@import url(http://fonts.googleapis.com/earlyaccess/notosansjp.css);

html,
body {
  overflow-x: hidden; /* 狭いデバイスでのスクロールを防止 */
  background: #f8f7f6;
  transition: background 0.5s cubic-bezier(0.4, 0.4, 0, 1);
  font-family: 'Noto Sans JP', sans-serif;
}

a {
  text-decoration: none;
}

a:hover{
  transition-duration: 600ms;
  transform: translateX(4px) translateY(4px);
  opacity: .6;
}

.cursor_p {
  cursor:pointer;
}

header{
  align-content: stretch;
  align-items: stretch;
  background: rgb(255, 255, 255);
  box-shadow: 0px 0px 0px rgba(225, 79, 79, 0);
  flex: none;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: space-between;
  left: 0;
  margin: 0 0 0 0;
  opacity: 1;
  padding: 24px 196px;
  position: fixed;
  top: 0;
  transition-delay: 800ms;
  transition-duration: 800ms;
  width: 100%;
  z-index: 4;
  max-width: 100%;
}

.container{
  min-height:calc(100vh - 56px - 60px);
}

#main {
  align-content: center;
  align-items: center;
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  justify-content: center;
  padding: 0px;
  width: 100%;
  max-width: 100%;
  z-index: 0;
  display: flex;
  position: relative;
  background-image: url(../img/bg.webp);
  background-attachment: fixed;
}

/* ai AViC for English Composition Training */
.top {
  background: #ffffff80;
  flex: none;
  flex-direction: row;
  flex-wrap: wrap;
  height: auto;
  padding: 0px 72px;
  width: 100%;
  max-width: 100%;
  pointer-events: all;
  z-index: 0;
  align-content: center;
  align-items: center;
  display: flex;
  position: relative;
}

.top_l {
  align-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0);
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  height: auto;
  justify-content: center;
  overflow-x: visible;
  overflow-y: visible;
  padding: 124px 48px;
  width: 55%;
  max-width: 55%;
  display: flex;
  position: relative;
}

.top_l img {
  box-shadow: 0px 0px 5px 2px rgba(0, 0, 0, 0.2);
  flex: none;
  height: auto;
  margin: 24px 0px 0px 0px;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: 85%;
  max-width: 85%;
}

.top_l_only {
  align-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0);
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  height: auto;
  justify-content: center;
  overflow-x: visible;
  overflow-y: visible;
  padding: 124px 48px;
  width: 100%;
  max-width: 100%;
  display: flex;
  position: relative;
}

.top_p01 {
  color: #315517ff;
  flex: none;
  font-size: 36px;
  font-weight: 700;
  height: auto;
  letter-spacing: normal;
  line-height: 1.45;
  margin: 0px;
  text-align: left;
  transition-delay: 0ms;
  transition-duration: 800ms;
  width: 84%;
  max-width: 84%;
  justify-content: flex-start;
}

.top_p02 {
  color: #315517ff;
  flex: none;
  font-size: 28px;
  font-weight: 700;
  height: auto;
  letter-spacing: normal;
  line-height: 1.45;
  margin: 0px;
  text-align: left;
  transition-delay: 0ms;
  transition-duration: 800ms;
  width: 84%;
  max-width: 84%;
  justify-content: flex-start;
}

.top_p03 {
  color: #444444ff;
  flex: none;
  font-size: 20px;
  font-weight: 500;
  height: auto;
  letter-spacing: normal;
  line-height: 1.6;
  margin: 24px 0px 0px 0px;
  text-align: left;
  transition-delay: 0ms;
  transition-duration: 800ms;
  width: 84%;
  max-width: 84%;
  justify-content: flex-start;
}

.link01 {
  align-content: center;
  align-items: center;
  border-bottom: 0px solid #000;
  border-left: 0px solid #000;
  border-right: 0px solid #000;
  border-top: 0px solid #000;
  flex: none;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  margin: 24px 0px 0px 0px;
  padding: 0px 0px 0px 0px;
  width: auto;
  max-width: 100%;
  display: flex;
  position: relative;
}

