@charset "utf-8";
/* CSS Document */

html {
  font-size: 62.5%;
  font-feature-settings: "palt";
  scroll-behavior: smooth;
}
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #313333;
  font-size: 16px;
  font-feature-settings: "palt";
  letter-spacing: 0.05em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  max-width: 100%;
  height: auto;
}
a {
  text-decoration: none;
}
a,
p,
span,
li,
dt,
dd,
th,
td,
h1,
h2,
h3,
h4 {
  line-height: 1.5em;
}
a.al {
  display: block;
  margin-top: -100px;
  padding-top: 100px;
}
.SP {
  display: none;
}
.mont {
  font-family: "Montserrat", sans-serif;
}
.dai {
  font-family: "Montserrat", sans-serif;
}
section {
  padding: 80px 0;
}
.sec_inner {
  max-width: 1200px;
  margin: 0 auto;
}
h2 {
  font-size: 40px;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
}
h2 span {
  font-size: 20px;
  font-weight: bold;
  line-height: 1em;
}
.bkg_glay {
  background-color: #f3f3f3;
}
h1 {
  color: #fff;
  font-size: 40px;
  font-weight: bold;
  padding-left: 100px;
}
h1 span {
  font-weight: bold;
  font-size: 20px;
  display: block;
  margin-bottom: 10px;
}
h3 {
  font-size: 30px;
  background-color: #313333;
  color: #fff;
  font-weight: bold;
  width: fit-content;
  padding: 10px 20px;
  margin-bottom: 30px;
}
.wrapp {
  max-width: 1000px;
  margin: 0 auto;
}
/*header*/
header {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  background-color: #fff;
  z-index: 999;
  width: 100%;
}
header > a {
  margin-left: 200px;
}
.nav_pc {
  display: flex;
  gap: 30px;
  align-items: center;
  margin-right: 200px;
}
.nav_pc ul {
  display: flex;
  gap: 30px;
}
.nav_pc ul a {
  color: #313333;
  font-size: 18px;
  font-weight: bold;
}
.nav_btn {
  display: block;
  width: fit-content;
  background-color: #313333;
  padding: 15px 40px;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
}
.nav_btn:last-of-type {
  background-color: #276eb5;
}
/*mv*/
section.sec_mv {
  padding: 120px 0 0 0;
}
.sec_mv {
  position: relative;
}
.mv_txt {
  position: absolute;
  left: 0%;
  background-color: rgba(39, 110, 181, .9);
  padding: 30px 80px;
  background-image: url(../img/fv_image.webp);
  background-repeat: no-repeat;
  background-size: 13%;
  background-position: 100px 20px;
  bottom: 10%;
}
/*greeting*/
.greeting_inner {
  display: flex;
  gap: 50px;
  align-items: center;
}
.greeting_cont p span {
  display: block;
  margin-top: 1rem;
  text-align: right;
}
.greeting_iner img,
.greeting_cont {
  max-width: 50%;
}
/*business*/
.business_image {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin: 50px 0;
}
.business_cont h3 + p {
  font-weight: bold;
  font-size: 25px;
  margin-bottom: 20px;
}
.cv {
  margin: 30px auto;
}
.cv p {
  text-align: center;
  font-size: 25px;
  font-weight: bold;
  margin-top: 30px;
}
.cv a {
  color: #fff;
  font-weight: bold;
  background-color: #276eb5;
  padding: 15px 30px;
  font-size: 25px;
  display: block;
  width: fit-content;
  margin: 20px auto 0 auto;
  text-align: center;
  line-height: 1.2;  /* ★ 行間を狭める */
}

.cv a .note {
  font-size: 14px;
  font-weight: normal;
  line-height: 1.2;  /* note部分も揃える */
}
/*product*/
.pro_flex {
  display: flex;
  gap: 20px;
  margin: 40px auto;
}
.pro_flex li {
  width: calc(98%/4);
}
.pro_flex dt {
  text-align: center;
}
.pro_flex dd {
  background-image: url(../img/pro_water.webp);
  background-position: top center;
  background-repeat: no-repeat;
