/* 科技感主题 - 千柏重装大师 */
:root {
  --primary-color: #0062cc;
  --secondary-color: #00b8d4;
  --accent-color: #ff4081;
  --dark-blue: #001a33;
  --medium-blue: #003366;
  --light-blue: #e6f7ff;
  --text-light: #ffffff;
  --text-dark: #001a33;
  --text-gray: #6c757d;
  --background-dark: #001a33;
  --background-light: #ffffff;
  --card-bg: #ffffff;
  --gradient-blue: linear-gradient(135deg, #0062cc, #00b8d4);
  --gradient-accent: linear-gradient(135deg, #ff4081, #ff9100);
  --shadow: 0 10px 30px rgba(0, 26, 51, 0.1);
  --border-radius: 4px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body, html {
  font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background-color: var(--background-light);
  color: var(--text-dark);
  line-height: 1.6;
  scroll-behavior: smooth;
  width: 100%;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-light);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
}

.nav-menu {
  display: flex;
  gap: 30px;
}

.nav-menu a {
  position: relative;
  font-weight: 500;
  color: var(--text-dark);
  padding: 8px 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

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

.download-btn {
  background: var(--gradient-blue);
  color: var(--text-light);
  padding: 10px 25px;
  border-radius: 4px;
  font-weight: 600;
  box-shadow: 0 4px 6px rgba(0, 98, 204, 0.2);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.download-btn i {
  font-size: 18px;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 98, 204, 0.3);
  color: var(--text-light);
}

/* 英雄区域 */
.hero {
  position: relative;
  padding-top: 70px;
  background-color: var(--dark-blue);
  overflow: hidden;
  min-height: 600px;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('../image/home/homech.png') no-repeat center;
  background-size: cover;
  opacity: 0.1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 100px;
  background: linear-gradient(to top, var(--background-light), transparent);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 80px 0;
}

.hero-text {
  max-width: 500px;
}

.hero-text h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-light);
  line-height: 1.2;
}

.hero-text h1 span {
  color: var(--secondary-color);
}

.hero-text p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--light-blue);
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 15px;
}

.btn-primary {
  background: var(--gradient-blue);
  color: var(--text-light);
  padding: 12px 30px;
  border-radius: 4px;
  font-weight: 600;
  box-shadow: 0 4px 6px rgba(0, 98, 204, 0.2);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 98, 204, 0.3);
  color: var(--text-light);
}

.btn-secondary {
  background: transparent;
  color: var(--text-light);
  padding: 12px 30px;
  border-radius: 4px;
  font-weight: 600;
  border: 1px solid var(--secondary-color);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  background: rgba(0, 184, 212, 0.1);
  color: var(--secondary-color);
}

.hero-image {
  position: relative;
  max-width: 600px;
}

.hero-image img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* 特性部分 */
.features {
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: var(--light-blue);
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.5;
  z-index: -1;
}

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

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--dark-blue);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--gradient-blue);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 700px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-blue);
  opacity: 0;
  z-index: -1;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-card:hover::before {
  opacity: 0.05;
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--light-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.feature-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-blue);
  opacity: 0.2;
}

.feature-icon i {
  font-size: 24px;
  color: var(--primary-color);
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--dark-blue);
}

.feature-card p {
  color: var(--text-gray);
}

/* 工作流程部分 */
.workflow {
  padding: 100px 0;
  background-color: var(--light-blue);
  position: relative;
  overflow: hidden;
}

.workflow::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 300px;
  height: 300px;
  background: var(--secondary-color);
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.1;
  z-index: 0;
}

.workflow-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 60px;
  flex-wrap: wrap;
}

.workflow-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
  opacity: 0.2;
  z-index: 0;
}

.workflow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
  width: 22%;
  min-width: 200px;
  margin-bottom: 30px;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--background-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  position: relative;
}

.step-number::before {
  content: '';
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  border-radius: 50%;
  background: var(--gradient-blue);
  opacity: 0.1;
}

.step-number span {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.workflow-step h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--dark-blue);
}

.workflow-step p {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* 系统选择部分 */
.systems {
  padding: 100px 0;
  position: relative;
}

.systems::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  width: 400px;
  height: 400px;
  background: var(--light-blue);
  border-radius: 50%;
  filter: blur(200px);
  opacity: 0.3;
  z-index: -1;
}

.systems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.system-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.system-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-blue);
}

.system-card:hover {
  transform: translateY(-10px);
}

.system-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.system-logo img {
  max-width: 100%;
  height: auto;
}

.system-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: var(--dark-blue);
}

.system-card p {
  color: var(--text-gray);
  margin-bottom: 20px;
}

.system-features {
  text-align: left;
  margin-bottom: 20px;
}

.system-features li {
  margin-bottom: 8px;
  color: var(--text-gray);
  display: flex;
  align-items: center;
  gap: 8px;
}

.system-features li i {
  color: var(--secondary-color);
  font-size: 14px;
}

/* 客户反馈部分 */
.testimonials {
  padding: 100px 0;
  background-color: var(--light-blue);
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 300px;
  height: 300px;
  background: var(--primary-color);
  border-radius: 50%;
  filter: blur(150px);
  opacity: 0.1;
  z-index: 0;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.testimonial-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 60px;
  font-family: Georgia, serif;
  color: var(--primary-color);
  opacity: 0.1;
  line-height: 1;
}

.testimonial-text {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--text-gray);
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 15px;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--light-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar i {
  font-size: 24px;
  color: var(--primary-color);
}

.author-info h4 {
  font-size: 1.1rem;
  color: var(--dark-blue);
  margin-bottom: 5px;
}

.author-info p {
  font-size: 0.9rem;
  color: var(--text-gray);
}

/* 下载部分 */
.download {
  padding: 100px 0;
  background-color: var(--dark-blue);
  position: relative;
  overflow: hidden;
}

.download::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: var(--secondary-color);
  border-radius: 50%;
  filter: blur(200px);
  opacity: 0.1;
  z-index: 0;
}

.download-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
}

.download-text {
  max-width: 500px;
}

.download-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-light);
}

.download-text p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: var(--light-blue);
  opacity: 0.9;
}

.download-features {
  margin-bottom: 30px;
}

.download-features li {
  margin-bottom: 15px;
  color: var(--light-blue);
  display: flex;
  align-items: center;
  gap: 10px;
}

.download-features li i {
  color: var(--secondary-color);
  font-size: 18px;
}

.download-image {
  max-width: 500px;
  position: relative;
}

.download-image img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

/* 页脚 */
.footer {
  background-color: var(--background-light);
  padding: 80px 0 30px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-blue);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--dark-blue);
  position: relative;
  padding-bottom: 10px;
}

.footer-column h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--primary-color);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-gray);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a i {
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 0.9rem;
  color: var(--text-gray);
}

/* 客服按钮 */
.support-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: var(--gradient-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 15px rgba(0, 98, 204, 0.3);
  z-index: 100;
  transition: var(--transition);
}

.support-btn:hover {
  transform: scale(1.1);
}

.support-btn i {
  font-size: 24px;
  color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 992px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-text {
    margin-bottom: 40px;
    max-width: 100%;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .download-content {
    flex-direction: column;
    text-align: center;
  }
  
  .download-text {
    margin-bottom: 40px;
    max-width: 100%;
  }
  
  .download-features li {
    justify-content: center;
  }
  
  .workflow-step {
    width: 45%;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    height: auto;
    padding: 15px 0;
  }
  
  .logo {
    margin-bottom: 15px;
  }
  
  .nav-menu {
    margin-bottom: 15px;
  }
  
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .workflow-step {
    width: 100%;
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
  
  .nav-menu {
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }
}