.hero-section {
  height: auto;
  padding: 2rem 1rem;
  text-align: center;
  grid-template-columns: 1fr;
  min-height: auto;
  padding-top: 80px;
  gap: 2rem;
}

.hero-content h1 {
  font-size: 2.2rem;
  padding: 0 1rem;
}

.hero-content {
  padding: 1rem;
  text-align: center;
  order: 1;
}

.hero-image {
  padding: 0.5rem;
  order: 2;
}

.hero-image .phone-frame {
  max-width: 240px;
  margin: 0 auto;
  transform: rotate(0);
}

.hero-image .phone-frame:hover {
  transform: translateY(-10px);
}

.feature-grid {
  grid-template-columns: 1fr;
  padding: 0 1.5rem;
  gap: 2.5rem;
}

.feature-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: white;
  margin: 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-radius: 15px;
  margin-bottom: 1rem;
}

.feature-icon {
  width: 45px;
  height: 45px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  color: var(--secondary-color);
}

.feature-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: #666;
  max-width: 280px;
  margin: 0 auto;
}

.nav-links {
  display: none;
}

.mobile-menu-button {
  width: 35px;
  height: 35px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 5px;
  border-radius: 8px;
  transition: background-color 0.3s ease;
}

.mobile-menu-button:hover {
  background: rgba(255, 105, 180, 0.1);
}

.mobile-menu-button span {
  width: 25px;
  height: 2px;
  background: var(--primary-color);
  margin: 3px 0;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.main-header.menu-open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  animation: slideDown 0.3s ease-out;
}

.main-header.menu-open .nav-links a {
  padding: 1rem 1.5rem;
  width: 100%;
  text-align: center;
  border-radius: 8px;
  margin: 0.3rem 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.main-header.menu-open .nav-links a:hover {
  background: var(--gradient-primary);
  color: white;
  transform: translateX(5px);
}

.solutions-grid {
  grid-template-columns: 1fr;
  padding: 1rem;
  gap: 1.5rem;
}

.data-grid {
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.contact-content {
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contact-qr {
  order: -1;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 3rem;
  padding: 0 1rem;
}

.data-number {
  font-size: 2.5rem;
}

.about-content {
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: 1rem;
}

.about-description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.about-features {
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.about-feature {
  padding: 1.2rem;
  text-align: center;
}

.about-feature h4 {
  margin-bottom: 0.8rem;
}

.about-image {
  transform: none;
  order: -1;
  padding: 0;
  margin: 0 -1rem;
  margin-top: -3rem;
}

.about-image img {
  max-width: 100%;
  margin-left: 0;
  border-radius: 0;
  display: block;
}

.demo-flow {
  flex-direction: column;
  gap: 2rem;
}

.demo-arrow {
  transform: rotate(90deg);
  margin: 1rem 0;
}

.demo-step {
  width: 100%;
}

.demo-label {
  padding: 1.5rem;
}

.demo-label h3 {
  font-size: 1.3rem;
}

.demo-image {
  max-width: 240px;
}

/* 移动端logo样式调整 */
.logo-collaboration {
  gap: 0.25rem;
  height: 50px;
  max-width: 260px;
}

.logo-divider {
  padding: 0 0.2rem;
  font-size: 0.9rem;
}

.logo img {
  height: 100%;
  width: auto;
  border-radius: 5px;
  object-fit: contain;
}

.concept-version-notice {
  text-align: left;
  margin: 1.5rem 0;
}

.footer-content {
  grid-template-columns: 1fr;
  gap: 3rem;
}

.official-account {
  margin: 0 auto;
}

/* 调整其他区块间距 */
.demo-section {
  margin-top: 4rem;
  background: #f8f9fa;
  padding: 3rem 0;
}

.solutions-section {
  margin-top: 4rem;
  padding: 3rem 0;
}

.data-section {
  margin-top: 4rem;
  padding: 3rem 0;
}

.about-section {
  margin-top: 4rem;
  padding: 2rem 0;
}

.contact-section {
  margin-top: 4rem;
  padding: 3rem 0;
  background: #f8f9fa;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.main-header.menu-open .mobile-menu-button span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.main-header.menu-open .mobile-menu-button span:nth-child(2) {
  opacity: 0;
}

.main-header.menu-open .mobile-menu-button span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.timeline {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

.timeline-item {
  padding-left: 100px;
}

.timeline::before {
  left: 50px;
}

.timeline-date {
  left: -30px;
  width: 70px;
  font-size: 0.85rem;
}