/* ========== Citywalk 页面样式 ========== */
        /* CSS 变量：主题色由 app.js 动态写入 */
        :root {
            --primary: #ff7e5f;
            --primary-light: #feb47b;
            --primary-dark: #e85d40;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --border-light: #e2e8f0;
            --text-dark: #1e293b;
            --text-medium: #475569;
            --text-light: #94a3b8;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s ease;
        }

        /* 热门城市标签样式 */
        .hot-city-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(255,255,255,0.25);
            color: white;
            border-radius: 12px;
            font-size: 11px;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid rgba(255,255,255,0.3);
        }
        .hot-city-tag:hover {
            background: rgba(255,255,255,0.4);
            transform: translateY(-1px);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-light);
        }

        /* 地图容器 */
        #container {
            width: 100vw;
            height: 100vh;
            position: relative;
        }

        /* 加载动画 - 分步骤进度 */
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(4px);
            z-index: 999;
            display: none;
            justify-content: center;
            align-items: center;
        }

        .loading-card {
            background: white;
            border-radius: var(--radius-lg);
            padding: 32px 40px;
            box-shadow: var(--shadow-lg);
            text-align: center;
            max-width: 320px;
        }

        .loading-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 24px;
        }

        .loading-steps {
            text-align: left;
        }

        .loading-step {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-light);
            transition: all 0.3s ease;
        }

        .loading-step.active {
            color: var(--primary);
            font-weight: 500;
        }

        .loading-step.done {
            color: #22c55e;
        }

        .loading-step .step-icon {
            font-size: 18px;
            width: 24px;
            text-align: center;
        }

        .loading-step.active .step-icon {
            animation: bounce 0.6s ease infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-3px); }
        }

        .loading-step .step-status {
            margin-left: auto;
            font-size: 12px;
        }

        .loading-step.done .step-status::after {
            content: '✓';
            color: #22c55e;
        }

        .loading-step.active .step-status::after {
            content: '';
            display: inline-block;
            width: 12px;
            height: 12px;
            border: 2px solid var(--primary);
            border-top-color: transparent;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* 错误提示 */
        .error-toast {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #ef4444, #f87171);
            color: white;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            z-index: 1000;
            display: none;
            font-size: 14px;
            font-weight: 500;
            box-shadow: var(--shadow-lg);
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            from { transform: translateX(-50%) translateY(-20px); opacity: 0; }
            to { transform: translateX(-50%) translateY(0); opacity: 1; }
        }

        /* 控制面板 - 玻璃拟态风格 */
        .control-panel {
            position: fixed;
            top: 20px;
            right: 20px;
            width: 340px;
            height: calc(100vh - 40px);
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            z-index: 100;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.8);
            display: flex;
            flex-direction: column;
        }

        /* 面板头部 - 渐变背景 */
        .panel-header {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            padding: 20px 20px;
            color: white;
            flex-shrink: 0;
        }

        .panel-header h2 {
            margin: 0;
            font-size: 20px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

.panel-header-title-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .panel-header h2::before {
            content: '🚶';
            font-size: 22px;
        }

        /* 悬浮返回主页按钮样式（地图上的圆形按钮） */
        .back-home-fab {
            position: fixed;
            top: 16px;
            left: 16px;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            border: none;
            background: rgba(15, 23, 42, 0.82);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 10px 25px rgba(15, 23, 42, 0.35);
            cursor: pointer;
            z-index: 150;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
        }

        .back-home-fab:hover {
            transform: translateY(-1px);
            box-shadow: 0 14px 30px rgba(15, 23, 42, 0.45);
            background: rgba(15, 23, 42, 0.9);
        }

        .back-home-fab:active {
            transform: translateY(1px) scale(0.96);
            box-shadow: 0 6px 18px rgba(15, 23, 42, 0.3);
        }

        @media (max-width: 768px) {
            .back-home-fab {
                top: 14px;
                left: 12px;
                width: 36px;
                height: 36px;
                font-size: 16px;
                box-shadow: 0 8px 20px rgba(15, 23, 42, 0.35);
            }
        }

        .panel-body {
            padding: 20px;
            overflow-y: auto;
            flex: 1;
        }

        /* 自定义滚动条 - panel-body */
        .panel-body::-webkit-scrollbar {
            width: 6px;
        }

        .panel-body::-webkit-scrollbar-track {
            background: var(--bg-light);
            border-radius: 3px;
        }

        .panel-body::-webkit-scrollbar-thumb {
            background: linear-gradient(180deg, var(--primary-light), var(--primary));
            border-radius: 3px;
        }

        .panel-body::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        /* 天气卡片 - 渐变背景 */
        .weather-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            color: white;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .weather-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
        }

        .weather-icon {
            font-size: 36px;
            filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
        }

        .weather-info {
            flex: 1;
        }

        .weather-info .title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .weather-info .desc {
            font-size: 12px;
            opacity: 0.9;
        }

        /* 起终点状态卡片 */
        .status-group {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
        }

        .status-card {
            flex: 1;
            padding: 14px 16px;
            background: var(--bg-light);
            border: 2px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: var(--transition);
            cursor: pointer;
        }

