*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    font-size: 16px;
}
.main{
    width: auto;
    overflow-x: hidden;
}
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    position: fixed;
    width: 100%;
    padding: 0 10.5%;
    z-index: 9999999999999999999999;
}
.nav{
    display: flex;
    width: auto;
    justify-content: flex-end;
    padding: 1.5rem 0;
    flex-wrap: wrap;
}
.nav div {
    
    font-size: 1rem;
    color: #838A99;
    cursor: pointer;
    margin: 0 0.8rem;
    white-space: nowrap;
    
}
.mf-btn {
    font-size: 1rem;
    background: linear-gradient( 90deg, #6643DB 0%, #8B0AD3 100%);
    box-shadow: 0px 3px 6px 1px rgba(18,18,18,0.2);
    border-radius: 22px;
    padding: 0.6rem 1.5rem;
    color: #fff;
    cursor: pointer;
    margin-left: 1rem;
    white-space: nowrap;
}
.xhx {
    width: 10px;
    height: 4px;
    background: #9703C9;
    border-radius: 2px;
    margin-top: 4px;
    
}
.title {
 

    width: 100%;
    min-height: 40rem;
    background: linear-gradient( 180deg, #ECEFFE 0%, #FFFFFF 100%);
    text-align: center;
    padding: 0 5%;
}

.title img {
   
    max-width: 100%;
    height: auto;
    margin-top: 8rem;
}
.title-nr {
    background: linear-gradient(to right, #9200D2, #6248DB);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 56px;
    font-weight: bold;
}
.title-ms {
    font-weight: bold;
    font-size: 3.5rem;
    color: #1D1D1F;
    margin-top: 2.6rem;
}
.title-js {
    font-size: 1.25rem;
    color: #757D8E;
    margin-top: 2.1rem;
}
.title-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 3.75rem;
}
.title-btn-l {
    background: linear-gradient( 89deg, #6446DB 0%, #8E06D3 100%);
    border-radius: 26px 26px 26px 26px;
    font-size: 1.25rem;
    color: #FFFFFF;
    padding: 1.1rem 3.5rem;
    margin-right: 1.8rem;
    cursor: pointer
}
.title-btn-r {
    background: #FFFFFF;
    border-radius: 26px 26px 26px 26px;
    border: 1px solid #DBE1EA;
    padding: 1.1rem 3.5rem;
    font-size: 1.25rem;
    color: #121212;
    margin-left: 1.8rem;
    cursor: pointer
}
.fuwu {
    text-align: center;
}
.fw-title {
    font-size: 3rem;
    color: #1D1D1F;
    font-weight: bold;
}
.fw-ms {
    font-size: 1.25rem;
    color: #757D8E;
    margin-top: 0.75rem;
}
/* 新增的服务选项卡样式 */
/* 选项卡样式 */
.service-tabs {
    display: flex;
    justify-content: center;
    margin-top: 3rem;
    flex-wrap: wrap;
    position: relative;
}

.tab {
    padding: 1rem 2rem;
    margin: 0 3.5rem;
    font-size: 1.25rem;
    color: #000;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.tab img {
    margin-right: 8px;
    width: 1.75rem;
    height: 1.75rem;
}

.tab.active {
    color: #A25BF4;
}

.tab-underline {
    width: 0;
    height: 3px;
    background: #A25BF4;
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.tab.active .tab-underline {
    width: 80%;
}

/* 悬停效果 */
.tab:hover {
    color: #A25BF4;
}

/* 内容切换动画 */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.tab-content {
    display: none;
   
   
    text-align: left;
    margin: 2rem 10.5% 0 10.5%;
}
.tab-content-nr {
    display: flex;
    align-items: center;
    
}
.tab-content-nr img {
    max-width: 100%;
    height: auto;
}
.tab-content-nr-title-r {
    margin-left: 4.3rem;
}
.tab-content-nr-ms {
    font-size: 1rem;
    color: #757D8E;
    margin-top: 1rem;
}

.tab-content.active {
    display: block;
}
.tab-content-title {
    font-size: 1.5rem;
    color: #1D1D1F;
    margin-bottom: 1rem;
    font-weight: bold;
}
.tab-content-desc {
    font-size: 1rem;
    color: #757D8E;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}
.tab-content-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}
.feature-item {
    flex: 1;
    min-width: 250px;
    padding: 1.5rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.feature-title {
    font-size: 1.2rem;
    color: #1D1D1F;
    margin-bottom: 0.8rem;
    font-weight: bold;
}
.feature-desc {
    font-size: 0.9rem;
    color: #757D8E;
    line-height: 1.5;
}
.service-buttons {
    display: flex;
    margin-top: 2rem;
    flex-wrap: wrap;
}
.service-btn {
    padding: 0.6rem 2.3rem;
    margin: 0 0.5rem;
    border-radius: 26px;
    font-size: 1rem;
    cursor: pointer;
}
.service-btn-primary {
    background: linear-gradient( 270deg, #9200D2 0%, #6249DB 100%);
    border-radius: 4px 4px 4px 4px;
    color: #FFFFFF;
}
.service-btn-secondary {
    background: #FFFFFF;
    border-radius: 4px 4px 4px 4px;
    border: 1px solid #9703C9;
    color: #9703C9;
}
.tab-content-nr-title {
    display: flex;
    align-items: center;
}
.tab-content-nr-title div {
    font-size: 1.75rem;
    color: #1D1D1F;
}
.tab-content-nr-title .xx {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 1rem;
}
.fw-top {
    margin-top: 3.1rem;
}
.fangan {
    margin-top: 11rem;
}
.fangan-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 3.75rem 10.5% 0 10.5%;
   

