/* ==========================================================================
   How It Works section
   复刻对标站 .pbmit-miconheading-style-1 卡片
   ========================================================================== */

.how-it-works-section {
  position: relative;
  width: 100%;
  background-color: #ebeff3;
  color: var(--how-it-works-text-color, #1a1a1a);
  padding: 80px 0 100px;
}

@media (max-width: 991px) {
  .how-it-works-section {
    padding: 60px 0;
  }
}

/* 容器 */
.how-it-works-container {
  position: relative;
  width: 100%;
  max-width: 1520px;
  margin: 0 auto;
  padding-inline: 20px;
}

/* ==========================================================================
   标题区
   ========================================================================== */

.how-it-works-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.how-it-works-subtitle {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 2px;
  color: var(--how-it-works-accent-color, #4aab3d);
  text-transform: uppercase;
}

.how-it-works-title {
  margin: 0;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--how-it-works-title-color, #1a1a1a);
  text-transform: capitalize;
}

@media (max-width: 991px) {
  .how-it-works-title {
    font-size: 30px;
  }
  .how-it-works-header {
    margin-bottom: 40px;
  }
}

@media (max-width: 575px) {
  .how-it-works-title {
    font-size: 24px;
  }
  .how-it-works-header {
    margin-bottom: 30px;
  }
}

/* ==========================================================================
   卡片网格
   ========================================================================== */

.how-it-works-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

@media (max-width: 991px) {
  .how-it-works-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .how-it-works-row {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   单张卡片
   布局：白底圆角 + 左对齐内部 + icon 在上 + title 在下
   装饰：右下角圆形序号（无描边、白底、绿字）
   ========================================================================== */

.how-it-works-card-wrap {
  position: relative;
  width: 100%;
}

.how-it-works-card {
  position: relative;
  background-color: #ffffff;
  border-radius: 12px;
  padding: 30px 25px 30px 25px;
  text-align: left;
  overflow: visible;
  aspect-ratio: 1 / 1;
  min-height: 240px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 8px;
}

@media (max-width: 991px) {
  .how-it-works-card {
    margin: 8px 0;
  }
}

.how-it-works-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

/* 卡片内部容器 - 左对齐 */
.how-it-works-card-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  z-index: 1;
}

/* 序号圆（绝对定位，与 how-it-works-card 同一级，wrap 右下角，部分突出） */
.how-it-works-card-number-wrap {
  position: absolute;
  bottom: 0px;
  right: 0px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  border: 10px solid var(--how-it-works-accent-color, #ebeff3);
  border-radius: 50%;
  z-index: 3;
  transition: transform 0.4s ease, background-color 0.3s ease;
  pointer-events: none;
}

.how-it-works-card-wrap:hover .how-it-works-card-number-wrap {
  background-color: var(--how-it-works-accent-color, #4aab3d);
}

.how-it-works-card-wrap:hover .how-it-works-card-number {
  color: #ffffff;
}

.how-it-works-card-number {
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  color: var(--how-it-works-accent-color, #4aab3d);
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

/* 图标（绿色线性，**加大到 100x100**） */
.how-it-works-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  position: relative;
  z-index: 1;
  transition: transform 0.4s ease;
}

.how-it-works-card:hover .how-it-works-card-icon {
  transform: translateY(-6px);
}

.how-it-works-card-icon img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* 标题（icon 下方，左对齐） */
.how-it-works-card-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--how-it-works-title-color, #1a1a1a);
  text-align: left;
  position: relative;
  z-index: 1;
}

@media (max-width: 1199px) {
  .how-it-works-card-title {
    font-size: 15px;
  }
}

@media (max-width: 575px) {
  .how-it-works-card-title {
    font-size: 14px;
  }
}

/* ==========================================================================
   动画：进入视口时 fadeInUp，错开延迟
   ========================================================================== */

.how-it-works-card-wrap,
.wow-fadeInUp {
  opacity: 0;
  transform: translate3d(0, 30px, 0);
  transition: opacity 0.8s ease, transform 0.8s ease;
  will-change: opacity, transform;
}

.how-it-works-section.wow-ready .how-it-works-card-wrap,
.how-it-works-section.wow-ready .wow-fadeInUp {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(1) { transition-delay: 0.1s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(2) { transition-delay: 0.2s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(3) { transition-delay: 0.3s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(4) { transition-delay: 0.4s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(5) { transition-delay: 0.5s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(6) { transition-delay: 0.6s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(7) { transition-delay: 0.7s; }
.how-it-works-section.wow-ready .how-it-works-card-wrap:nth-child(8) { transition-delay: 0.8s; }