* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    /* Colors from Figma */
    --primary-blue: #132D8A;
    --secondary-blue: #0088FF;
    --accent-gold: #C7BE7C;
    --accent-teal: #00C8B3;
    --text-dark: #000000;
    --text-light: #FFFFFF;
    --text-gray: #999999;
    --bg-light: #F3F3F3;
    --bg-white: #FFFFFF;
    --bg-dark: #000933;
    --bg-overlay: rgba(25, 61, 129, 0.8);
    
    /* Gradients */
    --gradient-primary: linear-gradient(180deg, rgba(19, 45, 138, 1) 0%, rgba(104, 182, 229, 1) 100%);
    --gradient-button: linear-gradient(180deg, rgba(29, 98, 226, 1) 0%, rgba(35, 233, 134, 1) 100%);
    
    /* Typography */
    --font-primary: 'Shippori Mincho', serif;
    --font-secondary: 'Noto Sans JP', sans-serif;
    
    /* Spacing */
    --container-max-width: 1680px;
    --section-padding: 120px 0;
    --element-spacing: 40px;
}

:target {
  scroll-margin-top: 100px; /* 固定ヘッダーの高さに合わせて調整 */
}

body {
    font-family: var(--font-secondary);
    overflow-x: hidden;
    background: #fff;
    color: #262626;
    scroll-behavior: smooth;
    transition: all 0.3s ease;
}

/* PC/モバイル表示制御 */
.smponly {
    display: none !important;
}

@media (max-width: 768px) {
    .pconly {
        display: none !important;
    }
    .smponly {
        display: block !important;
    }
}

a.page-btn {
  text-decoration: none;
}

.logo {
    width: 186px;
}

#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
}

.content {
    position: relative;
    z-index: 2;
}

.hero-section {
    height: 150vh;
    display: flex;
    align-items: center;
    padding-left: 8%;
    justify-content: end;
    background-color: rgba(0,0,0,0.2);
}

.catchcopy {
    opacity: 0;
    pointer-events: auto;
}

.catchcopy h1 {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
}

.catchcopy p {
    font-size: 1.3rem;
    line-height: 1.8;
    max-width: 500px;
    font-weight: 300;
    opacity: 0.9;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  z-index: 1000;
  padding: 10px 0;
  transition: all 0.3s ease;
}

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

/* PC表示のみ：ナビゲーションとお問い合わせボタンを右寄せにグループ化 */
@media (min-width: 769px) {
    .header-content {
        display: flex;
        align-items: center;
    }
    
    .logo {
        flex-shrink: 0;
    }
    
    .nav {
        margin-left: auto;
        margin-right: 20px;
    }
    
    .header-cta {
        flex-shrink: 0;
    }
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-list a {
    color: #262626;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: -0.015em;
    transition: color 0.3s ease;
}

.nav-list a:hover {
    color: var(--primary-blue);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

.header .container {
  width: 1680px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 70px;
}

.header-cta button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 25px;
  border: none;
  border-radius: 6px;
  font-family: var(--font-secondary);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: -0.015em;
  color: #fff;
  background-color: var(--accent-teal);
}

.hero-content {
    text-align: center;
    color: var(--text-light);
    max-width: 700px;
    padding: 0 20px;
    text-align: left;
    font-family: var(--font-primary);
}

.hero-title {
    font-size: 52px;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: 0.02em;
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 21px;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: 0.02em;
    margin-bottom: 15px;
}

.hero-description {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.77;
    letter-spacing: 0.02em;
}

.innerwrap {
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
}

/* スクロール時のコンパクトナビゲーション */
.header.scrolled {
    background-color: #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    padding: 10px 0;
}

.header.scrolled .logo img {
    height: 44px;
    width: auto;
}

.header .logo img.blogo {
    display: none;
}

.header.scrolled .logo img.wlogo {
    display: none;

}
.header.scrolled .logo img.blogo {
    display: block;
}

.header.scrolled .nav-list a {
    color:#5e5e5e;
}

/* ドロップダウンメニューのスタイル */
.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link::after {
    content: '▼';
    font-size: 10px;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.nav-item.dropdown:hover .nav-link::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    min-width: 216px;
    box-shadow: 0 8px 24px rgba(19, 45, 138, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(19, 45, 138, 0.1);
    list-style: none;
    padding: 8px 0;
    margin: 10px 0 0 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-item.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: #262626 !important;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    position: relative;
}

