/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
@font-face {
font-family: "Noto Sans JP";
src: url("NotoSans-Regular-2.ttf") format("truetype");
}
@font-face {
font-family: "KINGHWA";
src: url("KINGHWA.TTF") format("truetype");
font-weight: normal;
font-style: normal;
font-display: swap;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Meiryo', sans-serif;
  color: #000;
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ===== Layout container ===== */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(10px);
  padding-bottom: 10px;
  box-shadow: 0 8px 12px -6px rgba(0, 0, 0, 0.3);
}
.header-top { background: #fff; }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 20px;
  padding-top:15px;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 62px;
  
  gap: 32px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  position: relative;
  flex-shrink: 0;
}
.brand-mark img { width: 100%; height: 100%; }
.brand-text { line-height: 1.2; }
.brand-jp { font-size: 18px; font-weight: 700; color: #004898; letter-spacing: 0.02em; }
.brand-en { font-size: 9px; font-weight: 500; color: #5a87b8; letter-spacing: 0.18em; text-transform: uppercase; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 60px;
  flex: 1;
  justify-content: flex-end;
  margin-top:20px;
}
.main-nav a {
  font-size: 16px;
  font-weight: 700;
  color: #000;
  position: relative;
  padding: 6px 0;
  transition: color .25s;
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: #004898;
  transition: width .25s;
}
.main-nav a:hover { color: #004898; }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: #004898; }
.main-nav a.active::after { width: 100%; }

.header-utils { display: flex; align-items: center; gap: 20px; flex-shrink: 0; }
.lang-switch { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.lang-switch a { color: #999; font-weight: 500; transition: color .2s; }
.lang-switch a.active { color: #000000; font-weight: 700; }
.lang-switch span { color: #ddd; }
.search-btn {
  background: none; border: none; cursor: pointer;
  color: #000000; font-size: 14px;
  display: flex; align-items: center; gap: 4px;
  padding: 6px 10px; border-radius: 4px;
  transition: background .2s;
}
.search-btn:hover { background: #f0f4f8; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: #004898;
  transition: .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Gradient accent bar */
.accent-bar {
  height: 4px;
  background: linear-gradient(90deg, #004898 0%, #1565c0 50%, #42a5f5 100%);
}

/* ===== Hero (Carousel) ===== */
.hero {
  width: 100%;
  height: 560px;
  overflow: hidden;
  position: relative;
}
.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}
.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.hero-slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
/* arrows */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.35);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: background 0.3s;
}
.hero-arrow:hover { background: rgba(0,0,0,0.6); }
.hero-arrow svg { width: 24px; height: 24px; }
.hero-arrow--prev { left: 24px; }
.hero-arrow--next { right: 24px; }
/* dots */
.hero-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}
.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
  padding: 0;
}
.hero-dot.active {
  background: #fff;
  transform: scale(1.2);
}

/* ===== Features bar ===== */
.features {
  padding: 64px 0;
  background: #fff;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.feature-item {
  text-align: center;
  padding: 0 32px;
  position: relative;
}
.feature-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 20%;
  width: 1px; height: 60%;
  background: #e0e0e0;
}
.feature-icon {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  color: #004898;
}
.feature-icon svg { width: 100%; height: 100%; stroke: currentColor; fill: none; stroke-width: 1.5; }
.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: #333;
  margin-bottom: 8px;
}
.feature-sub {
  font-size: 16px;
  color: #333;
  line-height: 1.7;
}

/* ===== Section title ===== */
.section-title {
  font-size: 40px;
  font-weight: 700;
  color: #222;
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  display: block;
  width: 76px;
  height: 3px;
  background: #004898;
  margin-top: 12px;
}
.section-title.center { text-align: center; }
.section-title.center::after { margin-left: auto; margin-right: auto; }
.section-en {
  font-size: 13px;
  color: #999;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-top: 4px;
}

/* ===== Strengths section ===== */
.strengths {
  padding: 80px 0;
  background: #f5f7fa;
}
.strengths-header { margin-bottom: 48px; }
.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}
.strength-card {
  background: #fff;
  border-radius: 8px;
  padding: 40px 25px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform .3s, box-shadow .3s;
  display: flex;
  flex-direction: column;
}
.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.12);
}
.strength-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: #e8eef4;
  margin:0 auto 24px;
  color: #004898;
}
.strength-icon svg { width: 36px; height: 36px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.strength-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: #000;
  margin-bottom: 16px;
  line-height: 1.5;
  text-align: center;
}
.strength-card p {
  font-size: 18px;
  color: #000;
  line-height: 1.8;
  flex: 1;
  margin-bottom: 20px;
}
.strength-link {
  margin:0 auto;
  transition: gap .2s;
}
.strength-link:hover { gap: 8px; }

