@media only screen and (max-width: 1200px) {
  html,
  body {
    font-size: 14px;
    overflow-x: hidden;
  }
}

body {
  font-family: "Noto Serif JP", serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
}

@media only screen and (max-width: 767px) {
  html,
  body {
    font-size: 12px;
    overflow-x: hidden;
  }
  .sp-center {
    text-align: center;
    margin-left: auto !important;
    margin-right: auto !important;
  }
}

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

.wrap {
  width: 100%;
  overflow: hidden;
}

.bg_container {
  position: fixed;
  z-index: 0;
  width: 100%;
  height: 100vh;

  background: url("../img/bg02.webp") top center no-repeat #d5e5f2;
  background-size: cover;
}

@media screen and (max-width: 767px) {
  .bg_container {
    width: 100vw;
    height: 100vh;
  }
}
.only_pc {
  display: block;
}
.only_sp {
  display: none;
}
@media screen and (max-width: 767px) {
  .only_sp {
    display: block;
  }
  .only_pc {
    display: none;
  }
}

.wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.wrapper main {
  padding-bottom: 40px;
}

.wrapper footer {
  margin-top: auto;
}

/* ------------------------------------------------mod */
span.marker {
  background-color: #d7ebf4;
}

.snow-image {
  width: 120px;
  height: 120px;
  margin: 0 auto 120px auto;
}

@media only screen and (max-width: 767px) {
  .snow-image {
    width: 60px;
    height: 60px;
    margin: 0 auto 60px auto;
  }
}

/* ------------------------------------------------雪の粒 */

.snowflake {
  position: fixed; /* absolute ではなく fixed */
  top: -30px;
  pointer-events: none; /* 雪がクリックの邪魔をしないように */
  z-index: 9999;
}

/* ふわふわ揺れるアニメーション */
@keyframes fall {
  0% {
    transform: translateY(-10vh) translateX(0); /* 画面の上、少し外からスタート */
  }
  25% {
    transform: translateY(20vh) translateX(-15px); /* 1/4落ちたら、少し左へ */
  }
  50% {
    transform: translateY(50vh) translateX(15px); /* 半分落ちたら、少し右へ */
  }
  75% {
    transform: translateY(80vh) translateX(-10px); /* 3/4落ちたら、また少し左へ */
  }
  100% {
    transform: translateY(110vh) translateX(10px); /* 画面の下、外まで落ちる */
  }
}

/* -------------------------------------------------------------------- main-image */

/* ------------------------------------------------main */

.main-wrap {
  position: relative;
  background: url("../img/bg01.webp") center no-repeat;
  background-size: cover;

  height: 100vh;
  padding: 0;
}
#main_pc {
  padding: 0;
  max-width: 1370px;
  margin: 0 auto;
}

#main_sp {
  display: none;
}

#main_sp h1 {
  padding: 0;
  margin: 0;
  line-height: 0;
}

#main_pc .main-image {
  position: relative;
  min-height: 100vh;
  width: 100%;
  aspect-ratio: 260 / 164;
  overflow: hidden;
  margin: 0 auto;
}

@media only screen and (max-width: 767px) {
  #main_pc {
    display: none;
  }

  #main_sp {
    display: block;
  }

  .main-wrap {
    height: auto;
  }
  #main_sp .main-image {
    height: auto;
    width: 100vw;
    height: 100vh;
  }
  #main_sp .main-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }
}

#main_pc .main-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  object-fit: cover;
  object-position: center;
}

/* 1枚目のアニメーション：1秒で消える */
.fade1 {
  animation: fadeOut 2.5s forwards 4s;
}

/* 2枚目のアニメーション：1秒待ってから現れる */
.fade2 {
  opacity: 0;
  animation: fadeIn 4.5s forwards 4s; /* 1秒待ってから0.5秒かけて表示 */
}

@keyframes fadeOut {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/*. --------------------------------- スクロール */

.scroll-container {
  margin-top: -105px;
  height: 150px;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: scale(0.8);
  z-index: 2;
}

