@charset "UTF-8";
/*! destyle.css v2.0.2 | MIT License | https://github.com/nicolas-cusan/destyle.css */
/* Reset box-model and set borders */
/* ============================================ */
*,
::before,
::after {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  border-width: 0;
  border-style: solid;
}

/* Document */
/* ============================================ */
/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 * 3. Remove gray overlay on links for iOS.
 */
html {
  line-height: 1.15;
  /* 1 */
  -webkit-text-size-adjust: 100%;
  /* 2 */
  -webkit-tap-highlight-color: transparent;
  /* 3*/
}

/* Sections */
/* ============================================ */
/**
 * Remove the margin in all browsers.
 */
body {
  margin: 0;
}

/**
 * Render the `main` element consistently in IE.
 */
main {
  display: block;
}

/* Vertical rhythm */
/* ============================================ */
p,
table,
blockquote,
address,
pre,
iframe,
form,
figure,
dl {
  margin: 0;
}

/* Headings */
/* ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

/* Lists (enumeration) */
/* ============================================ */
ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Lists (definition) */
/* ============================================ */
dt {
  font-weight: bold;
}

dd {
  margin-left: 0;
}

/* Grouping content */
/* ============================================ */
/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */
hr {
  clear: both;
  /* 1 */
  overflow: visible;
  -webkit-box-sizing: content-box;
          box-sizing: content-box;
  /* 1 */
  height: 0;
  margin: 0;
  color: inherit;
  /* 2 */
  border-top-width: 1px;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
pre {
  font-family: monospace, monospace;
  /* 1 */
  font-size: inherit;
  /* 2 */
}

address {
  font-style: inherit;
}

/* Text-level semantics */
/* ============================================ */
/**
 * Remove the gray background on active links in IE 10.
 */
a {
  text-decoration: none;
  color: inherit;
  background-color: transparent;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */
abbr[title] {
  text-decoration: underline;
  /* 2 */
  -webkit-text-decoration: underline dotted;
          text-decoration: underline dotted;
  /* 2 */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */
b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */
code,
kbd,
samp {
  font-family: monospace, monospace;
  /* 1 */
  font-size: inherit;
  /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */
small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */
sub,
sup {
  position: relative;
  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content */
/* ============================================ */
/**
 * Prevent vertical alignment issues.
 */
img,
embed,
object,
iframe {
  vertical-align: bottom;
  max-width: 100%;
}

/* Forms */
/* ============================================ */
/**
 * Reset form fields to make them styleable
 */
button,
input,
optgroup,
select,
textarea {
  margin: 0;
  padding: 0;
  font: inherit;
  text-align: inherit;
  vertical-align: middle;
  color: inherit;
  border-radius: 0;
  outline: 0;
  background: transparent;
  -webkit-appearance: none;
  -moz-appearance: none;
       appearance: none;
}

/**
 * Reset radio and checkbox appearance to preserve their look in iOS.
 */
[type=checkbox] {
  -webkit-appearance: checkbox;
  -moz-appearance: checkbox;
       appearance: checkbox;
}

[type=radio] {
  -webkit-appearance: radio;
  -moz-appearance: radio;
       appearance: radio;
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */
button,
input {
  /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */
button,
select {
  /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */
button,
[type=button],
[type=reset],
[type=submit] {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
       appearance: none;
}

button[disabled],
[type=button][disabled],
[type=reset][disabled],
[type=submit][disabled] {
  cursor: default;
}

/**
 * Remove the inner border and padding in Firefox.
 */
button::-moz-focus-inner,
[type=button]::-moz-focus-inner,
[type=reset]::-moz-focus-inner,
[type=submit]::-moz-focus-inner {
  padding: 0;
  border-style: none;
}

/**
 * Restore the focus styles unset by the previous rule.
 */
button:-moz-focusring,
[type=button]:-moz-focusring,
[type=reset]:-moz-focusring,
[type=submit]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Remove arrow in IE10 & IE11
 */
select::-ms-expand {
  display: none;
}