.dropdown-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--accent-teal);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.dropdown-menu a:hover {
    background: linear-gradient(90deg, rgba(0, 200, 179, 0.08) 0%, rgba(0, 200, 179, 0.03) 100%);
    color: var(--primary-blue);
    padding-left: 25px;
}

.dropdown-menu a:hover::before {
    opacity: 1;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border-top: 1px solid #eee;
        margin-top: 0;
        display: none;
    }
    
    .nav-item.dropdown.active .dropdown-menu {
        display: block;
    }
    
    .nav-link::after {
        content: '▶';
    }
    
    .nav-item.dropdown.active .nav-link::after {
        transform: rotate(90deg);
    }
}

/* セクション共通スタイル */
.section {
    min-height: 100vh;
    padding: 10rem 8%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: background 0.8s ease;
}

.section-content {
  max-width: 1440px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 15px;
}

.section-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.section-content .sub-description {
    font-size: 16px;
    line-height: 1.8;
    font-weight: 500;
    margin-bottom: 30px;
}

.sectionttl-h2 {
    margin-bottom: 30px;
    position: relative;
}

.sectionttl-h2:before {
    position: absolute;
    top:8px;
    left: -30px;
    width: 15px;
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(rgba(19, 45, 138, 1.0), rgba(104, 182, 229, 1.0));
    content: "";
}

.sectionttl-en {
  font-size: 54px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 0px;
  font-family: var(--font-primary);
  color: #999999;
}
.sectionttl-ja {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -1.5%;
  color: #000000;
  margin-bottom: 20px;
  position: relative;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #666;
}

.breadcrumb ol {
  display: flex;
  list-style: none;
}

.breadcrumb ol li a::after {
    content: "/";
    margin: 0 10px;
    color: #666;
    
}

/* KPIセクション1: 背景透過なし（ソリッドカラー） */
.kpi-section {
    background: #F3F3F3;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.kpi-card {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.kpi-image {
position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 187px;
  overflow: hidden;
}

.kpi-image img{
  transform: scale(1);
  transition: transform 0.3s ease;
    width: 100%;
  height: 100%;
  object-fit: cover;
}

.kpi-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
  margin-top: 170px;
}

.kpi-number {
    font-size: 2vw;
    font-weight: 700;
    color: var(--secondary-blue);
    margin-bottom: 10px;
    position: relative;
    z-index: 2;
}

.kpi-number.green {
    color: #00C8B3; 
}

.kpi-number.yellow {
    color: #F08F07; 
}

.kpi-number.purple {
    color: #FF0099; 
}

.kpi-description {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    position: relative;
    z-index: 2;
}

.industry-info {
    text-align: center;
    margin-bottom: 40px;
}

.industry-info h3 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.industry-item img {
    width: 100%;
    height: 99px;
    object-fit: cover;
    border-radius: 8px;
}

.infographic-flexbox {
  display: flex;
  justify-content: center; /* 横方向の整列：中央寄せ */
  align-items: flex-start; /* 縦方向の整列：上揃え */
  gap: 20px; /* 画像の間の余白 */
}

.infographic-flexbox img {
  width: 50%;
  max-width: 800px; /* 各画像の最大幅を制限 */
  height: auto;
  display: block;
}

/* テクノロジーセクション1: 背景透過なし（ソリッドカラー） */
.technology-section {
    background: #fff;
}

.technology-section .section-title {
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 20px;
}

.technology-section .section-subtitle {
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 20px;
}

.technology-section .section-header{
    padding: 100px 0;
    text-align: center;
}

.technology-section h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 20px;
}

.technology-section .section-description {
    color: var(--text-dark);
    text-align: center;
    font-size: 20px;
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 80px;
}

.tech-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.tech-item {
    background: var(--bg-light);
    border-radius: 30px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    position: relative;
}

.tech-year {
  position: absolute;
  top: -20px;
  left: 20px;
  transform: translateX(-50%);
  width: 115px;
  height: 115px;
  background: #FFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 27px;
  font-weight: 900;
  color: #1055C6;
  border: 10px solid #1055C6;
}

.tech-content h4 {
    font-size: 24px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 2.58;
}

.tech-content p {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.tech-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  padding-left: 25px;
  margin-bottom: 20px;
  position: relative;
}

.tech-details::before {
  content: "";
  width: 10px;
  height: 100%;
  border-radius: 100px;
  background-color: #000;
  position: absolute;
  left: 0;
  top: 2px;
}

.tech-details.detail01::before {
    background-color: #1D62E2;
}
.tech-details.detail02::before {
    background-color: #00C8B3;
}

