@charset "UTF-8";

*, *::before, *::after {
  box-sizing: border-box;
}

html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, i, main, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary, time, mark, audio, video {
  background: transparent;
  border: 0;
  margin: 0;
  outline: 0;
  padding: 0;
  vertical-align: baseline;
}

main, article, aside, details, figcaption, figure, img, video, footer, header, hgroup, menu, nav, section {
  display: block;
}

ul, ol, li {
  list-style: none;
}

a {
  color: inherit;
  margin: 0;
  padding: 0;
  text-decoration: none;
}

a:link img, a:visited img, a:hover img, a img {
  border: none;
  text-decoration: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

video, img {
  height: auto;
  max-width: 100%;
}

body {
  background-color: #fff;
  color: #fff;
  font-family: "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W6", "メイリオ",sans-serif;
  font-size: 16px;
  line-height: 1.8;
}

:root {
  --background-white: rgba(255, 255, 255, .16);
  --border-radius-md: clamp(.75rem, .75vw, 1.5rem);
  --border-radius-sm: clamp(.563rem, .56vw, 1.125rem);
  --border-white: 1px solid rgba(255, 255, 255, .5);
  --color-accent: #1e50b4;
  --color-black: #001432;
  --color-link: #0064dc;
  --font-size: clamp(1rem, .25rem + .75vw, 1.75rem);
  --font-size-lg: clamp(1.125rem, -.125rem + 1.25vw, 2.375rem);
  --font-size-md: clamp(1.125rem, 1.13vw, 2.25rem);
  --font-size-small: clamp(.813rem, .25rem + .56vw, 1.375rem);
  --font-size-xl: clamp(1.313rem, 1.31vw, 2.625rem);
  --gradation: linear-gradient(90deg, #1464b4, #7800c8);
  --margin-center: 0 auto;
  --max-width: 1880px;
  --max-width-lg: 2105px;
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
  --space: clamp(1.25rem, 1.25vw, 2.5rem);
  --space-lg: clamp(2.5rem, 2.5vw, 5rem);
  --space-md: clamp(1.563rem, 1.56vw, 3.125rem);
  --space-small: clamp(.938rem, .94vw, 1.875rem);
  --text-margin-bottom: clamp(2.188rem, 2.19vw, 4.375rem);
  --width: 58.75vw;
  --width-lg: 65.78vw;
}

#overview {
  margin-bottom: clamp(3.75rem, 3.75vw, 7.5rem);
}

#program {
  margin: clamp(7.5rem, 7.5vw, 15rem) 0 clamp(9.688rem, 9.69vw, 19.375rem);
}

#notes {
  background-color: #fff;
  padding: clamp(5.625rem, 5.63vw, 11.25rem) 0;
}

#entry-notes {
  background: var(--gradation);
  padding-top: clamp(5.625rem, 5.63vw, 11.25rem);
}

#contact {
  background: var(--gradation);
  padding: clamp(4.438rem, 4.44vw, 8.875rem) 0;
}

.header {
  background-color: #000;
  left: 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 990;
}

.nav-toggle, .nav-toggle__button {
  display: none;
}

.nav-toggle {
  opacity: 0;
  pointer-events: none;
  position: absolute;
}

.header__container {
  display: flex;
  justify-content: space-between;
  padding-left: clamp(1.25rem, .972rem + 1.39vw, 3.75rem);
}

.header__logo {
  align-items: center;
  column-gap: clamp(1.875rem, 1.88vw, 3.75rem);
  display: flex;
}

.bp-logo {
  flex-shrink: 0;
  position: relative;
  width: clamp(6.25rem, .625rem + 5.63vw, 11.875rem);
}

.logo-divider {
  background-color: #ccc;
  height: 1.5em;
  width: 1px;
}

.event-logo {
  width: clamp(24.188rem, 24.19vw, 48.375rem);
}

.nav-links {
  align-items: center;
  display: flex;
}

.nav-links__item a {
  align-items: center;
  display: flex;
  font-size: clamp(1rem, 1vw, 2rem);
  justify-content: center;
  line-height: 1;
  padding: clamp(1.875rem, 1.88vw, 3.75rem);
  position: relative;
  text-align: center;
  transition: opacity .5s;
}

.nav-links__item a:hover {
  opacity: .8;
}

.nav-links__item:last-child {
  margin-right: 20px;
}

.nav-links__item:last-child span {
  background: #fff;
  display: inline-block;
  color: #bb272d;
  padding: 10px 20px;
  font-weight: bold;
  position: relative;
}

.main {
  padding-top: clamp(4.75rem, 4.75vw, 9.5rem);
  position: relative;
}

.main:after {
  background-image: url(bg_main.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  content: "";
  display: block;
  height: 100vh;
  left: 0;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: -1;
}

