html {
  font-size: 62.5%;
}
body {
  font-family: "Söhne", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
              "Segoe UI", Roboto, Helvetica, Arial,
              "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 1.6rem;
  line-height: 1.6;
  color: #0f2350;
  background-color: #F7F9FB;
  position: relative;
  scroll-behavior: smooth;
}
img {
    max-width: 100%;
}
.pc {
  display: block;
}
.sp {
  display: none;
}
a,
a img {
  transition: all 0.3s;
}
a img:hover {
  opacity: 0.5;
}
h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  padding: 0;
}
h1,
h2 {
  font-size: 24px;
}
h3 {
  font-size: 18px;
}
h4,
h5 {
  font-size: 16px;
}
.main-wrapper ul,
.main-wrapper ol {
  display: grid;
  gap: 0.5em;
  padding: 0 0 0 1.5em;
  margin: 1em 0;
}
.main-wrapper article ul,
.main-wrapper article ol {
  margin: 0.5em 0;
}
main a {
  color: #6697F2;
  text-decoration: none;
  border-bottom: 1px solid #6697F2;
}
main a:hover {
  border: none;
}
footer a {
  color: #0f2350;
  text-decoration: none;
}
footer a:hover {
  color: #6697F2;
}

/* h */
h1,
h2,
h3,
h4,
h5 {
  font-weight: 700;
}

/* text */
#logo {
  line-height: 1;
}
.ht {
  font-size: 1.2rem;
}
span.bk {
  display: block;
}
p {
  line-height: 1.7;
  /*
  margin-bottom: 1em;
  */
}
header p,
.navigation p,
footer p {
  margin: 0;
  padding: 0;
}
main p {
  padding: 0;
  margin: 0 0 0.75em 0;
}
#site-title {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.4;
}
.sub-item-title {
  margin-bottom: 24px;
  padding: 12px;
  /*
  background: rgba(15, 35, 80, 0.05);
  */
  background: rgba(15, 35, 80, 0.18);
}
.sub-title {
  display: block;
  font-size: 80%;
}
#nav-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
}
#nav-title span {
  display: block;
  font-size: 1rem;
  font-weight: 400;
}
.page-title {
  margin-bottom: 24px;
}
.inc-item .page-title {
  margin: 0;
}
.copyright {
  font-size: 1.2rem;
}
a.link-btn {
  min-width: 120px;
  display: inline-block;
  text-align: center;
  line-height: 1;
  padding: 12px 24px;
  background: #0f2350;
  border-radius: 24px;
  color: #F7F9FB;
  font-size: 1.4rem;
  font-weight: 500;
  text-decoration: none;
  margin: 1em 0;
  text-decoration: none;
  border: none;
}
a.link-btn:hover {
  background: #6697F2;
}
address {
  font-style: normal;
  font-size: 1.4rem;
}

/* navi */
#sp-btn {
  display: none;
}
nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 2em;
}
.nav-content a {
  color: #0f2350;
  text-decoration: none;
}
.nav-content a:hover {
  color: #6697F2;
}
.nav-content {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
}
.navigation {
  max-width: 1124px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-content-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding: 12px 32px;
  background: #fff;
  border-radius: 0 0 12px 12px;
  box-shadow: 0px 5px 15px -2px rgba(15, 35, 80, 0.08);
}

/* contents */
.main-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1124px;
  margin: 142px auto 0;
  padding: 0 24px;
}
header {
  width: 30%;
  min-width: 340px;
  display: grid;
  gap: 32px;
}
.title-content {
  display: grid;
  gap: 16px;
  margin-top: 12px;
}
.schedule-content {
  font-weight: 700;
}
.schedule-content dl {
  display: flex;
  justify-content: flex-start;
  margin: 0;
  align-items: flex-end;
}
.schedule-content dt {
  font-size: 1.2em;
}
.schedule-content dd {
  margin-left: 1em;
}
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1124px;
  margin: 64px auto 64px;
  padding: 32px 16px;
  border-top: 1px solid #0f2350;
}
.footer-content {
  display: grid;
  gap: 16px;
}
.h-logo {
  width: 105px;
}
main {
  width: 60%;
  margin-left: 5%;
}
.page-content {
  display: grid;
  gap: 48px;
}
article {
  margin-bottom: 32px;
}
.date {
  margin-bottom: 12px;
  position: relative;
  padding: 0 0 0.25em 0;
  border-bottom: 1px dotted #0f2350;
}
.date::before {
  content: "DATE:";
  display: inline-block;
  margin-right: 0.5em;
  font-size: 1rem;
  font-weight: 700;
}
.sp-bg {
  position: fixed;
  inset: 0;
  background: rgba(15, 35, 80, 0.15);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s ease, visibility 0s linear 0.35s;
  z-index: 2;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
}

/* page */
.page-sub-content.inc-item {
  display: grid;
  gap: 32px;
}
.page-header {
  margin-bottom: 32px;
}
.link-item {
  text-align: center;
  border: 1px dotted #6697F2; 
  margin: 24px 0 12px;
}

