/***************************/
/*
/* page settings
/*
/***************************/

body {
  font-size: 1em;
  letter-spacing: .03em;
  line-height: 1.6em;
  margin: 0;
}

a {
  color: #333;
  font-size: 1em;
  letter-spacing: .03em;
  line-height: 1.6em;
  text-decoration: none;
}

a:active {
  color: #8cd9ec;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.btn {
  color: #fff;
  display: inline-block;
  font-size: 1.1em;
  padding: .6em 3em;
  text-align: center;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn:active {
  color: #333;
  position: relative;
  top: 1px;
}

.btn:hover {
  border: none;
  color: #333;
  text-decoration: none;
  opacity: .6;
}

.btn-default {
  background-color: #d0111b;
  margin-top: 10px;
}

.comingsoon {
  color: #666;
  text-align: center;
  font-size: 20px;
  font-weight: bold;
  padding: 80px 60px;
}

.dash {
  letter-spacing: -.2em;
  padding-right: 5px;
}

.hover:hover {
  opacity: .6;
}

.frame-wrapper {
  margin: 40px 0;
}

.inner-wrapper {
  border-radius: 30px;
  box-sizing: border-box;
  margin: 0 auto 0;
  max-width: 850px;
  overflow: hidden;
  padding: 0 30px;
  width: 100%;
}

.small {
  font-size: 80%;
}

.section-title {
  color:#FFF;
  background: url("../images/bg-water.png") repeat #00a1e5;
  border: dashed 2px #FFF;
  box-shadow: 0 0 0 4px #00a1e5;
  font-size: 30px;
  font-family: 'Roboto', sans-serif;
  padding: .5em .4em .4em;
}

.section-title-w {
  color:#00a1e5;
  background: #fff;
  border: dashed 2px #00a1e5;
  box-shadow: 0 0 0 4px #fff;
  font-size: 30px;
  font-family: 'Roboto', sans-serif;
  padding: .5em .4em .4em;
}

.title-decoration {
  border-bottom: dotted 3px #00a1e5;
  color: #00a1e5;
  font-size: 18px;
  font-weight: bold;
}

.title-decoration-w {
  border-bottom: dotted 3px #fff;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  text-align: left;
  padding-left: 5px;
}

.section-title img {
  max-width: 500px;
}

.section-title span,
.section-title-w span {
  font-size: 14px;
}

.strong {
  font-weight: bold;
  text-decoration: none;
}

.slim-display {
  display: none;
}

.pict {
  float: right;
  padding: 2%;
}

.pict:hover {
  opacity: .8;
}

.wide-display {
  display: block;
}

/***************************/
/*
/* site header
/*
/***************************/

.site-menu {
  background: #fff;
  border-bottom: 1px solid #00a1e5;
  position: fixed;
  width: 100%;
  z-index: 10;
}

.site-menu .amazon {
  background: #fff;
}

.site-menu .amazon a {
  color: #fff;
}

.site-menu .amazon a:hover {
  background: #333;
  color: #fff;
}

.site-menu li {
  display: inline-block;
  font-family: "Sawarabi Mincho";
  text-align: center;
  position: relative;
}

.site-menu li a,
.site-menu li a:hover,
.site-menu li a:active {
  color: #00a1e5;
  background: none;
  border: none;
  display: inline-block;
  font-weight: bold;
  font-size: 18px;
  letter-spacing: 0.1em;
  line-height: 22px;
  text-decoration: none;
  padding: 15px 25px;
}

.site-menu li a:hover {
  color: #000;
  transition: all 0.6s ease;
}

.site-menu li:hover .underline {
  opacity: 1;
}

.site-menu ul {
  float: right;
  margin: 0;
}

.site-menu .menu-subtitle {
  color: #eee;
  display: block;
  font-size: 11px;
}

/***************************/
/*
/* menu-animation
/*
/***************************/

.menu-animation {
  font-family: 'Raleway', Arial, sans-serif;
  font-weight: 500;
  text-align: center;
  text-transform: uppercase;
}

.menu-animation * {
  box-sizing: border-box;
}

.menu-animation li {
  display: inline-block;
  list-style: outside none none;
  margin: 0 1.5em;
  padding: 0;
}

.menu-animation a {
  color: rgba(255, 255, 255, 0.5);
  padding: 0.5em 0;
  position: relative;
  letter-spacing: 1px;
  text-decoration: none;
}

.menu-animation a:before,
.menu-animation a:after {
  position: absolute;
  -webkit-transition: all 0.35s ease;
  transition: all 0.35s ease;
}

.menu-animation a:before {
  background-color: #2980b9;
  bottom: 0;
  content: "";
  display: block;
  height: 3px;
  width: 0;
}