.link01_y {
  align-content: center;
  align-items: center;
  background: #ffc300;
  border-bottom: 0px solid #ff9200ff;
  border-left: 0px solid #ff9200ff;
  border-radius: 4px;
  border-right: 0px solid #ff9200ff;
  border-top: 0px solid #ff9200ff;
  box-shadow: 3px 3px 0px rgb(255, 154, 0);
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  padding: 12px 48px;
  /* transition-duration: 600ms; */
}

.link01_g {
  align-content: center;
  align-items: center;
  background: #52a400ff;
  border-bottom: 0px solid #000;
  border-left: 0px solid #000;
  border-radius: 4px;
  border-right: 0px solid #000;
  border-top: 0px solid #000;
  box-shadow: 3px 3px 0px rgb(47, 110, 0);
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: center;
  /* margin: 0px 0px 0px 12px; */
  padding: 12px 48px;
  /* transition-duration: 600ms; */
  /* max-width: calc(100% - 12px); */
}

.link01_p {
  border-bottom: 0px solid rgba(0, 0, 0, 0);
  border-left: 0px solid rgba(0, 0, 0, 0);
  border-right: 0px solid rgba(0, 0, 0, 0);
  border-top: 0px solid rgba(0, 0, 0, 0);
  color: #ffffffff;
  font-size: 14px;
  font-weight: 600;
  height: auto;
  letter-spacing: 0.15em;
  line-height: 1.4;
  margin: 0px 0px 0px 6px;
  padding: 0px 0px 0px;
  text-align: center;
  transition-duration: 600ms;
  width: auto;
  max-width: calc(100% - 6px);
  justify-content: center;
}

.top_r {
  align-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.0);
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  height: auto;
  justify-content: center;
  /* padding: 192px 50px; */
  width: 45%;
  max-width: 45%;
}

.top_r img {
  flex: none;
  height: auto;
  transform: translate(0px, 0px) rotate(0deg) scale(1, 1);
  transition-delay: 0ms;
  width: 75%;
  max-width: 75%;
}

@media (max-width: 800px) {

.top {
  padding: 20px 20px;
}

.top_p01 {
    font-size: 18px;
  }

  .top_p02 {
    font-size: 18px;
  }

  .top_p03 {
    font-size: 18px;
  }

}

/* How to Learn with ai AViC? */
.howto_section {
    align-items: center;
    background: #02357c;
    flex: none;
    flex-direction: column;
    flex-wrap: nowrap;
    height: auto;
    /* justify-content: center; */
    padding: 72px 72px 72px 72px;
    width: 100%;
    max-width: 100%;
}

.howto_h2 {
    color: #ffffffff;
    flex: none;
    font-size: 24px;
    font-weight: 700;
    height: auto;
    letter-spacing: 0.1em;
    line-height: 1.6;
    text-align: center;
    transition-duration: 800ms;
    width: auto;
    z-index: 0;
    max-width: 100%;
    justify-content: center;
}

.howto_img {
    /* height: 25px; */
    margin: 20px 0px 0px 0px;
    /* padding: 20px 20px; */
    width: 748px;
    max-width: 100%;
    position: relative;
}

.icon {
    color: #ffffffff;
    font-size: 64px;
    align-content: center;
    align-items: center;
    display: flex;
    flex-direction: row;
    justify-content: center;
    overflow: visible;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.step {
    color: #0100a1;
    font-size: 18px;
    font-weight: 600;
    height: auto;
    letter-spacing: normal;
    line-height: 0.9;
    margin: 0px 0px 0px 0px;
    padding: 4px;
    text-align: left;
    width: auto;
    max-width: 100%;
    justify-content: flex-start;
}

.box_midashi {
      color: #ffffffff;
    font-family: var(--s-font-309d8b5b);
    font-size: 24px;
    font-weight: 600;
    height: auto;
    letter-spacing: normal;
    line-height: 0.9;
    margin: 0px 0px 0px 0px;
    padding: 6px;
    text-align: left;
    width: auto;
    max-width: 100%;
    justify-content: flex-start;
}

.box_h4 {
  color: #000000;
    flex: none;
    font-family: var(--s-font-309d8b5b);
    font-size: 16px;
    font-weight: 500;
    height: auto;
    letter-spacing: normal;
    line-height: 1.4;
    margin: 24px 0px 0px 0px;
    text-align: center;
    width: 100%;
    max-width: 100%;
    justify-content: center;
}