.section__container {
  margin: var(--margin-center);
  max-width: var(--max-width);
  position: relative;
  width: var(--width);
}

.section__header {
  text-align: center;
}

.section__header.section__header--default h2 {
  font-size: clamp(2.563rem, 2.56vw, 5.125rem);
  line-height: 1.4;
}

.section__header.section__header--default {
  margin-bottom: clamp(1.719rem, 1.72vw, 3.438rem);
}

.section__header p {
  line-height: 1;
}

.section__header-en {
  background: var(--gradation);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  font-size: var(--font-size-lg);
  font-weight: bold;
  text-align: center;
  -webkit-text-fill-color: transparent;
}

.section--main-visual {
  background: url(bg_main_visual.jpg) no-repeat center/cover;
  padding: clamp(4.688rem, 4.69vw, 9.375rem) 0;
}

.title {
  margin: var(--margin-center);
}

.speakers {
  display: flex;
  gap: clamp(1.25rem, -2.5rem + 3.75vw, 5rem);
  justify-content: center;
  margin: clamp(2.188rem, 2.19vw, 4.375rem) auto 0;
  max-width: var(--max-width-lg);
  width: var(--width-lg);
}

.speaker__item {
  width: 25%;
}

.speaker {
  max-width: 100%;
  width: clamp(6.25rem, 4.265rem + 6.62vw, 17.5rem);
}

.speaker.speaker--large {
  max-width: 280px;
  width: 100%;
}

.speaker__photo {
  border-radius: var(--border-radius-sm);
}

.speaker__name {
  font-size: clamp(1rem, 1vw, 2rem);
  text-align: center;
  text-shadow: 1px 1px 5px rgba(0, 30, 80, 1);
}

.speaker_job-title {
  font-size: clamp(.875rem, .25rem + .63vw, 1.5rem);
  line-height: 1.5;
  text-align: center;
  text-shadow: 1px 1px 5px rgba(0, 30, 80, 1);
}

.speaker_job-title span {
  display: inline-block;
}

.event-datetime {
  margin: 0 auto;
  width: 80%;
}

.section__close {
  background-color: #fff0f3;
  color:#bb272d;
  text-align: center;
  padding: 30px 20px;
  font-weight: bold;
  font-size: var(--font-size-lg);
}

.section__lead {
  font-size: var(--font-size-lg);
  line-height: 2;
  margin: clamp(6.875rem, 6.88vw, 13.75rem) auto;
  max-width: var(--max-width-lg);
  width: var(--width-lg);
}

.section__lead-text:not(:last-child) {
  margin-bottom: clamp(2.188rem, 2.19vw, 4.375rem);
}

.section__lead-text span {
  color: #64b4ff;
}

.section__overview {
  border: var(--border-white);
  border-radius: var(--border-radius-md);
}

.section__overview-item {
  align-items: center;
  display: flex;
  padding: clamp(.938rem, .729rem + 1.04vw, 2.813rem);
}

.section__overview-item:nth-child(odd) {
  background-color: rgba(20, 47, 83, .08);
}

.section__overview-item:nth-child(even) {
  background-color: var(--background-white);
}

.section__overview-item-title {
  flex-basis: 14%;
  font-size: clamp(1.125rem, .25rem + .88vw, 2rem);
}

.section__overview-item-text {
  border-left: var(--border-white);
  flex-basis: 86%;
  font-size: var(--font-size);
  padding-left: clamp(1.875rem, 1.88vw, 3.75rem);
}

.section__overview-item-subtext {
  font-size: calc(var(--font-size-small) * .97);
}

.ribon {
  left: 0;
  position: absolute;
  top: 0;
  transform: translate(-12.83%, -9.35%);
  transform-origin: top left;
  width: clamp(6.25rem, -2.563rem + 8.81vw, 15.063rem);
}

.section__campaign-main {
  background: url(bg_campaign.jpg) no-repeat top center / cover;
  border: 3px solid #fff;
  border-top-left-radius: var(--border-radius-md);
  border-top-right-radius: var(--border-radius-md);
  padding: clamp(3.125rem, 3.13vw, 6.25rem) 15px var(--space-lg);
}

.section__header.section__header--campaign {
  margin-bottom: clamp(3.125rem, 1.875rem + 1.25vw, 4.375rem);
  position: relative;
}

.section__header.section__header--campaign:after {
  background-color: #fff;
  bottom: -25px;
  content: "";
  height: clamp(.125rem, .13vw, .25rem);
  left: 0;
  margin: 0 auto;
  position: absolute;
  right: 0;
  width: clamp(3.75rem, 3.75vw, 7.5rem);
}

.section__header.section__header--campaign span {
  display: block;
  line-height: 1.3;
}

