:root {
  --navy: #153c4a;
  --navy-dark: #0d2b35;
  --teal: #2c8c84;
  --teal-soft: #dcefeb;
  --sage: #7fa893;
  --amber: #d79a3a;
  --coral: #d77d6c;
  --ink: #1b2c32;
  --muted: #5b6b70;
  --paper: #fbfaf6;
  --white: #fff;
  --line: #dce4e3;
  --shadow: 0 22px 60px rgba(22, 58, 68, 0.12);
  --radius-lg: 32px;
  --radius-md: 20px;
  --container: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 2000;
  padding: 10px 16px;
  color: var(--white);
  background: var(--navy-dark);
  transform: translateY(-160%);
}

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

.container { width: var(--container); margin-inline: auto; }
.section { padding: clamp(76px, 9vw, 132px) 0; }
.section--white { background: var(--white); }
.section--soft { background: #eff6f4; }
.section--navy { color: var(--white); background: var(--navy-dark); }
.section--compact { padding: 64px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 28px;
  height: 1px;
  content: "";
  background: currentColor;
}

.section--navy .eyebrow { color: #91d6ce; }

h1, h2, h3, h4, p { overflow-wrap: anywhere; }

h1, h2, h3 {
  margin-top: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  line-height: 1.35;
  letter-spacing: 0.025em;
}

h1, h2, .intro-statement { text-wrap: balance; }

h2 { margin-bottom: 22px; font-size: clamp(2rem, 4vw, 3.3rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.72rem); }
p { margin-top: 0; }

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
}

.section--navy .lead { color: #c6d8dc; }

.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 12px 24px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--white);
  background: var(--teal);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(44, 140, 132, 0.24);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button::after { margin-left: 14px; content: "→"; transition: transform 180ms ease; }
.button::before {
  position: absolute;
  inset: 0 auto 0 -45%;
  width: 34%;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.32), transparent);
  transform: skewX(-18deg);
  animation: sheen 5.5s ease-in-out infinite;
}

.button:hover, .button:focus-visible {
  background: #237a73;
  box-shadow: 0 16px 34px rgba(44, 140, 132, 0.32);
  transform: translateY(-2px);
}

.button:hover::after, .button:focus-visible::after { transform: translateX(4px); }
.button:active { transform: translateY(0); }
.button--outline { color: var(--navy); border-color: var(--navy); background: transparent; box-shadow: none; }
.button--outline:hover, .button--outline:focus-visible { color: var(--white); background: var(--navy); }
.button--light { color: var(--navy-dark); background: var(--white); box-shadow: none; }
.button--light:hover, .button--light:focus-visible { color: var(--white); background: var(--teal); }
.text-link { display: inline-flex; gap: 10px; color: var(--teal); font-weight: 800; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.text-link::after { content: "→"; }

@keyframes sheen { 0%, 72% { left: -45%; } 90%, 100% { left: 130%; } }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(21, 60, 74, 0.09);
  background: rgba(251, 250, 246, 0.94);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  gap: 28px;
}

.brand { display: inline-flex; flex: 0 1 340px; align-items: center; text-decoration: none; }
.brand img { width: min(100%, 340px); height: auto; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  position: relative;
  padding: 12px 13px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] {
  color: var(--teal);
  background: rgba(44, 140, 132, 0.08);
  transform: translateY(-1px);
}

.site-nav .nav-cta { margin-left: 8px; padding-inline: 18px; color: var(--white); background: var(--navy); }
.site-nav .nav-cta:hover, .site-nav .nav-cta:focus-visible { color: var(--white); background: var(--teal); }
.menu-button { display: none; width: 48px; height: 48px; padding: 0; border: 0; border-radius: 50%; color: var(--white); background: var(--navy); }
.menu-button span { display: block; width: 20px; height: 2px; margin: 5px auto; background: currentColor; transition: transform 180ms ease, opacity 180ms ease; }

.hero {
  position: relative;
  min-height: min(780px, calc(100svh - 92px));
  display: grid;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
  background: var(--navy-dark);
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background: url("images/hero-corporate-ai.webp") center / cover no-repeat;
}

.hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(90deg, rgba(8, 35, 43, .94) 0%, rgba(8,35,43,.78) 40%, rgba(8,35,43,.15) 75%, rgba(8,35,43,.1) 100%);
}

