@charset "UTF-8";

/* reset */
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
p,
blockquote,
th,
td,
figcaption,
figure {
  margin: 0;
  padding: 0;
}

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

sup,
sub {
  position: relative;
  top: -3px;
  font-size: 70%;
}

li {
  list-style-type: none;
}

a {
  word-break: break-all;
}

* {
  box-sizing: border-box;
}


/* base
----------------------------------------*/
html {
  font-size: 62.5%;
  overflow: auto;
  scroll-behavior: smooth;
}

body {
  width: 100%;
  color: #000;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-feature-settings: "palt";
}

a:link {
  color: #333;
  text-decoration: underline;
}

a:visited {
  color: #333;
  text-decoration: underline;
}

a:active,
a:hover {
  color: #333;
  text-decoration: none;
}

img {
  vertical-align: bottom;
}

.spview {
  display: none;
}

@media screen and (max-width: 812px) {
  body {
    -webkit-text-size-adjust: 100%;
  }
}

@media screen and (max-width: 767px) {
  .pcview {
    display: none;
  }

  .spview {
    display: block;
  }
}


/* Layout
----------------------------------------*/
.wrapper {
  width: 100%;
  margin: 0 auto;
}

.wrapper img {
  width: 100%;
  height: auto;
}

.maincontents {
  width: 90%;
  margin: 0 auto;
  padding-bottom: 50px;
  overflow: hidden;
}


/* mv
----------------------------------------*/
.mv {
  background-color: #ebeff2;
}

.mv-inner {
  max-width: 1600px;
  margin: 0 auto;
  background: url(../img/power_trading_operating_system_nikkei/bg-mv.jpg) no-repeat center;
  background-size: cover;
}

.mv-text {
  position: relative;
  max-width: 996px;
  width: 94%;
  height: min(55vw, 550px);
  margin: 0 auto;
}

.mv-text .title {
  position: absolute;
  bottom: 9%;
  right: 0;
  padding: 5px 0 20px 20px;
  border-left: solid 7px #005bac;
}

.mv-text .title span {
  display: block;
}

.mv-text .title .main {
  font-size: min(5.3vw, 5.3rem);
  font-weight: 900;
  line-height: 1.4;
}

.mv-text .title .sub {
  margin-top: 10px;
  font-size: min(2.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.4;
}

.mv-text .sponsor {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 1.4rem;
}

@media screen and (max-width: 900px) {
  .mv-text .title {
    padding: 0.5vw 0 1.5vw 1.8vw;
  }
}

@media screen and (max-width: 767px) {
  .mv-inner {
    background: url(../img/power_trading_operating_system_nikkei/bg-mv-sp.jpg) no-repeat center;
    background-size: cover;
  }

  .mv-text {
    height: auto;
    padding-top: 93.33333333333333%;
  }

  .mv-text .title {
    top: 40px;
    bottom: auto;
    padding: 0 0 15px;
    border-bottom: solid 2px #005bac;
    border-left: none;
    text-align: center;
  }

  .mv-text .title .main {
    font-size: 9.07vw;
  }

  .mv-text .title .sub {
    font-size: 5.33vw;
  }
}


/* lead
----------------------------------------*/
.lead {
  padding: 32px 0;
  background-color: #005bac;
}

.lead-inner {
  max-width: 800px;
  width: 90%;
  margin: 0 auto;
}

.lead-inner.fade-up.on {
  transition-delay: 0.5s;
}

.lead-inner p {
  color: #fff;
  font-size: 1.6rem;
  line-height: 2;
}

@media screen and (max-width: 767px) {
  .lead {
    padding: 20px 0;
  }
}


/* navigation
----------------------------------------*/
.navigation {
  padding: 25px 0;
  background-color: #f2f2f2;
}

.navigation-inner {
  max-width: 800px;
  width: 90%;
  margin: 0 auto;
}

.navigation-inner.fade-up.on {
  transition-delay: 0.8s;
}

.navigation-heading {
  margin-bottom: 13px;
  color: #005bac;
  font-size: 2.0rem;
  font-weight: 700;
}

