/* =========================================
   Variables
   ========================================= */
:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-dark: #0b1f3a;
  --color-dark-2: #122a4d;
  --color-text: #202a37;
  --color-muted: #64707d;
  --color-border: #e1e5ea;
  --color-primary: #0b5ed7;
  --color-primary-dark: #0947ad;
  --font-jp: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(11, 31, 58, 0.08);
  --container: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
table { border-collapse: collapse; width: 100%; }
.inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.inner--narrow { max-width: 820px; }

.sec-eyebrow {
  font-family: var(--font-en);
  letter-spacing: 0.16em;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 8px;
  text-align: center;
}
.sec-title {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  text-align: center;
  margin: 0 0 40px;
  letter-spacing: 0.01em;
}
.sec-note {
  text-align: center;
  color: var(--color-muted);
  font-size: 13px;
  margin-top: -24px;
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 15px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: var(--color-dark);
}
.btn-outline:hover { background: var(--color-dark); color: #fff; transform: translateY(-2px); }
.btn-white {
  background: #fff;
  color: var(--color-dark);
}
.btn-white:hover { background: transparent; color: #fff; border-color: #fff; transform: translateY(-2px); }

/* =========================================
   Header
   ========================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.site-header .inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 76px;
}
.logo-text {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--color-dark);
}
.site-nav { flex: 1; }
.nav-list, .footer-nav-list {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}
.nav-list a {
  font-size: 14px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}
.nav-list a:hover { border-color: var(--color-primary); }
.header-tel { text-align: right; }
.header-tel .tel-label { display: block; font-size: 11px; color: var(--color-muted); }
.header-tel .tel-number {
  display: block;
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-dark);
}

/* =========================================
   Hero
   ========================================= */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 31, 58, 0.90) 0%, rgba(11, 31, 58, 0.60) 55%, rgba(11, 31, 58, 0.30) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-en);
  letter-spacing: 0.2em;
  color: #7fb2ff;
  font-weight: 700;
  margin-bottom: 12px;
}
.hero-title {
  font-size: clamp(28px, 4.6vw, 48px);
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 18px;
  max-width: 640px;
}
.hero-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 0 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-actions .btn-outline { color: #fff; }
.hero-actions .btn-outline:hover { background: #fff; color: var(--color-dark); }

/* =========================================
   About
   ========================================= */
.about { padding: 88px 0; background: var(--color-surface); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.about-lead { font-size: 15px; color: var(--color-muted); margin: 0 0 20px; }
.about-points { display: flex; flex-direction: column; gap: 10px; }
.about-points li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
}
.about-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 2px;
}
.about-media {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 12px;
  height: 380px;
}
.about-media-main { grid-column: 1; grid-row: 1 / 3; border-radius: var(--radius); overflow: hidden; }
.about-media-sub { border-radius: var(--radius); overflow: hidden; }
.about-media-main img, .about-media-sub img { width: 100%; height: 100%; object-fit: cover; }

/* =========================================
   Strengths / Business (共通カードグリッド)
   ========================================= */
.strengths { padding: 88px 0; }
.business { padding: 88px 0; background: var(--color-surface); }
.strengths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.strength-card, .business-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
}
.business-card { background: var(--color-bg); }
.strength-icon, .business-icon { font-size: 36px; display: block; margin-bottom: 16px; }
.strength-card h3, .business-card h3 { font-size: 16px; margin: 0 0 10px; }
.strength-card p, .business-card p { font-size: 13.5px; color: var(--color-muted); margin: 0; }

/* =========================================
   Message（代表挨拶）
   ========================================= */
.message { padding: 88px 0; }
.message-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}
.message-media { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 3/4; }
.message-media > img { width: 100%; height: 100%; object-fit: cover; }
.message-media-accent {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 46%;
  aspect-ratio: 4/3;
  border-radius: var(--radius);
  overflow: hidden;
  border: 5px solid var(--color-surface);
  box-shadow: var(--shadow);
}
.message-media-accent img { width: 100%; height: 100%; object-fit: cover; }
.message-lead { font-size: 18px; font-weight: 700; margin: 0 0 18px; }
.message-body { font-size: 14px; color: var(--color-muted); margin: 0 0 20px; }
.message-name { font-size: 14px; font-weight: 700; text-align: right; margin: 0; }

