@charset "UTF-8";

:root {
  --bg: #07111f;
  --bg-soft: #0f1f32;
  --surface: #ffffff;
  --surface-soft: #f4f9fc;
  --line: rgba(10, 45, 77, 0.12);
  --text: #10253a;
  --text-soft: #557089;
  --blue: #0a5ea8;
  --blue-deep: #083d69;
  --cyan: #33b2d6;
  --gold: #c9a45d;
  --shadow: 0 28px 60px rgba(5, 20, 38, 0.16);
  --font-sans: "Hiragino Sans", "Yu Gothic Medium", "Noto Sans JP", sans-serif;
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  --font-en: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  min-width: 320px;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(45, 163, 214, 0.16), transparent 28%),
    linear-gradient(180deg, #eaf7ff 0%, #f8fbfd 28%, #ffffff 100%);
  line-height: 1.9;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

.page-shell {
  overflow: clip;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(6, 20, 35, 0.78);
  backdrop-filter: blur(14px);
}

.header-inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
}

.logo-link img {
  width: 210px;
}

.global-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-list a {
  color: rgba(255, 255, 255, 0.88);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.nav-list a:hover {
  color: #ffffff;
  opacity: 0.72;
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  padding: 56px 0 68px;
  background:
    linear-gradient(135deg, rgba(5, 16, 30, 0.96), rgba(9, 43, 79, 0.92) 46%, rgba(19, 109, 168, 0.88)),
    url("/assets/img/hero-1-illustrated.png") center/cover;
  color: #ffffff;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at right top, rgba(255, 255, 255, 0.16), transparent 30%),
    radial-gradient(circle at left bottom, rgba(78, 207, 246, 0.18), transparent 22%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  gap: 42px;
}

.hero-copy {
  max-width: 760px;
  padding: 28px 0 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: rgba(218, 242, 255, 0.86);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 50px;
  height: 1px;
  background: rgba(217, 245, 255, 0.54);
}

.hero-catch {
  width: min(100%, 375px);
  margin-bottom: 22px;
  border-radius: 28px;
  box-shadow: 0 24px 48px rgba(0, 12, 26, 0.24);
}

.hero-text {
  max-width: 520px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 15px;
}

.hero-story {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.story-card {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(18px);
  animation: floatIn 0.9s ease forwards;
}

.story-card:nth-child(2) {
  animation-delay: 0.08s;
}

.story-card:nth-child(3) {
  animation-delay: 0.16s;
}

.story-card img {
  width: 100%;
  border-radius: 18px;
}

.story-copy {
  display: grid;
  gap: 8px;
}

.story-label {
  color: rgba(218, 242, 255, 0.84);
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.story-copy h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.story-copy p:last-child {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.section {
  padding: 108px 0;
}

.section-light {
  background: transparent;
}

.section-accent {
  background:
    radial-gradient(circle at top left, rgba(53, 173, 218, 0.16), transparent 28%),
    linear-gradient(180deg, #f2fbff 0%, #eef7fc 100%);
}

.section-deep {
  background:
    linear-gradient(180deg, rgba(8, 29, 50, 0.03), rgba(8, 29, 50, 0.08)),
    #ffffff;
}

.section-footer-tone {
  background:
    linear-gradient(180deg, rgba(7, 21, 37, 0.02), rgba(7, 21, 37, 0.08)),
    #f9fcfe;
}

.section-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.section-inner.narrow {
  width: min(860px, calc(100% - 40px));
}

.section-en {
  color: var(--blue);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-align: center;
}

.section-title {
  margin-top: 10px;
  color: var(--text);
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.12em;
}

.section-title::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin: 18px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.section-lead {
  margin-top: 26px;
  color: var(--text-soft);
  font-size: 16px;
}

.section-lead.center {
  text-align: center;
}

.prose {
  margin-top: 38px;
  padding: 44px 48px;
  border: 1px solid rgba(12, 83, 142, 0.12);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.prose p + p {
  margin-top: 1.5em;
}

.concept-copy {
  margin-top: 34px;
  text-align: center;
  color: var(--blue-deep);
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.8;
  letter-spacing: 0.08em;
}

.concept-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.concept-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 20px 45px rgba(7, 24, 42, 0.08);
  font-size: 15px;
}

.concept-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-deep), var(--cyan));
  color: #ffffff;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 375px);
  gap: 36px;
  align-items: center;
}

.section-image img,
.flow-image {
  width: 100%;
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.feature-grid li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px 12px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff, #f6fbff);
  text-align: center;
  font-size: 13px;
  box-shadow: 0 18px 34px rgba(10, 40, 68, 0.06);
}

