.brand-card {
    background-color: #ffffff;
    margin: -30px 15px 15px;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 10;
}

.brand-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.brand-logo {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(90deg, #4caf50, #1e88e5);
    background: linear-gradient(90deg, #a7a700, #1e88e5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-logo span {
    color: #e57600;
    font-size: 16px;
    font-weight: 600;
    margin-left: 2px;
    letter-spacing: 2px;
}

.brand-desc {
    font-size: 12px;
    color: #565656;
    line-height: 1.6;
    text-align: right;
    max-width: 200px;
}

.nav-text {
    font-size: 12px;
    color: #333;
}

.category-tabs {
    background-color: #ffffff;
    margin: 0 15px 15px;
    border-radius: 12px;
    padding: 2px;
    display: flex;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.category-tab {
    flex: 1;
    text-align: center;
    padding: 12px 0;
    font-size: 14px;
    color: #666;
    border-radius: 10px;
    transition: all 0.3s;
}

.category-tab.active {
    background-color: #1e88e5;
    color: #ffffff;
    font-weight: 500;
}

.section-title {
    padding: 0 15px 12px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 15px;
    margin-bottom: 20px;
}

.product-card-link {
    text-decoration: none;
    display: block;
}

.product-card {
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-card-link:hover .product-card,
.product-card-link:active .product-card {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    width: 60px;
    height: 20px;
    background: linear-gradient(135deg, rgba(30, 136, 229, 0.8) 0%, rgba(30, 136, 229, 0.6) 100%);
    border-radius: 4px;
}

.product-image::after {
    content: 'GOLD·KEY';
    position: absolute;
    top: 13px;
    left: 15px;
    font-size: 10px;
    color: white;
    font-weight: 600;
}

.product-image .img-placeholder {
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.product-image .img-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 12px;
}

.product-title {
    font-size: 13px;
    color: #333;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-code {
    font-size: 11px;
    color: #999;
    margin-top: 4px;
}

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 768px;
    width: 100%;
    background-color: #ffffff;
    display: flex;
    justify-content: space-around;
    padding: 8px 0 12px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    z-index: 100;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

.bottom-nav-item.active .nav-icon-bottom {
    fill: #1e88e5;
}

.bottom-nav-item.active .nav-text-bottom {
    color: #1e88e5;
}

.bottom-nav-item:nth-child(1).active .nav-icon-bottom {
    fill: #4caf50;
}

.bottom-nav-item:nth-child(1).active .nav-text-bottom {
    color: #4caf50;
}

.bottom-nav-item:nth-child(3).active .nav-icon-bottom {
    fill: url(#gradient-icon);
}

.bottom-nav-item:nth-child(3).active .nav-text-bottom {
    background: linear-gradient(90deg, #ff6b6b, #feca57, #48dbfb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bottom-nav-item:nth-child(4).active .nav-icon-bottom {
    fill: #9c27b0;
}

.bottom-nav-item:nth-child(4).active .nav-text-bottom {
    color: #9c27b0;
}

.nav-icon-bottom {
    width: 24px;
    height: 24px;
    fill: #999;
    transition: fill 0.3s;
}

.nav-text-bottom {
    font-size: 11px;
    color: #999;
    transition: color 0.3s;
}

.loading-more {
    text-align: center;
    padding: 20px;
    color: #999;
    font-size: 14px;
}

.loading-more .spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #1e88e5;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
    vertical-align: middle;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.no-more-data {
    text-align: center;
    padding: 20px;
    color: #999;
    font-size: 14px;
}


/*分页*/