* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  color: #1C2430;
  background: #fff;
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

img {
  display: block;
  max-width: 100%;
}

.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.en {
  font-family: "Montserrat", sans-serif;
}

section {
  padding: 92px 0;
}
@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }
}

.hero {
  position: relative;
  background: #0C1220;
  color: #fff;
  overflow: hidden;
  padding: 0;
}

header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
}

header .nav {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
header .nav .logo-box {
  width: 140px;
  padding: 1em;
}
header .nav .menu {
  display: flex;
  gap: 34px;
  padding: 26px 40px 0 0;
}
header .nav .menu a {
  position: relative;
  color: #fff;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.16em;
  padding: 6px 0;
  transition: opacity 0.2s;
}
header .nav .menu a:hover {
  opacity: 0.7;
}
header .nav .menu a:hover::after {
  width: 100%;
}
header .nav .menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: #fff;
  transition: width 0.25s;
}
@media (max-width: 768px) {
  header .nav .logo-box {
    width: 110px;
  }
  header .nav .menu {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 34px;
    padding: 0;
    background: rgba(16, 20, 24, 0.8);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
  }
  header .nav .menu a {
    color: #fff;
    font-size: 20px;
  }
  header .nav .menu.open {
    opacity: 1;
    visibility: visible;
  }
}

.burger {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
  margin: 22px 16px 0 0;
  position: relative;
  z-index: 41;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: 0.3s;
}
@media (max-width: 768px) {
  .burger {
    display: block;
  }
}

/* ---------- hero ---------- */
.hero-stage {
  position: relative;
  height: min(84vh, 660px);
  min-height: 460px;
}
.hero-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(90deg, rgba(10, 15, 28, 0.86) 0%, rgba(10, 15, 28, 0.55) 45%, rgba(10, 15, 28, 0.25) 100%);
}
.hero-stage .hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-stage .hero-slide.on {
  opacity: 1;
}
.hero-stage .hero-slide .hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: opacity 1.1s ease, transform 6s ease-out;
}
.hero-stage .hero-slide.on .hero-img {
  transform: scale(1.08);
}

.hero-copy {
  position: absolute;
  z-index: 3;
  left: 0;
  top: 60%;
  transform: translateY(-50%);
  width: 100%;
}
.hero-copy h1 {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  font-size: 60px;
  line-height: 1.12;
  letter-spacing: 0.01em;
  text-shadow: 0 3px 24px rgba(0, 0, 0, 0.4);
}
.hero-copy .sub {
  margin-top: 22px;
  font-size: 20px;
  font-weight: 500;
  color: #DCE6F5;
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .hero-copy h1 {
    font-size: clamp(30px, 9.4vw, 50px);
  }
  .hero-copy .sub {
    font-size: clamp(10px, 3.7vw, 20px);
  }
}

.hero-scroll {
  position: absolute;
  z-index: 4;
  left: 40px;
  bottom: 32px;
  width: 2px;
  height: 46px;
  background: rgba(255, 255, 255, 0.3);
}
.hero-scroll span {
  position: absolute;
  left: -3px;
  top: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  animation: heroScrollDot 1.8s ease-in-out infinite;
}

@keyframes heroScrollDot {
  0% {
    top: -8px;
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    top: 46px;
    opacity: 0;
  }
}
.kicker {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 2.4em;
  text-align: center;
}
@media (max-width: 768px) {
  .kicker {
    font-size: 2em;
  }
}

/* mission */
.mission p {
  max-width: 640px;
  margin: 18px auto;
  text-align: center;
  color: #42505E;
}
.mission p:last-child {
  margin-bottom: 0;
}
.mission .lead {
  color: #3E63D6;
  font-size: 1.4em;
  font-weight: 700;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .mission p {
    font-size: 0.9em;
    text-align: left;
  }
  .mission .lead {
    font-size: clamp(10px, 5.4vw, 24px);
    text-align: center;
  }
  .mission br {
    display: none;
  }
}

/* ---------- business ---------- */
.business {
  background: #3E63D6;
  padding: 70px 0 78px;
}
.business .biz-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}
.business .biz-cols .biz-col {
  display: flex;
  flex-direction: column;
  gap: 22px;
  height: 100%;
}
@media (max-width: 768px) {
  .business {
    padding: 50px 0;
  }
  .business .biz-cols {
    display: block;
  }
  .business .biz-col {
    margin-bottom: 22px;
  }
  .business .biz-col:last-child {
    margin-bottom: 0;
  }
}

