@font-face {
  font-family: 'Material Icons';
  font-style: normal;
  font-weight: 400;
  src: url(../lib/material-design-icons-3.0.1/MaterialIcons-Regular.eot); /* For IE6-8 */
  src: local('Material Icons'),
       local('MaterialIcons-Regular'),
       url(../lib/material-design-icons-3.0.1/MaterialIcons-Regular.woff2) format('woff2'),
       url(../lib/material-design-icons-3.0.1/MaterialIcons-Regular.woff) format('woff'),
       url(../lib/material-design-icons-3.0.1/MaterialIcons-Regular.ttf) format('truetype');
}

.material-icons {
  font-family: 'Material Icons';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;  /* Preferred icon size */
  display: inline-block;
  line-height: 1;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: normal;
  white-space: nowrap;
  direction: ltr;

  /* Support for all WebKit browsers. */
  -webkit-font-smoothing: antialiased;
  /* Support for Safari and Chrome. */
  text-rendering: optimizeLegibility;

  /* Support for Firefox. */
  -moz-osx-font-smoothing: grayscale;

  /* Support for IE. */
  font-feature-settings: 'liga';
}

/* Custom Stylesheet */
/**
 * Use this file to override Materialize files so you can update
 * the core Materialize files in the future
 *
 * Made By MaterializeCSS.com
 */

.icon-block {
  padding: 0 15px;
}
.icon-block .material-icons {
	font-size: inherit;
}

/* Custom Stylesheet */
html {
  font-size: 16px;
}
body {
  font-family: Roboto,"メイリオ", "Meiryo", "游ゴシック体", "Yu Gothic", YuGothic, "ヒラギノ角ゴ Pro", "Hiragino Kaku Gothic Pro", sans-serif;
  color: #003d54;
}
nav {
  box-shadow: none;
  /* main nav */
  /* breadcrumbs */
}
#fixed-nav {
  position: fixed;
  z-index: 10;
  top: 0;
  width: 100%;
}
/**
nav .brand-logo {
  line-height: 64px;
}
nav .brand-logo img {
  vertical-align: middle;
}
*/
nav ul a {
  color: #a3a5a8;
  display: inline-block;
}
nav ul a:hover {
  transition: background-color 0.1s, color 1s;
  color: white;
}
nav ul li:before {
  content: '';
  border-left: 1px solid #a3a5a8;
}
nav ul li:first-child:before {
  content: none;
  border: none;
}
nav ul.k3tunnel-btn-sns {
  padding: 13px 0;
}
nav ul.k3tunnel-btn-sns li {
  margin-left: 20px;
  display: inline-block;
  border-radius: 19px;
  width: 38px;
  height: 38px;
  overflow: hidden;
}
nav ul.k3tunnel-btn-sns li:before {
  content: none;
  border: none;
}
nav ul.k3tunnel-btn-sns a {
  background: #fff;
  padding: 0;
  margin: 0;
  display: block;
  color: #000;
}
nav ul.k3tunnel-btn-sns a:hover {
  background: #fff;
}
nav ul.k3tunnel-btn-sns i {
  overflow: hidden;
  display: block;
  width: 38px;
  height: 1px;
  padding-top: 38px;
  font-size: 1px;
  background: no-repeat center center;
  background-size: 90%;
}
nav ul.k3tunnel-btn-sns .k3tunnel-icon-tw {
  background-image: url(../img/icon-tw.png);
}
nav ul.k3tunnel-btn-sns .k3tunnel-icon-fb {
  background-image: url(../img/icon-fb.png);
}
nav.k3tunnel-breadcrumbs {
  background: #fff;
  height: 43px;
  line-height: 43px;
}
nav.k3tunnel-breadcrumbs .breadcrumb {
  color: #5e7c8b;
  font-size: 12px;
}
nav.k3tunnel-breadcrumbs .breadcrumb:before {
  content: '＞';
  color: #5e7c8b;
  font-size: 12px;
  font-family: inherit;
  vertical-align: baseline;
  margin: 0 3px;
}
nav.k3tunnel-breadcrumbs .breadcrumb:last-child {
  color: #5e7c8b;
}
nav.k3tunnel-breadcrumbs .breadcrumb:hover {
  opacity: .5;
  transition: opacity .2s;
}

.fullheight {
  height: auto;
  min-height: 100vh; /** calc(100vh - 64px) */
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top:100px;
}