.section__header.section__header--campaign span:first-child {
  font-size: clamp(2.125rem, 2.13vw, 4.25rem);
}

.section__header.section__header--campaign span:last-child {
  font-size: var(--font-size-xl);
}

.section__campaign-text {
  font-size: var(--font-size);
  text-align: center;
}

.section__campaign-text span {
  display: inline-block;
}

.section__campaign-notes {
  background-color: #fff;
  border-bottom-left-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
  color: var(--color-black);
  font-size: clamp(.75rem, .75vw, 1.5rem);
  padding: var(--space);
}

.section__campaign-notes-text {
  position: relative;
}

.section__campaign-notes-inner {
  margin-bottom: clamp(.844rem, .84vw, 1.688rem);
  padding-left: clamp(.844rem, .84vw, 1.688rem);
}

.section__campaign-notes-text:has(span) {
  padding-left: clamp(.844rem, .84vw, 1.688rem);
}

.section__campaign-notes-text span {
  left: 0;
  position: absolute;
  top: 0;
}

.section__program-item {
  border: var(--border-white);
  border-radius: var(--border-radius-md);
  display: flex;
  margin-bottom: clamp(1.875rem, 1.88vw, 3.75rem);
  overflow: hidden;
}

.program-time {
  align-items: center;
  background: var(--gradation);
  display: flex;
  flex-basis: 13%;
  flex-direction: column;
  line-height: 1.4;
  padding: var(--space) 15px 15px 15px;
}

.program-time .end, .program-time .start {
  font-size: clamp(1.5rem, -.375rem + 1.88vw, 3.375rem);
}

.program-content {
  background-color: rgba(20, 47, 83, .08);
  flex-basis: 87%;
}

.program-content__overview {
  padding: var(--space-md) var(--space);
}

.program-content__overview-text {
  font-size: var(--font-size);
  padding-top: var(--space);
}

.program-content__title {
  border-bottom: var(--border-white);
  font-size: var(--font-size-xl);
  line-height: 1.6;
  padding-bottom: var(--space);
}

.program-content__title span {
  display: block;
}

.program-content__speaker {
  background-color: var(--background-white);
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) var(--space);
}

.program-content__speaker .speaker {
  flex-shrink: 0;
}

.job-title {
  font-size: clamp(.875rem, .25rem + .63vw, 1.5rem);
  line-height: 1.5;
}

.name {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-small);
}

.name span {
  font-size: var(--font-size);
  margin-left: clamp(.313rem, .31vw, .625rem);
}

.profile {
  border-top: var(--border-white);
  font-size: clamp(.938rem, .25rem + .69vw, 1.625rem);
  padding-top: var(--space-small);
}

.section__notes:first-child {
  margin-bottom: clamp(3.563rem, 3.56vw, 7.125rem);
}

.section__notes-header {
  color: var(--color-black);
  column-gap: clamp(.375rem, -.375rem + .75vw, 1.125rem);
  display: flex;
  font-size: var(--font-size-md);
  font-weight: bold;
  margin-bottom: var(--text-margin-bottom);
}

.section__notes-header .square {
  background: var(--gradation);
  display: block;
  flex-shrink: 0;
  height: var(--font-size-md);
  margin-top: clamp(.5rem, .5vw, 1rem);
  width: var(--font-size-md);
}

.section__notes-text {
  color: var(--color-black);
  font-size: var(--font-size);
  margin-bottom: var(--text-margin-bottom);
}

.section__notes-text.section__notes-text--small {
  font-size: var(--font-size-small);
}

.section__notes-text.section__notes-text--mb0 {
  margin-bottom: 0;
}

.section__notes-list li {
  color: var(--color-black);
  column-gap: clamp(.625rem, .63vw, 1.25rem);
  display: flex;
  font-size: var(--font-size);
  margin-bottom: var(--text-margin-bottom);
  ;
}

.number {
  color: var(--color-accent);
  flex-shrink: 0;
  font-weight: bold;
}

.text-link {
  color: var(--color-link);
  text-decoration: underline;
  transition: opacity .5s;
  word-break: break-all;
}

.text-link:hover {
  opacity: .8;
}

.section__entry-notes {
  border: 1px solid #fff;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size);
  padding: var(--space);
}

.section__header.section__header--contact {
  margin-bottom: var(--text-margin-bottom);
}

.section__title--contact {
  column-gap: var(--text-margin-bottom);
  display: flex;
  flex-wrap: wrap;
  font-size: clamp(1.938rem, 1.94vw, 3.875rem);
  justify-content: center;
  line-height: 1.4;
}

