#business-strength {
  background: #f5f7fa;
  display: flex;
  align-items: center;
  justify-content: center;
}
.strength-bg {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.strength-bg img {
  width: 100%;
  height: 100vh;
  object-fit: cover;
  opacity: .9;
}

#strength-title {
  flex-direction: column;
  margin-top: 1.5em;
  display: block;
  text-align: center;
  margin-bottom: 1.5em;
}

#strength-title h2{
  display: block;
  color: #ffd600;
  font-size: 3em;
  margin-top: 0;
  margin-bottom: 0;
}

#strength-title p{
  display: block;
  color: #c4c8d1;
  font-size: 1.5em;
  margin: 0;
}

.strength-content {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 6em;
}

.stat {
  position: absolute;
  min-width: 220px;
  background: rgba(255,255,255,0.7);
  border-radius: 18px;
  padding: 2.2em 2.5em 2em 2.5em;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.25s, color 0.25s, border-bottom-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.stat:hover {
  transform: translateY(-4px) scale(1.025);
  box-shadow: 0 8px 24px 0 rgba(35,58,122,0.13), 0 1px 8px 0 rgba(243,196,21,0.07);
  z-index: 2;
}
.stat-title {
  font-size: 1.5em;
  font-weight: bold;
  color: #233a7a;
  margin-bottom: 0.7em;
}
.stat-value {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: 2.5em;
  font-weight: bold;
  color: #f3c415;
  letter-spacing: 0.02em;
}
.stat-volume .stat-title, .stat-route .stat-title, .stat-partners .stat-title {
  color: #233a7a;
}
.stat-volume .stat-value, .stat-route .stat-value, .stat-partners .stat-value {
  color: #192e66;
}
.stat-areas .stat-title, .stat-areas .stat-value {
  color: #f3c415;
}
.stat .iconfont {
  font-size: 1.5em;
  display: block;
  color: #233a7a;
}
.stat-volume .iconfont, .stat-route .iconfont, .stat-partners .iconfont {
  color: #233a7a;
}
.stat-areas .iconfont {
  color: #f3c415;
}
.stat-volume .stat-title, .stat-volume .stat-value, .stat-volume .iconfont,
.stat-areas .stat-title, .stat-areas .stat-value, .stat-areas .iconfont {
  color: #f3c415;
}

.stat-partners { top: 25%; left: 10%; }
.stat-volume   { top: 30%; right: 10%; }
.stat-route    { top: 50%; right: 25%; }
.stat-areas    { bottom: 20%; left: 30%; }

#strength-title {
  text-align: center;
  margin-bottom: 0.5em;
  font-weight: 700;
  color: black;
  letter-spacing: 0.01em;
  word-break: break-all;
  white-space: normal;
  line-height: 1.2;
}

.strength-title-white, #strength-title .highlight {
  display: inline-block;
  vertical-align: middle;
  text-align: center;
  font-weight: 700;
  word-break: break-all;
  white-space: normal;
}
.stat-volume, .stat-areas {
  border-bottom: 4px solid #f3c415;
  box-shadow: 0 8px 32px 0 rgba(243,196,21,0.12);
}
.stat-partners, .stat-route {
  border-bottom: 4px solid #233a7a;
  box-shadow: 0 8px 32px 0 rgba(35,58,122,0.12);
}
.stat-volume:hover, .stat-areas:hover {
  background: #f3c415;
  color: #233a7a;
  border-bottom-color: #f3c415;
}
.stat-volume:hover .stat-title, .stat-volume:hover .stat-value, .stat-volume:hover .iconfont,
.stat-areas:hover .stat-title, .stat-areas:hover .stat-value, .stat-areas:hover .iconfont {
  color: #233a7a;
}
.stat-partners:hover, .stat-route:hover {
  background: #233a7a;
  color: #f3c415;
  border-bottom-color: #233a7a;
}
.stat-partners:hover .stat-title, .stat-partners:hover .stat-value, .stat-partners:hover .iconfont,
.stat-route:hover .stat-title, .stat-route:hover .stat-value, .stat-route:hover .iconfont {
  color: #f3c415;
}


/* PC端（≥1024px） */
@media (min-width: 1024px) {
  .stat-partners { top: 25%; left: 10%; }
  .stat-volume   { top: 28%; right: 10%; }
  .stat-route    { top: 50%; right: 25%; }
  .stat-areas    { bottom: 15%; left: 30%; }
  .stat {
    position: absolute;
    min-width: 220px;
    border-radius: 18px;
    padding: 2.2em 2.5em 2em 2.5em;
    font-size: 1em;
  }
}

/* PAD端（768px~1023px） */
@media (min-width: 768px) and (max-width: 1023px) {
  .stat-partners { top: 25%; left: 5%; }
  .stat-volume   { top: 28%; right: 5%; }
  .stat-route    { top: 50%; right: 25%; }
  .stat-areas    { bottom: 15%; left: 10%; }
}

/* 手机端（≤767px） */
@media (max-width: 767px) {
  .strength-title-white, #strength-title .highlight { 
    display: block;
  }

  .strength-bg {
    height: auto;
  }

  .strength-bg img {
    display: none;
  }

  .strength-content {
    position: relative;
    padding-top: 0;
  }

  #strength-title {
    margin-top: 1.5em;
    display: block;
    text-align: center;
    margin-bottom: 1.5em;
  }

  #strength-title h2{
    color: #ffd600;
    font-size: 1.5em;
    margin-top: 0;
    margin-bottom: 0;
  }

  #strength-title p{
    color: #c4c8d1;
    font-size: 1em;
    margin: 0;
  }

  .strength-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1em;
    width: 100%;
    height: auto;
    max-width: 100vw;
    margin: 0 auto;
    position: static;
    padding: 0 1em;
    box-sizing: border-box;
  }

  .stat {
    position: static;
    min-width: 0;
    width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
    border-radius: 8px;
    font-size: 0.95em;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1em 0.3em;
  }

  .stat-title {
    font-size: 1.2em;
  }

  .stat-value {
    font-size: 1.8em;
  }
}