html {
  font-size: 62.5%;
  font-family: "Montserrat", "Noto Sans JP", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  color: rgb(255, 255, 255);
  background-color: #141414;
  letter-spacing: 0.05em;
  scroll-behavior: smooth;
}

img {
  width: 100%;
}

.wrapper {
  position: relative;
  width: 100%;
  margin: 0;
  overflow: hidden;
}

.flexwrap {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
@media (max-width: 680px) {
  .flexwrap {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-flow: column;
        -ms-flex-flow: column;
            flex-flow: column;
  }
}

.header {
  width: 100%;
  height: 70px;
  position: fixed;
  padding: 30px;
  z-index: 30;
  background-color: rgba(0, 0, 0, 0.4509803922);
}
.header__flex {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
@media (max-width: 680px) {
  .header {
    padding: 10px 8px 10px;
    height: 50px;
  }
}

.logo {
  font-weight: bold;
  font-size: 2.8rem;
  color: #d136d1;
  width: 200px;
  line-height: 10px;
}

.nav__flex {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: end;
  -webkit-justify-content: flex-end;
      -ms-flex-pack: end;
          justify-content: flex-end;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-column-gap: 8%;
     -moz-column-gap: 8%;
          column-gap: 8%;
  padding-right: 3%;
}
@media (max-width: 680px) {
  .nav__flex {
    padding-right: 0;
  }
}
.nav__flex li {
  color: #fff;
  font-weight: bold;
  font-size: 1.8rem;
}
.nav__flex li:nth-child(3) {
  margin-right: 0;
}
@media (max-width: 480px) {
  .nav__flex li {
    font-size: 1.4rem;
  }
}
.nav__sp {
  display: none;
}
@media (max-width: 480px) {
  .nav__sp {
    display: block;
  }
}

.mv {
  background-image: -webkit-linear-gradient(315deg, #0e002e, #1e092b, #320c65, #a01b7c, #c21780);
  background-image: linear-gradient(135deg, #0e002e, #1e092b, #320c65, #a01b7c, #c21780);
}
.mv__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 50px;
  height: 700px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
      -ms-flex-align: center;
          align-items: center;
  background-image: url(../img2/mv.png);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: right 70px;
  position: relative;
}
@media (max-width: 480px) {
  .mv__inner {
    background-position: 10% bottom;
    background-size: cover;
    padding: 0 10px;
  }
}

.subtitle {
  color: #d136d1;
  font-size: 2.4rem;
  font-weight: bold;
  font-size: 24px;
  line-height: 1.1666666667;
  letter-spacing: 0.05em;
}

.main_text {
  font-size: 100px;
  line-height: 1.06;
  letter-spacing: 0.016em;
  font-weight: bold;
}
@media (max-width: 680px) {
  .main_text {
    font-size: 50px;
  }
}

.day {
  font-size: 36px;
  line-height: 1;
  letter-spacing: 0.07em;
  font-weight: bold;
}

.teiji {
  width: 326px;
  position: absolute;
  bottom: 26px;
  right: 78px;
}
@media (max-width: 680px) {
  .teiji {
    right: -36px;
  }
}

.catch {
  position: relative;
  z-index: 2;
}
@media (max-width: 680px) {
  .catch .btn__cv {
    -webkit-transform: translateY(50px);
            transform: translateY(50px);
  }
}

.btn {
  font-size: 1.8rem;
  font-size: 18px;
  line-height: 1.2222222222;
  background-image: -webkit-linear-gradient(225deg, #664bbf, #c21780);
  background-image: linear-gradient(-135deg, #664bbf, #c21780);
  padding: 22px 100px;
  border-radius: 50px;
  margin-top: 25px;
  border-bottom: solid 6px #9c0e66;
  font-weight: bold;
}
@media (max-width: 480px) {
  .btn {
    padding: 12px 60px;
  }
}

.name_text {
  position: absolute;
  bottom: 0;
  right: 0;
  font-size: 21px;
  line-height: 0.9;
  margin-bottom: 20px;
}
.name_text span {
  font-size: 16px;
}
@media (max-width: 680px) {
  .name_text {
    -webkit-transform: scale(0.6);
            transform: scale(0.6);
    bottom: -20px;
    right: -55px;
  }
}

.sec {
  margin: 0 auto 80px auto;
  max-width: 1110px;
  padding: 0 30px;
}
.sec__head {
  text-align: center;
  padding-top: 110px;
}
@media (max-width: 680px) {
  .sec__head {
    padding-top: 30px;
  }
}
.sec__title {
  color: #d136d1;
  font-size: 60px;
  line-height: 1.8833333333;
  font-weight: bold;
  line-height: 1;
}
.sec__title span {
  font-size: 22px;
  font-weight: bold;
  display: block;
  color: #fff;
  margin-top: 8px;
}
.sec__text_title {
  font-weight: bold;
  color: #d136d1;
  font-size: 48px;
  line-height: 1.3333333333;
}
@media (max-width: 680px) {
  .sec__text_title {
    font-size: 2.8rem;
  }
}
.sec__title_sub {
  font-size: 22px;
  font-weight: bold;
}
@media (max-width: 680px) {
  .sec__title_sub {
    font-size: 1.8rem;
  }
}
.sec__text {
  font-weight: bold;
  font-size: 16px;
  line-height: 1.8;
  margin-top: 40px;
  text-align: justify;
  word-break: break-all;
}
@media (max-width: 680px) {
  .sec__text {
    font-weight: normal;
    line-height: 1.4;
  }
}
.sec__flex {
  -webkit-column-gap: 70px;
     -moz-column-gap: 70px;
          column-gap: 70px;
  padding: 60px 0;
}
@media (max-width: 680px) {
  .sec__flex {
    padding: 60px 0 0;
  }
}