.halfheight {
  height: auto;
  min-height: calc(100vh - 300px);/** calc(50vh - (64px/2))*/
  position: relative;
  display: flex;

  justify-content: center;
    /**
  align-items: center;
  **/
}
.fullheight > .container,
.halfheight > .container {
  margin: 0;
}

.k3tunnel-page-header {
  overflow: hidden;
  background: center center;
  background-size: contain;
  padding: 23px 0;
}
.k3tunnel-page-header .k3tunnel-mission-no {
  width: 105px;
  height: 105px;
  border-radius: 60px;
  color: #fff;
  margin: 0;
  padding: 12px 0;
  font-size: 16.8px;
  font-style: italic;
  font-family: Arial;
  text-align: center;
  line-height: 2em;
}
.k3tunnel-page-header .k3tunnel-mission-no strong {
  letter-spacing: 2px;
  display: block;
  font-size: 43.2px;
}
.k3tunnel-page-header .k3tunnel-category {
  margin: 0;
}
.k3tunnel-page-header .k3tunnel-category li {
  min-width: 125px;
  text-align: center;
  line-height: 35px;
  height: 35px;
  background: #fff;
  margin: 10px 10px 10px 0;
  font-weight: bold;
}
.k3tunnel-page-header .k3tunnel-category li.k3tunnel-category-02 {
  background: #5e7c8b;
  color: #fff;
}
.k3tunnel-page-header h1 {
  margin: 5px 0;
  font-size: 36px;
  color: #003d54;
  max-height:370px;
}
.k3tunnel-page-header.k3tunnel-header-01 {
  background-image: url(../img/head-01.png);
}
.k3tunnel-page-header.k3tunnel-header-02 {
  background-image: url(../img/head-02.png);
}
.k3tunnel-page-header.k3tunnel-header-02 .k3tunnel-mission-no {
  background: #d1a03b;
}
.k3tunnel-page-header.k3tunnel-header-02 li.k3tunnel-category-01 {
  color: #e1bd5f;
}
.k3tunnel-page-header.k3tunnel-header-03 {
  background-image: url(../img/head-03.png);
}
.k3tunnel-page-header.k3tunnel-header-03 .k3tunnel-mission-no {
  background: #eb7065;
}
.k3tunnel-page-header.k3tunnel-header-03 .k3tunnel-category-01 {
  color: #eb7065;
}
.k3tunnel-page-header.k3tunnel-header-04 {
  background-image: url(../img/head-04.png);
}
.k3tunnel-page-header.k3tunnel-header-04 .k3tunnel-mission-no {
  background: #987289;
}
.k3tunnel-page-header.k3tunnel-header-04 .k3tunnel-category-01 {
  color: #987289;
}
.k3tunnel-page-header.k3tunnel-header-05 {
  background-image: url(../img/head-05.png);
}
.k3tunnel-page-header.k3tunnel-header-05 .header {
  color: #fff;
}
main {
  /* index */
  position: relative;
}

