html {
  font-size: 62.5%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: "Noto Sans JP", sans-serif, "Yu Gothic", "Meiryo";
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  font-size: 1.6rem;
  font-feature-settings: "palt";
  line-height: 1.6;
  letter-spacing: 0.05rem;
  color: #000;
}

.pc {
  display: none;
}

.sp {
  display: block;
}

.sp-inline {
  display: inline;
}

h1, h2, h3 {
  font-family: "Montserrat", sans-serif, "BIZ UDPGothic";
}

img {
  width: 100%;
  height: auto;
  vertical-align: top;
}

a {
  color: #019FCF;
  text-decoration: none;
  transition: all 0.5s ease 0s;
}

header {
  margin: 3rem auto 5rem;
  display: flex;
  align-items: center;
  width: 1300px;
  font-size: 2rem;
  line-height: 1.3;
}
header figure {
  margin-right: 1.5em;
  width: 10em;
}
header h1 em {
  font-weight: 700;
  background: linear-gradient(transparent 80%, #F4B0BD 20%);
}
header h1 small {
  display: block;
  margin-top: 0.5rem;
  font-size: 3rem;
  font-weight: 400;
}
header .link_btn {
  display: flex;
  flex-direction: column;
  margin-left: auto;
}
header .link_btn a {
  margin-left: auto;
  padding: 1.5rem 2.5rem;
  background: #019FCF;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  border-radius: 3rem;
}
header .link_btn a:nth-child(1) {
  margin-bottom: 1rem;
}
header .link_btn a:nth-child(1):hover {
  background: #F4B0BD;
}
header .link_btn a:nth-child(2) {
  padding: 1.5rem 3.2rem;
  color: #019FCF;
  background: #fff;
  border: 1px solid #019FCF;
}
header .link_btn a:nth-child(2):hover {
  color: #fff;
  background: #8bcee3;
}

