/* 订单结算页面样式 */
.checkout-section {
    margin-bottom: 1.5rem;
}

/* 地址选择区域美化 */
.address-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.address-card {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.address-card:hover {
    border-color: #007bff;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.15);
    transform: translateY(-2px);
}

.address-card.selected {
    border-color: #007bff;
    background: linear-gradient(135deg, #e7f3ff 0%, #cce7ff 100%);
    box-shadow: 0 4px 16px rgba(0, 123, 255, 0.2);
    transform: translateY(-2px);
}

.address-card.selected::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #007bff, #0056b3);
}

.address-card-body {
    padding: 1.25rem;
    position: relative;
}

.address-header {
    display: flex;
    justify-content: between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.address-receiver {
    flex: 1;
}

.receiver-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
}

.receiver-name i {
    margin-right: 0.5rem;
    color: #007bff;
}

.receiver-phone {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 0;
    display: flex;
    align-items: center;
}

.receiver-phone i {
    margin-right: 0.5rem;
    color: #28a745;
}

.address-content {
    background: rgba(255,255,255,0.7);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 0.75rem;
    border-left: 3px solid #e9ecef;
    transition: all 0.3s ease;
}

.address-card.selected .address-content {
    border-left-color: #007bff;
    background: rgba(255,255,255,0.9);
}

.address-text {
    color: #495057;
    margin-bottom: 0;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
}

.address-text i {
    margin-right: 0.5rem;
    margin-top: 0.2rem;
    color: #6c757d;
    flex-shrink: 0;
}

.address-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.default-badge {
    background: linear-gradient(45deg, #ff6b6b, #ee5a52);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(255,107,107,0.3);
}

.default-badge i {
    margin-right: 0.25rem;
}

/* 自定义单选按钮样式 */
.custom-radio {
    position: relative;
    width: 24px;
    height: 24px;
}

.custom-radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: pointer;
}

.custom-radio .radio-mark {
    position: absolute;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    background: #fff;
    border: 2px solid #ddd;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-radio input[type="radio"]:checked + .radio-mark {
    border-color: #007bff;
    background: #007bff;
    box-shadow: 0 0 0 3px rgba(0,123,255,0.2);
}

.custom-radio .radio-mark::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
    opacity: 0;
    transform: scale(0);
    transition: all 0.2s ease;
}

.custom-radio input[type="radio"]:checked + .radio-mark::after {
    opacity: 1;
    transform: scale(1);
}

/* 新增地址按钮美化 */
.add-address-btn {
    background: linear-gradient(45deg, #28a745, #20c997);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(40,167,69,0.3);
}

.add-address-btn:hover {
    background: linear-gradient(45deg, #218838, #1e7e34);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(40,167,69,0.4);
    color: white;
}

.add-address-btn i {
    margin-right: 0.5rem;
}

/* 卡片头部美化 */
.checkout-section .card-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 1.25rem;
}

.checkout-section .card-header h5 {
    margin-bottom: 0;
    color: #495057;
    font-weight: 600;
}

.checkout-section .card-header i {
    margin-right: 0.5rem;
    color: #007bff;
    font-size: 1.1rem;
}

/* 其他原有样式保持不变 */
.product-item {
    padding: 1rem 0;
    border-bottom: 1px solid #e9ecef;
}

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

.order-summary {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 0.5rem;
}

.price-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.price-row.total-price {
    font-size: 1.1rem;
    font-weight: bold;
    color: #dc3545;
}

.form-check {
    padding: 0.75rem;
    border: 1px solid #e9ecef;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.form-check:hover {
    border-color: #007bff;
    background-color: #f8f9fa;
}

.form-check-input:checked + .form-check-label {
    color: #007bff;
}

/* 支付方式特殊样式 */
.form-check input[type="radio"][value="simulate"]:checked + label {
    color: #ffc107;
}

.form-check input[type="radio"][value="simulate"]:checked + label i {
    color: #ffc107 !important;
}

/* 模拟支付说明样式 */
.alert-warning {
    border-left: 4px solid #ffc107;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .address-container {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .checkout-section .col-md-4,
    .checkout-section .col-md-3 {
        margin-bottom: 1rem;
    }
    
    .product-item .col-md-2,
    .product-item .col-md-6 {
        margin-bottom: 0.5rem;
    }
    
    .address-card-body {
        padding: 1rem;
    }
    
    .receiver-name {
        font-size: 1rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert {
    animation: fadeIn 0.3s ease;
}

.address-card {
    animation: slideIn 0.4s ease;
}

.address-card:nth-child(2) {
    animation-delay: 0.1s;
}

.address-card:nth-child(3) {
    animation-delay: 0.2s;
}

/* 按钮样式 */
.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

/* 表单标签样式 */
.form-check-label {
    cursor: pointer;
    width: 100%;
}

.form-check-label strong {
    display: block;
    margin-bottom: 0.25rem;
}

.form-check-label small {
    color: #6c757d;
}

/* 商品图片样式 */
.product-item img {
    max-height: 80px;
    object-fit: cover;
}

/* 价格显示样式 */
.fw-bold {
    color: #dc3545;
}

/* 面包屑导航样式 */
.breadcrumb {
    background: transparent;
    padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    color: #6c757d;
}

/* 加载状态动画 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(0, 123, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0);
    }
}

.address-card.loading {
    animation: pulse 1.5s infinite;
}