/**
 * Remove padding
 */
option {
  padding: 0;
}

/**
 * Reset to invisible
 */
fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */
legend {
  /* 2 */
  display: table;
  /* 1 */
  max-width: 100%;
  /* 1 */
  padding: 0;
  /* 3 */
  white-space: normal;
  color: inherit;
  /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */
progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */
textarea {
  overflow: auto;
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */
[type=number]::-webkit-inner-spin-button,
[type=number]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the outline style in Safari.
 */
[type=search] {
  outline-offset: -2px;
  /* 1 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */
[type=search]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */
::-webkit-file-upload-button {
  /* 1 */
  font: inherit;
  -webkit-appearance: button;
  /* 2 */
}

/**
 * Clickable labels
 */
label[for] {
  cursor: pointer;
}

/* Interactive */
/* ============================================ */
/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */
details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */
summary {
  display: list-item;
}

/*
 * Remove outline for editable content.
 */
[contenteditable] {
  outline: none;
}

/* Table */
/* ============================================ */
table {
  border-spacing: 0;
  border-collapse: collapse;
}

caption {
  text-align: left;
}

td,
th {
  padding: 0;
  vertical-align: top;
}

th {
  font-weight: bold;
  text-align: left;
}

/* Misc */
/* ============================================ */
/**
 * Add the correct display in IE 10+.
 */
template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */
[hidden] {
  display: none;
}

.flash {
  overflow: hidden;
  position: relative;
}
.flash:before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -10%;
  left: -20%;
  width: 30rem;
  height: 100%;
  -webkit-transform: scale(2) rotate(20deg);
          transform: scale(2) rotate(20deg);
  background-image: linear-gradient(100deg, rgba(255, 255, 255, 0) 10%, rgba(255, 255, 255, 0.5) 100%, rgba(255, 255, 255, 0) 0%);
  -webkit-animation-name: shiny;
          animation-name: shiny;
  -webkit-animation-duration: 0.5s;
          animation-duration: 0.5s;
  -webkit-animation-timing-function: linear;
          animation-timing-function: linear;
}

@-webkit-keyframes shiny {
  0% {
    left: -20%;
  }
  100% {
    left: 120%;
  }
}

@keyframes shiny {
  0% {
    left: -20%;
  }
  100% {
    left: 120%;
  }
}
@-webkit-keyframes bound {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  5% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  10% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-8px);
            transform: translateY(-8px);
  }
  25% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
  }
  60% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  80% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@keyframes bound {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  5% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  10% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-8px);
            transform: translateY(-8px);
  }
  25% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12px);
            transform: translateY(-12px);
  }
  60% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  80% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@-webkit-keyframes boundTop {
  0% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  5% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  10% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  20% {
    -webkit-transform: translateY(-55%);
            transform: translateY(-55%);
  }
  25% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  40% {
    -webkit-transform: translateY(-62%);
            transform: translateY(-62%);
  }
  60% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  80% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  100% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
}
@keyframes boundTop {
  0% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  5% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  10% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  20% {
    -webkit-transform: translateY(-55%);
            transform: translateY(-55%);
  }
  25% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  40% {
    -webkit-transform: translateY(-62%);
            transform: translateY(-62%);
  }
  60% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  80% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
  100% {
    -webkit-transform: translateY(-50%);
            transform: translateY(-50%);
  }
}
@-webkit-keyframes boundTopSp {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  5% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  10% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-8rem);
            transform: translateY(-8rem);
  }
  25% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12rem);
            transform: translateY(-12rem);
  }
  60% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  80% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@keyframes boundTopSp {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  5% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  10% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  20% {
    -webkit-transform: translateY(-8rem);
            transform: translateY(-8rem);
  }
  25% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  40% {
    -webkit-transform: translateY(-12rem);
            transform: translateY(-12rem);
  }
  60% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  80% {
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@-webkit-keyframes swing {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  25% {
    -webkit-transform: rotate(8deg);
            transform: rotate(8deg);
  }
  50% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  75% {
    -webkit-transform: rotate(-8deg);
            transform: rotate(-8deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
}
@keyframes swing {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  25% {
    -webkit-transform: rotate(8deg);
            transform: rotate(8deg);
  }
  50% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  75% {
    -webkit-transform: rotate(-8deg);
            transform: rotate(-8deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
}
html {
  font-size: clamp(3.125%, 0.1290322581vh, 6.25%);
  scroll-behavior: smooth;
}

a,
button {
  cursor: pointer;
  display: block;
}

body {
  position: relative;
}
body:before {
  content: "";
  background-repeat: no-repeat;
  background-size: cover;
  display: inline-block;
  position: absolute;
  width: 100%;
  height: 100vh;
  z-index: -1;
}
body.top-page:before {
  background-image: url(../img/bg_top.png);
}
body.page-appli:before {
  background-image: url(../img/bg_appli-top.png);
}
body.page-webai:before {
  background-image: url(../img/bg_webai-top.png);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

