* {
  margin: 0;
  padding: 0;
}
body,
#app {
  height: 100%;
  background: #f4f5f6;
  color: #2b2e4a;
}
#header {
  height: 80px;
  width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#logo {
  height: 80px;
  width: 149px;
  height: 22px;
}
#nav {
  height: 80px;
  width: 720px;
  font-size: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#nav a {
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
#introduce {
  /* background: #ffffff; */
  padding-top: 80px;
  height: 507px;
  box-sizing: border-box;
}

.introduce-content {
  width: 1400px;
  margin: 0 auto;
}
.introduce-content h1 {
    font-size: inherit; /* 重置字体大小 */
    color: inherit; /* 继承父元素的文字颜色 */
    font-weight: 600;
}
.introduce-content > div:first-child,
.introduce-content > div:nth-child(2) {
  font-weight: 600;
  font-size: 56px;
}
.introduce-content > div:nth-child(3) {
  font-weight: 400;
  font-size: 16px;
  padding: 20px 0 54px;
}
.introduce-content > div:last-child {
  display: flex;
}
.introduce-content > div:last-child > div {
  width: 185px;
  line-height: 52px;
  background: #3742fa;
  box-shadow:
    0px 8px 8px -4px rgba(24, 39, 75, 0.08),
    0px 4px 6px -4px rgba(24, 39, 75, 0.12);
  border-radius: 26px;
  text-align: center;
  font-size: 14px;
  color: #ffffff;
  letter-spacing: 1px;
  margin-right: 30px;
}
#main {
  background: url("../static/index/watermark.png") no-repeat 220px 1000px;
  background-size: 800px 130px;
}
.main-title {
  padding-top: 90px;
  font-weight: 600;
  font-size: 56px;
  color: #2b2e4a;
  line-height: 72px;
  text-align: center;
}
.main-title span {
  color: #3742fa;
  display: inline-block;
  margin-left: 30px;
}
.main-desc {
  /* font-weight: 500; */
  font-size: 16px;
  color: #2b2e4a;
  line-height: 24px;
  text-align: center;
  padding-top: 16px;
  padding-bottom: 70px;
  width: 500px;
  margin: 0 auto;
}
.main-desc h3,.main-title h2  {
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  margin: 0;
}


.main-explain{
  margin: 0 auto;
  width: 1280px;
}
.main-explain .example-content {
  background: #FFFFFF;
  border-radius: 26px;
  display: flex;
  justify-content: space-between;
  padding: 50px 100px 0 27px;
  margin-bottom: 24px;
}
 .example-content img{
  display: block;
  height: 431px;
  width: auto;
 }
 .example-left{
  width: 54%;
 }
.example-left .example-index{
  font-weight: 600;
font-size: 70px;
color: #CCCDD4;
margin-top:-25px;
padding-left: 48px;
}
.example-left .example-title{
  font-weight: 600;
font-size: 20px;
color: #000000;
padding-top: 10px;
padding-bottom: 10px;
}
.example-left .example-desc{
  font-weight: 300;
font-size: 16px;
color: #2B2E4A;
line-height: 31px;
}
.example-btn{
  display: flex;
  padding-top: 30px;
}
.example-btn>div{
  width: 164px;
line-height: 52px;
background: #EAEBFE;
border-radius: 24px;
text-align: center;
font-weight: 600;
font-size: 14px;
color: #3742FA;
margin-right: 25px;
}
.main-explain>div:last-child{
  display: flex;
  justify-content: space-between;
  gap:24px;
} 
.main-explain>div:last-child .example-left{
  padding: 50px 40px 50px 27px;
  background: #FFFFFF;
border-radius: 26px;
}

