:root {
  --color-navy: #10223f;
  --color-navy-soft: #183459;
  --color-blue: #2f6f9f;
  --color-blue-light: #e7f2f8;
  --color-gold: #b99045;
  --color-gold-light: #f6efe1;
  --color-teal: #2e8a82;
  --color-ink: #1d2939;
  --color-muted: #657287;
  --color-line: #d8e0ea;
  --color-bg: #f6f8fb;
  --color-white: #ffffff;
  --shadow-card: 0 20px 45px rgba(16, 34, 63, 0.08);
  --shadow-soft: 0 16px 36px rgba(16, 34, 63, 0.12);
  --radius: 8px;
  --header-height: 78px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.75;
  background: var(--color-white);
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
}

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

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(185, 144, 69, 0.55);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-140%);
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-navy);
  border-radius: 6px;
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.section {
  padding: 96px 0;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.section-compact {
  padding: 72px 0;
}

.section-muted {
  background: var(--color-bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(216, 224, 234, 0.8);
  backdrop-filter: blur(16px);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(16, 34, 63, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  color: var(--color-navy);
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-name {
  font-size: 1.25rem;
}

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

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-ink);
  font-size: 0.94rem;
  font-weight: 700;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-navy);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  padding: 104px 0 88px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(16, 34, 63, 0.97), rgba(24, 52, 89, 0.92)),
    radial-gradient(circle at 86% 22%, rgba(185, 144, 69, 0.32), transparent 28%),
    linear-gradient(180deg, #10223f, #183459);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.08));
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  gap: 72px;
  align-items: center;
}

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

.hero-logo-lockup {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 128px;
  min-height: 150px;
  margin-bottom: 22px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 8px;
  box-shadow: 0 18px 38px rgba(3, 12, 29, 0.24);
}

.hero-logo-lockup img {
  display: block;
  width: 100%;
  height: auto;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--color-gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.solution-copy h2,
.contact-inner h2 {
  margin: 0;
  line-height: 1.28;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: 3rem;
  font-weight: 800;
}

.hero-lead {
  max-width: 760px;
  margin-top: 26px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 156px;
  min-height: 52px;
  padding: 12px 22px;
  font-weight: 800;
  border: 1px solid transparent;
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--color-navy);
  background: var(--color-gold);
  box-shadow: 0 16px 26px rgba(185, 144, 69, 0.28);
}

.button-secondary {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.32);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.14);
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.visual-orbit {
  position: absolute;
  inset: 48px 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  transform: rotate(-6deg);
}

.visual-orbit::before,
.visual-orbit::after {
  position: absolute;
  content: "";
  background: rgba(255, 255, 255, 0.2);
}

.visual-orbit::before {
  top: 50%;
  right: 12%;
  left: 12%;
  height: 1px;
}

.visual-orbit::after {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
}

.visual-card {
  position: absolute;
  display: flex;
  min-width: 190px;
  min-height: 138px;
  flex-direction: column;
  justify-content: center;
  padding: 22px;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  box-shadow: 0 24px 42px rgba(3, 12, 29, 0.26);
  backdrop-filter: blur(14px);
}

.visual-card-main {
  top: 170px;
  left: 98px;
  min-width: 250px;
  min-height: 166px;
  background: rgba(255, 255, 255, 0.14);
}

.visual-card-ai {
  top: 44px;
  right: 4px;
}

.visual-card-cloud {
  right: 42px;
  bottom: 58px;
}

.visual-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 12px;
  padding: 4px 10px;
  color: var(--color-navy);
  font-size: 0.75rem;
  font-weight: 800;
  background: var(--color-gold);
  border-radius: 999px;
}

.visual-card strong {
  font-size: 1.1rem;
}

.visual-card small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.84rem;
}

.visual-node {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--color-gold);
  border: 4px solid rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  box-shadow: 0 0 0 10px rgba(185, 144, 69, 0.16);
}

.node-one {
  top: 102px;
  left: 76px;
}

.node-two {
  right: 40px;
  top: 260px;
}

.node-three {
  bottom: 132px;
  left: 54px;
}

.section-heading {
  max-width: 720px;
}

.section-heading-center {
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading h2,
.solution-copy h2,
.contact-inner h2 {
  color: var(--color-navy);
  font-size: 2.1rem;
  font-weight: 800;
}

.section-heading p:not(.eyebrow) {
  margin-top: 16px;
  color: var(--color-muted);
}

