html {
  scroll-behavior: smooth;
}
@media (min-width:641px) {
  header {
    display: none;
  }
  .sp {
    display: none;
  }
}
@media (max-width:640px) {
  header {
    position: fixed;
    top:0 ;
    left: 0;
    width: 100vw;
    background-image: url(../images/bg.png);
    background-color: rgba(255, 255, 255, 0.8);
    background-blend-mode: lighten;
    background-size: cover;
    background-repeat: repeat-y;
    z-index: 10000;
  }
  .top-banner {
    height: 50px;
  }
  .top_logo-area {
    display: inline-block;
    padding: 4px 20px;
  }
  .top_logo-area img {
    width: 71.24px;
  }
  .pc {
    display: none;
  }
  body {
    padding-top: 50px;
  }
}

main {
  background-image: url(../images/bg.png);
  background-color: rgba(255, 255, 255, 0.8);
  background-blend-mode: lighten;
  background-size: cover;
  background-repeat: repeat-y;
}
#FirstView {
  width: calc(100vw - var(--scrollbarWidth));
  height: calc(53.3vw - var(--scrollbarWidth)); 
  background-image: url(../images/fv.jpg);
  background-size: cover;
}
.nav-area {
  width: 277px;
  width: clamp(138.5px, 19.22vw, 831px);
  height: 100%;
  margin: 0;
  background-color: rgba(42, 42, 42, 0.7);
}
@media (max-width:640px) {
  #FirstView {
    width: calc(100vw - var(--scrollbarWidth));
    height: calc(159.7vw - var(--scrollbarWidth)); 
    background-image: url(../images/fv_sp.jpg);
    background-size: cover;
  }
  .nav-area {
    display: none;
  }
}
.nav_menu {
  width: 50%;
  min-width: 120px;
  height: 100%;
  margin: 0 auto;
  padding-top: clamp(30px, 6.94vw, 100px);
}
.nav_menu ul {
  margin-top: 40px;  
  margin-top: clamp(20px, 2.77vw, 120px);
}
.nav_menu li {
  position: relative;
  margin-top: 40px;  
  margin-top: clamp(20px, 2.77vw, 120px);
  font-size: 17px;
  font-size: clamp(12px, 1.18vw, 51px);
  color: #ffffff;
  padding-left: 24px;
  padding-left: clamp(12px, 1.67vw, 72px);
}
.nav_menu li::before{
  content:'';
  position: absolute;
  top: 50%;
  left: 0px;
  width: 6px;
  height: 6px;
  display: inline-block;
  background-color: #ffffff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.logo-area {
  width: 70%;
  margin: 0 auto;
}
.logo-area img {
  width: 100%;
  min-width: 82px;
}
.scrool {
  position: absolute;
  width: 93px;
  width: clamp(70px, 6.45vw, 279px);
  height: 93px;
  height: clamp(70px, 6.45vw, 279px);
  top: calc(43.5vw - 24px);
  left: 50%;
  transform: translate(-50%, 0);
}
@media (max-width: 640px) {
  .scrool {
    top: calc(150.5vw - 15px);
  }  
}
.scrool a {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
}
.scrool a p {
  font-family: Anton;
  font-size: 20px;
  font-size: clamp(14px, 1.38vw, 60px);
  text-align: center;
  height: 6.45vw;
  line-height: clamp(70px, calc(6.45vw + 4px), 279px);
  margin-bottom: 0px;
}
.scrool img {
  position: absolute;
  width: 100%;
  bottom: 0;
}
.bar {
  width: 4px;
  width: clamp(2.4px, 0.22vw, 8px);
  height: 0;
  background-color: #000000;
  position: absolute;
  top: 75%;
  left: 50%;
  transform: translateX(-50%); /* 横方向に中央揃え */
  transition: all 0.03s ease-in-out;
  border-radius: 1.2vw;
}

@media (hover: hover) {
  .scrool:hover .bar {
    animation: grow 0.2s ease-in-out forwards;
  }
}
@media (hover: none) {
  .bar {
    height: calc(9.8vw + 16px);
  }
/*
  .scrool:active .bar {
    animation: grow 0.2s ease-in-out forwards;
  }
*/
}
@keyframes grow {
  0% {
    height: 0;
  }
  100% {
    height: calc(9.8vw + 16px);
  }
}

#PHILOSOPHY {
  position: relative;
  margin-top: 140px;
  margin-top: 10vw;
  padding-top: 32px;
  padding-top: 2vw;
  background-image: url(../images/bg_philosophy.png);