.page table {
  width: 100%;
  font-size: 1.4rem;
}
.page th,
.page td {
  padding: 12px;
  text-align: left;
}
.page th {
  line-height: 1.4;
  background: rgba(15, 35, 80, 0.18);
}
.page tr td {
  background: rgba(15, 35, 80, 0.05);
}
.page tr td:last-child {
  background: rgba(255,255,255,0.8);
}
.page-sub-item dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5em;
  padding: 12px;
  background: rgba(255,255,255,0.8);
}
.page-sub-item dd {
  margin: 0;
}
.page-sub-item dl div {
  margin-top: 1em;
}
.presentation-info {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.75em;
}
.presentation-item span {
  font-size: 1.2rem;
  display: inline-block;
  line-height: 1;
  padding: 4px 8px;
  margin-bottom: 0.25em;
  border: 1px solid rgba(15, 35, 80, 0.25);
}

@media screen and (max-width: 1024px) {
  .nav-content-inner {
    padding: 12px 24px;
  }
  #nav-title {
    margin-bottom: 8px;
  }
  .navigation {
    font-size: 1.4rem;
  }
  nav ul {
    gap: 1.25em;
  }
}

@media screen and (max-width: 924px) {
  header {
    min-width: 300px;
  }
  #site-title {
    font-size: 2rem;
  }
  .schedule-content {
    font-size: 1.4rem;
  }
}

@media screen and (max-width: 800px) {
  body {
    font-size: 1.5rem;
    line-height: 1.5;
  }
  p {
    line-height: 1.5;
  }
  .main-wrapper ul,
  .main-wrapper ol {
    padding: 0 0 0 1.5em;
  }
  .main-wrapper {
    flex-wrap: wrap;
  }
  header {
    width: 100%;
    margin-bottom: 48px;
    text-align: center;
    padding: 32px 0;
    box-shadow: 0px 5px 15px 0px rgba(15, 35, 80, 0.08);
  }
  #logo {
    max-width: 324px;
    margin: auto;
  }
  nav ul {
    gap: 1em;
  }
  footer {
    flex-wrap: wrap;
    padding: 32px 16px;
  }
  .footer-content {
    width: 100%;
  }
  .footer-content:last-child {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px dotted #0f2350;
  }
  main {
    width: 100%;
    margin-left: 0;
  }
  .schedule-content {
    max-width: 375px;
    margin: auto;
  }
  .page main {
    order: 1;
  }
  .page header {
    order: 2;
    margin: 48px 0 0 0;
  }
}

@media screen and (max-width: 760px) {
  header {
    gap: 24px;
    margin: 0 0 32px 0;
  }
  #logo {
    max-width: 246px;
  }
  .title-content {
    margin: 0;
  }
  .sub-title {
    line-height: 1.3;
  }

  /* nav */
  #sp-btn {
    display: block;
    position: fixed;
    width: 30px;
    height: 24px;
    right: 32px;
    bottom: 16px;
  }
  .navi-icon {
    position: relative;
    width: 30px;
    height: 24px;
    cursor: pointer;
    transition: all .5s;
  }
  .navi-icon span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #fff;
    border-radius: 4px;
  }
  .navi-icon span:nth-of-type(1) {
    top: 0;
  }
  .navi-icon span:nth-of-type(2) {
    top: 11px;
  }
  .navi-icon span:nth-of-type(3) {
    bottom: 0;
  }
  .nav-content {
    top: inherit;
    bottom: 0;
  }
  .nav-content a {
    color: #fff;
  }
  .navigation {
    position: relative;
    padding: 0 12px;
    overflow: hidden;
  }
  .nav-content-inner {
    border-radius: 12px 12px 0 0;
    padding: 0;
    height: 60px;
    overflow: hidden;
    transition: height 0.45s ease;
    align-items: flex-start;
    background: #0f2350;
    color: #fff;
  }
  #nav-title {
    width: 120px;
    font-size: 1.8rem;
    position: absolute;
    left: 36px;
    bottom: 10px;
    margin: 0;
  }
  nav {
    padding: 32px 24px 86px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0s linear 0.45s;
  }
  nav ul {
    display: grid;
    gap: 16px;
    font-size: 1.6rem;
    font-weight: 700;
  }
  nav li {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  /* nav open */
  body.nav-open {
    position: relative;
    overflow-y: hidden;
  }
  body.nav-open nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.2s ease 0.45s, visibility 0s;
  }
  body.nav-open .nav-content-inner {
    height: 450px;
  }
  body.nav-open nav {
    display: block;
  }
  body.nav-open nav li {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.45s;
  }
  body.nav-open .navi-icon {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);

  }
  body.nav-open .navi-icon span:nth-of-type(1) {
    -webkit-transform: translateY(11px) rotate(-45deg);
    transform: translateY(11px) rotate(-45deg);
  }
  body.nav-open .navi-icon span:nth-of-type(2) {
    -webkit-transform: translateY(0) rotate(45deg);
    transform: translateY(0) rotate(45deg);
  }
  body.nav-open .navi-icon span:nth-of-type(3) {
    opacity: 0;
  }
  body.nav-open .sp-bg {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 0.35s ease, visibility 0s;
  }
  .main-wrapper {
    margin: 32px auto 0;
    padding: 0 16px;
  }
  .page-title {
    text-align: center;
  }
}