main .k3tunnel-gray {
  color: #5e7c8b;
}
main .k3tunnel-underline {
  border-bottom: 1px solid #5e7c8b;
}
main .k3tunnel-underline-light {
  border-bottom: 1px solid #c8c8c8;
}
main .k3tunnel-bg-light {
  background-color: #f2f2f2;
}
main .k3tunnel-bg-grid {
  background-image: url(../img/bg-grid.png);
  background-repeat: center center;
}
main .k3tunnel-border {
  border: 1px solid #c8c8c8;
  padding: 20px;
}
main .k3tunnel-icon-i {
  background: #5e7c8b url(../img/icon-info.png) no-repeat center center;
  width: 25px;
  height: 25px;
  display: inline-block;
  border-radius: 15px;
  vertical-align: middle;
  margin-right: 8px;
}
main .container {
  max-width: 784px;
  line-height: 1.6em;
  overflow: hidden;
}
main .container .section {
  padding: 30px 0 50px 0;
}
main .container h2 {
  font-size: 30px;
  line-height: 1.8em;
}
main .container h3 {
  font-size: 20px;
  line-height: 1.8em;
}
main .container h4 {
  font-size: 16px;
  line-height: 1.8em;
}
main .container p a {
 color: #1565c0;/*#003d54*/
}
main .container p a.k3tunnel-arrow:after {
  content: ' ＞';
}
main .container p a:hover {
  opacity: .6;
}
main .container strong {
  font-weight: bold;
}
main .container small {
  font-size: 14px;
}
main .container small a {
  color: #5e7c8b;
}
/**
main .container ul {
  padding-left: 1.5em;
}
main .container ul li:before {
  content: '●';
  width: 1.2em;
  display: inline-block;
  margin: 0 0.3em 0 -1.5em;
}
*/
main .container ol {
  padding-left: 1.5em;
}
main .container blockquote {
  border: none;
  padding: 0;
}
main .container .k3tunnel-blockquote-01 {
  padding: 20px 35px;
  background: #bfced4;
}
main .container .k3tunnel-blockquote-02 {
  padding: 20px 35px;
  border: #bfced4 10px solid;
}
main .container .k3tunnel-blockquote-03 {
  padding: 20px 35px;
  border: #bfced4 1px solid;
}
main .container table.responsive-table thead {
  border: none;
}
main .container th {
  background: #668b98;
  color: #fff;
  font-size: 14px;
  font-weight: normal;
  padding: .5em;
  border: 1px solid #5e7c8b;
  border-radius: 0;
}
main .container td {
  border: 1px solid #5e7c8b;
}
main .container figure {
  text-align: center;
}
main .container figure img {
  display: block;
  margin: 0 auto;
}
main .container figcaption {
  font-size: 14px;
  color: #5e7c8b;
  margin: 1em;
}
main .k3tunnel-list {
  max-width: 800px;
  margin: 30px 0;
}
main .k3tunnel-list article {
  margin: .5em 0;
}
main .k3tunnel-list a {
  display: block;
}
main .k3tunnel-list time {
  float: left;
  display: block;
  letter-spacing: 2px;
  width: 160px;
}
main .k3tunnel-list p {
  margin: 0 0 0 160px;
}
.index main .section {
  padding: 50px 0;
}
.index main .k3tunnel-container {
  max-width: 1024px;
}
.index main .promo .k3tunnel-icon-tool,
.index main .promo .k3tunnel-icon-doc {
  display: block;
  margin: 0 auto;
  width: 150px;
  height: 150px;
  background: #003d54 url(../img/icon-doc.png) no-repeat center center;
  border-radius: 75px;
}
.index main .promo .k3tunnel-icon-tool {
  background-image: url(../img/icon-tool.png);
}
.index main .promo .promo-caption {
  margin: 20px 0 0 0;
  color: #5e7c8b;
}
.index main .promo h2 {
  margin: 0;
}
.index main .arrow {
  display: block;
  color: #003d54;
}
.index main .arrow:after {
  content: '';
  width: 15px;
  height: 1em;
  margin-left: 10px;
  display: inline-block;
  background: url(../img/arrow-dark.png) no-repeat center center;
  background-size: 80%;
  vertical-align: middle;
  opacity: .75;
}
.index main .k3tunnel-section-detail .promo-caption {
  margin-top: 30px;
}
.index main .k3tunnel-section-detail h2 {
  font-size: 46px;
  line-height: normal;
}
.index main #k3tunnel-section-mission .k3tunnel-page-header {
  height: auto;
}
.index main #k3tunnel-section-create .k3tunnel-border {
  padding: 20px 75px;
}
.index main #k3tunnel-section-create .k3tunnel-border .promo {
  margin-bottom: 0;
}
.index main #k3tunnel-section-create .k3tunnel-border .promo-caption {
  margin-top: 0;
}
.index main #k3tunnel-section-create .k3tunnel-border .header {
  line-height: normal;
  font-size: 36px;
}
.index main #k3tunnel-section-create .k3tunnel-explore {
  padding: 20px 50px;
}
.index main .k3tunnel-mission-no {
  color: #5e7c8b;
  width: auto;
  padding-top: 0;
  font-size: 14px;
}
.index main .k3tunnel-mission-no strong {
  font-weight: normal;
  font-size: 36px;
}
.index main .k3tunnel-category {
  padding: 0;
}
.index main .k3tunnel-category li {
  list-style: none;
  font-size: 13px;
  font-weight: normal;
}
.index main .k3tunnel-category li:before {
  content: none;
}
.index main .k3tunnel-category .k3tunnel-category-01 {
  color: #fff;
}
.index main .k3tunnel-page-header-01 {
  padding-bottom: 10px;
}
.index main .k3tunnel-page-header-01 .k3tunnel-category .k3tunnel-category-01 {
  background: #daad37;
}
.index main .k3tunnel-page-header-02 {
  padding-bottom: 10px;
}
.index main .k3tunnel-page-header-02 .k3tunnel-category .k3tunnel-category-01 {
  background: #e94f3e;
}
.index main .k3tunnel-page-header-03 {
  padding-bottom: 10px;
}
.index main .k3tunnel-page-header-03 .k3tunnel-category .k3tunnel-category-01 {
  background: #875273;
}
.index main h3 {
  margin: 0;
  font-size: 22px;
}
.index main .k3tunnel-icon-pen,
.index main .k3tunnel-icon-explore {
  margin-top: 8px;
  display: block;
  width: 56px;
  height: 1px;
  padding-top: 56px;
  overflow: hidden;
  border-radius: 28px;
  background: #5e7c8b url(../img/icon-pen.png) no-repeat center center;
}
.index main .k3tunnel-icon-explore {
  background-image: url(../img/icon-explore.png);
}
.k3tunnel-btn-wrapper {
  display: flex;
  justify-content: center;
}