.main-policy{
  width: 1280px;
  background: #FFFFFF;
  border-radius: 26px;
  margin: 0 auto;
  display: flex;
  padding:50px 40px;
  box-sizing: border-box;
  gap: 30px;
}
.main-policy>div:first-child{
  width:45% ;
}
.main-policy>div:first-child>div:first-child,.main-policy>div:last-child>div:first-child{
 font-weight: 600;
  font-size: 20px;
  color: rgba(0, 0, 0, 0.85);
  padding-bottom: 23px;
}
.main-policy .course-content {
  position: relative;
}
.course-content .course-line {
  position: absolute;
  top: 0;
  left: 5px;
  height: calc(100% - 24px);
  background: #1677ff;
  padding-left: 3px;
  box-sizing: border-box;
}    
.course-line div {
  width: 8px;
  height: 8px;
  background: #1677ff;
  border-radius: 50%;
  position: absolute;
  top: 0;
  left: -2px;
}
.course-content .course-line>div:nth-child(2) {
  top: 41%;
}
.course-content .course-line>div:nth-child(3) {
  top: 86%;
} 

.course-content > div {
  padding-left: 30px;
  height: 218px;
}
.course-content > div:last-child {
  height: auto;
}
.course-content > div > div:first-child {
  font-weight: 600;
  font-size: 14px;
  color: #3742fa;
}
.course-content > div > div:nth-child(2) {
  font-weight: 600;
  font-size: 18px;
  color: #000000;
  line-height: 20px;
  margin: 6px 0;
}
.course-content > div > div:nth-child(3) {
  font-weight: 300;
  font-size: 14px;
  color: #2b2e4a;
  line-height: 20px;
}
.main-policy>div:last-child{
  width: 50%;
  flex: 1;
}
.policy-floor{
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #F7F8F9;
border-radius: 10px;
padding: 18px 24px;
margin-bottom: 20px;
}
.policy-floor>div{
  display: flex;
  /* justify-content: center; */
  align-items: center;
}
.policy-floor>div>div:first-child{
  width: 18px;
  height: 18px;
  border: 2px solid #EF7A59;
  border-radius: 50%;
  flex:0 0 auto;
}
.policy-desc{
  margin-left: 18px;
  width: 100%;
}
.policy-desc>div:first-child{
  font-weight: 600;
font-size: 16px;
color: #2B2E4A;
line-height: 22px;
padding-bottom: 5px;
display: flex;
align-items: center;
justify-content: space-between;
}
.policy-desc>div:first-child a{
  color: #3742fa;
  text-decoration: none;
  font-weight: normal;
  font-size: 12px;
}
.policy-desc>div:first-child span{
  font-size: 12px;
  color: #8C8C8C;
  font-weight: normal;
}
.policy-desc>div:nth-child(2) {
  font-weight: 300;
font-size: 14px;
color: #2B2E4A;
line-height: 20px;
}

.main-core {
  margin: 0 auto 50px;
  width: 1280px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-gap: 40px;
}
.main-core > div {
  box-sizing: border-box;
  background: #ffffff;
  border-radius: 26px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  /* justify-content: center;
  align-items: center; */
}
.main-core > div img {
  width: 40px;
  height: 40px;
}
.main-core > div div:nth-child(2) {
  font-weight: 600;
  font-size: 20px;
  color: #000000;
  margin: 16px 0;
}
.main-core > div div:nth-child(3) {
  font-size: 16px;
  color: #2b2e4a;
  line-height: 24px;
}

.main-online{
  margin: 0 auto;
  width: 1280px;
  box-sizing: border-box;
  padding: 50px 100px 60px;
  background: #FFFFFF;
border-radius: 26px;
}
.main-online .online-title{
  font-weight: 600;
  font-size: 56px;
  color: #2b2e4a;
  line-height: 72px;
  text-align: center;
}
.main-online .online-desc{
  font-size: 16px;
  color: #2b2e4a;
  line-height: 24px;
  text-align: center;
  padding-top: 16px;
  width: 500px;
  margin: 0 auto;
}
.online-step{
  padding:0 80px;
}
.online-step>div:first-child{
  width: 100%;
  height: 2px;
  background: #D9D9D9;
  margin-top: 60px;
}
.online-step-number{
  position: relative;
}
.online-step-number>div{
 position: absolute;
 top: -24px;
 left: -12px;
 width: 48px;
height: 48px;
background: #1677FF;
 display: flex;
 justify-content: center;
 align-items: center;
 font-weight: 400;
font-size: 21px;
color: #FFFFFF;
border-radius: 50%;
}
.online-step-number>div:nth-child(2){
  left: 23%;
}
.online-step-number>div:nth-child(3){
  left: 47%;
}
.online-step-number>div:nth-child(4){
  left: 72%;
}
.online-step-number>div:nth-child(5){
  left: 96%;
}
.online-step-desc{
  display: flex;
  justify-content: space-between;
  margin-top: 50px;
}
.online-step-desc>div{
  width: 17%;
  text-align: center;
  /* border: 1px solid red; */

