/* 冠景建设 - 增强样式 */

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

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background: #2c5282;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #1a365d;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-contact {
    background: #e53e3e;
}

.btn-contact:hover {
    background: #c53030;
}

/* 卡片悬停效果 */
.service, .project {
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.service:hover, .project:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-color: #cbd5e0;
}

/* 响应式表格 */
.table-responsive {
    overflow-x: auto;
    margin: 2rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

th {
    background: #2c5282;
    color: white;
    font-weight: bold;
}

tr:hover {
    background: #f7fafc;
}

/* 页脚增强 */
footer {
    background: #1a365d;
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #90cdf4;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section p {
    margin: 0.5rem 0;
    color: #cbd5e0;
    font-size: 0.9rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #2d3748;
    color: #a0aec0;
    font-size: 0.9rem;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .service, .project {
        padding: 1.5rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.8rem;
    }
}

/* 项目筛选按钮 */
.filter-btn {
    background: #e2e8f0;
    color: #4a5568;
    border: none;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    margin: 0.2rem;
}

.filter-btn:hover {
    background: #cbd5e0;
    transform: translateY(-2px);
}

.filter-btn.active {
    background: #2c5282;
    color: white;
    font-weight: bold;
}

/* 项目标签 */
.project-tag {
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    display: inline-block;
    margin: 0.2rem;
}

.project-tag.基坑支护 { background: #bee3f8; color: #2c5282; }
.project-tag.桩基工程 { background: #c6f6d5; color: #276749; }
.project-tag.地基处理 { background: #fed7d7; color: #9b2c2c; }
.project-tag.市政工程 { background: #e9d8fd; color: #553c9a; }
.project-tag[class*="201"] { background: #fefcbf; color: #744210; }

/* 项目动画 */
.project {
    transition: all 0.4s ease;
    opacity: 1;
    transform: scale(1);
}

.project.hidden {
    opacity: 0;
    transform: scale(0.8);
    height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

/* 打印样式 */
@media print {
    .btn, nav, .filter-btn {
        display: none;
    }
    
    body {
        color: black;
        background: white;
    }
    
    .service, .project {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}
/* 图片增强样式 */
.project img {
    transition: all 0.3s ease;
    border: 2px solid #f0f0f0;
}

.project img:hover {
    transform: scale(1.02);
    border-color: #2c5282;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* 图片加载效果 */
.project img {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 图片容器优化 */
.project {
    position: relative;
    overflow: hidden;
}

.project::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 70%, rgba(0,0,0,0.1));
    pointer-events: none;
}

/* 响应式图片优化 */
@media (max-width: 768px) {
    .project img {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .project img {
        height: 120px;
    }
}

/* 图片占位符美化 */
.no-image-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 6px;
    height: 180px;
    margin-bottom: 1rem;
}

/* 图片标题样式 */
.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 0.5rem;
    font-size: 0.9rem;
    text-align: center;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.project:hover .image-caption {
    transform: translateY(0);
}