/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* 首页Hero区域 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.cta-button:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

/* 通用section样式 */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* 公司简介 */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 3rem;
    text-align: justify;
}

.business-areas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.business-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.business-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.business-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.business-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.business-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.business-card ul {
    list-style: none;
    padding-left: 0;
}

.business-card ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.business-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 企业文化 */
.culture-section {
    background: var(--bg-light);
}

.culture-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.culture-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.culture-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.culture-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.culture-item h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.culture-item p {
    color: var(--text-light);
    line-height: 1.6;
}

.vision-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
}

.vision-box h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.vision-box p {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.95;
}

/* 联系我们 */
.contact-section {
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: #f3f4f6;
    transform: translateX(5px);
}

.contact-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-light);
    margin: 0.3rem 0;
}

.contact-form {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-button {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

.footer p {
    margin: 0.5rem 0;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .business-areas {
        grid-template-columns: 1fr;
    }

    .culture-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .about-text {
        font-size: 1rem;
    }

    .business-card,
    .culture-item {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}
/* 颜色与基础变量 */
:root {
  --primary: #0f4c81;
  --primary-900: #0b3a62;
  --accent: #2fb7a1;
  --bg: #f7f9fc;
  --text: #1a1a1a;
  --muted: #6b7280;
  --border: #e5e7eb;
  --white: #ffffff;
}

/* 全局重置与基础样式 */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(15, 76, 129, 0.1);
  transition: all 0.3s ease;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  border-bottom: 1px solid rgba(15, 76, 129, 0.15);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--primary);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
}
.logo h1:hover {
  transform: scale(1.05);
}
.nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-link {
  text-decoration: none;
  color: var(--text);
  padding: 10px 4px;
  border-bottom: 2px solid transparent;
  font-weight: 500;
  font-size: 15px;
  transition: all 0.3s ease;
  position: relative;
}
.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::before,
.nav-link.active::before {
  width: 100%;
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

.hamburger { 
  display: none; 
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: background 0.2s ease;
}
.hamburger:hover {
  background: rgba(15, 76, 129, 0.1);
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--primary);
  margin: 5px 0;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 首页英雄区 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 68px;
  overflow: hidden;
  background: linear-gradient(135deg, #0f4c81 0%, #1a5fa0 50%, #2fb7a1 100%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.hero-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.6;
  animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(100px, 100px); }
}

.hero-shapes {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  animation: float 20s ease-in-out infinite;
}

.shape-1 {
  width: 400px;
  height: 400px;
  top: -100px;
  left: -100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 300px;
  height: 300px;
  bottom: -50px;
  right: 10%;
  animation-delay: 5s;
}

.shape-3 {
  width: 250px;
  height: 250px;
  top: 50%;
  right: -50px;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(47, 183, 161, 0.2) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 24px;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out;
}

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

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  color: white;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
  animation: fadeIn 1.2s ease-out;
}

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

.hero-title {
  font-size: clamp(42px, 6vw, 72px);
  margin: 0 0 20px;
  color: white;
  font-weight: 800;
  line-height: 1.2;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.title-line {
  display: block;
  font-size: 0.6em;
  font-weight: 400;
  opacity: 0.9;
  letter-spacing: 4px;
}

.title-main {
  display: block;
  font-size: 1.2em;
  background: linear-gradient(135deg, #ffffff 0%, #e0f2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 8px;
}

.hero-subtitle {
  font-size: clamp(18px, 2.5vw, 24px);
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 12px;
  font-weight: 500;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-description {
  font-size: clamp(16px, 2vw, 18px);
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 40px;
  line-height: 1.8;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 1s ease-out 0.8s both;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.cta-button.primary {
  background: white;
  color: var(--primary);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-button.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
  background: #f8fafc;
}

.cta-button.secondary {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  transform: translateY(-3px);
}

.cta-button svg {
  transition: transform 0.3s ease;
}

.cta-button:hover svg {
  transform: translateX(4px);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 700px;
  margin: 0 auto;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  animation: fadeInUp 1s ease-out 1s both;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: fadeIn 1.5s ease-out 1.2s both;
}

.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  letter-spacing: 1px;
}

.scroll-arrow {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  position: relative;
}

.scroll-arrow::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0%, 100% {
    opacity: 0;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) translateY(12px);
  }
}

/* 通用区块 */
.section { padding: 80px 0; }
.section-title {
  font-size: 26px;
  margin: 0 0 20px;
  color: var(--primary);
}
.about-content .about-text { color: var(--text); }
.about-content p { margin: 0 0 14px; color: var(--muted); }

/* 业务板块卡片 */
.business-areas {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.business-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.business-card:hover { transform: translateY(-2px); box-shadow: 0 16px 28px rgba(0,0,0,0.08); }
.business-icon { font-size: 24px; }
.business-card h3 { margin: 10px 0; font-size: 18px; color: var(--text); }
.business-card p { margin: 0 0 10px; color: var(--muted); }
.business-card ul { margin: 0; padding-left: 18px; color: var(--muted); }