.business .card {
  background: #fff;
  border-radius: 6px;
  padding: 26px 22px 28px;
  box-shadow: 0 10px 30px -16px rgba(0, 0, 0, 0.4);
  flex: 1;
}
.business .card .b-en {
  font-family: "Montserrat", sans-serif;
  font-weight: 800;
  font-size: 26px;
  letter-spacing: 0.06em;
  text-align: center;
}
.business .card .b-jp {
  font-weight: 700;
  font-size: 20px;
  text-align: center;
  margin-bottom: 16px;
}
.business .card .b-img {
  margin-bottom: 10px;
}
.business .card .b-desc {
  color: #42505E;
}
@media (max-width: 768px) {
  .business .card .b-en {
    font-size: 20px;
  }
  .business .card .b-jp {
    font-size: 16px;
  }
  .business .card .b-desc {
    font-size: 14px;
  }
}

.media {
  background: #fff;
  text-align: center;
  border-radius: 6px;
  margin: 2em 0;
  padding: 30px 0;
}
.media .head {
  font-weight: 700;
  font-size: 20px;
  text-align: center;
}
.media .media-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  list-style: none;
  margin-top: 28px;
}
.media .media-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(62, 99, 214, 0.06);
  border: 1px solid rgba(62, 99, 214, 0.25);
  border-radius: 999px;
  padding: 10px 16px;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: #2F4FB5;
  box-shadow: 0 6px 16px -10px rgba(0, 0, 0, 0.3);
}
.media .media-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3E63D6;
  flex-shrink: 0;
}

/* company */
.company h2 {
  margin-bottom: 32px;
}
.company .co-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 44px;
  align-items: stretch;
}
.company .co-grid .co-id {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
@media (max-width: 768px) {
  .company .co-grid {
    display: block;
  }
  .company .co-grid .co-id {
    display: none;
  }
}

.ab-table {
  width: 100%;
  border-collapse: collapse;
}
.ab-table th, .ab-table td {
  text-align: left;
  vertical-align: top;
  padding: 13px 6px;
  border-bottom: 1px solid #E2E7EE;
  font-size: 14px;
}
.ab-table th {
  width: 32%;
  font-weight: 700;
  white-space: nowrap;
}
.ab-table td {
  color: #42505E;
}
.ab-table ol {
  margin: 0;
  padding-left: 1.2em;
}

.contact {
  background: #101418;
  color: #fff;
  padding: 80px 0 90px;
}
.contact .c-title {
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  letter-spacing: 0.4em;
  font-size: 34px;
  text-align: center;
  margin-bottom: 8px;
}

.form_section {
  max-width: 680px;
  margin: 34px auto 0;
}
.form_section .c-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.form_section .c-row:first-child {
  border-top: 0;
}
.form_section .c-row .c-label {
  font-size: 13px;
  font-weight: 700;
  padding-top: 10px;
}
.form_section .c-row .c-label i {
  color: #2BAFCB;
  font-weight: 700;
  margin-left: 4px;
  font-size: 12px;
  font-style: normal;
}
.form_section .c-row input, .form_section .c-row textarea, .form_section .c-row select {
  width: 100%;
  border: 0;
  border-radius: 4px;
  background: #fff;
  color: #1C2430;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
}
.form_section .c-row textarea {
  resize: vertical;
}
.form_section .c-row .select {
  position: relative;
}
.form_section .c-row .select::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 15px;
  width: 8px;
  height: 8px;
  border-top: 2px solid #2BAFCB;
  border-right: 2px solid #2BAFCB;
  pointer-events: none;
  transform: translateY(-50%) rotate(135deg);
}
.form_section .c-row .select select {
  appearance: none;
  -webkit-appearance: none;
}
.form_section .form_submit {
  text-align: center;
  margin-top: 34px;
}
.form_section .form_submit button {
  background: #2BAFCB;
  color: #fff;
  border: 0;
  border-radius: 40px;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 46px;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: filter 0.2s;
}
.form_section .form_submit button:hover {
  filter: brightness(1.08);
}
@media (max-width: 768px) {
  .form_section .c-row {
    display: block;
  }
}

.error_blank {
  color: #2BAFCB;
  font-size: 0.9em;
}

/* footer */
footer {
  background: #0A0D11;
  color: #8A97A6;
  padding: 34px 0;
  text-align: center;
}
footer .fl {
  display: flex;
  gap: 22px;
  justify-content: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
footer .fl a {
  font-family: "Montserrat", sans-serif;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #B7C2CE;
}
footer .cp {
  font-family: "Montserrat", sans-serif;
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

/* thanks page */
.page-header {
  position: static;
  background: #0C1220;
}

.thanks {
  background: #101418;
  color: #fff;
  padding: 120px 0;
  text-align: center;
}
.thanks .thanks-heading {
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  letter-spacing: 0.1em;
  font-size: 28px;
  margin-bottom: 20px;
}
.thanks .thanks-text {
  color: #B7C2CE;
}
.thanks .thanks-back {
  margin-top: 40px;
}
.thanks .thanks-back a {
  display: inline-block;
  background: #2BAFCB;
  color: #fff;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 46px;
  letter-spacing: 0.04em;
  transition: filter 0.2s;
}
.thanks .thanks-back a:hover {
  filter: brightness(1.08);
}