* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth; /* スムーススクロール */
}

img {
  display: block;
  max-width: 100%;
}

a {
  text-decoration: none;
  color: #333;
}
a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5 {
  font-size: 16px;
  font-weight: normal;
}

.font-bold {
  font-weight: bold;
}

.font-nomal {
  font-style: 16px;
  font-weight: normal;
}

.shippori-mincho-bold {
  font-family: "Shippori Mincho", serif;
  font-weight: 700;
  font-style: normal;
}

.mt-30 {
  margin-top: 30px;
}

.mt-50 {
  margin-top: 50px;
}

.mt-100 {
  margin-top: 100px;
}

h3 {
  font-size: 2em;
  text-align: center;
  position: relative;
  line-height: 1.8;
}

h3::after {
  content: "";
  display: block;
  width: 100px;
  height: 3px;
  background-color: #5a56b2;
  position: absolute;
  bottom: -10%;
  left: 50%;
  transform: translatex(-50%);
}

h4 {
  font-size: 1.4em;
  text-align: center;
  position: relative;
  line-height: 1.8;
}

h5 {
  padding-top: 20px;
}

.sp {
  display: none;
}

.dot-line {
  content: none;
  border-top: 3px dashed #5a56b2;
  width: 80%;
  margin: auto;
}

.in {
  width: 75%;
  margin: auto;
}
.flex-column--2 {
  display: flex;
  flex-direction: column;
  gap: 2em;
}

/* -----header----- */
header {
  padding: 1em 2em;
  background-color: #5a56b2;
  text-align: center;
  box-shadow: 9px 10px 20px 16px rgba(0, 0, 0, 0.08);
}

.logo img {
  width: 15%;
  margin: auto;
}

.thanks {
  color: #fff;
  font-size: 1.2em;
}

.mv img {
  width: 100%;
}
.mv__event img {
  width: 100%;
}

.nav {
  display: flex;
  justify-content: center;
  margin-top: 50px;
}

.nav li {
  margin: 0 30px;
}

/* -----button----- */
.btn {
  padding: 16px 30px;
  background-color: #5a56b2;
  border-radius: 30px;
  color: #fff;
  font-size: 1em;
  transition: all 0.2s ease;
  display: inline-block;
}

.btn:hover {
  text-decoration: none;
  background-color: #fff;
  border: 1px solid #5a56b2;
  color: #5a56b2;
  box-shadow: 0px 0px 2px #8d8d8d;
  transform: translateY(2px);
}
.btn--about {
  padding: 16px 30px;
  background-color: #5a56b2;
  border-radius: 30px;
  color: #fff;
  font-size: 1em;
  transition: all 0.2s ease;
  display: inline-block;
  min-width: 320px;
  width: auto;
  text-align: center;
}

.btn--about:hover {
  text-decoration: none;
  background-color: #fff;
  border: 1px solid #5a56b2;
  color: #5a56b2;
  box-shadow: 0px 0px 2px #8d8d8d;
  transform: translateY(2px);
}

.button__more {
  display: block;
  max-width: 300px;
  margin: 1em auto;
  text-align: center;
  padding: 0.5em 0;

  background-color: #5a56b2;
  color: #fff;
  border-radius: 30px;
  font-size: 1em;
  transition: 0.5s;
}

.slash {
  text-align: center;
  margin-top: 80px;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  line-height: 1;
  color: #333;
  font-weight: bold;
}

.slash::before,
.slash::after {
  width: 1px;
  height: 28px;
  content: "";
  background-color: #5a56b2;
}

.slash::before {
  margin-right: 4em;
  transform: rotate(-45deg);
}

.slash::after {
  margin-left: 4em;
  transform: rotate(45deg);
}

/* ----- greeting ----- */
.greeting__txt {
  font-size: 20px;
}

/* ------about------ */
.about__contents > p {
  font-size: 3rem;
  margin: 0.5em;
}

