/* ==========================================================================
   自定义样式 - 基于参考图片的具体实现
   ========================================================================== */

/* ==========================================================================
   头部样式
   ========================================================================== */

.site-header {
  background: white;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-top {
  background: #f8f9fa;
  
  font-size: 14px;
  border-bottom: 1px solid #e9ecef;
}

.header-top-content {
  min-height: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.contact-info {
  display: flex;
  align-items: center;
  gap: 32px;
}

.contact-info span {
  display: flex;
  align-items: center;
  color: #6c757d;
  font-weight: 500;
}

.contact-info .phone {
  position: relative;
}

.contact-info .phone::before {
  content: "📞";
  margin-right: 8px;
  font-size: 16px;
}

.contact-info .email {
  position: relative;
}

.contact-info .email::before {
  content: "✉️";
  margin-right: 8px;
  font-size: 16px;
}

.contact-info a {
  color: #495057;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

.contact-info a:hover {
  color: #007bff;
  text-decoration: none;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #007bff;
  color: white;
  transition: all 0.3s ease;
  text-decoration: none;
  font-size: 16px;
}

.social-link:hover {
  background: #0056b3;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
  color: white;
}

/* 响应式设计 - 顶部联系信息 */
@media (max-width: 768px) {
  .header-top {
    padding: 8px 0;
    font-size: 13px;
  }
  
  .header-top-content {
    min-height: 40px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  
  .contact-info {
    gap: 20px;
    justify-content: center;
  }
  
  .contact-info .phone::before,
  .contact-info .email::before {
    font-size: 14px;
    margin-right: 6px;
  }
  
  .social-links {
    gap: 8px;
    justify-content: center;
  }
  
  .social-link {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .header-top-content {
    padding: 0 16px;
  }
  
  .contact-info {
    flex-direction: column;
    gap: 8px;
  }
  
  .contact-info span {
    font-size: 13px;
  }
}

.header-main {
  padding: var(--spacing-md) 0;
}

.site-branding .site-title {
  margin: 0;
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.site-branding .site-title a {
  color: var(--text-primary);
}

.site-description {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* 导航菜单 */
.main-navigation {
  position: relative;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger {
  display: flex;
  flex-direction: column;
  width: 24px;
  height: 18px;
  justify-content: space-between;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-xl);
}

.nav-menu li a {
  color: var(--text-primary);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item a {
  color: var(--primary-color);
}

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

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
  width: 100%;
}

/* 移动端导航 */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
    border-bottom: 1px solid var(--border-light);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu li a {
    display: block;
    padding: var(--spacing-md) 0;
  }
}

/* ==========================================================================
   面包屑导航
   ========================================================================== */

.breadcrumb {
  background: var(--background-secondary);
  padding: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
}

.breadcrumb-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.breadcrumb-list li {
  margin: 0;
}

.breadcrumb-list li:not(:last-child)::after {
  content: '/';
  margin: 0 var(--spacing-sm);
  color: var(--text-light);
}

.breadcrumb-list li.current {
  color: var(--text-secondary);
}

/* ==========================================================================
   Hero区域样式（基于参考图片）
   ========================================================================== */

.hero-section {
  background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 100%);
  padding: var(--spacing-4xl) 0;
  color: white;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  color: white;
 
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.hero-text h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-text p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

.hero-features {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero-features span {
  font-size: var(--font-size-sm);
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-illustration {
  text-align: center;
}

.hero-illustration img {
  max-width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text h1 {
    font-size: var(--font-size-3xl);
  }
}

/* ==========================================================================
   个人介绍区域
   ========================================================================== */

.personal-intro {
  padding: var(--spacing-4xl) 0;
  background: white;
}

.intro-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.personal-image {
  text-align: center;
}

.personal-image img {
  width: 250px;
  height: 250px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
  border: 4px solid var(--primary-color);
}

.intro-text h2 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.intro-text p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

.credentials {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.credentials span {
  background: var(--primary-light);
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

@media (max-width: 768px) {
  .intro-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* ==========================================================================
   服务网格样式
   ========================================================================== */

.services-overview {
  padding: var(--spacing-4xl) 0;
  background: var(--background-secondary);
}

.services-overview h2 {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  color: var(--text-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.service-card {
  background: white;
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-light);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: var(--primary-light);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon img {
  width: 40px;
  height: 40px;
}

.service-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ==========================================================================
   数据展示区域
   ========================================================================== */

.advantages-data {
  padding: var(--spacing-4xl) 0;
  background: var(--primary-color);
  color: white;
}

.advantages-data h2 {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  color: white;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
}

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

.data-number {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: white;
}

.data-label {
  font-size: var(--font-size-lg);
  opacity: 0.9;
}

/* ==========================================================================
   案例展示网格
   ========================================================================== */

.case-studies {
  padding: var(--spacing-4xl) 0;
  background: white;
}

.case-studies h2 {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.case-card {
  background: white;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.case-image {
  height: 200px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: var(--spacing-lg);
}

.case-content h3 {
  margin-bottom: var(--spacing-md);
}

.case-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.industry {
  background: var(--background-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
}

.results {
  color: var(--primary-color);
  font-weight: 500;
}

.read-more {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.read-more:hover {
  color: var(--primary-hover);
}

/* ==========================================================================
   客户logo墙
   ========================================================================== */

.client-logos {
  padding: var(--spacing-4xl) 0;
  background: var(--background-secondary);
}

.client-logos h2 {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.logos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-lg);
  align-items: center;
}

.logo-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: white;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
}

.logo-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.logo-item img {
  max-height: 60px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.logo-item:hover img {
  opacity: 1;
}

/* ==========================================================================
   最终CTA区域
   ========================================================================== */

.final-cta {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  text-align: center;
}

.cta-content h2 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  opacity: 0.9;
}

.btn-primary-large {
  padding: var(--spacing-lg) var(--spacing-3xl);
  font-size: var(--font-size-lg);
  background: white;
  color: var(--primary-color);
  border-radius: var(--border-radius-lg);
  font-weight: 600;
  transition: all var(--transition-normal);
}

.btn-primary-large:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ==========================================================================
   底部样式
   ========================================================================== */

.site-footer {
  background: var(--text-primary);
  color: white;
}

.footer-main {
  padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

.footer-title {
  color: white;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-lg);
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

.contact-item i {
  margin-right: var(--spacing-sm);
  color: var(--primary-color);
}

.contact-item a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.contact-item a:hover {
  color: white;
}

.footer-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-menu li {
  margin-bottom: var(--spacing-sm);
}

.footer-menu a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-menu a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg) 0;
}

.footer-bottom-content {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.separator {
  margin: 0 var(--spacing-sm);
}

/* ==========================================================================
   回到顶部按钮
   ========================================================================== */

.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

/* ==========================================================================
   响应式调整
   ========================================================================== */

@media (max-width: 768px) {
  .hero-section {
    padding: var(--spacing-2xl) 0;
  }

  .personal-intro,
  .services-overview,
  .advantages-data,
  .case-studies,
  .client-logos,
  .final-cta {
    padding: var(--spacing-2xl) 0;
  }

  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
}