/* ==================== 案例列表页面样式 ==================== */

/* 页面标题区域 */
.page-banner {
    background: linear-gradient(180deg, #f0f9f4 0%, #ffffff 100%);
    padding: 48px 20px 32px;
    text-align: center;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.page-banner h1 span { 
    color: var(--primary-green); 
}

.page-banner p {
    font-size: 16px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 一级分类 */
.category-nav { 
    background: #fff; 
    border-bottom: 1px solid var(--border-color); 
}

.category-container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 20px; 
}

.category-title { 
    font-size: 15px; 
    font-weight: 600; 
    color: var(--text-dark); 
    margin-bottom: 16px; 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.category-title::before { 
    content: ''; 
    display: inline-block; 
    width: 4px; 
    height: 18px; 
    background: var(--primary-green); 
    border-radius: 2px; 
}

.category-list { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 10px; 
}

.category-item { 
    padding: 8px 22px; 
    background: var(--bg-light); 
    border-radius: 24px; 
    cursor: pointer; 
    font-size: 14px; 
    font-weight: 500; 
    transition: all 0.3s; 
    border: 2px solid transparent; 
    color: var(--text-gray); 
    text-decoration: none; 
}

.category-item:hover { 
    border-color: var(--primary-green); 
    color: var(--primary-green); 
}

.category-item.active { 
    background: linear-gradient(135deg, #19b955 0%, #1ed961 100%); 
    color: white; 
    box-shadow: 0 4px 15px rgba(25, 185, 85, 0.3); 
}

/* 我们的优势 */
.advantages-section { 
    background: #fff; 
    border-bottom: 1px solid var(--border-color);
}

.advantages-container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 28px 20px; 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 24px; 
}

.advantage-item { 
    display: flex; 
    align-items: center; 
    gap: 16px; 
    padding: 20px 24px; 
    background: linear-gradient(135deg, #f0f9f4 0%, #ffffff 100%); 
    border: 1px solid #e8f5ee; 
    border-radius: 16px; 
    transition: all 0.3s; 
}

.advantage-item:hover { 
    transform: translateY(-3px); 
    box-shadow: 0 8px 24px rgba(25, 185, 85, 0.12); 
    border-color: var(--primary-green); 
}

.advantage-icon { 
    width: 52px; 
    height: 52px; 
    background: linear-gradient(135deg, #19b955 0%, #1ed961 100%); 
    border-radius: 14px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 24px; 
    color: white; 
    flex-shrink: 0; 
    box-shadow: 0 4px 12px rgba(25, 185, 85, 0.25);
}

.advantage-content { 
    flex: 1; 
}

.advantage-title { 
    font-size: 16px; 
    font-weight: 700; 
    color: var(--text-dark); 
    margin-bottom: 4px; 
}

.advantage-desc { 
    font-size: 13px; 
    color: var(--text-gray); 
    line-height: 1.5; 
}

/* 二级分类 */
.subcategory-nav { 
    background: var(--bg-light); 
    border-bottom: 1px solid var(--border-color); 
}

.subcategory-container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 20px; 
}

.subcategory-title { 
    font-size: 15px; 
    font-weight: 600; 
    color: var(--text-dark); 
    margin-bottom: 16px; 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.subcategory-title::before { 
    content: ''; 
    display: inline-block; 
    width: 4px; 
    height: 18px; 
    background: var(--primary-orange); 
    border-radius: 2px; 
}

.subcategory-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); 
    gap: 14px; 
}

.subcategory-item { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
    padding: 14px 16px; 
    background: #fff; 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    cursor: pointer; 
    transition: all 0.3s; 
    text-decoration: none;
}

.subcategory-item:hover { 
    border-color: var(--primary-green); 
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.subcategory-item.active { 
    background: linear-gradient(135deg, #19b955 0%, #1ed961 100%); 
    color: white; 
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(25, 185, 85, 0.3);
}

.subcategory-icon { 
    width: 42px; 
    height: 42px; 
    background: rgba(25, 185, 85, 0.1); 
    border-radius: 10px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 20px; 
    flex-shrink: 0;
}

.subcategory-item.active .subcategory-icon {
    background: rgba(255,255,255,0.2);
}

.subcategory-text { 
    flex: 1; 
}

.subcategory-name { 
    font-size: 14px; 
    font-weight: 600; 
    color: var(--text-dark); 
    margin-bottom: 2px; 
}

.subcategory-item.active .subcategory-name { 
    color: white; 
}

.subcategory-count { 
    font-size: 12px; 
    color: var(--text-light); 
}

.subcategory-item.active .subcategory-count { 
    color: rgba(255,255,255,0.8); 
}

/* 案例列表 */
.cases-section { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 30px 20px; 
}

.cases-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    margin-bottom: 24px; 
}