  background-size: cover;
  background-position: top center;
}
.philosophy-box {
  padding: 12.5vw 0 16.5vw 0;
  margin: 0 auto;
  text-align: center;
}
.sec_tit {
  font-family: Anton;
  font-size: 45px;
  font-size: clamp(35px, 3.125vw, 135px);
  line-height: 50px;
  line-height: clamp(25px, 3.47vw, 150px);
  padding-left: clamp(100px, 13.9vw, 600px);
}
@media (max-width:640px) {
  #PHILOSOPHY {
    background-image: none;
    margin-top: -50px;
    padding-top: 80px;
  }
  .philosophy-box {
    background-image: url(../images/bg_philosophy_sp.png);
    background-size: 100% 100%;
    background-position: top center;
    background-repeat: no-repeat;
    padding-top: clamp(90px, 25vw, 180px);
    padding-bottom: clamp(60px, -0.625rem + 17.5vw, 130px);
  }
  .sec_tit {
    padding-left: 20px;
  }
}
.catch_tit {
  display: inline-block;
  font-family: "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", "游明朝", "Yu Mincho", YuMincho;
  font-size: 40px;
  font-size: clamp(25px, 2.77vw, 120px);
  letter-spacing: 0.1rem;
  line-height: 50px;
  line-height: clamp(25px, 3.47vw, 150px);
  background: linear-gradient(to top, #E1EAE9 0%, #E1EAE9 60%, transparent 60%, transparent 100%);
}
.catch_tit_ja {
  font-family: "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", "游明朝", "Yu Mincho", YuMincho;
  font-size: 19px;
  font-size: clamp(13px, 1.32vw, 57px);
  font-weight: 600;
  letter-spacing: 0.1rem;
  line-height: 50px;
  line-height: clamp(25px, 3.47vw, 150px);
}
.philosophy_txt {
  font-family: "Hiragino Mincho ProN", "ヒラギノ明朝 ProN", "游明朝", "Yu Mincho", YuMincho;
  font-size: 19px;
  font-size: clamp(13px, 1.32vw, 57px);
  font-weight: 300;
  letter-spacing: 0.1em;
  line-height: 50px;
  line-height: clamp(25px, 3.47vw, 150px);
  padding-top: 20px;
  padding-top: clamp(10px, 1.39vw, 60px);
}
.philosophy_txt p {
  margin-bottom: 0;
}
@media (max-width:640px) {
  .catch_tit {
    font-size: clamp(25px, 1.125rem + 1.75vw, 32px);
  }
  .catch_tit_ja {
    font-size: clamp(13px, 0.4375rem + 1.5vw, 19px);
  }
  .philosophy_txt {
    font-size: clamp(13px, 0.4375rem + 1.5vw, 19px);
    letter-spacing: 0.03em;
    padding: clamp(20px, -2.5rem + 15vw, 80px) 20px 0;
    text-align: left;
    line-height: clamp(30px, 0.625rem + 5vw, 50px);
  }
}

#OUR_SERVICES {
  margin-top: 140px;
  margin-top: 10vw;
  padding-top: 32px;
  padding-top: 2vw;
}
@media (max-width:640px) {
  #OUR_SERVICES {
    margin-top: -50px;
    padding-top: 80px;
  }
}
.services-box {
  border-top: 2px solid #2a2a2a;
  border-bottom: 2px solid #2a2a2a;
  margin: 20px 200px;
  margin: clamp(10px, 1.39vw, 60px) clamp(100px, 13.9vw, 600px);
  padding-top: 20px;
  padding-top: clamp(10px, 1.39vw, 60px);
}
.services-box section {
  margin-bottom: 10px;
  margin-bottom: clamp(10px, 1.39vw, 60px);
}
.services_container {
  position: relative;
  display: flex;
}
.txt_container {
  width: 100%;
}
.img_container.right {
  position: absolute;
  top: 0;
  right: 0;
  left: auto;
  width: clamp(240px, 48.6vw, 1534px);
}
.img_container.left {
  position: absolute;
  top: 0;
  left: 0;
  width: clamp(240px, 48.6vw, 1534px);
}
@media (max-width:640px) {
  .services-box {
    border-top: 1px solid #2a2a2a;
    border-bottom: none;
    margin: 20px;
    padding-top: 20px;
  }
  .services-box section {
    margin: clamp(25px, 0.625rem + 3.75vw, 40px) 0;
  }
  #recruitment_consulting, #management_consulting, #video_production {
    width: 100%;
  }
  .services_container {
    display: block;
    border-bottom: 1px solid #2a2a2a;
    padding-bottom: clamp(25px, 0.625rem + 3.75vw, 40px);
  }
  .img_container.left, .img_container.right {