}
.fangan-item {
    width: 24%;
    height: 28rem;
    background: #FFFFFF;
    border-radius: 8px 8px 8px 8px;
    border: 1px solid #DBE1EA;
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
    position: relative;
}
.fangan-img1 {
    width: 6.25rem;
    height: 6.25rem;
    margin-top: 1.1rem;
}
.fangan-img2 {
    width: 7.25rem;
    height: 6rem;
   
}
.fangan-img3 {
    width: 7rem;
    height: 5.4rem;
   
}
.fangan-img4 {
    width: 5.75rem;
    height: 5.75rem;
    margin-top: 1.1rem;
}
.fangan-title {
    font-size: 1.75rem;
    color: #1D1D1F;
    margin-top: 2.1rem;
}
.fangan-ms {
    font-size: 1.1rem;
    color: #757D8E;
    line-height: 1.75rem;
    padding: 2.1rem 0.8rem;
}
.fangan-xhx {
    width: 100%;
    background: linear-gradient( 90deg, #6247DA 0%, #9100D2 100%);
    border-radius: 0px 0px 8px 8px;
    height: 10px;
    position: absolute;
    bottom: 0;
}
.lianxi {
   
    display: flex;
    margin: 3.75rem 10.5% 0 10.5%;
    height: 415px;
    justify-content: center;
}
.lianxi-l {
    background: url(../images/gt.png) no-repeat 100% 100%;
    justify-content: center;
    flex-flow: column;
    padding: 0 10%;
    align-items: center;
    text-align: center;
    height: 100%;
}
.lianxi-l-img1 {
    font-size: 1.5rem;
    margin-top: 2rem;
    background: linear-gradient(to right, #9200D2, #6248DB);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.lianxi-l-img2 {
    max-width: 100%;
    height: auto;
    margin-top: 5rem;
}
.lianxi-l-ms {
    font-size: 1rem;
    color: #1D1D1F;
    margin-top: 1rem;
    margin-bottom: 3.5rem;
}

.lianxi-r {
    display: flex;
   
    flex-flow: column;
   
    align-items: center;
    
   
    height: 100%;
    border-radius: 0px 10px 10px 0px;
    border: 1px solid #DBE1EA;
   
    padding:0 1.4rem;
    background-color: #fff; /* 背景颜色 */
}



/* 表单组样式 */
.form-group {
    margin-bottom: 15px;
}

/* 标签样式 */
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
    color: #1D1D1F;
    margin-top: 1.25rem;
}

/* 输入框和文本框样式 */
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    font-size: 1rem;
  
    background: #FFFFFF;
border-radius: 4px 4px 4px 4px;
border: 1px solid #DBE1EA;
}


/* 提交按钮样式 */
.submit-btn {
    width: 100%;
    padding: 10px;
    font-size: 1rem;
    color: #fff;
    background: linear-gradient( 270deg, #9200D2 0%, #6249DB 100%);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

/* 提交按钮悬停效果 */
.submit-btn:hover {
    background-color: #550590; /* 悬停时的背景颜色 */
}
.biandan {
    width: 320px;
}
.form-group .name {
    margin-top: 1.25rem;
}
 /* Footer 样式 */
 .footer {
    margin-top: 60px;
    width: 100%;
    background: #1D1D1F;
    text-align: center; /* 文本居中 */
    padding: 25px 0; /* 内边距 */
    color: #8E97AE;
   
}

.footer-content {
    font-size: 20px;
}
.sjdh {
    display: none;
}

/* 导航项样式 */
.nav-item {
    display: flex;
    align-items: center;
    flex-flow: column;
    cursor: pointer;
    margin: 0 0.8rem;
}

.nav-item div:first-child {
    color: #838A99;
}

.nav-item .xhx {
    width: 10px;
    height: 4px;
    background: #9703C9;
    border-radius: 2px;
    margin-top: 4px;
    display: none; /* 默认隐藏 */
}

/* 活动导航项样式 */
.nav-item.active div:first-child {
    color: #9703C9;
}

.nav-item.active .xhx {
    display: block; /* 显示下划线 */
}

.about-us {
    margin-top: 11rem;
}

.about-us-intro {
    margin: 2rem 10.5% 0 10.5%;
    line-height: 3;
}
/* 新增或修改的移动端样式 */
@media (max-width: 768px) {
    .sjdh {
        display: block;
    }
    html {
        font-size: 14px;
    }
    
