body {
  font-family: "微软雅黑";
}
#nav ul {
  margin: 0;
}
.product {
  margin: 0 auto;
}
.product .title {
  color: #ffc001;
  font-size: 24px;
  height: 50px;
  line-height: 50px;
}
.product .thumbnail {
  padding: 0;
  border: none;
}
.product .thumbnail img {
  width: 100%;
}
.product .thumbnail .number {
  position: absolute;
  left: 42%;
  bottom: 26%;
  width: 72px;
  height: 72px;
  line-height: 68px;
  text-align: center;
  border-radius: 50%;
  font-size: 30px;
  background: #ffc001;
  border: 4px solid #fff;
  color: #fff;
}
.product .thumbnail .caption h3 {
  margin-top: 38px;
  text-align: center;
  color: #337ab7;
}
.feature {
  margin-top: 10px;
  background: url(../images/service.jpg) center top no-repeat;
  background-size: auto 100%;
  height: 740px;
}
.feature .title {
  padding: 20px 20px 20px;
  color: #fff !important;
}
.feature .title h2 {
	line-height: 30px;
  font-size: 24px;
  font-weight: bold;
}
.feature .title p {
  font-size: 14px;
  color: #fff;
  line-height: 20px;
}
.feature .content {
	clear: both;
  width: 300px;
  margin: 0 auto;
}
.feature .content .dis {
	float: left;
	width: 150px;
  background: no-repeat;
  border: none;
}
.feature .content .dis img{
	display: block;
	margin: 0 auto;
}
.feature .content .dis .cap {
	margin-bottom: 20px;
  text-align: center;
  color: #fff;
}
.feature .content .dis .cap p {
	margin: 0 auto;
	width: 150px;
  font-size: 16px;
  color: #fff;
}
@media (min-width: 320px) {
	
	.product .thumbnail .number {
	  left: 41%;
    bottom: 33%;
	}
}
@media (min-width: 360px) {
	.feature {
  margin-top: 10px;
  background: url(../images/service.jpg) center top no-repeat;
  background-size: auto 100%;
  height: 710px;
}
	.feature .content {
	clear: both;
  width: 360px;
  margin: 0 auto;
}
.feature .content .dis {
	float: left;
	width: 180px;
  background: no-repeat;
  border: none;
}
	.product .thumbnail .number {
	  left: 42%;
    bottom: 28%;
	}
}
@media (min-width: 375px) {
	.product .thumbnail .number {
	  left: 42%;
    bottom: 27%;
	}
}
@media (min-width: 414px) {
	.product .thumbnail .number {
	  left: 42%;
    bottom: 26%;
	}
}
/* 小屏幕（平板，大于等于 768px） */
@media (min-width: 768px) {
		.product .title {
	  margin: 30px 0;
	  color: #ffc001;
	}
	.product .thumbnail .number {
	  position: absolute;
	  left: 37%;
    bottom: 46%;
	  width: 72px;
	  height: 72px;
	  line-height: 68px;
	  text-align: center;
	  border-radius: 50%;
	  font-size: 30px;
	  background: #ffc001;
	  border: 4px solid #fff;
	  color: #fff;
	}
	.feature {
	  margin-top: 10px;
	  background: url(../images/service.jpg) center top no-repeat;
	  height: 490px;
	}
	.feature .title {
	  padding: 30px 20px;
	  color: #fff !important;
	}
	.feature .title h2 {
	  font-size: 34px;
	  line-height: 45px;
	  font-weight: bold;
	}
	.feature .title p {
	  font-size: 18px;
	  color: #fff;
	}
	.feature .content {
	  width: 700px;
	  margin: 0 auto;
	}
	.feature .content .dis {
	width: 175px;
}
}

/* 中等屏幕（桌面显示器，大于等于 992px） */
@media (min-width: 992px) {
	.product .thumbnail .number {
	  position: absolute;
	  left: 42%;
	  bottom: 36%;
	  width: 72px;
	  height: 72px;
	  line-height: 68px;
	  text-align: center;
	}
}

/* 大屏幕（大桌面显示器，大于等于 1200px） */
@media (min-width: 1200px) {
	.product .title {
		font-size: 38px;
	  margin: 30px 0;
	  color: #ffc001;
	}
	.product .thumbnail .number {
	  position: absolute;
	  left: 42%;
	  bottom: 29%;
	  width: 72px;
	  height: 72px;
	  line-height: 68px;
	  text-align: center;
	  border-radius: 50%;
	  font-size: 30px;
	  background: #ffc001;
	  border: 4px solid #fff;
	  color: #fff;
	}
	.feature {
	  margin-top: 20px;
	  background: url(../images/service.jpg) center top no-repeat;
	  height: 600px;
	}
	.feature .title {
	  padding: 50px 0;
	  color: #fff !important;
	}
	.feature .title h2 {
	  font-size: 34px;
	  font-weight: bold;
	}
	.feature .title p {
		margin-top: 40px;
	  font-size: 18px;
	  color: #fff;
	}
	.feature .content {
	  width: 1000px;
	  margin: 0 auto;
	}
		.feature .content .dis {
	width: 250px;
}
}