@charset "utf-8";
/*=================================
1: reset-CSS
2: setting
3: root
4: parts (title,list,table,etc)
5: header
6: gnav
7: contents
6: footer
=================================*/


/* 1: reset-CSS(HTML5 Reset Stylesheet)
================================== */
/*
html5doctor.com Reset Stylesheet
v1.6.1
Last Updated: 2010-09-17
Author: Richard Clark - http://richclarkdesign.com
Twitter: @rich_clark
*/

html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, 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 {
  margin:0;
  padding:0;
  border:0;
  outline:0;
  font-size:100%;
  vertical-align:baseline;
  background:transparent;
}
body {
  line-height:1;
}
article,aside,details,figcaption,figure,
footer,header,hgroup,menu,nav,section,main {
  display:block;
}
nav ul,
ul {
  list-style:none;
}
blockquote, q {
  quotes:none;
}
blockquote:before, blockquote:after,
q:before, q:after {
  content:'';
  content:none;
}
a {
  margin:0;
  padding:0;
  font-size:100%;
  vertical-align:baseline;
  background:transparent;
}
/* change colours to suit your needs */
ins {
  background-color:#ff9;
  color:#000;
  text-decoration:none;
}
/* change colours to suit your needs */
mark {
  background-color:#ff9;
  color:#000;
  font-style:italic;
  font-weight:bold;
}
del {
  text-decoration: line-through;
}
abbr[title], dfn[title] {
  border-bottom:1px dotted;
  cursor:help;
}
table {
  border-collapse:collapse;
  border-spacing:0;
}
/* change border colour to suit your needs */
hr {
  display:block;
  height:1px;
  border:0;
  border-top:1px solid #cccccc;
  margin:1em 0;
  padding:0;
}
input, select {
  vertical-align:middle;
}

/* 2: setting
================================== */
*, *:before, *:after {
  box-sizing: border-box;
}
html {
  font-size: 62.5%;/* 1rem = 10px */
  scroll-padding-top: 100px;
}
@media print, screen and (min-width: 768px) {
  html {
    overflow: auto;
    min-width: var(--content-min-width);
  }
}
body {
  width: 100%;
  font-family: var(--font-base);
  font-feature-settings : "palt";
  color: var(--text);
  font-size: var(--font-size--md);
  font-weight: 500;
  line-height: 1.7;
  word-wrap: break-word;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;/* safari_textBold*/
  -webkit-text-size-adjust: 100%;/* safari_textBold*/
}
@media all and (-ms-high-contrast:none){
  body {font-family:'Noto Sans JP', sans-serif, Meiryo, 'ヒラギノ角ゴ Pro W3', メイリオ, Osaka, 'MS PGothic', arial, helvetica, sans-serif;}
}
@media print, screen and (min-width: 768px) {
  body {
    font-size: var(--font-size--lg);
    min-width: var(--content-min-width);
  }
}

/* リンク設定*/
a {
  color: var(--link);
  text-decoration: underline;
}
a:hover {
  color: var(--link-hover);
  text-decoration: none;
}

/* フォームスタイルの完全初期化*/
input, button, textarea, select {
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  outline: none;
  line-height: 1;
  font-family : inherit;
  font-size   : 100%;
}
@media screen and (max-width: 699px) {
input, button, textarea, select {
  max-width: 100%;
}
}/*@media*/

input[type="text"],
select {
  padding: 4px;
  line-height: 1.6;/*iOS*/
  height: 32px;
  vertical-align: top;
}

button,
input[type="submit"] {
  border-radius: 0;
  background: #003680;
  color: #FFF;
  padding: 8px;
}

/*IE10以降のフォーム内の要素を非表示*/
input::-ms-clear {visibility:hidden}
input::-ms-reveal {visibility:hidden}

/* clearfix*/
.cf:after { content: ""; clear: both; display: block; }
.clear { clear: both;}