.btn {
  margin: 10px 0;
  min-width: 250px;
  height: 64px;
  line-height: 64px;
  border-radius: 0;
  text-align: left;
  background: #003d54;
  overflow: hidden;
  color: #fff;
  position: relative;
  padding-left: 23px;
  padding-right: 40px;
}
.btn:after {
  content: ">";
  position: absolute;
  right: 12px;
  top: 0;
  width: 15px;
  height: 1px;
  padding-top: 64px;
  overflow: hidden;
  background: url(../img/arrow.png) no-repeat center center;
}
.btn:hover {
  background-color: #5e7c8b;
  opacity: 1;
}
.btn:focus {
  background-color: #003d54;
}

.k3tunnel-btn-02 {
  background: #fff;
  color: #4d7888;
}
.k3tunnel-btn-02:after {
  background-image: url(../img/arrow-dark.png);
}
.k3tunnel-btn-02:hover {
  background-color: #fff;
  color: #bfced4;
}
.k3tunnel-btn-dl:after {
  right: 20px;
  background-image: url(../img/icon-dl.png);
}
.k3tunnel-multiline {
  padding-top: .5em;
  line-height: normal;
}

main .k3tunnel-btn-floating {
  position: absolute;
  padding: 20px 0;
  bottom: 0;
  width: 100%;
}
.k3tunnel-btn-floating a {
  width: 35px;
  height: 35px;
  background: #5e7c8b url(../img/arrow.png) no-repeat center center;
  background-size: 10px;
  transform: rotate(-90deg);
  border-radius: 0;
}

#getstart .promo{
  cursor: pointer;
}

.modal {
  max-width: 500px;
}
.modal .modal-content {
  padding: 0;
}
.modal .modal-close {
  position: absolute;
  z-index: 1;
  color: #fff;
  top: 10px;
  right: 10px;
}
.modal .modal-close img {
  width: 22px;
  height: 22px;
}
.modal .k3tunnel-header {
  height: 144px;
  color: #fff;
  background: #708f9d url(../img/bg.png) no-repeat center center;
}
.modal .k3tunnel-header h4 {
  width: 100%;
}
.modal .k3tunnel-body {
  padding: 2em 2.5em;
}
.modal .k3tunnel-body .btn {
  min-width: 180px;
  height: 45px;
  line-height: 45px;
  font-size: 15px;
}
.modal .k3tunnel-body .btn:after {
  background-size: 10px;
  padding-top: 45px;
  line-height: 45px;
}

#tooltip {
  position: absolute;
  padding: 2px 5px;
  background: #fff;
  border-radius: 3px;
  white-space: nowrap;
  line-height: normal;
  font-size: 13px;
  z-index: 20;
  border: 3px solid #003d54;
}
#tooltip:after {
  content: '';
  position: absolute;
  border: 10px solid transparent;
  border-top: 10px solid #003d54;
  bottom: -20px;
  left: 10%;
}
footer {
  text-align: center;
  padding: 20px 0;
  position: relative;
}
footer nav {
  padding-top: 10px;
  height: auto;
  line-height: normal;
}
footer nav ul {
  padding: 15px 0;
}
footer nav li {
  display: inline-block;
  float: none;
  vertical-align: middle;
}
footer .footer-copyright {
  margin: 0;
  font-size: 14px;
}

