/* 顶部导航 */
.header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    background-color: #fff;
    border-bottom: 1px solid #e5e5e5;
    border-top: none;
    z-index: 100;
    height: 56px;
}

.header-content {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 16px;
}

.home-btn {
    position: absolute;
    left: 16px;
    background: none;
    border: none;
    color: #d4af37;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
    z-index: 10;
}

.home-btn:hover {
    background-color: #f5f5f5;
}

.back-btn {
    position: absolute;
    left: 56px; /* 为首页按钮让出空间 */
    background: none;
    border: none;
    color: #d4af37;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.back-btn:hover {
    background-color: #f5f5f5;
}

.header-title {
    font-size: 18px;
    font-weight: 600;
    color: #d4af37;
    text-align: center;
}

/* 小屏幕适配 */
@media (max-width: 360px) {
    .header-title {
        font-size: 16px;
    }
}