.cta-center {
  text-align: center;
}
.btn-outline {
  display: inline-block;
  padding: 14px 40px;
  border: 1.5px solid #004898;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 500;
  color: #004898;
  background: transparent;
  transition: all .3s;
}
.btn-outline:hover {
  background: #004898;
  color: #fff;
}

/* ===== Business section ===== */
.business {
  padding: 80px 0;
  background: #fff;
}
.business-header { margin-bottom: 48px; }
.business-row {
  display: flex;
  align-items: stretch;
  margin-bottom: 24px;
  gap: 24px;
}
.business-label {
  flex-shrink: 0;
  width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 16px;
  font-weight: 700;
  color: #004898;
  letter-spacing: 0.1em;
  background: #eaf5fe;
  border-radius: 4px;
  padding: 16px 8px;
}
.business-cards {
  display: grid;
  gap: 16px;
  flex: 1;
}
.business-cards.row-5 { grid-template-columns: repeat(5, 1fr); }
.business-cards.row-4 { grid-template-columns: repeat(4, 1fr); }
.biz-card {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  transition: transform .3s, box-shadow .3s;
  border:1px solid #ccc;
  background: #fff;
}
.biz-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.biz-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.biz-card:hover img { transform: scale(1.06); }
.biz-card-overlay {
  position: absolute;
  padding: 6px 0;
  background: url(black-b-bg.png) repeat;
  bottom:0;
  width:100%;
  text-align: center;
}
.biz-card-overlay span {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

/* ===== Split section (Sustainability + News) ===== */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 305px;
}
.sustainability-col {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0 20px 20px 0;
}
.sustainability-bg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;

}
.sustainability-overlay {
  position: absolute;
  inset: 0;
}
.sustainability-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 20px;
  max-width: 480px;
}
.sustainability-flex{
  display: flex;
  gap:50px;
  justify-content: center;
  align-items: center;
}
.sus-icon {
  width: 80px; height: 80px;
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
}
.sus-txt{padding-left:50px;border-left:1px #fff solid;}
.sustainability-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.sustainability-content p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 8px;
  opacity: 0.95;
}
.btn-ghost-light {
  display: inline-block;
  padding: 12px 36px;
  border: 1.5px solid rgba(255,255,255,0.8);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(4px);
  transition: all .3s;
  margin-top:50px;
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,0.25);
  border-color: #fff;
}

.news-col {
  background: #fff;
  padding: 0 48px 20px;
  display: flex;
  flex-direction: column;
}
.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}
.news-header h2 {
  font-size: 40px;
  font-weight: 700;
  color: #000;
  position: relative;
  padding-bottom: 12px;
}
.news-header h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 76px; height: 3px;
  background: #004898;
}
.news-list-link {
  font-size: 13px;
  font-weight: 500;
  color: #004898;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .2s;
}
.news-list-link:hover { gap: 8px; }
.news-list { flex: 1; }
.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid #eee;
  transition: background .2s;
}
.news-item:hover { background: #f8f9fa; }
.news-date {
  font-size: 18px;
  color: #666;
  font-weight: 500;
  flex-shrink: 0;
  white-space: nowrap;
}
.news-tag {
  font-size: 16px;
  color: #888;
  background: #f0f0f0;
  padding: 4px 12px;
  border-radius: 20px;
  flex-shrink: 0;
  white-space: nowrap;
}
.news-title {
  font-size: 22px;
  color: #333;
  font-weight: 700;
  transition: color .2s;
}
.news-item:hover .news-title { color: #004898; }