@media only screen and (max-width: 767px) {
  .scroll-container {
    transform: scale(0.7);
    bottom: -6vw;
  }
}
.scrollbar-text {
  display: inline-block;
  position: absolute;
  bottom: 0;
  padding: 10px 10px 90px;
  color: #ffffff;
  font-size: 14px;
  font-family: serif;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  writing-mode: vertical-lr;
  left: 50%;
  transform: translateX(-50%);
}

.scrollbar {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 1px;
}

.scrollbar::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 1px;
  height: 80px;
  background: #ffffff;
}
.scrollbar::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  animation:
    circlemove 3s ease-in-out infinite,
    cirlemovehide 3s ease-out infinite;
}

@keyframes circlemove {
  0% {
    bottom: 95px;
  }
  100% {
    bottom: 0px;
  }
}

@keyframes cirlemovehide {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
  80% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
  }
}

/*. --------------------------------- about */

.about-text01 {
  max-width: 600px;
  width: 80%;
}

.is_about {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(123, 162, 188, 0.8);
  position: relative;
}

.is_about .about-image01 {
  position: absolute;
  width: 80px;
  height: 362px;
  background: url(../img/item-bottole.png) center no-repeat;
  background-size: contain;
  top: -250px;
  left: 50px;
}

.is_about .about-image02 {
  position: absolute;
  width: 80px;
  height: 80px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 190px;
  left: 74px;
}

.is_about .about-image03 {
  position: absolute;
  width: 80px;
  height: 80px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 40px;
  right: 100px;
}

.is_about .about-image04 {
  position: absolute;
  width: 80px;
  height: 80px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: -200px;
  right: 50px;
}

.is_about .about-image05 {
  position: absolute;
  width: 80px;
  height: 80px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: -350px;
  left: 0;
}

@media only screen and (max-width: 767px) {
  .is_about .about-image01 {
    position: relative;
    width: 60px;
    height: 200px;
    background: url(../img/item-bottole.png) center no-repeat;
    background-size: contain;
    top: -110px;
    left: auto;
    margin: 0 auto -40px auto;
  }

  .is_about .about-image02 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: -30px;
    left: 74px;
  }

  .is_about .about-image03 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: 71px;
    right: 104px;
  }

  .is_about .about-image04 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: -50px;
    right: 50px;
  }

  .is_about .about-image05 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: -350px;
    left: 0;
  }

  .w-80.noise-off {
    width: 100% !important;
  }
}

/*. --------------------------------- approach */

#approach {
  position: relative;
  background:
url("../img/moist.png") no-repeat left 80%,
url("../img/approach_bg.png") top center no-repeat;
  background-size:
    40% auto,
    100% auto;
}

#approach .approach-deco01 {
  position: absolute;
  width: 120px;
  height: 120px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: -4vw;
  left: 10vw;
}

#approach .approach-deco02 {
  position: absolute;
  width: 120px;
  height: 120px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 20vw;
  right: 10vw;
}

@media only screen and (max-width: 767px) {
  .approach_inner.pt-200 {
    padding-top: 120px !important;
  }

  #approach .approach-deco01 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: 4vw;
    left: 10vw;
  }

  #approach .approach-deco02 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: 4vw;
    right: 10vw;
  }
}
.approach-text01 {
  max-width: 600px;
  width: 80%;
  margin-bottom: 80px;
}

@media only screen and (max-width: 767px) {
  #approach {
    position: relative;
    background:
url(../img/moist.png) no-repeat left 420vw,
url(../img/approach_bg.png) top center no-repeat;
    background-size:
      60% auto,
      100% auto;
  }

  .approach-text01 {
    width: 95%;
    margin-bottom: 40px;
  }

  .approach-box {
    max-width: 100%;
    margin: 0 auto;
    padding-bottom: 60px;
    background: rgba(255, 255, 255, 0.8);
    padding: 12px;
    border-radius: 12px;
    text-align: center;
  }
}

