* {
  margin: 0;
  padding: 0;
  /* box-sizing: border-box; */
 }

body,
html {
  overflow-x: hidden; }

html {
  font-size: 14px; }
  @media (min-width: 576px) {
    html {
      font-size: 15px; } }
  @media (min-width: 768px) {
    html {
      font-size: 16px; } }

.container {
  max-width: 980px;
  margin: 0 auto; }

code, pre {
  padding: 0.5rem;
  background-color: #f6f8fa;
  color: #4A2AB2;
  line-height: 1.7; }

pre {
  padding: 0.5rem;
  margin-bottom: 1rem;
  overflow: auto; }

code {
  padding: 0.2rem;
  margin-bottom: 0.1rem;
  font-size: 90%;
  background-color: #f6f8fa;
  border-radius: .25rem; }

.header-wrapper {
  padding: 5rem 0; }

.page-intro {
  text-align: center;
  line-height: 1.2; }
  .page-intro h1 {
    display: inline-block;
    font-weight: 300;
    font-size: 4rem;
    color: #7dffc3;
    background: -webkit-linear-gradient(135deg, #fff9b0, #7dffc3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; }
  .page-intro h2 {
    font-weight: 300;
    font-size: 1.5rem;
    line-height: 1.7;
    color: #fff;
    margin-bottom: 2rem; }

.section-list {
  padding: 3rem 2.5rem;
  margin-bottom: 2rem;
  background: #fff; }
  @media (min-width: 576px) {
    .section-list {
      border-radius: 1rem; } }
  .section-list h2 {
    margin-bottom: 1.25rem;
    font-size: 2rem;
    color: #4A2AB2; }

.section-list-box h3 {
  margin-bottom: 1rem; }

.section-list-box:not(:last-child) {
  border-bottom: 1px solid #dddddd;
  margin: 3rem 0;
  padding-bottom: 5rem; }

.footer-wrapper {
  padding: 1rem 0;
  color: #fff;
  text-align: center; }
  .footer-wrapper a {
    color: currentColor; }

.timeline-theme-1 {
  width: 800px;
  margin: 100px auto; }

.timeline-1 .timeline-list {
  width: 800px;
  height: 350px; }

.timeline-1 .timeline-item {
  width: 800px;
  height: 350px;
  background: #ddd;
  border: none; }

.timeline-visual {
  float: left;
  width: 43%;
  margin-right: 3%;
  line-height: 1; }
  .timeline-visual img {
    max-width: 100%; }

.timeline-detail {
  float: left;
  width: 53%;
  height: 100%;
  overflow-y: auto; }

.timeline-detail-list {
  margin: 10px;
  padding: 10px; }
  .timeline-detail-list li {
    margin-bottom: 0.4rem; }

.timeline-theme-2 {
  width: 1400px;
  margin: 70px auto auto; 
  position: relative;
}
.timeline-theme-2 .development-line-title{
  display: grid;
  justify-content: center;
  font-size: 26px;
  position: absolute;
  top: 35%;
  left: -4%;
}
.timeline-theme-2 .development-line-title:after{
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background-color: #e60012;
  position: absolute;
  bottom: -8px;
  left: calc(53% - 56px);
}
.timeline-small-box .title{
  font-size: 5em;
  color: #5a5858;
  height: 80px;
  line-height: 80px;
  margin-bottom: 60px;
  text-align: left;
  font-weight: bold;
  text-indent: 2.5em;
  margin-top: 8%;
}
.timeline-small-box .prev-title{
  font-size: 5em;
  color: #d3d3d3;
  height: 80px;
  line-height: 80px;
  margin-bottom: 60px;
  text-align: left;
  font-weight: bold;
  text-indent: 2.5em;
  margin-top: 8%;
  position: absolute;
  bottom: -12%;
}
.timeline-small-box .detail p{
  color: #5a5858;
  text-align: left;
  text-indent: 11em;
  font-size: 16px;
  margin-bottom: 40px;
}
.timeline-small-box .timeline-list {
  width: 1400px;
  height: 600px; }

.timeline-small-box .box-item {
  float: left;
  width: 1400px;
  height: 600px;
  color: #fff;
  text-align: center; 
  position: relative;
}

/* .theme-1 {
  background: #4A2AB2; }

.theme-2 {
  background: #7dffc3; }

.theme-3 {
  background: #23A5E9; }

.theme-4 {
  background: #93C763; }

.theme-5 {
  background: #949923; }

.theme-6 {
  background: #990055; } */

  @media screen and (min-width: 768px) and (max-width: 1440px){
    .timeline-theme-2,
    .timeline-small-box .timeline-list,
    .timeline-small-box .box-item {
      width: 1200px;
    }
  }