.hero-content { width: var(--container); margin-inline: auto; padding: 76px 0; color: var(--white); }
.hero-copy { max-width: 710px; }
.hero-kicker { margin-bottom: 14px; color: #a7e0d9; font-weight: 800; letter-spacing: 0.12em; }
.hero h1 { margin-bottom: 24px; font-size: clamp(2.4rem, 5vw, 4.7rem); line-height: 1.24; }
.hero-lead { max-width: 620px; margin-bottom: 0; color: #e2edef; font-size: clamp(1rem, 1.65vw, 1.2rem); }
.hero .button--light { min-width: 180px; }

.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 34px 0 0; padding: 0; list-style: none; }
.hero-badges li { padding: 7px 14px; border: 1px solid rgba(255,255,255,.38); border-radius: 999px; background: rgba(255,255,255,.08); font-size: .86rem; }

.intro-grid, .split-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; align-items: center; gap: clamp(42px, 7vw, 96px); }
.split-grid--reverse .split-media { order: 2; }
.split-media img { width: min(100%, 520px); aspect-ratio: 16 / 10; margin-inline: auto; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.intro-statement { color: var(--navy); font-family: "Yu Mincho", "Noto Serif JP", serif; font-size: clamp(1.8rem, 3.2vw, 3rem); line-height: 1.55; }

.story-section { background: linear-gradient(135deg, #eaf4f1 0%, #f7f2e8 100%); }
.story-grid { display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(48px, 7vw, 96px); align-items: start; }
.story-copy h2 { max-width: 12em; margin-bottom: 24px; }
.story-summary { max-width: 34em; color: #40575d; font-size: 1.05rem; }
.story-points { border-bottom: 1px solid rgba(20, 63, 72, .18); }
.story-point { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 20px; padding: 25px 0; border-top: 1px solid rgba(20, 63, 72, .18); }
.story-number { color: var(--teal); font-family: Georgia, serif; font-size: 1.55rem; line-height: 1.25; }
.story-point h3 { margin-bottom: 8px; font-size: clamp(1.08rem, 1.7vw, 1.3rem); }
.story-point p { margin: 0; color: #40575d; }

.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 48px; }
.business-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 330px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  color: var(--white);
  background: var(--navy);
  box-shadow: var(--shadow);
  text-decoration: none;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.business-card:hover, .business-card:focus-visible { transform: translateY(-6px); box-shadow: 0 28px 66px rgba(22,58,68,.2); }
.business-card-media { height: 220px; overflow: hidden; }
.business-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 450ms ease; }
.business-card:hover img, .business-card:focus-visible img { transform: scale(1.045); }
.business-card-body { display: flex; flex-direction: column; justify-content: center; padding: clamp(24px, 3vw, 42px); }
.business-card-label { margin-bottom: 14px; color: #a7e0d9; font-size: .75rem; font-weight: 900; letter-spacing: .12em; }
.business-card h3 { margin-bottom: 14px; }
.business-card p { color: #dce8ea; font-size: .94rem; }
.business-card-more { margin-top: auto; padding-top: 16px; font-weight: 800; }
.business-card-more::after { margin-left: 10px; content: "→"; }
.business-card--hoplus { background: #576f61; }
.business-card--hearth { background: #6a5367; }
.business-card--ai { background: #1f5162; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 46px; }
.value-item { padding-top: 24px; border-top: 1px solid rgba(255,255,255,.22); }
.value-number { display: block; margin-bottom: 10px; color: #91d6ce; font-family: Georgia, serif; font-size: 2.4rem; }
.value-item h3 { margin-bottom: 10px; }
.value-item p { color: #c6d8dc; }

.company-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 0; overflow: hidden; border-radius: var(--radius-lg); background: var(--navy); box-shadow: var(--shadow); }
.company-strip-copy { padding: clamp(38px, 6vw, 76px); color: var(--white); }
.company-strip-copy p { color: #d6e4e6; }
.company-strip-aside { display: grid; align-content: center; padding: clamp(38px, 6vw, 76px); color: var(--navy); background: var(--teal-soft); }
.company-fact { padding: 18px 0; border-bottom: 1px solid rgba(21,60,74,.16); }
.company-fact:last-child { border-bottom: 0; }
.company-fact small { display: block; margin-bottom: 4px; color: var(--muted); font-weight: 800; letter-spacing: .08em; }