.tech-details .patent,
.tech-details .version {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-dark);
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 10px;
}

.api-card {
  background: var(--bg-light);
  border-radius: 8px;
  padding: 10px 20px 30px 20px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.api-icon {
  position: absolute;
  background-color: #00c8b3;
  left: 0;
  top: 0;
  width: 70px;
  height: 70px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 0 0 10px;
}

.api-card h4 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
    margin-top: 0;
    line-height: 1.2;
    padding-left: 90px;
    min-height: 70px;
    display: flex;
    align-items: center;
}

.api-card h4.long-title {
    font-size: 20px;
}

.api-card p {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-dark);
  line-height: 1.6;
  margin-bottom: 30px;
  margin-top: 0;
  padding-left: 90px;
  text-align: left;
}

.tech-cta {
    text-align: center;
}

.api-card .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 30px;
  border: none;
  border-radius: 6px;
  font-family: var(--font-secondary);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: -0.015em;
}

.api-card .btn.btn-outline {
  background: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

.historygraph {
  margin-top: 0px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.historygraph.animate-fade-in-up {
  opacity: 1;
  transform: translateY(0);
}

.historygraph h3 {
  font-size: 40px;
  font-weight: 800;
  color: #132d8a;
  line-height: 1.2;
}

.historygraph p {
  width: 40%;
  margin-top: 10px;
  line-height: 1.5;
}


/* セクション2: 画像が透けて見える */
.section-2 {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7) 0%, rgb(255, 255, 255) 100%);
}

.warranty-tech-section .section-title {
  color: #E3D887;
  text-align: center;
  font-size: 72px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 70px;
  font-family: var(--font-primary);
}

.section-subtitle-group {
    text-align: center;
    margin-bottom: 50px;
}

.highlight-text {
  display: block;
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.015em;
  color: #26265F;
  font-family: var(--font-primary);
}

.warranty-tech-section .section-description_sp {
    text-align: center;
font-size: 26px;
  font-weight: 500;
    line-height: 1.56;
    letter-spacing: -0.015em;
    margin-bottom: 70px;
    color: #26265F;
    font-family: var(--font-primary);
}

.service-tags {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  margin-top: 100px;
  max-width: 900px;
  margin: 0 auto;
}

.tag {
  background: #26265F;
  color: #fff;
  padding: 5px 10px;
  border-radius: 50px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

/* セクション3: 写真背景 */
.section-3 {
    background: #0c0a4ae0;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.section-3 .section-content {
  max-width: 1180px;
}

.connect-section .section-title {
    font-size: 80px;
    font-weight: 800;
    letter-spacing: 0.03em;
    margin-bottom: 20px;
}

.connect-subtitle {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: 0.03em;
    margin-bottom: 60px;
}

.connect-text-blocks {
    margin-bottom: 80px;
}

.text-block {
  background: rgba(0, 6, 23, 0.5);
  padding: 50px 30px;
  margin-top: 60px;
  border-radius: 8px;
  text-align: center;
  color: #fff;
        font-family: var(--font-primary);
}

.text-block.connect01{
  margin-left: -150px;
  width: 100%;
}

.text-block.connect02{
  margin-left: 150px;
  width: 100%;
}

.text-block p {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.8;
    letter-spacing: 0.03em;
}


/* セクション4: グラデーション透過 */
/* Sustainable Section */
.sustainable-section {
  padding: var(--section-padding);
  background: var(--accent-gold);
  position: relative;
}

.sustainable-section::after {
  height: 370px;
  background-color: #fff;
  position: absolute;
  bottom: 0;
  width: 100%;
  content: "";
}
.sustainable-section .section-container {
position: relative;
  z-index: 1;
}

.sustainable-section .section-title {
    color: rgba(28, 34, 38, 0.7);
    font-size: 52px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
        font-family: var(--font-primary);
}

.sustainable-section .section-subtitle {
    color: rgba(0, 0, 0, 0.7);
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
        font-family: var(--font-primary);
}

.sdg-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.sdg-card {
    background: var(--bg-white);
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
    border: 10px solid var(--text-light);
}

.sdg-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.sdg-content {
    padding: 30px 20px;
    text-align: center;
}

.sdg-content h3 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 10px;
}

.sdg-content p {
    font-size: 20px;
    font-weight: 500;
    line-height: 1.55;
}

/* セクション5: */
/* Expansion Section */
.expansion-section {
    padding: var(--section-padding);
    background: var(--bg-white);
}

.expansion-section .section-title {
    color: var(--accent-teal);
    font-size: 74px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 30px;
}

