.lx-header {
    background-color: #ffffff;
    border-bottom: 1px solid #ededed;
    height: 70px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.lx-search-group { position: relative; width: 300px; }

.lx-search-input {
    background-color: #f6f4f4;
    border: none;
    border-radius: 8px;
    padding: 10px 15px 10px 40px;
    width: 100%;
    font-size: 14px;
    color: var(--lx-text-body);
}
.lx-search-input::placeholder { color: var(--lx-text-muted); }

.lx-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--lx-brand-primary);
    font-size: 18px;
}

.lx-header-title {
    font-weight: 700;
    font-size: 18px;
    color: var(--lx-text-body);
    text-transform: uppercase;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.lx-header-actions { display: flex; align-items: center; gap: 20px; }

.lx-header-action-btn {
    background: none;
    border: none;
    color: var(--lx-brand-primary);
    font-size: 22px;
    padding: 0;
    position: relative;
    cursor: pointer;
}
.lx-header-action-btn:hover { opacity: 0.8; }

.lx-notification-menu {
    min-width: 250px;
    padding: 15px;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,.08);
    box-shadow: 0 12px 30px rgba(0,0,0,.18);
}