  background-size: 200px;
}
.pro_flex dd h4 {
  font-weight: bold;
  text-align: center;
  font-size: 20px;
  margin-top: 20px;
}
.pro_flex dd p:first-of-type {
  border: solid 1px #313333;
  text-align: center;
  margin: 10px auto;
  width: 90%;
  padding: 5px 0;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blue_back {
  background-color: #ebeff6;
  padding: 30px;
  margin-bottom: 20px;
}
.blue_back dt p {
  font-size: 30px;
  font-weight: bold;
  text-align: center;
}
.blue_back dd {
  margin-top: 20px;
  width: fit-content;
  margin: 20px auto 0 auto;
}
.blue_back dd p {
  margin: 15px 0;
}
.pro_item_flex {
  padding: 0 20px;
  display: flex;
  gap: 50px 30px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.pro_item_flex dd p {
  text-align: center;
  font-weight: bold;
  padding-top: 20px;
  font-size: 20px;
}
.pro_item_table th {
  background-color: #ebeff6;
  padding: 10px 30px;
  width: 200px;
  text-align: left;
  font-weight: bold;
}
.pro_item_table td {
  padding: 10px 30px;
  font-weight: bold;
}
.pro_item_table {
  margin: 50px auto;
}
.pro_item_table tr {
  border: solid 1px #313333;
}
.pro_item_table tr td:first-of-type {
  border-right: solid 1px #313333;
}
.goals_cont {
  background-color: #ebeff6;
  padding: 30px;
}
.goals_cont h4 {
  font-weight: bold;
  font-size: 25px;
}
.goals_head {
  display: flex;
  gap: 60px;
  align-items: center;
  margin-bottom: 30px;
}
.goals_head_l img {
  padding: 20px 0;
}
.goals_head_r {
  padding: 30px;
  background-color: #fff;
}
.goals_inner_cont {
  background-color: #fff;
  padding: 30px;
  display: flex;
  gap: 30px;
  align-items: center;
  margin-bottom: 20px;
}
.goals_inner_cont h5 {
  margin-bottom: 15px;
  font-size: 20px;
  font-weight: bold;
}
.g_l {
  width: 57%;
}
.g_r {
  display: flex;
  gap: 10px;
  justify-content: center;
  width: 40%;
}
/*atmosphere*/
.ap_flex {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin: 40px auto;
  justify-content: center;
}
.ap_inner {
  background-color: #fff;
  padding: 30px;
  text-align: center;
  width: calc(75%/3);
}
.ap_inner_wide {
  width: calc(82%/2);
}
.ap_inner_3 .inner_flex {
  gap: 70px;
}
.ap_inner > p {
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 20px;
}
.inner_flex {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}
.inner_flex p {
  text-align: center;
}
.mont {
  font-weight: bold;
  font-size: 20px;
  display: block;
}
.ap_inner_wide .mont {
  display: inline;
}
.ap_inner_wide .age_flex:nth-of-type(3),
.ap_inner_wide .age_flex:last-of-type {
  margin-top: 0;
}
.ap_inner_wide .age_flex p {
  width: 125px;
  display: block;
  text-align: left;
}
.interview dl {
  background-color: #fff;
  padding: 40px;
  display: flex;
  align-items: center;
  margin-bottom: 30px;
  gap: 30px;
}
.interview dl:nth-of-type(even) {
  flex-direction: row-reverse;
}
.interview dt {
  width: 30%;
  text-align: center;
}
.interview dd {
  width: 65%;
}
.interview dd p:first-of-type {
  display: flex;
  font-size: 30px;
  font-weight: bold;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}
.interview dd p:first-of-type span {
  font-size: 16px;
  font-weight: bold;
  line-height: 1em;
}
/*profile*/
.sec_profile table {
  max-width: 630px;
  margin: 0 auto;
}
.sec_profile table tr {
  border: solid 1px #313333;
}
.sec_profile table th {
  background-color: #ebeff6;
  font-weight: bold;
  text-align: left;
  padding: 15px 20px;
  width: 30%;
}