.expansion-section .section-description {
      color: rgba(0, 0, 0, 0.7);
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;  
}

.expansion-section .section-header {
    padding: 70px 0 40px;
    text-align: center;
        font-family: var(--font-primary);
}

.expansion-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 100px;
}

.expansion-item {
    text-align: center;
    position: relative;
}

.expansion-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 4px;
}

.expansion-item h3 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  position: absolute;
  top: 0;
  right: 0;
  background-color: #00c8b3;
  padding: 2px 5px;
  border-radius: 0px 5px 0px 5px;
}

.expansion-item p {

}

.to-be-continued {
  text-align: center;
  font-family: var(--font-primary);
  padding: 40px 0 0;
}

.to-be-continued p {
    font-size: 35px;
    font-weight: 800;
    color: var(--accent-teal);
}

/* 背景装飾要素 */
.section-3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* Case Study Section */
.case-study-section {
  background: rgba(4, 0, 55, 0.37);
  color: var(--text-light);
  backdrop-filter: blur(20px);
}

.case-study-section .sectionttl-en {
    color: var(--accent-gold);
}

.case-study-section .sectionttl-ja {
    color: var(--text-light);
}

.main-case {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: start;
    padding-top: 40px;
}

.case-image {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  overflow: hidden;
  display: grid;
  align-items: center;
  justify-items: center;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
      transition: all 0.3s ease;
}

.case-image img:hover {
    filter: grayscale(0%);
    width: 110%;
}

.case-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.55;
    letter-spacing: -0.015em;
    font-family: var(--font-primary);
}

.case-content p {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: -0.015em;
    margin-bottom: 30px;
}

.case-content blockquote {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: -0.015em;
    margin-bottom: 40px;
    font-style: italic;
}

.case-content button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  border: none;
  border-radius: 100px;
  font-family: var(--font-secondary);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: -0.015em;
  float: right;
}

.case-content a.btn {
  display: block;
  padding: 12px 30px;
  border: none;
  border-radius: 100px;
  background-color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: -0.015em;
  float: right;
  color: #000;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.case-stats.small {
  gap: 10px;
  margin-bottom: 20px;
}

.stat-item {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    position: relative;
}

.case-stats.small .stat-item {
  background: #F2F2F2;
  border-radius: 8px;
  padding: 5px 10px;
}

.stat-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 17px;
    background: var(--accent-gold);
    border-radius: 8px 0 0 8px;
}

.case-stats.small .stat-item::before {
  width: 10px;
}

.stat-number {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 3px;
}

.case-stats.small .stat-number {
  font-size: 18px;
  margin-bottom: 3px;
}

.stat-label {
    font-size: 20px;
    font-weight: 400;
    color: var(--text-dark);
}

.case-stats.small .stat-label {
    font-size: 14px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.case-card {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.5);
        transition: all 0.3s ease;
text-decoration: none;
  display: block;
}

.case-card img {
    width: 100%;
    height: 262px;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.case-card:hover img {
     filter: grayscale(0%);   
}

.case-card button {
  display: block;
  padding: 12px 30px;
  border: none;
  border-radius: 100px;
  font-family: var(--font-secondary);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: -0.015em;
  margin: 0 auto;
}

.case-card-content {
    padding: 30px;
}

.case-card-content h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.8;
    letter-spacing: -0.015em;
}

.case-card-content p {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-dark);
    line-height: 1.875;
    letter-spacing: -0.015em;
    margin-bottom: 20px;
}

.case-tags {
    margin-bottom: 20px;
}

.case-tags .tag {
    background: var(--primary-blue);
    color: var(--text-light);
    padding: 5px 15px;
    border-radius: 3px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: -0.015em;
}

.case-stats-small {
    margin-bottom: 20px;
}

.case-stats-small .stat {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.case-cta {
    text-align: center;
}

.linkunit-btn {
  background: #FFF;
  color: #242424;
  border-radius: 0;
  padding: 10px 30px;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 500;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -0.5%;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  border: 1px solid #565656;
}
.linkunit-btn.center {
    margin: 0 auto;
}

.linkunit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(36, 73, 164, 0.3);
}

.btn-arrow {
  font-size: 18px;
  display: inline-block;
  overflow: hidden;
  position: relative;
  width: 40px;
  height: 40px;
  margin-left: 8px;
  border-radius: 0;
  background-color: rgba(196, 196, 196, 0.5);
}

/* 矢印アイコン用の疑似要素 */
.btn-arrow::before,
.btn-arrow::after {
    content: "→";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation-fill-mode: both;
    animation-duration: 0.6s;
    font-size: 18px;
}