.cta-band { position: relative; overflow: hidden; padding: 80px 0; color: var(--white); background: var(--teal); }
.cta-band::before { position: absolute; inset: -150px -80px auto auto; width: 360px; height: 360px; border: 70px solid rgba(255,255,255,.08); border-radius: 50%; content: ""; }
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 42px; }
.cta-inner h2 { max-width: 700px; margin-bottom: 10px; }
.cta-inner p { max-width: 680px; margin-bottom: 0; color: #e8f7f5; }

.page-hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 510px;
  isolation: isolate;
  overflow: hidden;
  color: var(--white);
  background: var(--navy-dark);
}

.page-hero::before { position: absolute; inset: 0; z-index: -2; content: ""; background-image: var(--hero-image); background-position: center; background-size: cover; }
.page-hero::after { position: absolute; inset: 0; z-index: -1; content: ""; background: linear-gradient(90deg, rgba(10,37,45,.9), rgba(10,37,45,.46) 62%, rgba(10,37,45,.14)); }
.page-hero-inner { width: var(--container); margin-inline: auto; padding: 92px 0 70px; }
.page-hero .eyebrow { color: #9bd9d2; }
.page-hero h1 { max-width: 860px; margin-bottom: 18px; font-size: clamp(2.25rem, 5.5vw, 4.3rem); }
.page-hero p { max-width: 680px; margin-bottom: 0; color: #e1edef; font-size: 1.08rem; }
.hero-hoplus { --hero-image: url("images/business-hoplus.webp"); }
.hero-hearth { --hero-image: url("images/business-hearth.webp"); }
.hero-ai { --hero-image: url("images/business-ai-dx.webp"); }
.hero-company { --hero-image: url("images/hero-corporate-ai.webp"); }

.breadcrumbs { padding: 18px 0; border-bottom: 1px solid var(--line); background: var(--white); font-size: .84rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { margin-right: 8px; color: #91a0a4; content: "/"; }

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; padding: 0; list-style: none; }
.tag-list li { padding: 7px 13px; border-radius: 999px; color: var(--navy); background: var(--teal-soft); font-size: .84rem; font-weight: 800; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.feature-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.feature-icon { display: grid; width: 48px; height: 48px; margin-bottom: 24px; place-items: center; border-radius: 50%; color: var(--white); background: var(--teal); font-family: Georgia, serif; font-size: 1.2rem; }
.feature-card h3 { margin-bottom: 12px; color: var(--navy); }
.feature-card p { margin-bottom: 0; color: var(--muted); }

.content-list { display: grid; gap: 0; margin: 34px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.content-list li { display: grid; grid-template-columns: 170px 1fr; gap: 28px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.content-list strong { color: var(--navy); }

.process { counter-reset: process; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 42px; }
.process-step { position: relative; padding: 30px 24px; border-radius: var(--radius-md); background: var(--white); }
.process-step::before { counter-increment: process; display: block; margin-bottom: 18px; color: var(--teal); content: "0" counter(process); font-family: Georgia, serif; font-size: 2rem; }
.process-step h3 { margin-bottom: 8px; font-size: 1.18rem; }
.process-step p { margin-bottom: 0; color: var(--muted); font-size: .92rem; }

.faq-list { display: grid; gap: 12px; margin-top: 36px; }
.faq-list details { border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.faq-list summary { position: relative; padding: 22px 58px 22px 24px; cursor: pointer; color: var(--navy); font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 50%; right: 24px; content: "+"; transform: translateY(-50%); font-size: 1.5rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { padding: 0 24px 22px; color: var(--muted); }

.company-table { width: 100%; border-collapse: collapse; }
.company-table th, .company-table td { padding: 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.company-table th { width: 190px; color: var(--navy); font-weight: 800; }

