/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
}

/* 主容器 - 使用Flexbox */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* 左侧控制面板 */
.control-panel {
    width: 320px;
    background: white;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* 面板头部 */
.panel-header {
    padding: 30px 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.panel-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.header-line {
    width: 60px;
    height: 3px;
    background: rgba(255, 255, 255, 0.8);
    margin: 0 auto;
    border-radius: 2px;
}

/* 搜索表单 */
.search-form {
    flex: 1;
    padding: 25px;
}

/* 站点组 */
.station-group {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.station-group:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.station-group h3 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

/* 站点提示 */
.station-tip {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    margin-bottom: 15px;
    background: rgba(78, 205, 196, 0.1);
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tip-end {
    background: rgba(255, 107, 107, 0.1);
}

.station-tip:hover {
    border-color: currentColor;
    transform: translateX(5px);
}

.station-tip.active {
    border-color: currentColor;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.tip-icon {
    font-size: 18px;
    margin-right: 8px;
}

/* 选择组 */
.select-group {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.select-group label {
    width: 60px;
    font-weight: 500;
    color: #666;
}

.select-group select {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: white;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-group select:hover {
    border-color: #4ecdc4;
}

.select-group select:focus {
    outline: none;
    border-color: #4ecdc4;
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

/* 搜索按钮 */
.search-btn {
    width: 100%;
    padding: 15px 20px;
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(78, 205, 196, 0.3);
}

.search-btn:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 20px;
}

/* 面板底部 */
.panel-footer {
    padding: 20px;
    text-align: center;
    font-size: 12px;
    color: #999;
    border-top: 1px solid #eee;
}

/* 右侧地图区域 */
.map-container {
    flex: 1;
    position: relative;
    background: #e9ecef;
}

/* SVG包装器 */
.svg-wrapper {
    width: 100%;
    height: 100%;
    padding: 20px;
}

.svg-wrapper embed {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* 缩略图容器 */
.thumbnail-container {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 250px;
    height: 200px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    z-index: 100; /* 确保在地图之上 */
}

.thumbnail-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.thumbnail-wrapper embed {
    width: 100%;
    height: 100%;
}

.scope-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
}

.modal-header h2 {
    font-size: 22px;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 25px;
    max-height: 60vh;
    overflow-y: auto;
}

.result-summary {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
}

.result-icon {
    font-size: 32px;
}

.result-divider {
    height: 1px;
    background: #eee;
    margin: 20px 0;
}

.result-details h4 {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
}

.result-path {
    line-height: 2;
    color: #555;
}

.modal-footer {
    padding: 20px 25px;
    background: #f8f9fa;
    text-align: right;
}

.modal-btn {
    padding: 10px 30px;
    background: #4ecdc4;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-btn:hover {
    background: #44a08d;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .control-panel {
        width: 100%;
        height: auto;
        max-height: 50vh;
    }
    
    .map-container {
        height: 50vh;
    }
    
    .thumbnail-container {
        display: none;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #4ecdc4;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}