    position: relative;
    display: block;
    width: 100%;
  }
}
.block_tit {
  display: inline-block;
  font-size: clamp(25px, 3.47vw, 150px);
  font-weight: 900;
  line-height: 60px;
  line-height: clamp(30px, 4.17vw, 180px);
  letter-spacing: 0.05em;
  text-align: left;
  padding: 45px 0 80px 0;
  padding-top: clamp(22.5px, 3.125vw, 135px);
  padding-bottom: clamp(40px, 5.56vw, 240px);
}
.block_tit.one {
  padding: 68px 0 88px 0;
  padding-top: clamp(34px, 4.72vw, 204px);
  padding-bottom: clamp(34px, 6.11vw, 264px);
}
.block_num {
  font-family: Anton;
  font-size: 70px;
  font-size: clamp(35px, 4.86vw, 210px);
  font-weight: normal;
  line-height: 42px;
  line-height: clamp(21px, 2.92vw, 126px);
}
.block_tit.right, .block_num.right{
  display: flex;
  justify-content: end;
}
@media (max-width:640px) {
  .title_area {
    display: flex;
    vertical-align: middle;
    padding: 20px 0 0 0;
  }
  .block_tit, .block_tit.one {
    font-size: clamp(20px, 0.625rem + 2.5vw, 30px);
    line-height: clamp(30px, 0.9375rem + 3.75vw, 45px);
    padding: 0 30px 0 0;
  }
  .block_num {
    font-size: clamp(30px, 0.9375rem + 3.75vw, 45px);
    line-height: clamp(30px, 0.9375rem + 3.75vw, 45px);
    padding: 0;
  }
}
.block_content {
  width: 50%;
  max-width: 1380px;
  padding-top: 30px;
  padding-top: clamp(15px, 2.08vw, 45px);
  padding-bottom: 1vw;
}
.block_content.right {
  margin-left: auto;
}
.block_lead {
  font-size: 25px;
  font-size: clamp(12.5px, 1.174vw, 75px);
  font-weight: 900;
  line-height: 40px;
  line-height: clamp(20px, 2.77vw, 120px);
  letter-spacing: 0.05em;
  padding-bottom: 20px;
  padding-bottom: clamp(10px, 1.385vw, 60px);
}
.block_txt {
  font-size: 17px;
  font-size: clamp(8.5px, 1.174vw, 52px);
  font-weight: normal;
  line-height: 40px;
  line-height: clamp(20px, 2.77vw, 120px);
  letter-spacing: 0.05em;
}
@media (max-width:640px) {
  .block_content {
    width: 100%;
  }
  .block_lead {
    font-size: clamp(18px, 0.75rem + 1.5vw, 24px);   
    padding-top: 16px; 
  }
  .block_txt {
    font-size: clamp(13px, 0.4375rem + 1.5vw, 19px);
    line-height: clamp(30px, 0.9375rem + 3.75vw, 45px);
    padding-top: 12px;
  }
}
#ABOUT_US {
  margin-top: 140px;
  margin-top: 10vw;
  padding-top: 32px;
  padding-top: 2.4vw;
}
@media (max-width:640px) {
  #ABOUT_US {
    margin-top: -50px;
    padding-top: 80px;
  }
}
.company-box {
  border-top: 2px solid #2a2a2a;
  margin: 20px 200px;
  margin: clamp(10px, 1.39vw, 60px) clamp(100px, 13.9vw, 600px);
  padding: 10px 0;
  padding-top: clamp(5px, 0.695vw, 30px);
}
@media (max-width:640px) {
  .company-box {
    margin: clamp(10px, 1.39vw, 60px) 20px;
  }
}
.company_info {
  background-color: rgba(255, 255, 255, 0.6);
  margin-top: 16px;
  margin-top: clamp(8px, 1.111vw, 48px);
  font-size: 17px;
  font-size: clamp(8.5px, 1.174vw, 52px);
  font-weight: 500;
  line-height: 115px;
  line-height: clamp(57.5px, 7.999vw, 345px);
  letter-spacing: 0.05em;
  padding: 0 20px;
  padding: 0 clamp(10px, 1.39vw, 60px);
}
.company_info dl {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}
.company_info dt {
  width: 20%;
  border-bottom: 1px solid rgba(0, 0, 0, 0.5);
  letter-spacing: 0.5em;
}
.company_info dd {
  width: 80%;
  border-bottom: 1px solid rgba(0, 0, 0, 0.5);
  letter-spacing: 0.05em;
}
.company_info dt:last-of-type, .company_info dd:last-of-type {
  border-bottom: none;
}
@media (max-width:640px) {
  .company_info {
    background-color: transparent;
    font-size: clamp(13px, 0.4375rem + 1.5vw, 19px);
    line-height: clamp(18px, 0.375rem + 3vw, 30px);
    letter-spacing: 0.03em;