.navigation-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.navigation-list li {
  width: calc(100% / 2 - 5px);
  list-style-type: none;
}

.navigation-list li:nth-of-type(n+3) {
  margin-top: 7px;
}

.navigation-list li a::before {
  position: absolute;
  top: 5px;
  left: 0;
  width: 18px;
  height: 18px;
  background-color: #005bac;
  border-radius: 50%;
  content: "";
}

.navigation-list li a::after {
  position: absolute;
  top: 9px;
  left: 5px;
  width: 6px;
  height: 6px;
  border: 0;
  border-bottom: solid 2px #fff;
  border-right: solid 2px #fff;
  content: "";
  transform: rotate(45deg);
}

.navigation-list li a {
  position: relative;
  display: block;
  padding-left: 30px;
  font-size: 1.6rem;
  line-height: 1.6;
  text-decoration: none;
  transition: 0.5s;
}

.navigation-list li a:hover {
  opacity: 0.7;
}

@media screen and (max-width: 767px) {
  .navigation {
    padding: 20px 0;
  }

  .navigation-list li {
    width: 100%;
  }

  .navigation-list li:nth-of-type(n+2) {
    margin-top: 7px;
  }
}


/* section
----------------------------------------*/
.section {
  padding-top: 100px;
}

.section:first-of-type {
  padding-top: 80px;
}

.section-inner {
  max-width: 996px;
  margin: 0 auto;
}

.section-heading {
  position: relative;
  margin-bottom: 40px;
  padding-bottom: 30px;
  font-size: 3.4rem;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
}

.section-heading::before {
  position: absolute;
  bottom: -7px;
  left: 50%;
  transform: translateX(-50%);
  width: 10%;
  height: 7px;
  background-color: #005bac;
  border-radius: 3px;
  content: "";
}

.section-text {
  padding: 0 9.83935742971888%;
}

.section-text>p {
  margin-bottom: 1.5em;
  font-size: 1.6rem;
  line-height: 2;
}

.section-text>p:last-of-type {
  margin-bottom: 0;
}

.section-text>p.question {
  color: #005bac;
  font-weight: 700;
}

.section-text>p.notes {
  font-size: 1.4rem;
}

.section-text>p .name {
  font-weight: 700;
}

@media screen and (max-width: 900px) {
  .section-text {
    padding: 0 3%;
  }
}

@media screen and (max-width: 767px) {
  .section {
    padding-top: 60px;
  }

  .section:first-of-type {
    padding-top: 50px;
  }

  .section-heading {
    padding-bottom: 20px;
    font-size: 2.6rem;
    line-height: 1.6;
  }

  .section-heading::before {
    width: 20%;
    height: 5px;
  }

  .section-text {
    padding: 0;
  }
}


/* message
----------------------------------------*/
.message {
  max-width: 800px;
  margin: 30px auto 0;
  padding: 30px;
  background-color: #e5eef7;
}

.message-heading {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: solid 1px #005bac;
  color: #005bac;
  font-size: 2.0rem;
  font-weight: 700;
  line-height: 1.6;
}

.message p {
  font-size: 1.6rem;
  line-height: 2;
}

@media screen and (max-width: 767px) {
  .message {
    padding: 20px;
  }
}


/* person
----------------------------------------*/
.person {
  width: 50%;
}

.person-image {
  position: relative;
}

.person-image::after {
  position: absolute;
  top: 10px;
  width: 100%;
  height: 100%;
  background-color: #005bac;
  content: "";
  z-index: -10;
}

.person-caption {
  margin-top: 25px;
  font-size: 1.6rem;
  line-height: 1.7;
}

.person-caption span {
  font-size: 160%;
}

.person.left {
  float: left;
  margin: 0 50px 30px -12.25%;
}

.person.left .person-image::after {
  left: 10px;
}

.person.right {
  float: right;
  margin: 0 -12.25% 30px 50px;
}

.person.right .person-image::after {
  right: 10px;
}

@media screen and (max-width: 900px) {
  .person.left {
    margin: 0 50px 30px -5%;
  }