 }
.online-step-desc>div>div:first-child{
 font-weight: 500;
font-size: 16px;
color: rgba(0,0,0,0.85);
line-height: 24px;
}
.online-step-desc>div>div:nth-child(2){
font-weight: 300;
font-size: 12px;
color: #2B2E4A;
line-height: 24px;
}

.main-case > div {
  width: 1280px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 18px;
  padding: 43px 80px;
  display: flex;
  margin-bottom: 23px;
  box-sizing: border-box;
}
.case-content {
  flex: 1;
  color: #000000;
}
.case-content .case-title {
  font-weight: 600;
  font-size: 18px;
  line-height: 20px;
  letter-spacing: 2px;
}
.case-content .case-time {
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 1px;
  padding: 10px 0 14px;
}

.case-content > div:last-child {
  font-weight: 500;
  font-size: 14px;
  color: #3742fa;
  letter-spacing: 1px;
  padding-top: 10px;
}
.case-content > div:last-child span {
  background: #3742fa;
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  margin-right: 5px;
  margin-top: 2px;
}
.case-btn {
  width: 133px;
  line-height: 36px;
  background: #3742fa;
  text-align: center;
  box-shadow:
    0px 8px 8px -4px rgba(24, 39, 75, 0.08),
    0px 4px 6px -4px rgba(24, 39, 75, 0.12);
  border-radius: 24px;
  font-size: 14px;
  color: #ffffff;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.main-pricing{
  width: 1280px;
background: #FFFFFF;
border-radius: 8px;
margin: 0 auto;
padding:56px 0;
}
.main-pricing>div{
  width: 400px;
  margin: 0 auto;
  text-align: center;
}
.main-pricing>div:first-child{
  font-weight: 600;
font-size: 24px;
color: #2E2E2E;
margin-bottom: 30px;
}
.main-pricing>div:nth-child(2){
  font-weight: 600;
font-size: 64px;
color: #2E2E2E;
margin-bottom: 46px;
}
.main-pricing>div:nth-child(3){
  text-align: left;
  line-height: 46px;
  font-weight: 500;
font-size: 16px;
color: #000000;
}
.main-pricing>div:nth-child(3) span{
  display: inline-block;
  margin-right: 20px;
}
.main-pricing>div:last-child{
  margin-top: 50px;
  line-height: 67px;
background: #3742FA;
border-radius: 8px;
font-weight: 600;
font-size: 20px;
color: #FFFFFF;
}

.main-problem{
  /* margin-bottom: 70px; */
}
.main-problem .problem-content{
  width: 1280px;
padding: 22px 54px;
background: #FFFFFF;
border-radius: 10px;
margin: 0 auto;
box-sizing: border-box;
margin-bottom: 20px;
cursor: pointer;
}
.problem-content .problem-title{
 font-weight: 600;
font-size: 18px;
color: #2B2E4A;
display: flex;
justify-content: space-between;
align-items: center;
}
.problem-title img{
  width: 26px;
  height: 18px;
}
.problem-content.active .problem-title img{
  transform: rotate(180deg);
}
.problem-content .problem-desc{
  margin-top: 10px;
 font-weight: 300;
font-size: 14px;
color: #2B2E4A;
line-height: 24px;
display: none;
}



.main-consult {
  padding: 50px 80px 50px;
  margin-top: 40px;
  width: 1280px;
  margin: 0 auto;
  background: linear-gradient( 90deg, #324FBC 0%, #4D71F8 70.63%, #496EF6 100%);
  border-radius: 26px;
  box-sizing: border-box;
  display: flex;
  font-size: 16px;
  color: #ffffff;
}
.consult-content {
  flex: 1;
}
.consult-content > div:first-child {
  font-weight: 600;
  font-size: 56px;
  line-height: 64px;
}
.consult-content > div:nth-child(2) {
  font-weight: 600;
  padding: 20px 0 27px;
}
.consult-phone {
  font-weight: 400;
  line-height: 26px;
}
.consult-btn {
  width: 230px;
  height: 52px;
  line-height: 52px;
  border-radius: 26px;
  /* border: 2px solid #3742fa; */
  text-align: center;
  color: #3742fa;
  box-sizing: border-box;
  align-self: end;
  background: #FFFFFF;
}
.consult-btn a {
  color: #3742fa;
  text-decoration: none;
}