.greeting h3,
.about h3 {
  line-height: 2;
}

.about__txt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2em;
  text-align: left;
  margin: 0 auto;
  font-size: 20px;
}

/* -----align----- */
.txt-right {
  text-align: right;
}
.txt-center {
  text-align: center;
}

.bk {
  background-image: url(img/back.png);
  padding: 30px 0 60px 0;
}

.section2 span {
  font-weight: normal;
  font-size: 16px;
}

/* ----grid------ */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 1fr;
  grid-column-gap: 0px;
  grid-row-gap: 0px;
}

.grid-1 {
  grid-area: 1 / 1 / 2 / 2;
}

.grid-2 {
  grid-area: 1 / 2 / 2 / 3;
}

.h-line {
  display: flex;
  align-items: center;
}

.h-line:before,
.h-line:after {
  content: "";
  height: 1px;
  flex-grow: 1;
  background-color: #5a56b2;
}

.h-line:before {
  margin-right: 1rem;
}

.h-line:after {
  margin-left: 1rem;
}

.coming-soon {
  text-align: center;
  font-size: 2em;
  color: #5a5a5a;
}

.content-img {
  width: 50%;
  margin: auto;
}

/* -----table---- */
table {
  width: 100%;
}

table,
td,
th {
  border-collapse: collapse;
}
td,
th {
  border: 1px solid #d9d9d9;
  padding: 10px;
}
th {
  width: 30%;
  color: #fff;
  background: #979797;
}
.even {
  background: #fff;
}
.odd {
  background: #fff;
}

.credit {
  font-size: 0.7em;
}

/* ---- color ---*/
.yellow-box {
  background-color: #fffee8;
  border-radius: 16px;
  padding: 20px;
  margin-top: 30px;
  margin-bottom: 30px;
  box-shadow: 0 0 15px #e3e3e3;
}

.red {
  color: #990000;
}

/* -------grid------- */
.img-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr;
  grid-column-gap: 0px;
  grid-row-gap: 0px;
}

.img-grid figure {
  padding: 5px;
}

.fg1 {
  grid-area: 1 / 1 / 2 / 2;
}

.fg2 {
  grid-area: 1 / 2 / 2 / 3;
}

.fg3 {
  grid-area: 1 / 3 / 2 / 4;
}

.fg4 {
  grid-area: 1 / 4 / 2 / 5;
}

.form_btn {
  margin: 20px 0px;
  display: block;
  max-width: 300px;
  padding: 0.5em 1em;
  background-color: #d6b155;
  border-radius: 30px;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  box-shadow: 2px 2px 4px #7f7f7f;
  text-align: center;
}

.grayout {
  opacity: 0.5;
  pointer-events: none;
  cursor: default;
}

/* -----event----- */
.event__img {
  object-fit: contain;
  width: 80%;
  margin: 0 auto;
}

.event-blk {
  margin: auto;
  width: 80%;
}
.event-blk__ttl {
  font-size: 2rem;
  color: #5a56b2;
}

.img-flex {
  display: flex;
  justify-content: center;
}

.event-flex {
  display: flex;
  justify-content: center;
  align-items: center;
}

.event-flex img {
  width: 50%;
  margin-right: 10px;
}

.pdf {
  width: 30%;
  margin: auto;
  margin-top: 10px;
}

.content-img {
  width: 40%;
  margin-right: 5px;
}

.event__ttl {
  position: relative;
  z-index: 0;
}
.event__ttl::before {
  content: "";
  position: absolute;
  background: url(./img/event_txt.png) no-repeat;
  background-size: contain;
  width: 11%;
  height: 638px;
  top: 50%;
  left: -2em;
  z-index: -1;
}

/* -----event end----- */
.table__event {
  position: relative;
}

.table__event::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.6);
  width: 100%;
  height: 100%;
}

.table__event--txt {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  color: #fff;
  font-size: 1.5em;
  font-weight: bold;
  text-align: center;
  width: 100%;
}