.k3t-manual-section {
  padding: 1em 0;
}
@media only screen and (min-width: 993px) {
  .container {
    width: 100%;
    max-width: 1024px;
    position: relative;
  }
  .container .k3tunnel-anchor {
    position: absolute;
    top: -1em;
    right: 0;
  }
}
@media only screen and (max-width: 992px) {
  body {
    font-size: 16px;
  }
    /**
  nav {
    height: 54px;
    line-height: 54px;
  }

  nav .brand-logo {
    position: relative;
    left: 0;
    transform: translateX(0);
    line-height: 54px;
  }

  nav .brand-logo img {
    width: 135px;
  }*/


  nav ul.k3tunnel-btn-sns li {
    height: 28px;
    width: 28px;
    margin-left: 13px;
  }
  nav ul.k3tunnel-btn-sns a {
    height: 28px;
  }
  nav ul.k3tunnel-btn-sns i {
    height: 28px;
    width: 28px;
    padding-top: 27px;
  }
  nav a.button-collapse {
    margin: 13px 0 13px 13px;
    height: 28px;
    width: 28px;
    background: #a3a5a8;
    text-align: center;
  }
  nav a.button-collapse i {
    overflow: hidden;
    height: 1px;
    padding-top: 27px;
    line-height: 28px;
    font-size: 1px;
    background: url(../img/icon-menu.png) no-repeat center center;
    background-size: contain;
  }
  
  #nav-mobile {
    background: #003d54;
    padding-top: 55px;
  }
  #nav-mobile li {
    border-top: 1px solid #000;
  }
  #nav-mobile li:before {
    content: none;
  }
  #nav-mobile li:last-child {
    border-bottom: 1px solid #000;
  }
  #nav-mobile li a{
    color: #fff;
    display: block;
    padding: 20px;
    height: auto;
    line-height: normal;
  }
  
  #nav-mobile li#k3tunnel-nav-mobile-close {
    display: block;
    position: absolute;
    right: 20px;
    top: 15px;
    border: none;
  }
  #nav-mobile li#k3tunnel-nav-mobile-close a {
    display: block;
    width: 30px;
    height: 1px;
    padding: 30px 0 0 0;
    overflow: hidden;
    background: url(../img/close.png) no-repeat center center;
    font-size: 1px;
  }
  
  .k3tunnel-page-header.k3tunnel-header-01 {
    margin-top: 0;
  }
  .container {
    width: 98%;
    padding: 0 10px;
  }
  .k3tunnel-page-header {
    height: auto;
    min-height: 120px;
    padding-bottom: 10px;
    background-size: cover;
  }
  .k3tunnel-page-header .k3tunnel-mission-no {
    width: 65px;
    height: 65px;
    border-radius: 33px;
    font-size: 9px;
    margin-left: -0.75em;
  }
  .k3tunnel-page-header .k3tunnel-mission-no strong {
    font-size: 24px;
  }
  .k3tunnel-page-header .k3tunnel-category li {
    float: left;
    font-size: 10px;
    padding: 0;
    min-width: 70px;
    height: 20px;
    line-height: 20px;
  }
  .k3tunnel-page-header .k3tunnel-category li:last-child {
    margin-right: 0;
  }
  .k3tunnel-page-header .header {
    font-size: 16px;
    margin: 0;
    text-align: left;
  }
  main .container {
    /*
      table.responsive-table {
        tr {
          padding: 0;
        }
        th {
          padding: 15px 10px;
        }
        td {
          border-radius: 0;
        }
      }
      */
  }
  main .container h3 {
    font-size: 16px;
  }
  main .container h4 {
    font-size: 14px;
  }
  main .container .k3tunnel-icon-i {
    width: 20px;
    height: 20px;
    background-size: 60%;
  }