  .person.right {
    margin: 0 -5% 30px 50px;
  }
}

@media screen and (max-width: 767px) {
  .person {
    width: 90%;
  }

  .person.left,
  .person.right {
    float: none;
    margin: 30px auto 20px;
  }
}


/* photo
----------------------------------------*/
.photo {
  background-color: #000;
}

.photo-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.photo-inner::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: #000;
  transition: width 0.6s cubic-bezier(0.21, 0.6, 0.35, 1);
  transition-delay: 0.6s;
}

.photo-inner.fade.on::after {
  width: 0;
}


/* figure
----------------------------------------*/
.figure {
  margin: 50px auto;
  padding: 40px 48px;
  background-color: #f2f2f2;
}

.figure-caption {
  margin-top: 20px;
  font-size: 1.4rem;
  line-height: 1.8;
}

@media screen and (max-width: 767px) {
  .figure {
    margin: 30px auto;
    padding: 20px;
  }

  .figure-caption {
    margin-top: 15px;
    line-height: 1.6;
  }
}


/* contact
----------------------------------------*/
.contact {
  width: 90%;
  margin: 0 auto;
  padding: 100px 0;
}

.contact-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.contact-heading {
  font-size: 2.4rem;
  font-weight: 700;
}

.contact-text {
  margin-left: 50px;
  padding: 30px 0 40px 50px;
  border-left: solid 2px #000;
}

.contact-text .company {
  font-size: 3.4rem;
  font-weight: 700;
}

.contact-text .link {
  margin-top: 40px;
}

.contact-text .link a {
  font-size: 1.8rem;
  transition: 0.5s;
}

.contact-text a:hover {
  text-decoration: none;
}

@media screen and (max-width: 767px) {
  .contact {
    padding: 70px 0;
  }

  .contact-heading {
    width: 100%;
    font-size: 2.0rem;
  }

  .contact-text {
    width: 100%;
    margin: 20px 0 0 0;
    padding: 40px 0 0;
    border-top: solid 2px #000;
    border-left: none;
  }

  .contact-text .company {
    font-size: 2.4rem;
  }

  .contact-text .link {
    margin-top: 30px;
  }

  .contact-text .link a {
    font-size: 1.5rem;
  }
}

.notes_area {
  padding: 70px 0;
  display: flex;
  justify-content: center;
}

.notes_area .notes_txt {
  font-size: 1.6rem;
  line-height: 1.4;
}

@media screen and (max-width: 767px) {
  .notes_area {
    padding: 35px 0 0;
  }

  .notes_area .notes_txt {
    font-size: 1.4rem;
  }
}


/* pagetop
----------------------------------------*/
.pagetop {
  position: fixed;
  bottom: 2em;
  right: 2em;
  width: 54px;
  z-index: 10;
}

.pagetop a {
  transition: 0.5s;
}

.pagetop a:hover {
  opacity: 0.7;
}

@media screen and (max-width: 767px) {
  .pagetop {
    bottom: 0.5em;
    right: 0.5em;
    width: 40px;
  }
}


/* fade
----------------------------------------*/
.fade {
  opacity: 0;
  transition: .8s;
}

.fade.on {
  opacity: 1;
}

.fade-up {
  opacity: 0;
  transform: translateY(50px);
  transition: .8s;
}

.fade-down {
  opacity: 0;
  transform: translateY(-50px);
  transition: .8s;
}

.fade-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: .8s;
}

.fade-right {
  opacity: 0;
  transform: translateX(50px);
  transition: .8s;
}

.fade-up.on,
.fade-down.on,
.fade-left.on,
.fade-right.on {
  opacity: 1;
  transform: translateX(0);
}