/* ═══════════════════════════════════════
   base.css - Root variables, body, navigation, layout
   Lines: 700
   ═══════════════════════════════════════ */

        :root {
            --bg-dark: #0a0a0a;
            --bg-glass: rgba(255, 255, 255, 0.05);
            --bg-glass-hover: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(255, 255, 255, 0.1);
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.7);
            --text-muted: rgba(255, 255, 255, 0.4);
            --accent: #ffffff;
            --success: #00ff88;
            --danger: #ff4444;
            --warning: #ffaa00;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', sans-serif;
            background: var(--bg-dark);
            min-height: 100vh;
            color: var(--text-primary);
            padding: 0;
            padding-bottom: env(safe-area-inset-bottom);
        }
        
        .container {
            max-width: 500px;
            margin: 0 auto;
            padding: 20px 16px;
            padding-top: max(20px, env(safe-area-inset-top));
        }
        
        h1 {
            color: var(--text-primary);
            margin-bottom: 24px;
            text-align: center;
            font-size: 20px;
            font-weight: 600;
            letter-spacing: -0.5px;
        }
        
        .main-title-date {
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 400;
            margin-left: 8px;
        }
        
        .market-status {
            font-size: 11px;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 10px;
            margin-left: 8px;
        }
        
        .market-status.open {
            color: var(--success);
            background: rgba(0, 255, 136, 0.15);
        }
        
        .market-status.closed {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.08);
        }
        
        /* 玻璃卡片基础样式 */
        .glass {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: none;
            border-radius: 16px;
        }
        
        /* 导航标签 */
        .nav-tabs {
            display: flex;
            gap: 6px;
            margin-bottom: 20px;
            padding: 4px;
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(20px);
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .nav-tab {
            flex: 1;
            padding: 14px 20px;
            background: transparent;
            border: none;
            border-radius: 10px;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        
        /* 紧凑导航样式 */
        .nav-tabs-compact {
            margin-bottom: 12px;
        }
        
        .nav-tabs-compact .nav-tab {
            padding: 10px 12px;
            font-size: 13px;
        }
        
        .nav-tab:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
        }
        
        .nav-tab.active {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 240, 240, 0.9));
            color: var(--bg-dark);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        
        .nav-tab.active::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
        }
        
        /* 子导航标签 */
        .sub-tabs {
            display: flex;
            gap: 4px;
            margin-bottom: 16px;
            padding: 3px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        
        .sub-tab {
            flex: 1;
            padding: 10px 14px;
            background: transparent;
            border: none;
            border-radius: 8px;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        
        .sub-tab:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }
        
        .sub-tab.active {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
        }
        
        .sub-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 18px;
            height: 18px;
            padding: 0 5px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 9px;
            font-size: 11px;
            font-weight: 600;
        }
        
        .sub-tab.active .sub-badge {
            background: rgba(255, 255, 255, 0.25);
        }
        
        .add-watch-btn {
            width: 36px;
            height: 36px;
            margin-left: auto;
            background: rgba(255, 255, 255, 0.08);
            border: 1px dashed rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 18px;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .add-watch-btn:hover {
            background: rgba(255, 255, 255, 0.15);
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.3);
        }
        
        .add-watch-input {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
            padding: 12px;
            background: var(--bg-glass);
            border: none;
            border-radius: 10px;
        }
        
        .add-watch-input input {
            flex: 1;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            color: var(--text-primary);
            font-size: 14px;
        }
        
        .add-watch-input input::placeholder {
            color: var(--text-secondary);
        }
        
        .add-watch-input button {
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 6px;
            color: var(--text-primary);
            font-size: 13px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        
        .add-watch-input button:hover:not(:disabled) {
            background: rgba(255, 255, 255, 0.2);
        }
        
        .add-watch-input button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        
        /* 输入区域 */
        .input-section {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            border: none;
            padding: 20px;
            border-radius: 16px;
            margin-bottom: 16px;
        }
        
        .input-group {
            margin-bottom: 16px;
        }
        
        .input-group:last-child {
            margin-bottom: 0;
        }
        
        .input-group label {
            display: block;
            color: var(--text-muted);
            margin-bottom: 8px;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .input-group input {
            width: 100%;
            padding: 14px 16px;
            border: none;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.03);
            font-size: 16px;
            color: var(--text-primary);
            transition: all 0.2s;
        }
        
        .input-group input:focus {
            outline: none;
            border-color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        
        .input-group input::placeholder {
            color: var(--text-muted);
        }
        
        .analyze-btn {
            width: 100%;
            height: 44px;
            padding: 0 16px;
            background: var(--text-primary);
            color: var(--bg-dark);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s;
            margin-top: 8px;
        }
        
        .analyze-btn:active {
            transform: scale(0.98);
            opacity: 0.9;
        }
        
        .analyze-btn:disabled {
            background: var(--text-muted);
            cursor: not-allowed;
        }
        
        /* 扫描控制区 */
        .scan-control {
            margin-bottom: 12px;
            display: flex;
            gap: 10px;
        }
        
        .scan-source-select {
            flex: 0 0 150px;
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 12px;
            color: var(--text-primary);
            font-size: 14px;
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }
        
        .scan-source-select:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.1);
        }
        
        .scan-source-select option {
            background: #1a1a2e;
            color: var(--text-primary);
            padding: 10px;
        }
        