.approach-box dl {
  margin-bottom: 0;
}

.approach-box dl dt {
  background: url("../img/color-bg.png") center no-repeat;
  background-size: cover;
  color: #629dc4;
  text-align: center;
  padding: 6px;
  border-radius: 40px;
  letter-spacing: 0.2em;
}

.approach_item figure {
  width: 500px;
  margin: 0 auto;
}

.approach-text02 {
  max-width: 500px;
  width: 80%;
  margin-bottom: 20px;
}

.approach-text03 {
  width: 140px;
}

.how-to-txt {
  width: 80%;
}

.howto-box {
  background: rgba(255, 255, 255, 0.75);
  border-radius: 12px;
  padding: 20px 40px 0px 40px;
}

.arrow {
  width: 0.75em;
  padding: 4px 0 0 0;
}

.how-to-use {
  justify-content: center;
}

.alphabet {
  display: inline-block;
  width: 3em;
  margin-right: 8px;
}

.how-to-use {
  color: #629dc4;
}

#free {
  position: absolute;
  width: 30%;

  color: #629dc4;
  bottom: 60px;
  left: 0;
}

#free li {
  list-style: none;
  border: solid 1px #629dc4;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 40px;
  width: 100%;
  margin-bottom: 12px;
  text-align: center;
}

@media only screen and (max-width: 767px) {
  .approach-text02 {
    margin-bottom: 0;
  }

  .item-image {
    background: #ffffff;
    border-radius: 24px;
    padding-bottom: 12px;
  }

  #free {
    position: relative;
    width: 100%;

    bottom: auto;
    left: auto;
  }
  #free .free {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 8px;
  }

  #free li {
    width: 45%;
    padding: 4px;
  }
}

/*. --------------------------------- step */

#observation .observation-deco01 {
  position: absolute;
  width: 120px;
  height: 120px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 40vw;
  left: 10vw;
}

#observation .observation-deco02 {
  position: absolute;
  width: 120px;
  height: 120px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 20vw;
  right: 10vw;
}

#observation .observation-deco03 {
  position: absolute;
  width: 120px;
  height: 120px;
  background: url(../img/snow.png) center no-repeat;
  background-size: contain;
  top: 66vw;
  right: 11vw;
}

@media only screen and (max-width: 767px) {
  #observation {
    padding-top: 100px !important;
  }
  #observation .observation-deco01 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: 65vw;
    left: 9vw;
  }

  #observation .observation-deco02 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;

    top: 16vw;
    right: 10vw;
  }

  #observation .observation-deco03 {
    position: absolute;
    width: 60px;
    height: 60px;
    background: url(../img/snow.png) center no-repeat;
    background-size: contain;
    top: 79vw;
    right: 10vw;
  }
}

.observation_title_wrap {
  margin-bottom: 60px;
}
.observation_title {
  width: 540px;
  max-width: 85%;
  margin: 0 auto;
}
.step-txt_wrap {
  margin-bottom: 40px;
}
.step-txt {
  width: 160px;
  margin-bottom: 40px;
}

.kansatsu {
  width: 680px;
  max-width: 100%;
  margin: 0 auto;
}

#closing {
  background: #6284ac;
  color: #ffffff;
}

.bg-dark {
  background: #6284ac;
}

button {
  border: none;
}

.bg-gr {
  background: #f4f4f4;
}

@media only screen and (max-width: 767px) {
  .observation_title_wrap {
    margin-bottom: 30px;
  }
  .step-txt_wrap {
    margin-bottom: 20px;
  }

  .step-txt {
    width: 120px;
    margin-bottom: 10px;
  }
}

.caption {
  padding: 16px;
  text-align: center;
}

@media only screen and (max-width: 767px) {
  .caption {
    text-align: left;
  }
}

