/**
 * 统一支付界面样式
 * Material Design风格的支付组件
 */

/* 基础变量定义 */
:root {
    --primary-color: #1976D2;
    --primary-dark: #1565C0;
    --primary-light: #42A5F5;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --error-color: #F44336;
    --info-color: #2196F3;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-disabled: #BDBDBD;
    --background-primary: #FFFFFF;
    --background-secondary: #FAFAFA;
    --border-color: #E0E0E0;
    --shadow-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
    --border-radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* 支付弹窗遮罩 */
.payment-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.payment-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 支付弹窗主体 */
.payment-modal {
    background: var(--background-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.7) translateY(-50px);
    transition: var(--transition);
}

.payment-modal-overlay.active .payment-modal {
    transform: scale(1) translateY(0);
}

/* 弹窗头部 */
.payment-modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 24px;
    position: relative;
}

.payment-modal-title {
    font-size: 24px;
    font-weight: 500;
    margin: 0 0 8px 0;
}

.payment-modal-subtitle {
    font-size: 16px;
    opacity: 0.9;
    margin: 0;
}

.payment-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: var(--transition);
}

.payment-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* 弹窗内容区域 */
.payment-modal-body {
    padding: 0;
    max-height: calc(90vh - 200px);
    overflow-y: auto;
}

/* 支付进度指示器 */
.payment-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--background-secondary);
    border-bottom: 1px solid var(--border-color);
}

.payment-step {
    display: flex;
    align-items: center;
    color: var(--text-disabled);
    font-size: 14px;
    font-weight: 500;
}

.payment-step.active {
    color: var(--primary-color);
}

.payment-step.completed {
    color: var(--success-color);
}

.payment-step-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--text-disabled);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    font-size: 16px;
    transition: var(--transition);
}

.payment-step.active .payment-step-icon {
    background: var(--primary-color);
}

.payment-step.completed .payment-step-icon {
    background: var(--success-color);
}

.payment-step-connector {
    width: 40px;
    height: 2px;
    background: var(--border-color);
    margin: 0 16px;
}

.payment-step.completed + .payment-step .payment-step-connector {
    background: var(--success-color);
}

/* 订单信息卡片 */
.payment-order-info {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.payment-order-card {
    background: var(--background-secondary);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
}

.payment-order-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.payment-order-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.payment-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

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

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

.payment-detail-value {
    color: var(--text-primary);
    font-weight: 500;
}

.payment-amount {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
}

/* 支付方式选择 */
.payment-methods {
    padding: 24px;
}

.payment-methods-title {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0 0 20px 0;
}

.payment-method-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.payment-method-card {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    background: var(--background-primary);
    position: relative;
}

.payment-method-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-1);
}

.payment-method-card.selected {
    border-color: var(--primary-color);
    background: rgba(25, 118, 210, 0.04);
}

.payment-method-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--background-secondary);
}

.payment-method-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.payment-method-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius);
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: 16px;
}

.payment-method-name {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.payment-method-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

.payment-method-status {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: white;
    transition: var(--transition);
}

.payment-method-card.selected .payment-method-status {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.payment-method-card.selected .payment-method-status::after {
    content: '✓';
    color: white;
    font-size: 12px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 支付配置错误提示 */
.payment-config-error {
    background: #FFEBEE;
    border: 1px solid #FFCDD2;
    border-radius: var(--border-radius);
    padding: 16px;
    margin: 16px 24px;
}

.payment-config-error-title {
    color: var(--error-color);
    font-weight: 500;
    margin: 0 0 8px 0;
    display: flex;
    align-items: center;
}

.payment-config-error-title::before {
    content: '⚠';
    margin-right: 8px;
}

.payment-config-error-list {
    margin: 0;
    padding-left: 20px;
    color: var(--text-secondary);
}

.payment-config-error-list li {
    margin-bottom: 4px;
}

/* 支付操作按钮 */
.payment-modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.payment-btn {
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
}

