/* Header LOGO优化 */
.header-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
    margin-top: 18px;
    margin-bottom: 8px;
}
.header-row .logo-circle {
    width: 160px;
    height: 160px;
    background: linear-gradient(135deg, #8f94fb 0%, #4e54c8 100%);
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(78,84,200,0.16), 0 1.5px 8px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid #fff;
    animation: logo-pop 1.2s cubic-bezier(.68,-0.55,.27,1.55);
}
.header-row .logo-img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
}
@keyframes logo-pop {
    0% { transform: scale(0.7); opacity: 0; }
    60% { transform: scale(1.15); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}
body {
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;
    background: #f8f8f8;
    color: #222;
}
header {
    background: linear-gradient(90deg, #4e54c8, #8f94fb);
    color: #fff;
    padding: 40px 0 20px 0;
    text-align: center;
    position: relative;
}
.lang-switch {
    position: absolute;
    top: 20px;
    right: 30px;
}
.lang-switch button {
    background: #fff;
    color: #4e54c8;
    border: none;
    margin-left: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s;
}
.lang-switch button.active {
    background: #4e54c8;
    color: #fff;
}
main {
    max-width:80%;
    margin: 30px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    padding: 30px;
}
section {
    margin-bottom: 40px;
}
.product-list {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
}
.product {
    background: #f0f0f0;
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    width: 20%;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}
.product img {
    width: 100%;
    border-radius: 6px;
    margin-bottom: 10px;
}
.product-name {
    font-weight: bold;
    font-size: 1.05em;
}
footer {
    text-align: center;
    padding: 18px 0;
    background: #4e54c8;
    color: #fff;
    font-size: 0.95em;
    border-radius: 0 0 12px 12px;
    margin-top: 30px;
}
@media (max-width: 600px) {
    main {
        padding: 12px;
    }
    .product-list {
        flex-direction: column;
        gap: 10px;
    }
    .product {
        width: 100%;
    }
}