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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: #ffffff;
  color: #1e293b;
  line-height: 1.6;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e2e8f0;
  z-index: 1000;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: #1e293b;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #1e293b, #475569);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  padding: 0.625rem 1rem;
  color: #64748b;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: all 0.2s;
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: #3b82f6;
  background: #eff6ff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 1.5rem;
  height: 0.125rem;
  background: #334155;
  border-radius: 0.25rem;
  transition: all 0.3s;
}

.nav-cta {
  display: none;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: white;
  box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 12px -1px rgba(59, 130, 246, 0.4);
}

.btn-outline {
  background: white;
  color: #3b82f6;
  border: 2px solid #e2e8f0;
}

.btn-outline:hover {
  border-color: #3b82f6;
  background: #eff6ff;
}

.btn-white {
  background: white;
  color: #1e293b;
  border: 2px solid #e2e8f0;
}

.btn-white:hover {
  border-color: #3b82f6;
  background: #eff6ff;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Hero 区域 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 50%, #f0fdf4 100%);
  z-index: -2;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                    radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 2rem;
  color: #3b82f6;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: #3b82f6;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  color: #1e293b;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  color: #64748b;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

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

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
}

.stat-label {
  font-size: 0.875rem;
  color: #64748b;
}

.stat-divider {
  width: 1px;
  height: 2.5rem;
  background: #e2e8f0;
}

/* 通用 Section */
.section-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: #eff6ff;
  color: #3b82f6;
  border-radius: 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.section-header {
  margin-bottom: 3rem;
}

.section-header.center {
  text-align: center;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1rem;
  color: #64748b;
}

/* 服务卡片 */
.services-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  border-color: #3b82f6;
}

.service-icon {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  margin-bottom: 1.25rem;
  font-size: 1.75rem;
}

.service-icon.blue { background: #eff6ff; }
.service-icon.green { background: #f0fdf4; }
.service-icon.purple { background: #f5f3ff; }
.service-icon.orange { background: #fff7ed; }

.service-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.service-desc {
  color: #64748b;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  transition: gap 0.2s;
}

.service-link:hover {
  gap: 0.5rem;
}

/* 优势 */
.features-section {
  padding: 5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.feature-check {
  width: 1.5rem;
  height: 1.5rem;
  background: #ecfdf5;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #10b981;
  flex-shrink: 0;
  margin-top: 0.125rem;
  font-size: 0.875rem;
  font-weight: 700;
}

.feature-text h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.25rem;
}

.feature-text p {
  color: #64748b;
  font-size: 0.95rem;
}

.features-visual {
  position: relative;
}

.feature-image {
  position: relative;
  height: 400px;
  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
  border-radius: 1.5rem;
  overflow: hidden;
}

.feature-floating-card {
  position: absolute;
  padding: 1.25rem 1.75rem;
  background: white;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: float 6s ease-in-out infinite;
}

.card-1 {
  top: 20%;
  left: 10%;
}

.card-2 {
  bottom: 20%;
  right: 10%;
  animation-delay: 2s;
}

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

.floating-emoji {
  font-size: 2rem;
}

.feature-floating-card span {
  font-size: 0.875rem;
  color: #64748b;
  display: block;
}

.feature-floating-card strong {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  display: block;
}

.feature-circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  opacity: 0.1;
}

.circle-1 {
  width: 150px;
  height: 150px;
  top: 10%;
  right: 20%;
}

.circle-2 {
  width: 100px;
  height: 100px;
  bottom: 30%;
  left: 15%;
}

.circle-3 {
  width: 75px;
  height: 75px;
  top: 60%;
  right: 30%;
}

/* 客户评价 */
.testimonials-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.testimonial-stars {
  font-size: 1rem;
  margin-bottom: 1rem;
  letter-spacing: 0.125rem;
}

.testimonial-text {
  color: #475569;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author-avatar {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 1rem;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-weight: 600;
  color: #1e293b;
}

.author-title {
  font-size: 0.875rem;
  color: #64748b;
}

/* CTA */
.cta-section {
  position: relative;
  padding: 6rem 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  z-index: -1;
}

.cta-content {
  text-align: center;
  color: white;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.125rem;
  color: #cbd5e1;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
}

.cta-phone {
  font-size: 1.25rem;
  font-weight: 600;
  color: #3b82f6;
}

/* 页脚 */
.footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-desc {
  color: #94a3b8;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #94a3b8;
  font-size: 0.95rem;
}

.footer-links h4 {
  color: white;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #3b82f6;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  font-size: 0.875rem;
  color: #64748b;
}