.main-content {
  margin: 0 auto 60px;
  width: 1280px;
  background: #FFFFFF;
  border-radius: 28px;
}

.main-content > div:first-child {
 height: 341px;
 background: url("../static/traceCode/contentBackground.webp") no-repeat 0 0;
 background-size: 100% auto;
 display: flex;
 justify-content: flex-start;
 align-items: center;
}
.main-content > div:first-child>div{
  font-weight: 600;
font-size: 18px;
color: #000000;
line-height: 35px;
width: 560px;
margin-left: 50px;
}
.main-content > div:last-child{
  padding: 20px 40px;
}
.content-item{
  margin-bottom: 25px;
}
.content-item>div:first-child{
  font-weight: 600;
font-size: 18px;
color: #000000;
margin-bottom: 10px;
}
.content-item>div:last-child{
  padding-left: 30px;
  font-weight: 300;
font-size: 16px;
line-height: 30px;
}


.footer {
  margin-top: 80px;
  background: #ffffff;
}
.footer > div:first-child {
  display: flex;
  justify-content: space-between;
  width: 1280px;
  margin: 0 auto;
  box-sizing: border-box;
  padding-top: 80px;
  padding-bottom: 40px;
  border-bottom: 1px solid #979797;
}
.footer > div:first-child img {
  width: 130px;
  height: 20px;
}
.footer > div:first-child > div {
  width: 360px;
}
.footer > div:first-child > div > div {
  font-size: 12px;
  line-height: 24px;
}
.footer > div:first-child > div > div:first-child {
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 20px;
}
.footer > div:last-child {
  text-align: center;
  font-weight: bold;
  font-size: 12px;
  color: #6e6f81;
  padding: 20px 0;
}
.footer > div:last-child a {
  color: inherit;
  text-decoration: none;
}
.footer > div:first-child .footer-middle {
  width: 140px;
}
.footer-middle > div:not(:first-child) {
  cursor: pointer;
}
.footer-middle > div:not(:first-child):hover {
  color: #1677ff;
}
.footer-middle a {
  color: inherit;
  text-decoration: none;
}
#nav a:hover {
  color: #3742fa;
}
/* 桌面端隐藏汉堡按钮 */
#nav-toggle {
  display: none;
}
.nav-toggle-btn {
  display: none;
}

@media (min-width: 992px){
  .head-bg{
    background: url('../static/index/headerBackground.webp') no-repeat 0 0;
    background-size: 100% auto;
  }
}

/* 平板及移动端导航折叠菜单 (≤991px) */
@media (max-width: 991px) {
  .nav-toggle-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 24px;
    cursor: pointer;
  }
  .nav-toggle-btn span {
    display: block;
    height: 3px;
    width: 100%;
    background: #2b2e4a;
    border-radius: 2px;
    transition: all 0.3s ease;
  }
  /* 展开时汉堡按钮变为关闭图标 */
  #nav-toggle:checked ~ .nav-toggle-btn span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  #nav-toggle:checked ~ .nav-toggle-btn span:nth-child(2) {
    opacity: 0;
  }
  #nav-toggle:checked ~ .nav-toggle-btn span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  #header {
    position: relative;
    width: 100%;
    height: auto;
    padding: 16px 20px;
    box-sizing: border-box;
  }
  #logo {
    height: 22px;
  }
  #nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    height: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    font-size: 15px;
    background: #ffffff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
    padding: 0 20px;
    box-sizing: border-box;
    z-index: 100;
  }
  #nav > a {
    display: block;
    width: 100%;
    padding: 14px 4px;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
  }
  #nav > a:hover {
    background: #f4f5f6;
    color: #3742fa;
    padding-left: 14px;
  }
  #nav > a:last-child {
    border-bottom: none;
  }
  /* 勾选时展开导航 */
  #nav-toggle:checked ~ #nav {
    display: flex;
  }
}