  main .container .k3tunnel-blockquote-02 {
    padding: 4px 7px;
    border: #bfced4 5px solid;
  }
/*  .btn {
    width: 180px;
    min-width: 180px;
    height: 45px;
    margin: 10px auto;
    line-height: 45px;
    font-size: 15px;
    display: block;
  }
  .btn:after {
    padding-top: 45px;
    background-size: 10px;
  }
  .btn.k3tunnel-multiline {
    font-size: 12px;
    padding-top: 7px;
    line-height: 1.3em;
  }
  .btn.k3tunnel-autowide {
    width: auto;
    display: inline-block;
  }
*/
  .index .k3tunnel-page-header.k3tunnel-header-01 {
    height: 355px;
  }
  .index main .section {
    padding: 30px 0;
  }
  .index main .k3tunnel-list article {
    margin: 10px 0;
  }
  .index main .k3tunnel-list time {
    float: none;
  }
  .index main .k3tunnel-list p {
    margin-left: 0;
  }
  .index main .promo {
    margin: 20px 0 0 0;
    letter-spacing: -1px;
  }
  .index main .promo.row {
    margin: 20px -0.75em 0 -0.75em;
  }
  .index main .promo .k3tunnel-icon-tool,
  .index main .promo .k3tunnel-icon-doc {
    width: 78px;
    height: 78px;
    border-radius: 39px;
    background-size: 60%;
  }
  .index main .promo .promo-caption {
    margin-top: 10px;
  }
  .index main .promo h2 {
    font-size: 22px;
  }
  .index main .promo .arrow:after {
    background-size: 60%;
  }
  .index main #k3tunnel-section-mission .k3tunnel-border {
    border: none;
    padding: 0;
  }
  .index main #k3tunnel-section-mission .k3tunnel-icon-tool,
  .index main #k3tunnel-section-mission .k3tunnel-icon-doc {
    margin-right: -0.75em;
  }
  .index main #k3tunnel-section-mission .k3tunnel-mission-no {
    font-size: 9px;
    margin-right: -0.75em;
  }
  .index main #k3tunnel-section-mission .k3tunnel-mission-no strong {
    font-size: 24px;
  }
  .index main #k3tunnel-section-mission .k3tunnel-category li {
    font-size: 10px;
  }
  .index main #k3tunnel-section-mission .arrow {
    letter-spacing: -1px;
  }
  .index main #k3tunnel-section-mission .arrow:after {
    width: 10px;
    margin-left: .5em;
    background-size: 70%;
  }
  .index main #k3tunnel-section-create .k3tunnel-border {
    padding: 15px 10px;
    margin-bottom: 20px;
  }
  .index main #k3tunnel-section-create .k3tunnel-border .promo {
    margin: 0;
  }
  .index main #k3tunnel-section-create .k3tunnel-border .promo .k3tunnel-icon-pen,
  .index main #k3tunnel-section-create .k3tunnel-border .promo .k3tunnel-icon-explore {
    width: 40px;
    padding-top: 40px;
    border-radius: 20px;
    background-size: 80%;
    margin-right: -0.75em;
  }
  .index main #k3tunnel-section-create .k3tunnel-border .promo .promo-caption {
    font-size: 12px;
  }
  .index main #k3tunnel-section-create .k3tunnel-border .promo .header {
    font-size: 20px;
  }
  footer nav {
    padding: 0;
  }
  footer nav ul:first-child li {
    display: block;
    text-align: center;
    padding: 0;
    line-height: 2em;
  }
  footer nav ul:first-child li:before {
    border: none;
  }
  footer nav ul:first-child a {
    font-size: 14px;
    border: none;
  }


}


.k3tunnel-mission05-table td{
  padding:0.1em;
  font-size:0.8em;
}

.k3tunnel-mission-menu-title a:visited,
.k3tunnel-mission-menu-title a:link{
  color:#4e342e ;
  font-weight:bold;
  text-decoration-line: underline;
}

.k3tunnel-mission-menu-title a:hover{
  color:#efebe9 ;
  font-weight:bold;
  text-decoration-line: underline;
}

