* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #0a0e1a;
  color: #e5e7eb;
  line-height: 1.8;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(74, 144, 217, 0.15);
}
.header-inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 72px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img {
  width: 40px; height: 40px; border-radius: 10px;
  object-fit: contain;
}
.logo span { font-size: 20px; font-weight: 700; color: #fff; }
.nav-links {
  display: flex; gap: 24px; align-items: center;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s;
}
.nav-links a:hover { color: #60a5fa; }
.city-tag {
  padding: 8px 20px; border-radius: 8px;
  background: rgba(74, 144, 217, 0.15);
  border: 1px solid rgba(74, 144, 217, 0.3);
  color: #60a5fa; font-size: 15px; font-weight: 600;
}

.breadcrumb {
  background: rgba(74, 144, 217, 0.05);
  padding: 10px 0;
  font-size: 14px;
  border-bottom: 1px solid rgba(74, 144, 217, 0.1);
}
.breadcrumb a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s;
}
.breadcrumb a:hover { color: #60a5fa; }
.breadcrumb-sep {
  margin: 0 8px;
  color: #6b7280;
}
.breadcrumb-current {
  color: #e5e7eb;
  font-weight: 500;
}

.hero {
  padding: 80px 0 60px;
  background: radial-gradient(ellipse at top right, rgba(139, 92, 246, 0.12), transparent 60%),
              radial-gradient(ellipse at bottom left, rgba(74, 144, 217, 0.1), transparent 50%);
}
.hero-badge {
  display: inline-block; padding: 8px 20px; border-radius: 20px;
  background: rgba(74, 144, 217, 0.12);
  border: 1px solid rgba(74, 144, 217, 0.25);
  color: #60a5fa; font-size: 14px; margin-bottom: 28px;
}
.hero-title {
  font-size: 52px; font-weight: 800; line-height: 1.25; color: #fff;
  margin-bottom: 24px;
}
.hero-title br { display: block; }
.hero-sub {
  font-size: 18px; color: #9ca3af; max-width: 680px; margin-bottom: 32px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.hero-tags span {
  padding: 8px 18px; border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: #d1d5db; font-size: 14px;
}
.hero-btn {
  display: inline-block; padding: 16px 40px; border-radius: 10px;
  background: linear-gradient(135deg, #4a90d9, #8b5cf6);
  color: #fff; font-size: 18px; font-weight: 700;
  text-decoration: none; transition: transform 0.2s;
}
.hero-btn:hover { transform: translateY(-2px); }

.section-title {
  display: flex; align-items: center; gap: 16px; margin-bottom: 12px;
}
.title-line {
  width: 4px; height: 28px; border-radius: 2px;
  background: linear-gradient(180deg, #4a90d9, #8b5cf6);
}
.section-title h2 { font-size: 32px; font-weight: 700; color: #fff; }
.section-title span {
  font-size: 14px; color: #6b7280; letter-spacing: 2px;
  text-transform: uppercase;
}
.section-sub {
  color: #9ca3af; font-size: 16px; margin-bottom: 40px; padding-left: 20px;
}

.about { padding: 70px 0; }
.about-content { font-size: 16px; color: #d1d5db; }
.about-content p { margin-bottom: 20px; }
.about-content strong { color: #60a5fa; }
.about-content a { color: #60a5fa; text-decoration: none; }

.services { padding: 70px 0; background: rgba(255,255,255,0.015); }
.service-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.service-card {
  padding: 28px 24px; border-radius: 12px;
  background: #111827; border: 1px solid rgba(255,255,255,0.06);
  transition: border-color 0.2s;
}
.service-card:hover { border-color: rgba(74, 144, 217, 0.4); }
.service-card h3 {
  font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px;
}
.service-card p { font-size: 14px; color: #9ca3af; line-height: 1.7; }

.solutions { padding: 70px 0; }
.solution-group { margin-bottom: 50px; }
.solution-group-title {
  font-size: 24px; font-weight: 700; color: #fff; margin-bottom: 6px;
}
.solution-group-sub {
  font-size: 15px; color: #60a5fa; margin-bottom: 24px;
}
.solution-items {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.solution-item {
  padding: 20px; border-radius: 10px;
  background: #111827; border: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}
.solution-item .item-icon {
  width: 48px; height: 48px; margin: 0 auto 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(74,144,217,0.2), rgba(139,92,246,0.2));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.solution-item h4 {
  font-size: 15px; font-weight: 600; color: #e5e7eb;
}