/* 3: root
================================== */
:root {
  --primary: #de6715;
  --primary-rbg: 222, 103, 21;
  --sub-color: #f3dbca;
  --text: #383737;
  --text-gray: #616161;
  --text-red: #E6001D;
  --bg-gray: #e2e9e9;
  --bg-sub: #fff6f0;
  --link: #0a75b8;
  --link-hover: #3aa9ef;
  --nav-hover: #be4f05;
  --border-gray: #DAE4EF;
}

:root {
  --font-base: 'Noto Sans JP', sans-serif, 'Yu Gothic', '游ゴシック', '游ゴシック体', YuGothic, Meiryo, メイリオ, Osaka, 'MS PGothic', arial, helvetica, sans-serif;
  --font-size--x2s: 1.0rem;
  --font-size--xs: 1.2rem;
  --font-size--sm: 1.4rem;
  --font-size--md: 1.5rem;
  --font-size--lg: 1.6rem;
  --font-size--xl: 1.8rem;
  --font-size--x2l: 2.1rem;
  --font-size--x3l: 2.4rem;
  --font-size--x4l: 2.8rem;
  --font-size--x5l: 3.2rem;
  --font-size--x6l: 4rem;
  --font-size--x7l: 4.8rem;
  --font-size--x8l: 6.4rem;
}

:root {
  --content-max-width: 980px;
  --content-min-width: 800px;
  --side-margin-pc: 40px;
  --side-margin-sp: 16px;
  --vertical-margin-pc: 56px;
  --vertical-margin-sp: 40px;
  --top-margin-pc: 56px;
  --top-margin-sp: 40px;
  --bottom-margin-pc: 64px;
  --bottom-margin-sp: 40px;
}

/* 4: parts (title,list,table,etc)
================================== */
/* ------margin classes------ */
.mb8 {
  margin-bottom: 8px;
}
.mb16 {
  margin-bottom: 16px;
}
.mb24 {
  margin-bottom: 24px;
}
.mb32 {
  margin-bottom: 32px;
}
.mb40 {
  margin-bottom: 40px;
}
.mb40 {
  margin-bottom: 40px;
}
.mt16 {
  margin-top: 16px;
}
.mt32 {
  margin-top: 32px;
}
.mr1em {
  margin-right: 1em;
}
.mb1em,
.boxmb1em p {
  margin-bottom: 1em;
}
.mb1em:last-child,
.boxmb1em p:last-child {
  margin-bottom: 0;
}
.txtIndent p,
.txtIndent {
  text-indent: 1em;
}
.entry-content p:not(:last-child) {
  margin-bottom: 1em;
}

/* ------title classes------ */
.ttlDesign1 {
  margin-bottom: 24px;
  font-size: var(--font-size--x2l);
  font-weight: bold;
  text-align: center;
  color: #FFF;
  background-color: var(--primary);
}
@media print, screen and (min-width: 768px) {
  .ttlDesign1 {
    margin-bottom: 40px;
    font-size: var(--font-size--x3l);
  }
}

/* ------text classes------ */
.red {/*赤文字*/
  color: var(--text-red);
}
.fB {/*太文字*/
  font-weight: bold;
}
.fS {/*小さいフォント*/
  font-size: 90%;
}
.fSS {/*さらに小さいフォント*/
  font-size: 70%;
}
.fBig {/*大きいフォント*/
  font-size: 120%;
}
.fI {/*イタリック*/
  font-style: italic;
}
.tU {/*アンダーライン*/
  text-decoration: underline double;
}
.vM {
  vertical-align: middle;
}
.tC {
  text-align: center;
}
@media print, screen and (min-width: 768px) {
  .tC_pc {
    text-align: center;
  }
}
.tR {
  text-align: right;
}
.tL {
  text-align: left;
}
.tel,.tel:hover {
  color: var(--text);
  text-decoration: none;
}