/* ===== Footer ===== */
.site-footer {
  background: #004898;
  color: #fff;
}
.footer-main {
  padding: 56px 0 40px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
}
.footer-brand .brand-mark {
  
  margin-bottom: 16px;
}
.footer-brand{margin-right:80px;}
.footer-brand .brand-mark img{width:auto;}
.footer-brand .brand-jp { color: #fff; font-size: 20px; }
.footer-brand .brand-en { color: rgba(255,255,255,0.6); }
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: 14px;
  color: #fff;
  transition: color .2s;
  font-weight: bold;
}
.footer-col ul li a:hover { color: #fff; }
.footer-contact dl { display: grid; gap: 10px; }
.footer-contact dt {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
}
.footer-contact dd {
  font-size: 14px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 4px;
}
.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;font-weight: bold;font-size: 14px;
}
.legal-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color .2s;
}
.legal-links a:hover { color: #fff; }
.legal-links span { color: rgba(255,255,255,0.2); font-size: 14px; }
.copyright {
  font-size: 14px;
  color: #fff;
  font-weight: bold;
}

/* ===== Page Hero (下層ページ用バナー) ===== */
.page-hero {
  position: relative;
  height: 360px;
  overflow: hidden;
}
.page-hero img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10,42,94,0.45) 0%, rgba(10,42,94,0.1) 60%, transparent 100%);
}
.page-hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.page-hero-title {
  font-size: 42px;
  font-weight: 400;
  color: #fff;
}

/* ===== Page Tabs (ページ内ナビ) ===== */
.page-tabs {
  background: #fff;
  box-shadow: 0 6px 10px -6px rgba(0, 0, 0, 0.3);
  height: 64px;
  position: relative;
}
.page-tabs-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  height: 64px;
}
.page-tabs a {
  position: relative;
  font-size: 18px;
  font-weight: 500;
  color: #000;
  padding: 20px 0;
  transition: color .25s;
  margin-bottom:5px;
}
.page-tabs a::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 0; height: 2px;
  background: #004898;
  transition: width .25s;
}
.page-tabs a.active,.page-tabs a:hover {
  color: #004898;
  font-weight: 700;
}
.page-tabs a.active::after,.page-tabs a:hover::after { width: 100%; }

/* ===== Page Content (会社概要) ===== */
.page-content {
  background: #fff;
  padding: 56px 0 72px;
}
.intro-text {
  max-width: 1180px;
  font-size:20px;
}
.intro-text p {
  line-height: 2;
  color: #000;
  margin-bottom: 24px;
  text-align: justify;
}
.intro-text p:last-child { margin-bottom: 0; }

/* ===== Member Organizations ===== */
.member-box {
  margin-top: 48px;
  background: #f5f7fa;
  border-radius: 8px;
  padding: 40px 32px 44px;
}
.member-box-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: #004898;
  margin-bottom: 36px;
  letter-spacing: 0.06em;
  background: url(hsgy-002.png) no-repeat center bottom;
  padding-bottom:10px;
}

.member-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}
.member-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 16px;
  position: relative;
}
.member-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 44px;
  background: #004898;
}
.member-icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  color: #004898;
}
.member-name {
  font-size: 20px;
  font-weight: 700;
  color: #004898;
  line-height: 1.3;
}

/* ===== Philosophy Section (経営理念) ===== */
.philosophy-section {
  background: #fff;
  padding: 80px 0 96px;
}
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.philosophy-slogan {
  font-size: 44px;
  font-weight: 500;
  color: #004898;
  line-height: 1.5;
  margin-bottom: 36px;
  font-family: "KINGHWA";
}
.philosophy-slogan:last-child { margin-bottom: 0; }
.philosophy-image {
  border-radius: 4px;
  overflow: hidden;
}
.philosophy-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== Page Hero Subtitle ===== */
.page-hero-subtitle {
  margin-top: 16px;
  font-size: 18px;
  font-weight: 400;
  color: #fff;
  line-height: 1.5;
}

/* ===== Strengths Page (私たちの強み) ===== */
.strengths-page {
  background: #fff;
  padding: 72px 0 88px;
}
.str-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}
.str-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e5e8ec;
  border-radius: 6px;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  position:relative;
}
.str-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.1);
}
.str-card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.str-card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.str-card:hover .str-card-img img { transform: scale(1.05); }
.str-card-body {
  padding: 24px 24px 28px;
  display: flex;
  gap:20px;
}
.str-card-head {
  margin-bottom: 16px;
}
.str-card-icon {
  width: 80px; height: 80px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #eaf1f8;
  color: #004898;
  display: flex;
  align-items: center;
  justify-content: center;
}
.str-card-icon svg { width: 19px; height: 19px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.str-card-title {
  font-size: 22px;
  font-weight: 700;
  color: #004898;
  line-height: 1.5;
}
.str-card-text {
  font-size: 18px;
  color: #000;
  line-height: 1.5;
  margin-top:15px;
}
.str-card-arrow {
  margin-top: 22px;
  color: #333;
  font-size: 20px;
  line-height: 1;
  transition: transform .25s;
  position: absolute;
  bottom:20px;
  left:50%;
  margin-left:-16px;
}
.str-card:hover .str-card-arrow { transform: translateX(5px); }