.howtobox {
    display:flex;
    align-content: stretch;
    align-items: stretch;
    /* flex: none; */
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    margin: 48px 0px 0px 0px;
    padding: 0px;
    width: 1080px;
    max-width: 100%;
}

.howtobox01 {
    display:flex;
    align-content: center;
    align-items: center;
    background: #00d4ffff;
    border-bottom: 0px solid #f6f3ee;
    border-left: 0px solid #f6f3ee;
    border-radius: 8px;
    border-right: 0px solid #f6f3ee;
    border-top: 0px solid #f6f3ee;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    flex: none;
    flex-direction: column;
    flex-wrap: wrap;
    height: auto;
    justify-content: flex-start;
    margin: 0px 24px 0px;
    padding: 24px 24px;
    transition-delay: 200ms;
    transition-duration: 400ms;
    transition-timing-function: cubic-bezier(0.445, 0.05, 0.55, 0.95);
    width: calc(33% - 48px);
    max-width: calc(33% - 48px);
}

.howtobox02 {
  display:flex;
    align-content: center;
    align-items: center;
    background: #ffc700ff;
    border-bottom: 0px solid #f6f3ee;
    border-left: 0px solid #f6f3ee;
    border-radius: 8px;
    border-right: 0px solid #f6f3ee;
    border-top: 0px solid #f6f3ee;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    flex: none;
    flex-direction: column;
    flex-wrap: nowrap;
    height: auto;
    justify-content: flex-start;
    margin: 0px 24px 0px;
    padding: 24px 24px;
    transition-delay: 200ms;
    transition-duration: 400ms;
    transition-timing-function: cubic-bezier(0.445, 0.05, 0.55, 0.95);
    width: calc(33% - 48px);
    max-width: calc(33% - 48px);
}

.howtobox03 {
    display:flex;
    align-content: center;
    align-items: center;
    background: #ff9e00ff;
    border-bottom: 0px solid #f6f3ee;
    border-left: 0px solid #f6f3ee;
    border-radius: 8px;
    border-right: 0px solid #f6f3ee;
    border-top: 0px solid #f6f3ee;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    flex: none;
    flex-direction: column;
    flex-wrap: nowrap;
    height: auto;
    justify-content: flex-start;
    margin: 0px 24px 0px;
    padding: 24px 24px;
    transition-delay: 200ms;
    transition-duration: 400ms;
    transition-timing-function: cubic-bezier(0.445, 0.05, 0.55, 0.95);
    width: calc(33% - 48px);
    max-width: calc(33% - 48px);
}

@media (max-width: 800px) {
  .howtobox{
    flex-direction: column;
  }
  .howtobox01{
    flex-direction: column;
    max-width: 100%;
    width: 100%;
    margin: 0px;
  }
  .howtobox02{
    flex-direction: column;
    max-width: 100%;
    width: 100%;
    margin: 0px;
  }
  .howtobox03{
    flex-direction: column;
    max-width: 100%;
    width: 100%;
    margin: 0px;
  }
}

/* whyaiavic_section */
.whyaiavic_section {
    align-content: flex-start;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0);
    flex: none;
    flex-direction: column;
    flex-wrap: nowrap;
    height: auto;
    justify-content: center;
    padding: 96px 124px;
    width: 100%;
    max-width: 100%;
}

.whyaiavic_section h2 {
    color: #2f6e00;
    font-size: 32px;
    font-weight: 700;
    height: auto;
    letter-spacing: 0.1em;
    line-height: 1.6;
    /* margin: 0px 0px 0px 112px; */
    text-align: center;
    transition-duration: 800ms;
    width: auto;
    max-width: calc(100% - 112px);
    justify-content: center;
}

.whyaiavic_section_white {
    align-content: flex-start;
    align-items: flex-start;
    background: #ffffffba;
    flex: none;
    flex-direction: column;
    flex-wrap: nowrap;
    height: 100%;
    justify-content: flex-start;
    padding: 48px 60px;
    width: 100%;
    max-width: 100%;

}
.whyaiavic_section_contents {
    display:flex;
    align-content: flex-start;
    align-items: flex-start;
    background: #ffffff00;
    /* flex: none; */
    flex-direction: row;
    flex-wrap: wrap;
    height: auto;
    justify-content: center;
    width: 100%;
    max-width: 100%;
}