.sec_profile table td {
  width: 70%;
  padding: 15px 20px;
}
.sec_profile table td a {
  color: inherit;
}
.sec_profile h2,
.sec_access h2,
.sec_contact h2 {
  justify-content: center;
}
/*access*/
.sec_access dl {
  background-color: #fff;
  padding: 30px;
  margin-bottom: 30px;
}
.sec_access dl:last-of-type {
  margin-bottom: 0;
}
.sec_access dt {
  display: flex;
  align-items: center;
  gap: 20px;
}
.sec_access dt p {
  font-weight: bold;
}
.sec_access dt p:first-of-type {
  font-size: 30px;
}
.sec_access dt p:last-of-type {
  line-height: 1.2em;
}
.sec_access dd {
  display: flex;
  margin-top: 30px;
  gap: 30px;
}
.sec_access dd div {
  width: 48%;
  height: 308px;
}
.sec_access dd div img {
  object-fit: cover;
  height: 100%;
}
.sec_access dd div iframe {
  width: 100%;
  height: 100%;
}
/*contact*/
.sec_contact .wrapp > p {
  color: #276eb5;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
}
form {
  width: 600px;
  margin: 0 auto;
}
form dl {
  display: flex;
}
form dt {
  text-align: right;
  font-weight: bold;
  width: 25%;
  padding: 15px;
}
form dt span {
  color: #276eb5;
  display: inline-block;
  font-weight: bold;
  margin-right: 5px;
}
form dd {
  width: 65%;
  padding: 15px;
}
form input[type="text"],
form input[type="email"],
form input[type="tel"],
form textarea {
  border: solid 1px #313333;
  padding: 5px;
  width: 90%;
  font-size: inherit;
  font-family: inherit;
}
form ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}
.pp_cont {
  margin-top: 30px;
}
.pp_cont > p {
  text-align: center;
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 20px;
}
.pp_inner {
  height: 150px;
  overflow-y: scroll;
  border: solid 1px #313333;
  padding: 10px;
  margin-bottom: 20px;
}
.pp_inner p {
  font-size: 13px;
}
.pp_check_btn_box {
  text-align: center;
  margin-bottom: 30px;
}
input#pp_check {
  display: none;
}
.pp_check_btn {
  box-sizing: border-box;
  cursor: pointer;
  display: inline-block;
  padding: 5px 30px;
  position: relative;
  width: auto;
}
.pp_check_btn::before {
  background: #fff;
  border: 1px solid #231815;
  content: '';
  display: block;
  height: 16px;
  left: 5px;
  margin-top: -8px;
  position: absolute;
  top: 50%;
  width: 16px;
}
.pp_check_btn::after {
  border-right: 3px solid #276eb5;
  border-bottom: 3px solid #276eb5;
  content: '';
  display: block;
  height: 9px;
  left: 10px;
  margin-top: -7px;
  opacity: 0;
  position: absolute;
  top: 50%;
  transform: rotate(45deg);
  width: 5px;
}
input#pp_check:checked + .pp_check_btn::after {
  opacity: 1;
}
.pp_inner::-webkit-scrollbar {
  width: 10px;
}
.pp_inner::-webkit-scrollbar-track {
  background-color: #f2f2f2;
}
.pp_inner::-webkit-scrollbar-thumb {
  background-color: #276eb5;
}
#form_submit {
  display: block;
  width: fit-content;
  margin: 0 auto;
}
#form_submit_button {
  display: block;
  border: none;
  background-color: #276eb5;
  color: #fff;
  font-family: inherit;
  font-size: 18px;
  padding: 20px;
  width: 200px;
  font-weight: bold;
  cursor: pointer;
  transition: .3s;
}
#form_submit_button:hover {
  opacity: .8;
}
#form_submit_button.no_check {
  background-color: gray;
  pointer-events: none;
}
span.error_blank {
  color: #e60012;
  font-size: 14px;
  display: block;
}
form#mail_form dl dt span.required,
form#mail_form dl dt span.optional {
  display: none;
}
.sec_thanks {
  margin-top: 120px;
}
.thanks_inner {
  max-width: 1000px;