        .status-card:hover {
            border-color: var(--primary-light);
            background: #fff8f5;
        }

        .status-card.selected {
            border-color: var(--primary);
            background: linear-gradient(135deg, #fff5f2, #fff9f7);
            box-shadow: 0 0 0 3px rgba(255, 126, 95, 0.1);
        }

        .status-card .label {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 6px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .status-card .value {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            word-break: break-all;
        }

        .status-card.selected .value {
            color: var(--primary-dark);
        }

        /* 筛选标题 */
        .filter-title {
            font-size: 13px;
            font-weight: 600;
            margin: 16px 0 10px 0;
            color: var(--text-medium);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-title::before {
            content: '';
            width: 3px;
            height: 14px;
            background: linear-gradient(180deg, var(--primary), var(--primary-light));
            border-radius: 2px;
        }

        /* POI类型按钮组 */
        .poi-type-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .poi-type-btn {
            padding: 8px 14px;
            border: 1.5px solid var(--border-light);
            border-radius: 20px;
            font-size: 13px;
            cursor: pointer;
            background: white;
            color: var(--text-medium);
            transition: var(--transition);
            font-weight: 500;
        }

        .poi-type-btn:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: #fff8f5;
        }

        .poi-type-btn.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255, 126, 95, 0.3);
        }

        /* 时间输入组 */
        .time-input-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .time-input-group input {
            flex: 1;
            padding: 12px 16px;
            border: 2px solid var(--border-light);
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
            background: white;
        }

        .time-input-group input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 126, 95, 0.1);
        }

        .unit {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
        }

        /* 按钮组 */
        .btn-group {
            display: flex;
            gap: 12px;
            margin: 20px 0;
        }

        .btn {
            flex: 1;
            padding: 12px 16px;
            border: none;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-reset {
            background: var(--bg-light);
            color: var(--text-medium);
            border: 2px solid var(--border-light);
        }

        .btn-reset:hover {
            background: #f1f5f9;
            border-color: #cbd5e1;
        }

        .btn-plan {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            box-shadow: 0 4px 12px rgba(255, 126, 95, 0.3);
        }

        .btn-plan:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 126, 95, 0.4);
        }

        .btn-plan:disabled {
            background: #e2e8f0;
            color: #94a3b8;
            cursor: not-allowed;
            box-shadow: none;
        }

        /* 生成方案按钮 */
        .btn-generate-plan {
            width: 100%;
            padding: 12px 16px;
            border: none;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #3b82f6, #60a5fa);
            color: white;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            margin: 8px 0;
            display: none;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
        }

        .btn-generate-plan:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
        }

        /* 结果区域 */
        .result-area {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            display: none;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .result-header {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .result-header::before {
            content: '✅';
            font-size: 16px;
        }

        .result-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 14px;
            margin: 8px 0;
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
        }

        .result-item .label {
            color: var(--text-medium);
            font-weight: 500;
        }

        .result-item .highlight {
            font-weight: 700;
            color: var(--primary-dark);
            font-size: 15px;
        }

        /* POI列表 */
        .poi-list {
            margin-top: 12px;
            max-height: 180px;
            overflow-y: auto;
            padding-right: 4px;
        }

        .poi-list::-webkit-scrollbar {
            width: 4px;
        }

        .poi-list::-webkit-scrollbar-track {
            background: var(--bg-light);
            border-radius: 2px;
        }

        .poi-list::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 2px;
        }

        .poi-item {
            padding: 10px 12px;
            font-size: 13px;
            color: var(--text-medium);
            cursor: pointer;
            border-radius: var(--radius-sm);
            margin-bottom: 6px;
            background: white;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .poi-item:hover {
            color: var(--primary-dark);
            border-color: var(--primary-light);
            background: #fff8f5;
            transform: translateX(4px);
        }

        .poi-item strong {
            color: var(--text-dark);
        }

        /* POI序号标记样式（地图上的） */
        .poi-number-marker {
            position: absolute;
            top: -5px;
            right: -5px;
            width: 22px;
            height: 22px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
            border: 2px solid white;
            z-index: 101;
            box-shadow: 0 2px 6px rgba(255, 126, 95, 0.4);
        }

        /* 响应式适配 - 全面移动端优化 */
        @media (max-width: 768px) {
            .control-panel {
                width: 100%;
                right: 0;
                left: 0;
                top: auto;
                bottom: 0;
                height: auto;
                /* 默认只显示头部，让用户看到更多地图 */
                max-height: none;
                border-radius: 20px 20px 0 0;
                box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
                border: none;
                border-top: 1px solid rgba(255,255,255,0.8);
                /* 使用 transform 实现硬件加速，拖动更流畅 */
                will-change: transform;
                transform: translateZ(0);
            }

            .panel-header {
                padding: 24px 20px 16px 20px;
                border-radius: 20px 20px 0 0;
                /* 增加拖动区域 */
                position: relative;
                cursor: grab;
                user-select: none;
                -webkit-user-select: none;
                touch-action: none;
                /* 最小高度确保可拖动 */
                min-height: 56px;
                display: flex;
                align-items: center;
            }

