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

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  overflow-x: hidden;
  min-width: 1920px;
}

/* 导航栏 */
.navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(15px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 15px 0;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(24, 144, 255, 0.15);
}

.nav-container {
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 60px;
}

.logo {
  font-size: 22px;
  font-weight: bold;
  color: #1890ff;
  text-decoration: none;
  letter-spacing: 0.5px;
}

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

.nav-menu li {
  position: relative;
}

.nav-menu a {
  text-decoration: none;
  color: #666;
  font-weight: 500;
  font-size: 16px;
  transition: all 0.3s ease;
  padding: 10px 0;
  position: relative;
}

.nav-menu a:hover {
  color: #1890ff;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #1890ff, #40a9ff);
  transition: width 0.3s ease;
  border-radius: 1px;
}

.nav-menu a:hover::after {
  width: 100%;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: white;
  min-width: 250px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  z-index: 1001;
  border-radius: 15px;
  padding: 15px 0;
  margin-top: 10px;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  border: 1px solid rgba(24, 144, 255, 0.1);
  backdrop-filter: blur(10px);
}

.dropdown:hover .dropdown-content {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-content a {
  color: #333;
  padding: 15px 30px;
  text-decoration: none;
  display: block;
  font-size: 16px;
  transition: all 0.3s ease;
  position: relative;
}

.dropdown-content a:hover {
  background-color: #f8f9fa;
  color: #1890ff;
  padding-left: 35px;
}

.dropdown-content a::before {
  content: '▶';
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: #1890ff;
  opacity: 0;
  transition: all 0.3s ease;
}

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

.contact-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  color: #1890ff;
  font-size: 16px;
}

.contact-info img {
  width: 20px;
  height: 20px;
}

/* 英雄区域 */
.hero {
  position: relative;
  overflow: hidden;
  height: 510px;
  display: flex;
  align-items: center;
  margin-top: 80px;
}

.hero-bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background-color: #f0f8ff;
}

.hero-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 60px;
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  width: 100%;
}

.hero-content {
  max-width: 600px;
  color: white;
}

.hero-content h1 {
  font-size: 72px;
  font-weight: 800;
  color: #1890ff;
  margin-bottom: 20px;
  line-height: 1.1;
  text-shadow: 0 2px 10px rgba(24, 144, 255, 0.1);
}

.hero-content p {
  font-size: 20px;
  color: #333;
  margin-bottom: 40px;
  line-height: 1.6;
}

.cta-button {
  background: linear-gradient(135deg, #1890ff, #40a9ff);
  color: white;
  padding: 18px 40px;
  border: none;
  border-radius: 50px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(24, 144, 255, 0.3);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(24, 144, 255, 0.4);
}

/* 痛点分析区域 */
.pain-points {
  padding: 120px 0;
  background: white;
}

.pain-points-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 60px;
}

.section-title {
  font-size: 42px;
  font-weight: 800;
  color: #333;
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title::before {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(135deg, #1890ff 0%, #40a9ff 100%);
  border-radius: 2px;
}

.pain-points-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
  margin-top: 60px;
}

.pain-point-card {
  background: url('../jc-images/icon/bg-image.png') no-repeat center center;
  background-size: cover;
  background-position: center;
  padding: 50px 35px;
  border-radius: 20px;
  border-left: 4px solid #1890ff;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  min-height: 350px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}



.pain-point-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.75) 0%, rgba(255, 255, 255, 0.65) 100%);
  z-index: 1;
}

.pain-point-card>* {
  position: relative;
  z-index: 2;
}

.pain-point-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.15);
  background-size: 110% 110%;
}

.pain-point-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: #1890ff;
  margin-bottom: 25px;
  position: relative;
  z-index: 2;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.pain-point-card ul {
  list-style: none;
}

.pain-point-card li {
  margin-bottom: 15px;
  padding-left: 25px;
  position: relative;
  font-size: 17px;
  color: #333;
  line-height: 1.6;
  z-index: 2;
  font-weight: 500;
}

.pain-point-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #1890ff;
  font-weight: bold;
  font-size: 16px;
  z-index: 2;
}

/* 解决方案区域 */
.solutions {
  padding: 120px 0;
  background: url('../jc-images/icon/background-image.png') no-repeat center center;
  background-size: cover;
  color: white;
  position: relative;
}

.solutions::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(24, 144, 255, 0.8) 0%, rgba(64, 169, 255, 0.8) 100%);
  z-index: 1;
}

.solutions-container {
  position: relative;
  z-index: 2;
}

.solutions-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 60px;
}

.solutions .section-title {
  color: white;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
}

.tab {
  padding: 15px 30px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.tab::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.tab:hover::before {
  left: 100%;
}

.tab.active {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.tab:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.15);
  color: white;
}

.solution-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.solution-image {
  text-align: center;
  position: relative;
  z-index: 2;
  order: 1;
}

