:root {
  --primary-blue: #1d56a5;
  --secondary-blue: #3b6db3;
  --light-blue-bg: #f3f7fc;
  --border-blue: #d6e2f0;
  --footer-bg: #112a4e;
  --text-main: #222222;
  --text-sub: #555555;
  --bg-main: #ffffff;
  --container-width: 1080px;
}

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

body {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.75;
  font-size: 15px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease, background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

a:hover {
  opacity: 0.8;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================
   ヘッダー（上部メニュー）
   ========================================== */
.site-header {
  background-color: var(--bg-main);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: inline-flex;
  text-decoration: none;
  cursor: pointer;
}

.global-nav ul {
  display: flex;
  align-items: center;
  gap: 26px;
}

.global-nav a {
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 2px;
  position: relative;
  white-space: nowrap;
  cursor: pointer;
}

.global-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-blue);
  transition: width 0.2s ease;
}

.global-nav a:hover,
.global-nav a.active {
  color: var(--primary-blue);
  opacity: 1;
}

.global-nav a:hover::after,
.global-nav a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-blue);
  border-radius: 4px;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--primary-blue);
  font-size: 13px;
  font-weight: 600;
  align-items: center;
  gap: 8px;
}

.menu-toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.menu-toggle-bars span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--primary-blue);
  transition: 0.2s ease;
}

/* ==========================================
   メインコンテンツ領域
   ========================================== */
main {
  flex: 1;
  background-color: var(--bg-main);
  padding-bottom: 120px;
}

.page-view {
  animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.page-header {
  padding: 20px 0 28px;
  margin-bottom: 32px;
  border-bottom: 2px solid var(--primary-blue);
}

.page-header h1 {
  font-size: 26px;
  color: var(--primary-blue);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.section-title {
  font-size: 20px;
  color: var(--primary-blue);
  font-weight: 700;
  padding-left: 12px;
  border-left: 4px solid var(--primary-blue);
  margin-bottom: 20px;
  line-height: 1.4;
}

.visual-box {
  background: linear-gradient(135deg, #1d56a5 0%, #3b76c4 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.visual-box::before {
  content: "";
  position: absolute;
  width: 160%;
  height: 160%;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 60%);
  top: -30%;
  left: -30%;
}

.visual-box svg {
  width: 56px;
  height: 56px;
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 1.5;
  fill: none;
  z-index: 1;
}

/* 1. トップページ */
.top-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 420px;
  padding: 40px 0;
  margin-bottom: 40px;
}

.top-hero-visual {
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background-image: url('top_hero.jpg');
  background-size: cover;
  background-position: right center;
  background-repeat: no-repeat;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 40%, black 80%);
  mask-image: linear-gradient(to right, transparent 0%, transparent 40%, black 80%);
}

.top-hero-copy {
  position: relative;
  z-index: 2;
  width: 55%;
  padding: 40px 20px 40px 16px;
}

.top-hero-copy h1 {
  font-size: 26px;
  color: var(--primary-blue);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.45;
}

.top-hero-copy p {
  color: var(--text-main);
  margin-bottom: 10px;
}

.top-lower-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 8px;
}

.top-panel {
  background-color: var(--light-blue-bg);
  border: 1px solid var(--border-blue);
  border-radius: 6px;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.top-panel h2 {
  font-size: 18px;
  color: var(--primary-blue);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-blue);
}

.top-panel p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 16px;
}

.btn-more {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--primary-blue);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 4px;
  cursor: pointer;
}

.btn-more:hover {
  color: #ffffff;
  opacity: 0.9;
}

.topics-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14.5px;
  padding: 8px 0;
}

.topics-date {
  font-weight: 700;
  color: var(--primary-blue);
  white-space: nowrap;
}

/* 2. ジェイシイエルについて */
.about-lead {
  background-color: var(--light-blue-bg);
  border-left: 4px solid var(--primary-blue);
  padding: 24px 28px;
  border-radius: 0 6px 6px 0;
  margin-bottom: 36px;
}

