/* 现代化样式变量 */
:root {
  --primary: #2563eb;
  --accent: #f59e0b;
  --dark-bg: #0f172a;
  --dark-surface: #1e293b;
  --dark-border: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --border-radius: 12px;
}

/* 全局样式 */
body {
  font-family: 'Inter', sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
}

/* 现代化导航栏 */
.header-section {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--dark-border);
}

.header-section .brand-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.header-section .custom-nav a {
  color: var(--text-secondary);
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.header-section .custom-nav a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* 现代化英雄区域 */
.hero-section-version3 {
  min-height: 100vh;
  background: var(--gradient-primary);
  position: relative;
}

.hero-section-version3 .title-text {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-section-version3 .subtitle-text {
  font-size: 1.25rem;
  color: var(--text-secondary);
}

/* 现代化卡片 */
.ringle-content, .hero-v3-content {
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}

.ringle-content:hover, .hero-v3-content:hover {
  transform: translateY(-5px);
}

/* 现代化标签 */
.tag-item-special {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
  margin: 0.25rem;
}

.tag-item-special:hover {
  background: rgba(245, 158, 11, 0.2);
  transform: translateY(-2px);
}

.tag-item-black {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--dark-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-block;
  margin: 0.25rem;
}

.tag-item-black:hover {
  background: rgba(15, 23, 42, 0.9);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* 现代化关于我们 */
.about-section-version3 {
  background: var(--dark-surface);
  padding: 6rem 0;
}

.about-content-v3 .stitle {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-content-v3 p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 现代化统计 */
.global-counting {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.counting-item {
  text-align: center;
  padding: 2rem;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.counting-item:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.counting-item h6 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
}

.counting-item .pra-clr {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* 现代化服务区域 */
.service-section {
  background: var(--dark-bg);
  padding: 6rem 0;
}

.service-section .stitle {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 4rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 现代化手风琴 */
.accordion-single {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.accordion-single:hover {
  border-color: var(--accent);
}

.accordion-single .accordion-btn {
  padding: 2rem;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.accordion-single .mtitle {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.accordion-single .pras {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 现代化项目统计 */
.project-count {
  background: var(--gradient-primary);
  padding: 4rem 0;
}

.project-count-item h2 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.project-count-item .pra-clr {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* 现代化案例研究 */
.case-study-section {
  background: var(--dark-surface);
  padding: 6rem 0;
}

.case-study-section .stitle {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 4rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 现代化标签页 */
.onhover-tabbing-wrap .nav-link {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.onhover-tabbing-wrap .nav-link:hover,
.onhover-tabbing-wrap .nav-link.active {
  background: rgba(37, 99, 235, 0.1);
  border-color: var(--primary);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.onhover-tabbing-wrap .nav-link .devs {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.onhover-tabbing-wrap .nav-link p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 现代化客户评价 */
.testimonial-version02-section {
  background: var(--dark-bg);
  padding: 6rem 0;
}

.testimonial-version02-section .pj {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  text-align: center;
  margin-bottom: 3rem;
}

.testimonial-zero-oneitem {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  padding: 2.5rem;
  margin: 1rem;
  transition: all 0.3s ease;
}

.testimonial-zero-oneitem:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.testimonial-zero-oneitem .ratting-area i {
  color: var(--accent);
}

.testimonial-zero-oneitem p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
}

.testimonial-zero-oneitem .desig h6 {
  color: var(--text-primary);
  font-weight: 600;
}

.testimonial-zero-oneitem .desig span {
  color: var(--accent);
  font-size: 0.875rem;
}

/* 现代化分页器 */
.testimonial-pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
}

.pagination-number {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--dark-border);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pagination-number:hover,
.pagination-number.active {
  background: var(--accent);
  color: var(--dark-bg);
  border-color: var(--accent);
}

/* 现代化页脚 */
.footer-version-three {
  background: var(--dark-surface);
  border-top: 1px solid var(--dark-border);
}

.footer-widget .footer-title {
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 2rem;
}

.footer-widget .link-footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
}

.footer-widget .link-footer a:hover {
  color: var(--accent);
  transform: translateX(5px);
}

.footer-widget .contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--dark-border);
}

.footer-widget .contact-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-widget .contact-icon i,
.footer-widget .contact-icon svg {
  color: white;
  font-size: 1rem;
}

.footer-widget .contact-details strong {
  color: var(--text-primary);
  font-weight: 600;
  display: block;
  margin-bottom: 0.25rem;
}

.footer-widget .contact-details span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-bottom-version-two {
  background: var(--dark-bg);
  border-top: 1px solid var(--dark-border);
  padding: 2rem 0;
}

.footer-bottom-version-two p,
.footer-bottom-version-two a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-bottom-version-two a:hover {
  color: var(--accent);
}

/* 现代化浮动按钮 */
.floating-contact {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-button {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  animation: float 3s ease-in-out infinite;
}

.contact-telegram {
  background: var(--primary);
}

.contact-whatsapp {
  background: var(--success);
}

.contact-button:hover {
  transform: scale(1.1);
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* 现代化模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--dark-surface);
  border-radius: var(--border-radius);
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--dark-border);
}

.modal-header h3 {
  color: var(--text-primary);
  font-weight: 700;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.modal-body {
  margin-bottom: 2rem;
}

.modal-body h4 {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 1rem;
}

.modal-body p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.modal-body ul {
  list-style: none;
  padding: 0;
}

.modal-body li {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.modal-body li::before {
  content: '•';
  color: var(--accent);
  position: absolute;
  left: 0;
}

.modal-footer {
  text-align: center;
}

.modal-redirect-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-redirect-btn:hover {
  background: var(--secondary);
  transform: translateY(-2px);
}

/* 现代化滚动按钮 */
#progress {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  width: 50px;
  height: 50px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: var(--shadow-lg);
}

#progress.show {
  opacity: 1;
  visibility: visible;
}

#progress:hover {
  background: var(--secondary);
  transform: translateY(-2px);
}

#progress i {
  color: white;
  font-size: 1.25rem;
}

/* 响应式设计 */
@media (max-width: 991px) {
  .hero-section-version3 .title-text {
    font-size: 2.5rem;
  }
  
  .about-content-v3 .stitle {
    font-size: 2rem;
  }
  
  .service-section .stitle {
    font-size: 2rem;
  }
  
  .case-study-section .stitle {
    font-size: 2rem;
  }
  
  .global-counting {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
  }
  
  .counting-item h6 {
    font-size: 2rem;
  }
}

@media (max-width: 767px) {
  .hero-section-version3 .title-text {
    font-size: 2rem;
  }
  
  .ringle-content, .hero-v3-content {
    padding: 1.5rem;
  }
  
  .accordion-single .accordion-btn {
    padding: 1.5rem;
  }
  
  .project-count-item h2 {
    font-size: 2rem;
  }
  
  .floating-contact {
    bottom: 1rem;
    right: 1rem;
  }
  
  .contact-button {
    width: 50px;
    height: 50px;
  }
  
  #progress {
    bottom: 1rem;
    left: 1rem;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 575px) {
  .hero-section-version3 .title-text {
    font-size: 1.75rem;
  }
  
  .about-content-v3 .stitle {
    font-size: 1.75rem;
  }
  
  .service-section .stitle {
    font-size: 1.75rem;
  }
  
  .case-study-section .stitle {
    font-size: 1.75rem;
  }
  
  .global-counting {
    grid-template-columns: 1fr;
  }
  
  .testimonial-pagination {
    flex-wrap: wrap;
  }
  
  .pagination-number {
    width: 35px;
    height: 35px;
    font-size: 0.875rem;
  }
}