.sec__ttl {
  margin: 0 0 50px; }
  .sec__ttl img {
    margin-left: 0; }

.sec__subttl {
  max-width: 1000px;
  margin: 0 auto 40px;
  padding: 15px;
  font-size: 32px;
  color: #fff;
  background-color: #66ccff;
  text-align: center;
  border-radius: 35px; }

.sec__content {
  max-width: 1040px;
  margin: 0 auto 70px;
  padding: 0 20px; }

.sec__subttl_2 {
  display: inline-block;
  position: relative;
  left: 50%;
  -webkit-transform: translate(-50%, 0);
  -ms-transform: translate(-50%, 0);
  transform: translate(-50%, 0);
  font-size: 26px;
  color: #00abeb;
  border-bottom: 2px dashed #00abeb;
  text-align: center;
  margin-bottom: 40px; }

.sec__txt {
  font-size: 18px;
  line-height: 1.67; }

.sec__txt_2 {
  font-size: 20px;
  margin-bottom: 45px; }

.txt__note {
  font-size: 16px;
  color: #666666;
  margin-top: 25px;
  padding-left: 1em;
  text-indent: -1em; }

a.c5-link {
  color: #487ca3;
  text-decoration: underline; }

.sec_1 img {
  margin-bottom: 30px; }

.sec__tips {
  max-width: 1000px;
  margin: 0 auto 80px;
  border-radius: 10px;
  background: url("../img/tips.png") no-repeat 10px 20px #b2e5ff;
  padding: 30px 10px 10px; }
  .sec__tips .tips__ttl {
    font-size: 30px;
    color: #00abeb;
    margin-bottom: 10px;
    text-align: center; }
  .sec__tips .sec__txt {
    text-align: center;
    margin-bottom: 15px; }
  .sec__tips .sec__tips_inner {
    border-radius: 10px;
    background-color: #fff;
    padding: 40px; }
    .sec__tips .sec__tips_inner .inner__ttl {
      max-width: 270px;
      font-size: 20px;
      color: #fff;
      background-color: #00abeb;
      margin-bottom: 10px;
      padding: 0 10px; }
    .sec__tips .sec__tips_inner img {
      margin-bottom: 35px; }
    .sec__tips .sec__tips_inner .sec__txt {
      text-align: left; }
    .sec__tips .sec__tips_inner .inner__bottom .sec__txt {
      margin-top: 40px;
      margin-bottom: 0; }

.sec_3 img {
  margin-bottom: 40px; }

.sec_4 .mov__wrap {
  position: relative;
  max-width: 560px;
  margin: 0 auto 70px; }
  .sec_4 .mov__wrap::before {
    content: "";
    display: block;
    width: 100%;
    padding-top: 56.25%; }
  .sec_4 .mov__wrap iframe {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%; }

.sec_4 .sec__txt {
  margin-bottom: 45px; }

.color__txt {
  font-size: 24px;
  color: #00abeb;
  margin-bottom: 10px; }

@media screen and (max-width: 840px) {
  .sec__tips .tips__ttl {
    text-align: right; } }

@media screen and (max-width: 640px) {
  .sec__content {
    margin-bottom: 35px;
    padding: 0; }
  .sec__ttl {
    margin: 0 0 25px; }
    .sec__ttl img {
      max-width: 70%; }
  .sec__subttl {
    border-radius: 15px;
    font-size: 17px;
    margin-bottom: 20px;
    padding: 8px;
    line-height: 1.5; }
  .sec__subttl_2 {
    font-size: 16px;
    margin-bottom: 20px; }
  .sec__txt {
    font-size: 12px; }
  .sec__txt_2 {
    font-size: 12px;
    margin-bottom: 20px; }
  .txt__note {
    margin-top: 10px;
    font-size: 11px; }
  .sec__tips {
    margin-bottom: 40px;
    border-radius: 5px;
    background-position: 5px 17px;
    background-size: 30px auto;
    padding: 15px 10px 10px; }
    .sec__tips .tips__ttl {
      font-size: 15px;
      letter-spacing: -1px; }
    .sec__tips .sec__tips_inner {
      border-radius: 5px;
      padding: 20px 10px; }
      .sec__tips .sec__tips_inner .inner__ttl {
        max-width: 60%;
        font-size: 12px; }
      .sec__tips .sec__tips_inner img {
        max-width: 90%;
        margin-bottom: 20px; }
      .sec__tips .sec__tips_inner .inner__bottom .sec__txt {
        margin-top: 20px; }
  .sec_3 img {
    margin-bottom: 20px; }
  .sec_4 .mov__wrap {
    margin-bottom: 30px; }
  .sec_4 .sec__txt {
    margin-bottom: 15px; }
  .color__txt {
    font-size: 15px; } }