@charset "utf-8";

:root {
  --text-color: #231815;
  --black-color: #000;
  --white-color: #fff;
}

html {
  height: -webkit-fill-available;
}

body {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  color: var(--text-color);
  margin: 0;
}

.en-font {
  font-family: 'Roboto', sans-serif;
}

.teams-font {
  font-family: 'Bebas Neue', sans-serif;
}

img {
  width: 100%;
}

a,
a:hover {
  text-decoration: none;
}

ul {
  list-style: none;
}

dl,
dd {
  margin-bottom: 0;
}

button {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  letter-spacing: 0.15em;
  background-color: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul {
  margin: 0;
  padding: 0;
}

.wrapper {
  width: 100%;
  padding: 0 4vw;
}

.inner {
  max-width: 1170px;
  width: 100%;
  margin-inline: auto;
}

/* header */
#header {
  background-color: var(--black-color);
  border-bottom: 1px solid var(--white-color);
  position: sticky;
  top: 0;
  width: 100%;
  padding: 8px 16px;
  z-index: 99;
}

.header-inner {
  max-width: 1170px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  margin-inline: auto;
}

.logo img {
  width: 240px;
  display: flex;
  align-items: center;
}

.pc-menu {
  display: none;
}

.pc-menu li {
  border-left: 1.5px solid var(--white-color);
}

.pc-menu li:last-child {
  border-right: 1.5px solid var(--white-color);
}

.pc-menu a {
  font-size: 16px;
  letter-spacing: 0.15em;
  line-height: 2;
  display: block;
  padding: 0 12px;
}

.pc-menu a,
.sp-menu a {
  color: var(--white-color);
}

.sp-menu a {
  font-size: 18px;
  letter-spacing: 0.25em;
  display: block;
  padding: 0 24px;
}

.sp-menu {
  background-color: rgba(78, 78, 78, 0.9);
  text-align: center;
  position: absolute;
  top: 0;
  right: 0;
  transform: scale(0);
  transform-origin: top right;
  pointer-events: none;
  transition: 0.3s;
  padding: 64px 32px 32px;
}

.sp-menu.active {
  transform: scale(1);
  pointer-events: auto;
}

.sp-menu li {
  border-left: 1px solid var(--white-color);
  border-right: 1px solid var(--white-color);
}

.sp-menu li:not(:first-child) {
  margin-top: 16px;
}

.sp-menu-bg {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  opacity: 0;
  visibility: hidden;
  transition: 0.3s;
}

.sp-menu-bg.active {
  visibility: visible;
  opacity: 1;
}

.hamburger-menu {
  width: 48px;
  height: 48px;
  position: relative;
  z-index: 100;
}

.hamburger-menu span {
  position: absolute;
  width: 32px;
  height: 3px;
  border-radius: 9999px;
  background-color: var(--white-color);
  left: 50%;
  transform: translate(-50%, -50%);
  transition: 0.3s;
}

.hamburger-menu span:nth-child(1) {
  top: 25%;
}

.hamburger-menu span:nth-child(2) {
  top: 50%;
}

.hamburger-menu span:nth-child(3) {
  top: 75%;
}

.hamburger-menu.active span:nth-child(1) {
  transform: translate(-50%, -50%) rotate(-45deg);
  top: 50%;
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: translate(-50%, -50%) rotate(45deg);
  top: 50%;
}

/* top */
#top {
  position: relative;
}

.top-video {
  position: absolute;
  inset: 0;
  z-index: 1;
}

#player {
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.mainvisual {
  width: 100%;
}

.top-content {
  font-weight: bold;
  line-height: 1.2;
  color: var(--white-color);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.top-text {
  font-size: 14px;
}

.top-logo {
  width: 84%;
  max-width: 800px;
  margin-top: 6%;
}

.top-subtext {
  font-size: 16px;
  letter-spacing: 0.15em;
  margin-top: 4%;
}

/* concept */
#concept {
  background-color: var(--white-color);
  text-align: center;
  padding-top: 72px;
}

.concept-logo {
  width: 50%;
  max-width: 240px;
}

.since {
  font-size: 12px;
  letter-spacing: 0.5em;
  margin-top: 32px;
}

.concept-text {
  font-weight: 500;
  line-height: 1.55;
  text-align: justify;
  margin-top: 40px;
}