/* 页面头部 (about/services/contact) */
.page-header {
  padding-top: 6rem;
  padding-bottom: 3rem;
  background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 0.75rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  font-size: 0.95rem;
  color: #64748b;
}

.breadcrumb a {
  color: #3b82f6;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* About 页面 */
.about-intro {
  padding: 5rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content p {
  color: #64748b;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.about-stats-row {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.about-stat {
  text-align: center;
}

.about-stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: #3b82f6;
}

.about-stat-label {
  font-size: 0.875rem;
  color: #64748b;
}

.about-visual {
  position: relative;
}

.about-image {
  position: relative;
  height: 400px;
  background: linear-gradient(135deg, #eff6ff, #f5f3ff);
  border-radius: 1.5rem;
  overflow: hidden;
}

.about-circle {
  position: absolute;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  opacity: 0.1;
}

.about-circle.circle-1 {
  width: 120px;
  height: 120px;
  top: 10%;
  right: 15%;
}

.about-circle.circle-2 {
  width: 80px;
  height: 80px;
  bottom: 20%;
  left: 10%;
}

.about-card {
  position: absolute;
  padding: 1rem 1.5rem;
  background: white;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: float 6s ease-in-out infinite;
}

.about-card.card-1 {
  top: 25%;
  left: 8%;
}

.about-card.card-2 {
  bottom: 25%;
  right: 8%;
  animation-delay: 2s;
}

.about-card-emoji {
  font-size: 1.75rem;
}

.about-card span {
  font-size: 0.95rem;
  color: #475569;
  font-weight: 500;
}

/* 价值观 */
.values-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.value-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  text-align: center;
  transition: all 0.3s;
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.value-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.value-card p {
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* 团队 */
.team-section {
  padding: 5rem 0;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.team-card {
  background: white;
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  text-align: center;
  transition: all 0.3s;
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.team-avatar {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.team-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.25rem;
}

.team-role {
  display: block;
  color: #3b82f6;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.team-desc {
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 时间线 */
.timeline-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e2e8f0;
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
  padding-left: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.65rem;
  top: 0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  background: #3b82f6;
  border-radius: 50%;
  border: 3px solid #eff6ff;
}

.timeline-year {
  font-size: 1.5rem;
  font-weight: 700;
  color: #3b82f6;
  margin-bottom: 0.25rem;
}

.timeline-content h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.25rem;
}

.timeline-content p {
  color: #64748b;
  font-size: 0.95rem;
}

/* Services 详情页 */
.service-detail-section {
  padding: 5rem 0;
}

.service-detail-section.alt {
  background: #f8fafc;
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.service-detail-grid.reverse .service-detail-content {
  order: 2;
}

.service-detail-grid.reverse .service-detail-visual {
  order: 1;
}

.service-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.service-tag.blue { background: #eff6ff; color: #3b82f6; }
.service-tag.green { background: #f0fdf4; color: #22c55e; }
.service-tag.purple { background: #f5f3ff; color: #8b5cf6; }
.service-tag.orange { background: #fff7ed; color: #f97316; }

.service-detail-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 0.75rem;
}

.service-detail-desc {
  color: #64748b;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.service-features {
  margin-bottom: 2rem;
}

.service-features h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.75rem;
}

.service-features ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-features li {
  color: #475569;
  font-size: 0.95rem;
}

.service-price {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: #f0fdf4;
  border-radius: 0.75rem;
  border: 1px solid #dcfce7;
}

.price-label {
  color: #64748b;
  font-size: 0.95rem;
}

.price-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #16a34a;
}

.service-detail-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-icon-large {
  width: 12rem;
  height: 12rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2rem;
  font-size: 4rem;
}

.service-icon-large.blue { background: #eff6ff; }
.service-icon-large.green { background: #f0fdf4; }
.service-icon-large.purple { background: #f5f3ff; }
.service-icon-large.orange { background: #fff7ed; }

/* Contact 页面 */
.contact-section {
  padding: 5rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info .section-desc {
  margin-bottom: 2rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-method {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-method-icon {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eff6ff;
  border-radius: 0.75rem;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-method-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.25rem;
}

.contact-method-content p {
  color: #3b82f6;
  font-weight: 600;
  font-size: 1.1rem;
}

.contact-method-content span {
  color: #94a3b8;
  font-size: 0.875rem;
}

.contact-form-wrapper {
  background: white;
  padding: 2.5rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: #475569;
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: #1e293b;
  transition: border-color 0.2s;
  background: #f8fafc;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
  background: white;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* FAQ */
.faq-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: white;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  transition: background 0.2s;
}