.menu-animation a:after {
  content: attr(data-hover);
  color: #fff;
  left: 0;
  max-width: 0;
  top: 0;
  padding: 0.5em 0;
  position: absolute;
  overflow: hidden;
  white-space: nowrap;
}

.menu-animation a:hover:before,
.smenu-animation .current a:before {
  opacity: 1;
  width: 100%;
}

.menu-animation a:hover:after,
.menu-animation .current a:after {
  max-width: 100%;
}

/***************************/
/*
/* header
/*
/***************************/

/* .header-book {
  max-width: 30%;
  padding: 30px 0 0;
}

.header-image {
  max-width: 70%;
  margin-bottom: -6px;
  padding: 0;
}

.header-image,
.header-book {
  float: left;
  text-align: center;
} */


.header-image {
  margin: 0 auto;
  width: 500px;
}

.header-image img {
  padding-bottom: 40px;
}

.header-book .pict {
  box-shadow: 0px 0px 5px -5px rgba(0, 0, 0, .5);
  max-width: 100%;
  padding: 38px 0 0;
}

.header-wrapper {
  max-width: 930px;
  margin: 0 auto;
  padding: 50px 0 20px;
}

img {
  height: auto;
  max-width: 100%;
}

.prelude {
  background: url("../images/bg.jpg") repeat-x bottom center #00a1e5;
}

.bookdata {
  background: url("../images/bg.jpg") repeat-x bottom center,url("../images/bg-water.png") repeat #00a1e5;
}

.interview {
  background: url("../images/bg-b.jpg") repeat-x bottom center #fff;
}

/***************************/
/*
/* bookinfo
/*
/***************************/

.author-bg {
  margin-bottom: 20px;
  padding: 20px;
}

.author-detail {
  margin-top: 50px;
}

.author-detail .author-name {
  color: #fff;
  font-size: 160%;
  margin: 2% 0;
  text-align: left;
}

.author-detail .author-name span {
  font-size: 60%;
}

.author-detail .profile {
  color: #000;
  font-size: 16px;
  font-weight: bold;
  line-height: 200%;
  text-align: left;
}

.author-detail .profile a {
  color: #d1141b;
  font-weight: bold;
  text-decoration: none;
}

.author-detail .profile a:hover {
  text-decoration: underline;
}

.book-detail .book {
  height: auto;
  vertical-align: bottom;
  width: 200px;
}

.book-detail .book:hover {
  opacity: .8;
}

.bookdata .frame-wrapper .section-title {
  margin-top: 30px;
}

/***************************/
/*
/* contents
/*
/***************************/

.book-contents {
  text-align: center;
}

.book-contents img {
  margin: 0 auto;
  width: 100%;
}

.contents {
  padding: 0 0 2%;
}

.contents .chapter {
  text-align: left;
  margin-top: 20px;
}

.contents ol {
  display: inline-block;
  font-size: 14px;
  line-height: 220%;
  margin-bottom: 20px;
  vertical-align: top;
}

.contents ol li ol {
  margin-top: 10px;
  padding-left: 20px;
}

.contents ol li ol li {
  list-style-type: disc;
  font-weight: bold;
}

.contents-lv-01 {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 20px;
}

.contents-lv-02 {
  color: #333;
  font-size: 18px;
}

.contents-lv-02-title {
  color: #fff;
  font-size: 22px;
  font-weight: bold;
}

.contents-lv-02-title span {
  display: block;
  font-size: 15px;
  font-weight: bold;
}

.chapter-wrapper {
  display: inline;
  float: left;
  max-width: 370px;
  margin: 10px 12px;
  width: 100%;
  word-wrap: break-word;
}

/***************************/
/*
/* bookreview
/*
/***************************/

.bookreview a {
  color: #ff00c8;
  font-weight: bold;
  text-decoration: none;
}

.bookreview a:active {
  color: #999;
  text-decoration: none;
}

.bookreview a:hover {
  color: #ff00c8;
  text-decoration: underline;
}

.bookreview b {
  font-size: 105%;
  font-weight: bold;
}

.bookreview blockquote {
  background: rgba(0,0,0,0.1);
  font-style: italic;
  line-height: 180%;
  margin-bottom: 30px;
  padding: 15px;
}

.bookreview .bookreview-text {
  padding: 20px 0 0;
}

.bookreview em {
  font-style: normal;
  font-weight: bold;
}

.bookreview .book-detail-foot {
  background: rgba(0,0,0,0.1);
  padding: 20px 0 80px;
}

