.viavia-about-page {
  font-family: Arial, Helvetica, sans-serif;
  color: #111;
}

.viavia-about-page * {
  box-sizing: border-box;
}

.viavia-section {
  padding: 80px 20px;
}

.viavia-container {
  max-width: 1280px;
  margin: 0 auto;
}

.viavia-title {
  text-align: center;
  margin-bottom: 45px;
}

.viavia-title span {
  color: #e60012;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.viavia-title h2 {
  font-size: 38px;
  margin: 14px 0 0;
}

.viavia-title p {
  max-width: 760px;
  margin: 16px auto 0;
  color: #666;
  font-size: 16px;
  line-height: 1.7;
}

/* Banner */
.viavia-about-banner {
  min-height: 420px;
  background-image: linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.55)), url('这里替换成About Us Banner图片地址');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 80px 20px;
}

.viavia-about-banner h1 {
  font-size: 52px;
  margin: 0 0 18px;
}

.viavia-about-banner p {
  font-size: 20px;
  max-width: 780px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Overview */
.viavia-overview {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 55px;
  align-items: center;
}

.viavia-overview img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 12px 35px rgba(0,0,0,.12);
}

.viavia-label {
  color: #e60012;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.viavia-overview h2,
.viavia-quality h2 {
  font-size: 38px;
  line-height: 1.25;
  margin: 0 0 22px;
}

.viavia-overview p,
.viavia-quality p {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
}

/* Stats */
.viavia-stats {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 18px;
  margin-top: 32px;
}

.viavia-stat {
  background: #f7f8fa;
  padding: 22px 14px;
  text-align: center;
  border-radius: 10px;
}

.viavia-stat strong {
  display: block;
  font-size: 30px;
  color: #e60012;
  margin-bottom: 6px;
}

.viavia-stat span {
  font-size: 13px;
  color: #555;
}

/* Why Choose */
.viavia-why {
  background: #f8f9fb;
}

.viavia-why-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 24px;
}

.viavia-why-card {
  background: #fff;
  padding: 32px 26px;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0,0,0,.06);
}

.viavia-why-card h3 {
  font-size: 20px;
  margin: 0 0 12px;
}

.viavia-why-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #666;
  margin: 0;
}

/* Quality */
.viavia-quality {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.viavia-quality-list {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 20px;
  margin-top: 30px;
}

.viavia-quality-item {
  display: flex;
  gap: 12px;
}

.viavia-icon {
  width: 38px;
  height: 38px;
  background: #e60012;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.viavia-quality-item h4 {
  margin: 0 0 6px;
  font-size: 17px;
}

.viavia-quality-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.viavia-gallery-4 {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 18px;
}

.viavia-gallery-4 img,
.viavia-gallery-grid img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 12px;
}

/* Industries */
.viavia-industries {
  background: #f8f9fb;
}

.viavia-industries-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 22px;
}

.viavia-industry-card {
  min-height: 260px;
  background-size: cover;
  background-position: center;
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  color: #fff;
  text-decoration: none;
}

.viavia-industry-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,.1), rgba(0,0,0,.68));
}

.viavia-industry-card div {
  position: absolute;
  z-index: 2;
  left: 26px;
  right: 26px;
  bottom: 24px;
}

.viavia-industry-card h3 {
  font-size: 24px;
  margin: 0 0 8px;
  color: #fff;
}

.viavia-industry-card p {
  color: #eee;
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
}

/* Factory Gallery */
.viavia-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 18px;
}

/* Certificates */
.viavia-cert {
  background: #f8f9fb;
}

.viavia-cert-grid {
  display: grid;
  grid-template-columns: repeat(5,1fr);
  gap: 20px;
}

.viavia-cert-card {
  background: #fff;
  border-radius: 12px;
  padding: 26px 16px;
  text-align: center;
  box-shadow: 0 8px 22px rgba(0,0,0,.05);
}

.viavia-cert-card strong {
  font-size: 22px;
  color: #e60012;
}

/* CTA */
.viavia-cta {
  background: #111;
  color: #fff;
  text-align: center;
  padding: 80px 20px;
}

.viavia-cta h2 {
  font-size: 38px;
  margin: 0 0 16px;
}

.viavia-cta p {
  color: #ccc;
  font-size: 16px;
  max-width: 680px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.viavia-cta a {
  display: inline-block;
  background: #e60012;
  color: #fff;
  padding: 14px 34px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 700;
}

/* Mobile */
@media(max-width:900px) {
  .viavia-about-banner h1 {
    font-size: 38px;
  }

  .viavia-overview,
  .viavia-quality {
    grid-template-columns: 1fr;
  }

  .viavia-stats,
  .viavia-why-grid,
  .viavia-industries-grid,
  .viavia-gallery-grid,
  .viavia-cert-grid {
    grid-template-columns: repeat(2,1fr);
  }
}

@media(max-width:600px) {
  .viavia-section {
    padding: 55px 16px;
  }

  .viavia-title h2,
  .viavia-overview h2,
  .viavia-quality h2,
  .viavia-cta h2 {
    font-size: 28px;
  }

  .viavia-stats,
  .viavia-why-grid,
  .viavia-industries-grid,
  .viavia-gallery-4,
  .viavia-gallery-grid,
  .viavia-cert-grid,
  .viavia-quality-list {
    grid-template-columns: 1fr;
  }
}