/* ========================================
   TK云大师 - 客户案例页面样式
   现代化设计风格
   ======================================== */

/* 页面主容器 */
.cases-page {
    min-height: 100vh;
    background: var(--color-background);
    padding-top: 100px;
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
}

/* 案例卡片 - 深色主题 */
.case-card-video {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
    transform: translateY(30px);
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    will-change: transform;
}

.case-card-video:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(24, 202, 230, 0.25);
    border-color: rgba(24, 202, 230, 0.4);
}

/* 图片容器 */
.case-image-container {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.case-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card-video:hover .case-image {
    transform: scale(1.08);
}

/* 遮罩层 */
.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card-video:hover .case-overlay {
    opacity: 1;
}

/* 查看详情按钮 */
.view-detail-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 30px;
    color: #7000ff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transform: translateY(20px);
    opacity: 0;
    position: relative;
    z-index: 3;
    letter-spacing: 0.5px;
}

.case-card-video:hover .view-detail-btn {
    transform: translateY(0);
    opacity: 1;
}

.view-detail-btn:hover {
    background: linear-gradient(135deg, #7000ff, #9d4edd);
    color: #ffffff;
    box-shadow: 0 12px 40px rgba(112, 0, 255, 0.6);
    transform: translateY(-3px) scale(1.08);
}

.view-detail-btn i {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.view-detail-btn:hover i {
    transform: translateX(5px);
}

/* 分类标签 */
.case-category-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 案例信息区域 */
.case-info {
    padding: 24px;
    background: transparent;
}

.case-title {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 12px 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.case-card-video:hover .case-title {
    color: #18cae6;
}

.case-description {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 链接覆盖层 - 降低z-index让按钮可以点击 */
.case-link-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    text-decoration: none;
}

/* 查看详情按钮 - 华为云风格 */
.case-view-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: transparent;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    color: #7000ff;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
}

.case-view-btn:hover {
    background: #7000ff;
    border-color: #7000ff;
    color: #ffffff;
}

.case-view-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.case-view-btn:hover i {
    transform: translateX(3px);
}

/* 带背景图片的卡片 */
.case-card-huawei.has-background {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 320px;
}

/* 背景遮罩层 */
.case-background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(112, 0, 255, 0.3) 50%,
        rgba(24, 202, 230, 0.2) 100%
    );
    opacity: 0.9;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.case-card-huawei.has-background:hover .case-background-overlay {
    opacity: 0.95;
}

/* 内容包装器 */
.case-content-wrapper {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card-huawei:hover {
    transform: translateY(-8px);
    border-color: rgba(112, 0, 255, 0.3);
    box-shadow: 0 20px 40px rgba(112, 0, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.case-card-huawei::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #7000ff, #18cae6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card-huawei:hover::before {
    opacity: 1;
}

/* 分类标签 */
.case-category-tag {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(112, 0, 255, 0.1);
    border: 1px solid rgba(112, 0, 255, 0.2);
    border-radius: 20px;
    color: var(--color-primary-light);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    backdrop-filter: blur(10px);
}

/* 带背景图片时的分类标签 */
.case-card-huawei.has-background .case-category-tag {
    background: rgba(255, 255, 255, 0.9);
    color: #7000ff;
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 案例内容 */
.case-content {
    margin-bottom: 20px;
    flex: 1;
}

.case-title-huawei {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.case-card-huawei:hover .case-title-huawei {
    color: var(--color-primary-light);
}

/* 带背景图片时的标题样式 */
.case-card-huawei.has-background .case-title-huawei {
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

.case-card-huawei.has-background:hover .case-title-huawei {
    color: #18cae6;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.case-description-huawei {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 带背景图片时的描述样式 */
.case-card-huawei.has-background .case-description-huawei {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.case-company {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* 带背景图片时的公司名称样式 */
.case-card-huawei.has-background .case-company {
    color: rgba(255, 255, 255, 0.8);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* 案例操作区域 */
.case-action {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary-light);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
    background: rgba(112, 0, 255, 0.05);
    border: 1px solid rgba(112, 0, 255, 0.1);
}

.case-link:hover {
    background: rgba(112, 0, 255, 0.1);
    border-color: rgba(112, 0, 255, 0.2);
    transform: translateX(4px);
}

.case-link i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.case-link:hover i {
    transform: translateX(2px);
}

/* 带背景图片时的链接样式 */
.case-card-huawei.has-background .case-link {
    background: rgba(255, 255, 255, 0.9);
    color: #7000ff;
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.case-card-huawei.has-background .case-link:hover {
    background: rgba(255, 255, 255, 1);
    color: #7000ff;
    border-color: rgba(112, 0, 255, 0.3);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 案例列表网格布局 */
.cases-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    margin-top: 2rem;
}