.about-lead p {
  margin-bottom: 12px;
}

.about-lead p:last-child {
  margin-bottom: 0;
}

.about-bottom-layout {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 32px;
  align-items: stretch;
}

.about-visual {
  min-height: 220px;
}

.about-nav-links {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
}

.about-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #ffffff;
  border: 1px solid var(--primary-blue);
  color: var(--primary-blue);
  padding: 18px 24px;
  border-radius: 6px;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.about-nav-btn:hover {
  background-color: var(--primary-blue);
  color: #ffffff;
  opacity: 1;
}

/* 3. ソリューション・プロジェクト事例共通 */
.solution-lead {
  margin-bottom: 28px;
  font-size: 15.5px;
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.solution-item {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 28px;
  background-color: var(--light-blue-bg);
  border: 1px solid var(--border-blue);
  border-radius: 6px;
  padding: 24px;
  align-items: center;
}

.solution-visual {
  height: 150px;
}

.solution-content h2 {
  font-size: 19px;
  color: var(--primary-blue);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-blue);
}

.solution-content p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
}

.solution-content ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px 16px;
}

.solution-content li {
  position: relative;
  padding-left: 16px;
  font-weight: 500;
}

.solution-content li::before {
  content: "■";
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 11px;
  color: var(--primary-blue);
}

/* プロジェクト事例バナー追加 */
.project-banner-wrapper {
  margin-top: 56px;
  text-align: left;
}

.project-banner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 360px;
  background-color: #ffffff;
  border: 1px solid var(--primary-blue);
  color: var(--primary-blue);
  font-size: 18px;
  font-weight: 700;
  padding: 20px 24px;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(29, 86, 165, 0.2);
}

.project-banner:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 86, 165, 0.3);
  background-color: var(--primary-blue);
  color: #ffffff;
  opacity: 1;
}

.project-banner span {
  margin-right: 8px;
}

/* 4. 企業情報 */
.company-block {
  margin-bottom: 44px;
}

.company-block:last-child {
  margin-bottom: 0;
}

.philosophy-box {
  background-color: var(--light-blue-bg);
  padding: 24px 28px;
  border-radius: 6px;
  border: 1px solid var(--border-blue);
}

.philosophy-box p {
  margin-bottom: 12px;
}

.philosophy-box p:last-child {
  margin-bottom: 0;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--border-blue);
}

.company-table th,
.company-table td {
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-blue);
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 220px;
  background-color: var(--light-blue-bg);
  color: var(--primary-blue);
  font-weight: 700;
}

/* 5. 採用情報 */
.recruit-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.recruit-main-card {
  background-color: #ffffff;
  border: 2px solid var(--primary-blue);
  border-radius: 6px;
  padding: 22px 24px;
}

.recruit-main-card h2 {
  font-size: 18px;
  color: var(--primary-blue);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-blue);
}

.recruit-main-card p {
  margin-bottom: 8px;
  font-size: 14.5px;
}

.recruit-meta-dl {
  margin-top: 12px;
  background-color: var(--light-blue-bg);
  padding: 12px 14px;
  border-radius: 4px;
  font-size: 13.5px;
}

.recruit-meta-dl div {
  display: flex;
  gap: 12px;
  margin-bottom: 4px;
}

.recruit-meta-dl div:last-child {
  margin-bottom: 0;
}

.recruit-meta-dl dt {
  font-weight: 700;
  color: var(--primary-blue);
  min-width: 72px;
}

.recruit-notice-box {
  background-color: var(--light-blue-bg);
  border: 1px solid var(--primary-blue);
  border-radius: 6px;
  padding: 20px 24px;
  margin-bottom: 44px;
  text-align: center;
}

.recruit-notice-box p {
  margin-bottom: 8px;
  font-weight: 500;
}

.recruit-notice-box p:last-child {
  margin-bottom: 0;
}

.recruit-notice-box a {
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}

.recruit-sub-header {
  font-size: 17px;
  color: var(--text-sub);
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-blue);
}

