:root {
  --content-width: 900px;
}


.portfolio-header {
  position: relative;
  background-image: url(image/header-bg.webp);
}

.portfolio-header .mdl-layout__header-row {
  padding: 0;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.mdl-layout__title {
  font-size: 1.6rem;
  text-align: center;
  font-weight: 300;
}

.is-compact .mdl-layout__title span {
  display: none;
}

.portfolio-logo-row {
  min-height: 2rem;
}

.is-compact .portfolio-logo-row {
  min-height: auto;
}

/*
.portfolio-logo {
  background: url(images/logo.png) 50% no-repeat;
  background-size: cover;
  height: 150px;
  width: 150px;
  margin: auto auto 10px;
}
*/

.is-compact .portfolio-logo {
  height: 50px;
  width: 50px;
  margin-top: 7px;
}

.portfolio-navigation-row {
  background-color: rgba(0, 0, 0, 0.4);
  text-transform: uppercase;
  height: 18px;
}

.portfolio-navigation-row .mdl-navigation {
  text-align: center;
  max-width: var(--content-width);
  width: 100%;
}

.portfolio-navigation-row .mdl-navigation__link {
  -webkit-flex: 1;
      -ms-flex: 1;
          flex: 1;
  line-height: 10px;
}

.portfolio-header .mdl-layout__drawer-button {
  background-color: rgba(197, 197, 197, 0.44);
}

.portfolio-navigation-row .is-active {
  position: relative;
  font-weight: bold;
}

.portfolio-navigation-row .is-active:after {
  content: "";
  width: 70%;
  height: 2px;
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: rgb(255,64,129);
  left: 15%;
}

.portfolio-card .mdl-card__title {
  padding-bottom: 0;
}


.portfolio-blog-card-compact .mdl-card__title {
  padding-bottom: 0;
}

.portfolio-blog-card-bg > .mdl-card__actions {
  height: 52px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
}

img.article-image {
  width: 100%;
  height: auto;
}

.portfolio-max-width {
  max-width: var(--content-width);
  margin: auto;
}

.portfolio-copy {
  max-width: 700px;
}

.no-padding {
  padding: 0;
}

.no-left-padding {
  padding-left: 0;
}

.no-bottom-padding {
  padding-bottom: 0;
}

.padding-top {
  padding: 10px 0 0;
}

.portfolio-share-btn {
  position: relative;
  float: right;
  top: -4px;
}

.demo-card-event > .mdl-card__actions {
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  box-sizing: border-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}

.portfolio-contact .mdl-textfield {
  width: 100%;
}


footer {
  /* background-image: url(images/footer-background.png); */
  background-size: cover;
}



label.input-custom-file input[type=file] {
  display: none;
}




.gnav {
    display: flex;
    height: 2rem;
    margin: 0 auto;
    width: 400px;
}
.gnav > li {/*親階層のみ幅を25%にする*/
    /* width: 25%; */
    width: 100%;
}
/*全てのリスト・リンク共通*/
.gnav li {
    list-style: none;
    position: relative;
    //position: absolute;
}
.gnav li a {
    background: #001b34;
    border-right: 1px solid #eee;
    color: #fff;
    display: block;
    height: 2rem;
    line-height: 2rem;
    text-align: center;
    text-decoration: none;
    width: 100%;
}
/*子階層以降共通*/
.gnav li li {
    height: 0;
    opacity: 0;
    overflow: hidden;
    transition: opacity .5s;
}
.gnav li li a {
    border-top: 1px solid #eee;
}
.gnav li:hover > ul > li {
    height: 2rem;
    opacity: 1;
    overflow: visible;
}
.gnav li ul li ul {
    left: 100%;
    position: absolute;
    top: 0;
    width: 100%;
}
/*一番右のメニュー*/
.gnav > li:nth-child(5) ul li ul {
    left: -100%;
}
/*hover*/  
.gnav > li:hover > a {/*親階層*/
    background: #00305c;
}
     
.gnav > li li > a {/*子階層*/
    background: #00305c;
}
.gnav > li li:hover > a {
    background: #004789;
}
 
.gnav li ul li ul li > a {/*孫階層*/
    background: #004789;
}
.gnav li ul li ul li:hover > a {
    background: #0065c1;
}
 
.gnav li ul li ul li ul li > a {/*ひ孫階層*/
    background: #0065c1;
}
.gnav li ul li ul li ul li:hover > a {
    background: #1e7dd4;
}
 
/*リストに「▶︎」を付ける*/
.gnav > li > ul:before{/*子階層*/
    border: 5px solid transparent;
    border-top: 5px solid #fff;
    content: "";
    right: 1rem;
    position: absolute;
    top: 1rem;
    transform: translateY(-40%);
}
.gnav li ul li ul:before {/*孫階層*/
    border: 5px solid transparent;
    border-left: 5px solid #fff;
    content: "";
    left: -20px;
    position: absolute;
    top: 1em;
    transform: translateY(-50%);
}
.gnav li:nth-child(5) ul li ul:before {/*一番右のメニューの孫階層*/
    border: 5px solid transparent;
    border-right: 5px solid #fff;
    left: auto;
    right: -20px;
}