.whyaiavic_section_c01 {
    align-content: center;
    align-items: center;
    background: #ffffffff;
    border-radius: 8px;
    box-shadow: 0px 0px 5px 2px rgba(0, 0, 0, 0.2);
    height: auto;
    min-height: 420px;
    justify-content: center;
    margin: 0px 12px;
    padding: 6px;
    width: calc(25% - 24px);
    max-width: calc(25% - 24px);
}

.ws_imag01{
      border-radius: 8px;
    flex: none;
    height: auto;
    margin: 0px 0px 0px 0px;
    width: 98%;
    max-width: 98%;
}

.ws_p01{
    color: #0100a1ff;
    flex: none;
    font-size: 20px;
    font-weight: 600;
    height: auto;
    line-height: 1.4;
    margin: 24px 0px 0px 0px;
    text-align: center;
    width: 100%;
    max-width: 100%;
    justify-content: center;
}

.ws_p02{
    color: #333333;
    font-size: 14px;
    font-weight: 400;
    height: auto;
    line-height: 1.4;
    margin: 24px 0px 12px 0px;
    /* text-align: center; */
    width: auto;
    max-width: 100%;
    justify-content: center;
}

@media (max-width: 800px) {
  .whyaiavic_section_contents {
    flex-direction: column;
  }
  .whyaiavic_section_white {
    padding: 0;
  }
  .whyaiavic_section_c01{
    max-width: 100%;
    width: 100%;
  }
}

/* tb_plyer_section */
.tb_plyer_section {
    /* align-content: center;
    align-items: center;
    background: #00000049;
    flex: none;
    height: 480px;
    justify-content: center;
    margin: 0px 0px -480px 0px;
    padding: 0px 0px 0px 0px;
    width: 100%;
    z-index: 0;
    max-width: 100%; */
    display: flex;
    flex-direction: column;
    background-image: url(../img/tbplyaer_bg.webp);
    max-width: 100%;
    width: 100%;
    align-content: center;
    align-items: center;
    height: 480px;
    justify-content: center;
}

.tb_plyer_p01 {
    color: #ffffffff;
    font-size: 24px;
    font-weight: 800;
    height: auto;
    letter-spacing: 0.17em;
    line-height: 1.4;
    margin: 0px 0px 48px 0px;
    text-align: left;
    width: auto;
    z-index: 0;
    max-width: 100%;
    justify-content: flex-start;
}

.tb_plyer_p02 {
  color: #ffffffff;
    font-size: 16px;
    font-weight: 400;
    height: auto;
    letter-spacing: normal;
    line-height: 1.4;
    margin: 0px 0px 48px 0px;
    text-align: left;
    width: auto;
    z-index: 0;
    max-width: 100%;
    justify-content: flex-start;
    text-align: center;
}

.tb_plyer_p03 {
    color: #ffffffff;
    font-size: 20px;
    font-weight: 700;
    height: auto;
    line-height: 1.4;
    padding: 0px;
    text-align: center;
    width: auto;
    max-width: 100%;
    justify-content: flex-start;
    margin-bottom: 0;
}

.tb_dl {
    align-content: center;
    align-items: center;
    background: #eeeeee00;
    flex: none;
    flex-direction: row;
    flex-wrap: nowrap;
    height: auto;
    justify-content: center;
    width: 70%;
    max-width: 70%;
}


.tb_windows{
    align-content: center;
    align-items: center;
    background: #0100a1ff;
    border-bottom: 2px solid #ffffffff;
    border-left: 2px solid #ffffffff;
    border-radius: 2px 2px 24px 2px;
    border-right: 2px solid #ffffffff;
    border-top: 2px solid #ffffffff;
    box-shadow: 3px 3px 0px rgb(255, 255, 255);
    flex: none;
    flex-direction: row;
    flex-wrap: nowrap;
    height: auto;
    justify-content: center;
    margin: 0px 12px 0px 12px;
    padding: 24px 24px;
    width: calc(33% - 24px);
    max-width: calc(33% - 24px);
}