/* ===== Business Page (事業内容) ===== */
.business-page { background: #fff; }
.biz-group { padding: 40px 0; }
.biz-group2{background: #eaf5fe;}
.biz-group.alt { background: #f5f7fa; }
.biz-row {
  display: flex;
  gap: 16px;
  align-items: stretch;
}
.biz-panel {
  flex: 0 0 20%;
  background: linear-gradient(135deg, #dce9f7 0%, #eef5fc 100%);
  border-radius: 6px;
  padding: 22px 20px 24px;
  display: flex;
  flex-direction: column;
}
.biz-panel2{background: url(synr-bg-001.png) no-repeat center center;}
.biz-panel3{background: url(synr-bg-002.png) no-repeat center center;}
.biz-panel-title {
  font-size: 20px;
  font-weight: 700;
  color: #004898;
  margin-bottom: 14px;
}
.biz-panel-text {
  font-size: 16px;
  color: #333;
  line-height: 1.5;
  margin-bottom: 22px;
  flex: 1;
}
.biz-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  align-self: flex-start;
  padding: 5px 15px;
  border: 1px solid #8fb6dd;
  border-radius: 8px;
  background: #fff;
  color: #004898;
  font-size: 16px;
  font-weight: 700;
  transition: background .25s, border-color .25s, color .25s;
}
.biz-btn:hover { background: #004898; border-color: #004898; color: #fff; }
.biz-btn span { font-size: 15px; line-height: 1; }
.biz-card {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  border-radius: 4px;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  position: relative;
}
.biz-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(0,0,0,0.1); }
.biz-card-img { overflow: hidden; }
.biz-card-img img { width: 100%;   transition: transform .4s; }
.biz-card:hover .biz-card-img img { transform: scale(1.06); }
.biz-card-body {
  padding: 14px 12px 16px;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.biz-card-title { font-size: 18px; font-weight: 700; color: #004898; line-height: 1.3; margin-bottom: 10px; }
.biz-card-text { font-size: 12px; color: #777; line-height: 1.7; text-align: left; }
.biz-card-arrow { margin:0 auto; padding-top: 14px; color: #333; font-size: 16px; line-height: 1; text-align: center;position: absolute;bottom:15px;left:50%;margin-left:-16px;}
.biz-card-arrow img{width:auto;}

/* ===== Business Detail Page (事業詳細) ===== */
.biz-detail-page { background: #fff; padding: 64px 0 80px; }
.biz-detail-item {
  display: flex;
  gap: 0;
  justify-content: space-between;
  margin-bottom: 40px;
  
}
.biz-detail-item:hover img{}
.biz-detail-item:last-child { margin-bottom: 0; }
.biz-detail-item.reverse { flex-direction: row-reverse; }
.biz-detail-body { flex: 1 1 0; min-width: 0; background: #f5f5f5;min-height: 320px;
  padding:30px;
  border-radius: 10px;margin-top:15px;}
.biz-detail-head { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.biz-detail-num {
  width: 34px; height: 34px;
  flex-shrink: 0;
  background: #004898;
  color: #fff;
  font-size: 15px; font-weight: 700;
  letter-spacing: .02em;
  display: flex; align-items: center; justify-content: center;
  border-radius: 3px;
}
.biz-detail-title { font-size: 22px; font-weight: 700; color: #004898; letter-spacing: .02em; }
.biz-detail-text { font-size: 18px; color: #000; line-height: 1.5; }
.biz-detail-text + .biz-detail-text { margin-top: 10px; }
.biz-detail-list { margin-top: 18px; }
.biz-detail-list li {
  position: relative;
  padding-left: 25px;
  font-size: 18px;
  color: #444;
  line-height: 1.5;
  margin-bottom: 8px;
  background: url(blue-c.png) no-repeat 0 5px;
}
.biz-detail-list li h5{color: #004898;font-size: 18px;}
.biz-detail-list li p{color: #000;}
.biz-detail-list li:last-child { margin-bottom: 0; }