  }
  .company_info dt {
    background-color: rgba(255, 255, 255, 0.6);
    width: 30%;
    letter-spacing: 0.03em;
    text-align: center;
    border: none;
    margin-bottom: 4px;
    padding: 14px 0;
  }
  .company_info dd {
    background-color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.03em;
    width: 70%;
    border: none;
    margin-bottom: 4px;
    padding: 14px 20px 14px 0;
  }
}
.to_top {
  display: block;
  width: 80px;
  width: clamp(40px, 5.55vw, 120px);
  height: 5.55vw;
  height: clamp(40px, 5.55vw, 120px);
  margin: 200px auto 20px;
  margin-top: clamp(100px, 13.9vw, 600px);
  margin-bottom: clamp(40px, 1.385vw, 60px);
  padding-bottom: 40px;
  padding-bottom: clamp(20px, 2.77vw, 120px);
  text-align: center;
}
.to_top a {
  display: inline-block;
  text-align: center;
}
/*
.to_top a:hover img {
  transform: translatey(-10px);
  transition: all 0.4s ease-in-out;
}
*/
.to_top a p {
  font-family: Anton;
  font-size: 20px;
  font-size: clamp(20px, 1.385vw, 60px);
  padding: clamp(10px, 0.695vw, 60px) 0;
  margin: 0;
}
@media (max-width:640px) {
  .to_top {
    margin-top: 16px;
  }
}
#CONTACT {
  background-image: url(../images/contct_bg.png);
  background-position: top center;
  background-size: cover;
  background-repeat: no-repeat;
  color: #ffffff;
}
.contact_container {
  padding: 100px 80px 30px;
  padding: clamp(50px, 6.94vw, 150px) clamp(40px, 5.55vw, 240px) clamp(15px, 2.08vw, 45px);
}
.menu-content {
  display: flex;
  justify-content: space-between;
  align-items: end;
  padding-bottom: 20px;
  padding-bottom: clamp(0.625rem, 0.695vw, 1.875rem);
  border-bottom: 1px solid rgba(185, 185, 185, 0.7);
}
.foot_logo {
  width: 100%;
  max-width: 108px;
  bottom: 0;
}
.menu ul {
  display: flex;
  justify-content: end;
}
.menu li {
  font-size: 17px;
  font-size: clamp(11px, 1.174vw, 52px);
  padding-left: 45px;
  padding-left: clamp(22.5px, 3.125vw, 135px);
}
.address-content {
  display: flex;
  justify-content: space-between;
  align-items: end;
  padding: 20px 0 30px 0;
  padding-top: clamp(10px, 0.695vw, 60px);
  padding-bottom: clamp(15px, 28.8vw, 90px);
}
.company_txt, .copyright {
  font-size: 17px;
  font-size: clamp(8.5px, 1.174vw, 52px);
}
@media (max-width:640px) {
  .contact_container {
    padding: 50px 20px 30px;
  }
  .menu-content {
    display: block;
  }
  .menu ul {
    justify-content: center;
    padding-bottom: 40px;
  }
  .menu li {
    font-size: clamp(11px, 0.5rem + 0.75vw, 14px);
  }
  .menu li:first-of-type {
    padding-left: 0;
  }
  .address-content {
    padding-top: 40px;
    padding-bottom: 0;
  }
  .tel.sp {
    position: relative;
    background-color: rgba(255, 255, 255, 0.1);
    border-top: 1px solid #ffffff;
    border-bottom: 1px solid #ffffff;
    text-align: center;
    margin-left: 20px;
    margin-right: 20px;
    padding: clamp(10px, 0.695vw, 60px) 0;
    font-size: clamp(16px, 0.75rem + 1vw, 20px);
  }
  .tel.sp a:after {
    content: url(../images/arrow-r.svg);
    position: absolute;
    top: 50%;
    right: 0;
    transform: translate(-70%, -50%);
  }
  .tel.sp span {
    font-size: clamp(11px, 0.5rem + 0.75vw, 14px);
    padding-left: 2px;
  }
  .tel.sp span:before {
    content: url(../images/tel.svg);
    display: inline-block;
    width: clamp(11px, 0.5rem + 0.75vw, 14px);
    height: auto;
    position: relative;
    top: 3px;
  }
  .company_txt, .copyright {
    font-size: clamp(11px, 0.5rem + 0.75vw, 14px);
    line-height: clamp(18px, 0.375rem + 3vw, 30px);
  }
  .copyright {
    padding-top: 40px;
    padding-bottom: clamp(15px, 28.8vw, 90px);
    text-align: center;
  }
}