/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* 页面标题 */
.header {
    text-align: center;
    padding: 30px 20px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.header h1 {
    font-size: 2.2em;
    margin-bottom: 8px;
    font-weight: 700;
}

.subtitle {
    font-size: 1em;
    opacity: 0.9;
}

/* 地图容器 */
.map-container {
    padding: 20px;
    background: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
}

.china-map {
    width: 100%;
    max-width: 100%;
    height: 600px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.china-map svg {
    width: 100%;
    height: 100%;
}

/* SVG 省份样式 */
.province-path {
    fill: #e0e0e0;
    stroke: #ffffff;
    stroke-width: 1;
    cursor: pointer;
    transition: all 0.3s ease;
}

.province-path:hover {
    fill: #bdbdbd;
}

.province-path.selected {
    fill: #ff6b6b;
    stroke: #ff5252;
    stroke-width: 2;
}

/* 统计信息 */
.stats {
    text-align: center;
    padding: 15px;
    background: white;
    border-top: 1px solid #e0e0e0;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.stats-text {
    font-size: 1.2em;
    color: #333;
    font-weight: 500;
}

#selected-count {
    color: #2196F3;
    font-weight: 700;
    font-size: 1.2em;
}

#total-count {
    color: #667eea;
    font-weight: 700;
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 15px;
}

.action-btn {
    padding: 10px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
}

#select-all-btn {
    background: #667eea;
    color: white;
}

#select-all-btn:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

#clear-all-btn {
    background: #f5f5f5;
    color: #333;
    border: 2px solid #e0e0e0;
}

#clear-all-btn:hover {
    background: #e8e8e8;
    border-color: #bdbdbd;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 省份列表容器 */
.provinces-container {
    padding: 30px 25px;
    background: white;
}

.province-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

/* 省份按钮 */
.province-btn {
    padding: 10px 20px;
    background: #f5f5f5;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1em;
    color: #333;
    transition: all 0.3s ease;
    font-weight: 500;
    outline: none;
}

.province-btn:hover {
    background: #e8e8e8;
    border-color: #bdbdbd;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.province-btn.selected {
    background: #2196F3;
    border-color: #1976D2;
    color: white;
    font-weight: 600;
}

.province-btn.selected:hover {
    background: #1976D2;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4);
}

/* 地图提示框 */
.map-tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.85);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.9em;
    pointer-events: none;
    z-index: 1000;
    display: none;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 95%;
    }

    .china-map {
        height: 550px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 20px 15px 15px;
    }

    .header h1 {
        font-size: 1.6em;
    }

    .subtitle {
        font-size: 0.95em;
    }

    .map-container {
        padding: 15px 10px;
    }

    .china-map {
        height: 450px;
    }

    .provinces-container {
        padding: 20px 15px;
    }

    .province-btn {
        padding: 8px 16px;
        font-size: 0.9em;
    }

    .stats {
        padding: 12px;
    }

    .stats-text {
        font-size: 1.05em;
    }

    .action-buttons {
        flex-direction: column;
        width: 100%;
    }

    .action-btn {
        width: 100%;
    }
}