.pricing { padding: 70px 0; background: rgba(255,255,255,0.015); }
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
  max-width: 1000px; margin: 0 auto;
}
.pricing-card {
  background: #111827;
  border-radius: 16px;
  padding: 36px 28px;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  transition: transform 0.2s, border-color 0.2s;
}
.pricing-card:hover {
  transform: translateY(-4px);
  border-color: rgba(74, 144, 217, 0.3);
}
.pricing-featured {
  border: 2px solid #8b5cf6;
  transform: scale(1.03);
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #4a90d9, #8b5cf6);
  color: #fff;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.pricing-name {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: #fff;
}
.pricing-price {
  text-align: center;
  margin-bottom: 24px;
}
.price-num {
  font-size: 36px;
  font-weight: 800;
  color: #60a5fa;
}
.price-unit {
  font-size: 14px;
  color: #9ca3af;
  margin-left: 4px;
}
.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}
.pricing-features li {
  padding: 8px 0;
  font-size: 14px;
  color: #d1d5db;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.pricing-features li:before {
  content: "✓ ";
  color: #60a5fa;
  font-weight: bold;
}
.pricing-btn {
  display: block;
  text-align: center;
  background: linear-gradient(135deg, #4a90d9, #8b5cf6);
  color: #fff;
  padding: 12px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}
.pricing-btn:hover { opacity: 0.9; }
.pricing-note {
  text-align: center;
  color: #6b7280;
  font-size: 13px;
  margin-top: 24px;
}

.advantages { padding: 70px 0; }
.advantage-group { margin-bottom: 40px; }
.advantage-group h3 {
  font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 20px;
  padding-left: 16px; border-left: 3px solid #4a90d9;
}
.advantage-list { list-style: none; }
.advantage-list li {
  padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.05);
  color: #d1d5db; font-size: 15px;
}
.advantage-list li strong {
  color: #60a5fa; font-weight: 700; margin-right: 8px;
}
.contact-phone-inline {
  margin-top: 30px; padding: 20px; border-radius: 10px;
  background: rgba(74, 144, 217, 0.08);
  border: 1px solid rgba(74, 144, 217, 0.2);
  font-size: 18px; color: #e5e7eb;
}
.contact-phone-inline a { color: #60a5fa; font-weight: 700; text-decoration: none; }

.faq { padding: 70px 0; background: rgba(255,255,255,0.015); }
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.faq-question {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}
.faq-answer {
  color: #9ca3af;
  line-height: 1.8;
  font-size: 15px;
}

.contact { padding: 70px 0; }
.contact-card {
  padding: 50px; border-radius: 16px; text-align: center;
  background: linear-gradient(135deg, rgba(74,144,217,0.1), rgba(139,92,246,0.1));
  border: 1px solid rgba(74, 144, 217, 0.2);
}
.contact-card h2 {
  font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 12px;
}
.online-status {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 20px;
  background: rgba(34, 197, 94, 0.12);
  color: #4ade80; font-size: 14px; margin-bottom: 24px;
}
.online-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4ade80; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.contact-info p {
  font-size: 16px; color: #d1d5db; margin-bottom: 10px;
}
.contact-info a { color: #60a5fa; font-weight: 600; text-decoration: none; }

.footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-left p, .footer-right p {
  margin: 4px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}
.footer-left strong { color: #fff; }
.footer a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
}
.footer a:hover { color: #60a5fa; }

.hidden-keywords {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0);
  font-size: 0; line-height: 0;
}

.footer-cities {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  margin-bottom: 20px;
}
.footer-cities-title {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  margin-bottom: 12px;
}
.footer-cities-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.footer-cities-list a {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.3s;
}
.footer-cities-list a:hover {
  color: #fff;
}
.footer-cities-more {
  color: #818cf8 !important;
  font-weight: 600;
}

.city-list-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}
.city-list-hero h1 { font-size: 32px; margin-bottom: 16px; }
.city-list-hero p { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 8px; }
.city-list-hero a { color: #60a5fa; }
.city-list-section { padding: 40px 0; background: #f8fafc; min-height: 400px; }
.city-list-section h2 {
  font-size: 20px;
  color: #1e293b;
  margin: 30px 0 16px;
  padding-left: 12px;
  border-left: 4px solid #4f46e5;
}
.city-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}
.city-item {
  display: block;
  padding: 14px 16px;
  background: #fff;
  border-radius: 8px;
  color: #334155;
  text-decoration: none;
  font-size: 14px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid #e2e8f0;
}
.city-item:hover {
  background: #4f46e5;
  color: #fff;
  border-color: #4f46e5;
}

@media (max-width: 768px) {
  .hero-title { font-size: 32px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-items { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-featured { transform: none; }
  .contact-card { padding: 30px 20px; }
  .nav-links { display: none; }
  .footer-content { flex-direction: column; }
}