.banner{
    width: 100%;
    height: 400px;
    background-image: url("../img/emsbanner.jpg");
    background-size: cover;
    text-align: center;
    color: #fff;
    overflow: hidden;
}
.banner h2{
    margin-top: 160px;
    font-size: 32px;
    margin-bottom: 40px;
}
.banner p{
    margin-top: 10px;
    font-size: 20px;
}
.title{
    text-align: center;
    font-size: 30px;
    font-weight: 400;
}
.part1{
    overflow: hidden;
    width: 100%;
    padding-top: 20px;
    background-color: #f2f2f2;
    padding-bottom: 40px;
}
.p1img{
    width:60%;
    height: auto;
    margin: 0 auto;
    display: flex;
    margin-top: 20px;
    align-items: center;
}
.part2 {
    overflow: hidden;
    width: 100%;
    padding: 20px;

    margin-top: 20px;
}
.p3{
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.p3 h4{
    display: block;
    width: 350px;
    font-size: 18px;
}
.p3-img{
    width: 1000px;
}
.p3-img img{
    width: 1000px;
}
.part3 {
    overflow: hidden;
    padding: 20px;
    margin-top: 20px;
}
.part4 {
    overflow: hidden;
    width: 100%;
    padding: 20px;
    margin-top: 20px;
}
.p4img{
    width: 1200px;
    margin: 20px auto;
}
.part4 img{
    width: 100%;
    height: auto;
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.tabs-wrapper {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    overflow: hidden;
}

.tabs-header {
    background: #fff;
    padding: 20px 30px 0;
}

.tabs-nav {
    display: flex;
    position: relative;
    border-bottom: 1px solid #eaeef5;
}

.tabs-indicator {
    position: absolute;
    height: 3px;
    bottom: 0;
    background: #4361ee;
    border-radius: 3px 3px 0 0;
    transition: all 0.4s cubic-bezier(0.65, 0, 0.35, 1);
    z-index: 1;
}

.tab-btn {
    flex: 1;
    text-align: center;
    padding: 18px 0;
    border: none;
    background: transparent;
    font-size: 16px;
    font-weight: 600;
    color: #5d6d89;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    outline: none;
    z-index: 2;
    overflow: hidden;
}

.tab-btn:before {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(67, 97, 238, 0.2);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
}

.tab-btn:hover {
    color: #4361ee;
}

.tab-btn.active {
    color: #4361ee;
}

.tab-btn.active:before {
    transform: scaleX(1);
    background: #4361ee;
}

.tabs-content {
    padding: 30px;
    background: #f8fafd;
    min-height: 350px;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease forwards;
}

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

.tab-title {
    font-size: 28px;
    margin-bottom: 25px;
    color: #2c3e50;
    position: relative;
    padding-left: 18px;
}

.tab-title:before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 6px;
    height: 28px;
    background: #4361ee;
    border-radius: 3px;
}

.tab-description {
    font-size: 16px;
    color: #4a5568;
    line-height: 1.8;
    max-width: 900px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eaeef5;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.system-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-left: 4px solid #4361ee;
}

.system-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.08);
}

.card-title {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title span {
    background: #4361ee;
    color: white;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
}

.card-text {
    font-size: 15px;
    color: #718096;
    line-height: 1.6;
}

.card-badge {
    display: inline-block;
    background: rgba(67, 97, 238, 0.1);
    color: #4361ee;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 15px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}