/* 合作案例页面专用样式 */

/* 案例统计 */
.cases-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
    margin: 3rem 0;
    padding: 2.5rem;
    background: linear-gradient(135deg, var(--primary-red), var(--secondary-red));
    border-radius: 15px;
    color: var(--primary-white);
    box-shadow: 0 10px 30px rgba(211, 47, 47, 0.2);
}

.stat-item {
    text-align: center;
    flex: 1;
    min-width: 180px;
    padding: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    display: inline-block;
}

.stat-number::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-white);
    opacity: 0.7;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    letter-spacing: 1px;
}

/* 筛选分类 */
.cases-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0 3rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 10px;
}

.filter-btn {
    padding: 0.8rem 1.8rem;
    background: var(--primary-white);
    border: 2px solid transparent;
    border-radius: 25px;
    color: var(--medium-gray);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.filter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    color: var(--primary-red);
}

.filter-btn.active {
    background: var(--primary-red);
    color: var(--primary-white);
    border-color: var(--primary-red);
    box-shadow: 0 5px 15px rgba(211, 47, 47, 0.3);
}

/* 搜索框 */
.cases-search {
    margin: 2rem 0 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-container {
    position: relative;
    display: flex;
    background: var(--primary-white);
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.search-container:focus-within {
    border-color: var(--primary-red);
}

.search-icon {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--medium-gray);
    font-size: 1.1rem;
}

.search-input {
    flex: 1;
    padding: 1.2rem 1.2rem 1.2rem 3.5rem;
    border: none;
    outline: none;
    font-size: 1rem;
    color: var(--dark-gray);
    background: transparent;
}

.search-input::placeholder {
    color: #aaa;
}

.search-btn {
    padding: 0 2rem;
    background: var(--primary-red);
    color: var(--primary-white);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.3s ease;
}

.search-btn:hover {
    background: var(--secondary-red);
}

/* 案例画廊 */
.cases-gallery {
    margin: 4rem 0;
}

.gallery-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    color: var(--primary-red);
    font-size: 2.2rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--primary-red);
}

.section-subtitle {
    color: var(--medium-gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 1rem auto 0;
    line-height: 1.6;
}

/* 案例网格 - 简化版 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.case-item {
    position: relative;
    background: var(--primary-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(211, 47, 47, 0.15);
}

.case-logo {
    max-width: 180px;
    max-height: 86px;
    object-fit: contain;
    transition: transform 0.4s ease;
}

/* 简化的悬停效果 - 只放大图片 */
.case-item:hover .case-logo {
    transform: scale(1.05);
}

/* 移除所有复杂的覆盖层和3D效果 */
.case-overlay,
.case-item-inner {
    display: none;
}

/* 加载中状态 */
.loading-cases {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--medium-gray);
}

.loading-spinner {
    font-size: 2.5rem;
    color: var(--primary-red);
    margin-bottom: 1rem;
}

/* 加载更多按钮 */
.load-more-container {
    text-align: center;
    margin-top: 3rem;
}

.load-more-btn {
    padding: 1rem 2.5rem;
    background: var(--primary-white);
    border: 2px solid var(--primary-red);
    border-radius: 30px;
    color: var(--primary-red);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: 0 5px 15px rgba(211, 47, 47, 0.1);
}

.load-more-btn:hover {
    background: var(--primary-red);
    color: var(--primary-white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(211, 47, 47, 0.2);
}

.load-more-btn:active {
    transform: translateY(-1px);
}

/* 特色案例展示 */
.featured-cases {
    margin: 6rem 0;
    padding: 3rem;
    background: linear-gradient(135deg, #fff5f5, #fff);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.featured-case {
    background: var(--primary-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.featured-case:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(211, 47, 47, 0.15);
}

.featured-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: fill;
    transition: transform 0.5s ease;
}