.btn-arrow::after {
    transform: translateX(-100%);
}

/* ホバー時のアニメーション */
.btn-arrow.is-hover::before {
    animation-name: transformLeftRight;
    animation-delay: 0.2s;
}

.btn-arrow.is-hover::after {
    animation-name: transformRightLeft;
}

.btn-arrow.is-hover:hover::before {
    animation-name: transformRightLeft;
    animation-delay: 0s;
}

.btn-arrow.is-hover:hover::after {
    animation-name: transformLeftRight;
    animation-delay: 0.2s;
}

/* キーフレームアニメーション */
@keyframes transformLeftRight {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(0);
    }
}

@keyframes transformRightLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

/* Information Section */
.information-section {
  padding: 60px 0;
  background: #222;
  min-height: initial;
}

.information-section .sectionttl-h2 {
    float: left;
}

.information-section .sectionttl-h2::before {
    display: none;
}

.information-section .section-title {
    color: var(--accent-gold);
    text-align: center;
    margin-bottom: 20px;
}
.information-section .sectionttl-h2 .sectionttl-ja {
    color: #999999;
}

.information-section .section-subtitle {
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 60px;
    display: none;
}

.info-nav {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
}

.info-link {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
    line-height: 1.79;
    transition: color 0.3s ease;
}

.info-link.active,
.info-link:hover {
    color: var(--primary-blue);
}
.info-flexbox {
    display: flex;
}

.news-list {
  margin: 0 auto;
  width: calc(100% - 300px);
}

.news-item {
    display: flex;
    align-items: center;
    padding: 30px 0;
    border-bottom: 1px solid #D9D9D9;
    gap: 20px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.news-date {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-light);
    line-height: 2.07;
    min-width: 70px;
}

.news-category {
    background: #1F3C55;
    color: var(--text-light);
    padding: 5px 15px;
    border-radius: 60px;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.2;
    min-width: 90px;
    text-align: center;
}

.news-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    line-height: 1.93;
}

.news-title br {
    display: none;
}

.news-arrow {
  font-size: 20px;
  color: var(--text-light);
  min-width: 20px;
  margin-left: auto;
}

.news-arrow img{
  width: 30px;
  margin-bottom: -10px;
}

@media (max-width: 768px) {
  .news-item {
    flex-wrap: wrap;
  }
  
  .news-title {
    order: 3;
    width: 100%;
  }
  
  .news-arrow {
    margin-left: auto;
  }
.highlight-text {
  font-size: 30px;
}
}

/* Contact Section */
.contact-section {
  position: relative;
  overflow: hidden;
  background: rgba(0, 88, 166, 0.6);
  backdrop-filter: blur(10px);
}

.contact-section .section-content{
    max-width: 1240px;
}


.contact-section .section-title {
    color: var(--text-light);
    text-align: center;
    margin-bottom: 20px;
    font-family: var(--font-primary);
}

.contact-section .section-subtitle {
    color: #fff;
    font-size: 20px;
    text-align: center;
    margin-bottom: 80px;
    font-family: var(--font-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
}

.contact-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 4px 34px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
}

.contact-card h3 {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.45;
    letter-spacing: -0.015em;
    text-shadow: 0 4px 4px rgba(0, 0, 0, 0.15);
    font-family: var(--font-primary);
}

.contact-card p {
    font-size: 18px;
    font-weight: 400;
    color: var(--text-light);
    line-height: 1.67;
    letter-spacing: -0.015em;
    margin-bottom: 40px;
    text-align: left;
}

.contact-card:first-child {
  background: rgba(8, 79, 230, 0.44);
}

.contact-card:last-child {
  background: rgba(0, 200, 179, 0.7);
}

.contact-section .btn-primary {
  background-color: #fff;
  border-radius: 100px;
  padding: 15px 20px;
  width: 100%;
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: #09439d;
}

.contact-section .btn-secondary {
  background-color: #fff;
  border-radius: 100px;
  padding: 15px 20px;
  width: 100%;
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: #1db9b9;
}

.contact-section .btn {
    text-decoration: none;
}


/* Footer */
.footer {
    background: var(--bg-white);
    padding: 80px 0 40px;
    min-height: initial;
}

.footer-content {
  display: flex;
  gap: 60px;
  margin-bottom: 40px;
  justify-content: space-between;
}

.footer-logo img {
    height: 64px;
    width: auto;
    margin-bottom: 30px;
}

.company-info p {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-dark);
    line-height: 1.57;
    margin-bottom: 20px;
}