.contact-direct { max-width: 1040px; }
.contact-direct .lead { max-width: 760px; }
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 34px; }
.contact-card { padding: 22px; border-radius: 16px; color: var(--navy); background: var(--teal-soft); }
.contact-card strong { display: block; font-size: 1.1rem; }
.contact-card a { color: var(--navy); font-weight: 900; }
.contact-guidance { margin-top: 26px; }
.contact-form-wrap { max-width: 900px; }
.contact-form-wrap .lead { max-width: 720px; }
.form-note { margin: 18px 0 0; color: var(--muted); font-size: .9rem; }
.contact-form { position: relative; display: grid; gap: 25px; margin-top: 30px; padding: clamp(24px, 5vw, 52px); border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); box-shadow: 0 20px 55px rgba(13,43,53,.08); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.form-field { display: grid; gap: 9px; }
.form-field label { color: var(--navy); font-weight: 800; }
.form-field input, .form-field select, .form-field textarea { width: 100%; border: 1px solid #9fb2b6; border-radius: 10px; padding: 13px 14px; color: var(--ink); background: #fff; font: inherit; line-height: 1.5; }
.form-field textarea { min-height: 190px; resize: vertical; }
.form-field input:hover, .form-field select:hover, .form-field textarea:hover { border-color: var(--teal); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--teal); outline: 3px solid rgba(26,126,119,.18); outline-offset: 1px; }
.form-field small { color: var(--muted); }
.required-mark { display: inline-block; margin-left: 5px; color: #8f2e26; font-size: .78rem; font-weight: 900; }
.form-consent { display: flex; gap: 12px; align-items: flex-start; padding: 18px; border-radius: 12px; background: var(--teal-soft); cursor: pointer; }
.form-consent input { flex: 0 0 auto; width: 20px; height: 20px; margin-top: 2px; accent-color: var(--teal); }
.form-consent a { font-weight: 800; }
.form-status { min-height: 1.6em; color: var(--muted); font-size: .92rem; }
.form-status.is-ready { color: #28663d; }
.form-status.is-error, .form-error { color: #8f2e26; font-weight: 700; }
.form-submit { justify-self: start; border: 0; cursor: pointer; }
.form-submit:disabled { cursor: wait; opacity: .55; box-shadow: none; transform: none; }
.form-security-note { margin: -8px 0 0; color: var(--muted); font-size: .84rem; }
.honeypot-field { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }
.completion-panel { max-width: 760px; padding: clamp(28px, 6vw, 58px); border-radius: var(--radius-md); background: var(--white); box-shadow: 0 20px 55px rgba(13,43,53,.08); text-align: center; }
.completion-panel h1 { margin-bottom: 18px; }
.completion-panel .button { margin-top: 22px; }

.policy h2 { margin-top: 60px; font-size: 1.7rem; }
.policy h2:first-child { margin-top: 0; }

.site-footer { color: #d7e4e6; background: #0b2730; }
.footer-main { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; padding: 74px 0 54px; }
.footer-brand img { width: min(100%, 330px); padding: 8px; border-radius: 10px; background: rgba(255,255,255,.94); }
.footer-brand p { max-width: 500px; margin-top: 22px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 30px; align-content: start; }
.footer-links a { padding: 6px 0; color: #d7e4e6; text-decoration: none; }
.footer-links a:hover, .footer-links a:focus-visible { color: #91d6ce; text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.12); color: #a8bcc0; font-size: .8rem; }

.reveal { opacity: 1; transform: none; transition: opacity 650ms ease, transform 650ms ease; }
.reveal.is-pending { opacity: 0; transform: translateY(22px); }
.reveal.is-pending.is-visible { opacity: 1; transform: none; }

:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; }

@media (max-width: 1040px) {
  .brand { flex-basis: 285px; }
  .site-nav a { padding-inline: 9px; font-size: .86rem; }
  .business-card { grid-template-columns: 1fr; }
  .business-card-media { height: 210px; }
}

@media (max-width: 860px) {
  :root { --container: min(100% - 34px, 680px); }
  .header-inner { min-height: 78px; }
  .brand { flex-basis: min(260px, calc(100% - 64px)); }
  .menu-button { display: block; flex: 0 0 48px; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav {
    position: fixed;
    inset: 78px 0 auto;
    display: grid;
    gap: 6px;
    padding: 22px 20px 30px;
    max-height: calc(100svh - 78px);
    overflow-y: auto;
    background: var(--paper);
    box-shadow: 0 25px 45px rgba(13,43,53,.16);
    transform: translateY(-140%);
    visibility: hidden;
    transition: transform 240ms ease, visibility 240ms ease;
  }
  .site-nav.is-open { transform: translateY(0); visibility: visible; }
  .site-nav a { padding: 13px 16px; font-size: 1rem; }
  .site-nav .nav-cta { margin: 8px 0 0; text-align: center; }
  .hero { min-height: 700px; }
  .hero::before { background-position: 62% center; }
  .hero::after { background: linear-gradient(90deg, rgba(8,35,43,.94), rgba(8,35,43,.66)); }
  .hero h1 { font-size: clamp(2.15rem, 10vw, 3.3rem); }
  .intro-grid, .split-grid, .story-grid, .company-strip, .footer-main { grid-template-columns: 1fr; }
  .split-grid--reverse .split-media { order: 0; }
  .business-grid { grid-template-columns: 1fr; }
  .business-card { grid-template-columns: 40% 60%; }
  .business-card-media { height: auto; }
  .value-grid, .feature-grid { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { display: grid; }
  .footer-main { gap: 42px; }
}