.button.button--contact {
  background-color: #fff;
  border-radius: 9999rem;
  color: var(--color-accent);
  display: block;
  font-size: var(--font-size-md);
  font-weight: bold;
  margin: var(--margin-center);
  max-width: 100%;
  padding: clamp(1.688rem, .563rem + 1.13vw, 2.813rem) 40px;
  position: relative;
  text-align: center;
  transition: opacity .5s;
  width: clamp(21.875rem, 21.88vw, 43.75rem);
}

.button.button--contact:hover {
  opacity: .8;
}

.button.button--contact:after {
  background: url(icon_arrow.png) no-repeat center/contain;
  content: "";
  height: clamp(.969rem, .97vw, 1.938rem);
  position: absolute;
  right: 6.4%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(.875rem, .88vw, 1.75rem);
}

.footer {
  background-color: #000;
}

.copyright {
  font-size: var(--font-size-small);
  margin: var(--margin-center);
  max-width: var(--max-width);
  padding: var(--space-lg) 0;
  text-align: center;
  width: var(--width);
}

.sp-entry {
  display: none;
}

@media screen and (max-width: 1300.9px) {
  .nav-toggle__button {
    align-items: center;
    background-color: rgba(255, 255, 255, .08);
    cursor: pointer;
    display: inline-flex;
    flex-direction: column;
    gap: 8px;
    height: 56px;
    justify-content: center;
    position: fixed;
    right: 0;
    top: 0;
    width: 56px;
    z-index: 999;
  }

  .nav-toggle__button span {
    background-color: #fff;
    border-radius: 999px;
    height: 2px;
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: transform .3s ease, opacity .3s ease;
    width: 26px;
  }

  .header__container {
    padding-bottom: 15px;
    padding-top: 15px;
  }

  .header__nav {
    background: var(--color-black);
    height: 100dvh;
    max-width: 350px;
    position: fixed;
    right: -200%;
    top: 0;
    transition: transform .5s ease, right .5s ease;
    width: 100%;
  }

  .nav-links {
    flex-direction: column;
    height: 100%;
    justify-content: center;
  }

  .nav-links__item {
    width: 100%;
  }

  .nav-toggle:checked ~ .header__container .header__nav {
    right: 0;
  }

  .nav-toggle__button span:nth-child(1) {
    transform: translate(-50%, -50%) translateY(-8px);
  }

  .nav-toggle__button span:nth-child(2) {
    transform: translate(-50%, -50%);
  }

  .nav-toggle__button span:nth-child(3) {
    transform: translate(-50%, -50%) translateY(8px);
  }

  .nav-toggle:checked + .nav-toggle__button span:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle__button span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked + .nav-toggle__button span:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .nav-links__item:last-child {
    display: none;
  }
}

@media screen and (max-width: 1250px) {
  .section__campaign-text span {
    display: inline;
  }
}

@media screen and (max-width: 1200.9px) {
  .main {
    padding-top: 56px;
  }

  .section__campaign-text span {
    display: inline;
  }

  .sp-entry {
    background-color: rgba(0, 30, 80, .5);
    bottom: 0;
    display: block;
    left: 0;
    margin: var(--margin-center);
    padding: 15px 0;
    position: fixed;
    text-align: center;
    width: 100%;
  }

  .sp-entry__button {
    background: var(--gradation);
    border-radius: 9999rem;
    color: #fff;
    display: inline-block;
    font-size: 25px;
    font-weight: bold;
    line-height: 1.3;
    padding: 10px 40px;
    position: relative;
    text-align: center;
    transition: opacity .5s;
    width: min(480px, 90%);
  }

  .sp-entry__button:after {
    background: url(icon_arrow_w.png) no-repeat center/contain;
    content: "";
    height: 18px;
    position: absolute;
    right: 6.4%;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
  }
}

@media screen and (max-width: 1044px) {
  :root {
    --max-width: 940px;
    --max-width-lg: 940px;
    --width: 92%;
    --width-lg: 92%;
  }
}

@media screen and (max-width: 750.9px) {
  .event-logo, .logo-divider {
    display: none;
  }
}

@media screen and (max-width: 600.9px) {
  .section__program-item {
    flex-direction: column;
  }

  .program-time {
    column-gap: 15px;
    flex-direction: row;
  }

  .program-time span:nth-child(2) {
    margin-top: 6px;
    transform: rotate(90deg);
  }

  .event-datetime {
    width: 95%;
  }

  .section__overview-item {
    flex-direction: column;
  }

  .section__overview-item-text {
    border-left: none;
    padding-left: 0;
  }

  .speakers {
    flex-wrap: wrap;
  }

  .speakers__item {
    width: 40%;
  }

  .section__campaign-text {
    text-align: left;
  }
}

@media screen and (max-width: 375.9px) {
  .program-content__speaker {
    flex-direction: column;
  }
}