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;
  font: inherit;
  vertical-align: baseline;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  scroll-behavior: smooth;
}

/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

li {
  list-style-type: none;
}

blockquote,
q {
  quotes: none;
}

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

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

button {
  background-color: transparent;
  border: none;
  cursor: pointer;
  outline: none;
  padding: 0;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
}

html {
  font-size: 62.5%;
}

body, * {
  font-family: "Noto Sans JP", sans-serif;
  letter-spacing: 0.05em;
}

p {
  font-size: 16px;
  line-height: 2;
  letter-spacing: 0.05em;
}

html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

ul, li {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  text-decoration: none;
}

.top-fv {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  padding: 4rem 2rem;
  z-index: 1;
}
.top-fv::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000 url("../images/fv-bg.webp") no-repeat center center;
  background-size: cover;
}
.top-fv::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.1) 100%);
  z-index: 1;
}
.top-fv__content {
  z-index: 2;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  position: relative;
}
.top-fv__title-wrapper {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
}
.top-fv__title-mask {
  overflow: hidden;
}
.top-fv__title-1 {
  font-size: 11.6rem;
  font-weight: 600;
  color: #F7FAFF;
  font-family: "Figtree", sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.3;
  white-space: pre-line;
  display: block;
  -webkit-transform: translateY(110%);
          transform: translateY(110%);
  -webkit-animation: fv-text-reveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
          animation: fv-text-reveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  -webkit-animation-delay: 0.4s;
          animation-delay: 0.4s;
}
.top-fv__title-2 {
  font-size: 11.6rem;
  font-weight: 600;
  color: #F7FAFF;
  font-family: "Figtree", sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.3;
  padding-left: 35.6rem;
  white-space: pre-line;
  display: block;
  -webkit-transform: translateY(110%);
          transform: translateY(110%);
  -webkit-animation: fv-text-reveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
          animation: fv-text-reveal 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  -webkit-animation-delay: 0.6s;
          animation-delay: 0.6s;
}
.top-fv__subtitle {
  font-size: 2rem;
  font-weight: 500;
  color: #F7FAFF;
  letter-spacing: 0.15em;
  opacity: 0;
  -webkit-transform: translateY(20px);
          transform: translateY(20px);
  -webkit-animation: fv-fade-up 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
          animation: fv-fade-up 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  -webkit-animation-delay: 1.6s;
          animation-delay: 1.6s;
  margin-top: 3rem;
}

@-webkit-keyframes fv-bg-zoom {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    -webkit-transform: scale(1.1);
            transform: scale(1.1);
  }
}

@keyframes fv-bg-zoom {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    -webkit-transform: scale(1.1);
            transform: scale(1.1);
  }
}
@-webkit-keyframes fv-text-reveal {
  0% {
    -webkit-transform: translateY(110%);
            transform: translateY(110%);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@keyframes fv-text-reveal {
  0% {
    -webkit-transform: translateY(110%);
            transform: translateY(110%);
  }
  100% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@-webkit-keyframes fv-fade-up {
  0% {
    opacity: 0;
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@keyframes fv-fade-up {
  0% {
    opacity: 0;
    -webkit-transform: translateY(20px);
            transform: translateY(20px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@media (max-width: 960px) {
  .top-fv {
    padding: 3rem 2rem;
  }
  .top-fv__title-1, .top-fv__title-2 {
    font-size: 12vw;
    padding-left: 0;
    line-height: 1.1;
  }
  .top-fv__subtitle {
    font-size: 1.4rem;
    margin-top: 2rem;
  }
}
@media (max-width: 480px) {
  .top-fv {
    padding: 2rem 1.6rem;
  }
  .top-fv__title-1, .top-fv__title-2 {
    font-size: 14vw;
  }
  .top-fv__subtitle {
    font-size: 1.2rem;
    letter-spacing: 0.1em;
  }
}
.top-about {
  position: relative;
  padding: 20rem 0 30rem;
  background: url("../images/top-about-bg.webp") no-repeat center center;
  background-size: cover;
  overflow: hidden;
}
.top-about__inner {
  position: relative;
  z-index: 1;
}
.top-about__text {
  padding: 23rem 0;
  text-align: center;
  font-size: 4rem;
  font-weight: 700;
  color: #0A1A2F;
  letter-spacing: 0.05em;
  line-height: 1.6;
  margin: 0;
}
.top-about__content {
  padding: 0 6.8rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  gap: 330px;
}
.top-about__description {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 4.8rem;
}
.top-about__description-text {
  font-size: 2.4rem;
  font-weight: 400;
  color: #0A1A2F;
  letter-spacing: 0.05em;
  line-height: 2;
  margin: 0;
  padding-bottom: 5.7rem;
  border-bottom: 1px solid #0A1A2F;
}
.top-about__image {
  position: relative;
  max-width: 392px;
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: 4px;
}
.top-about__image img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  display: block;
}