/* 平板端适配 (768px - 991px) */
@media only screen and (min-width: 768px) and (max-width: 991px) {
  #introduce {
    height: auto;
    padding: 48px 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f4f5f6 100%);
  }
  .introduce-content {
    width: 100%;
    box-sizing: border-box;
  }
  .introduce-content > div:first-child,
  .introduce-content > div:nth-child(2) {
    font-size: 40px;
    line-height: 56px;
    text-align: center;
  }
  .introduce-content > div:nth-child(3) {
    padding: 16px 0 32px;
  }
  .introduce-content > div:last-child {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    padding: 0 40px;
    box-sizing: border-box;
  }
  .introduce-content > div:last-child > div {
    margin-right: 0;
  }
  .main-title {
    padding: 56px 24px 0;
    font-size: 40px;
    line-height: 56px;
  }
  .main-desc {
    width: 90%;
    padding-bottom: 48px;
  }
  .main-centre {
    width: 100%;
    flex-direction: column;
    padding: 0 24px;
    box-sizing: border-box;
    gap: 24px;
  }
  .main-centre > div:first-child {
    width: 100%;
    height: auto;
  }
  .main-centre .centre-content {
    width: 100%;
    height: auto;
    gap: 12px;
  }
  .main-explain {
    width: 100%;
    padding: 0 24px;
    box-sizing: border-box;
  }
  .main-explain .example-content {
    flex-direction: column;
    padding: 36px 28px;
    align-items: center;
    gap: 24px;
  }
  .main-explain .example-content:first-child img {
    width:50%;
    margin: 0 auto;
  }
  .example-left {
    width: 100%;
  }
  .example-content img {
    height: auto;
    max-width: 100%;
  }
  .main-explain > div:last-child {
    flex-direction: column;
  }
  .main-explain > div:last-child .example-left {
    padding: 36px 28px;
    box-sizing: border-box;
  }
  .example-btn {
    flex-wrap: wrap;
    gap: 16px;
  }
  .example-btn > div {
    margin-right: 0;
  }
  .main-policy {
    width: calc(100% - 48px);
    flex-direction: column;
    padding: 36px 28px;
    gap: 36px;
  }
  .main-policy > div:first-child,
  .main-policy > div:last-child {
    width: 100%;
  }
  .main-core {
    width: 100%;
    grid-template-columns: repeat(2, 1fr);
    padding: 0 24px;
    box-sizing: border-box;
    grid-gap: 24px;
  }
  .main-online {
    width: calc(100% - 48px);
    padding: 40px 40px 48px;
  }
  .online-step {
    padding: 0 20px;
  }
  .main-case > div {
    width: calc(100% - 48px);
    padding: 32px 28px;
  }
  .main-pricing {
    width: calc(100% - 48px);
    padding: 48px 0;
  }
  .main-problem .problem-content {
    width: calc(100% - 48px);
    padding: 22px 28px;
  }
  .main-consult {
    width: calc(100% - 48px);
    flex-direction: column;
    align-items: stretch;
    padding: 48px 28px;
    gap: 32px;
    text-align: center;
  }
  .consult-content > div:first-child {
    font-size: 40px;
    line-height: 52px;
  }
  .consult-btn {
    align-self: center;
  }
  .footer > div:first-child {
    width: 100%;
    padding: 48px 24px;
    flex-wrap: wrap;
    gap: 32px;
  }
  .footer > div:first-child > div {
    width: 45%;
  }
   .footer > div:first-child .footer-middle {
    width: 45%;
   }
  .example-left .example-index {
    font-size: 52px;
    margin-top: -18px;
    padding-left: 24px;
  }
  .example-left .example-title {
    font-size: 18px;
  }
  .example-left .example-desc {
    font-size: 15px;
    line-height: 28px;
  }
  .main-content {
    width: calc(100% - 48px);
    margin: 0 auto 40px;
    box-sizing: border-box;
  }
  .main-content > div:first-child {
    height: auto;
    padding: 40px 28px;
    box-sizing: border-box;
  }
  .main-content > div:first-child > div {
    width: 60%;
    margin-left: 0;
    font-size: 16px;
    line-height: 28px;
  }
  .main-content > div:last-child {
    padding: 24px 28px;
  }
  .content-item > div:last-child {
    padding-left: 0;
  }
}