/* videoタグをカスタマイズ */
video::-webkit-media-controls-fullscreen-button {
  display: none;
}

video::-webkit-media-controls-enclosure {
  overflow: hidden;
}

video::-webkit-media-controls-panel {
  width: calc(100% + 35px); /* Adjust as needed */
}

.main-inner {
  max-width: 1160rem;
  margin: auto;
  padding: 0 20rem 20rem;
  padding-bottom: 20rem;
}

.link-frame {
  -webkit-filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
          filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
  padding: 12rem;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  display: block;
  -webkit-transition: background 0s ease;
  transition: background 0s ease;
}
.link-frame:hover {
  -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
          filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
}
.link-frame.frame-gold {
  background: linear-gradient(135deg, #ffe44b 10%, #fedd41 28%, #fbcb28 58%, #f9b406 90%);
}
.link-frame.frame-gold:hover {
  background: #f9b406;
}
.link-frame.frame-yellow {
  background-color: #ffee4d;
  padding: 5rem;
  width: 750rem;
  margin: auto;
}
.link-frame.frame-yellow.frame-yellow--pink:hover {
  background: #ffcafa;
}
.link-frame.frame-yellow:hover {
  background: #a4eeff;
}
.link-frame.frame-pink {
  background: linear-gradient(135deg, #ffaedf 10%, #ffa4d7 22%, #ff8bc3 43%, #ff62a3 69%, #ff3d87 90%);
}
.link-frame.frame-pink:hover {
  background: #ff3d87;
}
.link-frame.frame-blue {
  background: linear-gradient(135deg, #9cdaff 10%, #95d0fb 18%, #85b7f1 30%, #6b8de1 47%, #4653ca 66%, #180bae 87%, #10a 90%);
}
.link-frame.frame-blue:hover {
  background: #1100aa;
}
.link-frame.frame-pink--light {
  background: linear-gradient(135deg, #ffaedf 10%, #ffa4db 32%, #ff8bd1 69%, #ff7acb 90%);
}
.link-frame.frame-pink--light:hover {
  background: #ff7acb;
}
.link-frame.frame-blue--light {
  background: linear-gradient(135deg, #9cdaff 15%, #92d6fe 35%, #79ccfe 67%, #64c4fe 90%);
}
.link-frame.frame-blue--light:hover {
  background: #64c4fe;
}
.link-frame.frame-inner {
  background: #c5a1ff;
}
.link-frame.frame-inner:hover {
  background: #6823e9;
}
.link-frame.frame-inner--webai {
  background: #abed8c;
}
.link-frame.frame-inner--webai:hover {
  background: #09af00;
}
.link-frame img {
  z-index: 1;
}

.first-introduction {
  width: 800rem;
  margin: auto;
}

.howto {
  -webkit-filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
          filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
  border-radius: 16rem;
  padding: 0 70rem 15rem;
  position: relative;
  -webkit-transition: background 0s ease;
  transition: background 0s ease;
}
.howto:hover {
  -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
          filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
}
.howto.howto--pink {
  background: #ffdcf4;
}
.howto.howto--pink:hover {
  background: #ffcafa;
}
.howto.howto--blue {
  background: #caebfc;
}
.howto.howto--blue:hover {
  background: #a4eeff;
}
.howto:before {
  content: "";
  background-repeat: no-repeat;
  background-size: 100%;
  display: inline-block;
  position: absolute;
  width: 100rem;
  height: 100rem;
  bottom: 15rem;
  left: 15rem;
  pointer-events: none;
}

.shadow-button {
  -webkit-transition: 0.4s -webkit-transform, 0.4s -webkit-filter;
  transition: 0.4s -webkit-transform, 0.4s -webkit-filter;
  transition: 0.4s transform, 0.4s filter;
  transition: 0.4s transform, 0.4s filter, 0.4s -webkit-transform, 0.4s -webkit-filter;
  -webkit-filter: drop-shadow(0 4rem 0 rgba(0, 0, 0, 0.5));
          filter: drop-shadow(0 4rem 0 rgba(0, 0, 0, 0.5));
}