  margin: 0 auto;
}
.thanks_inner p {
  text-align: center;
  font-weight: bold;
}
.thanks_inner a {
  color: #fff;
  font-weight: bold;
  background-color: #276eb5;
  padding: 15px 30px;
  font-size: 18px;
  display: block;
  width: fit-content;
  margin: 30px auto 0 auto;
}
/*footer*/
footer {
  background-color: #276eb5;
  padding: 80px 0 50px 0;
}
footer img {
  display: block;
  margin: 0 auto 40px auto;
}
footer p {
  color: #fff;
  font-weight: bold;
  padding-bottom: 10px;
}
footer a {
  color: #fff;
}
footer p span {
  display: inline-block;
  border: solid 1px #fff;
  font-weight: bold;
  padding: 1px 5px;
  margin-right: 10px;
}
.footer_inner {
  width: fit-content;
  margin: 0 auto;
}
small {
  display: block;
  text-align: center;
  font-size: 13px;
  color: #fff;
  margin-top: 80px;
}
@media screen and (max-width:1500px) {
  header > a {
    margin-left: 100px;
  }
  .nav_pc {
    margin-right: 100px;
  }
}
@media screen and (max-width:1400px) {
  h1 {
    font-size: 30px;
  }
  h1 span {
    font-size: 18px;
    margin: 0;
  }
  .mv_txt {
    padding: 20px 60px;
    background-position: 100px 0;
  }
}
@media screen and (max-width:1270px) {
  header > a {
    margin-left: 30px;
  }
  .nav_pc {
    margin-right: 30px;
  }
  .sec_inner {
    max-width: 95%;
  }
  .wrapp {
    max-width: 90%;
  }
  .business_image img {
    max-width: calc(90%/3);
  }
  header > a img {
    width: 200px;
  }
  .nav_pc ul a {
    font-size: 16px;
  }
  .nav_btn {
    font-size: 16px;
  }
  section.sec_mv {
    padding-top: 95px;
  }
  .sec_thanks {
    margin-top: 95px;
  }
  .greeting_inner img {
    max-width: 50%;
  }
  .g_r {
    width: 50%;
  }
  .g_l {
    width: 50%;
  }
}
@media screen and (max-width:1080px) {
  .pro_flex dd h4 {
    font-size: 18px;
  }
}
@media screen and (max-width:1000px) {
  .goals_inner_cont {
    display: block;
  }
  .g_l,
  .g_r {
    width: 100%;
  }
  .g_l {
    margin-bottom: 15px;
  }
  .goals_inner_cont .blue_back dt p {
    font-size: 25px;
  }
  .pro_item_flex dd p {
    font-size: 18px;
  }
  .pro_flex {
    flex-wrap: wrap;
    justify-content: center;
  }
  .pro_flex li {
    width: calc(95%/2);
  }
  header .PC {
    display: none;
  }
  header .SP {
    display: block;
  }
  /*nav*/
  nav {
    display: block;
    position: fixed;
    top: 0;
    left: -300px;
    bottom: 0;
    width: 300px;
    background: #ffffff;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: all .5s;
    z-index: 3;
    opacity: 0;
  }
  .open nav {
    left: 0;
    opacity: 1;
  }
  nav .inner {
    padding: 25px;
  }
  nav .inner ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  nav .inner ul li {
    position: relative;
    margin: 0;
    border-bottom: 1px solid #333;
  }
  nav .inner ul li a {
    display: block;
    color: #333;
    font-size: 14px;
    padding: 1em;
    text-decoration: none;
    transition-duration: 0.2s;
  }
  nav .inner ul li a:hover {
    background: #e4e4e4;
  }
  @media screen and (max-width: 767px) {
    nav {
      left: -220px;
      width: 220px;
    }
  }
  /*.toggle_btn*/
  .toggle_btn {
    display: block;
    position: fixed;
    top: 30px;
    right: 30px;
    width: 30px;
    height: 30px;
    transition: all .5s;
    cursor: pointer;
    z-index: 3;
  }
  .toggle_btn span {
    display: block;
    position: absolute;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: #333;
    border-radius: 4px;