/* ----exhibition */
.exhibition {
  position: relative;
  z-index: 0;
}
.exhibition::before {
  content: "";
  position: absolute;
  background: url(./img/exhibition_txt.png) no-repeat;
  background-size: contain;
  width: 60%;
  height: 144px;
  top: 0;
  left: 0;
  z-index: -1;
}
/* ----history */
.history__ttl {
  position: relative;
  z-index: 0;
}
.history__ttl::before {
  content: "";
  position: absolute;
  background: url(./img/history_txt.png) no-repeat;
  background-size: contain;
  width: 58%;
  height: 150px;
  top: -118px;
  left: 50%;
  transform: translateX(-50%);
  z-index: -1;
}

.history__img {
  margin: 2em 0;
}
.history__img img {
  height: 200px;
  object-fit: cover;
}

.history {
  padding: 100px 0;
}

.history p {
  margin-top: 100px;
}

.year-number {
  font-size: 4em;
  color: #5a56b2;
  margin-bottom: 30px;
}

.year-img-flex {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr;
  grid-column-gap: 0px;
  grid-row-gap: 0px;
}

.year-img-flex figure {
  padding: 5px;
}

.li1 {
  grid-area: 1 / 1 / 2 / 2;
}

.li2 {
  grid-area: 1 / 2 / 2 / 3;
}

.li3 {
  grid-area: 2 / 1 / 3 / 2;
}

.li4 {
  grid-area: 2 / 2 / 3 / 3;
}

.year-img-flex img {
  width: 250px;
}

.purple {
  color: #5a56b2;
}

.page {
  display: flex;
  justify-content: center;
}

.page p {
  margin-right: 30px;
}

/* -----footer----- */
.footer {
  background-color: #5a56b2;
  padding: 30px;
}

.container {
  margin: 30px auto 0;
  max-width: 1000px;
  width: 100%;
}
/* 中央以外のスライド */
.slick-img img {
  height: auto;
  opacity: 0.3;
  transform: scale(0.8);
  transition: opacity 0.5s, transform 0.5s;
  width: 100%;
}
/* 中央のスライド */
.slider .slick-center img {
  opacity: 1;
  transform: scale(1);
}

.tab-menu {
  display: flex;
  justify-content: center;
  margin-top: 50px;
}

.tab {
  color: #fff;
  padding: 10px 30px;
  background-color: #5a56b2;
  border-radius: 30px;
  margin-right: 10px;
}

.tab:hover {
  text-decoration: none;
  color: #5a56b2;
  background-color: #fff;
  border: 1px solid #5a56b2;
}

.tab.active {
  color: #5a56b2;
  background-color: #fff;
  border: 1px solid #5a56b2;
}

.tab-contents {
  display: none;
}

.tab-contents.active {
  display: block;
}

/* フェードイン */

.fadeIn {
  transform: translate3d(0, 50px, 0);
  transition: 1s;
  opacity: 0;
}
.fadeIn.animated {
  transform: translate3d(0, 0, 0);
  opacity: 1;
}

.title {
  pointer-events: none;
}

/* ----------- pc ---------- */
@media screen and (min-width: 768px) {
  /* -----grid */
  .pc-grid--2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1em;
  }
  .pc-grid--3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 1em;
  }
  .pc-grid--4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    column-gap: 1em;
  }

  /* -----button----- */
  .btn {
    max-width: 300px;
    text-align: center;
    width: 100%;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  }
}

/* ----------- sp ---------- */
@media (max-width: 767px) {
  .mt-100 {
    margin-top: 50px;
  }

  header {
    padding: 10px;
  }

  .thanks {
    font-size: 1em;
  }

  h3 {
    font-size: 1.3em;
  }

  h4 {
    font-size: 1em;
  }

  .pc {
    display: none;
  }

  .sp {
    display: block;
  }

  .logo img {
    width: 36%;
  }

  .in {
    width: 80%;
  }

  .title {
    pointer-events: all;
    padding: 10px 10px;
    margin: auto;
    margin-top: 30px;
    width: 60%;
    background-color: #5a56b2;
    border-radius: 30px;
    color: #fff;
    font-size: 1.2em;
    transition: 0.5s;
  }