/* =========================================
   Cases / 導入事例
   ========================================= */
.cases { padding: 88px 0; background: var(--color-surface); }
.cases-archive { padding-top: 40px; }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.case-card {
  display: block;
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}
.case-card:hover { transform: translateY(-4px); }
.case-thumb { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; }
.badge-type {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}
.badge-type--static {
  position: static;
  display: inline-block;
  margin-bottom: 12px;
}
.case-body { padding: 16px 18px 20px; }
.case-name { font-size: 15px; margin: 0 0 10px; line-height: 1.5; }
.case-meta { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--color-muted); }
.cases-more { text-align: center; margin-top: 44px; }
.cases-empty { text-align: center; color: var(--color-muted); }

/* =========================================
   News / お知らせ
   ========================================= */
.news { padding: 88px 0; }
.news-list { max-width: 820px; margin: 0 auto; }
.news-list-item { border-bottom: 1px solid var(--color-border); }
.news-list-item:first-child { border-top: 1px solid var(--color-border); }
.news-list-item a {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 18px 8px;
  align-items: baseline;
}
.news-list-item a:hover .news-list-title { color: var(--color-primary); }
.news-list-date { font-family: var(--font-en); font-size: 13px; color: var(--color-muted); }
.news-list-title { font-size: 14.5px; transition: color 0.15s ease; }
.news-empty { text-align: center; color: var(--color-muted); }
.news-more { text-align: center; margin-top: 40px; }

/* =========================================
   Company info / access
   ========================================= */
.company-info { padding: 88px 0; background: var(--color-surface); }
.company-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
.company-info-table table { font-size: 14px; margin-bottom: 24px; }
.company-info-table th, .company-info-table td, .company-table th, .company-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
}
.company-info-table th, .company-table th {
  width: 140px;
  color: var(--color-muted);
  font-weight: 500;
}
.company-info-media img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius); }

/* =========================================
   Recruit CTA
   ========================================= */
.recruit-cta { position: relative; padding: clamp(4rem, 9vw, 7rem) 0; overflow: hidden; color: #fff; }
.recruit-cta-media { position: absolute; inset: 0; }
.recruit-cta-media img { width: 100%; height: 100%; object-fit: cover; }
.recruit-cta-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(11,31,58,0.92) 0%, rgba(11,94,215,0.75) 100%); }
.recruit-cta-content { position: relative; z-index: 2; text-align: center; }
.cta-title { font-size: clamp(22px, 3.6vw, 32px); font-weight: 800; margin: 0 0 14px; }
.cta-text { font-size: 14.5px; color: rgba(255,255,255,0.85); margin: 0 0 28px; }

/* =========================================
   Contact
   ========================================= */
.contact { padding: 88px 0; }
.contact-form { max-width: 680px; margin: 0 auto; }
.form-row-group { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 14px; font-weight: 700; margin-bottom: 8px; }
.form-row .req { color: var(--color-primary); font-size: 11px; font-weight: 700; margin-left: 6px; }
.form-row input, .form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: var(--font-jp);
  font-size: 14px;
  background: var(--color-surface);
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-row--hidden { position: absolute; left: -9999px; }
.btn-submit { display: block; width: 100%; border: none; }
.form-status { text-align: center; margin-top: 16px; font-size: 14px; font-weight: 700; }
.form-status.is-success { color: #1b8a4a; }
.form-status.is-error { color: #d9362f; }