.map-link {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-dark);
    text-decoration: none;
}

.footer-nav {
  display: flex;
  gap: 40px;
  min-width: 60%;
  justify-content: space-between;
}

.nav-column h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 2;
  text-align: left;
}

.nav-column ul {
    list-style: none;
    text-align: left;
}

.nav-column li {
    margin-bottom: 10px;
    text-align: left;
}

.nav-column a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  line-height: 2;
  transition: color 0.3s ease;
  text-align: left;
}

.nav-column a:hover {
    color: var(--primary-blue);
}

.footer-social {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-white);
    border-radius: 50%;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-blue);
    color: var(--text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #999999;
}

.footer-bottom p {
    font-size: 15px;
    font-weight: 400;
    color: var(--text-dark);
    line-height: 1.47;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        padding: 0 40px;
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .industry-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .service-tags {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .sdg-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expansion-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-timeline {
        grid-template-columns: 1fr;
    }
    
    .api-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-nav {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
.logo img {
  height: 44px;
}

.header .container {
  padding: 0 20px;
}
    
    .industry-info h3 {
        font-size: 24px;
    }
    
    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        display: none;
    }
    .header-cta {
        display: none;
    }

    
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-description {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 48px;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-tags {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sdg-grid {
grid-template-columns: 1fr 1fr;
    gap: 10px;
    }
    
    .sdg-content {
        padding: calc(30px / 3) 20px; /* 上下の余白を1/3に */
    }
    
  .expansion-grid {
    grid-template-columns: 1fr 1fr;
  }
    
    .main-case {
        grid-template-columns: 1fr;
    }
    
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .api-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-year {
        width: 90px;
        height: 90px;
        top: -10px;
        left: 10px;
        transform: none;
        font-size: 22px;
        border: 8px solid #1055C6;
    }
    
    .tech-item {
        padding-left: 60px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        justify-content: center;
    }
    
    .footer-nav {
        display: none;
    }
    
    .footer-social {
        justify-content: center;
    }
.warranty-tech-section .section-title {
  font-size: 67px;
  line-height: 1.4;
}
.warranty-tech-section .section-description_sp {
    font-size: 20px;
}
.text-block.connect01,.text-block.connect02 {
  margin-left: 0;
}
.text-block {
  padding: 30px 20px;
  margin-top: 20px;
}
.text-block p {
  font-size: 18px;
}
.expansion-section .section-title {
  font-size: 26px;
}

.expansion-section .section-description {
  font-size: 18px;
  margin-bottom: 30px;
}
.expansion-item h3 {
  font-size: 15px;
  font-weight: 500;
}
.section {
  min-height: auto;
  padding: 6rem 1%;
}
.case-content h3 {
  font-size: 30px;
}
.case-image {
  height: 500px;
}
.stat-number {
  font-size: 24px;
}
.stat-label {
  font-size: 15px;
}
.case-content p {
  font-size: 15px;
}
.case-content blockquote {
  font-size: 15px;
}
.information-section .sectionttl-h2 {
  float: initial;
  text-align: center;
}
.sectionttl-en {
  font-size: 44px;
}
.sectionttl-ja {
  font-size: 16px;
}
.info-flexbox {
  display: block;
}
.news-list {
  margin: 0 auto;
  width: 100%;
}
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 36px;
    }

  .sdg-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .sdg-card img {
  height: 140px;
}
 .sdg-content {
    padding: 10px;
  }
  .sdg-content h3 {
  font-size: 15px;
  margin-bottom: 5px;
}
.sdg-content p {
  font-size: 14px;
}

  .expansion-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
   .expansion-item h3 {
    font-size: 14px;
    width: 100%;
    border-radius: 8px 8px 0 0;
    line-height: 1.3em;
  }
.expansion-item p {
  font-size: 14px;
}
    
    .industry-grid {
        grid-template-columns: 1fr;
    }
    
    .service-tags {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
    }
    
    .kpi-number {
        font-size: clamp(32px, 8vw, 56px);
        line-height: 1.2;
        margin-bottom: 12px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Focus states for accessibility */
.btn:focus,
.nav-list a:focus,
.info-link:focus,
.social-link:focus {
    outline: 0;
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .hero {
        height: auto;
        padding: 40px 0;
    }
    