/* 动画 */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cases-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .case-card-huawei {
        padding: 20px;
    }
    
    .case-title-huawei {
        font-size: 16px;
    }
    
    .case-description-huawei {
        font-size: 13px;
    }
}

/* 案例列表布局 */
.cases-list {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)) !important;
    gap: 32px !important;
    margin-top: 3rem !important;
    position: relative;
    z-index: 1;
}

/* 隐藏旧的案例卡片样式 */
.case-card:not(.case-card-video),
.case-card-huawei {
    display: none !important;
}

/* 确保新的视频卡片显示 */
.case-card-video {
    display: block !important;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .cases-list {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)) !important;
        gap: 28px !important;
    }
}

@media (max-width: 992px) {
    .cases-list {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)) !important;
        gap: 24px !important;
    }
    
    .case-image-container {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .cases-list {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
        gap: 20px !important;
    }
    
    .case-image-container {
        height: 200px;
    }
    
    .case-info {
        padding: 20px;
    }
    
    .case-title {
        font-size: 16px;
    }
    
    .case-description {
        font-size: 13px;
    }
    
    .view-detail-btn {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .case-category-badge {
        top: 12px;
        left: 12px;
        padding: 5px 12px;
        font-size: 11px;
    }
}

@media (max-width: 576px) {
    .cases-list {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    
    .case-card-video {
        border-radius: 10px;
    }
    
    .case-image-container {
        height: 200px;
    }
    
    .case-info {
        padding: 18px;
    }
    
    .case-title {
        font-size: 16px;
    }
    
    .case-description {
        font-size: 13px;
    }
    
    .case-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .view-detail-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .view-detail-btn i {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .case-image-container {
        height: 180px;
    }
    
    .case-info {
        padding: 16px;
    }
    
    .case-title {
        font-size: 15px;
    }
    
    .case-description {
        font-size: 12px;
    }
}

/* 背景装饰 - 深色主题 */
.cases-bg-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.shape-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    animation: float 20s ease-in-out infinite;
}

.shape-blob-1 {
    width: 600px;
    height: 600px;
    background: #7000ff;
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.shape-blob-2 {
    width: 500px;
    height: 500px;
    background: #18cae6;
    bottom: -10%;
    left: -10%;
    animation-delay: 5s;
}

.shape-blob-3 {
    width: 400px;
    height: 400px;
    background: #fe53bb;
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(20px, 30px) scale(1.05);
    }
}

/* 页面标题区域 */
.cases-hero {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.cases-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 20px;
    background: rgba(112, 0, 255, 0.15);
    border: 1px solid rgba(112, 0, 255, 0.3);
    border-radius: 50px;
    color: var(--color-primary-light);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.6s ease-out;
    backdrop-filter: blur(10px);
}

.cases-label i {
    font-size: 1.1rem;
}

.cases-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, #7000ff, #18cae6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3;
    animation: fadeInUp 0.6s ease-out;
}

.cases-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* 统计数据 */
.cases-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.stat-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: rgba(29, 29, 66, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(29, 29, 66, 0.8);
    border-color: rgba(112, 0, 255, 0.5);
    box-shadow: 0 10px 30px rgba(112, 0, 255, 0.3);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #7000ff, #fe53bb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* 分类切换标签 */
.category-tabs {
    margin-bottom: 40px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.category-tabs-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    max-width: 1200px;
    margin: 0 auto;
}

.category-tab {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
}

.category-tab i {
    font-size: 1rem;
    color: #9d4edd;
}

.category-tab .count {
    font-size: 0.85rem;
    opacity: 0.7;
    color: rgba(255, 255, 255, 0.6);
}

.category-tab:hover {
    background: rgba(112, 0, 255, 0.15);
    border-color: rgba(112, 0, 255, 0.4);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(112, 0, 255, 0.3);
}

.category-tab.active {
    background: linear-gradient(135deg, #7000ff, #9d4edd);
    border: 1px solid rgba(112, 0, 255, 0.5);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(112, 0, 255, 0.4);
}

.category-tab.active i {
    color: #ffffff;
}

.category-tab.active .count {
    opacity: 1;
    color: rgba(255, 255, 255, 0.95);
}

.category-tab.active:hover {
    background: linear-gradient(135deg, #5f00d9, #8a3dcc);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(112, 0, 255, 0.5);
}

/* 原有案例卡片样式 - 已注释 */
/*
.cases-list {
    position: relative;
    z-index: 1;
}

.case-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeInUp 0.4s ease-out both;
    text-decoration: none;
    position: relative;
    min-height: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}
*/

