:root {
  --white: #ffffff;
  --line: rgba(255,255,255,0.12);
  --orange: #ff7823;
  --green-light-bg: #f6f9f8;
  --green-light-text: #222;
}

.split {
  padding: 80px 0;
  background-color: #E2E3DE;
}
.split .container {
  margin: 0 auto;
  padding-inline: 24px;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
}

.panel {
  padding: 36px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

.panel-navy {
  background: #454545;
  color: var(--white);
}
.panel-navy h2 {
  color: var(--white);
  font-size: clamp(24px, 1.88vw, 36px);
  margin-bottom: 24px;
  margin-top: 0;
}

.diff-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.diff-box {
  color: var(--green-light-text);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.diff-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 26px rgba(0,0,0,0.15);
}

.diff-box .tag {
  font-size: clamp(24px, 1.88vw, 36px);
  font-weight: 700;
  padding: 20px 0;
  border-radius: 20px 20px 0 0;
  background: #fff;
  text-align: center;
  color: var(--color-primary);
  transition: background 0.25s ease, color 0.25s ease;
}
.diff-box:hover .tag {
  background: var(--color-primary);
  color: #fff;
}

.diff-box p {
  font-size: clamp(14px, 0.94vw, 18px);
  line-height: 1.55;
  margin: 0;
}
.diff-box .desc {
  background: #535353;
  padding: 25px;
  color: #fff;
}

.panel-light {
  background: #232524;
  border: 1px solid var(--line);
}
.panel-light h2 {
  font-size: clamp(24px, 1.88vw, 36px);
  color: #fff;
  margin-bottom: 28px;
  margin-top: 0;
}

.flow {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  row-gap: 34px;
  column-gap: 16px;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  transition: transform 0.22s ease;
}
.flow-step:hover {
  transform: translateX(6px);
}

.flow-num {
  width: 50px;
  height: 50px;
  flex: none;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  font-weight: 700;
  font-size: clamp(14px, 0.94vw, 18px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}
.flow-step:hover .flow-num {
  transform: scale(1.08);
}

.flow-step span.label {
  font-size: clamp(16px, 1.25vw, 24px);
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
  display: block;
}

/* ========== 响应式 ========== */
@media screen and (max-width: 1024px) {
  .split .container {
    grid-template-columns: 1fr;
  }
  .split {
    padding: 60px 0;
  }
}

@media screen and (max-width: 768px) {
  .panel {
    padding: 28px 24px;
  }
  .diff-cols {
    grid-template-columns: 1fr;
  }
  .flow {
    grid-template-columns: 1fr;
    row-gap: 26px;
  }
  .split {
    padding: 45px 0;
  }
  .diff-box .desc {
    padding: 20px;
  }
}

@media screen and (max-width: 576px) {
  .panel {
    padding: 24px 20px;
  }
  .flow-num {
    width: 44px;
    height: 44px;
  }
  .split {
    padding: 36px 0;
  }
}