.present-button {
  position: relative;
  -webkit-filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
          filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
  border-radius: 10rem;
  border: solid 4rem white;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  padding: 10rem 30rem;
  -webkit-transition: background 0s ease;
  transition: background 0s ease;
}
.present-button:hover {
  -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
          filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
}
.present-button img {
  width: 892rem;
}
.present-button.present-or {
  background-color: #fe6f47;
}
.present-button.present-or:hover {
  background: #ff5033;
}
.present-button.present-or .present-button__arrow span {
  background-color: #fe6f47;
}
.present-button.present-or .present-button__arrow:hover span {
  background-color: #ff5033;
}

.present-button__arrow {
  background-color: white;
  width: 36rem;
  height: 36rem;
  -ms-flex-negative: 0;
      flex-shrink: 0;
  border-radius: 50%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
  position: absolute;
  padding-right: 11rem;
  right: 10rem;
  top: 50%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
}
.present-button__arrow span {
  display: block;
  width: 12rem;
  height: 14rem;
  clip-path: polygon(100% 50%, 0 0, 0 100%);
}

.present-button__character {
  position: absolute;
  right: 58rem;
  top: 50%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  width: 122rem;
  height: 122rem;
  -webkit-animation: boundTop 3.3s infinite ease-in-out;
          animation: boundTop 3.3s infinite ease-in-out;
}

.challange-button {
  position: relative;
  -webkit-filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
          filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
  border-radius: 10rem;
  border: solid 4rem white;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  padding: 4rem 30rem 9rem;
  -webkit-transition: background 0s ease;
  transition: background 0s ease;
}
.challange-button:hover {
  -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
          filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
}
.challange-button.challange-appli {
  background: linear-gradient(-45deg, rgb(175, 113, 255) 0%, rgb(104, 35, 233) 100%);
}
.challange-button.challange-appli:hover {
  background: #6823e9;
}
.challange-button.challange-webai {
  background: linear-gradient(-45deg, rgb(88, 224, 88) 0%, rgb(9, 175, 0) 100%);
}
.challange-button.challange-webai:hover {
  background: #09af00;
}

.two-column {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr 40rem 1fr;
  grid-template-columns: repeat(2, 1fr);
  -webkit-column-gap: 40rem;
     -moz-column-gap: 40rem;
          column-gap: 40rem;
  margin-top: 30rem;
  margin-bottom: 36rem;
}

.inner-column {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr 12rem 1fr;
  grid-template-columns: repeat(2, 1fr);
  gap: 12rem;
  margin-top: 12rem;
}
.inner-column .link-frame {
  padding: 4rem;
}

.to-top {
  position: absolute;
  bottom: 20rem;
  right: 20rem;
  display: none;
}

.lower-title {
  margin: 10rem auto 0;
  text-align: center;
  position: relative;
  display: table;
}
.lower-title:before {
  content: "";
  display: inline-block;
  position: absolute;
  width: 100%;
  height: 75%;
  background-color: white;
  -webkit-filter: blur(9rem);
          filter: blur(9rem);
  z-index: -1;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  border-radius: 75%;
}
.lower-title img {
  height: 45rem;
}
.lower-title + .two-column {
  margin-top: 14rem;
  margin-bottom: 10rem;
}
.lower-title + .two-column .two-column__item:nth-child(1) .howto:before {
  background-image: url("../img/image_howto-character_1.png");
  -webkit-animation: bound 3s infinite ease-in-out;
          animation: bound 3s infinite ease-in-out;
}
.lower-title + .two-column .two-column__item:nth-child(2) .howto:before {
  background-image: url("../img/image_howto-character_2.png");
  -webkit-animation: swing 3.3s infinite ease-in-out alternate;
          animation: swing 3.3s infinite ease-in-out alternate;
  -webkit-transform-origin: bottom center;
          transform-origin: bottom center;
}
.lower-title.lesson-title + .two-column {
  margin-top: 10rem;
}

/* モーダル */
.modal {
  display: none;
}

.modal .modal-movie {
  width: 100%;
  aspect-ratio: 900/506;
  height: auto;
}

.modal .overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  background: rgba(0, 0, 0, 0.6);
  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;
  z-index: 9999;
}

