html {
  scroll-behavior: smooth;
}

/* About Page Styles - 山东诺为新材料网站 */
main {
  padding-top: 0;
}

/* Hero Section */
/* Hero Section */
.hero-section {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(../images/96a8e519b468b2e5942c4bd33cf58bb2.png) center center no-repeat;
  background-size: cover;
  height: 600px;
  width: 100%;
  position: relative;
}

.hero-text-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 90%;
  max-width: 1200px;
}

.hero-text-overlay p {
  color: #ffffff;
  font-size: clamp(20px, 2vw, 32px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Statistics Section */
.stats-section {
  padding-top: 80px;
  /* background: #f5f5f5; */
}

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

.stats-title {
  font-size: 36px;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
}

.stats-subtitle-wrapper {
  display: inline-block;
  position: relative;
}

.stats-subtitle {
  font-size: 16px;
  color: #666;
  margin: 0 0 10px 0;
  padding: 0 20px;
}

.orange-underline {
  width: 60%;
  height: 3px;
  background: #F89966;
  margin: 0 auto;
  border-radius: 2px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto 60px auto;
  padding-bottom: 40px;
  border-bottom: 1px solid #ddd;
}

.stat-card {
  text-align: center;
  padding: 0;
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: #F89966;
  line-height: 1;
  padding-bottom: 20px;

}

.stat-label {
  font-size: 14px;
  color: #666;
  font-weight: 400;
  line-height: 1.6;
  /* margin-top: 20px; */
}

.stats-description {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

.stats-description p {
  font-size: 16px;
  line-height: 2;
  color: #333;
  text-align: justify;
  margin: 0;
}

/* Company Introduction Section */
.intro-section {
  /* padding: 100px 0; */
  background: #ffffff;
}

.intro-section .container {
  max-width: 1400px;
}

.intro-images {
  position: relative;
  margin-bottom: 60px;
  text-align: center;
}

.intro-image-main {
  width: 100%;
  max-width: 1200px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
  display: block;
}

.intro-decoration {
  position: absolute;
  top: -20px;
  right: 10%;
  width: 80px;
  height: auto;
  opacity: 0.8;
}

.intro-content {
  max-width: 1200px;
  margin: 0 auto;
}

.intro-text {
  font-size: 16px;
  line-height: 2;
  color: #333;
  margin-bottom: 30px;
  text-align: justify;
  text-indent: 0;
}

/* Innovation Section */

.intro-content1 {
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  margin: 80px auto 40px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.innovation-image {
  width: 100%;
  height: 100%;
}

.innovation-image .lazy-image-wrapper {
  width: 100%;
  height: 100%;
}

.innovation-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  box-shadow: none;
  display: block;
}

.innovation-content {
  background-color: #F89966;
  color: #ffffff;
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}



.innovation-title {
  font-size: 42px;
  font-weight: 700;
  /* color: #ffffff; */
  margin-bottom: 15px;
  line-height: 1.2;
}

.innovation-subtitle {
  font-size: 18px;
  /* color: #ffffff; */
  margin-bottom: 40px;
  line-height: 1.6;
  opacity: 0.95;
}

.innovation-text {
  font-size: 16px;
  line-height: 2;
  /* color: #ffffff; */
  margin-bottom: 25px;
  text-align: justify;
}

/* Contact Section */
.contact-section {
  padding: 100px 0;
  background: #ffffff;
}

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

.section-title {
  font-size: 42px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 15px;
}

.section-subtitle {
  font-size: 18px;
  color: #666;
  font-weight: 400;
  margin-bottom: 20px;
}

.section-header .orange-underline {
  width: 50px;
  height: 4px;
  margin-top: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 30px;
  padding: 50px;
  background: #ffffff;
  border: 1px solid #eeeeee;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.contact-icon {
  flex-shrink: 0;
  width: auto;
  height: auto;
  display: block;
  background: none;
  border-radius: 0;
  box-shadow: none;
  margin-top: 5px;
}

.contact-icon img {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.contact-info {
  flex: 1;
}

.contact-title {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 15px;
}

.contact-text {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
}

/* Research Innovation Banner */
.research-banner {
  padding: 100px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.research-banner .container {
  max-width: 1400px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 60px;
}

.banner-content {
  flex: 1;
  color: #ffffff;
}

.banner-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.banner-subtitle {
  font-size: 20px;
  font-weight: 400;
  line-height: 1.6;
  opacity: 0.95;
}

.banner-image {
  flex: 1;
  max-width: 500px;
}

.banner-image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Responsive Design - Tablet */
@media (max-width: 1199px) {
  .hero-title {
    font-size: 40px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .stats-title {
    font-size: 32px;
  }

  .stats-subtitle {
    font-size: 15px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }

