/* ============================================
   心商科技官网 - 页面样式
   设计风格：高端、简洁、大气、科技感
   ============================================ */

/* ============================================
   顶部导航栏
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.header.scrolled {
  height: var(--header-height-scrolled);
  border-bottom-color: var(--border-lighter);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--text-primary);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

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

.nav-item.active .nav-link {
  color: var(--primary-color);
  font-weight: 600;
}

.nav-link .arrow {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link .arrow {
  transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 180px;
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 100;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: 10px 16px;
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.dropdown-item:hover {
  background-color: var(--primary-bg);
  color: var(--primary-color);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.menu-toggle:hover {
  background-color: var(--bg-hover);
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  position: relative;
  transition: all var(--transition-base);
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-base);
}

.menu-toggle span::before {
  top: -7px;
}

.menu-toggle span::after {
  top: 7px;
}

.menu-toggle.active span {
  background-color: transparent;
}

.menu-toggle.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle.active span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-white);
  z-index: 99;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  padding: 20px 0;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-nav-item {
  border-bottom: 1px solid var(--border-lighter);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  background-color: var(--bg-hover);
  color: var(--primary-color);
}

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

.mobile-dropdown {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.mobile-dropdown.active {
  max-height: 500px;
}

.mobile-dropdown-item {
  display: block;
  padding: 12px 24px 12px 48px;
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.mobile-dropdown-item:hover {
  background-color: var(--primary-bg);
  color: var(--primary-color);
}

/* ============================================
   首页 Banner 轮播
   ============================================ */
.banner {
  margin-top: var(--header-height);
  position: relative;
  height: 600px;
  overflow: hidden;
}

.banner .carousel {
  height: 100%;
}

.banner-slide {
  height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.banner-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(22, 119, 255, 0.9) 0%, rgba(9, 88, 217, 0.95) 100%);
  z-index: 1;
}

.banner-slide.bg-2::before {
  background: linear-gradient(135deg, rgba(114, 46, 209, 0.9) 0%, rgba(22, 119, 255, 0.95) 100%);
}

.banner-slide.bg-3::before {
  background: linear-gradient(135deg, rgba(19, 194, 194, 0.9) 0%, rgba(22, 119, 255, 0.95) 100%);
}

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

.banner-content {
  max-width: 600px;
  color: #fff;
}

.banner-tag {
  display: inline-block;
  padding: 6px 16px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  font-size: var(--font-size-sm);
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.banner-title {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #fff;
}

.banner-desc {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: 32px;
  opacity: 0.9;
  color: rgba(255, 255, 255, 0.9);
}

.banner-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.banner-decoration {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
}

.banner-decoration::before,
.banner-decoration::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.banner-decoration::before {
  width: 400px;
  height: 400px;
  top: 50px;
  left: 50px;
}

.banner-decoration::after {
  width: 300px;
  height: 300px;
  top: 100px;
  left: 100px;
}

/* ============================================
   通用 Section 区块
   ============================================ */
.section {
  padding: 100px 0;
}

.section-gray {
  background-color: var(--bg-gray);
}

.section-gradient {
  background: linear-gradient(180deg, #fff 0%, #f0f7ff 50%, #fff 100%);
}

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

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background-color: var(--primary-bg);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: 16px;
}

.section-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================
   解决方案卡片
   ============================================ */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  transition: all var(--transition-base);
  border: 1px solid var(--border-lighter);
  position: relative;
  overflow: hidden;
}

.solution-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.solution-card:hover::before {
  transform: scaleX(1);
}

.solution-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-bg) 0%, #bae0ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--primary-color);
  transition: all var(--transition-base);
}

.solution-card:hover .solution-icon {
  background: var(--primary-gradient);
  color: #fff;
  transform: scale(1.1);
}

.solution-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.solution-desc {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-weight: 500;
  font-size: var(--font-size-base);
}

.solution-link:hover {
  gap: 10px;
}

.solution-link .arrow {
  transition: transform var(--transition-fast);
}

.solution-card:hover .solution-link .arrow {
  transform: translateX(4px);
}

/* ============================================
   案例卡片
   ============================================ */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--border-lighter);
}

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

.case-img {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.case-img::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
}

.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-content {
  padding: 24px;
}

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--primary-bg);
  color: var(--primary-color);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  margin-bottom: 12px;
}

.case-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.case-desc {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

.case-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-lighter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.case-client {
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-client-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.case-client-name {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ============================================
   文章卡片
   ============================================ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  border: 1px solid var(--border-lighter);
  cursor: pointer;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.article-img {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.article-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.article-category {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  backdrop-filter: blur(10px);
}

.article-content {
  padding: 24px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.5;
  transition: color var(--transition-fast);
}

.article-card:hover .article-title {
  color: var(--primary-color);
}

.article-summary {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   FAQ 折叠面板
   ============================================ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  border: 1px solid var(--border-lighter);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: var(--primary-color);
}

.faq-item.active {
  border-color: var(--primary-color);
  box-shadow: 0 4px 20px rgba(22, 119, 255, 0.1);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background-color: var(--bg-hover);
}

.faq-item.active .faq-question {
  background-color: var(--primary-bg);
}

.faq-question-text {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 16px;
  flex-shrink: 0;
  margin-left: 16px;
  transition: all var(--transition-base);
}

