@charset "UTF-8";
/* CSS Document */
html {
  font-size: 62.5%;
  width: 100%;
  box-sizing: border-box;
}
body {
  color: #000;
  background-color: #F5F5F5;
  font-family: "helvetica", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-weight: 300;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
}
img {
  width: 100%;
}
ol, ul {
  list-style: none;
}
a {
  text-decoration: none;
}
a:link, a:visited, a:hover, a:active {
  color: inherit;
}
.grayscale img {
  filter: grayscale(100%);
  transition: .3s ease-in-out;
}
.grayscale:hover img {
  filter: grayscale(0);
}
/*--------------------
header
--------------------*/
.header {
  padding-top: 30px;
}
#g-nav ul {
  display: flex;
  justify-content: flex-end;
  margin-right: 100px;
}
#g-nav li {
  position: relative;
  margin-left: 100px;
  font-size: 25px;
}
#g-nav li::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: -5%;
  width: 110%;
  height: 2px;
  background: #000;
  transition: all 0.5s;
  transform: scale(0, 1); /*X方向0、Y方向1*/
  transform-origin: center top;
}
#g-nav li.current a::after, #g-nav li:hover::after {
  transform: scale(1, 1); /*X方向にスケール拡大*/
}
#g-nav li span {
  display: none;
}
/*--------------------
section-top
--------------------*/
.section-top.inner {
  margin-top: 230px;
  margin-bottom: 240px;
}
.section-top__inner1 {
  display: flex;
  position: relative;
}
.section-top__inner1 .section-top__title {
  font-size: 150px;
}
.section-top__inner1 .scrolldown {
  position: absolute;
  width: 150px;
  top: 20px;
  right: 0;
}
.section-top__inner1 .scrolldown .circle {
  animation: 30s linear infinite rotation;
}
@keyframes rotation {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}
.section-top__inner1 .scrolldown .arrow {
  width: auto;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.section-top__inner2 {
  margin-top: 40px;
}
.section-top__list {
  display: flex;
}
.section-top__list li {
  margin-right: 30px;
  color: #949494;
}
.section-top__list li:last-child {
  margin-right: 0;
}
/*--------------------
footer
--------------------*/
.footer {
  color: #FFF;
  background-color: #000;
}
.footer-inner {
  padding: 100px;
}
.footer-inner ul li {
  font-size: 4.0rem;
  font-weight: bold;
  margin-bottom: 30px;
}
.footer-inner ul li:last-child {
  margin-bottom: 0;
}
.footer-inner ul li a {
  transition: opacity 0.3s;
}
.footer-inner ul li a:hover {
  opacity: 0.5;
}
.footer-inner2 {
  padding: 50px 100px;
  border-top: 1px solid #272727;
}
.footer-inner2 p {
  font-size: 1.2rem;
}
@media screen and (max-width:1025px) {
  #g-nav {
    position: fixed;
    z-index: -1;
    opacity: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    background: #000;
    transition: all 0.5s;
  }
  #g-nav.panelactive {
    opacity: 1;
    z-index: 999;
  }
  #g-nav ul {
    display: none;
    position: absolute;
    z-index: 999;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    margin: 0 auto;
  }
  #g-nav.panelactive ul {
    display: flex;
    flex-flow: column;
  }
  #g-nav li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #FFF;
    font-size: 4.0rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 50px;
    margin-left: 0;
    border-bottom: 1px solid grey;
    padding-bottom: 10px;
  }
  #g-nav li::after {
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #FFF;
    transition: all 1.0s;
    transform: scale(0, 1); /*X方向0、Y方向1*/
    transform-origin: left;
  }
  #g-nav li a {
    display: block;
  }
  #g-nav li span {
    display: block;
    font-size: 1.0rem;
    font-weight: 400;
  }
  .openbtn {
    position: fixed;
    z-index: 9999;
    top: 10px;
    right: 10px;
    cursor: pointer;
    width: 50px;
    height: 50px;
  }
  .openbtn span {
    display: inline-block;
    transition: all 0.5s;
    position: absolute;
    left: 13px;
    height: 2px;
    background-color: #000;
  }
  .openbtn span:nth-of-type(1) {
    top: 22px;
    width: 50%;
  }
  .openbtn span:nth-of-type(2) {
    top: 29px;
    width: 30%;
  }
  .openbtn.active span:nth-of-type(1) {
    top: 20px;
    left: 16px;
    transform: translateY(6px) rotate(-45deg);
    width: 35%;
    background-color: #FFF;
  }
  .openbtn.active span:nth-of-type(2) {
    top: 32px;
    left: 16px;
    transform: translateY(-6px) rotate(45deg);
    width: 35%;
    background-color: #FFF;
  }
  /*--------------------
section-top
--------------------*/
  .section-top__inner1 .section-top__title {
    font-size: 100px;
  }
  .section-top__inner1 .scrolldown {
    width: 100px;
  }
}
@media screen and (max-width:768px) {
  /*--------------------
section-top
--------------------*/
  .section-top.inner {
    margin-top: 180px;
    margin-bottom: 100px;
  }
  .section-top__inner1 .section-top__title {
    font-size: 16vw;
  }
  .section-top__inner1 .scrolldown {
    width: 20vw;
    top: -100px;
  }
  .section-top__inner1 .scrolldown .arrow {
    width: 7px;
  }
  /*--------------------
footer
--------------------*/
  .footer-inner {
    padding: 100px 30px;
  }
  .footer-inner2 {
    padding: 50px 30px;
  }
}
@media screen and (max-width:400px) {
  #g-nav li {
    font-size: 3.2rem;
  }
  .footer-inner ul li {
    font-size: 3.2rem;
  }
}