/* 企业文化 */
.culture-section { background: linear-gradient(180deg, #f9fbff 0%, #f3f7fc 100%); }
.culture-content {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 10px;
}
.culture-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.06);
}
.culture-icon { font-size: 22px; }
.culture-item h3 { margin: 8px 0; font-size: 18px; color: var(--text); }
.culture-item p { margin: 0; color: var(--muted); }
.vision-box {
  margin-top: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.06);
}
.vision-box h3 { margin: 0 0 8px; font-size: 18px; color: var(--text); }
.vision-box p { margin: 0; color: var(--muted); }

/* お問い合わせ */
.contact-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
  overflow: hidden;
}

.contact-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(15, 76, 129, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(47, 183, 161, 0.08) 0%, transparent 50%);
}

.contact-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(45deg, rgba(15, 76, 129, 0.03) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(15, 76, 129, 0.03) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(15, 76, 129, 0.03) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(15, 76, 129, 0.03) 75%);
  background-size: 60px 60px;
  background-position: 0 0, 0 30px, 30px -30px, -30px 0px;
  opacity: 0.5;
}

.contact-section .container {
  position: relative;
  z-index: 1;
}

.contact-header {
  text-align: center;
  margin-bottom: 60px;
}

.contact-subtitle {
  font-size: 16px;
  color: var(--muted);
  margin-top: 12px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info-wrapper {
  display: flex;
  align-items: stretch;
}

.contact-info-card {
  background: var(--white);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  width: 100%;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-info-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.12);
}

.contact-info-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--bg);
}

.contact-info-header h3 {
  font-size: 24px;
  color: var(--primary);
  margin: 0 0 8px;
  font-weight: 700;
}

.contact-info-header p {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}

.contact-info-items {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-info-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: transform 0.2s ease;
}

.contact-info-item:hover {
  transform: translateX(4px);
}

.contact-icon-wrapper {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.1) 0%, rgba(47, 183, 161, 0.1) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease;
}

.contact-info-item:hover .contact-icon-wrapper {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.15) 0%, rgba(47, 183, 161, 0.15) 100%);
}

.contact-icon {
  font-size: 28px;
}

.contact-details {
  flex: 1;
}

.contact-details h4 {
  font-size: 18px;
  color: var(--text);
  margin: 0 0 8px;
  font-weight: 600;
}

.contact-details p {
  color: var(--text);
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.6;
}

.contact-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: color 0.2s ease;
}

.contact-link:hover {
  color: var(--primary-900);
  text-decoration: underline;
}

.contact-note {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

.contact-form-wrapper {
  display: flex;
  align-items: stretch;
}

.contact-form-card {
  background: var(--white);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  width: 100%;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.form-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--bg);
}

.form-header h3 {
  font-size: 24px;
  color: var(--primary);
  margin: 0 0 8px;
  font-weight: 700;
}

.form-header p {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.required {
  color: #ef4444;
  font-size: 12px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #9ca3af;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(15, 76, 129, 0.1);
  transform: translateY(-1px);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-button {
  width: 100%;
  padding: 16px 24px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-900) 100%);
  color: var(--white);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(15, 76, 129, 0.3);
  margin-top: 8px;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(15, 76, 129, 0.4);
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary) 100%);
}

.submit-button:active {
  transform: translateY(0);
}

.submit-button svg {
  transition: transform 0.3s ease;
}

.submit-button:hover svg {
  transform: translateX(4px);
}

/* 页脚 */
.footer {
  background: var(--primary);
  color: var(--white);
  padding: 28px 0;
  text-align: center;
}
.footer p { margin: 4px 0; }

/* 响应式 */
@media (max-width: 992px) {
  .business-areas { grid-template-columns: 1fr; }
  .culture-content { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-content { 
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .contact-info-card,
  .contact-form-card {
    padding: 30px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
  
  .nav-menu {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    flex-direction: column;
    gap: 4px;
    display: none;
  }
  .nav-menu.active { display: flex; }
  .nav-link {
    padding: 12px 16px;
    border-radius: 8px;
    border-bottom: none;
  }
  .nav-link::before {
    display: none;
  }
  .nav-link:hover,
  .nav-link.active {
    background: rgba(15, 76, 129, 0.08);
  }
  .hamburger { display: block; }
  
  .hero {
    min-height: 90vh;
  }
  
  .hero-content {
    padding: 30px 20px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .cta-button {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-top: 30px;
  }
  
  .shape-1,
  .shape-2,
  .shape-3 {
    display: none;
  }
}

@media (max-width: 480px) {
  .culture-content { grid-template-columns: 1fr; }
  .contact-section {
    padding: 60px 0;
  }
  .contact-header {
    margin-bottom: 40px;
  }
  .contact-info-card,
  .contact-form-card {
    padding: 24px;
    border-radius: 20px;
  }
  .contact-icon-wrapper {
    width: 48px;
    height: 48px;
  }
  .contact-icon {
    font-size: 24px;
  }
}