.bookreview .book-detail-foot a {
  color: #fff;
  text-decoration: none;
}

.bookreview .book-detail-foot .strong {
  border: 0;
  margin-bottom: 0;
  padding: 0 0 10px;
}

.bookreview .book-detail-foot .strong a {
  color: #ff00c8;
}

.bookreview .book-detail-foot .strong a:hover {
  text-decoration: underline;
}

.bookreview .book-detail-foot .book-detail-box {
  color: #000;
}

.bookreview p {
  color: #333;
  font-size: 16px;
  line-height: 2.2em;
  margin: 2% 0 4%;
  padding: 0 10px;
}

.bookreview .pict {
  float: right;
  max-width: 250px;
  margin: 0 auto;
  padding: 15px 0 15px 15px;
}

/* .bookreview .pict:hover {
  opacity: 1;
} */

.bookreview li {
  list-style-type: disc;
}

.bookreview ol {
  list-style: inline;
  line-height: 200%;
  margin: 10px 0 30px 20px;
  text-align: left;
}

/***************************/
/*
/* interview
/*
/***************************/

.coming-soon {
  color: #333;
  font-size: 28px;
  font-weight: bold;
  text-align: center;
  margin: 60px 0;
}

.interview p {
  color: #000;
  font-size: 16px;
  line-height: 2em;
  margin-bottom: 5%;
  padding: 10px;
}

.interview .pict {
  float: right;
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  width: 100%;
}

.interview .pict:hover {
  opacity: 1;
}

.interview .question {
  color: #0971B2;
  font-size: 16px;
  font-weight: bold;
  margin: 20px 0;
  padding: 10px 10px 0;
  position: relative;
}

.interview .frame-wrapper .section-title {
  margin-top: 60px;
  margin-bottom: 50px;
}

/***************************/
/* footer
/***************************/

.book-detail-foot {
  padding: 2% 0 1.5%;
  width: 100%;
}

.book-detail-foot a {
  font-weight: bold;
}

.book-detail-foot .book {
  height: auto;
  vertical-align: bottom;
  width: 180px;
}

.book-detail-foot .book:hover {
  opacity: .8;
}

.book-detail-foot .book-a {
  display: inline-block;
  margin-right: 30px;
  vertical-align: top;
}

.book-detail-foot .book-detail-box {
  display: inline-block;
  max-width: 400px;
  text-align: left;
  padding: 10px 20px;
  vertical-align: top;
  width: 100%;
}

.book-detail-foot .strong a {
  color: #00a1e5;
  font-size: 1.3em;
}

.book-detail-foot .strong a span {
  display: block;
  font-size: .8em;
}

.book-detail-foot .book-detail-category {
  display: inline-block;
  margin: 0;
  opacity: .9;
}

.book-detail-foot li {
  display: inline-block;
}

.book-detail-foot span {
  opacity: .9;
}

.book-detail-wrapper {
  margin-top: -15px;
}

.site-footer {
  margin-top: -5px;
}

.site-footer .book-detail-foot .strong {
  font-size: 140%;
  margin-bottom: 1%;
}

.site-footer .book-detail-foot .book-detail-category {
  display: inline-block;
  margin: 0;
  opacity: .9;
}

.site-footer .book-detail-foot span {
  opacity: .9;
}

.site-footer .btn {
  border-radius: 5px;
  font-size: 20px;
  margin: 2% 0;
}

.site-footer .book-detail-foot .book-detail-box {
  display: inline-block;
  max-width: 330px;
  text-align: left;
  padding: 10px 20px;
  vertical-align: top;
  width: 100%;
}

.site-footer .inner-wrapper {
  padding: 10px 0;
}

.footer-bottom {
  background: #000;
  padding: 2% 0;
}

.footer-bottom a,
.footer-bottom a:active {
  color: #fff;
  font-size: 14px;
  padding: 10px;
}

.footer-bottom a:hover {
  border: none;
  opacity: .8;
  text-decoration: none;
}

.footer-bottom li {
  display: inline-block;
}

.footer-bottom li:before {
  content: "|";
  color: #fff;
}

.footer-bottom li:first-child:before {
  display: none;
}

.footer-bottom small {
  color: #fff;
  font-size: 12px;
  letter-spacing: 0;
}

.to-top {
  bottom: 30px;
  box-sizing: border-box;
  display: block;
  height: 105px;
  padding-top: 13px;
  position: fixed;
  text-align: center;
  right: 50px;
  width: 105px;
  z-index: 20;
}

.to-top:hover {
  border: none;
}

.button-7 {
  border:2px solid #00a1e5;
  border-radius: 10px;
  cursor:pointer;
  float:left;
  text-align:center;
  cursor:pointer;
  position:relative;
  box-sizing:border-box;
  overflow:hidden;
  margin:20px 0;
  width: 100%;
}