.modal .modal-content {
  width: 1080rem;
  max-width: 1080rem;
  height: auto;
  max-height: 90vh;
  padding: 60rem;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  position: relative;
  background-color: white;
}
.modal .modal-content.taiken-top {
  background-color: #fcea9d;
}
.modal .modal-content.appli-top {
  background-color: #ebe1ff;
}
.modal .modal-content.webai-top {
  background-color: #def7cd;
}
.modal .modal-content.programming-lesson {
  background-color: #ffdcf4;
}
.modal .modal-content.webai-lesson {
  background-color: #ffdcf4;
  padding: 40rem;
}

.modal .modal-content.vertical {
  /* width: 498px; */
  width: 420px;
  /* max-width: 498px; */
  max-width: 420px;
  /* height: 775px; */
  height: 675px;
  padding: 16px 6% 20px;
}

.modal .modal-content.vertical .modal-movie {
  aspect-ratio: 378/672;
  width: 100%;
  /* height: 672px; */
  margin: 0 auto;
  min-width: 250px;
  /* max-height: 672px; */
  max-height: 500px;
  max-width: 281px;
}

.modal .modal-content__inner {
  /* overflow: hidden; */
  height: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}

.modal .modal-content.vertical .modal-content__inner {
  max-height: 90vh;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.modal .close-button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  margin: auto;
  width: 60rem;
  position: absolute;
  top: -30rem;
  right: -30rem;
  z-index: 0;
}

.modal .modal-content.vertical .close-button {
  margin: 16px auto 0;
}

.modal .close-icon {
  position: absolute;
  top: -36px;
  right: -36px;
  width: 72px;
  -webkit-filter: drop-shadow(4px 4px 0 rgb(255, 255, 255));
          filter: drop-shadow(4px 4px 0 rgb(255, 255, 255));
  -webkit-transition: opacity 0.4s, -webkit-transform 0.4s, -webkit-filter 0.4s;
  transition: opacity 0.4s, -webkit-transform 0.4s, -webkit-filter 0.4s;
  transition: opacity 0.4s, transform 0.4s, filter 0.4s;
  transition: opacity 0.4s, transform 0.4s, filter 0.4s, -webkit-transform 0.4s, -webkit-filter 0.4s;
}

.modal .close-icon:hover {
  opacity: 0.7;
  -webkit-transform: translate(4px, 4px);
          transform: translate(4px, 4px);
  -webkit-filter: drop-shadow(0 0 0 rgb(255, 255, 255));
          filter: drop-shadow(0 0 0 rgb(255, 255, 255));
}

.modal.is-open {
  display: block;
}

.modal .slider-wrap {
  overflow: hidden;
}

.modal[aria-hidden=false] .overlay {
  -webkit-animation: mmfadeIn 0.2s cubic-bezier(0, 0, 0.2, 1);
          animation: mmfadeIn 0.2s cubic-bezier(0, 0, 0.2, 1);
}

.modal[aria-hidden=false] .modal-content {
  -webkit-animation: mmslideIn 0.2s cubic-bezier(0, 0, 0.2, 1);
          animation: mmslideIn 0.2s cubic-bezier(0, 0, 0.2, 1);
}

.modal[aria-hidden=true] .overlay {
  -webkit-animation: mmfadeOut 0.2s cubic-bezier(0, 0, 0.2, 1);
          animation: mmfadeOut 0.2s cubic-bezier(0, 0, 0.2, 1);
}

.modal[aria-hidden=true] .modal-content {
  -webkit-animation: mmslideOut 0.2s cubic-bezier(0, 0, 0.2, 1);
          animation: mmslideOut 0.2s cubic-bezier(0, 0, 0.2, 1);
}

.modal .modal-content,
.modal .overlay {
  will-change: transform;
}

.modal .swiper-button-next,
.modal .swiper-button-prev {
  width: 68rem;
  height: 68rem;
  border-radius: 50%;
  color: transparent;
  background-image: url("../img/image_slide-arrow.png");
  background-size: contain;
  background-repeat: no-repeat;
  -webkit-filter: none;
          filter: none;
  -webkit-box-shadow: 0 4rem 0 0 rgba(0, 0, 0, 0.5);
          box-shadow: 0 4rem 0 0 rgba(0, 0, 0, 0.5);
  -webkit-transition: 0.4s -webkit-transform, 0.4s -webkit-box-shadow;
  transition: 0.4s -webkit-transform, 0.4s -webkit-box-shadow;
  transition: 0.4s transform, 0.4s box-shadow;
  transition: 0.4s transform, 0.4s box-shadow, 0.4s -webkit-transform, 0.4s -webkit-box-shadow;
}
.modal .swiper-button-next:after,
.modal .swiper-button-prev:after {
  content: none;
  font-size: 0;
  display: block;
}