/* ------table classes------ */


/* ------list classes------ */
.list_dot > li {
  position: relative;
  width: 100%;
  margin-bottom: 8px;
  padding-left: 20px;
}
.list_dot_mb0 > li {
  margin-bottom: 0;
}
.list_dot > li:before {
  position: absolute;
  top: 10px;
  left: 7px;
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 6px;
  border: 1px solid #A0A5B4;
  background: #FFF;
}
.list_arw > li {
  position: relative;
  background-size: 14px;
  margin-bottom: 8px;
  padding-left: 18px;
}
.list_arw > li::after {
  position: absolute;
  left: 4px;
  top: 40%;
  display: block;
  content: "";
  width: 8px;
  height: 8px;
  border-top: 2px solid #A0A5B4;
  border-right: 2px solid #A0A5B4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}
.listDesign_no,
.listDesign_Lroman,
.listDesign_Lalpha {
  margin-bottom: 24px;
  padding-left: 24px;
}
.listDesign_no > li {/*算用数字*/
  list-style-type: decimal;
  margin-bottom: 8px;
}
.listDesign_Lroman li {/*小文字のローマ数字*/
  list-style-type: lower-roman;
  margin-bottom: 4px;
}
.listDesign_Lalpha li {/*小文字のアルファベット*/
  list-style-type: lower-alpha;
  margin-bottom: 4px;
}
.listDesign_Lalpha > li:last-child,
.listDesign_Lroman > li:last-child,
.listDesign_no > li:last-child {
  margin-bottom: 0;
}
.listDesign_no2 > li {
  /*括弧付の数字リスト*/
  position: relative;
  margin-bottom: 4px;
  padding-left: 2em;
  counter-increment: cnt;
}
.listDesign_no2 > li:before {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  content: "（"counter(cnt) "） ";
}

/* ------dl classes------ */

/* ------flexbox------ */
.flexbox_wap {/* 折り返しのみ */
  display: -webkit-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}
.flexbox_sbwap {/* 折り返し・水平方向端揃え */
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}
.flexbox_sb {/* 折り返しなし・水平方向端揃え */
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}
.flexbox_c {/* 折り返しなし・水平中央揃え */
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: center;
  justify-content: center;
}
.flexbox_cwap {/* 折り返し・水平中央揃え */
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}
.flexbox_atc {/* 垂直方向中央揃え */
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
}
.flexreverse {
  flex-direction: row-reverse;
}


/* 3: icon
================================== */
.link_blank {
  background: url(../img/icn_blank.svg) right center no-repeat;
  background-size: 14px;
  padding-right: 18px;
}
.pdf {
  background: url(../img/icn_pdf.svg) right center no-repeat;
  background-size: contain;
  margin-right: 8px;
  padding-right: 24px;
}

/* 5: header
================================== */
#header {
  background: #fff;
  position: relative;
  z-index: 10;
}
#header .flexbox_sb {
  justify-content: flex-start;
  -webkit-justify-content: flex-start;
  margin-left: 5px;
}
@media all and (min-width: 768px) {
  #header .inr {
    -webkit-align-items: center;
    align-items: center;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--side-margin-pc);
  }
  #header .flexbox_sb {
    justify-content: space-between;
    -webkit-justify-content: space-between;
    margin: 0 auto;
  }
}
.logo {
  margin: 5px 0 0 0;
}
.logo img {
  max-width: 100px;
  height: 55px;
}
.logo li:first-child {
  margin-right: 15px;
}
@media all and (min-width: 768px) {
  .logo img {
    max-width: 150px;
  }
}
@media all and (min-width: 768px) {
  .hd_jst {
    display: block;
  }
  .hd_jst img {
    width: 180px;
    height: auto;
  }
}

