.banner-image::before {
        position: absolute;
        content: "";
        width: 100%;
        height: 300px;
        left: 0;
        top: 0;
        background: -webkit-gradient(linear, left top, left bottom, color-stop(80%, transparent), to(rgba(0, 0, 0, .5)));
        background: -webkit-linear-gradient(top, transparent 80%, rgba(0, 0, 0, .8) 100%);
        background: -o-linear-gradient(top, transparent 80%, rgba(0, 0, 0, .8) 100%);
        background: linear-gradient(to bottom, transparent 20%, rgba(0, 0, 0, .8) 100%);
        -o-transition: all 0.4s ease;
        transition: all 0.4s ease;
        -webkit-transition: all 0.4s ease;
        -moz-transition: all 0.4s ease;
        -ms-transition: all 0.4s ease;
    }
.banner-image img{width:100%; display:block; object-fit:cover;}
/* 解决方案区域 */
 .solutions-section {
 padding: 40px 20px;
 max-width: 1600px;
 margin: 0 auto;
 }

 /* 解决方案栏目标题 */
 .section-title {
 font-size: 4rem;
 margin-bottom: 20px;
 color: #333;
 text-align: center;
 position: relative;
 padding-bottom: 10px;
 }

 /* 栏目下划线 */
 .section-title::after {
 content: '';
 position: absolute;
 bottom: 0;
 left: 50%;
 transform: translateX(-50%);
 width: 80px;
 height: 3px;
 background-color: #1a73e8;
 }

 /* 解决方案卡片区域 */
 .solutions-grid {
 display: grid;
 grid-template-columns: repeat(auto-fill, minmax(420px, 1fr));
 gap: 30px;
 margin-top: 3rem;
 }

 .solution-card {
 background-color: white;
 border-radius: 16px;
 overflow: hidden;
 box-shadow: 0 6px 20px rgba(0,0,0,0.08);
 transition: transform 0.4s ease, box-shadow 0.4s ease;
 }

 .solution-card:hover {
 transform: translateY(-10px);
 box-shadow: 0 12px 30px rgba(0,0,0,0.15);
 }

 .solution-card img {
 width: 100%;
 height: 240px;
 object-fit: cover;
 border-bottom: 1px solid #f0f0f0;
 }

 .solution-content {
 padding: 30px;
 }

 .solution-content h3 {
 font-size: 1.5rem;
 margin-bottom: 20px;
 color: #333;
 font-weight: 600;
 }

 .solution-content p {
 color: #666;
 font-size: 1rem;
 margin-bottom: 25px;
 line-height: 1.8;
 }

 .btn-primary {
 display: inline-block;
 background-color: #1a73e8;
 color: white;
 padding: 14px 32px;
 border-radius: 10px;
 text-decoration: none;
 font-weight: 600;
 font-size: 1rem;
 transition: background-color 0.3s;
 }

 .btn-primary:hover {
 background-color: #0f52c1;
 }

 /* 响应式调整 */
 @media (max-width: 992px) {
 .solutions-grid {
 grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
 }

 .solution-content h3 {
 font-size: 1.3rem;
 }

 .solution-content p {
 margin-bottom: 20px;
 }
 }

 @media (max-width: 768px) {
 .solutions-grid {
 grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
 }

 .solution-content h3 {
 font-size: 1.2rem;
 }

 .btn-primary {
 padding: 12px 28px;
 font-size: 0.95rem;
 }
 }

 @media (max-width: 480px) {
 .solutions-grid {
 grid-template-columns: 1fr;
 }

 .solution-content h3 {
 font-size: 1.1rem;
 }

 .solution-content p {
 font-size: 0.95rem;
 }
 }