main section {
  margin: 0 auto 8rem;
  width: 1300px;
}
main section .title {
  position: relative;
  display: flex;
  justify-content: space-between;
  margin-bottom: 5rem;
  padding-top: 1.5rem;
  border-top: 2px solid #ccc;
}
main section .title h3 {
  font-size: 2.5rem;
  line-height: 1.3;
}
main section .title h3 small {
  display: block;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.07rem;
}
main section .title::before, main section .title:after {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  height: 2px;
}
main section .title::before {
  width: 20rem;
  background: #fff;
}
main section .title:after {
  width: 17rem;
  background: #000;
}
main section#intro {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5rem 0 5rem 7rem;
  color: #fff;
  background: linear-gradient(233.51deg, #00BAF2 -50.54%, #F4AEBD 81.04%);
  border-radius: 3rem;
}
main section#intro div {
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}
main section#intro div h2 {
  position: relative;
  margin-bottom: 3rem;
  font-size: 3.5rem;
  border-bottom: 3px solid #fff;
}
main section#intro div h2:before, main section#intro div h2:after {
  content: "";
  position: absolute;
}
main section#intro div h2::before {
  bottom: -24px;
  left: 50%;
  margin-left: -15px;
  border: 12px solid transparent;
  border-top: 12px solid #cfb0c5;
  z-index: 2;
}
main section#intro div h2:after {
  bottom: -30px;
  left: 50%;
  margin-left: -17px;
  border: 14px solid transparent;
  border-top: 14px solid #fff;
  z-index: 1;
}
main section#intro div ul li {
  padding: 0.8rem 0;
  font-size: 2.5rem;
  font-weight: 700;
  border-bottom: 1px dashed #fff;
  text-shadow: 0 0 10px rbga(0, 0, 0, 0.25);
}
main section#intro figure {
  margin-right: -3rem;
  width: 550px;
}
main section#youtube .mov {
  margin: auto;
  width: 90%;
  aspect-ratio: 16/9;
}
main section#youtube .mov iframe {
  width: 100%;
  height: 100%;
}
main section#youtube .btn_ytb {
  display: block;
  margin: 3rem auto;
  padding: 1.5rem 0;
  width: 30%;
  text-align: center;
  color: #fff;
  font-weight: 700;
  background: #FF2E2E;
  border-radius: 3rem;
}
main section#youtube .btn_ytb:hover {
  background: #000;
}
main section#sns ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: auto;
  width: 65%;
}
main section#sns ul a {
  display: block;
  font-size: 8rem;
  color: #000;
}
main section#sns ul a figure {
  width: 22rem;
}
main section#sns ul a:hover {
  color: #019FCF;
}
main section#sns #svg .cls-1 {
  transition: all 0.5s ease 0s;
}
main section#sns #svg:hover .cls-1 {
  fill: #019FCF;
}
main section#doc {
  padding: 8rem 0;
  width: 100%;
  background: linear-gradient(233.51deg, #00BAF2 -50.54%, #F4AEBD 81.04%);
}
main section#doc .c-inner {
  padding: 5rem;
  background: #fff;
  border-radius: 3rem;
}
main section#doc figure {
  margin-bottom: 3rem;
}
main section#doc p {
  margin: 0 auto 2rem;
  width: 80%;
  font-size: 2rem;
  line-height: 1.8;
}
main section#doc p:nth-of-type(1) {
  margin-top: -2em;
}
main section#senryu .c-inner {
  position: relative;
  padding: 5rem;
  background: #F8EFDC;
}
main section#senryu .c-inner:nth-of-type(3) {
  margin-top: 3rem;
  padding: 0;
  width: 60%;
  background: #fff;
}
main section#senryu .c-inner:nth-of-type(3) dl {
  flex-wrap: wrap;
}
main section#senryu .c-inner:nth-of-type(3) dl:nth-of-type(3) {
  margin-bottom: 3rem;
}
main section#senryu .c-inner:nth-of-type(3) dl:nth-of-type(3) dt, main section#senryu .c-inner:nth-of-type(3) dl:nth-of-type(3) dd {
  margin-bottom: 2rem;
}
main section#senryu .c-inner:nth-of-type(3) p {
  margin: 0;
  padding: 2rem 0 0;
  border: none;
}
main section#senryu figure {
  position: absolute;
}
main section#senryu figure:nth-of-type(1) {
  top: -1.5rem;
  left: -9rem;
  width: 25rem;
}
main section#senryu figure:nth-of-type(2) {
  bottom: 40%;
  left: -13rem;
  width: 20rem;
}
main section#senryu figure:nth-of-type(3) {
  bottom: 8rem;
  right: -9rem;
  width: 18rem;
}
main section#senryu .senryu_sample {
  padding: 3rem 8rem;
  background: #fff;
  border-radius: 3rem;
}
main section#senryu .senryu_sample dl {
  display: flex;
  justify-content: space-between;
  color: #785A23;
}
main section#senryu .senryu_sample dl dt {
  padding: 2rem 0;
  width: 70%;
  font-family: "Zen Antique Soft", system-ui;
  font-size: 2rem;
  font-weight: 400;
}
main section#senryu .senryu_sample dl dd {
  padding: 2rem 0;
  width: 30%;
  font-size: 1.4rem;
  text-align: right;
}
main section#senryu .senryu_sample dl:not(:last-child) dt, main section#senryu .senryu_sample dl:not(:last-child) dd {
  border-bottom: 1px solid #ccc;
}
main section#links {
  margin-bottom: 8rem;
}
main section#links dl {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  font-size: 1.8rem;
}
main section#links dl dt {
  padding: 1em 0;
  width: 25%;
  border-bottom: 1px solid #ccc;
}
main section#links dl dd {
  padding: 1em 0;
  width: 75%;
  border-bottom: 1px solid #ccc;
}
main section#contact_form {
  padding-top: 3rem;
}
main section#contact_form h4 {
  color: #FF2E2E;
}
main section#contact_form .formTable {
  margin: auto;
  width: 80%;
  text-align: left;
}
main section#contact_form .formTable th, main section#contact_form .formTable td {
  padding: 1rem 0;
  border-bottom: 1px solid #ccc;
}
main section#contact_form .btn_form {
  display: flex;
  justify-content: space-between;
  width: 50%;
  margin: 5rem auto;
}
main section#contact_form .btn_form .submit-btn:hover {
  background: #000;
}
main section#contact_form .btn_form .submit-btn.back-btn {
  background: #aaa;
}
main section#contact_form .btn_form .submit-btn.back-btn:hover {
  background: #ccc;
}
main section#contact_form .c-inner {
  text-align: center;
}
main section#contact_form .c-inner .submit-btn {
  display: inline-block;
  margin-top: 5rem;
  padding: 1rem 4rem;
  color: #fff;
  font-weight: 700;
  text-align: center;
  background: #019FCF;
  border-radius: 3rem;
}