.cases-header-title { 
    font-size: 18px; 
    font-weight: 700; 
    color: var(--text-dark); 
    display: flex; 
    align-items: center; 
    gap: 8px; 
}

.cases-header-title::before { 
    content: ''; 
    display: inline-block; 
    width: 4px; 
    height: 20px; 
    background: var(--primary-green); 
    border-radius: 2px; 
}

.cases-count { 
    font-size: 14px; 
    color: var(--text-gray); 
}

.cases-count span { 
    color: var(--primary-green); 
    font-weight: 700; 
}

.cases-grid { 
    display: grid; 
    grid-template-columns: repeat(4, 1fr); 
    gap: 20px; 
    align-items: start; 
}

.case-card { 
    background: #fff; 
    border-radius: 16px; 
    overflow: hidden; 
    border: 1px solid var(--border-color); 
    transition: all 0.3s; 
    cursor: pointer; 
    text-decoration: none; 
    display: flex; 
    flex-direction: column; 
}

.case-card:hover { 
    border-color: var(--primary-green); 
    transform: translateY(-4px); 
    box-shadow: var(--shadow-lg); 
}

.case-image { 
    position: relative; 
    width: 100%; 
    height: 170px; 
    background: linear-gradient(135deg, #19b955 0%, #1ed961 100%); 
    overflow: hidden; 
    flex-shrink: 0; 
}

.case-image img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
}

.case-qrcode { 
    position: absolute; 
    top: 0; 
    left: 0; 
    right: 0; 
    bottom: 0; 
    background: rgba(0,0,0,0.85); 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    opacity: 0; 
    transition: opacity 0.3s; 
}

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

.case-qrcode img { 
    width: 100px; 
    height: 100px; 
    background: white; 
    padding: 8px; 
    border-radius: 8px; 
}

.case-qrcode p { 
    color: white; 
    margin-top: 10px; 
    font-size: 12px; 
}

.case-info { 
    padding: 16px; 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
}

.case-title { 
    font-size: 14px; 
    font-weight: 700; 
    color: var(--text-dark); 
    margin-bottom: 8px; 
    overflow: hidden; 
    text-overflow: ellipsis; 
    white-space: nowrap; 
}

.case-meta { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    font-size: 13px; 
    color: var(--text-light); 
}

.case-tag-inline { 
    display: inline-block; 
    background: rgba(25, 185, 85, 0.1); 
    color: var(--primary-green); 
    padding: 3px 10px; 
    border-radius: 12px; 
    font-size: 12px; 
    font-weight: 600; 
}

.case-views { 
    display: flex; 
    align-items: center; 
    gap: 5px; 
}

.case-views::before { 
    content: "👁"; 
    font-size: 14px; 
}

.empty-state { 
    text-align: center; 
    padding: 60px 20px; 
    color: var(--text-light); 
}

.empty-state p { 
    font-size: 16px; 
    margin-bottom: 10px; 
}

/* 分页 */
.pagination { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    gap: 8px; 
    margin-top: 48px; 
    padding-bottom: 48px; 
}

.page-btn { 
    padding: 8px 16px; 
    border: 1px solid var(--border-color); 
    background: #fff; 
    border-radius: 20px; 
    cursor: pointer; 
    font-size: 14px; 
    transition: all 0.3s; 
    color: var(--text-gray); 
    font-weight: 500; 
    text-decoration: none; 
}

.page-btn:hover { 
    border-color: var(--primary-green); 
    color: var(--primary-green); 
}

.page-btn.active { 
    background: linear-gradient(135deg, #19b955 0%, #1ed961 100%); 
    color: white; 
    border-color: transparent; 
    box-shadow: 0 2px 8px rgba(25, 185, 85, 0.3); 
}

.page-btn:disabled { 
    opacity: 0.4; 
    cursor: not-allowed; 
}

/* 响应式 */
@media (max-width: 1200px) {
    .cases-grid { 
        grid-template-columns: repeat(3, 1fr); 
    }
    
    .subcategory-grid { 
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); 
    }

    .advantages-container { 
        grid-template-columns: repeat(2, 1fr); 
    }
}

@media (max-width: 768px) {
    .cases-grid { 
        grid-template-columns: repeat(2, 1fr); 
        gap: 12px; 
    }

    .case-image { 
        height: 130px; 
    }
    
    .category-list { 
        gap: 8px; 
    }
    
    .category-item { 
        padding: 7px 16px; 
        font-size: 13px; 
    }
    
    .subcategory-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
    
    .page-banner h1 { 
        font-size: 28px; 
    }

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

    .advantage-item { 
        padding: 16px 18px; 
    }

    .advantage-icon { 
        width: 44px; 
        height: 44px; 
        font-size: 20px; 
        border-radius: 12px; 
    }

    .advantage-title { 
        font-size: 15px; 
    }
}