    transition: all .5s;
  }
  .toggle_btn span:nth-child(1) {
    top: 4px;
  }
  .toggle_btn span:nth-child(2) {
    top: 14px;
  }
  .toggle_btn span:nth-child(3) {
    bottom: 4px;
  }
  .open .toggle_btn span {
    background-color: #fff;
  }
  .open .toggle_btn span:nth-child(1) {
    -webkit-transform: translateY(10px) rotate(-315deg);
    transform: translateY(10px) rotate(-315deg);
  }
  .open .toggle_btn span:nth-child(2) {
    opacity: 0;
  }
  .open .toggle_btn span:nth-child(3) {
    -webkit-transform: translateY(-10px) rotate(315deg);
    transform: translateY(-10px) rotate(315deg);
  }
  /*mask*/
  #mask {
    display: none;
    transition: all .5s;
  }
  .open #mask {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: .8;
    z-index: 2;
    cursor: pointer;
  }
  .greeting_inner {
    display: block;
  }
  .greeting_inner img {
    max-width: 100%;
    display: block;
    margin: 0 auto 30px auto;
  }
  .greeting_cont {
    max-width: 100%;
  }
  h2 {
    justify-content: center;
  }
  .business_image {
    gap: 15px;
  }
  .business_image img {
    max-width: calc(95%/3);
  }
  .nav_btn {
    width: 100%;
    margin: 15px 0;
    padding: 15px 0;
    text-align: center;
  }
  h3 {
    font-size: 25px;
  }
  .business_cont h3 + p {
    font-size: 20px;
  }
  .cv p {
    font-size: 20px;
  }
  .cv a {
    font-size: 20px;
  }
  .goals_cont h4 {
    font-size: 20px;
  }
  .goals_inner_cont h5 {
    font-size: 18px;
  }
  .slick-slide img {
    height: 600px;
    object-fit: cover;
  }
  .blue_back dt p {
    font-size: 25px;
  }
  .goals_inner_cont h5 {
    text-indent: -1.7rem;
    padding-left: 1.7rem;
    line-height: 1.3em;
  }
}
@media screen and (max-width:927px) {
  .ap_inner {
    width: calc(65%/3);
  }
  .ap_inner_wide {
    width: calc(74%/2);
  }
}
@media screen and (max-width:900px) {
  .sec_access dd {
    display: block;
  }
  .sec_access dd div {
    width: 100%;
  }
  .sec_access dd div img {
    width: 100%;
    object-fit: contain;
  }
  .sec_access dd div:first-of-type {
    margin-bottom: 30px;
    height: fit-content;
  }
  .sec_access dd div:first-of-type img {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
  }
  .sec_access dt {
    justify-content: center;
  }
}
@media screen and (max-width:850px) {
  .slick-slide img {
    height: 100.588vw;
  }
  .slick-slide:first-of-type img {
    object-position: 75% 0;
  }
  .slick-slide:last-of-type img {
    object-position: 62% 0;
  }
}
@media screen and (max-width:810px) {
  .goals_head {
    display: block;
  }
  .goals_head_r {
    margin: 20px auto 0 auto;
    display: block;
    max-width: 75%;
  }
  .ap_inner {
    width: calc(73%/2);
  }
  .ap_inner_wide:last-of-type {
    width: 84%;
  }
}
@media screen and (max-width:780px) {
  .pro_flex dt {
    display: none;
  }
  .pro_flex img.SP {
    display: block;
    margin: 15px auto;
  }
  footer {
    margin-bottom: 54px;
  }
  .float.SP {
    display: flex;
    position: fixed;
    bottom: 0;
    width: 100%;
  }
  .float.SP a {
    display: flex;
    justify-content: center;
    gap: 5px;
    background-color: #276eb5;
    color: #fff;
    text-align: center;
    width: 50%;
    padding: 15px 0;
  }
  .float.SP a img {
    width: 25px;
  }
  .float.SP a:last-of-type {
    background-color: #313333;
  }
  .sec_inner {
    max-width: 90%;
  }
  .business_image {
    flex-wrap: wrap;
    justify-content: center;
  }