.k3tunnel-page-header.k3tunnel-header-co2 {
  background-image: url(../img/head-co2.png);
  background-repeat: no-repeat; /* 背景画像を繰り返し表示しない */
  background-size: contain; /* 背景画像を要素内に収める */
  background-position: center; /* 背景画像を中央に配置 */
  background-color:#ABDDD8;
  padding-bottom:5%;
}
.k3tunnel-page-header  li.k3tunnel-category-co2{
  background: #fff;
  color: "gray";
  color:#ABDDD8;
  margin-left: 10%;
}
.k3tunnel-page-header img.responsive-img{
  width: 65%;
  display: block; /* 画像をブロック要素にする */
  margin: 0 auto; /* 画像を中央寄せにする */
}
main .k3tunnel-underline-light-co2 {
  border-bottom: 0.5px solid #dfdddd;
  width: 95%; /* 短め */
  margin-left: 10px; /* 左側の余白を追加 */
}
.row.valign-wrapper {
  display: flex;
  align-items: center;
}
/* 画面幅が600px以下の場合に二つのdiv要素を縦に表示 */
@media (max-width: 600px) {
  .row.valign-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
  .row.valign-wrapper .col {
    width: 100%;
    margin-bottom: 10px; /* 下部に余白を追加 */
  }
  /* 中身のimgのみ真ん中寄せにする */
  .row.valign-wrapper .col img {
    display: block;
    max-width: 150px;
    margin-left: auto;
    margin-right: auto;
  }
}
main .container .k3tunnel-blockquote-co2 {
  padding: 10px 15px;
  margin-bottom: 25px;
  border: #bfced4 2px solid;
}
main .k3tunnel-co2-chat-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  padding: 0px;
  border: #bfced4 3px solid;
  background-color: #bfced44b;
  font-size: 14px;
  align-items: center; /* 子要素を左右中央揃えにする */
}
main .k3tunnel-co2-chat-container img.chat-icon{
  width: 60px; /* 横幅を50pxに設定 */
  height: 60px; /* 高さを50pxに設定 */
  margin: 5px;
  border: #bfced4 1px solid;
  border-radius: 50%; /* 円形に切り抜く */
  object-fit: cover; /* 画像をコンテナにフィットさせる */
}
main .k3tunnel-co2-chat-me-container {
  width: 100%;
  padding:1%;
  padding-bottom:0;
  display: flex;
  flex-direction: column; /* 子要素を縦方向に配置 */
  justify-content: flex-end; /* フレックスボックスの子要素を右寄せにする */
  align-items: flex-end; /* 子要素を右寄せにする */
}
main .k3tunnel-co2-chat-me{
  width: auto;
  max-width: 90%;
  border: #bfced4 2px solid;
  border-radius: 10px;
  background-color: white;
  padding:1%;
  margin:5px;
  margin-right:3%;
  margin-bottom:0;
}
main .k3tunnel-co2-chat-you-container {
  width: 100%;
  padding:1%;
  padding-top:0;
  display: flex;
  flex-direction: column; /* 子要素を縦方向に配置 */
  justify-content: flex-start; /* フレックスボックスの子要素を左寄せにする */
  align-items: flex-start; /* 子要素を左寄せにする */
}
main .k3tunnel-co2-chat-you{
  width: auto;
  max-width: 90%;
  border: #bfced4 2px solid;
  border-radius: 10px;
  background-color: white;
  padding:1%;
  margin:5px;
  margin-left:3%;
  margin-top:0;
}
main .k3tunnel-co2-chat-enter{
  width: 95%;
  border: #bfced4 2px solid;
  padding: 0;
  margin: 1%;
  display: flex;
  align-items: center;
  justify-content: center; /* 子要素を左右中央揃えにする */
  text-align: center; /* テキストを中央揃えにする */
  background-color: #bfced44b;
}
main .k3tunnel-co2-chat-enter img{
  width: 30px;
  height: 30px;
  margin-left: auto;
}