/* ---------------------------- contact */

.bl_contactHeader__contact {
  background: #f6f6f6;
  padding: 120px 0;
  text-align: center;
}
.bl_contactHeader__contactTit {
  font-family: "Lato", sans-serif;
  font-weight: 400;
  font-size: 22px;
  color: #979ed3;
  letter-spacing: 0.3em;
}
.bl_contactHeader__contactTit span {
  display: block;
  text-align: center;
  font-size: 14px;
  padding-top: 20px;
  letter-spacing: 0.2em;
}
.bl_contactForm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0;
}
.bl_contactForm_input {
  margin-bottom: 32px;
}
.bl_contactForm_input dt {
  font-weight: 600;
  padding: 0 0 10px;
  font-size: 15px;
}
.bl_contactForm_input dt .required {
  display: inline-block;
  line-height: 1;
  background: #c490e8;
  color: #ffffff;
  font-size: 11px;
  padding: 2px 4px;
  border-radius: 4px;
  margin-left: 6px;
  font-family: "sans-serif";
  font-weight: normal;
}
.bl_contactForm_input dd {
  display: flex;
  justify-content: space-between;
  position: relative;
}
.el_formInput_full {
  width: 100%;
}
.el_formInput_harf {
  width: calc(50% - 10px);
}
.el_formInput {
  border: solid 2px #ccc;
  padding: 12px;
  font-size: 16px;
  box-sizing: border-box;
  width: 100%;
  background: #f6f6f6;
}
.el_formInput:focus {
  border: solid 2px #6284ac;
  background: #f7fbff;
}
.el_selectBox {
  padding: 12px;
  width: 100%;
  display: flex;
}
.el_selectBox li {
  list-style: none;
  display: inline-block;
  width: calc(20% - 10px);
  padding: 12px 0;
  box-sizing: border-box;
}
.el_selectBox li input[type="radio"] + label {
  cursor: pointer;
}
.el_selectBox li input[type="radio"] + label:hover {
  color: #6284ac;
}
.el_selectBox li input[type="radio"] + label:hover:before {
  background-color: #a5c1e1;
}
.el_selectBox li input[type="radio"] + label:before {
  display: inline-block;
  content: "\f00c";
  font-family: "FontAwesome";
  font-size: 12px;
  color: transparent;
  width: 26px;
  height: 26px;
  text-align: center;
  line-height: 26px;
  background-color: #d7d7d7;
  border-radius: 50%;
  margin-right: 10px;
  vertical-align: 1px;
}
.el_selectBox li input[type="radio"]:checked + label:before {
  background-color: #ae74d7;
  color: white;
}
input[type="radio"],
input[type="checkbox"] {
  display: none;
}
.el_formInput__txt {
  border: solid 2px #ccc;
  padding: 12px;
  font-size: 16px;
  box-sizing: border-box;
  width: 100%;
  height: 200px;
  background: #f6f6f6;
}
.el_formInput__txt:focus {
  border: solid 2px #979ed3;
  background: #fcf9ff;
  outline: none;
}
.bl_privacyLink {
  padding: 12px 0;
}
.bl_privacyLink a {
  color: #000000;
}
.el_selectBoxel_checkBox input[type="checkbox"] + label {
  cursor: pointer;
}
.el_selectBoxel_checkBox input[type="checkbox"] + label:hover {
  color: #979ed3;
}
.el_selectBoxel_checkBox input[type="checkbox"] + label:hover:before {
  background-color: #dcd5e4;
}
.el_selectBoxel_checkBox input[type="checkbox"] + label:before {
  display: inline-block;
  content: "\f00c";
  font-family: "FontAwesome";
  font-size: 12px;
  color: transparent;
  width: 26px;
  height: 26px;
  text-align: center;
  line-height: 26px;
  background-color: #d7d7d7;
  border-radius: 3px;
  margin-right: 10px;
  vertical-align: 1px;
}
.el_selectBoxel_checkBox input[type="checkbox"]:checked + label:before {
  background-color: #797ec7;
  color: white;
}
input[type="radio"] {
  display: none;
}
.error {
  display: block;
  color: #ff0004;
  font-size: 14px;
}
.bl_buttonBox {
  padding: 30px 0;
}
.bl_buttonBox {
  padding: 30px 0 60px 0;
  text-align: center;
}
.el_submitBtn {
  -webkit-writing-mode: horizontal-tb !important;
  -webkit-appearance: button;
  padding: 16px 100px;
  text-rendering: auto;
  color: #ffffff;
  display: inline-block;
  text-align: start;
  background: #5d71a5;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0 20px;
  border: none;
  border-radius: 40px;
  -webkit-transition: 0.3s ease;
  transition: 0.3s ease;
}
.el_submitBtn.el_btn-base_off {
  background: #cccccc;
}
.el_submitBtn:hover {
  background: #353c94;
}
.el_backBtn {
  -webkit-writing-mode: horizontal-tb !important;
  -webkit-appearance: button;
  padding: 16px 30px;
  text-rendering: auto;
  color: #ffffff;
  display: inline-block;
  text-align: start;
  background: #ccc;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin: 0 20px;
}
@media only screen and (max-width: 767px) {
  .el_selectBox {
    flex-direction: column;
  }
  .el_selectBox li {
    width: 100%;
  }
}