        .scan-btn {
            flex: 1;
            padding: 14px 28px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        
        .scan-btn:hover:not(:disabled) {
            background: rgba(255, 255, 255, 0.15);
        }
        
        .scan-btn:active:not(:disabled) {
            transform: scale(0.98);
        }
        
        .scan-btn:disabled {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            cursor: not-allowed;
        }
        
        .scan-status-bar {
            text-align: center;
            color: var(--text-secondary);
            font-size: 13px;
            padding: 10px;
            margin-bottom: 12px;
            background: var(--bg-glass);
            border-radius: 8px;
            animation: pulse 1.5s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }
        
        /* 扫描结果 */
        .scan-results {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            border: none;
            border-radius: 12px;
            padding: 12px;
            margin-bottom: 16px;
            overflow: hidden;
        }
        
        .scan-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            overflow: hidden;
        }
        
        .scan-item:last-child {
            border-bottom: none;
        }
        
        .scan-item .rank {
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-secondary);
            flex-shrink: 0;
        }
        
        .scan-item:nth-child(-n+3) .rank {
            background: rgba(0, 255, 136, 0.2);
            color: var(--success);
        }
        
        .scan-stock-info {
            display: flex;
            gap: 8px;
            cursor: pointer;
            padding: 2px 6px;
            border-radius: 4px;
            transition: background-color 0.2s;
        }
        
        .scan-stock-info:hover {
            background: rgba(0, 255, 136, 0.15);
        }
        
        .scan-code {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 13px;
            min-width: 55px;
            flex-shrink: 0;
        }
        
        .scan-name {
            color: var(--text-secondary);
            font-size: 12px;
            flex: 1;
            min-width: 0;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        .scan-price {
            color: var(--text-primary);
            font-size: 13px;
            flex-shrink: 0;
        }
        
        .scan-rate {
            padding: 3px 6px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
            min-width: 36px;
            text-align: center;
            flex-shrink: 0;
        }
        
        .scan-rate.buy {
            background: rgba(0, 255, 136, 0.15);
            color: var(--success);
        }
        
        .scan-add-btn {
            width: 24px;
            height: 24px;
            padding: 0;
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 300;
            cursor: pointer;
            transition: all 0.2s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .scan-add-btn:hover {
            color: var(--success);
            transform: scale(1.2);
        }
        
        .scan-add-btn:active {
            transform: scale(0.95);
        }
        
        .scan-add-btn:disabled {
            color: var(--text-muted);
            cursor: default;
            transform: none;
        }
        
        /* 历史记录下拉 */
        .history-dropdown {
            position: absolute;
            top: calc(100% + 4px);
            left: 0;
            right: 0;
            background: #1a1a1a;
            border: none;
            border-radius: 12px;
            z-index: 100;
            max-height: 200px;
            overflow-y: auto;
        }
        
        .history-item {
            padding: 14px 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            border-bottom: 1px solid var(--border-glass);
            transition: background 0.2s;
        }
        
        .history-item:last-child {
            border-bottom: none;
        }
        
        .history-item:active {
            background: var(--bg-glass-hover);
        }
        
        .history-item .code {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 14px;
        }
        
        .history-item .name {
            flex: 1;
            color: var(--text-secondary);
            font-size: 13px;
        }
        
        .history-item .remove {
            color: var(--text-muted);
            font-size: 18px;
            padding: 4px 8px;
        }
        
        /* 股票信息条 */
        .stock-info-bar {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            padding: 16px;
            border-radius: 12px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: none;
        }
        
        .stock-info-bar .stock-code {
            background: var(--text-primary);
            color: var(--bg-dark);
            padding: 6px 12px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
        }
        
        .stock-info-bar .stock-name {
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 500;
        }
        
        .loading {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
            font-size: 14px;
        }
        
        .error {
            background: rgba(255, 68, 68, 0.1);
            border: 1px solid rgba(255, 68, 68, 0.2);
            color: var(--danger);
            padding: 16px;
            border-radius: 12px;
            margin-bottom: 16px;
            font-size: 14px;
        }
        
        /* 信号卡片 */
        .recommendation-card {
            background: var(--bg-glass);
            backdrop-filter: blur(20px);
            border: none;
            border-radius: 20px;
            padding: 24px;
            margin-bottom: 16px;
        }
        
        .recommendation-card.buy {
            border-color: rgba(0, 255, 136, 0.3);
            background: rgba(0, 255, 136, 0.05);
        }
        
        .recommendation-card.sell {
            border-color: rgba(255, 68, 68, 0.3);
            background: rgba(255, 68, 68, 0.05);
        }
        
        .signal-icon {
            font-size: 40px;
            margin-bottom: 12px;
        }
        
        .signal-text {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        
        .recommendation-card.buy .signal-text { color: var(--success); }
        .recommendation-card.sell .signal-text { color: var(--danger); }
        
        .signal-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        .signal-details {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-top: 20px;
        }
        
        .signal-detail-item {
            background: rgba(255, 255, 255, 0.03);
            padding: 14px;
            border-radius: 12px;
            border: none;
        }
        
        .signal-detail-item h4 {
            font-size: 11px;
            color: var(--text-muted);
            margin-bottom: 6px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            font-weight: 500;
        }
        
        .signal-detail-item .value {
            font-size: 18px;
            font-weight: 600;
        }