.biz-detail-media { width:500px; position: relative; }
.biz-detail-img {
  
  border-radius: 6px;
}
.biz-detail-img img { position: absolute;width:100%; top:0; }
/*.biz-detail-img:hover img,.biz-detail-figure:hover img{transform: scale(1.06);}*/
.biz-detail-btn { margin-top: 24px; background: none;}
.biz-detail-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 32px;
}
.biz-detail-figure{box-shadow: 0 2px 10px 0px rgba(0, 0, 0, 0.3);}
.biz-detail-figure img {
  width: 100%;
  border-radius: 10px;
}
.biz-detail-caption { margin-top: 14px; padding:20px 40px;}
.biz-detail-caption strong { display: block; font-size: 20px; color: #000; font-weight: normal; text-align: center; margin-bottom: 6px; }
.biz-detail-caption p { font-size: 18px; color: #000; line-height: 1.5; }

/* ===== Detail Sub Page (港湾荷役機器など) ===== */
.sec-intro { font-size: 20px; color: #000; line-height: 1.5; }
.detail-sec { margin-top: 56px; }
.sec-head { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; flex-wrap: wrap; }
.sec-label {
  display: inline-block;
  color: #004898;
  font-size: 22px;
  font-weight: 700;
  padding: 0 12px;
  border-radius: 2px;
  position: relative;
}
.sec-label::after{
content: "";
position: absolute;
width:4px;
background: #004898;
left:0;
top:5px;
height: 28px;
}
.sec-label-sub { font-size: 15px; font-weight: 700; color: #004898; }
.product-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e5e8ec;
  border-radius: 6px;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  padding:20px;
}
.product-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(0,0,0,0.08); }
.product-card-img { }
.product-card-img--sm {  }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-body { padding: 18px 20px 20px; flex: 1; }
.product-card-title { font-size: 18px;padding-left:15px; font-weight: 700; color: #004898; margin-bottom: 12px; line-height: 1.5; background: url(sanjiao.png) no-repeat left center;}
.product-card-list li {
  position: relative;
  padding-left: 15px;
  font-size: 16px;
  color: #000;
  line-height: 1.5;
}
.product-card-list li::before { content: '・'; position: absolute; left: 0; color: #999; }

.czbp-list{padding:20px;box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);margin-top:40px;}
.czbp-list-con{display: grid;justify-content: space-around;gap:40px; grid-template-columns: repeat(3, 1fr);margin-top:20px;}
.czbp-list-title{font-size:18px;font-weight: 700; color: #004898;background: url(sanjiao.png) no-repeat 0 center;padding-left:15px;}
.czbp-list-con-item{background: #eaf5fe;padding:20px;border-radius: 10px; position: relative;}
.czbp-list-con-item h5{color: #004898;font-size:18px;margin-bottom:10px;}
.czbp-list-con-item p{font-size:16px;margin-bottom:10px;}
.m100{margin-top:60px;}
.czbp-list-con-item img{position: absolute;}
.czbp-list-con-item img.pic1{right:20px;bottom:80px;}
.czbp-list-con-item img.pic2{left:40px;bottom:5px;}
.czbp-list-con-item img.pic3{right:20px;bottom:30px;}

.icon-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.icon-cols2{grid-template-columns: repeat(5, 1fr);}
.icon-col { text-align: center; box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);padding:20px;}
.icon-col-icon {
  width: 62px; height: 62px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: #eef4fa;
  color: #3a76b0;
  display: flex; align-items: center; justify-content: center;
}
.icon-col-icon svg { width: 30px; height: 30px; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.icon-col-title { font-size: 18px; font-weight: 700; color: #004898; line-height: 1.5; margin-bottom: 10px; }
.icon-col-text { font-size: 16px; color: #000; line-height: 1.5; text-align: left;}
.detail-subhead {
  font-size: 20px;
  font-weight: 700;
  color: #004898;
  margin: 15px 0 14px;
  padding-left: 0;
  line-height: 1.4;
}
.detail-list-2col { }
.col2{display: flex;gap:60px;justify-content: space-between;}

.detail-list-2col .biz-detail-list { margin-top: 0; }
.biz-detail-list li strong { color: #004898; }

