:root{
  --bg:#ffffff;
  --panel-shadow: 0 10px 30px rgba(0, 0, 0, 0.30), 0 4px 10px rgba(0, 0, 0, 0.12);
  --bg-red: #e81f18;
  --bg-white: #ffffff;
  --line-blue: #0d99ff;
  --line-thickness: 2px;
  --split-x-ratio: 0.915; /* 上辺の交点（左=0） */
  --split-y-ratio: 0.325; /* 左辺の交点（上=0） */
  scroll-behavior: smooth;
}
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: var(--bg-red);
  pointer-events: none;
}
.page-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--bg-white);
  clip-path: polygon(
    0 0,
    calc(var(--split-x-ratio) * 100%) 0,
    0 calc(var(--split-y-ratio) * 100%)
  );
}
.page-bg::after {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--split-y-ratio) * 100%);
  width: hypot(
    calc(var(--split-x-ratio) * 100vw),
    calc(var(--split-y-ratio) * 100vh)
  );
  transform-origin: left center;
  transform: rotate(
    atan2(
      calc(var(--split-y-ratio) * -100vh),
      calc(var(--split-x-ratio) * 100vw)
    )
  );
}
.logo {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  z-index: 0;
}

/* Mobile-first reset */
*{box-sizing:border-box}
html,body{height:100%}
body{
	margin:0;  
  font-family: "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  background:var(--bg);
	-webkit-font-smoothing:antialiased;
}

main{
    position: relative;
    z-index: 1;
    max-width: 480px;
    margin: auto;
    box-shadow: var(--panel-shadow);
    background: var(--bg-red);
}

h1,h2,h3,p,ul,li{
    margin: 0;
    padding: 0;
}

.read-title{
    margin: auto;
    text-align: center;
}

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

.hero{
    max-width:var(--max-width);
    margin:0 auto;
    text-align: center;
    padding: 0;
}

.hero-inner img{
  max-width: 100%;
  width: 100%;
}

.hero-flow{
  margin-top: 20px;
}

.hero-ttl{
  width: 100%;
}

.step{
  position: relative;
    width: 100%;
  border-radius: 10px;
  margin-top: 30px;
  font-weight: 900;
}

.hashtag{
  font-size: 1.3em;
  color: #2190D5;
}

.marker{
  font-size: 1.3em;
  line-height: 1.7;
   background:linear-gradient(transparent 60%, #ffff00 60%);
}

.serif-area{
  position: absolute;
  top: 40px;
  left: 73%;
  max-width: 80px;
}

.step-attention{
  display: inline-block;
  margin: 10px 0;
  font-size: .8em;
  line-height: 1.7;
  font-weight: normal;
  color: #E81F18;
}

.goepisode{
  display: block;
  background: var(--bg-red);
  border-radius: 8px;
  width: 70%;
  margin: 5px auto 13px auto;
}

.goepisode img{
  max-width: 180px;
  width: 100%;
  text-align: center;
  margin: 11px 0 8px 0;
}

.xlink{
  display: block;
  background-color: #000;
  border-radius: 8px;
  width: 70%;
  margin: 15px auto 13px auto;
}

.xlink img{
  max-height: 15px;
  width: 100%;
  text-align: center;
  margin: 11px 0 8px 0;
}

.w100{ 
    margin-top:10px;
    width: 100%;}

.attention{
    max-width:var(--max-width);
    margin:40px auto;
    padding: 10px;
    background-color: #fff;
}

.attention-ttl{
  margin: 20px auto;
  color: #fff;
  text-align: center;
  border-radius: 20px;
}


.attention-ttl img{
  width: 190px;
}

.attention-txt{
    font-size: 14px;
    margin: 20px auto;
}

.site-footer{
    text-align: center;
    padding: 10px 0;
    font-size: 14px;
    color: #fff;}

.step-box{
    margin: 10px 10px 35px 10px;
    background-color: #fff;
    padding: 5px;
    border-radius: 11px;
    position: relative;
    background-image: url(img/step1_bg.svg);
    background-repeat: no-repeat;
    background-size: 35%;
    background-position: 100% 100%;
}

.bg2{
    background-image: url(img/step2_bg.png);
    background-size: 30%;
}

.bg3{
    background-image: url(img/step3_bg.svg);
    background-size: 30%;
}

.mb{
  margin-bottom: 10px;
}

.message{
color: #fff;
font-weight: 600;
font-size: 12px;
}

.step-howto{
    position: absolute;
    margin: auto;
    right: 0;
    left: 0;
    top: -19px;
    background-color: #000000;
    color: #fff;
    width: 100%;
    border-radius: 11px 11px 0 0;
}
.step-howto img{
    height: 19px;
    margin-top: 8px;
}

.campaign_time{
  margin: 30px 10px;
}

.contents-wrap{
  background-color: #fff;
  border-radius:11px;
  margin: 0 10px;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  align-content: center;
}

.contents{
  text-align: left;
  margin: 10px 5px 15px 5px;
  width: 30%;
}

.contents a:first-child{
  margin-bottom: -3px;
  padding: 0;
  display: block;
}

.contents_ttl{
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contents_author{
  font-size: 12px;
  color: #838383;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contents_post{
  display: block;
  margin-top: 3px;
  background-color: #000;
  width: 100%;
  border-radius: 4px;
  text-align: center;
}

.contents_post img{
  margin: 8px 0 2px 0;
  max-width: 80px;
}

.attention-txt{  font-size: 13px;
  line-height: 1.6;
}

.attention-list{
  list-style: none;
  margin: 5px auto 10px auto;
}

ul {
  list-style-type: none;}

ul li {
  position: relative; 
}

ul li::before {
  content: "※";
  font-weight: 700;
}

.button-share{
  margin: 0 auto 10px auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
  max-width: 330px;
}

.button-share a{
width: 80px;
}

.button-share a img{
  width: 100%;
}

.share_button{
width: 80px;
background-color: initial;
padding: 0;
border: initial;
cursor: pointer;
}

.share_button img{
width: 100%;
}

#share-status{
margin-bottom: 20px;
text-align: center;
color: #fff;  
}

.repostmargin{
margin: 15px auto 0 auto!important;
}

.lastmargin{
margin-bottom: 13px;
}