/* http://meyerweb.com/eric/tools/css/reset/ 
v2.0 | 20110126
License: none (public domain)
*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: baseline;
}

article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}

body {
  line-height: 1;
}

ol, ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

.clearfix:after {
  content: "";
  display: block;
  clear: both;
}

body {
  padding-top: 60px;
  font-size: 14px;
  color: #1b191c;
  font-family: 'Noto Sans JP', sans-serif;
  box-sizing: border-box;
  overscroll-behavior-y: none;
}

img {
  display: block;
  width: 100%;
  height: auto;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

a {
  font-size: inherit;
  color: inherit;
  text-decoration: none;
}

.font-os {
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.04em;
}

.sp {
  display: none;
}

@media only screen and (max-width: 768px) {
  .pc {
    display: none;
  }
}
header {
  display: flex;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  padding: 0 40px;
  width: 100%;
  height: 60px;
  background: #fff;
  box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.2);
  box-sizing: border-box;
  z-index: 1000;
}
header h1 {
  display: flex;
  align-items: center;
  max-width: 171px;
  width: 100%;
  height: 100%;
  transition: opacity .3s;
}
header h1:hover {
  opacity: .5;
}
header nav {
  display: flex;
}
header nav .menu-list {
  display: flex;
}
header nav .menu-list .menu-item {
  margin-right: 40px;
  font-size: 20px;
}
header nav .menu-list .menu-item a {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
}
header nav .menu-list .menu-item a::before {
  display: block;
  content: '';
  position: absolute;
  bottom: 16px;
  left: 0;
  width: 0;
  height: 1px;
  background: #d300f3;
  transition: width .3s ease;
}
header nav .menu-list .menu-item.active a {
  pointer-events: none;
}
header nav .menu-list .menu-item.active a::before {
  width: 100%;
}
header nav .menu-list .menu-item:hover a::before {
  width: 100%;
}
header .sns-container {
  display: flex;
  align-items: center;
}
header .sns-container a img {
  max-width: 30px;
  transition: opacity .2s;
}
header .sns-container a img:hover {
  opacity: .5;
}
header .sns-container a:first-child img {
  margin-right: 20px;
}
header .menu-button {
  position: relative;
  width: 60px;
  height: 60px;
}
header .menu-button .menu-button-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30px;
  height: 2px;
  background: #1b191c;
  transition: opacity .2s,transform .2s ease;
}
header .menu-button .menu-button-line:first-child {
  transform: translate3d(-50%, calc(-50% - 12px), 0);
}
header .menu-button .menu-button-line:nth-of-type(2) {
  transform: translate3d(-50%, -50%, 0);
  background: #d300f3;
}
header .menu-button .menu-button-line:last-child {
  transform: translate3d(-50%, calc(-50% + 12px), 0);
}

@media only screen and (max-width: 768px) {
  header {
    padding: 0 0 0 5%;
  }
  header nav {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    height: 0;
    background: #fff;
    transition: height .3s ease;
  }
  header nav .menu-list {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
  }
  header nav .menu-list .menu-item {
    margin: 0 0 32px;
  }
  header nav .menu-list .menu-item a::before {
    bottom: -3px;
  }
  header nav .sns-container {
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s;
  }
  header .menu-button {
    display: block;
  }
  header .menu-button.on .menu-button-line:first-child, header .menu-button.on .menu-button-line:last-child {
    transform: translate3d(-50%, -50%, 0);
  }
  header .menu-button.on .menu-button-line:nth-of-type(2) {
    opacity: 0;
  }
  header .menu-button.on.open .menu-button-line:first-child {
    transform: translate3d(-50%, -50%, 0) rotate(45deg);
  }
  header .menu-button.on.open .menu-button-line:last-child {
    transform: translate3d(-50%, -50%, 0) rotate(-45deg);
  }
  header.open nav {
    height: calc(100vh - 60px);
  }
  header.open nav .menu-list {
    opacity: 1;
    pointer-events: auto;
  }
  header.open nav .sns-container {
    opacity: 1;
    pointer-events: auto;
  }
}
section {
  padding: 60px 5%;
  box-sizing: border-box;
}
section .section-title {
  position: relative;
  text-align: center;
}
section .section-title h2 {
  display: inline-block;
  position: relative;
  margin-bottom: 70px;
  font-size: 50px;
}
section .section-title h2::before {
  display: block;
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 2px;
  background: #973ea5;
}

footer {
  padding: 60px 5%;
  width: 100%;
  background: #f5f5f5;
  box-sizing: border-box;
}
footer p {
  text-align: center;
}