body {
    background-color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
.nav-bar {
    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: 0 0.9375rem;
    padding-top: var(--status-bar-height); /* Ensure padding top includes status bar */
    box-sizing: border-box;
    z-index: 100;
    border-bottom: 0.03125rem solid #f5f5f5;
}
.nav-placeholder {
    height: calc(2.75rem + var(--status-bar-height));
}
.back-icon {
    width: 1.25rem;
    height: 1.25rem;
}
.nav-title {
    font-size: 1.0625rem;
    font-weight: bold;
    color: #333;
}
.nav-right {
    width: 1.25rem;
    display: flex;
    justify-content: flex-end;
}
.more-dots {
    display: flex;
    gap: 0.125rem;
}
.dot {
    width: 0.1875rem;
    height: 0.1875rem;
    background-color: #333;
    border-radius: 50%;
}
.message-list {
    padding: 0 0.9375rem;
}
.message-item {
    display: flex;
    align-items: center;
    padding: 0.9375rem 0;
    border-bottom: 0.03125rem solid #f5f5f5;
}
.icon-wrapper {
    position: relative;
    margin-right: 0.9375rem;
}
.msg-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
}
.red-dot-badge {
    position: absolute;
    top: 0;
    right: 0;
    width: 0.5rem;
    height: 0.5rem;
    background-color: #FF3B30;
    border-radius: 50%;
    border: 0.0625rem solid #fff;
}
.content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3125rem;
}
.msg-title {
    font-size: 0.875rem;
    font-weight: bold;
    color: #333;
}
.msg-time {
    font-size: 0.75rem;
    color: #999;
}
.msg-preview {
    font-size: 0.8125rem;
    color: #666;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    width: 15.625rem;
}