footer {
  position: relative;
  margin-top: auto;
  padding: 2rem;
  color: #fff;
  font-size: 1.4rem;
  background: #000;
  text-align: center;
}
footer .pagetop {
  right: 1em;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 80px;
  height: 80px;
  font-size: 2.5rem;
  background: #019FCF;
  border-radius: 50%;
  color: #fff;
}
footer .pagetop:hover {
  background-color: #F4B0BD;
}

.c-inner {
  margin: 0 auto;
  max-width: 1000px;
}

form input,
form button,
form select,
form textarea {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: transparent;
  border: none;
  border-radius: 0;
  font: inherit;
  outline: none;
}
form textarea {
  resize: vertical;
}
form input[type=checkbox],
form input[type=radio] {
  display: none;
}
form input[type=submit],
form input[type=button],
form label,
form button,
form select {
  cursor: pointer;
}
form select::-ms-expand {
  display: none;
}
form input,
form textarea {
  padding: 1rem;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
}
form .btn_form {
  text-align: center;
}
form .btn_form .submit-btn {
  margin: auto;
  padding: 1rem 4rem;
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  background: #019FCF;
  border-radius: 3rem;
  transition: all 0.5s ease 0s;
}
form .btn_form .submit-btn:hover {
  background: #000;
}
form em {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.5rem;
  font-size: 1.2rem;
  color: #FF2E2E;
  line-height: 1;
  border: 1px solid #FF2E2E;
  border-radius: 0.5rem;
}
form dl {
  display: flex;
  justify-content: space-between;
  padding: 3rem 0;
  border-bottom: 1px solid #ccc;
}
form dl dt {
  width: 30%;
  font-weight: 700;
}
form dl dd {
  width: 70%;
}
form p {
  margin-bottom: 3rem;
  padding: 3rem 0;
  border-bottom: 1px solid #ccc;
}