/* ===== News list page ===== */
.nl-section { padding: 56px 0 72px; background: #fff; }
.nl-list { border-top: 1px solid #e8eaed; }
.nl-item {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 22px 16px;
  border-bottom: 1px solid #e8eaed;
  transition: background .2s;
}
.nl-item:hover { background: #f5f7fa; }
.nl-date { flex: 0 0 110px; font-size: 18px; color: #666; }
.nl-source { flex: 0 0 auto; }
.nl-source-badge {
  display: inline-block;
  font-size: 16px;
  line-height: 1;
  color: #2c6ca8;
  background: #e7f0fa;
  padding: 5px 10px;
  border-radius: 3px;
  white-space: nowrap;
}
.nl-body { flex: 1; min-width: 0; }
.nl-title {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 6px;
  transition: color .2s;
}
.nl-item:hover .nl-title { color: #004898; }
.nl-desc {
  font-size: 16px;
  color: #8a9099;
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nl-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 48px;
}
.nl-btn {
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #333;
  background: #fff;
  border: 1px solid #dcdfe4;
  border-radius: 3px;
  transition: all .2s;
}
.nl-btn:hover { border-color: #004898; color: #004898; }
.nl-btn.active { background: #004898; border-color: #004898; color: #fff; }

/* ===== Responsive: Tablet (<= 1024px) ===== */
@media (max-width: 1024px) {
  .container { padding: 0 32px; }
  .header-top-inner { height: 34px; }
  .header-inner { height: 64px; gap: 20px; }
  .main-nav { gap: 20px; }
  .main-nav a { font-size: 16px; }
  .hero { height: 440px; }
  .hero-arrow { width: 40px; height: 40px; }
  .hero-arrow--prev { left: 12px; }
  .hero-arrow--next { right: 12px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .feature-item:not(:last-child)::after { display: none; }
  .feature-item:nth-child(odd)::after {
    content: ''; position: absolute; right: 0; top: 20%;
    width: 1px; height: 60%; background: #e0e0e0;
  }
  .strengths-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto 40px; }
  .business-cards.row-5 { grid-template-columns: repeat(3, 1fr); }
  .business-cards.row-4 { grid-template-columns: repeat(2, 1fr); }
  .split-section { grid-template-columns: 1fr; }
  .sustainability-col { min-height: 360px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  .page-hero { height: 280px; }
  .page-hero-title { font-size: 34px; }
  .page-tabs-inner { gap: 36px; }
  .page-tabs a { font-size: 14px; }
  .page-content { padding: 44px 0 56px; }
  .intro-text { max-width: 100%; }
  .member-grid { grid-template-columns: repeat(2, 1fr); row-gap: 32px; }
  .member-item:nth-child(2n)::after { display: none; }
  .philosophy-section { padding: 56px 0 64px; }
  .philosophy-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .philosophy-slogan { font-size: 22px; line-height: 1.85; margin-bottom: 28px; }
  .page-hero-subtitle { font-size: 14px; }
  .strengths-page { padding: 56px 0 64px; }
  .str-cards { grid-template-columns: 1fr; gap: 28px; max-width: 560px; margin: 0 auto; }
  .biz-group { padding: 32px 0; }
  .biz-row { flex-wrap: wrap; }
  .biz-panel { flex: 0 0 100%; }
  .biz-panel-text { margin-bottom: 18px; }
  .biz-card { flex: 0 0 calc((100% - 32px) / 3); }
  .biz-detail-page { padding: 48px 0 56px; }
  .biz-detail-item { gap: 32px; margin-bottom: 48px; }
  .biz-detail-title { font-size: 20px; }
  .detail-sec { margin-top: 44px; }
  .product-cards { grid-template-columns: repeat(2, 1fr); }
  .icon-cols { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .detail-list-2col { gap: 4px 24px; }
  .nl-item { gap: 20px; }
  .nl-date { flex-basis: 96px; font-size: 14px; }
}