.solution-text {
  order: 2;
}



.solution-image img {
  width: 200px;
  height: 200px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.solution-text h3 {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}

.solution-text ul {
  list-style: none;
  margin-bottom: 30px;
}

.solution-text li {
  margin-bottom: 15px;
  padding-left: 30px;
  position: relative;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  z-index: 2;
}

.solution-text li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: #fff;
  font-weight: bold;
  font-size: 18px;
  z-index: 2;
}

.effect {
  background: rgba(255, 255, 255, 0.1);
  padding: 25px;
  border-radius: 15px;
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 2;
}

.effect strong {
  color: #fff;
  font-size: 18px;
  display: block;
  margin-bottom: 10px;
}

.effect p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  margin: 0;
}



/* 核心价值区域 */
.core-values {
  padding: 120px 0;
  background: white;
}

.core-values-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 60px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.value-card {
  background: white;
  padding: 50px 30px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.value-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
  border-color: #1890ff;
}

.value-card img {
  width: 80px;
  height: 80px;
  margin-bottom: 25px;
  transition: transform 0.3s ease;
}

.value-card:hover img {
  transform: scale(1.1);
}

.value-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: #1890ff;
  margin-bottom: 15px;
  line-height: 1.3;
}

.value-card p {
  font-size: 16px;
  color: #666;
  line-height: 1.5;
}

/* 侧边栏 */
.sidebar {
  position: fixed;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.sidebar-item {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  color: #1890ff;
  padding: 20px 15px;
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  width: 90px;
  height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(24, 144, 255, 0.2);
}

.sidebar-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(24, 144, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.sidebar-item:hover::before {
  left: 100%;
}

.sidebar-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(24, 144, 255, 0.2);
  background: rgba(255, 255, 255, 0.98);
}

.sidebar-item img {
  width: 28px;
  height: 28px;
  margin-bottom: 6px;
  transition: transform 0.3s ease;
  filter: brightness(0) saturate(100%) invert(48%) sepia(79%) saturate(2475%) hue-rotate(190deg) brightness(118%) contrast(119%);
}

.sidebar-item:hover img {
  transform: scale(1.1);
}

.sidebar-item span {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  color: #1890ff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  text-align: center;
  display: block;
}

/* 页脚 */
.footer {
  background: #1a1a1a;
  color: white;
  padding: 80px 0 40px;
  position: relative;
}



.footer-container {
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 60px;
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: 60px;
  position: relative;
  z-index: 2;
}

.footer-section h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 30px;
  color: #1890ff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 15px;
}

.footer-section a {
  color: #ccc;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  max-width: 100%;
}

.footer-section a:hover {
  color: #1890ff;
  padding-left: 5px;
}

.contact-info-footer {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  color: #ccc;
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-info-footer img {
  width: 20px;
  height: 20px;
  margin-right: 15px;
  filter: brightness(0) invert(1);
}

.qr-codes {
  display: flex;
  gap: 40px;
  margin-top: 40px;
}

.qr-code {
  text-align: center;
}

.qr-code img {
  width: 120px;
  height: 120px;
  margin-bottom: 15px;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.qr-code span {
  font-size: 14px;
  color: #ccc;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  max-width: 100%;
}

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid #333;
  margin-top: 60px;
  color: #999;
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* 响应式设计 */
@media (max-width: 1920px) {
  .hero {
    height: 510px;
  }

  .hero-content h1 {
    font-size: 64px;
  }

  .pain-points-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
  }

  .values-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
  }
}

@media (max-width: 1600px) {

  .nav-container,
  .pain-points-container,
  .solutions-container,
  .core-values-container,
  .footer-container {
    padding: 0 40px;
  }

  .hero {
    height: 510px;
  }

  .hero-content h1 {
    font-size: 56px;
  }

  .pain-points-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .pain-point-card {
    min-height: 320px;
    padding: 45px 30px;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
}

@media (max-width: 1200px) {
  .hero {
    height: 510px;
  }

  .hero-content h1 {
    font-size: 48px;
  }

  .pain-points-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 35px;
  }

  .pain-point-card {
    min-height: 300px;
    padding: 40px 25px;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }

  .solution-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero {
    height: 510px;
    margin-top: 60px;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .pain-points-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .pain-point-card {
    min-height: 280px;
    padding: 35px 20px;
  }

  .values-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .sidebar {
    display: none;
  }

  .section-title {
    font-size: 32px;
  }
}

@media (max-width: 480px) {

  .nav-container,
  .pain-points-container,
  .solutions-container,
  .core-values-container,
  .footer-container {
    padding: 0 20px;
  }

  .hero {
    height: 510px;
    margin-top: 50px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .section-title {
    font-size: 28px;
  }

  .sidebar-item {
    width: 70px;
    height: 70px;
    padding: 15px 12px;
  }

  .sidebar-item img {
    width: 24px;
    height: 24px;
  }

  .sidebar-item span {
    font-size: 10px;
  }
}