.teams-title {
  font-size: 48px;
  line-height: 1;
  margin-top: 120px;
}

.teams-title-jp {
  font-size: 12px;
  display: block;
  margin-top: 8px;
}

.teams-text {
  letter-spacing: 0.15em;
  margin-top: 24px;
}

.teams-list {
  width: 100%;
  margin-top: 32px;
}

.teams:not(:first-child) {
  margin-top: 56px;
}

.teams-logo {
  width: 180px;
}

.teams-name {
  font-size: 40px;
  line-height: 1;
  margin-top: 32px;
}

.teams-name-jp {
  font-size: 14px;
  letter-spacing: 0.15em;
  display: block;
  margin-top: 4px;
}

.about {
  color: var(--white-color);
  position: relative;
  margin-top: 80px;
}

.about-content {
  width: 100%;
  position: absolute;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
}

.about-logo {
  width: 320px;
}

.about-text {
  font-size: 14px;
  font-weight: bold;
  color: var(--white-color);
  text-align: justify;
  width: 100%;
  max-width: 450px;
  margin-inline: auto;
  margin-top: 24px;
}

.penalty-text,
.kokuraya-text {
  display: inline-block;
}

.penalty-text img,
.kokuraya-text img {
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.penalty-text img {
  width: 64px;
}

.kokuraya-text img {
  width: 88px;
}

.section-title {
  font-size: 32px;
  letter-spacing: 0.1em;
  text-align: center;
}

/* material */
#material {
  padding-top: 40px;
}

.material-bg {
  background-image: url(../img/bg-material-sp.jpg);
  background-size: cover;
}

#material .inner {
  padding: 32px 4vw;
}

.material-content {
  color: var(--white-color);
}

.material-content:not(:first-child) {
  margin-top: 40px;
}

.material-title {
  font-size: 18px;
  letter-spacing: 0.1em;
}

.material-img {
  margin-top: 8px;
}

.material-text {
  margin-top: 8px;
}

.material-text li {
  font-size: 14px;
  margin-left: 1.1em;
  text-indent: -1.1em;
}

.material-text li::before {
  content: '・';
}

.function-list {
  display: flex;
  margin-top: 24px;
}

.function {
  text-align: center;
  width: calc(100% / 4);
  max-width: 120px;
}

.function img {
  width: 80%;
  max-width: 96px;
}

.function-name {
  font-size: 12px;
  margin-top: 8px;
}

.function-name-en {
  font-size: 9px;
  line-height: 1.2;
  margin-top: 8px;
}

/* function */
#function {
  padding-top: 40px;
}

/* design */
#design {
  padding-top: 40px;
}

.design-list {
  margin-top: 24px;
}

.design:not(:first-child) {
  margin-top: 48px;
}

.design-name {
  font-size: 18px;
  font-weight: bold;
  line-height: 32px;
  color: var(--white-color);
  background-color: var(--black-color);
  position: relative;
  padding-left: 16px;
}

.design-name::after {
  content: '';
  width: 0;
  height: 0;
  border-top: 32px solid var(--white-color);
  border-left: 20px solid transparent;
  position: absolute;
  top: 0;
  right: 0;
}

.design-text {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: normal;
  line-height: 1.2;
  margin-top: 8px;
}

.design:nth-child(5) .design-content {
  margin-top: 16px;
}

.design-logo {
  width: 320px;
  margin-top: 8px;
}

.design-content {
  width: 100%;
  max-width: 560px;
  margin-top: 32px;
  margin-inline: auto;
}

.design-lineup:not(:first-child) {
  margin-top: 48px;
}

.design-img {
  width: 80%;
}

.design-lineup:nth-child(odd) {
  text-align: left;
}

.design-lineup:nth-child(even) {
  text-align: right;
}

.design-btn {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

.design-btn .btn {
  color: var(--white-color);
  font-weight: bold;
  letter-spacing: normal;
  line-height: 1.8;
  border-radius: 6px;
  width: 48%;
  max-width: 200px;
  position: relative;
}

.design-btn .btn::after {
  content: '';
  width: calc(100% - 8px);
  height: calc(100% - 8px);
  border: 1px solid var(--white-color);
  border-radius: 4px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.catalog-btn {
  background-color: #565656;
}

.product-btn {
  background-color: #909090;
  margin-left: 10px;
}

/* footer */
#footer {
  letter-spacing: normal;
  margin-top: 80px;
}

.footer-wrapper {
  background-color: var(--black-color);
  padding: 16px;
}

.footer-inner {
  color: var(--white-color);
  width: 100%;
  max-width: 1170px;
  margin-inline: auto;
}

#footer .logo img {
  flex-wrap: wrap;
}

.footer-text {
  font-size: 12px;
  margin-top: 16px;
}

.footer-text .penalty-text img {
  width: 56px;
  margin-right: 4px;
}

.copyright-sp {
  font-size: 12px;
  background-color: var(--white-color);
  padding: 4px 16px;
}