  .stat-number {
    font-size: 40px;
  }

  .stat-label {
    font-size: 13px;
  }

  .stats-description {
    padding: 0;
  }

  .stats-description p {
    font-size: 15px;
  }

  .innovation-section .container {
    gap: 50px;
  }

  .section-title {
    font-size: 36px;
  }

  .contact-grid {
    gap: 30px;
  }

  .banner-title {
    font-size: 40px;
  }

  .banner-subtitle {
    font-size: 18px;
  }
}

/* Responsive Design - Mobile */
@media (max-width: 767px) {
  .hero-section {
    padding: 60px 0;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .stats-section {
    /* padding: 60px 0; */
  }


  .stats-header {
    margin-bottom: 40px;
  }

  .stats-title {
    font-size: 28px;
  }

  .stats-subtitle {
    font-size: 14px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
  }

  .stat-number {
    font-size: 36px;
  }

  .stat-label {
    font-size: 13px;
  }

  .stats-description {
    padding: 0;
  }

  .stats-description p {
    font-size: 14px;
    line-height: 1.8;
  }

  .intro-section {
    padding: 60px 0;
  }

  .intro-images {
    margin-bottom: 40px;
  }

  .intro-decoration {
    width: 50px;
    top: -10px;
    right: 5%;
  }

  .intro-text {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
  }

  .innovation-section {
    padding: 60px 0;
  }

  .innovation-section .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .innovation-title {
    font-size: 32px;
  }

  .innovation-subtitle {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .innovation-text {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
  }

  .contact-section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: 28px;
  }

  .section-subtitle {
    font-size: 16px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-card {
    padding: 25px;
    gap: 20px;
  }

  .contact-icon {
    width: auto;
    height: auto;
    margin-top: 0;
  }

  .contact-icon img {
    width: 40px;
    height: 40px;
  }

  .contact-title {
    font-size: 18px;
    margin-bottom: 10px;
  }

  .contact-text {
    font-size: 14px;
  }

  .research-banner {
    padding: 60px 0;
  }

  .research-banner .container {
    flex-direction: column;
    gap: 40px;
  }

  .banner-title {
    font-size: 32px;
  }

  .banner-subtitle {
    font-size: 16px;
  }

  .banner-image {
    max-width: 100%;
  }

  .intro-content1 {
    grid-template-columns: 1fr;
    gap: 30px;
    margin: 40px 20px;
    padding: 30px 20px;
    text-align: center;
  }

  .intro-content {
    padding: 0 20px;
  }

  .innovation-content {
    text-align: center;
  }
}

/* Additional utility classes for about page */
.text-justify {
  text-align: justify;
}

.text-indent {
  text-indent: 2em;
}

/* Lightbox Styles */
.lightbox-modal {
  display: none;
  position: fixed;
  z-index: 10000;
  padding-top: 0;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.9);
  align-items: center;
  justify-content: center;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  margin: auto;
  display: block;
  width: auto;
  height: auto;
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
  animation-name: zoom;
  animation-duration: 0.3s;
  cursor: default;
}

@keyframes zoom {
  from {
    transform: scale(0.1);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.clickable-image {
  cursor: zoom-in;
  transition: transform 0.2s ease;
  display: block;
}

.clickable-image:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Specific Adjustments for New Cards */

/* Participating Unit Card */
.contact-card-cert {
  align-items: center;
  padding: 30px 50px;
}

.contact-card-cert .contact-icon {
  margin-top: 0;
  width: auto;
  height: auto;
  flex-shrink: 0;
}

.contact-card-cert .cert-image {
  width: 160px;
  height: auto;
  object-fit: contain;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.contact-card-cert .contact-info {
  padding-left: 30px;
}

.contact-card-cert .contact-title {
  margin-bottom: 10px;
}

.contact-card-cert .contact-text {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* Salesperson QR Code Card */
.contact-card-qr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 30px 50px;
}

.contact-card-qr .contact-icon {
  margin-top: 0;
  width: auto;
  height: auto;
  flex-shrink: 0;
}

.contact-card-qr .contact-icon img {
  width: 60px;
  height: 60px;
}

.contact-card-qr .contact-info {
  flex: 1;
  padding: 0 30px;
}

.contact-card-qr .contact-qr-wrapper {
  flex-shrink: 0;
  margin-left: 0;
  /* Reset auto margin */
}

.contact-card-qr .qr-image {
  width: 100px;
  height: 100px;
  object-fit: contain;
}

/* Touch targets */
.clickable-image {
  cursor: zoom-in;
  transition: transform 0.2s ease;
  display: block;
}

.clickable-image:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Mobile Adjustments for New Cards */
@media (max-width: 767px) {

  .contact-card-cert,
  .contact-card-qr {
    padding: 25px;
  }

  /* Cert Card Mobile */
  .contact-card-cert .cert-image {
    width: 100px;
  }

  .contact-card-cert .contact-info {
    padding-left: 20px;
  }

  /* QR Card Mobile */
  .contact-card-qr .contact-icon img {
    width: 40px;
    height: 40px;
  }

  .contact-card-qr .contact-info {
    padding: 0 10px;
  }

  .contact-card-qr .qr-image {
    width: 80px;
    height: 80px;
  }

  .contact-card-qr .contact-title {
    font-size: 16px;
    /* Match other mobile titles */
  }
}