.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

.top-section {
  text-align: center;
  padding: 40px 0 62px;
}

.main-title {
  font-size: 36px;
  color: #009944;
  margin-bottom: 22px;
}

.index-section {
  text-align: center;
  padding: 70px 0 100px;
  background-color: #fff9ef;
  overflow: scroll;
}

.sub-title {
  color: #009944;
  font-size: 30px;
  line-height: 30px;
  margin-bottom: 40px;
}

.index .index__flex-content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}

.index .index__flex-inner {
  width: 30%;
}

.index .index__group {
  margin-bottom: 20px;
}

.index .index__menu-content {
  position: relative;
  margin-bottom: 20px;
}

.index .index__menu-content--last {
  margin: 0;
}

.index-button {
  background-color: #fff;
  border-radius: 30px;
  display: block;
  width: 100%;
  height: 100px;
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, 0.16);
          box-shadow: 0 0 10px rgba(0, 0, 0, 0.16);
  cursor: pointer;
  position: relative;
  color: #3f3f3f;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  border: none;
}

.index-button--internship {
  height: 306px;
}

@media screen and (max-width: 1000px) {
  .index-button--internship {
    height: 386px;
  }
}

@media screen and (max-width: 1000px) {
  .index-button--small {
    height: 140px;
  }
}

@media screen and (max-width: 1000px) {
  .index-button--last {
    height: 140px;
  }
}

.index-button--open {
  background-color: #6dc78c;
  border-radius: 30px 30px 0 0;
  -webkit-box-shadow: none;
          box-shadow: none;
  color: #fff;
}

.index-button .index-button__text {
  font-size: 18px;
  line-height: 32px;
  letter-spacing: 0.025em;
  font-weight: bold;
}

.index-button .index-button__icon {
  position: absolute;
  top: 50%;
  right: 28px;
  -webkit-transform: translate(0, -50%);
          transform: translate(0, -50%);
}

@media screen and (max-width: 1000px) {
  .index-button .index-button__icon--small {
    top: auto;
    right: auto;
    bottom: 18px;
    left: 50%;
    -webkit-transform: translate(-50%, 0);
            transform: translate(-50%, 0);
  }
}

.index-button .index-button__sp-br {
  display: none;
}

@media screen and (max-width: 1000px) {
  .index-button .index-button__sp-br {
    display: block;
  }
}

.index-button .index-button__accent-text {
  margin-right: 2em;
}

@media screen and (max-width: 1000px) {
  .index-button .index-button__accent-text {
    margin: 0;
  }
}

.index-menu {
  background-color: #6dc78c;
  z-index: 3;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  text-align: left;
  cursor: auto;
  display: none;
  border: none;
}

.index-menu--left {
  position: absolute;
  bottom: 0;
  left: 0;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
  border-radius: 0 30px 30px 30px;
  width: 650px;
  padding: 50px 65px;
}

@media screen and (max-width: 1000px) {
  .index-menu--left {
    width: calc(100vw - 40px);
    padding: 0 30px 40px;
  }
}

.index-menu--center {
  position: absolute;
  bottom: 0;
  left: 0;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
  border-radius: 0 30px 30px 30px;
  width: 650px;
  padding: 50px 65px;
}

@media screen and (max-width: 1000px) {
  .index-menu--center {
    left: 50%;
    -webkit-transform: translate(-50%, 100%);
            transform: translate(-50%, 100%);
    border-radius: 30px;
    width: calc(100vw - 40px);
    padding: 0 30px 40px;
  }
}

.index-menu--right {
  position: absolute;
  bottom: 0;
  right: 0;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
  border-radius: 30px 0 30px 30px;
  width: 650px;
  padding: 50px 65px;
}

@media screen and (max-width: 1000px) {
  .index-menu--right {
    width: calc(100vw - 40px);
    padding: 0 30px 40px;
  }
}

.index-menu--cover {
  width: 100%;
  border-radius: 0 0 30px 30px;
  padding: 20px 65px 50px;
}

@media screen and (max-width: 1000px) {
  .index-menu--cover {
    padding: 0 30px 40px;
  }
}

.index-menu .index-menu__inner {
  border-top: 1px solid #a6e2ba;
}

@media screen and (max-width: 1000px) {
  .index-menu .index-menu__inner--small {
    border: none;
  }
}

.index-menu .index-menu__link {
  padding: 20px 16px 20px 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  border-bottom: 1px solid #a6e2ba;
}

@media screen and (max-width: 1000px) {
  .index-menu .index-menu__link {
    padding: 20px 8px 20px 0;
  }
}

.index-menu .index-menu__text {
  color: #fff;
  font-size: 18px;
  line-height: 32px;
  letter-spacing: 0.025em;
  font-weight: bold;
  margin-right: 1em;
}

@media screen and (max-width: 1000px) {
  .arrow-bottom {
    display: none;
  }
}

footer {
  height: 48px;
  color: #878e8a;
  background-color: #edfaf1;
  text-align: center;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  font-weight: bold;
}