@media (max-width: 960px) {
  .top-about {
    padding: 8rem 0;
  }
  .top-about__header {
    margin-bottom: 60px;
  }
  .top-about__text {
    padding: 8rem 0 4rem;
  }
  .top-about__content {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 60px;
    padding: 0;
  }
  .top-about__headline {
    font-size: clamp(2rem, 5vw, 3.2rem);
    text-align: left;
  }
  .top-about__description {
    gap: 3.2rem;
  }
  .top-about__description-text {
    font-size: 1.5rem;
    padding-bottom: 2.4rem;
  }
  .top-about__image {
    max-height: 400px;
    width: 100%;
    aspect-ratio: 4/3;
    margin: 0 auto;
  }
}
.top-service {
  position: relative;
  padding: 200px 0;
  background: -webkit-gradient(linear, left top, left bottom, from(#0A1A2F), color-stop(50%, #15305F), to(#0A1A2F));
  background: linear-gradient(180deg, #0A1A2F 0%, #15305F 50%, #0A1A2F 100%);
  background-image: url("../images/middle-bg.webp");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  overflow: hidden;
}
.top-service__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 160px;
}
.top-service__service-section {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 80px;
}
.top-service__content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22rem;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: start;
}
.top-service__header {
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.top-service__list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 0;
}
.top-service__item {
  display: grid;
  grid-template-columns: 230px 1fr auto;
  gap: 48px;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 40px 0;
  border-bottom: 1px solid rgba(247, 250, 255, 0.2);
}
.top-service__item:last-child {
  border-bottom: none;
}
.top-service__item-image {
  width: 230px;
  height: 145px;
  border-radius: 8px;
  overflow: hidden;
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.top-service__item-image img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  display: block;
}
.top-service__item-text {
  position: relative;
  font-size: 2rem;
  font-weight: 500;
  color: #F7FAFF;
  letter-spacing: 0.05em;
  line-height: 1.6;
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
}
.top-service__item-text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background-color: #F7FAFF;
  -webkit-transition: width 0.3s ease;
  transition: width 0.3s ease;
}
.top-service__item:has(.top-service__item-btn:hover) .top-service__item-text::after {
  width: 100%;
}
.top-service__item-btn {
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(247, 250, 255, 0.3);
  background-color: transparent;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  cursor: pointer;
  -webkit-transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  -ms-flex-negative: 0;
      flex-shrink: 0;
  text-decoration: none;
  color: inherit;
  padding: 0;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}
.top-service__item-btn:hover {
  background-color: #F7FAFF;
  border-color: #F7FAFF;
}
.top-service__item-btn:hover .top-service__item-btn-icon {
  color: #0A1A2F;
}
.top-service__item-btn-icon {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 2.4rem;
  font-weight: 300;
  color: #F7FAFF;
  line-height: 1;
  width: 1em;
  height: 1em;
  -webkit-transition: color 0.3s ease;
  transition: color 0.3s ease;
}
.top-service__equipment-section {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 8rem;
}
.top-service__equipment-header {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: flex-end;
  gap: 4rem;
}
.top-service__equipment-btn {
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.top-service__equipment-btn--sp {
  display: none;
}
.top-service__equipment-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4.8rem;
}
.top-service__equipment-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 24px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.top-service__equipment-image {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: 12px;
  overflow: hidden;
}
.top-service__equipment-image img {
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  display: block;
  -webkit-transition: -webkit-transform 0.55s ease;
  transition: -webkit-transform 0.55s ease;
  transition: transform 0.55s ease;
  transition: transform 0.55s ease, -webkit-transform 0.55s ease;
}
.top-service__equipment-item:hover .top-service__equipment-image img {
  -webkit-transform: scale(1.3);
          transform: scale(1.3);
}
.top-service__equipment-caption {
  position: relative;
  font-size: 1.6rem;
  font-weight: 500;
  color: #F7FAFF;
  letter-spacing: 0.05em;
  line-height: 1.6;
  text-align: left;
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
}
.top-service__equipment-caption::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background-color: #F7FAFF;
  -webkit-transition: width 0.55s ease;
  transition: width 0.55s ease;
}
.top-service__equipment-item:hover .top-service__equipment-caption::after {
  width: 100%;
}

