@charset "UTF-8";

:root {
  --color-white: #FFFFFF;
  --color-black: #333333;
  --color-666666: #666666;
  --color-7F7F80: #7F7F80;
  --color-B3B3B3: #B3B3B3;
  --color-D9D9D9: #D9D9D9;
  --color-0E182E: #0E182E;
  --color-EEEEF5: #EEEEF5;
  --color-ECECEC: #ECECEC;
  --color-F48283: #F48283;
  --color-5D7DBF: #5D7DBF;
  --color-5D7DBF-75: rgba(93, 126, 191, 0.75);
  --font13: 0.8125rem;
  --font14: 0.875rem;
  --font15: 0.9375rem;
  --font16: 1rem;
  --font17: 1.0625rem;
  --font18: 1.125rem;
  --font20: 1.25rem;
  --font21: 1.3125rem;
  --font24: 1.5rem;
  --font26: 1.625rem;
  --font28: 1.75rem;
  --font30: 1.875rem;

  --font-weight-bold: 700;
  --font-weight-normal: normal;
  --main-width_1200: min(calc(100vw - 6vw), 1200px);
  --shape-triangle-right: polygon(0 0, 100% 50%, 0 100%);
  --shadow: 0 0.3rem 2.5rem -2rem rgba(85, 96, 96, 0.3), 0 0.3rem 0.5rem rgba(84, 96, 96, 0.376);
  --shadow2: 0 0.2rem 2rem -1rem rgba(85, 96, 96, 0.4), 0 0.2rem 0.3rem rgba(84, 96, 96, 0.4);
  --header-h: clamp(65px, 8vw, 80px);
  --header-nav-h: clamp(100px, 17vw, 170px);
}