.featured-case:hover .featured-image img {
    transform: scale(1.05);
}

.featured-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.case-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--primary-red);
    color: var(--primary-white);
    font-size: 0.8rem;
    border-radius: 20px;
    font-weight: 600;
}

.featured-content {
    padding: 1.8rem;
}

.featured-content h3 {
    color: var(--dark-gray);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.case-desc {
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.case-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.info-item i {
    color: var(--primary-red);
    font-size: 0.9rem;
}

/* 合作流程 */
.cooperation-process {
    margin: 6rem 0;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.process-step {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--primary-white);
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(211, 47, 47, 0.1);
}

.step-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2.5rem;
    font-weight: bold;
    color: rgba(211, 47, 47, 0.1);
    line-height: 1;
}

.step-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--light-red), #ffeaea);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-red);
    font-size: 1.8rem;
    transition: all 0.3s ease;
}

.process-step:hover .step-icon {
    background: var(--primary-red);
    color: var(--primary-white);
    transform: scale(1.1);
}

.process-step h3 {
    color: var(--dark-gray);
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.process-step p {
    color: var(--medium-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 合作咨询 */
.cooperation-consult {
    background: linear-gradient(135deg, var(--primary-red), var(--secondary-red));
    border-radius: 20px;
    padding: 4rem 3rem;
    text-align: center;
    color: var(--primary-white);
    margin: 6rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.cooperation-consult::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none" opacity="0.1"><path d="M0,0 L100,0 L100,100 Z" fill="white"/></svg>');
    background-size: cover;
}

.consult-content {
    position: relative;
    z-index: 1;
}

.consult-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.consult-content p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.consult-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.consult-btn {
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.consult-btn.primary {
    background: var(--primary-white);
    color: var(--primary-red);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.consult-btn.primary:hover {
    background: #f8f8f8;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.consult-btn.secondary {
    background: transparent;
    color: var(--primary-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.consult-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .cases-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 2rem;
    }
}

@media (max-width: 992px) {
    .cases-stats {
        padding: 2rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .featured-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .cases-stats {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .stat-item {
        min-width: 140px;
        padding: 0.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 1rem;
    }

    .cases-filter {
        padding: 1rem;
        gap: 0.8rem;
    }

    .filter-btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .cases-search {
        margin: 1.5rem 0 2.5rem;
    }

    .search-container {
        flex-direction: column;
        border-radius: 15px;
    }

    .search-input {
        padding: 1rem 1rem 1rem 3rem;
    }

    .search-btn {
        padding: 1rem;
        border-radius: 0 0 15px 15px;
    }

    .cases-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1.5rem;
    }

    .case-item {
        height: 140px;
        padding: 1rem;
    }

    .case-logo {
        max-width: 150px;
        max-height: 70px;
    }

    .featured-cases {
        padding: 2rem 1.5rem;
        margin: 4rem 0;
    }

    .featured-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .process-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .cooperation-process,
    .cooperation-consult {
        margin: 4rem 0 2rem;
        padding: 2.5rem 1.5rem;
    }

    .consult-content h2 {
        font-size: 2rem;
    }

    .consult-buttons {
        flex-direction: column;
        align-items: center;
    }

    .consult-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.8rem;
    }

    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }

    .case-item {
        height: 120px;
        padding: 0.8rem;
    }

    .case-logo {
        max-width: 120px;
        max-height: 60px;
    }

    .cases-stats {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .stat-item {
        width: 100%;
        max-width: 200px;
    }

    .featured-image {
        height: 180px;
    }

    .process-step {
        padding: 1.5rem 1rem;
    }

    .step-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* 确保图片正确显示 */
.case-logo {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* 图片加载失败时的占位符 */
.case-logo:not([src]),
.case-logo[src=""],
.case-logo[src*="undefined"] {
    width: 180px;
    height: 86px;
    background-color: #f5f5f5;
    border: 1px dashed #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 12px;
}

/* 移除所有不需要的动画效果 */
.case-item,
.featured-case,
.process-step {
    animation: none !important;
}