.case-banner {
	position: relative;
	overflow: hidden;
	min-height: 400px;
	display: flex;
	align-items: center;
	background:#edf2f5 url(../images/case.jpg)  no-repeat right;
	border-bottom: 4px solid #e67e22;
}

.case-banner::before {
	content: '';
	position: absolute;
	inset: 0;
	z-index: 0;
	pointer-events: none;
	background-image:
		linear-gradient(rgba(230, 126, 34, 0.03) 1px, transparent 1px),
		linear-gradient(90deg, rgba(230, 126, 34, 0.03) 1px, transparent 1px);
	background-size: 60px 60px;
}

.case-banner .container {
	position: relative;
	z-index: 2;
	width: 100%;
}

.case-banner .banner-text {
	color: #1e2f3f;
	padding: 20px 0;
}

.case-banner .banner-text .breadcrumb {
	font-size: 14px;
	color: #1e2f3f;
	margin-bottom: 8px;
}

.case-banner .banner-text .breadcrumb a {
	color: #1e2f3f;
	text-decoration: none;
	transition: color 0.3s;
}

.case-banner .banner-text .breadcrumb a:hover {
	color: #e67e22;
}

.case-banner .banner-text .breadcrumb .sep {
	margin: 0 8px;
}

.case-banner .banner-text h1 {
	font-size: 36px;
	font-weight: 700;
	letter-spacing: 1px;
}

.case-banner .banner-text h1 .highlight {
	color: #e67e22;
}

.case-banner .banner-text .sub-title {
	font-size: 16px;
	color: #1e2f3f;
	line-height: 1.8;
	max-width: 560px;
	margin-top: 4px;
}

/* ---- 分页 ---- */
.pagination {
	display: flex;
	justify-content: center;
	gap: 8px;
	margin-top: 36px;
	flex-wrap: wrap;
}

.pagination a,
.pagination span {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 42px;
	height: 42px;
	padding: 0 14px;
	border-radius: 8px;
	font-size: 14px;
	font-weight: 500;
	color: #2c3e50;
	background: #ffffff;
	border: 1px solid #e9edf2;
	text-decoration: none;
	transition: all 0.25s;
}

.pagination a:hover {
	background: #e67e22;
	color: #fff;
	border-color: #e67e22;
}

.pagination .active {
	background: #e67e22;
	color: #fff;
	border-color: #e67e22;
}

.pagination .disabled {
	opacity: 0.4;
	pointer-events: none;
}

/* ============================================================
   案例详情卡片展开 (静态展示)
   ============================================================ */
.case-detail-expand {
	margin-top: 48px;
	background: #ffffff;
	border-radius: 16px;
	border: 1px solid #eef2f6;
	padding: 32px 36px;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.case-detail-expand .expand-title {
	font-size: 22px;
	font-weight: 700;
	color: #0a2e4a;
	margin-bottom: 16px;
	display: flex;
	align-items: center;
	gap: 10px;
}

.case-detail-expand .expand-title i {
	color: #e67e22;
}

.case-detail-expand .expand-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 24px 40px;
}

.case-detail-expand .expand-item {
	border-bottom: 1px solid #f5f7fa;
	padding-bottom: 16px;
}

.case-detail-expand .expand-item .item-industry {
	font-size: 12px;
	font-weight: 600;
	color: #e67e22;
	text-transform: uppercase;
	letter-spacing: 0.8px;
}

.case-detail-expand .expand-item .item-title {
	font-size: 17px;
	font-weight: 700;
	color: #0a2e4a;
	margin: 4px 0 6px;
}

.case-detail-expand .expand-item .item-content {
	font-size: 14px;
	color: #2c3e50;
	line-height: 1.8;
}

.case-detail-expand .expand-item .item-content p {
	margin-bottom: 6px;
}

.case-detail-expand .expand-item .item-content ul {
	padding-left: 20px;
	margin: 4px 0 8px;
}

.case-detail-expand .expand-item .item-content ul li {
	margin-bottom: 2px;
}

.case-detail-expand .expand-item .item-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-top: 8px;
}

.case-detail-expand .expand-item .item-tags .tag {
	background: #f5f7fa;
	color: #5a6f82;
	font-size: 12px;
	padding: 2px 14px;
	border-radius: 20px;
	border: 1px solid #eef2f6;
}

.case-detail-expand .expand-item .item-location {
	font-size: 13px;
	color: #7f8c9b;
	margin-top: 8px;
}

.case-detail-expand .expand-item .item-location i {
	color: #e67e22;
	margin-right: 4px;
}

/* ============================================================
   底部选型引导
   ============================================================ */
.product-cta {
	padding: 50px 0 60px;
	background: #ffffff;
	border-top: 1px solid #eef2f6;
	margin-top: 20px;
}