.top-studycase {
  position: relative;
  padding: 200px 0;
  background-color: #F7FAFF;
}
.top-studycase__inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 80px;
}
.top-studycase__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 80px;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: start;
}
.top-studycase__title {
  -ms-flex-negative: 0;
      flex-shrink: 0;
}
.top-studycase__content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 32px;
  max-width: 600px;
  margin-left: auto;
}
.top-studycase__text {
  font-size: 1.6rem;
  font-weight: 400;
  color: #0A1A2F;
  letter-spacing: 0.05em;
  line-height: 2;
  margin: 0;
}
.top-studycase__image {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
}
.top-studycase__image img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 960px) {
  .top-studycase {
    padding: 160px 0;
  }
  .top-studycase__inner {
    gap: 60px;
  }
  .top-studycase__header {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  .top-studycase__content {
    max-width: 100%;
    margin-left: 0;
  }
}
@media (max-width: 480px) {
  .top-studycase {
    padding: 120px 0;
  }
  .top-studycase__inner {
    gap: 48px;
  }
  .top-studycase__header {
    gap: 48px;
  }
  .top-studycase__content {
    gap: 24px;
  }
  .top-studycase__text {
    font-size: 1.5rem;
  }
}
.title-main--white .title-main__en {
  color: #F7FAFF;
}
.title-main--white .title-main__ja {
  color: rgba(247, 250, 255, 0.9);
}

@media (max-width: 960px) {
  .top-service {
    padding: 160px 0;
  }
  .top-service__inner {
    gap: 120px;
  }
  .top-service__service-section {
    gap: 60px;
  }
  .top-service__content {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  .top-service__item {
    grid-template-columns: 100px 1fr auto;
    gap: 32px;
    padding: 32px 0;
  }
  .top-service__item-image {
    width: 100px;
    height: 70px;
  }
  .top-service__item-text {
    font-size: 1.8rem;
  }
  .top-service__item-btn {
    width: 44px;
    height: 44px;
  }
  .top-service__item-btn-icon {
    font-size: 2.2rem;
  }
  .top-service__equipment-section {
    gap: 5rem;
  }
  .top-service__equipment-btn--pc {
    display: none;
  }
  .top-service__equipment-btn--sp {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-item-align: start;
        align-self: flex-start;
  }
  .top-service__equipment-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }
  .top-service__equipment-image {
    width: 100%;
    max-width: 400px;
  }
  .top-service__equipment-caption {
    text-align: left;
  }
}
@media (max-width: 480px) {
  .top-service {
    padding: 120px 0;
  }
  .top-service__inner {
    gap: 100px;
  }
  .top-service__service-section {
    gap: 48px;
  }
  .top-service__content {
    gap: 48px;
  }
  .top-service__item {
    grid-template-columns: 80px 1fr auto;
    gap: 24px;
    padding: 24px 0;
  }
  .top-service__item-image {
    width: 80px;
    height: 60px;
  }
  .top-service__item-text {
    font-size: 1.6rem;
  }
  .top-service__item-btn {
    width: 40px;
    height: 40px;
  }
  .top-service__item-btn-icon {
    font-size: 2rem;
  }
  .top-service__equipment-section {
    gap: 4rem;
  }
  .top-service__equipment-btn--pc {
    display: none;
  }
  .top-service__equipment-btn--sp {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-item-align: center;
        align-self: center;
  }
  .top-service__equipment-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .top-service__equipment-image {
    width: 100%;
    max-width: 400px;
  }
  .top-service__equipment-caption {
    text-align: left;
  }
}