@media (max-width: 560px) {
  :root { --container: calc(100% - 30px); }
  .section { padding: 68px 0; }
  .brand img { width: 100%; }
  .hero { min-height: 690px; }
  .hero::before { background-position: 68% center; }
  .hero::after { background: linear-gradient(180deg, rgba(8,35,43,.48) 0%, rgba(8,35,43,.9) 46%, rgba(8,35,43,.97) 100%); }
  .hero-content { display: grid; align-items: end; min-height: 690px; padding: 210px 0 48px; }
  .hero h1 { font-size: clamp(1.82rem, 8.6vw, 2.42rem); line-height: 1.24; letter-spacing: 0; }
  .button-row { display: grid; }
  .button { width: 100%; }
  .business-card { grid-template-columns: 1fr; }
  .business-card-media { height: 220px; }
  .page-hero { min-height: 460px; }
  .page-hero::after { background: linear-gradient(180deg, rgba(10,37,45,.25), rgba(10,37,45,.9)); }
  .page-hero-inner { padding: 150px 0 50px; }
  .page-hero h1 { font-size: clamp(1.75rem, 7.6vw, 2.25rem); }
  .intro-statement { font-size: clamp(1.52rem, 6.2vw, 1.9rem); }
  .content-list li { grid-template-columns: 1fr; gap: 4px; }
  .process { grid-template-columns: 1fr; }
  .gallery { gap: 8px; }
  .company-table, .company-table tbody, .company-table tr, .company-table th, .company-table td { display: block; width: 100%; }
  .company-table th { padding-bottom: 5px; border-bottom: 0; }
  .company-table td { padding-top: 5px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* AI / DX brand redesign */
:root {
  --navy: #0a2442;
  --navy-dark: #061629;
  --blue: #146cff;
  --cyan: #2dd4ff;
  --teal: #18a99f;
  --teal-soft: #dff8f5;
  --sage: #71a99d;
  --amber: #ffc857;
  --coral: #ee8c76;
  --ink: #10243b;
  --muted: #546578;
  --paper: #f4f7fb;
  --white: #fff;
  --line: #d7e2ec;
  --shadow: 0 24px 70px rgba(7, 32, 65, .13);
  --glow: 0 18px 48px rgba(20, 108, 255, .2);
  --radius-lg: 28px;
  --radius-md: 18px;
}

::selection { color: #fff; background: #146cff; }

body {
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 12% 16%, rgba(45, 212, 255, .07), transparent 28%),
    radial-gradient(circle at 88% 44%, rgba(20, 108, 255, .06), transparent 24%);
}

h1, h2, h3 {
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -.025em;
}

h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
.section--white { background: rgba(255, 255, 255, .96); }
.section--soft {
  background-color: #edf6f8;
  background-image: linear-gradient(rgba(20, 108, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 108, 255, .035) 1px, transparent 1px);
  background-size: 42px 42px;
}

.eyebrow { gap: 11px; margin-bottom: 15px; color: var(--blue); font-size: .74rem; letter-spacing: .2em; }
.eyebrow::before { width: 9px; height: 9px; border: 2px solid currentColor; border-radius: 2px; background: transparent; transform: rotate(45deg); }
.lead { color: var(--muted); }

.button { min-height: 56px; border-color: rgba(255, 255, 255, .16); border-radius: 14px; background: linear-gradient(110deg, var(--blue), #087fc7 52%, var(--teal)); box-shadow: 0 14px 34px rgba(20, 108, 255, .26); }
.button:hover, .button:focus-visible { background: linear-gradient(110deg, #075ce4, #0874b9 52%, #118f88); box-shadow: 0 18px 44px rgba(20, 108, 255, .34), 0 0 0 1px rgba(45, 212, 255, .22); }
.button--outline { color: var(--navy); border-color: rgba(10, 36, 66, .55); background: rgba(255, 255, 255, .08); }
.button--outline:hover, .button--outline:focus-visible { background: var(--navy); }
.button--light { color: var(--navy-dark); background: #fff; box-shadow: 0 14px 34px rgba(6, 22, 41, .18); }
.button--light:hover, .button--light:focus-visible { color: var(--navy-dark); background: linear-gradient(110deg, #eaffff, #d8f8ff); }
.text-link { color: var(--blue); }