main .k3t-co2-outline {
  margin:0 1% !important;
  display: flex;
}
@media (max-width: 600px) {
  main .k3t-co2-outline {
    display:block;
  }
}
main .k3t-co2-outline-wrapper {
  margin:1% !important;
  padding:0 !important;
  display: flex;
  flex-direction: column;
  border:1px solid #5e7c8b;
}
main .k3t-co2-outline-header{
  padding:2%;
  background-color:#668b98;
  color:white;
}
main .k3t-co2-outline-text{
  padding:2%;
  flex:1;
}
main .k3t-co2-outline-media{
  padding:2% 2%;
}
main .k3t-co2-outline-media iframe{
  border:2px solid #5e7c8b;
}
main .k3tunnel-co2-timetable{
  max-width: 95%;
  table-layout: auto; /* セルの内容に合わせて幅を調整 */
  margin: 0 auto; /* テーブルを中央揃えにする */
}
main .k3tunnel-co2-timetable th {
  border: 1px solid #5e7c8b; /* セルの境界線を設定 */
}
main .k3tunnel-co2-timetable td {
  text-align: center; /* 各セルのテキストを中央揃えにする */
  min-width:50px;
  padding: 0; /* 不要な余白を削除 */
  overflow: hidden; /* はみ出しを隠す */
  border: 1px solid #5e7c8b; /* セルの境界線を設定 */
}
main .k3tunnel-co2-timetable .row {
  margin: 0; /* 行の外側の余白を削除 */
}
main .k3tunnel-co2-timetable .col {
  padding: 10px; /* 列の内側の余白を設定 */
  box-sizing: border-box; /* パディングを含めて要素のサイズを計算 */
}
main .k3tunnel-co2-timetable-img-container {
  display: flex;
  justify-content: center; /* 水平方向の中央揃え */
  align-items: center; /* 垂直方向の中央揃え */
  flex-direction: column; /* 子要素を縦に並べる */
  margin: 5px 0; /* 上下の余白を追加 */
}
main .row.k3tunnel-co2-m-flex{
  float: none;
  display: flex;
  flex-flow: row wrap;
}
main .row.k3tunnel-co2-m-flex.k3tunnel-co2-m-flex .col{ /* 優先度を上げるために2回指定 */
  float: none;
  margin: auto 0;
}
main .row.k3tunnel-co2-m-flex.k3tunnel-co2-m-flex .col:not([class*="offset-"]){
  margin-left: unset; /* 元々ついているmargin-left: autoを解除 */
}
main .k3tunnel-co2-timetable-text{
  text-align: left; /* テキストを左揃え */
  vertical-align: middle; /* 子要素を上下中央に揃える */
}
main .k3tunnel-co2-timetable-icon{
  width:100%;
  max-width: 90px;
  box-sizing: border-box; /* パディングやボーダーを含めてサイズを計算 */
  margin: 8px; 
}
main .k3tunnel-co2-timetable img.screenshot {
  width: 100%;
  box-sizing: border-box; /* パディングやボーダーを含めてサイズを計算 */
}
main .k3tunnel-co2-timetable video.screenshot {
  width: 100%;
  box-sizing: border-box; /* パディングやボーダーを含めてサイズを計算 */
}
main .k3tunnel-co2-link{
  margin: 2% 1%;
  padding: 1% 1%;
}
main .k3tunnel-co2-link-item {
  display: block; /* リンクをブロック要素にする */
  max-width: 100%; /* リンクの最大幅を親要素に合わせる */
  text-align: center; /* テキストを中央揃えにする */
  box-sizing: border-box; /* パディングとボーダーを含める */
  overflow: hidden; /* はみ出しを防ぐ */
  height: 50px; /* 高さを小さく設定 */
  line-height: 50px; /* テキストを垂直方向に中央揃え */
}
main .k3tunnel-co2-link-item valign-wrapper{
  overflow: hidden;
  min-width: 5px;
  width: auto; /* 幅を自動調整 */
}
.k3tunnel-co2-link-item:after{
  padding-top: 50px;
}
main .k3tunnel-co2-faq{
  display: flex;
  flex-direction: column;
  width: 100%;
}
main .k3tunnel-co2-faq-question{
  display: block; /* ブロック要素として扱う */
  width: 100%;
  align-items: left;
  justify-content: left;
  border-bottom: 0.1px solid #dfdddd;
  margin:3px 5px;
  padding: 0px 5px;
  text-indent: -20px; /* ネガティブインデントを追加 */
  padding-left: 20px; /* 左側のパディングを追加 */
}
main .k3tunnel-co2-faq-question::before{
  content: "Q ";
  font-weight: bold;
  color: #5e7c8b;
  margin-right: 1px;
  display: inline; /* インライン要素として扱う */
  font-size: 20px;
  vertical-align: -2px; /* 文字を少し下にずらす */
}
main .k3tunnel-co2-faq-answer {
  display: block; /* ブロック要素として扱う */
  width: 95%;
  margin: 3px 5px;
  padding: 0px 5px;
  text-indent: -20px; /* ネガティブインデントを追加 */
  padding-left: 20px; /* 左側のパディングを追加 */
}
main .k3tunnel-co2-faq-answer::before {
  content: "A ";
  font-weight: bold;
  color: #5e7c8b;
  margin-right: 1px;
  display: inline; /* インライン要素として扱う */
  font-size: 20px;
  vertical-align: -2px; /* 文字を少し下にずらす */
}
main .k3tunnel-co2-faq-answer ul {
  padding-left: 20px; /* 左側のパディングを追加 */
}

.co2-link-icon {
  vertical-align: middle; /* アイコンをテキストの中央に揃える */
  font-size: inherit; /* 周りのフォントサイズに合わせる */
  margin-right: 0.1em; /* アイコンとテキストの間隔を調整 */
}