.split-layout {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 56px;
  align-items: start;
}

.text-panel {
  padding-left: 34px;
  border-left: 4px solid var(--color-gold);
}

.text-panel p + p {
  margin-top: 16px;
}

.text-panel-accent {
  padding: 34px;
  background: var(--color-gold-light);
  border: 1px solid #eadab9;
  border-left: 4px solid var(--color-gold);
  border-radius: 8px;
}

.card-grid {
  display: grid;
  gap: 22px;
}

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

.strength-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  min-height: 250px;
  padding: 28px;
  background: var(--color-white);
  border: 1px solid rgba(216, 224, 234, 0.86);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.card h3 {
  margin: 20px 0 12px;
  color: var(--color-navy);
  font-size: 1.12rem;
  line-height: 1.45;
  letter-spacing: 0;
}

.card p {
  color: var(--color-muted);
  font-size: 0.96rem;
}

.card-icon {
  position: relative;
  width: 48px;
  height: 48px;
  background: var(--color-blue-light);
  border: 1px solid #cbe1ed;
  border-radius: 8px;
}

.card-icon::before,
.card-icon::after {
  position: absolute;
  content: "";
}

.icon-crm::before {
  inset: 11px 10px auto;
  height: 8px;
  border: 2px solid var(--color-blue);
  border-radius: 8px;
}

.icon-crm::after {
  right: 10px;
  bottom: 11px;
  left: 10px;
  height: 12px;
  border: 2px solid var(--color-blue);
  border-radius: 4px;
}

.icon-app::before {
  inset: 10px;
  border: 2px solid var(--color-blue);
  border-radius: 5px;
}

.icon-app::after {
  top: 19px;
  right: 13px;
  left: 13px;
  height: 2px;
  background: var(--color-blue);
  box-shadow: 0 8px 0 var(--color-blue);
}

.icon-ai::before {
  inset: 12px;
  border: 2px solid var(--color-teal);
  border-radius: 50%;
}

.icon-ai::after {
  width: 7px;
  height: 7px;
  top: 10px;
  left: 10px;
  background: var(--color-teal);
  border-radius: 50%;
  box-shadow: 21px 0 0 var(--color-teal), 10px 24px 0 var(--color-teal);
}

.icon-cloud::before {
  width: 26px;
  height: 16px;
  right: 10px;
  bottom: 13px;
  background: var(--color-blue);
  border-radius: 999px;
}

.icon-cloud::after {
  width: 18px;
  height: 18px;
  top: 14px;
  left: 11px;
  background: var(--color-blue);
  border-radius: 50%;
  box-shadow: 13px -4px 0 1px var(--color-blue);
}

.icon-web::before {
  inset: 11px 9px;
  border: 2px solid var(--color-blue);
  border-radius: 5px;
}

.icon-web::after {
  top: 17px;
  left: 9px;
  width: 30px;
  height: 2px;
  background: var(--color-blue);
}

.card-numbered {
  min-height: 270px;
  padding-top: 58px;
}

.card-number {
  position: absolute;
  top: 22px;
  left: 28px;
  color: var(--color-gold);
  font-size: 0.82rem;
  font-weight: 900;
}

.solution-section {
  background:
    linear-gradient(90deg, rgba(16, 34, 63, 0.04), transparent 42%),
    var(--color-white);
}

.solution-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 1.05fr);
  gap: 52px;
  align-items: center;
}

.solution-copy p:not(.eyebrow) {
  margin-top: 18px;
  color: var(--color-muted);
}

.solution-board {
  display: grid;
  gap: 14px;
  padding: 30px;
  background: var(--color-navy);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.board-item {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  color: var(--color-white);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.board-item span {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  background: var(--color-gold);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(185, 144, 69, 0.18);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tag-list li {
  padding: 9px 16px;
  color: var(--color-navy);
  font-size: 0.94rem;
  font-weight: 800;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 999px;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.flow-list li {
  position: relative;
  min-height: 134px;
  padding: 22px 16px;
  background: var(--color-white);
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: 8px;
}

.flow-list li::after {
  position: absolute;
  top: 50%;
  right: -10px;
  width: 10px;
  height: 2px;
  content: "";
  background: var(--color-line);
}

.flow-list li:last-child::after {
  content: none;
}

.flow-list span {
  display: block;
  margin-bottom: 16px;
  color: var(--color-gold);
  font-size: 0.78rem;
  font-weight: 900;
}