:where(html, body, div, span, h1, h2, h3, h4, h5, p, a, img,dl, dt, dd, ul, li, ol,form, label, footer, header,section, button, figure, input, time){
  margin: 0;
  padding: 0;
  border: 0;
  overflow-wrap: break-word;
  font-size: 100%;
  line-height: 1.4;
  vertical-align: baseline;
}
body, html, input, button, a {
  color: var(--color-black);
  font-family: "Noto Sans JP", 'Roboto', "Hiragino Sans", "Hiragino Kaku Gothic ProN", メイリオ, Meiryo, Arial, sans-serif;
  font-weight: var(--font-weight-normal);
}
body{
  background: var(--color-white);
}
html{
  scroll-padding-top: 100px;
  scroll-behavior: smooth;
}
img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}
a, a:active, a:focus, a::before {
  text-decoration: none;
  transition: .3s;
}
:where(ul, ol, li) {
  list-style-type: none;
}
span, a{
  display: inline-block;
}
p, li, a, dd, h3{
  font-size: clamp(var(--font16), calc((0.0625rem * 16) + ((1vw - 3.8px) * (2 / 13.7))), var(--font18));
}
/* Utility Classes (Recommended)
---------------------------------------------*/
.mb-100-50{ margin-bottom: clamp(50px, 10vw / 1.75, 100px); }
.mb-150-60{ margin-bottom: clamp(60px, 15vw / 1.75, 150px); }
.mb-250-100{ margin-bottom: clamp(100px, 25vw / 1.75, 250px); }
.mb-350-100{ margin-bottom: clamp(100px, 35vw / 1.75, 350px); }
.mb-450-100{ margin-bottom: clamp(100px, 45vw / 1.75, 450px); }
.fw-bold { font-weight: var(--font-weight-bold); }
.text-center { text-align: center; }
.width-1200 {
  width: var(--main-width_1200);
  margin-inline: auto;
}
.d-flex { display: flex; }
.d-grid { display: grid; }
/*三角*/
.arrow{
  position: relative;
  padding-left: 2.2em;
  &::before{
    --size: 0.6em;
    content: '';
    position: absolute;
    top: 50%;
    left: 0.9em;
    transform: translateY(-50%);
    width: var(--size);
    height: calc(var(--size) / 1.5 * tan(60deg));
    background: var(--color-white);
    clip-path: var(--shape-triangle-right);
  }
}
/*ボタン*/
.btn{
  box-shadow: var(--shadow);
  border-radius: 1em;
  padding-block: 0.3em;
  &:hover, &:active{
    box-shadow: none;
    transform: translateY(3px);
    transition: .3s;
  }
}
/*赤文字*/
.red-text{
  color: var(--color-F48283);
}
/*表示されない*/
.visually-hidden {
  border: 0!important;
  clip: rect(0,0,0,0)!important;
  height: 1px!important;
  margin: -1px!important;
  overflow: hidden!important;
  padding: 0!important;
  position: absolute!important;
  white-space: nowrap!important;
  width: 1px!important;
}
/*ヘッダー
---------------------------*/
.header{
  --header-logo-h: clamp(30px, 8vw, 80px);
  position: fixed;
  width: 100%;
  background: var(--color-0E182E);
  transition: .5s;
  z-index: 10;
}
.header__logo{
  align-items: center;
  height: var(--header-logo-h);
  padding-inline: clamp(15px, 3.5vw, 35px);
}
.header__logo-link, .footer__logo{
  width: clamp(75px, 16vw, 160px);
  height: 100%;
  img{
    height: 100%;
    object-fit: contain;
  }
}
.header__nav{
  --padding-inline: clamp(10px, 3vw, 70px);
  place-items: center end;
  height: var(--header-nav-h);
  background: var(--color-white);
  padding-inline: var(--padding-inline);
  a{
    font-size: clamp(var(--font14), calc((0.0625rem * 14) + ((1vw - 5px) * (4 / 5))), var(--font18));
  }
}
.header__nav-list{
  align-items: center;
  gap: clamp(10px, 3vw, 3rem);
}
.header__nav-link{
  &.active, &:hover{
    color: var(--color-F48283);
  }
}
.header__nav-button{
  background: var(--color-5D7DBF);
  border: 3px solid var(--color-5D7DBF);
  border-radius: 0.8em;
  color: var(--color-white);
  padding: clamp(0.5em, 1.5vw, 1em);
  &:hover{
    background: var(--color-white);
    color: var(--color-5D7DBF);
  }
}
/*-- スクロール後のheader --*/
.header-height{
  transform: translateY(-200px);
  animation: Header .5s ease-out .5s forwards;
  .logo-img{
    display: none;
  }
  .header__nav{
    height: var(--header-h);
  }
}
@keyframes Header {
  0% { transform: translateY(-200px); }
  100% { transform: translateY(calc((-1 * var(--header-logo-h)) - 1px)); }
}
@media (width <=700px){
}
/*main
---------------------------*/
.main{
  padding-top: calc(var(--header-h) + var(--header-nav-h) + 10px);
}
.container__title{
  color: var(--color-white);
  font-size: clamp(var(--font20), calc((0.0625rem * 20) + ((1vw - 3.8px) * (8 / 8.2))), var(--font28));
  padding: 0.7em 1em;
  margin-bottom: 2em;
  &.about__title{
    background: var(--color-F48283);
  }
  &.page-header__title, &.usage__subtitle{
    background: var(--color-5D7DBF);
  }
}
.content__title{
  border-bottom: 2px solid;
  color: var(--color-5D7DBF);
  font-size: clamp(var(--font18), calc((0.0625rem * 18) + ((1vw - 5px) * (8 / 7))), var(--font26));
  padding-bottom: 0.3em;
  margin-bottom: 1em;
}
.content__subtitle{
  border-left: 6px solid;
  font-size: clamp(var(--font17), calc((0.0625rem * 17) + ((1vw - 5px) * (3 / 7))), var(--font20));
  padding: 0.7em 0.8em;
  margin-bottom: 1.2em;
  &:where(:not(.red-text)){
    color: var(--color-7F7F80);
  }
}
p.text{
  margin-bottom: 1em;
}
.text__note{
  position: relative;
  font-size: 1rem;
  margin-bottom: 0.5em;
  padding-left: 1.2em;
  &::before{
    content: '※';
    position: absolute;
    top: 0;
    left: 0;
  }
  b{
    font-size: 120%;
    text-decoration: underline solid var(--color-black);
  }
}
/*ナンバー*/
.list-number{
  counter-reset: num;
  >li{
    counter-increment: num;
    position: relative;
  }
}
.step__list-item{
  padding-left: 2em;
  margin-bottom: 2em;
  &::before{
    content: counter(num) ' ';
    position: absolute;
    top: 0;
    left: 0;
    display: grid;
    place-content: center;
    width: 1.2em;
    aspect-ratio: 1;
    border: 1px solid;
    border-radius: 50%;
    line-height: 1;
  }
  .text__note:first-child{
    margin-top: 1em;
  }
}
/*footer
---------------------------*/
.footer__trademark-text{
  font-size: 14px
}
.footer__trademark{
  margin-bottom: 1rem;
  li{
    font-size: var(--font14);
  }
}
.footer__image{
  background: var(--color-0E182E);
  padding-top: 5px;
  img{
    width: min(100%, 1400px);
    height: clamp(50px, 9.5vw / 1.5, 95px);
    object-fit: cover;
  }
}
.footer__inner{
  background: var(--color-EEEEF5);
  padding-block: clamp(25px, 5vw / 1.5, 50px) 10px;
}
.footer__nav-list{
  justify-content: end;
  align-items: center;
  gap: clamp(1rem, 4vw / 1.5, 2.5rem);
  a{
    font-size: clamp(var(--font14), calc((0.0625rem * 14) + ((1vw - 5px) * (4 / 5))), var(--font18));
  }
}
.footer__nav-link{
  color: var(--color-0E182E);
  &:hover{
    opacity: .7;
  }
}
.footer__nav-button{
  background: var(--color-white);
  border: 2px solid;
  color: var(--color-5D7DBF);
  padding: 1em;
  margin-block: 2em;
}
.footer__bottom{
  border-top: 1px solid var(--color-7F7F80);
  padding-top: 0.5rem;
  p{
    font-size: clamp(var(--font13), calc((0.0625rem * 13) + ((1vw - 5px) * (3 / 5))), var(--font16));
    color: var(--color-7F7F80);
  }
}
/*トップへ戻る
---------------------------*/
.page-top{
  position: fixed;
  bottom: 30px;
  right: 20px;
  width: 60px;
  aspect-ratio: 1;
  background: var(--color-white);
  border-radius: 50%;
  color: var(--color-white);
  cursor: pointer;
  opacity: 0;
  z-index: 10;
  &::before{
    width: 15px;
    left: 50%;
    transform: translate(-50%, -25%) rotate(-45deg);
  }
  &.visible{
    opacity: 1;
  }
  img{
    width: 50%;
  }
  &:hover{
    background: var(--color-ECECEC);
  }
}
@media (width <=780px){
  .page-top{
    display: none;
  }
}