:root {
    --primary-color: #4ECDC4;
    --accent-color: #FF6B6B;
    --gold-color: #FFA500;
    --success-color: #00FF00;
    --danger-color: #FF4444;
    --bg-dark: #0d0d0d;
    --bg-card: #1a1a2e;
    --bg-card-hover: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --border-color: #2d2d2d;
    --card-shadow: 0 2px 8px rgba(0,0,0,0.3);
    --card-radius: 12px;
    --card-padding: 16px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 80px;
}

.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    background: var(--bg-card);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
    z-index: 100;
    padding: 8px 16px;
}

.tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-item.active {
    background: rgba(46, 134, 171, 0.1);
    color: var(--primary-color);
}

.tab-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.tab-text {
    font-size: 12px;
    font-weight: 500;
}

.main-content {
    padding: 16px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.section {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    margin-bottom: 16px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.indices-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.index-card {
    background: var(--bg-card-hover);
    border-radius: 8px;
    padding: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}

.index-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.index-name {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.index-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.index-change {
    font-size: 14px;
    font-weight: 600;
}

.index-change.up {
    color: var(--danger-color);
}

.index-change.down {
    color: var(--success-color);
}

.index-kline {
    height: 40px;
    margin-top: 8px;
}

.sectors-tabs {
    display: flex;
    margin-bottom: 12px;
}

.sector-tab {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-card-hover);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.sector-tab.active {
    background: var(--primary-color);
    color: var(--bg-dark);
}

.sectors-container {
    max-height: 300px;
    overflow-y: auto;
}

.sector-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.sector-item:last-child {
    border-bottom: none;
}

.sector-name {
    font-size: 14px;
    color: var(--text-primary);
}

.sector-change {
    font-size: 14px;
    font-weight: 600;
}

.sector-change.up {
    color: var(--danger-color);
}

.sector-change.down {
    color: var(--success-color);
}

.search-box-wrapper {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

#stock-search {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.search-btn {
    padding: 12px 20px;
    background: var(--primary-color);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}

.search-results {
    max-height: 200px;
    overflow-y: auto;
}

.search-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.2s;
}

.search-item:hover {
    background: var(--bg-card-hover);
}

.search-item .code {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
}

.search-item .name {
    font-size: 14px;
    color: var(--text-primary);
}

.stock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 16px;
    background: var(--bg-card-hover);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stock-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.stock-info .code {
    font-size: 12px;
    color: var(--text-secondary);
}

.stock-price {
    text-align: right;
}

.stock-price .price {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stock-price .change {
    font-size: 14px;
    font-weight: 600;
    margin-top: 4px;
}

.stock-price .change.up {
    color: var(--danger-color);
}

.stock-price .change.down {
    color: var(--success-color);
}

.chart-container {
    height: 300px;
    margin-bottom: 16px;
}

.stock-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.metric-item {
    padding: 12px;
    background: var(--bg-card-hover);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.metric-item .label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.metric-item .value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-back {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 16px;
}

.preview-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    box-shadow: var(--card-shadow);
    margin-top: 16px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
}

.preview-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.preview-header {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.preview-icon {
    font-size: 20px;
    margin-right: 8px;
}

.preview-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.preview-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.preview-stocks {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.preview-stock {
    flex: 1;
    text-align: center;
    padding: 8px;
    background: var(--bg-card-hover);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.preview-stock .code {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.preview-stock .name {
    font-size: 12px;
    color: var(--text-primary);
}

.preview-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent-color);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.value-section {
    text-align: center;
    padding: 32px 16px;
}

.value-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.value-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.value-tagline {
    font-size: 14px;
    color: var(--text-muted);
}

.market-trend-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 16px;
    margin-top: 20px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.trend-icon {
    font-size: 28px;
}

.trend-content {
    flex: 1;
}

.trend-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.trend-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.trend-value.bull {
    color: var(--danger-color);
}

.trend-value.bear {
    color: var(--success-color);
}

.trend-value.neutral {
    color: var(--text-muted);
}

.trend-change {
    font-size: 16px;
    font-weight: 600;
}

.trend-change.up {
    color: var(--danger-color);
}

.trend-change.down {
    color: var(--success-color);
}

.livermore-quote {
    margin-top: 16px;
    padding: 16px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 12px;
    text-align: left;
}

.livermore-quote p {
    font-size: 14px;
    color: #e94560;
    font-style: italic;
    margin: 0;
    line-height: 1.6;
}

.market-comment {
    margin-top: 12px;
    padding: 12px 16px;
    background: var(--bg-card-hover);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    border: 1px solid var(--border-color);
}

.preview-section {
    padding: 0 16px;
}

.stock-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    margin-bottom: 12px;
    box-shadow: var(--card-shadow);
    position: relative;
    border: 1px solid var(--border-color);
}