    .section-padding {
        padding: 40px 0;
    }
}

@media (max-width: 768px) {
    .catchcopy h1 {
        font-size: 2.5rem;
    }
    
    .catchcopy p {
        font-size: 1rem;
    }
    
    .section-content h2 {
        font-size: 2.2rem;
    }

    .section-content .sub-description {
        font-size: 1rem;
    }
}


/*infographic*/
.timeline-container:not(.animate) .connector-line,
.timeline-container:not(.animate) .milestone {
    opacity: 0;
}

.timeline-container {
  position: relative;
  width: 100%;
  height: 600px;
  margin-top: 0;
}

.timeline-container::before {
  content: " ";
  width: 88%;
  position: absolute;
  top: 50%;
  left: 6%;
  height: 5px;
  background-color: rgb(0, 200, 179);
  border-radius: 10px;
}

        .timeline-container svg {
            top: 0;
            left: 0;
            width: 40%;
            height: 40%;
            overflow: visible;
        }
        .timeline-container svg#timelineSvg {
            position: absolute;
            width: 100%;
            height: 100%;
        }

        .timeline-path {
            fill: none;
            stroke: rgb(0, 200, 179);
            stroke-width: 12;
            stroke-linecap: round;
            stroke-dasharray: 3000;
            stroke-dashoffset: 3000;
            animation: drawLine 3s ease-out forwards;
            display: none;
        }

@keyframes drawLine {
    to {
        stroke-dashoffset: 0;
    }
}

.connector-line {
    stroke: rgba(255, 255, 255, 0.4);
    stroke-width: 2;
    stroke-dasharray: 5, 5;
    opacity: 0;
}

/* animateクラスが追加されたときだけアニメーション実行 */
.timeline-container.animate .connector-line {
    animation: fadeIn 0.5s ease-out forwards;
}

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

.milestone {
    position: absolute;
    transform: translate(-50%, -50%);
    opacity: 0;
}

/* animateクラスが追加されたときだけアニメーション実行 */
.timeline-container.animate .milestone {
    animation: fadeInScale 0.6s ease-out forwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.timeline-container.animate .milestone:nth-child(1) { animation-delay: 0.5s; }
.timeline-container.animate .milestone:nth-child(2) { animation-delay: 0.8s; }
.timeline-container.animate .milestone:nth-child(3) { animation-delay: 1.1s; }
.timeline-container.animate .milestone:nth-child(4) { animation-delay: 1.4s; }
.timeline-container.animate .milestone:nth-child(5) { animation-delay: 1.7s; }
.timeline-container.animate .milestone:nth-child(6) { animation-delay: 2s; }
.timeline-container.animate .milestone:nth-child(7) { animation-delay: 2.3s; }
.timeline-container.animate .milestone:nth-child(8) { animation-delay: 2.6s; }
.timeline-container.animate .milestone:nth-child(9) { animation-delay: 2.9s; }

.milestone-node {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, #63aee0, #18358f);
  border: 2px solid #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  cursor: pointer;
}

        .milestone-node:hover {
            transform: scale(1.1);
            box-shadow: 0 12px 32px rgba(168, 213, 186, 0.4);
        }

        .milestone-icon {
            width: 50px;
            height: 50px;
            fill: white;
        }

.milestone-content {
  position: absolute;
  width: 200px;
  text-align: left;
  border-radius: 10px;
  padding: 10px 15px;
}

        .milestone-content.top {
            bottom: 130px;
            left: 50%;
            transform: translateX(-50%);
        }
.milestone-content.top::after {
  content: " ";
  border-right: 3px dotted #3361ac;
  height: 50px;
  width: 1px;
  bottom: -55px;
  position: absolute;
  left: calc(50% - 3px);
}

        .milestone-content.bottom {
            top: 130px;
            left: 50%;
            transform: translateX(-50%);
        }

.milestone-content.bottom::after {
  content: " ";
  border-right: 3px dotted #3361ac;
  height: 50px;
  width: 1px;
  top: -55px;
  position: absolute;
  left: calc(50% - 3px);
}


.milestone-year {
  font-size: 21px;
  font-weight: 700;
  color: #132d8a;
  margin-bottom: 8px;
  letter-spacing: 2px;
  text-align: center;
}

.milestone-title {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  text-align: center;
}

        .milestone-description {
            font-size: 0.85rem;
            line-height: 1.5;
            opacity: 0.9;
            display: none;
        }

        .legend {
            position: absolute;
            bottom: 50px;
            right: 50px;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
        }

        .legend-dot {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #2f5aa8;
            flex-shrink: 0;
        }

.footer {
  text-align: center;
  margin-top: 0;
  padding: 100px 20px 20px;
  font-size: 1.2rem;
}

