* {
    box-sizing: border-box;
}
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
    margin: 0;
    padding: 24px 16px;
    background-color: #f0f0f0;
    color: #1f2937;
    padding-top: 80px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    padding: 28px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.error-message {
    background-color: #fef2f2;
    color: #dc2626;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 24px;
}
.product-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 16px;
    background-color: #f9fafb;
    transition: all 0.24s ease;
}
.product-item:hover {
    box-shadow: 0 6px 18px rgba(0,0,0,0.1);
    border-color: #cbd5e1;
    background-color: #ffffff;
}
.rank-tag {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
}
.rank-top3 {
    background-color: #2563eb;
    color: #fff;
}
.rank-normal {
    background-color: #e5e7eb;
    color: #374151;
}
.product-body {
    flex: 1;
}
.product-name {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
}
.product-name a {
    color: #222;
    text-decoration: none;
}
.product-name a:hover {
    text-decoration: underline;
}
.offline-tip {
    font-size: 13px;
    color: #dc2626;
    margin-top: 6px;
}
.no-data {
    text-align: center;
    padding: 60px 20px;
    color: #6b7280;
}
.footer-nav {
    margin-top: 30px;
    text-align: center;
}
.footer-nav a {
    color: #2563eb;
    text-decoration: none;
}
.footer-nav a:hover {
    text-decoration: underline;
}

@media (max-width: 640px) {
    body {
        padding-top: 70px;
        padding: 70px 12px 20px;
    }
    .container {
        padding: 18px 14px;
    }
    .product-item {
        padding: 14px;
    }
}

.disclaimer {
    margin-top: 30px;
    padding-top:15px;
    border-top:1px solid #eee;
    font-size:13px;
    color:#666;
    line-height:1.6;
    text-align:center;
}