/* =========================================
   Footer
   ========================================= */
.site-footer { background: var(--color-dark); color: rgba(255, 255, 255, 0.8); padding: 56px 0 28px; }
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 20px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 13px; margin: 8px 0 0; }
.footer-nav-list a { font-size: 13px; }
.copyright { font-size: 12px; margin: 0 0 6px; }
.demo-note { font-size: 11.5px; color: rgba(255, 255, 255, 0.45); margin: 0; }
.demo-note a { text-decoration: underline; }

/* =========================================
   Page header / static pages / blog
   ========================================= */
.page-header { padding: 64px 0 16px; text-align: center; }
.static-page { padding: 16px 0 88px; }
.static-page h2 { font-size: 19px; margin: 40px 0 12px; }
.static-page ul { padding-left: 1.2em; list-style: disc; }
.static-page ul li { margin-bottom: 6px; }
.note-mini { font-size: 12px; color: var(--color-muted); }

.blog-list { padding: 16px 0 88px; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.blog-card { background: var(--color-surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.blog-thumb { aspect-ratio: 16/9; overflow: hidden; }
.blog-thumb img { width: 100%; height: 100%; object-fit: cover; }
.blog-body { padding: 16px 18px 20px; }
.blog-date { font-size: 12px; color: var(--color-muted); margin: 0 0 8px; }
.blog-body h2 { font-size: 15px; margin: 0 0 8px; }
.blog-body p { font-size: 13px; color: var(--color-muted); margin: 0; }
.pagination { text-align: center; margin-top: 40px; }

.single-post, .single-page { padding: 40px 0 88px; }
.single-title { font-size: 26px; margin: 0 0 8px; }
.single-date { color: var(--color-muted); font-size: 13px; margin: 0 0 8px; }
.single-thumb { margin: 24px 0 28px; border-radius: var(--radius); overflow: hidden; }
.single-content { font-size: 15px; }
.single-content img { border-radius: var(--radius); }
.single-back { margin-top: 40px; font-size: 14px; }

/* =========================================
   Case single
   ========================================= */
.case-single { padding: 48px 0 88px; }
.case-single-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: start;
}
.case-media { position: relative; border-radius: var(--radius); overflow: hidden; }
.case-title { font-size: 24px; margin: 0 0 20px; }
.case-spec-table { margin-bottom: 24px; font-size: 14px; }
.case-spec-table th, .case-spec-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
.case-spec-table th { width: 120px; color: var(--color-muted); font-weight: 500; }
.case-content { font-size: 14px; color: var(--color-muted); margin-bottom: 28px; }
.case-back { margin-top: 40px; font-size: 14px; }

/* =========================================
   Recruit page
   ========================================= */
.recruit-list { display: flex; flex-direction: column; gap: 16px; margin: 20px 0 32px; }
.recruit-item {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
}
.recruit-item h3 { font-size: 16px; margin: 0 0 8px; }
.recruit-item p { font-size: 13.5px; color: var(--color-muted); margin: 0; }
.recruit-type {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  padding: 2px 10px;
  margin-left: 8px;
  vertical-align: middle;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 960px) {
  .strengths-grid { grid-template-columns: repeat(2, 1fr); }
  .business-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .company-info-grid, .about-grid { grid-template-columns: 1fr; }
  .case-single-grid { grid-template-columns: 1fr; }
  .message-grid { grid-template-columns: 1fr; }
  .message-media { max-width: 260px; margin: 0 auto; }
}
@media (max-width: 720px) {
  .site-nav, .header-tel { display: none; }
  .nav-toggle { display: flex; }
  .site-header.is-open .site-nav {
    display: block;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    max-height: calc(100vh - 76px);
    overflow-y: auto;
  }
  .site-header.is-open .nav-list { flex-direction: column; gap: 4px; }
  .strengths-grid, .business-grid, .cases-grid, .blog-grid { grid-template-columns: 1fr; }
  .form-row-group { grid-template-columns: 1fr; }
  .hero { min-height: 460px; text-align: left; }
  .about-media { height: 280px; }
  .news-list-item a { grid-template-columns: 1fr; gap: 4px; }
}