.site-header { border-bottom-color: rgba(45, 212, 255, .18); background: rgba(248, 251, 255, .9); box-shadow: 0 10px 35px rgba(6, 22, 41, .07); backdrop-filter: blur(20px) saturate(145%); }
.header-inner { min-height: 96px; }
.brand { flex-basis: 365px; }
.brand img { width: min(100%, 365px); }
.site-nav a { border: 1px solid transparent; border-radius: 10px; }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] { color: var(--blue); border-color: rgba(20, 108, 255, .13); background: rgba(20, 108, 255, .06); }
.site-nav .nav-cta { color: #fff; border-color: transparent; background: linear-gradient(110deg, #146cff, #0f91be 58%, #18a99f); box-shadow: 0 10px 28px rgba(20, 108, 255, .24); }
.site-nav .nav-cta:hover, .site-nav .nav-cta:focus-visible { background: linear-gradient(110deg, #075ce4, #118f88); }
.menu-button { background: linear-gradient(135deg, var(--navy), #0d4d71); box-shadow: 0 8px 24px rgba(6, 22, 41, .22); }

.hero { min-height: min(790px, calc(100svh - 96px)); background: var(--navy-dark); }
.hero::before { background-image: url("images/hero-corporate-ai.webp"); background-position: center center; }
.hero::after {
  background-image:
    linear-gradient(90deg, rgba(4, 17, 34, .93) 0%, rgba(5, 27, 52, .79) 39%, rgba(5, 27, 52, .26) 68%, rgba(5, 27, 52, .08) 100%),
    linear-gradient(rgba(45, 212, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 212, 255, .055) 1px, transparent 1px);
  background-size: auto, 54px 54px, 54px 54px;
}
.hero-content { padding-block: 82px; }
.hero-copy { max-width: 690px; padding-left: clamp(18px, 2.5vw, 34px); border-left: 2px solid rgba(45, 212, 255, .72); }
.hero-kicker { display: flex; align-items: center; gap: 10px; color: #77e8ff; font-size: .78rem; }
.hero-kicker::before { width: 8px; height: 8px; border-radius: 50%; content: ""; background: var(--cyan); box-shadow: 0 0 0 6px rgba(45, 212, 255, .12), 0 0 24px var(--cyan); animation: data-pulse 2.6s ease-in-out infinite; }
.hero h1 { max-width: 9.8em; margin-bottom: 26px; font-size: clamp(2.45rem, 5vw, 4.55rem); line-height: 1.2; letter-spacing: -.045em; text-shadow: 0 3px 24px rgba(2, 14, 28, .32); }
.hero-title-mobile { display: none; }
.hero-lead { color: #dbeaf5; }
.hero-badges li { border-color: rgba(119, 232, 255, .34); border-radius: 8px; background: rgba(8, 47, 78, .54); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04); backdrop-filter: blur(10px); }
@keyframes data-pulse { 0%, 100% { box-shadow: 0 0 0 4px rgba(45, 212, 255, .1), 0 0 14px rgba(45, 212, 255, .55); } 50% { box-shadow: 0 0 0 9px rgba(45, 212, 255, .02), 0 0 30px rgba(45, 212, 255, .9); } }

.intro-statement { color: var(--navy); font-family: "Noto Sans JP", "Yu Gothic", sans-serif; font-weight: 800; letter-spacing: -.03em; }
.story-section { background: linear-gradient(135deg, #eaf8f8 0%, #eef3ff 56%, #fff8e9 100%); }
.story-number { color: var(--blue); font-family: "Noto Sans JP", sans-serif; font-weight: 800; }