/* 移动端适配 (<768px) */
@media (max-width: 767px) {
  #introduce {
    height: auto;
    padding: 32px 16px;
    background: linear-gradient(180deg, #ffffff 0%, #f4f5f6 100%);
  }
  .introduce-content {
    width: 100%;
    box-sizing: border-box;
  }
  .introduce-content > div:first-child,
  .introduce-content > div:nth-child(2) {
    font-size: 28px;
    line-height: 40px;
    text-align: center;
  }
  .introduce-content > div:nth-child(3) {
    font-size: 14px;
    padding: 14px 0 28px;
    line-height: 24px;
  }
  .introduce-content > div:last-child {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 0 16px;
    box-sizing: border-box;
  }
  .introduce-content > div:last-child > div {
    padding: 8px 12px;
    line-height: normal;
    margin-right: 0;
    font-size: 12px;
    width:fit-content
  }
  .main-title {
    padding: 40px 16px 0;
    font-size: 26px;
    line-height: 38px;
  }
  .main-desc {
    width: 92%;
    font-size: 14px;
    padding: 12px 0 36px;
  }
  .main-centre {
    width: 100%;
    flex-direction: column;
    padding: 0 16px;
    box-sizing: border-box;
    gap: 20px;
  }
  .main-centre > div:first-child {
    width: 100%;
    height: auto;
    padding: 28px 20px;
    border-radius: 18px;
    font-size: 14px;
  }
  .main-centre > div:first-child > div:nth-child(2) {
    font-size: 18px;
    padding: 20px 0 12px;
  }
  .main-centre > div:first-child > div:nth-child(3) {
    font-size: 14px;
    line-height: 24px;
  }
  .main-centre .centre-content {
    width: 100%;
    height: auto;
    gap: 12px;
  }
  .centre-content > div {
    padding: 12px 16px;
  }
  .centre-content > div .centre-title {
    font-size: 15px;
  }
  .main-explain {
    width: 100%;
    padding: 0 16px;
    box-sizing: border-box;
  }
  .main-explain .example-content {
    flex-direction: column;
    padding: 28px 20px;
    align-items: stretch;
    gap: 20px;
    border-radius: 18px;
  }
  .example-left {
    width: 100%;
  }
  .example-left .example-index {
    font-size: 48px;
    padding-left: 0;
    margin-top: 0;
  }
  .example-left .example-title {
    font-size: 18px;
  }
  .example-left .example-desc {
    font-size: 14px;
    line-height: 26px;
  }
  .example-content img {
    height: auto;
    width: 231px;
    margin: 0 auto;
  }
  .main-explain > div:last-child {
    flex-direction: column;
  }
  .main-explain > div:last-child .example-left {
    padding: 28px 20px;
    border-radius: 18px;
    box-sizing: border-box;
  }
  .example-btn {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 20px;
  }
  .example-btn > div {
    padding: 8px 12px;
    line-height: normal;
    margin-right: 0;
    font-size: 12px;
    width:fit-content
  }
  .main-policy {
    width: calc(100% - 32px);
    flex-direction: column;
    padding: 28px 18px;
    gap: 28px;
    border-radius: 18px;
  }
  .main-policy > div:first-child,
  .main-policy > div:last-child {
    width: 100%;
  }
  .main-policy > div:first-child > div:first-child,
  .main-policy > div:last-child > div:first-child {
    font-size: 18px;
  }
  .course-content > div {
    height: auto;
    padding-bottom: 24px;
  }
  .policy-floor {
    padding: 14px 16px;
  }
  .main-core {
    width: 100%;
    grid-template-columns: repeat(2, 1fr);
    padding: 0 16px;
    box-sizing: border-box;
    grid-gap: 16px;
  }
  .main-core > div {
    padding: 18px 16px;
    border-radius: 18px;
  }
  .main-core > div div:nth-child(2) {
    font-size: 18px;
    margin: 10px 0;
  }
  .main-core > div div:nth-child(3) {
    font-size: 13px;
  }
  .main-online {