.pc-menu,
.copyright-pc {
  display: none;
}

.copyright-pc {
  font-size: 14px;
}

@media (min-width: 576px) {
  /* concept */
  .top-text {
    font-size: 18px;
  }

  .top-subtext {
    font-size: 18px;
  }

  .about-content {
    top: 12%;
  }

  .about-text {
    font-size: 16px;
    line-height: 1.8;
    margin-top: 32px;
  }
}

@media (min-width: 768px) {
  .mainvisual {
    max-height: calc(100dvh - 78px);
  }

  #header {
    padding: 16px;
  }

  .pc-menu {
    display: flex;
    align-items: center;
  }

  .hamburger-menu {
    display: none;
  }

  .top-text {
    font-size: 24px;
  }

  .top-subtext {
    font-size: 32px;
  }

  /* concept */
  .teams-list {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .teams {
    width: 33%;
    max-width: 240px;
  }

  .teams:not(:first-child) {
    margin-top: 0;
  }

  .teams-name {
    font-size: 34px;
  }

  .about {
    text-align: left;
  }

  .about-content {
    top: 50%;
    transform: translate(-50%, -50%);
  }

  .about-logo {
    width: 46%;
    max-width: 540px;
  }

  .about-text {
    width: 56%;
    max-width: 640px;
    margin-inline: 0;
  }

  .penalty-text img {
    width: 72px;
  }

  .kokuraya-text img {
    width: 104px;
  }

  .section-title {
    font-size: 40px;
  }

  /* material */
  #material {
    padding-top: 60px;
  }

  .material-item {
    display: flex;
    align-items: center;
  }

  .material-item:last-child {
    align-items: normal;
  }

  .material-img {
    width: 50%;
    margin-right: 16px;
  }

  .function-content {
    width: 50%;
  }

  /* function */
  #function {
    padding-top: 60px;
  }

  /* design */
  #design {
    padding-top: 60px;
  }

  .design-name {
    font-size: 24px;
    line-height: 40px;
  }

  .design-name::after {
    border-top: 40px solid var(--white-color);
    border-left: 24px solid transparent;
  }

  .design-text {
    font-size: 16px;
  }

  .design-btn .btn {
    font-size: 18px;
  }

  /* footer */
  #footer {
    margin-top: 120px;
  }

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

  .footer-flex:first-child {
    align-items: center;
  }

  .footer-flex:last-child {
    align-items: flex-end;
  }

  .footer-text {
    font-size: 14px;
  }

  .copyright-pc {
    display: block;
  }

  .copyright-sp {
    display: none;
  }
}

@media (min-width: 1024px) {
  .logo img {
    width: 320px;
  }

  .top-text {
    font-size: 32px;
  }

  .top-subtext {
    font-size: 40px;
  }

  /* concept */
  .since {
    font-size: 14px;
  }

  .concept-text {
    font-size: 18px;
  }

  .teams-title {
    font-size: 56px;
  }

  .teams-title-jp {
    font-size: 16px;
  }

  .teams {
    max-width: 300px;
  }

  .teams-text {
    font-size: 18px;
  }

  .teams-logo {
    width: 70%;
  }

  .teams-name {
    font-size: 46px;
  }

  .about-text {
    font-size: 18px;
  }

  .penalty-text img {
    width: 88px;
  }

  .kokuraya-text img {
    width: 120px;
  }

  /* material */
  .material-title {
    font-size: 24px;
  }

  .material-img {
    margin-right: 24px;
  }

  .material-text li {
    font-size: 16px;
    font-weight: 500;
  }

  .function-name {
    font-size: 14px;
  }

  .function-name-en {
    font-size: 12px;
  }

  /* design */
  .design:not(:first-child) {
    margin-top: 80px;
  }

  .design-list {
    margin-top: 40px;
  }

  .design-title {
    display: flex;
    align-items: center;
  }

  .design-name {
    width: 400px;
  }

  .design-text {
    margin-top: 0;
    margin-left: 16px;
    flex: 1;
  }

  .design-logo {
    margin-top: 24px;
  }

  .design-content {
    margin-top: 64px;
  }

  .design:nth-child(-n + 4) .design-content {
    display: flex;
    align-items: flex-end;
  }

  .design:nth-child(-n + 4) .design-content {
    max-width: initial;
  }

  .design:nth-child(-n + 4) .design-lineup:not(:first-child) {
    margin-top: 0;
  }
}