.tb_android {
    align-content: center;
    align-items: center;
    background: #ff9200ff;;
    border-bottom: 2px solid #ffffffff;
    border-left: 2px solid #ffffffff;
    border-radius: 2px 2px 24px 2px;
    border-right: 2px solid #ffffffff;
    border-top: 2px solid #ffffffff;
    box-shadow: 3px 3px 0px rgb(255, 255, 255);
    flex: none;
    flex-direction: row;
    flex-wrap: nowrap;
    height: auto;
    justify-content: center;
    margin: 0px 12px 0px 12px;
    padding: 24px 24px;
    width: calc(33% - 24px);
    max-width: calc(33% - 24px);
}

.tb_ios {
    align-content: center;
    align-items: center;
    background: #22b500ff;
    border-bottom: 2px solid #ffffffff;
    border-left: 2px solid #ffffffff;
    border-radius: 2px 2px 24px 2px;
    border-right: 2px solid #ffffffff;
    border-top: 2px solid #ffffffff;
    box-shadow: 3px 3px 0px rgb(255, 255, 255);
    flex: none;
    flex-direction: row;
    flex-wrap: nowrap;
    height: auto;
    justify-content: center;
    margin: 0px 12px 0px 12px;
    padding: 24px 24px;
    width: calc(33% - 24px);
    max-width: calc(33% - 24px);
}

@media (max-width: 800px) {
.whyaiavic_section {
  padding: 96px 50px;
}

  .tb_dl {
    flex-direction: column;
  }
  .tb_windows {
    max-width: 100%;
    width: 100%;
  }
  .tb_android {
    max-width: 100%;
    width: 100%;
  }
  .tb_ios{
    max-width: 100%;
    width: 100%;
  }
}

/* footer */
footer{
  align-content: center;
  align-items: center;
  background: #ffffffff;
  flex: none;
  flex-direction: row;
  flex-wrap: nowrap;
  height: auto;
  justify-content: space-between;
  padding: 67px 96px;
  width: 100%;
  max-width: 100%;
  z-index: 0;
  display: flex;
  position: relative;
}

.f_left {
  align-content: flex-start;
  align-items: flex-start;
  background: #eeeeee00;
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  height: auto;
  justify-content: center;
  width: 30%;
  max-width: 30%;
}

.text_l01 {
  color: #000000;
  font-size: 20px;
  font-weight: 700;
  height: auto;
  letter-spacing: 0.05em;
  line-height: 1;
  margin: 0px 24px 96px 0px;
  text-align: left;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: auto;
  z-index: 1;
  max-width: calc(100% - 24px);
  justify-content: flex-start;
}

.text_l02 {
  color: #000000;
  font-size: 10px;
  font-weight: 700;
  height: auto;
  letter-spacing: 0.05em;
  line-height: 1.4;
  margin: 0px 0px 0px 0px;
  text-align: left;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: auto;
  z-index: 1;
  max-width: 100%;
  justify-content: flex-start;
}

.f_right {
  align-content: flex-start;
  align-items: flex-start;
  background: #eeeeee0d;
  flex: none;
  flex-direction: column;
  flex-wrap: nowrap;
  height: 160px;
  justify-content: flex-start;
  width: 50%;
  max-width: 50%;
}

.text_r01 {
  color: #000000;
  font-size: 20px;
  font-weight: 700;
  height: auto;
  letter-spacing: 0.05em;
  line-height: 1;
  margin: 0px 24px 36px 0px;
  text-align: left;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: auto;
  z-index: 1;
  max-width: calc(100% - 24px);
  justify-content: flex-start;
}

.text_r02 {
  color: #000000;
  font-size: 16px;
  font-weight: 700;
  height: auto;
  letter-spacing: 0.05em;
  line-height: 1;
  margin: 0px 24px 0px 0px;
  text-align: left;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: auto;
  z-index: 1;
  max-width: calc(100% - 24px);
  justify-content: flex-start;
}

.text_r03 {
  color: #000000;
  font-size: 16px;
  font-weight: 500;
  height: auto;
  letter-spacing: 0.05em;
  line-height: 1;
  margin: 0px 0px 24px 0px;
  text-align: left;
  transition-delay: 300ms;
  transition-duration: 1000ms;
  width: auto;
  z-index: 1;
  max-width: 100%;
  justify-content: flex-start;
}