.button-7 a {
  display: block;
  font-family:arial;
  font-size: 20px;
  color:#00a1e5;
  text-decoration:none;
  line-height:50px;
  transition:all .5s ease;
  z-index:2;
  position:relative;
}

.eff-7 {
  border:0px solid #00a1e5;
  position:absolute;
  transition:all .5s ease;
  z-index:1;
  box-sizing:border-box;
  width: 100%;
}

.button-7:hover .eff-7 {
  border:180px solid #00a1e5;
}

.button-7:hover a {
  color:#fff;
}

@media screen and (max-width: 860px) {
  .inner-wrapper {
    padding: 30px 15px;
    width: 100%;
  }

  #bookreview {
    width: 100%;
  }

  #interview {
    padding-bottom: 0;
    width: 100%;
  }

  #bookdata .inner-wrapper,
  #bookreview .inner-wrapper,
  #contents .inner-wrapper,
  #interview .inner-wrapper {
    padding: 0;
    width: 100%;
  }

  /* #bookdata {
    display: inline-block;
    margin-top: -80px;
  } */

  .bookdata-top .btn-default {
    margin-top: 20px;
  }

  .frame-wrapper {
    margin: 0;
    padding: 30px 15px 15px;
  }

  main {
    padding: 0;
  }

  .pict {
    float: none;
    padding: 0;
  }

  .slim-display {
    display: block;
  }

  .wide-display {
    display: none;
  }

  .section-title {
    background-size: contain;
    font-size: 160%;
    line-height: .9em;
    margin-bottom: 20px;
    max-width: 100%;
  }

  /* .section-title span {
    display: block;
  } */

  .section-title img {
    width: 100%;
  }

  #social-icon {
    max-width: 540px;
    margin-bottom: 10px;
  }

  #social-icon a {
    margin: 0 2px;
  }

  .mean-container .mean-bar {
    background-color: #ec2b94;
    left: 0;
    padding: 0;
    position: fixed !important;
    top: 0;
    z-index: 10;
  }

  .mean-container .mean-nav {
    background: rgba(56, 57, 64, 0.8);
  }

  .mean-container .mean-nav ul li a {
    border-bottom: none;
    font-size: 14px;
    text-align: center;
  }

  .mean-container .mean-bar > a {
    border-bottom: none;
    position: fixed;
  }

  .mean-container .mean-bar > a:hover {
    border-bottom: none;
  }

  .mean-container .mean-bar span {
    font-size: 10px;
    padding: 0 5px;
  }

  /***************************/
  /* site-header
  /***************************/

  .site-header {
    height: auto;
    margin-bottom: 0;
  }

  .header-image {
    background: none;
    max-width: 100%;
  }

  .header-image img {
    width: 90%;
  }

  .header-book {
    padding: 0;
    width: 100%;
  }

  .header-book img {
    width: 100%;
  }

  .header-wrapper {
    padding: 60px 0 10px;
  }

  /***************************/
  /* book-info
  /***************************/

  .author-detail .profile {
    margin: 0 0 10%;
  }

  .author-detail {
    float: none;
    font-size: 14px;
    margin: 8% auto;
    width: 100%;
  }

  .author-detail .author-name {
    line-height: 160%;
    margin: 6% 0 2%;
  }

  .author-detail .pict {
    padding: 10px 0;
  }

  .bookdata {
    padding: 0;
  }

  .bookdata .inner-wrapper {
    margin-bottom: 10px;
  }

  .bookdata .section-title {
    background-size: contain;
  }

  .bookdata .frame-wrapper {
    padding: 50px 15px 15px;
  }

  .bookdata-top {
    padding: 0 15px 80px;
  }

  .book-detail > a {
    display: none;
  }

  .book-detail > div {
    margin-left: 0;
    overflow: hidden;
  }

  .book-detail .strong {
    font-size: 18px;
  }

  .book-detail-box {
    max-width: 100%;
    width: 100%;
  }

  .book-detail .book-detail-box a {
    font-size: 100%;
  }

  .bookreview .frame-wrapper {
    margin-top: -20px;
  }

  .bookreview .book-detail-foot {
    padding: 15px 15px 0;
  }

  .bookreview .book-detail-foot .btn {
    margin-top: 15px;
  }

  .book-contents {
    max-width: 100%;
    width: 100%;
  }

  /***************************/
  /* contents
  /***************************/

  .author-bg {
    padding: 0;
  }

  .contents .chapter {
    float: none;
    max-width: 100%;
    margin: 20px 0;
    width: 100%;
  }