.business-card { border: 1px solid rgba(45, 212, 255, .18); border-radius: 24px; background: linear-gradient(150deg, #0b2848, #07182e); box-shadow: 0 22px 55px rgba(6, 22, 41, .16); }
.business-card::after { position: absolute; inset: 0; border: 1px solid transparent; border-radius: inherit; pointer-events: none; content: ""; background: linear-gradient(120deg, rgba(45, 212, 255, .34), transparent 25%, transparent 78%, rgba(255, 200, 87, .22)) border-box; -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.business-card:hover, .business-card:focus-visible { border-color: rgba(45, 212, 255, .42); box-shadow: 0 30px 78px rgba(9, 58, 113, .24), 0 0 0 1px rgba(45, 212, 255, .08); }
.business-card-media { position: relative; }
.business-card-media::after { position: absolute; inset: auto 0 0; height: 45%; content: ""; background: linear-gradient(transparent, rgba(6, 22, 41, .64)); }
.business-card-media img { filter: saturate(.92) contrast(1.03); }
.business-card-label { color: #71e7ff; }
.business-card--hoplus { background: linear-gradient(150deg, #123c42, #09232d); }
.business-card--hearth { background: linear-gradient(150deg, #26365d, #161c38); }
.business-card--ai { background: linear-gradient(150deg, #0a4564, #071b34); }

.section--navy { position: relative; overflow: hidden; background-color: var(--navy-dark); background-image: radial-gradient(circle at 86% 15%, rgba(45, 212, 255, .16), transparent 26%), radial-gradient(circle at 12% 86%, rgba(20, 108, 255, .2), transparent 28%), linear-gradient(rgba(45, 212, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .045) 1px, transparent 1px); background-size: auto, auto, 48px 48px, 48px 48px; }
.section--navy .eyebrow { color: #75e6fa; }
.section--navy .lead, .value-item p { color: #bfd0df; }
.value-item { border-top-color: rgba(45, 212, 255, .38); }
.value-number { color: var(--cyan); font-family: "Noto Sans JP", sans-serif; font-weight: 800; }

.company-strip { border: 1px solid rgba(45, 212, 255, .2); border-radius: 24px; background: linear-gradient(145deg, #071b33, #0a3453); box-shadow: var(--glow); }
.company-strip-copy { background-image: linear-gradient(rgba(45, 212, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .04) 1px, transparent 1px); background-size: 40px 40px; }
.company-strip-aside { color: var(--navy); background: linear-gradient(145deg, #e2fbfa, #eaf2ff); }

.cta-band { background-color: #08243d; background-image: linear-gradient(110deg, #07182f 0%, #0b3f6d 48%, #087d83 100%); }
.cta-band::before { border-color: rgba(45, 212, 255, .11); box-shadow: 0 0 90px rgba(45, 212, 255, .18); }
.cta-band::after { position: absolute; inset: 0; pointer-events: none; content: ""; background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px); background-size: 52px 52px; }
.cta-inner { z-index: 1; }

.page-hero { background: var(--navy-dark); }
.page-hero::after { background-image: linear-gradient(90deg, rgba(4, 18, 35, .93), rgba(6, 31, 56, .64) 62%, rgba(6, 31, 56, .2)), linear-gradient(rgba(45, 212, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .05) 1px, transparent 1px); background-size: auto, 48px 48px, 48px 48px; }
.page-hero .eyebrow { color: #70e6ff; }
.page-hero h1 { letter-spacing: -.04em; }
.hero-company { --hero-image: url("images/hero-corporate-ai.webp"); }
.hero-ai::after { background-image: linear-gradient(90deg, rgba(4, 18, 35, .94), rgba(6, 41, 72, .58) 63%, rgba(6, 31, 56, .16)), linear-gradient(rgba(45, 212, 255, .055) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .055) 1px, transparent 1px); }

.breadcrumbs { border-bottom-color: #d9e6ef; background: rgba(255, 255, 255, .94); }
.tag-list li { color: #0a4267; background: linear-gradient(110deg, #dff8f5, #e7f1ff); }
.feature-card, .process-step, .faq-list details { border-color: #d8e6ef; border-radius: 16px; box-shadow: 0 14px 40px rgba(7, 35, 66, .07); }
.feature-card { position: relative; overflow: hidden; }
.feature-card::before { position: absolute; inset: 0 auto auto; width: 100%; height: 3px; content: ""; background: linear-gradient(90deg, var(--blue), var(--cyan), var(--teal)); }
.feature-icon { border-radius: 13px; background: linear-gradient(135deg, var(--blue), var(--teal)); box-shadow: 0 10px 25px rgba(20, 108, 255, .2); }
.feature-card h3, .content-list strong { color: var(--navy); }
.process-step::before { color: var(--blue); font-family: "Noto Sans JP", sans-serif; font-weight: 800; }