        @media (max-width: 768px) {
            .header h1 {
                font-size: 2rem;
            }
            .header h2 {
                font-size: 2.5rem;
            }
            .timeline-container {
                height: 1200px;
            }
            .milestone-content {
                width: 200px;
            }
            .legend {
                position: static;
                margin-top: 50px;
            }
            .infographic-flexbox {
                display: block;
            }
            .infographic-flexbox img{
                width: 100%;
                margin-bottom: 30px;
            }
            .historygraph p {
              width: 100%;
            }
            .kpi-number {
              font-size: clamp(28px, 6vw, 48px);
              line-height: 1.2;
            }
        }

.hover-lift {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 9999px; /* 丸 pill 型 */
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    
    /* ボタンの見た目（自由に調整してOK） */
    background: #0066ff;
    color: #fff;
    
    /* 統一トランジション */
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    
    /* 軽い立体感 */
    box-shadow: 0 4px 10px rgba(0,0,0,0.12);
}

/* ホバーで "浮く" */
.hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.16);
}

/* 押した時に "沈む"（クリック&タップ） */
.hover-lift:active {
    transform: translateY(0);
    box-shadow: 0 3px 8px rgba(0,0,0,0.10);
}

/* スマホでもホバーしない時の違和感を防ぐ */
@media (hover: none) {
    .hover-lift:hover {
        transform: none;
        box-shadow: 0 4px 10px rgba(0,0,0,0.12);
    }
}

    /* ハンバーガーメニュー */
    .hamburger {
      display: none;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      padding: 10px 12px;
      z-index: 1001;
      background: linear-gradient(to bottom, #4a4a4a, #2f2f2f);
      border-radius: 12px;
      min-width: 60px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .hamburger span:not(.menu-text) {
      width: 24px;
      height: 2px;
      background: #fff;
      margin: 3px 0;
      transition: all 0.3s ease;
      border-radius: 2px;
    }

    .hamburger .menu-text {
      color: #fff;
      font-size: 8px;
      font-weight: 600;
      letter-spacing: 0.3px;
      margin-top: 4px;
      font-family: 'Montserrat', sans-serif;
      text-transform: uppercase;
    }

    .hamburger.active span:not(.menu-text):nth-child(1) {
      transform: rotate(45deg) translate(7px, 6px);
    }

    .hamburger.active span:not(.menu-text):nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:not(.menu-text):nth-child(3) {
      transform: rotate(-45deg) translate(7px, -6px);
    }

    .hamburger.active .menu-text {
      display: none; /* メニューが開いたら「MENU」テキストを非表示 */
    }

    /* モバイルメニュー */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 0;
      right: -100%;
      width: 100%;
      height: 100vh;
      background: #fff;
      box-shadow: -2px 0 8px rgba(0,0,0,0.1);
      transition: right 0.3s ease;
      overflow-y: auto;
      z-index: 999;
      padding-top: 80px;
    }

    .mobile-menu.active {
      right: 0;
    }

    .mobile-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0,0,0,0.5);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .mobile-overlay.active {
      opacity: 1;
      z-index: 998;
    }

    .mobile-nav-list {
      list-style: none;
    }

    .mobile-nav-item {
      border-bottom: 1px solid #eee;
    }

    .mobile-nav-link {
      color: #333;
      text-decoration: none;
      padding: 1rem 1.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 500;
    }

    .mobile-nav-item.has-dropdown > .mobile-nav-link::after {
      content: '▼';
      font-size: 0.7rem;
      transition: transform 0.3s;
    }

    .mobile-nav-item.has-dropdown.open > .mobile-nav-link::after {
      transform: rotate(180deg);
    }

    .mobile-dropdown-menu {
      display: none;
      background: #f9f9f9;
      list-style: none;
    }

    .mobile-dropdown-menu.active {
      display: block;
    }

    .mobile-dropdown-menu a {
      color: #666;
      text-decoration: none;
      padding: 0.75rem 2rem;
      display: block;
      font-size: 0.9rem;
    }

    .mobile-dropdown-menu a:hover {
      background: #f0f0f0;
    }

    .demo-content {
      margin-top: 100px;
      padding: 2rem;
    }

    /* レスポンシブ */
    @media (max-width: 768px) {

      .hamburger {
        display: flex;
      }

      .mobile-menu {
        display: block;
      }

      .mobile-overlay.active {
        display: block;
      }

      .demo-card {
        padding: 2rem;
      }

      .demo-card h1 {
        font-size: 2rem;
      }
    }