.faq-item.active .faq-icon {
  background-color: var(--primary-color);
  color: #fff;
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

/* ============================================
   团队成员卡片
   ============================================ */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--border-lighter);
}

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

.team-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 20px;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 36px;
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-name {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.team-position {
  font-size: var(--font-size-base);
  color: var(--primary-color);
  margin-bottom: 12px;
  font-weight: 500;
}

.team-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.team-social {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
}

.team-social-item {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.team-social-item:hover {
  background-color: var(--primary-color);
  color: #fff;
  transform: translateY(-2px);
}

/* ============================================
   表单预约
   ============================================ */
.appointment-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.appointment-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  border-radius: 50%;
}

.appointment-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
  border-radius: 50%;
}

.appointment-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.appointment-info {
  color: #fff;
}

.appointment-info .section-tag {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.appointment-info .section-title {
  color: #fff;
}

.appointment-info .section-desc {
  color: rgba(255, 255, 255, 0.85);
  margin-left: 0;
  margin-bottom: 32px;
}

.appointment-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.appointment-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-size: var(--font-size-base);
}

.appointment-feature-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.appointment-form-wrapper {
  background-color: #fff;
  border-radius: var(--radius-2xl);
  padding: 40px;
  box-shadow: var(--shadow-xl);
}

.appointment-form-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.appointment-form-desc {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: var(--font-size-base);
}

.appointment-form-wrapper .form-input,
.appointment-form-wrapper .form-select,
.appointment-form-wrapper .form-textarea {
  border-color: var(--border-lighter);
  background-color: var(--bg-gray);
}

.appointment-form-wrapper .form-input:focus,
.appointment-form-wrapper .form-select:focus,
.appointment-form-wrapper .form-textarea:focus {
  background-color: #fff;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding-top: 80px;
  padding-bottom: 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
}

.footer-logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #fff;
}

.footer-desc {
  font-size: var(--font-size-base);
  line-height: 1.8;
  margin-bottom: 24px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

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

.footer-link {
  color: #94a3b8;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: #64748b;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-link {
  font-size: var(--font-size-sm);
  color: #64748b;
  transition: color var(--transition-fast);
}

.footer-bottom-link:hover {
  color: #fff;
}

/* ============================================
   面包屑导航
   ============================================ */
.breadcrumb-section {
  margin-top: var(--header-height);
  padding: 40px 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.breadcrumb-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
  border-radius: 50%;
}

.breadcrumb-content {
  position: relative;
  z-index: 1;
}

.page-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-base);
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-link {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.breadcrumb-link:hover {
  color: #fff;
}

.breadcrumb-separator {
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
}

.breadcrumb-current {
  color: #fff;
  font-weight: 500;
}

/* ============================================
   数据统计区块
   ============================================ */
.stats-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 1;
}

.stat-item {
  text-align: center;
  color: #fff;
}

.stat-number {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 8px;
}

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

/* ============================================
   合作伙伴/客户 Logo
   ============================================ */
.clients-section {
  padding: 60px 0;
  background-color: var(--bg-gray);
}

.clients-title {
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--font-size-base);
  margin-bottom: 32px;
}

.clients-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px 60px;
}

.client-logo {
  width: 120px;
  height: 50px;
  background-color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--text-tertiary);
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  filter: grayscale(100%);
  opacity: 0.7;
}

.client-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  box-shadow: var(--shadow-sm);
}

/* ============================================
   头部联系方式
   ============================================ */
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.header-phone-text {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}

.header-phone-number {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--primary-color);
}

/* ============================================
   新版页脚（首页风格）
   ============================================ */
.footer-new {
  background: #0f172a;
  color: rgba(255, 255, 255, 0.55);
  padding: 96px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand-title {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 360px;
}

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.footer-link-item {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  transition: all 0.2s ease;
}

.footer-link-item:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-new .footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.3);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-new .footer-bottom a {
  color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-new .footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   响应式设计
   ============================================ */

/* 平板设备 */
@media (max-width: 992px) {
  .banner {
    height: 500px;
  }
  
  .banner-slide {
    height: 500px;
  }
  
  .solutions-grid,
  .cases-grid,
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .appointment-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-brand {
    grid-column: span 2;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* 移动端设备 */
@media (max-width: 768px) {
  .nav,
  .header-actions .btn {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .banner {
    height: 450px;
  }
  
  .banner-slide {
    height: 450px;
  }
  
  .banner-title {
    font-size: 32px;
  }
  
  .banner-desc {
    font-size: var(--font-size-base);
  }
  
  .banner-decoration {
    display: none;
  }
  
  .solutions-grid,
  .cases-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .team-card {
    padding: 24px 16px;
  }
  
  .team-avatar {
    width: 70px;
    height: 70px;
    font-size: 24px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 26px;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .appointment-form-wrapper {
    padding: 24px;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .stat-number {
    font-size: 36px;
  }
  
  .stat-label {
    font-size: var(--font-size-sm);
  }
  
  .clients-grid {
    gap: 20px 30px;
  }
  
  .client-logo {
    width: 100px;
    height: 40px;
    font-size: var(--font-size-xs);
  }
}

/* 小屏移动端 */
@media (max-width: 480px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .banner-actions {
    flex-direction: column;
  }
  
  .banner-actions .btn {
    width: 100%;
  }
  
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}