            .panel-header:active {
                cursor: grabbing;
            }

            .panel-header h2 {
                font-size: 17px;
                pointer-events: none;
                margin: 0;
            }

            .panel-body {
                padding: 0 20px 20px 20px;
                padding-bottom: calc(20px + env(safe-area-inset-bottom, 0px));
                /* 默认收起状态 */
                max-height: 0;
                overflow: hidden;
                opacity: 0;
                transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                            opacity 0.25s ease,
                            padding 0.3s ease;
            }

            /* 展开状态 */
            .control-panel.expanded .panel-body {
                max-height: 55vh;
                overflow-y: auto;
                opacity: 1;
                padding-top: 16px;
                /* 优化滚动性能 */
                -webkit-overflow-scrolling: touch;
                overscroll-behavior: contain;
            }

            /* 面板内容收起时的隐藏 */
            .panel-body {
                scrollbar-width: none; /* Firefox */
                -ms-overflow-style: none; /* IE 10+ */
            }

            .panel-body::-webkit-scrollbar {
                display: none; /* Chrome Safari */
            }

            /* 拖动指示器 */
            .panel-header::before {
                content: '';
                position: absolute;
                top: 8px;
                left: 50%;
                transform: translateX(-50%);
                width: 36px;
                height: 4px;
                background: rgba(255,255,255,0.6);
                border-radius: 2px;
                pointer-events: none;
                transition: width 0.2s ease, background 0.2s ease;
            }

            .panel-header:active::before {
                width: 48px;
                background: rgba(255,255,255,0.9);
            }

            /* 展开状态指示 */
            .control-panel.expanded .panel-header::after {
                content: '▼';
                position: absolute;
                right: 20px;
                top: 50%;
                transform: translateY(-50%);
                font-size: 12px;
                color: rgba(255,255,255,0.8);
                pointer-events: none;
            }

            .control-panel:not(.expanded) .panel-header::after {
                content: '▲';
                position: absolute;
                right: 20px;
                top: 50%;
                transform: translateY(-50%);
                font-size: 12px;
                color: rgba(255,255,255,0.8);
                pointer-events: none;
            }

            /* 展开时的遮罩层（点击地图收起面板） */
            .control-panel.expanded::after {
                content: '';
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(0,0,0,0.2);
                z-index: -1;
                opacity: 0;
                transition: opacity 0.3s ease;
                pointer-events: none;
            }

            .control-panel.expanded:active::after {
                opacity: 1;
            }

            .poi-type-btn {
                padding: 8px 14px;
                font-size: 13px;
            }

            /* 移动端搜索框优化 */
            .search-box input {
                font-size: 16px; /* 防止iOS缩放 */
                padding: 14px 18px;
            }

            /* 移动端状态卡片优化 */
            .status-group {
                gap: 10px;
            }

            .status-card {
                padding: 12px 14px;
            }

            .status-card .label {
                font-size: 11px;
            }

            .status-card .value {
                font-size: 12px;
            }

            /* 移动端按钮优化 */
            .btn {
                padding: 14px 16px;
                font-size: 15px;
            }

            /* 移动端结果区域 */
            .result-area {
                margin-top: 16px;
                padding-top: 16px;
            }

            .result-item {
                padding: 12px 14px;
            }

            /* 移动端POI列表 */
            .poi-list {
                max-height: 150px;
            }

            .poi-item {
                padding: 12px 14px;
            }

            /* 移动端天气卡片 */
            .weather-card {
                padding: 14px 16px;
                margin-bottom: 16px;
            }

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

            /* 移动端加载动画 */
            .loading-card {
                padding: 24px 32px;
                max-width: 280px;
            }

            .loading-title {
                font-size: 16px;
            }

            .loading-step {
                font-size: 13px;
                padding: 8px 0;
            }

            /* 移动端提示框 */
            .error-toast {
                top: 16px;
                padding: 14px 20px;
                font-size: 14px;
                max-width: 90vw;
            }

            /* 移动端筛选标题 */
            .filter-title {
                font-size: 12px;
                margin: 14px 0 10px 0;
            }

            /* 移动端时间滑块 */
            .time-slider-group {
                padding: 12px 0;
            }

            /* 移动端tips */
            .tips-box {
                font-size: 12px;
                padding: 12px;
            }
        }

        /* 超小屏幕适配 */
        @media (max-width: 375px) {
            .control-panel {
                max-height: 60vh;
            }

            .panel-header h2 {
                font-size: 16px;
            }

            .poi-type-btn {
                padding: 6px 10px;
                font-size: 12px;
            }

            .status-card .value {
                font-size: 11px;
            }
        }

        /* 横屏模式适配 */
        @media (max-height: 500px) and (orientation: landscape) {
            .control-panel {
                max-height: 75vh;
                width: 50%;
                right: 0;
                left: auto;
                top: 10px;
                bottom: auto;
                border-radius: 16px;
            }
        }

        /* iPhone X+ 安全区域适配 */
        @supports (padding-bottom: env(safe-area-inset-bottom)) {
            .control-panel {
                padding-bottom: env(safe-area-inset-bottom);
            }
        }