.modal .swiper-button-next {
  right: -34rem;
}

.modal .swiper-button-prev {
  left: -34rem;
  -webkit-transform: scale(-1, 1);
          transform: scale(-1, 1);
}

.modal .swiper-horizontal > .swiper-pagination-bullets,
.modal .swiper-pagination-bullets.swiper-pagination-horizontal,
.modal .swiper-pagination-custom,
.modal .swiper-pagination-fraction {
  bottom: 28rem;
}
.modal .swiper-horizontal > .swiper-pagination-bullets .swiper-pagination-bullet,
.modal .swiper-pagination-horizontal.swiper-pagination-bullets .swiper-pagination-bullet {
  margin: 0 6rem;
}

.modal .swiper-pagination-bullet {
  width: 12rem;
  height: 12rem;
  border-radius: 0;
  opacity: 1;
  background-color: #999999;
}

.modal .swiper-pagination-bullet-active {
  background-color: #ff7b03;
}

.lesson-content__title {
  width: 314rem;
  margin: 0 auto 20rem;
}

.lesson-column {
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1fr 25rem 1fr 25rem 1fr;
  grid-template-columns: repeat(3, 1fr);
  gap: 25rem;
  margin-bottom: 20rem;
  position: relative;
}
.lesson-column:before {
  content: "";
  background-image: url("../img/image_webai-programming_character.png");
  background-repeat: no-repeat;
  background-size: 100%;
  display: inline-block;
  position: absolute;
  width: 281rem;
  height: 142rem;
  top: -143rem;
  right: 20rem;
}

.lesson-column__image {
  -webkit-filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
          filter: drop-shadow(0 0 6rem rgba(0, 0, 0, 0.4));
  border: solid 2rem #ef54c0;
  border-radius: 16rem;
  padding: 0 21rem 20rem;
  background-color: white;
  -webkit-transition: background 0s ease;
  transition: background 0s ease;
}
.lesson-column__image:hover {
  -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
          filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0));
  background-color: #ffcafa;
}

/**************************\
  Demo Animation Style
\**************************/
@-webkit-keyframes mmfadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes mmfadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@-webkit-keyframes mmfadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}
@keyframes mmfadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}
@-webkit-keyframes mmslideIn {
  from {
    -webkit-transform: translateY(15%);
            transform: translateY(15%);
  }
  to {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@keyframes mmslideIn {
  from {
    -webkit-transform: translateY(15%);
            transform: translateY(15%);
  }
  to {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@-webkit-keyframes mmslideOut {
  from {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  to {
    -webkit-transform: translateY(-10%);
            transform: translateY(-10%);
  }
}
@keyframes mmslideOut {
  from {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  to {
    -webkit-transform: translateY(-10%);
            transform: translateY(-10%);
  }
}
.content-header {
  position: relative;
  margin-bottom: 30rem;
}
.content-header:not(.lower-top__content) .content-title {
  padding-top: 10rem;
}
.content-header.lower-top__content {
  width: 100%;
  height: 90rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}
.content-header.lower-top__content--appli {
  background-image: -webkit-gradient(linear, left top, right top, from(#af71ff), to(#6823e9));
  background-image: linear-gradient(to right, #af71ff, #6823e9);
}
.content-header.lower-top__content--webai {
  background-image: -webkit-gradient(linear, left top, right top, from(#ffd600), to(#36ce00));
  background-image: linear-gradient(to right, #ffd600, #36ce00);
}

.back-button {
  display: inline-block;
  position: absolute;
  top: 20rem;
  left: 16rem;
  z-index: 1;
  width: 100rem;
  height: 50rem;
}
.back-button.top-back {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  -webkit-transition: opacity 0.3s ease-in-out;
  transition: opacity 0.3s ease-in-out;
}
.back-button.top-back.active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.content-title {
  position: relative;
  pointer-events: none;
  text-align: center;
  margin: auto;
  max-width: 1018rem;
}