  .menu-active {
    color: #5a56b2;
    background-color: #fff;
    border: 1px solid #5a56b2;
  }

  .toggle {
    display: none;
  }

  .nav {
    margin-top: 0px;
  }

  .nav li {
    margin: 10px;
    text-align: center;
  }

  .btn {
    font-weight: bold;
    font-size: 1em;
    color: #333;
    background-color: transparent;
  }

  .btn:hover {
    color: #5a56b2;
    background-color: transparent;
    border: none;
  }

  .slash {
    margin-top: 0;
  }

  /* ----- mv -----*/
  .mv img {
    height: 36dvh;
    object-fit: cover;
  }
  .mv__event img {
    height: 18dvh;
    object-fit: cover;
  }
  /* ----- greeting -----*/
  .greeting__txt {
    font-size: 16px;
  }

  .event__ttl::before {
    width: 18%;
    height: 354px;
    top: 0;
  }

  /* ----- about -----*/
  .about__txt {
    font-size: 16px;
  }

  /* event */
  .event-blk__ttl {
    font-size: 1.6rem;
  }

  /* ----- exhibition -----*/
  .exhibition::before {
    width: 100%;
    height: 70px;
    left: 0;
  }
  .exhibition__ttl {
    margin-top: 0;
  }

  /* ----- history -----*/
  .history__ttl::before {
    width: 100%;
    height: 80px;
    left: 0;
    top: -60px;
    transform: translateX(0);
  }

  /* ----- grid -----*/
  .sp-grid--2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1em;
  }
  .sp-column--1 {
    display: flex;
    flex-direction: column;
    gap: 1em;
  }

  .grid {
    display: block;
  }

  .grid-2 {
    margin-top: 30px;
  }

  .img-grid {
    display: block;
  }

  .img-grid img {
    display: block;
    margin: auto;
    margin-top: 10px;
    width: 71%;
  }

  /* -----table---- */
  th {
    width: 100%;
  }
  td,
  th {
    display: block;
  }

  /* -----event----- */
  .event__img {
    width: 100%;
  }

  .event-flex {
    display: block;
  }

  .event-flex img {
    display: block;
    margin: auto;
    margin-top: 10px;
    width: 100%;
  }

  .pdf {
    width: 70%;
  }

  .tab-menu {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;
  }

  .tab1 {
    grid-area: 1 / 1 / 2 / 2;
  }

  .tab2 {
    grid-area: 1 / 2 / 2 / 3;
  }

  .tab3 {
    grid-area: 2 / 1 / 3 / 2;
  }

  .tab4 {
    grid-area: 2 / 2 / 3 / 3;
  }

  .tab {
    margin: 10px;
    text-align: center;
  }

  .event-blk {
    width: 100%;
  }

  /* -----event end----- */
  .table__event--txt {
    font-size: 1.1em;
  }

  /* ---- history ----*/
  .history__img img {
    height: 130px;
  }
  .history {
    padding: 50px 0;
  }

  .history p {
    margin: 0;
    margin-top: 30px;
    padding: 0;
  }

  .year-img-flex {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    grid-column-gap: 0px;
    grid-row-gap: 0px;
  }

  .li1 {
    grid-area: 1 / 1 / 2 / 2;
  }

  .li2 {
    grid-area: 1 / 2 / 2 / 3;
  }

  .li3 {
    grid-area: 2 / 1 / 3 / 2;
  }

  .li4 {
    grid-area: 2 / 2 / 3 / 3;
  }

  .year-img-flex figure {
    padding: 5px;
  }

  .footer {
    padding: 20px;
  }
}