    width: calc(100% - 32px);
    padding: 32px 16px 40px;
    border-radius: 18px;
    box-sizing: border-box;
  }
  .online-step {
    padding:0 25px;
  }
  .main-online .online-title {
    font-size: 30px;
    line-height: 44px;
  }
 .online-step-number>div {
    position: absolute;
    top: -24px;
    left: -20px;
    width: 40px;
    height: 40px;
    background: #1677FF;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 400;
    font-size: 21px;
    color: #FFFFFF;
    border-radius: 50%;
}
.online-step-number>div:nth-child(2){
  left: 19%;
}
.online-step-number>div:nth-child(3){
  left: 45%;
}
.online-step-number>div:nth-child(4){
  left: 70%;
}
.online-step-number>div:nth-child(5){
  left: 96%;
}
  .course-content .course-line>div:nth-child(2) {
  top: 31%;
}
.course-content .course-line>div:nth-child(3) {
  top: 67%;
} 
  .main-online .online-desc {
    width: 90%;
    font-size: 14px;
  }
  .online-step-desc > div > div:first-child {
    font-size: 14px;
  }
  .online-step-desc > div > div:nth-child(2) {
    font-size: 11px;
  }
  .main-case > div {
    width: calc(100% - 32px);
    padding: 24px 18px;
    border-radius: 18px;
  }
  .case-content .case-title {
    font-size: 16px;
    letter-spacing: 1px;
  }
  .case-content .case-time {
    font-size: 12px;
    line-height: 20px;
  }
  .main-pricing {
    width: calc(100% - 32px);
    padding: 40px 0;
    border-radius: 18px;
  }
  .main-pricing > div {
    width: 90%;
  }
  .main-pricing > div:first-child {
    font-size: 18px;
  }
  .main-pricing > div:nth-child(2) {
    font-size: 44px;
    margin-bottom: 32px;
  }
  .main-pricing > div:nth-child(3) {
    font-size: 14px;
    line-height: 36px;
  }
  .main-pricing > div:last-child {
    line-height: 56px;
    font-size: 16px;
    width: 50%;
  }
  .main-problem .problem-content {
    width: calc(100% - 32px);
    padding: 18px;
    border-radius: 12px;
  }
  .problem-content .problem-title {
    font-size: 15px;
  }
  .problem-content .problem-desc {
    font-size: 13px;
    line-height: 22px;
  }
  .main-consult {
    width: calc(100% - 32px);
    margin: 32px auto 0;
    flex-direction: column;
    align-items: stretch;
    padding: 36px 20px;
    border-radius: 18px;
    gap: 22px;
    text-align: center;
  }
  .consult-content > div:first-child {
    font-size: 26px;
    line-height: 38px;
  }
  .consult-content > div:nth-child(2) {
    font-size: 14px;
  }
  .consult-btn {
    width: 230px;
    align-self: center;
  }
  .footer {
    margin-top: 56px;
  }
  .footer > div:first-child {
    width: 100%;
    flex-direction: column;
    padding: 36px 20px;
    gap: 28px;
  }
  .footer > div:first-child > div {
    width: 100%;
  }
  .footer > div:first-child .footer-middle {
    width: 100%;
  }
  .footer > div:last-child {
    padding: 16px 20px;
    font-size: 11px;
    line-height: 18px;
  }
  .main-content {
    width: calc(100% - 32px);
    margin: 0 auto 32px;
    border-radius: 18px;
  }
  .main-content > div:first-child {
    height: auto;
    padding: 12px 12px;
    box-sizing: border-box;
    background-size: 100% auto;
  }
  .main-content > div:first-child > div {
    width: 100%;
    margin-left: 0;
    font-size: 12px;
    line-height: 20px;
    font-weight: 400;
  }
  .main-content > div:last-child {
    padding: 20px 16px;
  }
  .content-item {
    margin-bottom: 20px;
  }
  .content-item > div:first-child {
    font-size: 16px;
    margin-bottom: 8px;
  }
  .content-item > div:last-child {
    padding-left: 0;
    font-size: 14px;
    line-height: 26px;
  }
}