.flow-list strong {
  display: block;
  color: var(--color-navy);
  font-size: 0.98rem;
  line-height: 1.55;
}

.origin-section {
  background: linear-gradient(180deg, var(--color-white), #fbfcfe);
}

.table-wrap {
  overflow-x: auto;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  box-shadow: var(--shadow-card);
}

.company-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 22px 24px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: 0;
}

.company-table th {
  width: 190px;
  color: var(--color-navy);
  font-weight: 800;
  background: #f9fbfd;
}

.company-table td {
  color: var(--color-ink);
}

.business-list li {
  position: relative;
  padding-left: 18px;
}

.business-list li + li {
  margin-top: 8px;
}

.business-list li::before {
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--color-gold);
  border-radius: 50%;
}

.contact-section {
  color: var(--color-white);
  background:
    linear-gradient(135deg, rgba(16, 34, 63, 0.98), rgba(47, 111, 159, 0.9)),
    var(--color-navy);
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 38px;
  align-items: center;
}

.contact-inner h2 {
  max-width: 760px;
  color: var(--color-white);
}

.contact-inner p:not(.eyebrow) {
  max-width: 760px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.82);
}

.button-contact {
  min-width: 210px;
  color: var(--color-navy);
  background: var(--color-white);
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.16);
}

.site-footer {
  padding: 34px 0;
  background: #071225;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 20px;
  font-size: 0.9rem;
  font-weight: 700;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.78);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--color-white);
}

.brand-footer {
  color: var(--color-white);
}

@media (max-width: 1040px) {
  .hero-grid,
  .solution-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 48px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .hero-visual {
    min-height: 430px;
    max-width: 560px;
  }

  .service-grid,
  .strength-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .flow-list li:nth-child(3)::after,
  .flow-list li:last-child::after {
    content: none;
  }
}

@media (max-width: 820px) {
  :root {
    --header-height: 70px;
  }

  .container {
    width: min(100% - 32px, 1120px);
  }

  .section {
    padding: 72px 0;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    padding: 18px 16px 24px;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 20px 36px rgba(16, 34, 63, 0.12);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    display: grid;
    gap: 4px;
  }

  .site-nav a {
    width: 100%;
    min-height: 48px;
    padding: 8px 6px;
  }

  .site-nav a::after {
    display: none;
  }

  .menu-toggle {
    display: inline-block;
  }

  .hero {
    min-height: auto;
    padding: 82px 0 72px;
  }

  .hero h1,
  .section-heading h2,
  .solution-copy h2,
  .contact-inner h2 {
    font-size: 2rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .split-layout,
  .contact-inner {
    grid-template-columns: 1fr;
  }

  .text-panel {
    padding-left: 24px;
  }

  .service-grid,
  .strength-grid {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: auto;
  }

  .contact-inner {
    gap: 28px;
  }

  .button-contact {
    width: 100%;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  body {
    line-height: 1.7;
  }

  .brand-name {
    font-size: 1.12rem;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
  }

  .hero-logo-lockup {
    width: 116px;
    min-height: 136px;
  }

  .hero h1 {
    font-size: 1.86rem;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 400px;
  }

  .visual-orbit {
    inset: 42px 12px;
  }

  .visual-card {
    min-width: 160px;
    min-height: 120px;
    padding: 18px;
  }

  .visual-card-main {
    top: 146px;
    left: 44px;
    min-width: 216px;
  }

  .visual-card-ai {
    top: 32px;
    right: 0;
  }

  .visual-card-cloud {
    right: 18px;
    bottom: 40px;
  }

  .node-one {
    left: 30px;
  }

  .node-two {
    right: 24px;
    top: 234px;
  }

  .node-three {
    left: 22px;
  }

  .section-heading-center {
    text-align: left;
  }

  .text-panel-accent {
    padding: 26px;
  }

  .solution-board {
    padding: 20px;
  }

  .flow-list {
    grid-template-columns: 1fr;
  }

  .flow-list li {
    min-height: 108px;
  }

  .flow-list li::after {
    top: auto;
    right: auto;
    bottom: -10px;
    left: 26px;
    width: 2px;
    height: 10px;
  }

  .flow-list li:nth-child(3)::after {
    content: "";
  }

  .flow-list li:last-child::after {
    content: none;
  }

  .company-table {
    min-width: 0;
  }

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

  .company-table th {
    padding: 18px 20px 8px;
    border-bottom: 0;
  }

  .company-table td {
    padding: 0 20px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}