body {
  margin: 0;
  font-family: 'Segoe UI', 'Microsoft YaHei', Arial, sans-serif;
  background: linear-gradient(135deg, #232526 0%, #414345 100%);
  color: #f3f3f3;
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.navbar {
  background: rgba(20, 20, 20, 0.95);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
}

.site-title {
  font-size: 1.6rem;
  font-weight: bold;
  letter-spacing: 2px;
  color: #00ffe7;
  text-shadow: 0 2px 8px #0ff;
}

.nav-menu a {
  color: #f3f3f3;
  text-decoration: none;
  margin-left: 2rem;
  font-size: 1rem;
  transition: color 0.2s;
  position: relative;
  padding: 0.5rem 0;
}

.nav-menu a:hover {
  color: #00ffe7;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: #00ffe7;
  transition: width 0.3s ease;
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-menu a:not(:last-child)::before {
  content: '|';
  position: absolute;
  right: -1rem;
  color: #666;
  font-size: 0.8rem;
}

.hero {
  background: linear-gradient(120deg, #0f2027 0%, #2c5364 100%);
  padding: 3rem 0 2rem 0;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
  border-radius: 0 0 32px 32px;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 120vw;
  height: 100%;
  background: radial-gradient(circle, #00ffe7 0%, transparent 70%);
  opacity: 0.08;
  transform: translateX(-50%);
  pointer-events: none;
}

.hero-content h1 {
  font-size: 2.6rem;
  color: #00ffe7;
  margin-bottom: 1rem;
  text-shadow: 0 2px 16px #0ff;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: #e0e0e0;
}

.hero-actions .btn-primary {
  background: linear-gradient(90deg, #00ffe7 0%, #007991 100%);
  color: #232526;
  padding: 0.8rem 2.2rem;
  border: none;
  border-radius: 32px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 2px 12px #00ffe7a0;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.hero-actions .btn-primary:hover {
  background: linear-gradient(90deg, #007991 0%, #00ffe7 100%);
  color: #fff;
}

.section {
  margin-bottom: 2.5rem;
}

.section h2 {
  font-size: 2rem;
  color: #00ffe7;
  margin-bottom: 1.5rem;
  text-align: center;
  letter-spacing: 1px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.services-section .card-grid {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
}

.services-section .card-grid .service-card:nth-child(4) {
  grid-column: 1;
}

.services-section .card-grid .service-card:nth-child(5) {
  grid-column: 3;
}

.process-section .card-grid {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
}

.process-section .card-grid .service-card:nth-child(4) {
  grid-column: 1;
}

.process-section .card-grid .service-card:nth-child(5) {
  grid-column: 3;
}

.service-card {
  background: rgba(30, 30, 30, 0.95);
  border-radius: 18px;
  box-shadow: 0 2px 16px #00ffe720, 0 1.5px 8px #0008;
  padding: 2rem 1.2rem 1.5rem 1.2rem;
  text-align: center;
  transition: transform 0.18s, box-shadow 0.18s;
  border: 1.5px solid #00ffe7a0;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 6px 32px #00ffe740, 0 2px 16px #000a;
}

.service-card h3 {
  color: #00ffe7;
  margin-bottom: 0.7rem;
  font-size: 1.25rem;
}

.service-card p {
  color: #e0e0e0;
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 0.8rem;
}

.about-section p {
  text-align: center;
  color: #e0e0e0;
  font-size: 1.1rem;
  line-height: 1.7;
}

.contact-section {
  background: rgba(20, 20, 20, 0.92);
  border-radius: 24px;
  box-shadow: 0 2px 16px #00ffe720, 0 1.5px 8px #0008;
  padding: 2.5rem 0 2rem 0;
}

.contact-form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  color: #00ffe7;
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

input, select, textarea {
  padding: 0.7rem 1rem;
  border-radius: 8px;
  border: 1.5px solid #00ffe7a0;
  background: #232526;
  color: #f3f3f3;
  font-size: 1rem;
  outline: none;
  transition: border 0.2s;
}

input:focus, select:focus, textarea:focus {
  border: 1.5px solid #00ffe7;
}

.btn-primary {
  background: linear-gradient(90deg, #00ffe7 0%, #007991 100%);
  color: #232526;
  padding: 0.7rem 2rem;
  border: none;
  border-radius: 32px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 2px 12px #00ffe7a0;
  transition: background 0.2s, color 0.2s;
}

.btn-primary:hover {
  background: linear-gradient(90deg, #007991 0%, #00ffe7 100%);
  color: #fff;
}