.faq-question:hover {
  background: #f8fafc;
}

.faq-question h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
}

.faq-arrow {
  color: #94a3b8;
  font-size: 0.875rem;
  transition: transform 0.3s;
}

.faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 1.5rem 1.25rem;
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* 服务流程 */
.service-flow-section {
  padding: 5rem 0;
  background: #f8fafc;
}

.flow-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1.5rem;
}

.flow-step {
  flex: 1;
  max-width: 260px;
  text-align: center;
  background: white;
  padding: 2rem 1.5rem;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  transition: all 0.3s;
  position: relative;
}

.flow-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  border-color: #3b82f6;
}

.flow-step-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: #94a3b8;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.flow-step-emoji {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.flow-step h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
}

.flow-step p {
  color: #64748b;
  font-size: 0.9rem;
  line-height: 1.7;
}

.flow-arrow {
  font-size: 1.5rem;
  color: #cbd5e1;
  font-weight: 700;
  padding-top: 2.5rem;
  flex-shrink: 0;
}

/* 企业生命周期 */
.lifecycle-section {
  padding: 5rem 0;
}

.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.lifecycle-card {
  background: white;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.lifecycle-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.lifecycle-card:nth-child(1)::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.lifecycle-card:nth-child(2)::before { background: linear-gradient(90deg, #22c55e, #4ade80); }
.lifecycle-card:nth-child(3)::before { background: linear-gradient(90deg, #f97316, #fb923c); }
.lifecycle-card:nth-child(4)::before { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }

.lifecycle-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.lifecycle-emoji {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.lifecycle-stage {
  font-size: 0.875rem;
  font-weight: 700;
  color: #3b82f6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.lifecycle-card:nth-child(1) .lifecycle-stage { color: #3b82f6; }
.lifecycle-card:nth-child(2) .lifecycle-stage { color: #22c55e; }
.lifecycle-card:nth-child(3) .lifecycle-stage { color: #f97316; }
.lifecycle-card:nth-child(4) .lifecycle-stage { color: #8b5cf6; }

.lifecycle-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.75rem;
}

.lifecycle-card p {
  color: #64748b;
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.lifecycle-services {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  text-align: left;
}

.lifecycle-services a {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: #475569;
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.25rem 0;
  transition: color 0.2s;
}

.lifecycle-services a:hover {
  color: #3b82f6;
}

/* 知识库页面 */
.knowledge-section {
  padding: 5rem 0;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.article-card {
  background: white;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  overflow: hidden;
  transition: all 0.3s;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.article-cover {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
}

.article-cover.blue { background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.article-cover.green { background: linear-gradient(135deg, #f0fdf4, #dcfce7); }
.article-cover.purple { background: linear-gradient(135deg, #f5f3ff, #ede9fe); }
.article-cover.orange { background: linear-gradient(135deg, #fff7ed, #fed7aa); }
.article-cover.red { background: linear-gradient(135deg, #fef2f2, #fecaca); }

.article-body {
  padding: 1.5rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: #94a3b8;
}

.article-tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  background: #eff6ff;
  color: #3b82f6;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.article-tag.green { background: #f0fdf4; color: #22c55e; }
.article-tag.purple { background: #f5f3ff; color: #8b5cf6; }
.article-tag.orange { background: #fff7ed; color: #f97316; }

.article-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.article-body p {
  color: #64748b;
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: #3b82f6;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: gap 0.2s;
}

.article-link:hover {
  gap: 0.5rem;
}

/* 文章详情页 */
.article-page {
  padding: 3rem 0 5rem;
}

.article-page-header {
  text-align: center;
  margin-bottom: 3rem;
}

.article-page-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: #eff6ff;
  color: #3b82f6;
  border-radius: 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.article-page-tag.green { background: #f0fdf4; color: #22c55e; }
.article-page-tag.purple { background: #f5f3ff; color: #8b5cf6; }
.article-page-tag.orange { background: #fff7ed; color: #f97316; }

.article-page h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 1rem;
  line-height: 1.4;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.article-page-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  color: #94a3b8;
  font-size: 0.9rem;
}

.article-page-content {
  max-width: 780px;
  margin: 0 auto;
}

.article-page-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e293b;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

.article-page-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #1e293b;
  margin: 2rem 0 0.75rem;
}

.article-page-content p {
  color: #475569;
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.25rem;
}

.article-page-content ul,
.article-page-content ol {
  color: #475569;
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.article-page-content li {
  margin-bottom: 0.5rem;
}

