.tab-btn {
    flex: 1;
    border-radius: 0.375rem;
    padding: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s;
    border: none;
    cursor: pointer;
    background: transparent;
}
.tab-active {
    background: #fff;
    box-shadow: 0 1px 3px rgb(0 0 0 / 0.1);
    color: #0f172a;
}
.tab-disabled {
    color: #94a3b8;
    cursor: not-allowed;
}
.badge-soon {
    margin-left: 0.25rem;
    font-size: 0.7rem;
    background: #fef3c7;
    color: #b45309;
    padding: 0.1rem 0.4rem;
    border-radius: 9999px;
}
.phone-login-group {
    display: flex;
    align-items: center;
    border: 1.5px solid #c7d2fe;
    border-radius: 0.625rem;
    background: #eef2ff;
    padding: 0 0.75rem 0 0;
    transition: border-color 0.2s, box-shadow 0.2s;
    cursor: text;
    width: 100%;
}
.phone-login-group:focus-within {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}
.phone-login-prefix {
    color: #1e1b4b;
    font-size: 0.95rem;
    font-weight: 700;
    white-space: nowrap;
    padding: 0.7rem 0.75rem;
    border-right: 1.5px solid #c7d2fe;
    margin-right: 0.6rem;
    user-select: none;
    flex-shrink: 0;
    letter-spacing: 0.01em;
}
.phone-login-group input[type="text"],
.phone-login-group input[inputmode="numeric"] {
    flex: 1;
    border: none;
    padding: 0.7rem 0;
    font-size: 0.95rem;
    font-family: inherit;
    font-weight: 500;
    background: transparent;
    outline: none;
    color: #1e1b4b;
    min-width: 0;
}
.phone-login-group input::placeholder {
    color: #a5b4fc;
    font-weight: 400;
}