/* ---------------------------- 確認用 */
#formWrap {
  text-align: center;
}
#formWrap h3 {
  font-weight: 500;
  font-size: 20px;
  color: #979ed3;
  letter-spacing: 0.3em;
  margin-bottom: 40px;
}
.el_exText {
  text-align: center;
  margin-bottom: 40px;
}
.formTable {
  width: 100%;
  margin-bottom: 40px;
}
.formTable th,
.formTable td {
  border-bottom: solid 2px #ccc;
  text-align: left;
  padding: 18px 0;
}
.formTable th {
  width: 35%;
}
.bl_thanksTxt {
  text-align: center;
}
.bl_thanksTxt p {
  margin-bottom: 1.5em;
  font-size: 14px;
  line-height: 2.2;
}
.bl_thanksTxt p.bold {
  font-weight: bold;
  font-size: 16px;
}
/* ---------------------------- プライバシーポリシー */
.bl_txtCont {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 0;
  font-size: 14px;
}
.bl_txtCont h2 {
  font-weight: 500;
  margin-bottom: 1.5em;
}
.bl_txtCont p {
  font-size: 14px;
  margin-bottom: 1.5em;
}

.bl_privacyTxt {
  margin-bottom: 3em;
}

.bl_privacyTxt h3 {
  font-weight: 500;
  margin-bottom: 10px;
}

.bl_privacyTxt ol {
  padding-left: 1em;
  margin-left: 0;
}

.bl_privacyTxt ul li {
  list-style: none;
}

@media screen and (max-width: 520px) {
  .bl_contactHeader__contact {
    padding: 50px 0;
  }
  .bl_contactHeader__contactTit {
    font-size: 18px;
  }
  .bl_contactForm {
    width: 90%;
    margin: 0 auto;
  }
  .el_selectBoxel_selectBox li {
    width: 100%;
  }
  .el_selectBoxel_checkBox input[type="checkbox"] + label {
    font-size: 14px;
  }
  .el_submitBtn {
    padding: 16px 50px;
    margin: 0 5px;
  }
  .el_backBtn {
    padding: 16px 10px;
    margin: 0 5px;
  }
  .formTable th {
    display: block;
    width: 100%;
    padding-bottom: 0;
    border-bottom: none;
    font-weight: 500;
    padding: 12px 0 0 0;
  }
  .formTable td {
    display: block;
    padding: 12px 0;
    padding-top: 6px;
    margin-bottom: 12px;
  }
  .bl_thanksTxt {
    text-align: left;
  }
  .bl_thanksTxt p.bold {
    text-align: center;
  }
}
#formWrap {
  max-width: 980px;
  margin: 0 auto;
  width: 90%;
}
.req {
  color: red;
  display: inline-block;
  padding-left: 4px;
}

.bl_thanks_info {
  border: solid 2px var(--bs-gray-400);
  padding: 24px;
  margin: 0 8px;
}