/* SP */
@media screen and (max-width: 599px) {
  .pc {
    display: block;
  }
  .sp {
    display: none;
  }
  .sp-inline {
    display: none;
  }
  header {
    flex-direction: column;
    margin: 3rem auto;
    width: 90%;
    font-size: 1.5rem;
    text-align: center;
  }
  header figure {
    margin-bottom: 1.5rem;
    margin-right: 0;
    width: 10em;
  }
  header h1 small {
    font-size: 2rem;
  }
  header a {
    margin: 2.5rem auto 0;
    padding: 1.5rem;
    font-size: 1.8rem;
  }
  main {
    overflow: hidden;
  }
  main section {
    margin: 0 auto 5rem;
    width: 95%;
  }
  main section .title {
    margin-bottom: 5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #ccc;
  }
  main section .title h3 {
    margin-right: 1rem;
    width: 70%;
    font-size: 2.5rem;
    line-height: 1.3;
  }
  main section .title h3 small {
    font-size: 1.3rem;
  }
  main section .title p {
    font-size: 1.3rem;
  }
  main section .title:before {
    width: 10rem;
  }
  main section .title:after {
    width: 8rem;
  }
  main section#intro {
    flex-direction: column;
    padding: 3rem;
  }
  main section#intro div h2 {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    font-size: 2.5rem;
    line-height: 1.3;
    text-align: center;
  }
  main section#intro div h2::before {
    border-top: 12px solid #8db3d3;
  }
  main section#intro div ul li {
    padding: 1rem 0;
    line-height: 1.3;
  }
  main section#intro figure {
    margin-top: -1rem;
    margin-right: 0;
    width: 100%;
  }
  main section#youtube .mov {
    width: 100%;
  }
  main section#youtube .btn_ytb {
    width: 80%;
  }
  main section#sns ul {
    width: 100%;
  }
  main section#sns ul a {
    font-size: 5rem;
  }
  main section#sns ul a figure {
    width: 12rem;
  }
  main section#doc {
    padding: 3rem 2rem;
    width: 100%;
  }
  main section#doc .c-inner {
    padding: 2rem;
  }
  main section#doc figure {
    margin-bottom: 5rem;
  }
  main section#doc p {
    width: 100%;
    font-size: 1.8rem;
    line-height: 1.8;
  }
  main section#senryu .title {
    margin-bottom: 8rem;
  }
  main section#senryu .c-inner {
    padding: 2rem;
  }
  main section#senryu .c-inner:nth-of-type(3) {
    width: 100%;
  }
  main section#senryu figure:nth-of-type(1) {
    top: -4rem;
    left: -3rem;
    width: 20rem;
  }
  main section#senryu figure:nth-of-type(2) {
    bottom: -2%;
    left: -5rem;
    width: 15rem;
  }
  main section#senryu figure:nth-of-type(3) {
    top: -6rem;
    bottom: auto;
    right: 1rem;
    width: 12rem;
    transform: rotate(30deg);
  }
  main section#senryu .senryu_sample {
    padding: 2rem;
  }
  main section#senryu .senryu_sample dl {
    flex-direction: column;
  }
  main section#senryu .senryu_sample dl dt {
    padding: 1rem 0 0;
    width: 100%;
    font-size: 2.1rem;
    border-bottom: none !important;
  }
  main section#senryu .senryu_sample dl dd {
    padding: 0 0 1rem;
    width: 100%;
    font-size: 1.4rem;
    text-align: right;
  }
  main section#links dl {
    flex-direction: column;
  }
  main section#links dl dt {
    padding-bottom: 0;
    width: 100%;
    border-bottom: none;
  }
  main section#links dl dd {
    padding-top: 0;
    width: 100%;
  }
  main section#contact_form .title {
    align-items: center;
  }
  main section#contact_form .title h3 {
    width: 40%;
  }
  main section#contact_form .title p {
    text-align: left;
  }
  main section#contact_form .formTable {
    width: 90%;
  }
  main section#contact_form .formTable tr {
    display: flex;
    flex-direction: column;
  }
  main section#contact_form .formTable th, main section#contact_form .formTable td {
    width: 100%;
    border-bottom: 1px solid #ccc;
  }
  main section#contact_form .formTable th {
    padding: 1rem 0 0;
    border-bottom: none;
  }
  main section#contact_form .formTable td {
    padding: 0 0 1rem;
  }
  main section#contact_form .btn_form {
    flex-direction: column;
    width: 80%;
    margin: 5rem auto;
  }
  main section#contact_form .btn_form .submit-btn {
    margin-top: 2rem !important;
    width: 100%;
  }
  main section#contact_form .c-inner {
    text-align: center;
  }
  main section#contact_form .c-inner .submit-btn {
    display: inline-block;
    margin-top: 5rem;
  }
  footer .pagetop {
    width: 50px;
    height: 50px;
  }
  .c-inner {
    max-width: 95%;
  }
  form input,
  form textarea {
    width: 100%;
  }
  form .btn_form .submit-btn {
    margin: auto;
    padding: 1rem 4rem;
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    background: #019FCF;
    border-radius: 3rem;
    transition: all 0.5s ease 0s;
  }
  form em {
    display: inline-block;
    margin-left: 0.5rem;
    padding: 0.5rem;
    font-size: 1.2rem;
    color: #FF2E2E;
    line-height: 1;
    border: 1px solid #FF2E2E;
    border-radius: 0.5rem;
  }
  form dl {
    flex-direction: column;
  }
  form dl dt {
    margin-bottom: 1rem;
    width: 100%;
  }
  form dl dd {
    width: 100%;
  }
  form p {
    margin-bottom: 3rem;
    padding: 3rem 0;
    border-bottom: 1px solid #ccc;
  }
}