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #7000ff, #18cae6, transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.case-card:hover {
    transform: translateY(-6px);
    border-color: rgba(112, 0, 255, 0.5);
    box-shadow: 0 16px 40px rgba(112, 0, 255, 0.25);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.case-card:hover::before {
    opacity: 1;
}

/* 精选标识 */
.featured-tag {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.4rem 0.85rem;
    background: linear-gradient(135deg, #7000ff, #18cae6);
    border-radius: 6px;
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 10;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(112, 0, 255, 0.4);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.featured-tag::before {
    content: '⭐';
    font-size: 0.8rem;
}

/* 封面图 - 左侧固定宽度 */
.case-cover {
    position: relative;
    width: 280px;
    height: 100%;
    min-height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(112, 0, 255, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(112, 0, 255, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.case-card:hover .case-cover::after {
    opacity: 1;
}

.case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-cover img {
    transform: scale(1.08);
}

.case-cover i {
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.2);
    z-index: 1;
}

/* 旧的遮罩层样式已删除 - 使用上面第57-73行的新样式 */

.view-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.6rem;
    background: white;
    border-radius: 8px;
    color: #7000ff;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transform: translateY(4px);
    transition: all 0.3s ease;
}

.case-card:hover .view-more {
    transform: translateY(0);
}

.view-more:hover {
    background: #7000ff;
    color: white;
    box-shadow: 0 12px 32px rgba(112, 0, 255, 0.6);
}

.view-more i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.view-more:hover i {
    transform: translateX(4px);
}

.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 1rem;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-wrapper iframe,
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.95rem;
}

.video-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 图片展示 */
.images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.image-item {
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
    aspect-ratio: 16/9;
    animation: fadeInScale 0.6s ease-out both;
}

.image-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.4));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.image-item:hover::after {
    opacity: 1;
}

.case-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.image-item:hover .case-image {
    transform: scale(1.1);
}

.single-image {
    width: 100%;
    border-radius: 1rem;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 卡片主体 - 右侧内容区 */
.case-body {
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.case-tag-category {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.2), rgba(24, 202, 230, 0.2));
    border: 1px solid rgba(112, 0, 255, 0.3);
    border-radius: 6px;
    color: #18cae6;
    font-size: 0.72rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: 0.5px;
    width: fit-content;
    transition: all 0.3s ease;
}

.case-card:hover .case-tag-category {
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.3), rgba(24, 202, 230, 0.3));
    border-color: rgba(112, 0, 255, 0.5);
    transform: translateX(4px);
}

.case-title-simple {
    font-size: 1.08rem;
    font-weight: 600;
    color: #fff;
    margin: 0 0 0.7rem 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.case-card:hover .case-title-simple {
    color: #18cae6;
}

.case-desc {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.55;
    margin: 0 0 0.85rem 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-meta {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.case-category-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.2), rgba(24, 202, 230, 0.2));
    border: 1px solid rgba(112, 0, 255, 0.4);
    border-radius: 20px;
    color: #18cae6;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.case-category-tag:hover {
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.3), rgba(24, 202, 230, 0.3));
    border-color: rgba(112, 0, 255, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(112, 0, 255, 0.3);
}

.case-company {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    font-weight: 500;
}

.case-company i {
    color: var(--color-primary);
    font-size: 1rem;
}

.case-industry {
    padding: 0.35rem 0.85rem;
    background: rgba(24, 202, 230, 0.15);
    border: 1px solid rgba(24, 202, 230, 0.3);
    border-radius: 1rem;
    color: #18cae6;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-date {
    color: rgba(255, 255, 255, 0.45);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.case-date i {
    font-size: 0.875rem;
}

/* 案例内容块 */
.case-section {
    margin-bottom: 1.5rem;
}

.case-section-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-section-title i {
    font-size: 1rem;
    color: #18cae6;
}

.case-section-content {
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    font-size: 0.9rem;
}

/* 成果统计 */
.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.85rem;
    padding: 0.85rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-item-simple {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    font-size: 0.76rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
    transition: all 0.3s ease;
}

.stat-item-simple i {
    color: #18cae6;
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.case-card:hover .stat-item-simple {
    color: rgba(255, 255, 255, 0.95);
}

.case-card:hover .stat-item-simple i {
    color: #7000ff;
    transform: scale(1.1);
}

/* 底部信息 */
.case-footer-simple {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.5);
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: auto;
}

.company-name {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.company-name::before {
    content: '';
    width: 3px;
    height: 3px;
    background: #18cae6;
    border-radius: 50%;
}