/* ===== Responsive: Mobile (<= 640px) ===== */
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .header-top { display: none; }
  .header-inner { height: 64px; }
  .main-nav, .header-utils { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: #fff;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    z-index: 999;
    height: auto;
    align-items: flex-start;
  }
  .main-nav.open a { font-size: 16px; width: 100%; padding: 8px 0; }
  .brand-jp { font-size: 16px; }
  .brand-en { font-size: 8px; }
  .hero { height: 280px; }
  .hero-arrow { width: 36px; height: 36px; }
  .hero-arrow svg { width: 18px; height: 18px; }
  .hero-dots { bottom: 12px; gap: 8px; }
  .hero-dot { width: 10px; height: 10px; }
  .features { padding: 40px 0; }
  .features-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-item { padding: 0 16px; }
  .feature-item::after { display: none !important; }
  .section-title { font-size: 22px; }
  .strengths { padding: 48px 0; }
  .strength-card { padding: 28px 24px; }
  .business { padding: 48px 0; }
  .business-row { flex-direction: column; gap: 12px; }
  .business-label { width: auto; writing-mode: horizontal-tb; padding: 8px 16px; }
  .business-cards.row-5, .business-cards.row-4 { grid-template-columns: repeat(2, 1fr); }
  .news-col { padding: 32px 24px; }
  .news-header h2 { font-size: 20px; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-main { padding: 40px 0 28px; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
  .sustainability-content { padding: 32px 24px; }
  .sustainability-content h2 { font-size: 22px; }
  .page-hero { height: 200px; }
  .page-hero-title { font-size: 26px; }
  .page-tabs-inner {
    gap: 24px;
    height: auto;
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .page-tabs a { font-size: 13px; white-space: nowrap; }
  .page-content { padding: 32px 0 40px; }
  .intro-text p { font-size: 14px; line-height: 1.9; }
  .member-box { padding: 28px 20px 32px; margin-top: 32px; }
  .member-grid { grid-template-columns: 1fr; row-gap: 24px; }
  .member-item::after { display: none !important; }
  .member-item { justify-content: flex-start; padding: 0; }
  .philosophy-section { padding: 40px 0 48px; }
  .philosophy-grid { grid-template-columns: 1fr; gap: 32px; }
  .philosophy-slogan { font-size: 20px; line-height: 1.8; margin-bottom: 24px; }
  .page-hero-subtitle { font-size: 13px; margin-top: 10px; }
  .strengths-page { padding: 40px 0 48px; }
  .str-cards { gap: 24px; }
  .str-card-body { padding: 20px 20px 24px; }
  .str-card-title { font-size: 15px; }
  .str-card-text { font-size: 13px; line-height: 1.85; }
  .biz-group { padding: 24px 0; }
  .biz-panel { padding: 18px 16px 20px; }
  .biz-panel-title { font-size: 15px; }
  .biz-card { flex: 0 0 calc((100% - 16px) / 2); }
  .biz-card-title { font-size: 12px; }
  .biz-card-text { font-size: 11px; }
  .biz-detail-page { padding: 32px 0 40px; }
  .biz-detail-item, .biz-detail-item.reverse { flex-direction: column; gap: 20px; margin-bottom: 40px; }
  .biz-detail-head { gap: 12px; margin-bottom: 14px; }
  .biz-detail-num { width: 28px; height: 28px; font-size: 13px; }
  .biz-detail-title { font-size: 18px; }
  .biz-detail-text, .biz-detail-list li { font-size: 13px; }
  .biz-detail-media { flex: 0 0 auto; min-height: 0; }
  .biz-detail-img { height: 220px; }
  .biz-detail-gallery { grid-template-columns: 1fr; gap: 24px; margin-top: 24px; }
  .detail-sec { margin-top: 36px; }
  .sec-head { gap: 10px; margin-bottom: 20px; }
  .sec-label { font-size: 14px; padding: 7px 16px; }
  .sec-label-sub { font-size: 14px; }
  .product-cards { grid-template-columns: 1fr; }
  .product-card-body { padding: 16px 16px 18px; }
  .icon-cols { grid-template-columns: 1fr; gap: 26px; }
  .detail-list-2col { grid-template-columns: 1fr; gap: 0; }
  .nl-section { padding: 36px 0 48px; }
  .nl-item { flex-wrap: wrap; gap: 8px 12px; padding: 18px 10px; }
  .nl-date { flex-basis: auto; font-size: 13px; }
  .nl-body { flex: 1 0 100%; }
  .nl-title { font-size: 15px; }
  .nl-desc { font-size: 12px; }
  .nl-pagination { gap: 6px; margin-top: 32px; flex-wrap: wrap; }
  .nl-btn { min-width: 32px; height: 32px; font-size: 13px; padding: 0 8px; }
}