.recruit-sub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.recruit-sub-card {
  background-color: #f8fafd;
  border: 1px solid var(--border-blue);
  border-radius: 6px;
  padding: 18px 20px;
  font-size: 14px;
}

.recruit-sub-card h3 {
  font-size: 15.5px;
  color: var(--primary-blue);
  margin-bottom: 8px;
}

.recruit-sub-card ul li {
  margin-bottom: 4px;
  padding-left: 14px;
  position: relative;
}

.recruit-sub-card ul li::before {
  content: "・";
  position: absolute;
  left: 0;
  color: var(--primary-blue);
}

/* 6. 個人情報保護 */
.policy-section {
  margin-bottom: 32px;
}

.policy-section h2 {
  font-size: 18px;
  color: var(--primary-blue);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-blue);
}

.policy-section p,
.policy-section ul {
  font-size: 14.5px;
  margin-bottom: 10px;
}

.policy-section ul {
  padding-left: 20px;
  list-style: disc;
}

/* 7. お問い合わせ */
.contact-lead {
  margin-bottom: 24px;
}

.contact-form {
  max-width: 720px;
  background-color: var(--light-blue-bg);
  border: 1px solid var(--border-blue);
  border-radius: 6px;
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 14.5px;
}

.badge-req {
  background-color: var(--primary-blue);
  color: #ffffff;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 8px;
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #b8cbe0;
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  background-color: #ffffff;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 2px rgba(29, 86, 165, 0.15);
}

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

.form-consent {
  margin: 24px 0;
  font-size: 14px;
}

.btn-submit {
  background-color: var(--primary-blue);
  color: #ffffff;
  border: none;
  padding: 12px 36px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-submit:hover {
  opacity: 0.9;
}

/* ==========================================
   フッター領域（下部メニュー）
   ========================================== */
.site-footer {
  background-color: var(--footer-bg);
  color: #ffffff;
  padding: 36px 0 28px;
  margin-top: 80px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.copyright {
  font-size: 12.5px;
  color: #cbd8ea;
  margin: 0;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center; 
  gap: 16px 24px;
}

.footer-nav a {
  color: #ffffff;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}

.footer-nav a:hover {
  text-decoration: underline;
  opacity: 0.9;
}

/* お問い合わせバナーボタン */
.footer-nav a.footer-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #3b6db3;
  color: #ffffff !important;
  padding: 8px 18px;
  border-radius: 6px; 
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--secondary-blue);
  text-decoration: none;
}

.footer-nav a.footer-contact-btn:hover {
  background-color: #ffffff;
  color: var(--secondary-blue) !important;
  text-decoration: none;
}

/* ==========================================
   レスポンシブ対応
   ========================================== */
@media (max-width: 960px) {
  .menu-toggle {
    display: inline-flex;
  }

  .global-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-main);
    border-top: 1px solid var(--border-blue);
    border-bottom: 2px solid var(--primary-blue);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    padding: 12px 24px;
  }

  .global-nav.open {
    display: block;
  }

  .global-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .global-nav li {
    border-bottom: 1px solid #eef3f9;
  }

  .global-nav li:last-child {
    border-bottom: none;
  }

  .global-nav a {
    display: block;
    padding: 12px 4px;
  }

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

@media (max-width: 768px) {
  .top-lower-grid,
  .about-bottom-layout,
  .solution-item,
  .recruit-main-grid,
  .recruit-sub-grid {
    grid-template-columns: 1fr;
  }

  .top-hero {
    flex-direction: column;
    padding: 0;
    min-height: auto;
  }

  .top-hero-visual {
    position: relative;
    width: 100%;
    height: 240px;
    -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  }

  .top-hero-copy {
    width: 100%;
    margin-top: -30px;
    padding: 0 16px 24px;
  }

  .about-visual {
    min-height: 160px;
  }

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

  .company-table th {
    border-bottom: none;
    padding-bottom: 6px;
  }

  .company-table td {
    padding-top: 8px;
  }

  .footer-inner {
    flex-direction: column;
  }
}