/* 6: gnav
================================== */
.menu {
  display: none;
  position: absolute;
  top: 65px;
  right: 0;
  left: 0;
  width: 90%;
  margin: 0 auto;
  padding: 30px 0;
  background: var(--primary);
  z-index: 999;
}
.menu a {
  display: block;
  padding: 20px;
  color: #FFF;
  font-weight: bold;
  text-align: center;
  text-decoration: none;
}
.menu_trigger {
  position: absolute;
  top: 18px;
  right: 15px;
  background: var(--primary);
  border-radius: 18px;
  border: none;
  width: 110px;
  height: 36px;
  text-indent: -900em;
  overflow: hidden;
  cursor: pointer;
  outline: none;
  z-index: 999;
  -webkit-transition: .35s ease-in-out;
  -moz-transition: .35s ease-in-out;
  transition: .35s ease-in-out;
}
.menu_trigger img {
  position: absolute;
  top: 13px;
  left: 0;
  right: 0;
  width: 60px;
  height: auto;
  margin: 0 auto;
  padding-left: 20px;
}
.menu_trigger span {
  display: inline-block;
  transition: all .4s;
}
.menu_trigger span {
  position: absolute;
  left: 20px;
  width: 16px;
  height: 3px;
  background-color: #FFF;
}
.menu_trigger span:nth-of-type(1) {
  top: 13px;
}
.menu_trigger span:nth-of-type(2) {
  top: 21px;
}
.menu_trigger.active span {
  background-color: #FFF;
}
.menu_trigger.active span:nth-of-type(1) {
  -webkit-transform: translateY(4px) rotate(-45deg);
  transform: translateY(4px) rotate(-45deg);
}
.menu_trigger.active span:nth-of-type(2) {
  -webkit-transform: translateY(-4px) rotate(45deg);
  transform: translateY(-4px) rotate(45deg);
}
.layer {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #FFF;
  opacity: 0.6;
  z-index: 5;
}

/* media query -> pc
=======================*/
@media all and (min-width: 768px) {
  .menu_trigger {
    display: none;
  }
  .menu {
    display: block;
    position: static;
    width: 100%;
    margin: 0 30px;
    padding: 20px 0;
    background: none;
    font-size: 0;
  }
  .menu a {
    position: relative;
    display: block;
    padding: 0;
    color: #000;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
  }
  .menu a:hover {
    color: var(--nav-hover);
  }
  .menu a::after {
    position: absolute;
    bottom: 0;
    left: 0;
    content: '';
    width: 0;
    height: 3px;
    background-color: var(--nav-hover);
    transition: .3s;
  }
  .menu a:hover::after {
    width: 100%;
  }
  .menu li {
    display: inline-block;
    padding-left: 20px;
    font-size: 1.6rem;
  }
  .menu li:first-child {
    padding-left: 0;
  }
}