.payment-btn-primary {
    background: var(--primary-color);
    color: white;
}

.payment-btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: var(--shadow-1);
}

.payment-btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.payment-btn-secondary:hover:not(:disabled) {
    background: var(--background-secondary);
    border-color: var(--text-secondary);
}

.payment-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.payment-btn-loading {
    position: relative;
    color: transparent;
}

.payment-btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: payment-spin 1s linear infinite;
}

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

/* 支付状态指示器 */
.payment-status-indicator {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment-status-pending {
    background: #FFF3E0;
    color: #E65100;
}

.payment-status-processing {
    background: #E3F2FD;
    color: #0D47A1;
}

.payment-status-paid {
    background: #E8F5E8;
    color: #2E7D32;
}

.payment-status-failed {
    background: #FFEBEE;
    color: #C62828;
}

/* 扫码支付区域 */
.qr-payment-section {
    padding: 24px;
    text-align: center;
}

.qr-payment-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.qr-payment-tab {
    padding: 12px 24px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.qr-payment-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.qr-code-container {
    display: inline-block;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-1);
    margin-bottom: 16px;
}

.qr-code-image {
    width: 200px;
    height: 200px;
    border-radius: var(--border-radius);
}

.qr-payment-instructions {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    max-width: 300px;
    margin: 0 auto;
}

/* 支付结果页面 */
.payment-result {
    text-align: center;
    padding: 40px 24px;
}

.payment-result-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: white;
}

.payment-result-success .payment-result-icon {
    background: var(--success-color);
}

.payment-result-error .payment-result-icon {
    background: var(--error-color);
}

.payment-result-title {
    font-size: 24px;
    font-weight: 500;
    margin: 0 0 12px 0;
}

.payment-result-success .payment-result-title {
    color: var(--success-color);
}

.payment-result-error .payment-result-title {
    color: var(--error-color);
}

.payment-result-message {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.5;
    margin: 0 0 32px 0;
}

.payment-result-details {
    background: var(--background-secondary);
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 24px 0;
    text-align: left;
}

.payment-result-detail-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.payment-result-detail-item:last-child {
    border-bottom: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .payment-modal {
        width: 95%;
        margin: 20px;
    }
    
    .payment-modal-header {
        padding: 20px;
    }
    
    .payment-modal-title {
        font-size: 20px;
    }
    
    .payment-order-details {
        grid-template-columns: 1fr;
    }
    
    .payment-method-grid {
        grid-template-columns: 1fr;
    }
    
    .payment-modal-footer {
        flex-direction: column;
        gap: 12px;
    }
    
    .payment-btn {
        width: 100%;
    }
    
    .qr-code-image {
        width: 160px;
        height: 160px;
    }
}

@media (max-width: 480px) {
    .payment-modal {
        width: 100%;
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
    
    .payment-progress {
        padding: 16px;
    }
    
    .payment-step {
        font-size: 12px;
    }
    
    .payment-step-icon {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    
    .payment-step-connector {
        width: 20px;
        margin: 0 8px;
    }
}

/* 加载动画 */
.payment-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.payment-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: payment-spin 1s linear infinite;
    margin-right: 16px;
}

/* 工具提示 */
.payment-tooltip {
    position: relative;
    display: inline-block;
    cursor: help;
}

.payment-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.payment-tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 辅助类 */
.payment-text-center { text-align: center; }
.payment-text-left { text-align: left; }
.payment-text-right { text-align: right; }
.payment-mb-0 { margin-bottom: 0; }
.payment-mb-1 { margin-bottom: 8px; }
.payment-mb-2 { margin-bottom: 16px; }
.payment-mb-3 { margin-bottom: 24px; }
.payment-mt-0 { margin-top: 0; }
.payment-mt-1 { margin-top: 8px; }
.payment-mt-2 { margin-top: 16px; }
.payment-mt-3 { margin-top: 24px; }