  .business_image img {
    max-width: 45%;
  }
  form {
    width: 90%;
  }
  form dl {
    display: block;
    width: 420px;
    margin: 0 auto;
  }
  form dt {
    text-align: left;
    padding-bottom: 0;
    width: 90%;
  }
  form dd {
    width: 90%;
  }
  .interview dl {
    display: block;
  }
  .pro_item_table th {
    width: 100px;
    padding: 10px 15px;
  }
  .interview dt {
    margin: 0 auto 20px auto;
  }
  .interview dd p:first-of-type {
    justify-content: center;
  }
  .interview dd {
    width: 100%;
  }
  .sec_access dt p:first-of-type {
    font-size: 25px;
  }
  h1 .SP {
    display: block;
  }
  .mv_txt {
    background-size: 30%;
    max-width: 70%;
    bottom: 3%;
  }
  h3 {
    font-size: 20px;
  }
  .blue_back dt p {
    font-size: 20px;
  }
  .pro_item_flex dd p {
    font-size: 16px;
  }
}
@media screen and (max-width:650px) {
  section {
    padding: 50px 0;
  }
  .sec_access dt {
    display: block;
    text-align: center;
  }
  .sec_access dt p:first-of-type {
    margin-bottom: 15px;
  }
  h2 {
    font-size: 30px;
  }
  h2 span {
    font-size: 16px;
  }
  .g_r img {
    width: calc(90%/3);
  }
  h1 {
    padding-left: 50px;
  }
}
@media screen and (max-width:576px) {
  .goals_cont {
    padding: 30px 15px;
  }
  .ap_inner {
    width: 83%;
  }
  h2 span {
    font-size: 14px;
  }
  h2 {
    font-size: 25px;
  }
}
@media screen and (max-width:546px) {
  .pro_item_table {
    width: fit-content;
  }
  .pro_item_table th,
  .pro_item_table td {
    width: 50%;
    text-align: center;
  }
  .pro_item_table.PC {
    display: none;
  }
  .pro_item_table.SP {
    display: block;
  }
  .pro_item_table th .ap_inner {
    width: 84%;
  }
  h1 {
    font-size: 25px;
    padding-left: 0;
  }
  h1 span {
    font-size: 16px;
  }
  .mv_txt {
    padding: 20px 30px;
    background-position: 10% 20px;
    max-width: 80%;
  }
  form {
    width: 100%;
  }
  .wrapp {
    width: 100%;
    max-width: 100%;
  }
  form dl {
    width: 100%;
  }
  .pp_check_btn {
    padding-right: 0;
  }
  .cv p {
    font-size: 18px;
  }
  .cv a {
    font-size: 18px;
  }
}
@media screen and (max-width:500px) {
  .sec_access dl {
    padding: 30px 15px;
  }
  .interview dl {
    padding: 30px;
  }
  .interview dd p:first-of-type {
    font-size: 25px;
  }
  .sec_access dt p .SP {
    display: block;
  }
  .sec_profile table th .SP {
    display: block;
  }
  .sec_profile table th {
    text-align: center;
  }
  .pro_flex {
    display: block;
  }
  .pro_flex li {
    width: 100%;
    margin-bottom: 30px;
  }
  .pro_flex img {
    max-width: 200px;
  }
  .pro_flex dd {
    background-size: 150px;
  }
  footer img {
    width: 230px;
  }
  header > a {
    margin-left: 0;
  }
  header > a img {
    width: 150px;
  }
  header {
    padding: 10px;
  }
  section.sec_mv {
    padding-top: 62px;
  }
  .sec_thanks {
    margin-top: 62px;
  }
  .toggle_btn {
    top: 15px;
    right: 15px;
  }
}
/*animation*/
header,
.sec_mv {
  -webkit-animation: fadeIn 2s ease 0s 1 normal;
  animation: fadeIn 2s ease 0s 1 normal;
}
@keyframes fadeIn {
  0% {
    opacity: 0
  }
  100% {
    opacity: 1
  }
}
@-webkit-keyframes fadeIn {
  0% {
    opacity: 0
  }

  100% {
    opacity: 1
  }
}
a {
  transition: .3s;
}
a:hover {
  opacity: .8;
  transition: .3s;
}
.up {
  transition: 0.8s ease-in-out;
  transform: translateY(30px);
  opacity: 0;
}
.up.on {
  transform: translateY(0);
  opacity: 1.0;
}