/* 5: contents
================================== */
/* display none*/
.sp_none {
  display: none;
}
@media only screen and (min-width: 768px) {
  .sp_none {
    display: inline-block;
  }
  .pc_none {
    display: none;
  }
}
.mainimg_bg {
  background: url(../img/main_back.jpg) no-repeat top right;
  background-size: cover;
  text-align: center;
}
.mainimg_bg h1 {
  position: relative;
  margin-bottom: 24px;
  padding-bottom: 16px;
  font-size: var(--font-size--x3l);
  font-weight: normal;
}
.mainimg_bg h1:after {
  content: '';
  position: absolute;
  bottom: 0;
  display: inline-block;
  width: 100%;
  max-width: 440px;
  height: 1px;
  left: 50%;
  -moz-transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  background-color: var(--border-gray);
}
@media only screen and (min-width: 768px) {
  .mainimg_bg h1 {
    font-size: var(--font-size--x6l);
  }
}
.mainimg_bg h1 span {
  font-size: var(--font-size--x4l);
  font-weight: bold;
}
@media only screen and (min-width: 768px) {
  .mainimg_bg h1 span {
    font-size: var(--font-size--x7l);
    text-shadow: 2px 3px 3px rgba(255, 255, 255, 0.8);
  }
}
.day {
  margin-bottom: 24px;
  font-size: var(--font-size--x3l);
  font-weight: bold;
  color: var(--primary);
}
.place {
  max-width: 600px;
  margin: 0 auto;
  background-image: linear-gradient(-90deg, rgba(244, 145, 84, 1), rgba(254, 220, 64, 1));
}
.place span {
  display: inline-block;
  padding: 16px 24px;
  color: #FFF;
  background-color: rgba(var(--primary-rbg), 0.7);
  font-weight: bold;
}
.mainimg_bg .section_inr {
  padding: 40px 24px;
}
@media only screen and (min-width: 768px) {
  .mainimg_bg .section_inr {
    display: none;
    padding: 56px 40px;
  }
}
.mainimg_bg .section_inr .bgW {
  display: inline-block;
  padding: 8px;
  background-color: rgba(255, 255, 255, 0.55);
}
@media only screen and (min-width: 768px) {
  .mainimg_bg .section_inr .bgW {
  background-color: inherit;
}
}
.section_inr {
  padding: var(--vertical-margin-sp) var(--side-margin-sp) var(--bottom-margin-sp);
}
@media only screen and (min-width: 768px) {
  .section_inr {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: var(--vertical-margin-pc) var(--side-margin-pc) var(--bottom-margin-pc);
  }
}
.pcMV {
  display: none;
}
@media only screen and (min-width: 768px) {
  .pcMV {
    display: block;
  }
  .pcMV img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 1200px;
    margin: 0 auto;
  }
}
#outline {
  position: relative;
  z-index: 2;
}
.flyer {
  text-align:center;
  margin-top:1em;
}
@media only screen and (min-width: 768px) {
  .flyer {
    width:250px;
  }
}
.flyer img {
  max-width:100%;
  height:auto;
  margin:0 auto;
}
#outline dl:not(:last-child) {
  margin-bottom: 24px;
}
@media all and (min-width: 768px) {
  #outline dl {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
  }
}
#outline dt {
  margin-bottom: 8px;
  padding: 8px;
  background: var(--sub-color);
    text-align: center;
  font-weight: bold;
  border-radius: 3px;
  color: var(--txt);
}
@media all and (min-width: 768px) {
  #outline dt {
    width: 10em;
    margin-bottom: 0;
    margin-right: 2em;
  }
}
#outline dd {
  color: var(--primary);
}

#outline span {
	width:6em;
	display:inline-block;
}


#registration .btn a {
  display: block;
  background: var(--primary);
  border: solid 1px var(--primary);
  color: white;
  font-weight: bold;
  font-size: 1.8rem;
  text-align: center;
  width: 15em;
  padding: 0.5em;
  border-radius: 10px;
  margin: 1em auto;
  box-shadow: 0px 0px 15px -5px #777777;
  text-decoration: none;
  -webkit-transition: all .2s;
  transition: all .2s;
}

#registration .btn a:hover,
#registration .btn_end:hover {
  background: white;
  color: var(--primary);
}
#registration .btn_end {
  display: block;
  background: var(--primary);
  border: solid 1px var(--primary);
  color: white;
  font-weight: bold;
  font-size: 1.8rem;
  text-align: center;
  width: 15em;
  padding: 0.5em;
  border-radius: 10px;
  margin: 1em auto;
  box-shadow: 0px 0px 15px -5px #777777;
}