    /* 头部导航优化 */
    .header {
        flex-direction: row;
        padding: 0.5rem 5%;
        margin: 0;
        position: fixed;
    }
    
    .nav {
        display: none; /* 默认隐藏导航，可以通过汉堡菜单显示 */
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        z-index: 100;
        padding: 1rem 0;
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    
    .nav div {
        padding: 0.8rem 1.5rem;
        margin: 0;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav div:last-child {
        border-bottom: none;
    }
    
    .mf-btn {
        margin: 0;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
 
    

  /* 隐藏桌面导航 */
  .nav {
    display: none;
}

/* 汉堡菜单样式 */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    cursor: pointer;
    z-index: 1001;
    position: relative;
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

/* 移动导航菜单 */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    padding-top: 60px;
    overflow-y: auto;
}

.mobile-nav.active {
    transform: translateX(0);
}

/* 导航项样式 */
.mobile-nav-item {
    padding: 15px 25px;
    font-size: 16px;
    color: #333;
    border-bottom: 1px solid #f5f5f5;
    position: relative;
}

.mobile-nav-item.active {
    color: #9703C9;
}

.nav-indicator {
    width: 20px;
    height: 3px;
    background: #9703C9;
    margin-top: 5px;
    display: none;
}

.mobile-nav-item.active .nav-indicator {
    display: block;
}

/* 汉堡菜单动画 */
.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 页面锁定 */
body.nav-open {
    overflow: hidden;
}
    /* 标题区域优化 */
    .title {
        min-height: auto;
        padding: 2rem 5%;
    }
    
    .title img {
        margin-top: 3rem;
        max-width: 90%;
    }
    
    .title-ms {
        font-size: 1.8rem;
        margin-top: 1.5rem;
        line-height: 1.3;
    }
    
    .title-js {
        font-size: 1rem;
        margin-top: 1rem;
        line-height: 1.5;
    }
    
    .title-btn {
        flex-direction: column;
        margin-top: 2rem;
    }
    
    .title-btn-l, .title-btn-r {
        width: 100%;
        margin: 0.5rem 0;
        padding: 0.8rem 0;
        text-align: center;
    }
    
    /* 服务选项卡优化 */
    .service-tabs {
        overflow-x: auto;
        white-space: nowrap;
        justify-content: flex-start;
        padding: 0 1rem;
        -webkit-overflow-scrolling: touch;
        justify-content: center;
    }
    
    .tab {
        padding: 0;
        margin: 0 0.5rem;
        font-size: 1rem;
        
    }
    
    .tab img {
        width: 1.2rem;
        height: 1.2rem;
    }
    
    /* 选项卡内容优化 */
    .tab-content-nr {
        flex-direction: column;
        padding: 0 1rem;
    }
    
    .tab-content-nr-title-r {
        margin-left: 0;
        margin-top: 1.5rem;
    }
    
    .tab-content-nr-title div {
        font-size: 1.4rem;
    }
    
    .service-buttons {
        justify-content: center;
        margin-top: 1.5rem;
    }
    
    .service-btn {
        margin: 0.5rem;
        padding: 0.6rem 1.5rem;
    }
    
    /* 解决方案优化 */
    .fangan-box {
        flex-direction: column;
        padding: 0 1rem;
    }
    
    .fangan-item {
        width: 100%;
        height: auto;
        margin-bottom: 1.5rem;
        padding: 1.5rem;
    }
    
    .fangan-item:last-child {
        margin-bottom: 0;
    }
    
    .fangan-ms {
        padding: 1rem 0;
    }
    
    /* 联系我们优化 */
    .lianxi {
        flex-direction: column;
        margin: 2rem 5% 0;
        height: auto;
    }
    
    .lianxi-l {
        padding: 2rem 0;
        background-size: cover;
    }
    
    .lianxi-r {
        width: 100%;
        padding: 1.5rem;
        border-radius: 0 0 10px 10px;
    }
    
    .biandan {
        width: 100%;
    }
    
    /* 页脚优化 */
    .footer {
        margin-top: 3rem;
        padding: 1.5rem 0;
    }
    
    .footer-content {
        font-size: 0.8rem;
        padding: 0 1rem;
    }
}

/* 小屏幕手机特别优化 */
@media (max-width: 480px) {
    
    .title-ms {
        font-size: 1.5rem;
    }
    
    .fw-title, .fangan .fw-title {
        font-size: 1.8rem;
    }
    
    .fw-ms, .fangan .fw-ms {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .tab-content-nr-title div {
        font-size: 1.2rem;
    }
    
    .tab-content-nr-ms {
        font-size: 0.9rem;
    }
    
}
.qiehuan {
    display: flex;
    align-items: center;
}