/* ========================================
   晟洲信息科技 - 地理空间/测量科技风格
   ======================================== */

:root {
    --gis-green: #2e7d32;
    --gis-light: #66bb6a;
    --gis-dark: #1b5e20;
    --tech-cyan: #00acc1;
    --grid-color: rgba(46, 125, 50, 0.15);
    --spatial-blue: #0277bd;
}

/* GIS地图网格背景 */
.hero {
    position: relative;
    height: 100vh;
    background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 50%, #388e3c 100%);
    overflow: hidden;
}

/* 动态网格效果 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px),
        linear-gradient(var(--grid-color) 0.5px, transparent 0.5px),
        linear-gradient(90deg, var(--grid-color) 0.5px, transparent 0.5px);
    background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
    background-position: -1px -1px, -1px -1px, -0.5px -0.5px, -0.5px -0.5px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

/* 测量坐标点动画 */
.hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    top: 20%;
    right: 10%;
    background: 
        radial-gradient(circle, var(--tech-cyan) 2px, transparent 2px) 0 0,
        radial-gradient(circle, rgba(0, 172, 193, 0.5) 1px, transparent 1px) 25px 25px;
    background-size: 50px 50px;
    border-radius: 50%;
    opacity: 0.3;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.2); opacity: 0.5; }
}

/* 数据卡片网格布局 */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.overview-card {
    background: #fff;
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border-left: 5px solid var(--gis-green);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--gis-light), transparent);
    opacity: 0.1;
    transition: all 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 16px 48px rgba(46, 125, 50, 0.2);
}

.overview-card:hover::before {
    transform: scale(1.5);
    opacity: 0.2;
}

.overview-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

/* 核心业务 - 画廊网格风格 */
.business-gallery {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 12px 40px rgba(46, 125, 50, 0.3);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(to top, rgba(46, 125, 50, 0.95), transparent);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay p {
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* 业务模块头部 */
.business-header {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 32px;
    padding: 32px;
    background: linear-gradient(135deg, #f1f8f4 0%, #e8f5e9 100%);
    border-radius: 16px;
    border-left: 6px solid var(--gis-green);
}

.business-icon {
    font-size: 56px;
    line-height: 1;
}

.business-header div {
    flex: 1;
}

.business-header h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gis-dark);
    margin-bottom: 12px;
}

.business-header p {
    font-size: 16px;
    color: #546e7a;
    line-height: 1.6;
}

/* 详情按钮 - 绿色GIS风格 */
.business-detail-btn {
    display: inline-block;
    margin-top: 16px;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--gis-green) 0%, var(--gis-light) 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(46, 125, 50, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.business-detail-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(46, 125, 50, 0.4);
    background: linear-gradient(135deg, var(--gis-dark) 0%, var(--gis-green) 100%);
    border-color: rgba(255, 255, 255, 0.3);
}

/* 地图点标记效果 */
.section-header::before {
    content: '📍';
    font-size: 32px;
    display: block;
    margin-bottom: 16px;
    text-align: center;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 数据统计卡片 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 60px 0;
    background: linear-gradient(135deg, #f1f8f4 0%, #ffffff 100%);
}

.stat-card {
    text-align: center;
    padding: 40px 24px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--gis-green);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(46, 125, 50, 0.15);
}

.stat-number {
    font-size: 56px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gis-green), var(--tech-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 16px;
    color: #546e7a;
    font-weight: 500;
}

/* 坐标系导航 */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 3px solid var(--gis-green);
    box-shadow: 0 4px 24px rgba(46, 125, 50, 0.1);
}

.logo h1 {
    background: linear-gradient(135deg, var(--gis-dark), var(--gis-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 响应式 */
@media (max-width: 1200px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-gallery {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .business-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .business-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
}