.img {
  -webkit-box-flex: 0;
  -webkit-flex: 0 1 40%;
      -ms-flex: 0 1 40%;
          flex: 0 1 40%;
}

.textarea {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
@media (max-width: 680px) {
  .textarea {
    padding-top: 1rem;
  }
}

@media (max-width: 480px) {
  .about img {
    aspect-ratio: 4/2;
    -o-object-fit: cover;
       object-fit: cover;
    -o-object-position: center 40%;
       object-position: center 40%;
  }
}

.speaker {
  background-image: -webkit-linear-gradient(315deg, #0e002e, #1e092b, #320c65, #a01b7c, #c21780);
  background-image: linear-gradient(135deg, #0e002e, #1e092b, #320c65, #a01b7c, #c21780);
}
@media (max-width: 680px) {
  .speaker {
    padding-bottom: 60px;
  }
  .speaker .sec {
    margin: 0 auto;
  }
}
.speaker .img img {
  aspect-ratio: 1/1;
  -o-object-fit: cover;
     object-fit: cover;
  -o-object-position: center top;
     object-position: center top;
}
@media (max-width: 680px) {
  .speaker .flexwrap {
    -webkit-box-orient: vertical;
    -webkit-box-direction: reverse;
    -webkit-flex-flow: column-reverse;
        -ms-flex-flow: column-reverse;
            flex-flow: column-reverse;
  }
}

.reverse {
  -webkit-box-orient: horizontal;
  -webkit-box-direction: reverse;
  -webkit-flex-direction: row-reverse;
      -ms-flex-direction: row-reverse;
          flex-direction: row-reverse;
}
@media (max-width: 680px) {
  .reverse {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
        -ms-flex-direction: column;
            flex-direction: column;
  }
}

.session .flexwrap {
  padding: 40px 20px;
  border-bottom: solid 1px #d136d1;
}
@media (max-width: 680px) {
  .session .flexwrap {
    padding: 20px 0;
  }
}
.session h3 {
  color: #d136d1;
  font-size: 22px;
  line-height: 1.9545454545;
  font-weight: bold;
}
@media (max-width: 680px) {
  .session h3 {
    font-size: 1.8rem;
    line-height: 1.2;
    margin-bottom: 1rem;
  }
}
.session .time {
  font-size: 22px;
  line-height: 1.9545454545;
  font-weight: bold;
  width: 240px;
  color: #fff;
}
@media (max-width: 680px) {
  .session .time {
    font-size: 2rem;
  }
}
.session dd {
  font-size: 16px;
  line-height: 1.5;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
}
@media (max-width: 680px) {
  .session dd {
    letter-spacing: 0.01em;
  }
}

.registor {
  background-image: url(../img2/bg.jpg);
  background-size: 20%;
  background-repeat: repeat;
}
.registor .form {
  margin-top: 40px;
  border-radius: 20px;
  background-color: #1a1a1a;
  border: solid 2px #d136d1;
  padding: 80px;
  font-size: 16px;
  line-height: 2;
}
@media (max-width: 680px) {
  .registor .form {
    padding: 44px;
  }
}
.registor .form__require {
  color: #d136d1;
  margin-left: 1rem;
  font-size: 12px;
  line-height: 2.25;
}
.registor .form__input {
  background-color: #fff;
  width: 50%;
  height: 40px;
  border-radius: 6px;
  color: #333;
  padding-left: 1rem;
}
@media (max-width: 680px) {
  .registor .form__input {
    width: 100%;
  }
}
.registor .form__item {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-flow: column;
      -ms-flex-flow: column;
          flex-flow: column;
  margin: 18px auto 30px;
}
.registor .form__radio {
  margin-right: 30px;
}
@media (max-width: 680px) {
  .registor .form__radio {
    margin-right: 15px;
  }
}
.registor .form__textarea {
  background-color: #fff;
  border-radius: 6px;
  width: 100%;
  height: 255px;
  padding: 10px;
  color: #333;
}
.registor .form__textarea::-webkit-input-placeholder {
  color: rgb(138, 137, 137);
}
.registor .form__textarea::-moz-placeholder {
  color: rgb(138, 137, 137);
}
.registor .form__textarea:-ms-input-placeholder {
  color: rgb(138, 137, 137);
}
.registor .form__textarea::-ms-input-placeholder {
  color: rgb(138, 137, 137);
}
.registor .form__textarea::placeholder {
  color: rgb(138, 137, 137);
}
.registor .form__select {
  background-color: rgb(255, 255, 255);
  border-radius: 6px;
  width: 50%;
}
@media (max-width: 480px) {
  .registor .form__select {
    width: 100%;
  }
}
.registor .form__select {
  color: #333;
  padding-left: 10px;
}
.registor .form__btn {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
      -ms-flex-pack: center;
          justify-content: center;
}

@media screen and (max-width: 480px) {
  .registor .form {
    padding: 16px;
  }
  .registor .form__textarea {
    width: 100%;
    max-width: 440px;
  }
}
.page_top {
  color: #d136d1;
  position: fixed;
  bottom: 20px;
  right: 20px;
  border: solid 1px #d136d1;
  border-radius: 50%;
  padding: 10px;
}

.copyright {
  padding: 1rem;
}
@media (max-width: 680px) {
  .copyright {
    text-align: center;
  }
}

.sp {
  display: none;
}
@media (max-width: 680px) {
  .sp {
    display: block;
  }
}