#program {
  background-color: var(--bg-sub);
}
.programList li {
  display: -webkit-flex;
  display: flex;
  font-size: var(--font-size--xl);
}
.programList .ttl {
  display: inline-block;
  padding-bottom: 4px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--primary);
  font-weight: bold;
  color: var(--primary);
}
.programList li:not(:last-child) {
  margin-bottom: 16px;
}
.no {
  width: 2.5em;
}
@media all and (min-width: 768px) {
  .programList li {
    font-size: var(--font-size--xl);
  }
}
#program table {
  width:100%;
}
#program th {
  border-right:2px solid #000;
  width:8em;
  font-size: 1.8rem;
}
#program td {
    font-size: 1.8rem;
    padding: 8px 8px 8px 16px;
  }
@media only screen and (max-width: 768px) {
  #program th {
    font-weight: bold;
    width:100%;
    display:block;
    border-top:2px solid #000;
    border-right:0;
  }
  #program td {
    display:block;
    width:100%;
    margin-bottom:1em;
  }
}
.flexbox_wap dl {
	width:50%;
}
.speaker dl {
  padding: 8px;
  font-size: 1.8rem;
}
@media only screen and (min-width: 768px) {
  .speaker dl {
    display: -webkit-flex;
    display: flex;
  }
}
.speaker dt {
  margin-right: 16px;
  font-weight: bold;
  color: #333;
}
#program h3 {
  font-size: 1.8rem;
  font-weight: bold;
  background: var(--sub-color);
  color: #222;
  margin: 0 auto 1em;
  padding: 8px;
}
.speaker h3 span {
  display: block;
  background: white;
  color: var(--primary);
  margin-top: 8px;
  padding: 8px;
}
.speaker h4 {
  font-size: 1.6rem;
  font-weight: bold;
  margin:20px 0px 10px 0px;
  padding: 3px 8px;
border-top: 1px solid var(--primary);
border-bottom: 1px solid var(--primary);
}
@media only screen and (min-width: 768px) {
  .speaker h3 span,#keynote_speaker h3 span {
    float: right;
    text-align: right;
    margin-top: 0;
    padding: 0 16px;
  }
}
.speaker .bg {
  background: rgba(255, 255, 255, 0.7);
}
.speaker .ttl,#keynote_speaker .ttl {
  font-size: 1.8rem;
  font-weight: bold;
  color: #333333;
}
.speaker .panelist {
  clear: both;
}
.speaker .panelist .name{
  font-weight: bold;
  color: #333;
}
.rmrk {
  margin-top: 16px;
}
@media only screen and (min-width: 768px) {
  .rmrk {
    text-align: right;
  }
}
span.image_circle img {
  width:120px;
  height:120px;
  object-fit:cover;
  border-radius:50%;
  object-position:0px 0px;
  float:left;
  margin-bottom:16px;
  margin-right:16px;
}
@media only screen and (min-width: 768px) {
  .list.flexbox_atc:not(:has(.image_circle)) {
    margin-left: 136px;
    margin-bottom: 1em;
  }
}
#contact,#registration {
  background: var(--bg-gray);
}
.footerLink {
  padding: 16px 0;
}
.footerLink li a {
  display: inline-block;
  position: relative;
  padding-left: 15px;
  margin-right: 24px;
}
.footerLink li a::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 5px;
  position: absolute;
  left: 0;
  top: 35%;
  content: "";
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--primary);
  border-right: 2px solid var(--primary);
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

/* 6: footer
================================== */
#footer {
  padding: 30px 20px;
  background: var(--primary);
}
.copy {
  text-align: center;
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.7);
}
/* go topボタン */
#page-top {
  position: fixed;
  bottom: 20px;
  right: 10px;
  font-weight: bold;
  font-size: 80%;
  z-index: 5;
  text-align: center;
}
#page-top a {
  position: relative;
  display: block;
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  opacity: 0.7;
}
#page-top a:hover {
  opacity: 0.7;
}
#page-top a:active {
  opacity: 1;
}
#page-top a:after {
  position: absolute;
  right: 15px;
  top: 40%;
  display: block;
  content: "";
  width: 10px;
  height: 10px;
  border-top: 2px solid #FFF;
  border-right: 2px solid #FFF;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

/* media query -> sp
=======================*/
@media all and (min-width: 768px) {
  /* go topボタン */
  #page-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
  }
  #page-top a {
    width: 60px;
    height: 60px;
  }
  #page-top a:after {
    position: absolute;
    right: 21px;
    width: 17px;
    height: 17px;
  }
}