.stock-card.blur {
    filter: blur(5px);
}

.stock-rank {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.stock-rank.top3 {
    background: var(--gold-color);
}

.stock-content {
    padding-left: 48px;
}

.stock-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.stock-code-name {
    display: flex;
    gap: 8px;
}

.stock-code {
    font-size: 14px;
    color: var(--primary-color);
}

.stock-name {
    font-size: 14px;
    color: var(--text-primary);
}

.confidence {
    display: flex;
    align-items: center;
    gap: 4px;
}

.confidence-stars {
    font-size: 14px;
}

.confidence-score {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
}

.stock-price-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.current-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.change-pct {
    font-size: 14px;
    font-weight: 600;
}

.change-pct.up {
    color: var(--danger-color);
}

.change-pct.down {
    color: var(--success-color);
}

.stock-reason {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.stock-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
}

.stock-finance {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
    flex-wrap: wrap;
}

.stock-finance span {
    background: var(--bg-card-hover);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.stock-ma {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
    flex-wrap: wrap;
}

.stock-ma span {
    background: var(--bg-card-hover);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.lock-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg-card-hover);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    border: 1px solid var(--border-color);
}

.trust-section {
    padding: 0 16px;
    margin-top: 24px;
}

.trust-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    border: 1px solid var(--border-color);
}

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

.trust-content .trust-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.trust-content .trust-data {
    font-size: 14px;
    color: var(--text-secondary);
}

.urgency-section {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 24px 16px;
}

.urgency-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.urgency-icon {
    font-size: 18px;
}

.cta-section {
    padding: 0 16px;
    text-align: center;
    margin-top: 16px;
}

.cta-btn {
    width: 100%;
    padding: 16px;
    background: var(--accent-color);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    margin-bottom: 8px;
}

.cta-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

.payment-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-radius: 20px 20px 0 0;
    padding: 24px;
    max-height: 80vh;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-card-hover);
    border-radius: 50%;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
}

.plan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.plan-item {
    background: var(--bg-card-hover);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
    position: relative;
}

.plan-item:hover {
    border-color: var(--primary-color);
}

.plan-item.recommended {
    border-color: var(--accent-color);
    background: rgba(255, 107, 107, 0.1);
}

.plan-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-muted);
    color: var(--text-primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
}

.recommended-badge {
    background: var(--accent-color);
    color: var(--bg-dark);
}

.plan-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 8px;
}

.plan-duration {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.plan-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.plan-avg-price {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.best-value-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    font-size: 10px;
    padding: 2px 10px;
    border-radius: 10px;
    font-weight: 600;
}

.qr-code-section {
    text-align: center;
}

.qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto 16px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.comfort-section {
    padding: 0 16px;
    margin-top: 16px;
}

.comfort-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    color: white;
    text-align: center;
}

.comfort-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.comfort-title {
    font-size: 24px;
    font-weight: 700;
    color: #e94560;
    margin-bottom: 8px;
}

.comfort-subtitle {
    font-size: 16px;
    color: #a0a0a0;
    margin-bottom: 16px;
}

.comfort-content {
    font-size: 14px;
    color: #d0d0d0;
    line-height: 1.8;
    text-align: left;
    margin-bottom: 20px;
}

.comfort-quote {
    padding: 16px;
    background: rgba(233, 69, 96, 0.1);
    border-radius: 8px;
    border-left: 4px solid #e94560;
    margin-bottom: 16px;
}

.comfort-quote p {
    font-size: 14px;
    color: #e94560;
    font-style: italic;
    margin: 0;
}

.comfort-suggestion {
    display: inline-block;
    padding: 12px 24px;
    background: rgba(233, 69, 96, 0.2);
    border-radius: 20px;
    font-size: 14px;
    color: #e94560;
    margin-bottom: 24px;
}

.comfort-history {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 16px;
    text-align: left;
}

.comfort-history h4 {
    font-size: 14px;
    font-weight: 600;
    color: #a0a0a0;
    margin-bottom: 12px;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.history-item:last-child {
    border-bottom: none;
}

.history-date {
    font-size: 12px;
    color: var(--text-muted);
}

.history-change {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-color);
}

.history-label {
    font-size: 12px;
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .indices-container {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .plan-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chart-container {
        height: 200px;
    }

    .urgency-section {
        flex-direction: column;
        gap: 12px;
    }

    .stock-metrics {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) {
    .app-container {
        padding-bottom: 100px;
    }

    .tab-bar {
        padding: 12px 32px;
    }

    .tab-icon {
        font-size: 28px;
    }

    .tab-text {
        font-size: 14px;
    }

    .main-content {
        padding: 24px;
    }

    .section {
        padding: 24px;
    }

    .chart-container {
        height: 350px;
    }

    .stock-metrics {
        grid-template-columns: repeat(4, 1fr);
    }
}