.feature-grid img {
  width: 80px;
  height: 80px;
}

.business-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 40px;
}

.business-card {
  height: 100%;
  padding: 30px 26px;
  border-radius: 28px;
  background: #ffffff;
  border: 1px solid rgba(11, 66, 112, 0.08);
  box-shadow: 0 24px 46px rgba(8, 29, 50, 0.08);
}

.business-num {
  color: var(--gold);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.32em;
}

.business-card h3 {
  margin-top: 10px;
  color: var(--blue-deep);
  font-family: var(--font-serif);
  font-size: 25px;
  line-height: 1.5;
}

.business-card h3 span {
  display: block;
  margin-top: 4px;
  color: var(--text-soft);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.business-outline {
  margin-top: 16px;
  color: var(--blue);
  font-weight: 700;
}

.business-card p + p {
  margin-top: 1em;
}

.flow-wrap {
  text-align: center;
}

.flow-image {
  width: min(100%, 860px);
  margin: 34px auto 0;
}

.company-table {
  width: min(860px, 100%);
  margin: 38px auto 0;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.company-table th,
.company-table td {
  padding: 20px 22px;
  border-bottom: 1px solid rgba(10, 45, 77, 0.08);
  vertical-align: top;
  text-align: left;
  font-size: 15px;
}

.company-table th {
  width: 180px;
  color: var(--blue-deep);
  font-weight: 700;
  background: rgba(237, 247, 255, 0.86);
}

.site-footer {
  position: relative;
  padding: 36px 20px 28px;
  background: linear-gradient(180deg, #f9fcfe 0%, #eff8fd 100%);
}

.footer-card {
  width: min(760px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 26px 28px;
  position: relative;
  z-index: 1;
  border-radius: 28px;
  background: rgba(6, 19, 34, 0.88);
  box-shadow: var(--shadow);
  text-align: center;
  color: rgba(255, 255, 255, 0.86);
}

.footer-card img {
  width: min(100%, 250px);
  margin: 0 auto 14px;
}

.footer-card p {
  margin-bottom: 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 0.08em;
}

.footer-card small {
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  letter-spacing: 0.08em;
}

@keyframes floatIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .section-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 12px 0 0;
  }

  .hero-story {
    grid-template-columns: 1fr;
  }

  .section-image {
    justify-self: center;
  }

  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .business-cards,
  .concept-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  html {
    scroll-padding-top: 74px;
  }

  .header-inner {
    width: calc(100% - 28px);
    min-height: 74px;
  }

  .logo-link img {
    width: 154px;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
  }

  .nav-toggle span {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: #ffffff;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-list {
    position: absolute;
    top: calc(100% + 10px);
    right: 14px;
    min-width: 200px;
    padding: 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    border-radius: 18px;
    background: rgba(6, 19, 34, 0.95);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .nav-list.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    padding: 34px 0 48px;
  }

  .hero-inner,
  .section-inner {
    width: calc(100% - 28px);
  }

  .section {
    padding: 78px 0;
  }

  .section-title {
    letter-spacing: 0.08em;
  }

  .prose {
    padding: 28px 22px;
    border-radius: 24px;
  }

  .concept-copy {
    line-height: 1.7;
  }

  .concept-list,
  .business-cards,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .concept-list li,
  .business-card {
    padding: 22px 18px;
  }

  .company-table {
    display: block;
    border-radius: 24px;
  }

  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    padding-bottom: 8px;
    border-bottom: 0;
  }

  .company-table td {
    padding-top: 0;
  }

  .footer-card {
    width: calc(100% - 28px);
    margin-top: 0;
    padding: 24px 20px;
  }
}

.contact-form {
  margin-top: 38px;
  padding: 40px 44px;
  border: 1px solid rgba(12, 83, 142, 0.12);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
  display: grid;
  gap: 22px;
}

.form-item {
  display: grid;
  gap: 8px;
}

.form-label {
  font-weight: 700;
  color: var(--blue-deep);
  font-size: 14px;
}

.form-require {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--gold);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(10, 45, 77, 0.2);
  border-radius: 14px;
  background: #ffffff;
  font: inherit;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(10, 94, 168, 0.14);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-error {
  color: #c0392b;
  font-size: 13px;
}

.form-success {
  margin-top: 30px;
  padding: 18px 22px;
  border-radius: 16px;
  background: rgba(46, 158, 96, 0.1);
  border: 1px solid rgba(46, 158, 96, 0.4);
  color: #1d7a48;
  font-weight: 700;
  text-align: center;
}

.form-submit {
  text-align: center;
}

.form-button {
  min-width: 240px;
  padding: 16px 40px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.12em;
  box-shadow: 0 18px 34px rgba(8, 61, 105, 0.28);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.form-button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

@media (max-width: 767px) {
  .contact-form {
    padding: 26px 20px;
    border-radius: 24px;
  }
}