.contact-card { border: 1px solid rgba(20, 108, 255, .1); border-radius: 14px; background: linear-gradient(135deg, #e6faf8, #edf3ff); }
.contact-form { border-color: #d6e5ef; border-radius: 20px; background: rgba(255, 255, 255, .96); box-shadow: 0 22px 65px rgba(7, 35, 66, .11); }
.form-field input, .form-field select, .form-field textarea { border-color: #aabccc; border-radius: 9px; background: #fbfdff; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--blue); outline-color: rgba(20, 108, 255, .17); box-shadow: 0 0 0 1px rgba(20, 108, 255, .08); }
.form-consent { background: linear-gradient(115deg, #e5faf8, #edf3ff); }
.form-consent input { accent-color: var(--blue); }

.site-footer { position: relative; overflow: hidden; color: #d7e6f2; background-color: #041322; background-image: radial-gradient(circle at 78% 15%, rgba(45, 212, 255, .1), transparent 26%), linear-gradient(rgba(45, 212, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .035) 1px, transparent 1px); background-size: auto, 46px 46px, 46px 46px; }
.footer-brand img { width: min(100%, 350px); padding: 10px 12px; border: 1px solid rgba(45, 212, 255, .16); border-radius: 12px; background: rgba(255, 255, 255, .96); }
.footer-links a { color: #d7e6f2; }
.footer-links a:hover, .footer-links a:focus-visible { color: #70e6ff; }
.footer-bottom { border-top-color: rgba(45, 212, 255, .15); color: #8fa8ba; }
:focus-visible { outline-color: var(--cyan); }

@media (max-width: 1040px) {
  .brand { flex-basis: 310px; }
  .brand img { width: min(100%, 310px); }
}

@media (max-width: 860px) {
  .header-inner { min-height: 82px; }
  .brand { flex-basis: min(285px, calc(100% - 64px)); }
  .brand img { width: 100%; }
  .site-nav { inset: 82px 0 auto; background: rgba(247, 251, 255, .98); box-shadow: 0 28px 52px rgba(6, 22, 41, .18); backdrop-filter: blur(18px); }
  .hero { min-height: 720px; }
  .hero-copy { max-width: 625px; }
}

@media (max-width: 560px) {
  .brand { flex-basis: min(272px, calc(100% - 62px)); }
  .hero { min-height: 560px; }
  .hero-company { --hero-image: url("images/hero-corporate-ai-mobile.webp"); }
  .hero::before { background-color: var(--navy-dark); background-image: url("images/hero-corporate-ai-mobile.webp"); background-position: center bottom; background-size: clamp(620px, 175vw, 760px) auto; background-repeat: no-repeat; }
  .hero::after { background-image: linear-gradient(180deg, rgba(4, 18, 35, .74) 0%, rgba(4, 23, 43, .58) 52%, rgba(4, 23, 43, .42) 100%), linear-gradient(rgba(45, 212, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .045) 1px, transparent 1px); background-size: auto, 42px 42px, 42px 42px; }
  .hero-content { position: relative; z-index: 1; align-items: center; min-height: 560px; padding: 34px 0 30px; }
  .hero-copy { display: flex; flex-direction: column; padding-left: 14px; }
  .hero h1 { order: -2; max-width: 100%; margin: 0 0 14px; font-size: clamp(1.8rem, 8vw, 2.1rem); line-height: 1.17; letter-spacing: -.045em; text-shadow: 0 3px 20px rgba(2, 14, 28, .96); }
  .hero-title-desktop { display: none; }
  .hero-title-mobile { display: block; }
  .hero-kicker { order: -1; margin-bottom: 14px; font-size: .68rem; letter-spacing: .08em; }
  .hero-lead { font-size: .9rem; line-height: 1.55; text-shadow: 0 2px 14px rgba(2, 14, 28, .94); }
  .hero .button-row { gap: 10px; margin-top: 20px; }
  .hero .button { min-height: 50px; }
  .hero-badges { display: none; }
  .page-hero::after { background-image: linear-gradient(180deg, rgba(4, 18, 35, .42), rgba(4, 18, 35, .9)), linear-gradient(rgba(45, 212, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(45, 212, 255, .04) 1px, transparent 1px); background-size: auto, 42px 42px, 42px 42px; }
  .footer-brand img { width: min(100%, 310px); }
}