.header-compact, .location-breads {
  position: relative;
  z-index: 1;
}

.location-breads {
  font-size: 14rem;
}
.slick-dots {
  bottom: 0;
  display: -webkit-box !important;
  display: -ms-flexbox !important;
  display: flex !important;
  width: calc(100% - 28rem);
  margin-left: 14rem;
}
.slick-dots li {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  width: 100%;
  height: 4rem;
  margin: 0;
  border-radius: 0;
}
.slick-dots li.slick-active button {
  background-color: #000;
}
.slick-dots li button {
  width: 100%;
  height: 100%;
  padding: 0;
  -webkit-transition: 0.2s;
  transition: 0.2s;
  background-color: #ededed;
}
.slick-dots li button::before {
  display: none;
}

.slick-prev::before, .slick-next::before {
  display: block;
  width: 1em;
  height: 1em;
  font-size: 14rem;
  content: "";
  color: #dc1e37;
  border: 2rem solid;
  border-top: 0;
  border-left: 0;
}

.slick-prev {
  top: auto;
  right: 71rem;
  bottom: -33rem;
  left: auto;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
}
.slick-prev::before {
  -webkit-transform: rotate(135deg);
          transform: rotate(135deg);
}

.slick-next {
  top: auto;
  right: 14rem;
  bottom: -33rem;
  left: auto;
  -webkit-transform: translateY(100%);
          transform: translateY(100%);
}
.slick-next::before {
  -webkit-transform: rotate(-45deg);
          transform: rotate(-45deg);
}

.slick-dotted.slick-slider {
  margin-bottom: 0;
}

@media (min-width: 980px){
  .pc_none {
    display: none;
  }
}

@media screen and (max-width: 1280px){
  html {
    font-size: calc(clamp(3.125%, 0.0847457627vw, 6.25%) * 0.9);
  }
}

@media screen and (max-width: 1080px){
  .modal .modal-content {
    width: 900rem;
  }
}

@media (max-width: 980px){
  .sp_none {
    display: none;
  }
  .slick-dots {
    width: 100%;
    margin-left: 0;
  }
  .slick-dots li {
    height: 8rem;
  }
}

@media screen and (max-height: 820px) and (orientation: landscape){
  html {
    font-size: calc(clamp(3.125%, 0.1290322581vh, 6.25%) * 0.85);
  }
}