.product-cta .cta-box {
	background: linear-gradient(145deg, #0a1e2f, #1a3a5a);
	border-radius: 20px;
	padding: 48px 56px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 30px;
	border: 1px solid rgba(255, 255, 255, 0.06);
	position: relative;
	overflow: hidden;
}

.product-cta .cta-box::before {
	content: '';
	position: absolute;
	width: 300px;
	height: 300px;
	border-radius: 50%;
	background: radial-gradient(circle, rgba(230, 126, 34, 0.10) 0%, transparent 70%);
	top: -100px;
	right: -50px;
}

.product-cta .cta-box .cta-text {
	color: #fff;
	position: relative;
	z-index: 1;
}

.product-cta .cta-box .cta-text h2 {
	font-size: 26px;
	font-weight: 700;
	margin-bottom: 8px;
}

.product-cta .cta-box .cta-text h2 .highlight {
	color: #e67e22;
}

.product-cta .cta-box .cta-text p {
	color: rgba(255, 255, 255, 0.6);
	font-size: 15px;
	line-height: 1.7;
}

.product-cta .cta-box .cta-buttons {
	display: flex;
	gap: 14px;
	flex-wrap: wrap;
	position: relative;
	z-index: 1;
}

.product-cta .cta-box .cta-buttons .btn-primary {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	background: #e67e22;
	color: #fff;
	padding: 14px 34px;
	border-radius: 50px;
	font-size: 16px;
	font-weight: 600;
	text-decoration: none;
	transition: all 0.25s;
	border: none;
	cursor: pointer;
	box-shadow: 0 4px 20px rgba(230, 126, 34, 0.35);
}

.product-cta .cta-box .cta-buttons .btn-primary:hover {
	background: #cf6d17;
	transform: translateY(-3px);
	box-shadow: 0 8px 30px rgba(230, 126, 34, 0.45);
}

.product-cta .cta-box .cta-buttons .btn-secondary {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	background: rgba(255, 255, 255, 0.08);
	color: #fff;
	padding: 14px 34px;
	border-radius: 50px;
	font-size: 16px;
	font-weight: 500;
	text-decoration: none;
	border: 1px solid rgba(255, 255, 255, 0.15);
	transition: all 0.25s;
	cursor: pointer;
}

.product-cta .cta-box .cta-buttons .btn-secondary:hover {
	background: rgba(255, 255, 255, 0.15);
	border-color: rgba(255, 255, 255, 0.30);
	transform: translateY(-3px);
}
/* ============================================================
   弹窗表单 (Modal)
   ============================================================ */
.modal-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.50);
	backdrop-filter: blur(4px);
	z-index: 9999;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.3s ease, visibility 0.3s ease;
	padding: 20px;
}

.modal-overlay.active {
	opacity: 1;
	visibility: visible;
}

.modal-box {
	background: #ffffff;
	border-radius: 24px;
	max-width: 560px;
	width: 100%;
	padding: 36px 32px 32px;
	box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25);
	transform: scale(0.95) translateY(20px);
	transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
	position: relative;
	max-height: 90vh;
	overflow-y: auto;
}

.modal-overlay.active .modal-box {
	transform: scale(1) translateY(0);
}

.modal-close {
	position: absolute;
	top: 16px;
	right: 20px;
	background: none;
	border: none;
	font-size: 26px;
	color: #7f8c9b;
	cursor: pointer;
	padding: 6px;
	line-height: 1;
	transition: color 0.2s, transform 0.2s;
}

.modal-close:hover {
	color: #e67e22;
	transform: rotate(90deg);
}

.modal-title {
	font-size: 24px;
	font-weight: 700;
	color: #0a2e4a;
	margin-bottom: 6px;
	display: flex;
	align-items: center;
	gap: 10px;
}

.modal-title i {
	color: #e67e22;
}

.modal-sub {
	font-size: 14px;
	color: #7f8c9b;
	margin-bottom: 24px;
}

.modal-form .form-group {
	margin-bottom: 18px;
}

.modal-form .form-group label {
	display: block;
	font-size: 14px;
	font-weight: 600;
	color: #0a2e4a;
	margin-bottom: 4px;
}

.modal-form .form-group label .required {
	color: #e67e22;
	margin-left: 2px;
}

.modal-form .form-group input,
.modal-form .form-group textarea {
	width: 100%;
	padding: 12px 16px;
	border: 2px solid #e9edf2;
	border-radius: 12px;
	font-size: 15px;
	font-family: inherit;
	transition: border-color 0.25s, box-shadow 0.25s;
	background: #f8fafc;
	outline: none;
}

