.header {
     height: 90px;
     background: #fff;
     padding: 20px 0;
     box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
     position: sticky;
     top: 0;
     z-index: 100;
 }
 
 .nav-container {
     max-width: 1200px;
     margin: 0 auto;
     display: flex;
     justify-content: space-between;
     align-items: center;
 }
 
 .logo {
     display: flex;
     align-items: center;
     gap: 8px;
     font-size: 32px;
     font-weight: bold;
     color: #333;
 }
 
 .logo-icon {
     width: 43px;
     height: 43px;
     background: url(../imgs/logo.png) no-repeat center;
     background-size: 100%;
     display: flex;
     align-items: center;
     justify-content: center;
     margin-right: 14px;
 }
 
 .search {
     width: 106px;
     height: 44px;
     background: #01C291;
     border-radius: 15px 15px 15px 15px;
     display: flex;
     align-items: center;
     justify-content: center;
     font-size: 20px;
     color: #fff;
     cursor: pointer;
 }
 
 .search:hover {
     background-color: #00A37A;
 }
 
 .search:active {
     background-color: #01C291;
 }
 
 .search .search-icon {
     width: 24px;
     height: 24px;
     background: url(../imgs/search.png) no-repeat center;
     background-size: 100%;
     margin-right: 10px;
     display: flex;
     align-items: center;
     justify-content: center;
 }
 
 .hero {
     width: 100%;
     height: 618px;
     background: url(../imgs/banner_bg.png) no-repeat center;
     background-size: cover;
     position: relative;
     overflow: hidden;
 }
 
 .hero-container {
     max-width: 1200px;
     margin: 130px auto;
     display: grid;
     grid-template-columns: 1fr 1fr;
     gap: 60px;
     align-items: center;
     position: relative;
     z-index: 1;
 }
 
 .hero-content h1 {
     font-size: 40px;
     color: #fff;
     font-weight: bold;
     margin-bottom: 30px;
     line-height: 60px;
 }
 
 .hero-content p {
     color: #fff;
     font-size: 20px;
     margin-bottom: 50px;
     line-height: 1.8;
 }
 
 .hero-btn {
     width: 389px;
     height: 67px;
     background: #01C291;
     border-radius: 42px 42px 42px 42px;
     color: #fff;
     border: none;
     cursor: pointer;
     font-size: 24px;
     font-weight: bold;
     display: inline-block;
     transition: all 0.3s;
 }
 
 .hero-btn:hover {
     background-color: #00A37A;
 }
 
 .hero-btn:active {
     background-color: #20E3B2;
 }
 
 .hero-image {
     width: 570px;
     height: 359px;
 }
 
 .hero-image img {
     width: 100%;
 }
 
 .features {
     padding: 50px 0;
     margin: 70px 0;
     background-color: #fff;
 }
 
 .features-container {
     max-width: 1200px;
     margin: 0 auto;
     display: flex;
     justify-content: space-between;
 }
 
 .features-image {
     width: 570px;
     height: 359px;
     border-radius: 15px;
     background: url(../imgs/fun_bg.png) no-repeat center;
     background-size: 100%;
     display: flex;
     align-items: center;
     justify-content: center;
 }
 
 .features-image img {
     width: 550px;
 }
 
 .features-content {
     width: 560px;
     margin-right: 20px;
 }
 
 .features-title {
     text-align: left;
     font-size: 36px;
     color: #333;
     margin-bottom: 30px;
     line-height: 43px;
 }
 
 .features-subtitle {
     color: #5E574C;
     font-size: 22px;
     line-height: 34px;
     margin-bottom: 60px;
 }
 
 .features-grid {
     width: 400px;
     display: grid;
     grid-template-columns: repeat(3, 1fr);
     gap: 20px;
     margin-bottom: 60px;
 }
 
 .feature-card {
     width: 150px;
     height: 150px;
     border-radius: 25px;
     text-align: center;
     box-shadow: 0 1px 8px 2px rgba(0, 0, 0, 0.04);
     display: flex;
     flex-direction: column;
     align-items: center;
     justify-content: center;
     cursor: pointer;
 }
 