  .contents .inner-wrapper {
    text-align: center;
  }

  .contents .strong {
    font-size: 90%;
  }

  .contents ol {
    margin-bottom: 0;
    padding: 0;
  }

  .contents ol li ol {
    padding-left: 16px;
  }

  /* .contents .contents-lv-01 {
    margin-bottom: 20px;
  } */

  .contents .contents-lv-01 div:first-child {
    font-size: 30px;
    border-width: 2px;
    line-height: 1.8em;
  }

  .contents .contents-lv-01 div:last-child {
    color: #434031;
    font-size: 18px;
    font-weight: bold;
  }

  .contents-lv-02 {
    padding-left: 0;
  }

  .chapter-wrapper {
    max-width: 100%;
    margin: 0;
  }

  /***************************/
  /* bookreview
  /***************************/

  #bookreview {
    margin: -60px 0 0 0;
    padding: 60px 0 0;
  }

  .bookreview .bookreview-text {
    text-align: left;
    padding: 0;
  }

  .bookreview .bookreview-text ol {
    text-align: left;
    padding: 0;
  }

  .bookreview .pict {
    max-width: 150px;
  }

  .bookreview p {
    font-size: 100%;
    line-height: 2.2em;
    margin: 6% 0;
    text-align: left;
    padding: 0;
  }

  .bookreview ul {
    margin: 0 0 20px 20px;
  }

  .bookreview .book-detail-foot .strong {
    margin-top: 20px;
  }

  /***************************/
  /* intereview
  /***************************/

  .interview {
    margin-top: -60px;
    padding: 0;
  }

  .interview .frame-wrapper .section-title {
    background-size: contain;
    margin-bottom: 30px;
  }

  .interview .frame-wrapper {
    padding: 0 15px 15px;
  }

  .interview p {
    font-size: 14px;
    line-height: 1.8em;
    margin-bottom: 7%;
    padding: 0 0 20px;
  }

  .interview .pict {
    float: none;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
  }

  .interview .question {
    font-size: 95%;
    line-height: 160%;
    padding: 0;
  }

  /***************************/
  /* site-footer
  /***************************/

  .book-detail-foot {
    margin: 2% auto;
    padding: 0;
  }

  .book-detail-foot a {
    margin: 10px 0;
    width: 100%;
  }

  .book-detail-foot .book-detail-box {
    max-width: 90%;
    text-align: left;
    padding-bottom: 30px;
  }

  .book-detail-foot .strong {
    margin: 10px 0;
  }

  .book-detail-foot .strong a span {
    display: inline;
    font-size: 1em;
    font-weight: bold;
  }

  .book-detail-foot .book-a {
    margin-right: 0;
  }

  .book-detail-wrapper {
    margin-top: -20px;
  }

  .social_box {
    margin-top: 10%;
    text-align: center;
  }

  .site-footer .book-detail-foot {
    padding: 4% 0;
    width: 95%;
  }

  .site-footer .book-detail-foot .book-a {
    border: none;
    margin: 0;
  }

  .site-footer .book-detail-foot .book-detail-box {
    padding: 0;
    max-width: 90%;
  }

  .site-footer .book-detail-foot .book-detail-category {
    font-size: 20px;
  }

  .site-footer .btn {
    box-sizing: border-box;
    margin: 5% 0 0;
    width: 100%;
  }

  .site-footer .inner-wrapper {
    padding: 0;
  }

  .footer-bottom a,
  .footer-bottom a:active {
    border: none;
    font-size: 11px;
    padding: 0 2px;
  }

  .to-top {
    display: none !important;
  }

  .section-title span {
    font-size: 12px;
  }
}

@media (min-width: 376px) and (max-width: 860px) {
  .contents ol li ol {
    padding: 10px 20px 0;
  }

  .contents ol {
    margin-bottom: 0;
  }
}

@media (min-width: 376px) and (max-width: 600px) {
  #social-icon {
    max-width: 90%;
    margin: 10px auto 0;
  }

  #social-icon a {
    max-width: 23%;
  }

  #social-icon-footer {
    margin-left: 15px;
  }

  #social-icon-footer a {
    max-width: 22%;
  }

  .chapter-wrapper h4 {
    padding: 0 5px;
  }

  #bookreview .inner-wrapper {
    margin: 10px auto;
  }
}

@media screen and (max-width: 375px) {
  #social-icon {
    margin-left: 6px;
    padding-bottom: 20px;
  }

  #social-icon a {
    max-width: 23%;
  }

  #social-icon-footer {
    margin: 0 5px;
  }

  #social-icon-footer a {
    margin: 0 5px 15px 0;
    max-width: 23%;
  }
}