/* ... Header styles keep same ... */
body {
    background-color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
.custom-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2.75rem;
    padding-top: var(--status-bar-height);
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 0.9375rem;
    padding-right: 0.9375rem;
    box-sizing: border-box;
    z-index: 100;
}
.header-placeholder {
    height: calc(2.75rem + var(--status-bar-height));
}
.back-icon {
    width: 1.25rem;
    height: 1.25rem;
}
.header-title {
    font-size: 1rem;
    font-weight: bold;
    color: #333;
}
.header-right {
    width: 1.25rem;
}
.swiper-container {
    position: relative;
    padding-bottom: 0.9375rem;
}
.level-swiper {
    height: 11.25rem;
    margin-top: 0.625rem;
}
.level-card {
    height: 10rem; 
    border-radius: 0.9375rem;
    margin: 0 0.3125rem;
    transition: transform 0.3s;
    overflow: hidden;
    position: relative;
    box-shadow: 0 0.3125rem 0.625rem rgba(0,0,0,0.1);
}
/* Gradients */
.level-card-1 { background: linear-gradient(135deg, #E0E0E0 0%, #BDBDBD 100%);
}
.level-card-2 { background: linear-gradient(135deg, #CFD8DC 0%, #B0BEC5 100%);
}
.level-card-3 { background: linear-gradient(135deg, #FFC107 0%, #FF9800 100%);
}
.level-card-4 { background: linear-gradient(135deg, #4FC3F7 0%, #039BE5 100%);
}
.card-content {
    padding: 0.9375rem;
    position: relative;
    z-index: 2;
    height: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: auto; /* Push content down */
}
.level-badge {
    border: 1px solid rgba(255,255,255,0.6);
    padding: 0.0625rem 0.375rem;
    border-radius: 0.3125rem;
    font-size: 0.75rem;
    color: #fff;
}
.current-badge {
    background-color: rgba(255,255,255,0.9);
    color: #333;
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: 0.625rem;
    font-weight: bold;
}
.level-name {
    font-size: 1.375rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 0.3125rem;
    text-shadow: 0 0.0625rem 0.125rem rgba(0,0,0,0.1);
}
.level-score {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.625rem;
}
.crown-overlay {
    position: absolute;
    bottom: -0.9375rem;
    right: -0.9375rem;
    width: 8.125rem;
    height: 8.125rem;
    opacity: 0.1;
    z-index: 1;
}

/* Dots */
.swiper-dots {
    display: flex;
    justify-content: center;
    margin-top: 0.3125rem;
}
.dot {
    width: 0.375rem;
    height: 0.375rem;
    background-color: #E0E0E0;
    border-radius: 50%;
    margin: 0 0.1875rem;
    transition: all 0.3s;
}
.dot.active {
    width: 0.75rem;
    background-color: #333;
    border-radius: 0.1875rem;
}
.benefits-title-row {
    padding: 0.625rem 0.9375rem;
    display: flex;
    align-items: baseline;
}
.benefits-title {
    font-size: 1rem;
    font-weight: bold;
    color: #333;
}
.benefits-count {
    font-size: 0.875rem;
    color: #999;
    margin-left: 0.3125rem;
}
.benefits-grid {
    display: flex;
    flex-wrap: wrap;
    padding: 0 0.625rem;
}
.benefit-item {
    width: 25%; /* 4 items per row */
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0.9375rem;
}
.benefit-icon-wrapper {
    width: 2.75rem;
    height: 2.75rem;
    background-color: #F8F8F8; /* Or very light color based on current level? Keep simple for now */
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.375rem;
}
.benefit-icon {
    width: 1.375rem;
    height: 1.375rem;
}
.benefit-icon-placeholder {
    font-size: 1.125rem;
    font-weight: bold;
    color: #FFB300;
}
.benefit-name {
    font-size: 0.6875rem; /* Smaller font as requested matching image roughly */
    color: #666;
    text-align: center;
}

/* Modal */
.popup-mask {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.5); /* Semi-transparent black */
    z-index: 999;
    display: none; /* Hidden by default */
    align-items: center;
    justify-content: center;
}
.popup-mask.show {
    display: flex; /* Show when active */
}
.popup-modal {
    width: 15rem; /* Narrower width */
    background-color: #fff;
    border-radius: 0.9375rem;
    padding: 1.5625rem 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 0.3125rem 1.25rem rgba(0,0,0,0.2); /* Drop shadow */
}
.popup-icon-wrapper {
    width: 3.75rem;
    height: 3.75rem;
    background-color: #FFF8E1; 
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.9375rem;
}
.benefit-icon-large {
    width: 1.875rem;
    height: 1.875rem;
}
.benefit-icon-placeholder-large {
    font-size: 1.5625rem;
    font-weight: bold;
    color: #FFB300;
}
.popup-title {
    font-size: 1rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 0.625rem;
}
.popup-desc {
    font-size: 0.8125rem;
    color: #666;
    text-align: center;
    line-height: 1.5;
    margin-bottom: 1.25rem;
}
.popup-btn {
    width: 80%;
    height: 2.25rem;
    line-height: 2.25rem;
    background-color: #212121;
    color: #fff;
    font-size: 0.875rem;
    border-radius: 1.125rem;
}