.features-section{
  padding:100px 20px;
  background:#f8fafc;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
}

.features-container{
  max-width:1200px;
  margin:0 auto;
  text-align:center;
}

/* 标题 */
.features-title{
  font-size:36px;
  font-weight:800;
  color:#0f172a;
  margin-bottom:10px;
}

.features-subtitle{
  color:#64748b;
  font-size:16px;
  margin-bottom:60px;
}

/* 网格 */
.features-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}

/* 卡片 */
.feature-card{
  background:#fff;
  padding:30px;
  border-radius:16px;
  text-align:left;
  box-shadow:0 8px 25px rgba(0,0,0,0.05);
  transition:all .3s;
}

.feature-card:hover{
  transform:translateY(-6px);
  box-shadow:0 12px 35px rgba(0,0,0,0.08);
}

/* 图标 */
.icon-box{
  width:50px;
  height:50px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:18px;
  color:#fff;
}

/* 不同颜色 */
.teal{background:#56B8B8;}
.orange{background:#ff7a18;}
.purple{background:#6c63ff;}
.green{background:#10b981;}
.red{background:#f43f5e;}
.yellow{background:#f59e0b;}

/* 标题 */
.feature-card h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:16px;
  color:#0f172a;
}

/* 列表 */
.feature-card ul{
  list-style:none;
  padding:0;
  margin:0;
}

.feature-card li{
  font-size:14px;
  color:#64748b;
  margin-bottom:12px;
  position:relative;
  padding-left:22px;
}

/* check icon */
.feature-card li:before{
  content:"✔";
  position:absolute;
  left:0;
  top:0;
  color:#56B8B8;
  font-size:12px;
}

/* 响应式 */
@media (max-width:1024px){
  .features-grid{
    grid-template-columns:repeat(2,1fr);
  }
}

@media (max-width:768px){
  .features-grid{
    grid-template-columns:1fr;
  }

  .features-title{
    font-size:28px;
  }
}