 .feature-card:hover {
     border: 1px solid #C8C8C8;
 }
 
 .feature-icon {
     width: 64px;
     height: 64px;
     margin-bottom: 10px;
 }
 
 .feature-title {
     font-size: 20px;
     color: #000;
 }
 
 .section-title {
     text-align: center;
     font-size: 40px;
     color: #333;
 }
 
 .advantages-grid {
     display: grid;
     grid-template-columns: repeat(2, 1fr);
     /* gap: 60px; */
     margin-top: 70px;
     display: flex;
     flex-wrap: wrap;
     justify-content: space-between;
 }
 
 .advantage-card {
     width: 570px;
     height: 298px;
     border-radius: 45px;
     padding: 0 40px;
     position: relative;
     overflow: hidden;
     margin-bottom: 70px;
 }
 
 .advantage-card::after {
     content: '';
     display: block;
     width: 398px;
     height: 298px;
     position: absolute;
     top: 0;
     right: 0;
     bottom: 0;
     z-index: 1;
 }
 
 .advantage-card:nth-child(1) {
     background: #E7F0FF;
 }
 
 .advantage-card:nth-child(1)::after {
     background: url(../imgs/w_1.png) no-repeat center;
     background-size: 100%;
 }
 
 .advantage-card:nth-child(2) {
     background: #E5F6FF;
 }
 
 .advantage-card:nth-child(2)::after {
     background: url(../imgs/w_2.png) no-repeat center;
     background-size: 100%;
 }
 
 .advantage-card:nth-child(3) {
     background: #E8F9F1;
 }
 
 .advantage-card:nth-child(3)::after {
     background: url(../imgs/w_3.png) no-repeat center;
     background-size: 100%;
 }
 
 .advantage-card:nth-child(4) {
     background: #E1EFFF;
 }
 
 .advantage-card:nth-child(4)::after {
     background: url(../imgs/w_4.png) no-repeat center;
     background-size: 100%;
 }
 
 .advantage-card:hover {
     box-shadow: 0 1px 8px 2px rgba(0, 0, 0, 0.2);
 }
 
 .advantage-content {
     position: relative;
     z-index: 1;
 }
 
 .advantage-title {
     font-size: 32px;
     font-weight: bold;
     margin-top: 110px;
     margin-bottom: 40px;
     color: #2C3E50;
     position: relative;
 }
 
 .advantage-title::before {
     content: '';
     display: block;
     height: 20px;
     border-radius: 12px;
     position: absolute;
     top: 30px;
     left: 0;
     z-index: -1;
 }
 
 .advantage-card:nth-child(1) .advantage-title::before {
     width: 210px;
     background-color: #C5DBFF;
 }
 
 .advantage-card:nth-child(2) .advantage-title::before {
     width: 230px;
     background-color: #B8E7FF;
 }
 
 .advantage-card:nth-child(3) .advantage-title::before {
     width: 210px;
     background-color: #B2F0D3;
 }
 
 .advantage-card:nth-child(4) .advantage-title::before {
     width: 210px;
     background-color: #C5DBFF;
 }
 
 .advantage-desc {
     font-size: 20px;
     color: #666;
     line-height: 32px;
 }
 
 .footer {
     background: #1a1a1a;
     color: #999;
     padding: 30px 20px;
     text-align: center;
     font-size: 14px;
     line-height: 1.8;
 }
 
 .footer a {
     color: #999;
     text-decoration: none;
 }
 
 .footer a img {
     display: inline-block;
     width: 20px;
     height: 20px;
     vertical-align: middle;
 }
 
 @media (max-width: 768px) {
     .hero-container {
         grid-template-columns: 1fr;
         gap: 40px;
     }
     .features-grid {
         grid-template-columns: 1fr;
     }
     .advantages-grid {
         grid-template-columns: 1fr;
     }
     .hero-content h1 {
         font-size: 32px;
     }
 }