.article-page-content strong {
  color: #1e293b;
}

.article-page-content .highlight-box {
  background: #f0fdf4;
  border: 1px solid #dcfce7;
  border-left: 4px solid #22c55e;
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.8;
}

.article-page-content .warning-box {
  background: #fffbeb;
  border: 1px solid #fef3c7;
  border-left: 4px solid #f59e0b;
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  color: #92400e;
  font-size: 0.95rem;
  line-height: 1.8;
}

.article-page-content .info-box {
  background: #eff6ff;
  border: 1px solid #dbeafe;
  border-left: 4px solid #3b82f6;
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  color: #1e40af;
  font-size: 0.95rem;
  line-height: 1.8;
}

.article-page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.article-page-content table th,
.article-page-content table td {
  padding: 0.75rem 1rem;
  border: 1px solid #e2e8f0;
  text-align: left;
}

.article-page-content table th {
  background: #f8fafc;
  font-weight: 600;
  color: #1e293b;
}

.article-page-content table td {
  color: #475569;
}

.article-nav-bottom {
  max-width: 780px;
  margin: 3rem auto 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.article-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  color: #3b82f6;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.article-nav-link:hover {
  border-color: #3b82f6;
  background: #eff6ff;
}

@media (max-width: 768px) {
  .article-page h1 {
    font-size: 1.75rem;
  }

  .article-nav-bottom {
    flex-direction: column;
  }

  .article-page-content table {
    font-size: 0.85rem;
  }

  .article-page-content table th,
  .article-page-content table td {
    padding: 0.5rem 0.75rem;
  }
}

/* 导航站 index-nav 样式 */
.tagline {
  color: #475569;
  margin-top: 0.25rem;
  font-size: 0.9rem;
}

.category {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  margin-bottom: 2rem;
  overflow: hidden;
  border: 1px solid #e2e8f0;
}

.category h2 {
  background: #f1f5f9;
  padding: 1rem 1.5rem;
  font-size: 1.35rem;
  font-weight: 600;
  border-bottom: 1px solid #e2e8f0;
}

.site-list {
  display: flex;
  flex-direction: column;
}

.site-item {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #f1f5f9;
  text-decoration: none;
  color: #0f172a;
  transition: background 0.15s ease;
}

.site-item:last-child {
  border-bottom: none;
}

.site-item:hover {
  background: #f8fafc;
}

.site-arrow {
  color: #94a3b8;
  font-size: 1.2rem;
  margin-left: 0.75rem;
}

.loading {
  text-align: center;
  padding: 3rem;
  color: #64748b;
}

.ad-placeholder {
  margin: 2rem 0;
  text-align: center;
  font-size: 0.7rem;
  color: #94a3b8;
  background: #f1f5f9;
  border-radius: 0.75rem;
  padding: 0.75rem;
}

/* 浮动组件 */
.float-widget {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 9999;
}

.float-phone,
.float-consult,
.float-top {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 1.5rem;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s;
}

.float-phone {
  background: #22c55e;
  color: white;
}

.float-phone:hover {
  background: #16a34a;
  transform: scale(1.1);
}

.float-consult {
  background: #3b82f6;
  color: white;
}

.float-consult:hover {
  background: #2563eb;
  transform: scale(1.1);
}

.float-top {
  background: white;
  color: #475569;
  font-size: 1.3rem;
  font-weight: 700;
  display: none;
  border: 1px solid #e2e8f0;
}

.float-top:hover {
  background: #f1f5f9;
  color: #3b82f6;
  transform: scale(1.1);
}

.float-widget .float-phone {
  animation: floatBounce 3s ease-in-out infinite;
}

@keyframes floatBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@media (max-width: 1024px) {
  .features-grid,
  .about-grid,
  .service-detail-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .service-detail-grid.reverse .service-detail-content,
  .service-detail-grid.reverse .service-detail-visual {
    order: unset;
  }

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

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

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

  .flow-arrow {
    display: none;
  }

  .flow-steps {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .flow-step {
    flex: 1 1 calc(50% - 0.5rem);
    max-width: none;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .stat-divider {
    width: 2.5rem;
    height: 1px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions {
    flex-direction: column;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 1rem;
    gap: 0.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s;
    pointer-events: none;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
  }

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

  .about-stats-row {
    flex-direction: column;
    gap: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .about-image,
  .feature-image {
    height: 300px;
  }
}

@media (max-width: 640px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .cta-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

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

  .flow-step {
    flex: 1 1 100%;
  }

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