@media (max-width: 768px){
  html {
    font-size: 0.1333333333vw;
  }
  body:before {
    height: 100%;
  }
  body.lower-top .main-inner {
    padding-bottom: 140rem;
  }
  .main-inner {
    padding: 0 40rem 120rem;
  }
  .main-inner img {
    width: auto;
  }
  .link-frame {
    -webkit-filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0.4));
            filter: drop-shadow(0 0 12rem rgba(0, 0, 0, 0.4));
  }
  .link-frame.frame-yellow {
    width: 490rem;
    padding: 10rem;
  }
  .first-introduction {
    width: 646rem;
  }
  .howto {
    padding: 0 40rem 32rem;
    border-radius: 32rem;
  }
  .howto:before {
    opacity: 0;
  }
  .present-button {
    padding: 34rem 56rem 28rem 48rem;
    border-radius: 20rem;
    border-width: 6rem;
  }
  .present-button img {
    width: 568rem;
  }
  .present-button__arrow {
    width: 60rem;
    height: 60rem;
    padding-right: 18rem;
    right: 12rem;
    top: auto;
    -webkit-transform: none;
            transform: none;
    bottom: 16rem;
  }
  .present-button__arrow span {
    width: 20rem;
    height: 24rem;
  }
  .present-button__character {
    width: 164rem;
    height: 164rem;
    right: 74rem;
    top: auto;
    -webkit-transform: none;
            transform: none;
    bottom: 8rem;
    -webkit-animation: boundTopSp 3.3s infinite ease-in-out;
            animation: boundTopSp 3.3s infinite ease-in-out;
  }
  .challange-button {
    border-radius: 20rem;
    border-width: 6rem;
    padding: 26rem 18rem 18rem 28rem;
  }
  .two-column {
    -ms-grid-columns: 1fr;
    grid-template-columns: repeat(1, 1fr);
    gap: 40rem;
    margin-top: 40rem;
  }
  .inner-column {
    gap: 44rem;
    margin-top: 40rem;
  }
  .lower-footer {
    margin-top: 40rem;
  }
  .to-top {
    bottom: 40rem;
    right: 40rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-pack: end;
        -ms-flex-pack: end;
            justify-content: flex-end;
    margin-left: auto;
    width: 248rem;
  }
  .lower-title {
    margin-top: 48rem;
  }
  .lower-title:before {
    -webkit-filter: blur(24rem);
            filter: blur(24rem);
    opacity: 0.97;
  }
  .lower-title img {
    height: 122rem;
  }
  .lower-title + .two-column {
    margin-top: 48rem;
  }
  .lower-title.lesson-title {
    margin-top: 24rem;
  }
  .lower-title.lesson-title + .two-column {
    margin-top: 16rem;
  }
  .modal .modal-content {
    width: 750rem;
    padding: 80rem 20rem;
  }
  .modal .modal-content:has(.slider-wrap) {
    padding-bottom: 152rem;
  }
  .modal .modal-content:has(.slider-wrap):has(.swiper-slide[aria-label="1 / 1"]) {
    padding-bottom: 80rem;
  }
  .modal .modal-content.webai-lesson {
    padding: 80rem 40rem 0;
    height: 80vh;
  }
  .modal .modal-content.webai-lesson .modal-content__inner {
    overflow-y: scroll;
    padding-bottom: 80rem;
  }
  .modal .close-button {
    top: -40rem;
    right: 20rem;
    width: 80rem;
  }
  .modal .close-icon {
    top: -40rem;
    right: -40rem;
    width: 100rem;
  }
  .modal .swiper-button-next,
  .modal .swiper-button-prev {
    top: auto;
    bottom: 40rem;
    width: 84rem;
    height: 84rem;
  }
  .modal .swiper-button-next {
    right: 20rem;
  }
  .modal .swiper-button-prev {
    left: 20rem;
  }
  .modal .swiper-horizontal > .swiper-pagination-bullets,
  .modal .swiper-pagination-bullets.swiper-pagination-horizontal,
  .modal .swiper-pagination-custom,
  .modal .swiper-pagination-fraction {
    bottom: 68rem;
    margin: auto;
    left: 50%;
    -webkit-transform: translateX(-50%);
            transform: translateX(-50%);
    max-width: 540rem;
  }
  .modal .swiper-horizontal > .swiper-pagination-bullets .swiper-pagination-bullet,
  .modal .swiper-pagination-horizontal.swiper-pagination-bullets .swiper-pagination-bullet {
    margin: 0 12rem;
  }
  .modal .swiper-pagination-bullet {
    width: 24rem;
    height: 24rem;
  }
  .lesson-content__title {
    width: 480rem;
    margin-bottom: 284rem;
  }
  .lesson-column {
    -ms-grid-columns: 1fr;
    grid-template-columns: repeat(1, 1fr);
    gap: 40rem;
    margin-bottom: 40rem;
  }
  .lesson-column:before {
    width: 562rem;
    height: 284rem;
    top: -286rem;
    right: auto;
    left: 50%;
    -webkit-transform: translateX(-50%);
            transform: translateX(-50%);
  }
  .lesson-column__image {
    border-radius: 32rem;
    padding: 0 40rem 36rem;
    border-width: 4rem;
  }
  .content-header {
    margin-bottom: 40rem;
  }
  .content-header:not(.lower-top__content) .content-title {
    padding-top: 96rem;
  }
  .content-header.lower-top__content {
    height: 264rem;
    -webkit-box-align: end;
        -ms-flex-align: end;
            align-items: flex-end;
    padding-bottom: 24rem;
  }
  .content-header.lower-top__content .content-title {
    width: 670rem;
    margin: auto;
  }
  .content-header .content-title {
    width: 738rem;
    margin: auto;
  }
  .back-button {
    width: 160rem;
    height: 56rem;
    top: 16rem;
    left: 32rem;
  }
}

@media (hover: hover){
  .shadow-button:hover {
    -webkit-transform: translate(0rem, 4rem);
            transform: translate(0rem, 4rem);
    -webkit-filter: drop-shadow(0px 0px 0 rgba(0, 0, 0, 0.5));
            filter: drop-shadow(0px 0px 0 rgba(0, 0, 0, 0.5));
  }
  .modal .swiper-button-next:hover,
  .modal .swiper-button-prev:hover {
    -webkit-box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
            box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  }
  .modal .swiper-button-prev:hover {
    -webkit-transform: scale(-1, 1) translateY(4rem);
            transform: scale(-1, 1) translateY(4rem);
  }
}