.case-date-simple {
    font-size: 0.68rem;
}

/* 空状态 */
.empty-cases {
    text-align: center;
    padding: 6rem 2rem;
    background: rgba(29, 29, 66, 0.4);
    border-radius: 12px;
    margin: 2rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.empty-icon i {
    font-size: 5rem;
    color: rgba(255, 255, 255, 0.15);
    margin-bottom: 1.5rem;
}

.empty-title {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.empty-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 动画 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   响应式设计
   ======================================== */

@media screen and (max-width: 1199px) {
    .case-content-wrapper {
        flex-direction: column;
    }
    
    .case-media-section {
        min-height: 240px;
    }
    
    .case-thumbnail-wrapper {
        height: 240px;
    }
    
    .case-info-section {
        padding: 2rem 2.5rem;
    }
}

@media screen and (max-width: 991px) {
    .cases-page {
        padding-top: 90px;
    }
    
    .cases-title {
        font-size: 2.5rem;
    }
    
    .cases-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    
    .case-title {
        font-size: 1.5rem;
    }
}

@media screen and (max-width: 767px) {
    .cases-page {
        padding-top: 80px;
        padding-bottom: 40px;
    }
    
    /* 移动端分类标签样式 */
    .category-tabs {
        margin-bottom: 25px;
        padding: 0 15px;
    }
    
    .category-tabs-container {
        gap: 8px;
        flex-wrap: wrap;
    }
    
    .category-tab {
        padding: 8px 16px;
        font-size: 0.875rem;
        min-width: auto;
        flex-shrink: 0;
    }
    
    .category-tab i {
        font-size: 0.9rem;
    }
    
    .category-tab .count {
        font-size: 0.75rem;
    }
    
    .cases-hero {
        margin-bottom: 3rem;
    }
    
    .cases-title {
        font-size: 2rem;
    }
    
    .cases-subtitle {
        font-size: 1rem;
    }
    
    .cases-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1.5rem 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .case-card {
        margin-bottom: 2rem;
    }
    
    .case-media-section {
        min-height: 220px;
    }
    
    .case-thumbnail-wrapper {
        height: 220px;
    }
    
    .case-placeholder {
        height: 220px;
    }
    
    .case-info-section {
        padding: 1.5rem;
    }
    
    .view-detail-btn {
        padding: 0.65rem 1.4rem;
        font-size: 0.85rem;
    }
    
    .case-title {
        font-size: 1.2rem;
    }
    
    /* 新卡片样式移动端 */
    .case-card {
        grid-template-columns: 1fr;
        min-height: auto;
        margin-bottom: 1.25rem;
    }
    
    .case-cover {
        width: 100%;
        height: 200px;
        min-height: 200px;
    }
    
    .case-body {
        padding: 1.25rem;
    }
    
    .case-title-simple {
        font-size: 1rem;
    }
    
    .case-desc {
        font-size: 0.8rem;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .stat-item-simple {
        font-size: 0.75rem;
    }
    
    .view-more {
        font-size: 0.85rem;
        padding: 0.5rem 1.25rem;
    }
    
    .case-header {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
    
    .case-title {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
    }
    
    .case-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .featured-badge {
        top: 1rem;
        right: 1rem;
        font-size: 0.7rem;
        padding: 0.375rem 0.75rem;
    }
    
    .case-section {
        margin-bottom: 1.5rem;
    }
    
    .case-section-title {
        font-size: 0.95rem;
    }
    
    .case-section-content {
        font-size: 0.875rem;
    }
    
    .results-list li {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
    
    .case-tag {
        font-size: 0.7rem;
        padding: 0.3rem 0.7rem;
    }
    
    .images-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

@media screen and (max-width: 480px) {
    .cases-label {
        font-size: 12px;
        padding: 6px 16px;
    }
    
    .cases-title {
        font-size: 1.75rem;
    }
    
    .cases-subtitle {
        font-size: 0.95rem;
    }
    
    .stat-item {
        padding: 1.25rem 0.75rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .case-card {
        grid-template-columns: 1fr;
    }
    
    .case-cover {
        width: 100%;
        height: 160px;
        min-height: 160px;
    }
    
    .case-body {
        padding: 1rem;
    }
    
    .case-title-simple {
        font-size: 0.95rem;
    }
    
    .case-desc {
        font-size: 0.75rem;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
    }
}

/* 中等屏幕调整 */
@media screen and (max-width: 992px) and (min-width: 768px) {
    .case-card {
        grid-template-columns: 240px 1fr;
        min-height: 180px;
    }
    
    .case-cover {
        width: 240px;
        min-height: 180px;
    }
    
    .case-body {
        padding: 1.15rem 1.3rem;
    }
    
    .case-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.6rem;
    }
    
    .case-title-simple {
        font-size: 1rem;
    }
}