.tech-hero-bg {
  background: radial-gradient(circle at 50% 35%, #ffffff 0%, #f3f4f6 65%, #e5e7eb 100%);
}
.tech-hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.2;
}

@media (max-width:1280px){
  .tech-hero-title{
    font-size: 2.5rem;
  }
}
@media (max-width:640px){
  .tech-hero-title{
    font-size: 2rem;
  }
}

/* 右侧技术文档 */
.tech-doc-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 1.25rem;
  padding: 1rem 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.tech-doc-vertical-text {
  writing-mode: vertical-lr;
  font-size: 0.8rem;
  color: #6b7280;
  letter-spacing: 3px;
}

.blue-folder-badge {
  transition: all .3s ease;
  cursor: pointer;
}

.blue-folder-badge:hover {
  transform: translateY(-2px);
  /* transition: all .3s ease; */
}


/* 3 大核心技术卡片 */

.tech-card-item {
  background-color: #ffffff;
  border-radius: 0.6rem;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.03);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  will-change: transform, box-shadow;
  cursor: pointer;
}

.tech-card-content{
  padding: 1.5rem 1rem 1rem;
}

.tech-card-desc {
  min-height: 96px;
  display: flex;
  align-items: flex-start;
  border-bottom: 1px dashed #E5E7EB;
}

.tech-advantage-box {
  min-height: 88px;
  display: flex;
  align-items: center;
}

.tech-steps-box {
  min-height: 172px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

/* 默认 头部深灰色 */
.tech-card-header {
  background-color: #555b66;
  padding: 1rem 1.5rem 0.6rem;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.4s cubic-bezier(0.25, 1, 0.5, 1),
              background 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

@media (max-width:1280px){
  .tech-card-header {
    padding: 0.5rem 0.8rem 0.3rem;
  }
} 

.tech-card-num {
  color: #555b66;
  transition: color 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.tech-card-check {
  color: #9ca3af;
  transition: color 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.tech-step-badge {
  display: inline-block;
  padding: 0.18rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #ffffff;
  background-color: #8b93a0;
  margin-right: 0.4rem;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.tech-card-item:hover {
  box-shadow: 0 16px 36px -8px rgba(249, 108, 5, 0.18), 0 4px 12px rgba(0, 0, 0, 0.03);
  transition: all .3s ease;
}

.tech-card-item:hover .tech-card-header {
  background: #ea580c;
  transition: all .3s ease;
}

.tech-card-item:hover .tech-card-num {
  color: var(--brand-orange, #f96c05);
  transition: all .3s ease;
}

.tech-card-item:hover .tech-card-check {
  color: var(--brand-orange, #f96c05);
  transition: all .3s ease;
}

.tech-card-item:hover .tech-step-badge {
  background-color: var(--brand-orange, #f96c05);
  transition: all .3s ease;
}

.certsimg {
  width: 100%;
}

@media (min-width: 768px) {
  .certsimg {
    width: 70% !important;
  }
}