.modal-form .form-group input:focus,
.modal-form .form-group textarea:focus {
	border-color: #e67e22;
	box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.12);
	background: #ffffff;
}

.modal-form .form-group textarea {
	resize: vertical;
	min-height: 100px;
}

.modal-form .form-actions {
	display: flex;
	gap: 12px;
	margin-top: 8px;
}

.modal-form .form-actions .btn-submit {
	flex: 1;
	background: #e67e22;
	color: #fff;
	border: none;
	padding: 14px 24px;
	border-radius: 50px;
	font-size: 16px;
	font-weight: 600;
	cursor: pointer;
	transition: background 0.25s, transform 0.15s;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
}

.modal-form .form-actions .btn-submit:hover {
	background: #cf6d17;
	transform: translateY(-2px);
}

.modal-form .form-actions .btn-cancel {
	background: transparent;
	color: #7f8c9b;
	border: 2px solid #e9edf2;
	padding: 14px 24px;
	border-radius: 50px;
	font-size: 16px;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.25s;
}

.modal-form .form-actions .btn-cancel:hover {
	background: #f5f7fa;
	border-color: #d0d7de;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
	.case-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 18px;
	}

	.case-detail-expand .expand-grid {
		grid-template-columns: 1fr;
		gap: 20px;
	}

	.product-cta .cta-box {
		padding: 36px 32px;
		flex-direction: column;
		text-align: center;
	}

	.product-cta .cta-box .cta-buttons {
		justify-content: center;
	}
}

@media (max-width: 768px) {
	.container {
		padding: 0 16px;
	}

	.case-banner {
		min-height: 200px;
		padding: 24px 0 20px;
	}

	.case-banner .banner-text h1 {
		font-size: 28px;
	}

	.case-banner .banner-text .sub-title {
		font-size: 14px;
	}

	.case-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 16px;
	}

	.case-filter {
		padding: 12px 16px;
		gap: 8px;
	}

	.case-filter .filter-btn {
		padding: 6px 14px;
		font-size: 13px;
	}

	.case-detail-expand {
		padding: 24px 18px;
	}

	.case-detail-expand .expand-title {
		font-size: 19px;
	}

	.case-detail-expand .expand-item .item-title {
		font-size: 15px;
	}

	.case-detail-expand .expand-item .item-content {
		font-size: 13px;
	}

	.product-cta {
		padding: 30px 0 40px;
	}

	.product-cta .cta-box {
		padding: 30px 24px;
	}

	.product-cta .cta-box .cta-text h2 {
		font-size: 22px;
	}

	.product-cta .cta-box .cta-buttons .btn-primary,
	.product-cta .cta-box .cta-buttons .btn-secondary {
		padding: 12px 24px;
		font-size: 14px;
	}
}

@media (max-width: 500px) {
	.container {
		padding: 0 14px;
	}

	.case-banner {
		min-height: auto;
		padding: 14px 0 12px;
		background: #eaf0f6 url(../images/case_phone.jpg) no-repeat bottom;
		background-size: 100%;
		padding-bottom: 75%;
	}

	.case-banner .banner-text h1 {
		font-size: 22px;
	}

	.case-banner .banner-text .sub-title {
		font-size: 13px;
	}


	.case-grid {
		grid-template-columns: 1fr;
		gap: 14px;
	}

	.case-card .case-body .case-title {
		font-size: 16px;
	}

	.case-filter {
		flex-direction: column;
		align-items: flex-start;
		gap: 8px;
	}

	.case-filter .filter-label {
		margin-right: 0;
	}

	.pagination a,
	.pagination span {
		min-width: 36px;
		height: 36px;
		font-size: 13px;
		padding: 0 10px;
	}

	.case-detail-expand {
		padding: 18px 14px;
	}

	.case-detail-expand .expand-grid {
		gap: 16px;
	}

	.product-cta {
		padding: 20px 0 30px;
	}

	.product-cta .cta-box {
		padding: 24px 18px;
		border-radius: 14px;
	}

	.product-cta .cta-box .cta-text h2 {
		font-size: 19px;
	}

	.product-cta .cta-box .cta-text p {
		font-size: 13px;
	}

	.product-cta .cta-box .cta-buttons {
		flex-direction: column;
		width: 100%;
	}

	.product-cta .cta-box .cta-buttons .btn-primary,
	.product-cta .cta-box .cta-buttons .btn-secondary {
		justify-content: center;
		padding: 12px 20px;
		font-size: 14px;
		width: 100%;
	}
}

@media (max-width: 380px) {
	.case-grid {
		grid-template-columns: 1fr;
		gap: 14px;
	}

	.case-card .case-image {
		aspect-ratio: 16 / 9;
	}
}