/* ============================================================
   博远智能 - 工程案例页样式 case.css
   （仅保留案例页独有样式；页头导航/页脚/浮动按钮/二维码弹窗
   由 style.css 统一提供，不再重复定义）
   ============================================================ */

/* ===== 案例卡片网格 ===== */
.case-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 28px;
}
.case-card {
background: #fff;
border-radius: var(--radius);
box-shadow: var(--shadow);
overflow: hidden;
transition: var(--transition);
cursor: pointer;
display: flex;
flex-direction: column;
border: 1px solid transparent;
text-decoration: none;
color: inherit;
}
.case-card:hover {
transform: translateY(-8px);
box-shadow: 0 16px 40px rgba(10, 75, 156, 0.18);
border-color: #d0dff2;
}
.case-card-img {
height: 252px;
position: relative;
overflow: hidden;
background: linear-gradient(135deg, #e8f0fa 0%, #d4e2f5 100%);
}
.case-card-img img {
position: absolute;
inset: 0;
width: 100%;
height: 100%;
object-fit: cover;
transition: var(--transition);
}
.case-card:hover .case-card-img img {
transform: scale(1.05);
}
.case-card-img .case-tag {
position: absolute;
top: 16px;
left: 16px;
background: var(--orange);
color: #fff;
padding: 5px 14px;
border-radius: 20px;
font-size: 12px;
font-weight: 500;
z-index: 2;
letter-spacing: 0.5px;
}
.case-card-body {
padding: 24px 22px 20px;
flex: 1;
display: flex;
flex-direction: column;
}
.case-card-body h3 {
font-size: 17px;
color:#333;
margin-bottom: 10px;
font-weight:600;
}
.case-card-body .case-desc {
font-size: 14px;
color: #777;
line-height: 1.7;
margin-bottom: 16px;
flex: 1;
display: -webkit-box;
-webkit-line-clamp: 3;
-webkit-box-orient: vertical;
overflow: hidden;
}
.case-card-body .case-meta {
display: flex;
gap: 12px;
flex-wrap: wrap;
margin-bottom: 14px;
}
.case-card-body .case-meta span {
font-size: 12px;
background: #f0f5fb;
color: var(--main-blue);
padding: 4px 10px;
border-radius: 4px;
white-space: nowrap;
}
.case-card-body .btn-detail {
display: inline-flex;
align-items: center;
gap: 6px;
color: var(--orange);
font-weight: 600;
font-size: 14px;
transition: var(--transition);
align-self: flex-start;
padding: 6px 0;
}
.case-card:hover .case-card-body .btn-detail {
gap: 10px;
color: var(--orange-deep);
}
.case-card-body .btn-detail i {
font-size: 12px;
transition: var(--transition);
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1100px) {
.case-grid {
grid-template-columns: repeat(2, 1fr);
gap: 22px;
}
}
@media screen and (max-width: 768px) {
.case-grid {
grid-template-columns: 1fr 1fr;
gap: 16px;
}
.case-card-img {
height: 160px;
}
.case-card-body {
padding: 16px 14px 14px;
}
.case-card-body h3 {
font-size: 16px;
}
.case-card-body .case-desc {
font-size: 12px;
-webkit-line-clamp: 2;
}
}
@media screen and (max-width: 480px) {
.case-grid {
grid-template-columns: 1fr;
gap: 14px;
}
.case-card-img {
height: 180px;
}
.case-card-body h3 {
font-size: 17px;
}
}