.footer {
  background: rgba(20, 20, 20, 0.98);
  text-align: center;
  padding: 1.2rem 0;
  color: #aaa;
  font-size: 0.95rem;
  border-radius: 24px 24px 0 0;
  margin-top: 2rem;
  box-shadow: 0 -2px 12px #00ffe720;
}

.advantages-section .card-grid,
.process-section .card-grid {
  margin-top: 1.2rem;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.faq-item {
  background: rgba(30, 30, 30, 0.95);
  border-radius: 14px;
  box-shadow: 0 1.5px 8px #00ffe720, 0 1px 4px #0006;
  padding: 1.2rem 1rem;
  border-left: 4px solid #00ffe7a0;
}

.faq-item h3 {
  margin: 0 0 0.5rem 0;
  color: #00ffe7;
  font-size: 1.1rem;
}

.faq-item p {
  margin: 0;
  color: #e0e0e0;
  font-size: 1rem;
}

.about-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
  justify-content: center;
}

.about-block {
  background: rgba(30, 30, 30, 0.95);
  border-radius: 14px;
  box-shadow: 0 1.5px 8px #00ffe720, 0 1px 4px #0006;
  padding: 1.2rem 1rem;
  min-width: 220px;
  max-width: 320px;
  flex: 1 1 220px;
}

.about-block h3 {
  color: #00ffe7;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.about-block ul {
  margin: 0.5rem 0 0 1.2rem;
  color: #e0e0e0;
  font-size: 1rem;
  padding-left: 0.5rem;
}

.contact-extra {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-block {
  background: rgba(30, 30, 30, 0.95);
  border-radius: 14px;
  box-shadow: 0 1.5px 8px #00ffe720, 0 1px 4px #0006;
  padding: 1.2rem 1rem;
  min-width: 180px;
  max-width: 260px;
  text-align: center;
}

.qrcode-img {
  margin: 0.5rem auto 0.5rem auto;
  border: 2px solid #00ffe7a0;
  background: #232526;
}

.hero-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
}

.hero-text {
  flex: 1 1 0;
  min-width: 220px;
}

.hero-image {
  flex: 1 1 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image img {
  max-width: 520px;
  width: 100%;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 4px 32px #0008;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 40px;
  width: 40px;
  margin-left: 1rem;
  z-index: 1200;
}

.nav-toggle-bar {
  display: block;
  width: 26px;
  height: 3px;
  background: #00ffe7;
  margin: 4px 0;
  border-radius: 2px;
  transition: all 0.3s;
}

@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .nav-menu {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    gap: 1.2rem;
    flex-wrap: wrap;
  }
  .nav-menu a {
    margin-left: 0;
    font-size: 0.9rem;
  }
  .nav-menu a::before {
    display: none;
  }
  .hero-content h1 {
    font-size: 2rem;
  }
  .section h2 {
    font-size: 1.4rem;
  }
  .card-grid {
    gap: 1rem;
  }
  .services-section .card-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .services-section .card-grid .service-card:nth-child(4),
  .services-section .card-grid .service-card:nth-child(5) {
    grid-column: span 1;
  }
  .process-section .card-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .process-section .card-grid .service-card:nth-child(4),
  .process-section .card-grid .service-card:nth-child(5) {
    grid-column: span 1;
  }
  .service-card {
    padding: 1.2rem 0.7rem 1rem 0.7rem;
  }
  .contact-section {
    padding: 1.2rem 0 1rem 0;
  }
}

@media (max-width: 480px) {
  .container {
    width: 98%;
    padding: 0 0.2rem;
  }
  .hero-content h1 {
    font-size: 1.3rem;
  }
  .section h2 {
    font-size: 1.1rem;
  }
  .service-card h3 {
    font-size: 1rem;
  }
  .service-card p {
    font-size: 0.95rem;
  }
}

@media (max-width: 900px) {
  .about-extra, .contact-extra {
    flex-direction: column;
    gap: 1.2rem;
    align-items: center;
  }
  .hero-flex {
    flex-direction: column;
    gap: 1.2rem;
  }
  .hero-image img {
    max-width: 90vw;
  }
  .hero-image {
    margin-top: 1.2rem;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: absolute;
    top: 60px;
    left: 0;
    width: 100vw;
    background: rgba(20, 20, 20, 0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem 0 1rem 0;
    box-shadow: 0 4px 24px #000a;
    z-index: 1100;
    display: none;
  }
  .nav-menu.nav-open {
    display: flex;
  }
  .nav-menu a {
    width: 100%;
    padding: 1rem 2rem;
    margin: 0;
    border-bottom: 1px solid #222;
    font-size: 1.1rem;
    position: relative;
  }
  .nav-menu a:last-child {
    border-bottom: none;
  }
  .nav-menu a::before {
    display: none;
  }
}